KR102136170B1 - Smoke tube type boiler - Google Patents

Abstract

An object of the present invention is to provide an associative boiler capable of preventing leakage of mixed gas and exhaust gas through a gap between a mix chamber and an ignition rod assembly.
Correlated boiler of the present invention for implementing this, the mixing gas and the mixing space for mixing the air and a flat type burner, the mixing chamber is disposed on the upper side of the combustion chamber; An ignition rod assembly that is assembled through one side of the mix chamber and extends across the upper portion of the combustion chamber to the lower side of the flat burner; And a sealing means for blocking the mixed gas of the mixing space and the exhaust gas of the combustion chamber from leaking through the gap between the mix chamber and the ignition rod assembly.

Description

Steam tube type boiler}

The present invention relates to an associative boiler, and more specifically, to prevent the leakage of mixed gas and exhaust gas when joining the ignition rod assembly through one side of the mix chamber with a flat type burner, and thermally igniting the ignition rod assembly. It relates to an associated boiler having a structure that prevents damage, prevents corrosion due to accumulation of condensate, and can reliably block leakage of condensate.

In general, the boiler is provided with a heat exchanger that exchanges heat between the combustion gas and the heating medium by the combustion of fuel to perform heating or supply hot water using the heated heating medium. Such a boiler may include a heat exchanger provided inside the heat exchanger, a burner assembled on an upper portion of the heat exchanger, and a combustion chamber in which combustion gas and air are supplied between the burner and the heat exchanger to perform combustion.

1 is a view schematically showing the configuration of a conventional associative boiler.

Conventional associative boilers, the blower 10 for supplying gas and air for combustion, a cylindrical burner 20 for burning a mixture of gas and air for combustion, and the combustion of the mixer by the burner 20 is made In order to prevent the heat generated from the combustion chamber 30, the combustion gas generated in the combustion chamber 30, and the heat medium 40 from being exchanged, and the heat generated in the combustion chamber 30 to the upper side around the cylindrical burner 20. For the heat insulating material 50, and is installed through the heat insulating material 50, and comprises an ignition rod 60 for igniting the mixer.

The heat exchanger 40 has an outer cylinder 41 and a plurality of tubes 42 provided therein, through which combustion gas generated in the combustion chamber 30 passes through, and a heat medium outside the tube 42. It may be configured to include a receiving tank 43.

According to the configuration of the related art boiler, there is a problem in that the height of the entire boiler is greatly increased and thus the boiler cannot be manufactured in a compact manner due to the long and vertical cylindrical burner 20. .

In addition, in the related art boiler, in order to prevent heat conduction to the ignition rod 60 when installing the ignition rod 60 through the combustion chamber cover 12 provided between the blower 10 and the cylindrical burner 20 Insulation material 50 was applied.

However, the heat insulator 50 causes cracks due to heat during combustion or is broken into small grains, causing problems such as blocking the tube 42, which is a combustion gas passage of the heat exchanger 40, and covers the combustion chamber for maintenance. When disassembling the mix chamber 11 including the 12 and the cylindrical burner 20, there is an inevitable problem of damage to the heat insulating material 50.

On the other hand, when the ignition rod 60 is installed on the heat exchanger 40 side, there is a problem in that the manufacturing process increases due to unnecessary processes and component addition, and there is a risk of heat medium leakage.

Prior art related to the structure of assembling the ignition rod on the combustion chamber cover as described above is disclosed in Patent Nos. 10-0575187 and 10-0581580.

In addition, when a flat type burner having superior combustion performance compared to the cylindrical burner 20 is applied, a heat exchanger is coupled to one side of the mix chamber and the mix chamber to which the flat type burner is combined to form a combustion chamber between the mix chamber and the heat exchanger. . At this time, when the ignition rod assembly is coupled through one side of the mix chamber, a problem in which unmixed gas in the unburned state leaks out through the gap between the mix chamber and the ignition rod assembly may occur. When such an unburned mixed gas (live gas) leaks to the outside, there is a problem that causes a fatal danger to the human body.

When the sealing means for preventing the leakage of the mixed gas is installed, since the high temperature heat of the combustion chamber is transmitted to the sealing means, the sealing means can be easily damaged by deterioration, so that the sealing means is installed while preventing damage due to deterioration. There is a problem that is not easy.

On the other hand, in the associated heat exchanger disclosed in European Patent Publication No. EP 2508834 and European Patent Publication No. EP2437022, an outer cylinder for providing a water tank in which a heat medium is accommodated is provided outside the tube. A correlated plate forming an upper surface of the water tank and supporting an upper end of the outer cylinder is coupled to an upper end of the tube, and a lower tube plate forming a bottom surface of the water tank and supporting a lower end of the outer cylinder is coupled to the lower end of the tube.

In the case of the heat exchanger configured as described above, since the heat medium accommodated in the water tank exerts a large water pressure on the bottom tube, a water resistance performance capable of withstanding high water pressure is required to maintain the durability of the bottom tube.

However, the lower tube provided in the related art heat exchanger has a problem in that durability is weak due to a lack of a structure capable of dispersing water pressure.

In addition, the conventional boiler type boiler is provided with a condensate receiving vessel on the lower side of the lower tube plate, and has a structure provided with a sealing member for preventing leakage of condensate between the edge portion of the lower pipe plate and the edge portion of the condensate receiver. , The sealing member is configured to support the lower end of the side surface of the lower tube.

However, due to the coupling structure of the sealing member between the lower tube plate and the condensate receiver, the condensate generated in the associated heat exchanger accumulates between the lower end of the lower tube plate and the sealing member, causing corrosion of the lower plate. There was, and when the sealing member is configured in a generally known form, there is a limitation that it is impossible to reliably prevent the leakage of condensate. Prior art related to the sealing structure of a conventional condensate receiver is disclosed in Korean Patent Publication No. 10-2005-0036152.

The present invention has been made to solve the above problems, and has an object to provide an associative boiler capable of preventing leakage of mixed gas and exhaust gas through a gap between a mix chamber and an ignition rod assembly.

Another object of the present invention, when installing the ignition rod assembly through the mix chamber to significantly reduce the size of the insulating material to prevent the blockage of the flow path due to the damage to the insulation, ignition rod assembly and spark rod sealing near the ignition rod assembly It is to provide an associative boiler having a cooling means for blocking heat transfer by means.

Another object of the present invention is to improve the water pressure resistance performance of the lower tube plate, to prevent corrosion due to the accumulation of condensate on the lower tube plate, and to provide an associative boiler made of a structure capable of reliably blocking leakage of condensate. .

Another object of the present invention is to provide an associative boiler capable of reducing the height of a boiler and improving heat exchange efficiency compared to an existing boiler.

The associative boiler of the present invention for realizing the above object has a mixing space in which combustion gas and air are mixed, and a flat type burner located over the entire area of the mixing space, and disposed on the upper side of the combustion chamber Mix chamber; An ignition rod assembly assembled to one side of the flat burner through one side of the mix chamber, and extending across the top of the combustion chamber to the bottom of the flat burner; Sealing means for blocking the mixed gas of the mixing space and the exhaust gas of the combustion chamber from leaking through the gap between the mix chamber and the ignition rod assembly; And cooling means for blocking the heat of combustion generated in the combustion chamber from being transferred to the sealing means.

A mix chamber flange and a burner flange are provided at one side of the mix chamber to close the mixing space, and the ignition rod assembly is to be assembled through the mix chamber flange and the burner flange at a position spaced apart from the mixing space. Can.

The sealing means may be provided at a portion where the mix chamber flange and the burner flange are in contact, and may include a first sealing member for preventing leakage of the mixed gas.

An insulating material for blocking heat transfer of combustion heat generated in the combustion chamber may be provided on an upper portion of the first sealing member. Unlike the prior art, the heat insulating material is significantly reduced in size.

A coupling plate through which the ignition rod assembly penetrates is provided at an upper portion of one side of the mix chamber, and the sealing means is provided between an upper portion of the mix chamber side and the coupling plate to prevent leakage of the exhaust gas. It may be configured to include a second sealing member for.

A plurality of contact protrusions protruding outward may be formed at a predetermined interval on the outer surface of the second sealing member.

The ignition rod assembly includes an ignition rod and a flame detection rod, and an upper portion of one side of the mix chamber includes an ignition rod coupling plate through which the ignition rod is coupled and a flame detection rod coupling plate through which the flame detection rod is coupled. Is provided, the sealing means may be provided between the upper portion of the mix chamber side and the ignition rod coupling plate, and between the upper portion of the mix chamber side and the flame detection rod coupling plate.

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The cooling means may include air-cooling means and water-cooling means.

A mix chamber flange and a burner flange are provided at one side of the mix chamber to close the mixing space, and the ignition rod assembly is assembled through the mix chamber flange and the burner flange, and the air-cooled cooling means comprises: The mix chamber flange and the burner flange may be cooled by the mixed gas introduced into the mixing space.

A mix chamber flange and a burner flange are provided at one side of the mix chamber to close the mixing space, the ignition rod assembly is assembled through the mix chamber flange and the burner flange, and the water-cooled cooling means comprises: The burner flange may be configured such that the burner flange is cooled by providing a corrugated plate flange contacting the heat medium of the heat exchanger provided below the combustion chamber to contact the burner flange.

A plurality of heat dissipation fins may be provided on one side of the mix chamber in which the ignition rod assembly is assembled.

An outer cylinder provided around the tube through which the combustion gas passes, forming an outer wall of the water tank in which the heat medium is accommodated outside the tube; And a horizontal portion forming a bottom surface of the tank, a vertical portion coupled to an outer surface of the lower portion of the outer cylinder, and connecting the outer end of the horizontal portion and the lower end of the vertical portion and convex outward. It can be configured to include; a bottom plate of a hard plate structure consisting of a round portion to disperse the water pressure of the heat medium made of a curved shape.

The vertical portion of the lower tube may be fitted to the outer surface of the lower end of the outer cylinder.

A flange portion extending a predetermined length outwardly is formed at an upper end of the vertical portion of the lower tube plate, and may be welded between the flange portion and the outer surface of the outer cylinder.

A condensate receiver which is provided at a lower side of the lower tube plate to collect condensate generated in the lower tube plate; And a leakage preventing member interposed between the edge portion of the lower tube plate and the edge portion of the condensate receiving portion to prevent leakage of condensate.

The leakage preventing member is provided in a form surrounding the lower portion of the round portion and the vertical portion of the lower tube plate, the condensed water formed on the horizontal portion of the lower tube plate is blocked by the leak preventing member to prevent movement in the lateral direction and to the lower side. It may fall.

The side wall of the condensate receiver is provided to be located near the boundary between the horizontal portion and the round portion of the lower tube plate to induce the drop of condensate.

An adhesive protrusion protruding in a direction toward the outer surface of the lower tube plate may be formed on the inner surface of the leakage preventing member.

The contact protrusions may be formed in plural at positions spaced up and down on the inner surface of the leak prevention member.

The rim portion of the condensate receiver is provided with a first flange portion extending from the upper end of the side wall of the condensate receiver to support the lower portion of the leak preventing member, and the leak preventing member and the first flange portion have corresponding positions. A fastening protrusion and a fastening groove that are fastened to each other may be formed.

On the edge portion of the condensate receiving portion, an extension portion extending upward from an outer end of the first flange portion and in close contact with an outer surface of the leak-preventing member, and a second flange portion extending outward from an end of the extension portion Including, the upper portion of the leak-preventing member and the second flange portion, the fitting protrusions and fitting grooves that are mutually fitted at the corresponding positions are formed to block the leakage of condensate and at the same time the position of the leak-preventing member is fixed Can be.

The inside of the condensate receiver may be provided with an exhaust guide formed with a plurality of perforations so that the combustion gas passing through the heat exchanger provided at the lower side of the combustion chamber is uniformly distributed and discharged over the entire region of the condensate receiver.

A step portion is formed on the bottom surface of the condensate receiver to guide the combustion gas passing through the exhaust guide to flow toward the condensate outlet, so that the discharge of the condensate and the flow of the combustion gas in the condensate receiver face the same direction. Can be formed.

The mix chamber may include a flat-shaped mix chamber body and the flat type burner disposed horizontally above the combustion chamber.

The spaced apart between the bottom surface of the mix chamber body and the top surface of the flat plate burner may be formed in a flat disk shape.

The heat exchanger further comprises a heat exchanger in which heat is exchanged between the heat of combustion and the heat medium of the combustion chamber, and the heat exchanger is configured such that a heat medium flow path is formed between an outer tube forming an outer wall of a water tank through which the heat medium is introduced and discharged and the heat medium is accommodated. A corrugated plate having a hard plate structure which is coupled to the inside of the outer cylinder and forms the combustion chamber, and a plurality of tubes made of a flat shape to allow the combustion gas generated in the combustion chamber to flow and heat exchange with the heat medium flowing outside, A turbulator coupled to the inside of the tube to induce turbulence in the flow of the combustion gas, and a multi-stage diaphragm provided between the outer tube and the tube to alternately switch the flow direction of the heat medium to the inside and outside in the radial direction. And, while supporting the lower end of the tube and may be provided with a bottom plate of a hard plate structure forming the bottom surface of the tank.

The flange of the correlation plate is formed to protrude outward from the top of the round portion, the ratio of the diameter difference between the outer diameter of the flange of the correlation plate and the inner diameter of the bottom of the round portion may be configured to be 20% or less.

The height between the bottom surface of the plate-shaped burner inserted in the correlation plate and the bottom surface of the correlation plate is set such that the end of the flame generated in the plate-shaped burner is spaced a predetermined distance from the bottom surface of the correlation plate, preferably. It can be set to a height of about 80mm.

The turbulator is coupled to the inner surface of the tube close to the combustion chamber in close contact with the tube to increase the thermal conductivity and induce turbulence in the flow of the combustion gas; And a lower turbulator coupled to the inner side of the tube to the lower side of the upper turbulator to induce turbulence in the flow of the combustion gas.

According to the associated boiler according to the present invention, in order to apply a flat burner that is easy to manufacture and has high productivity compared to a cylindrical burner, leakage of mixed gas and exhaust gas may be prevented by installing an ignition rod assembly through one side of the mix chamber. Can be prevented.

In addition, in using a flat type burner having a wider combustion area than a cylindrical burner, the cooling structure for the ignition rod assembly is advantageously coupled through one side of the mix chamber by gas and air entering the combustion area, It is possible to improve durability by preventing damage due to deterioration.

In addition, the lower tube plate is configured to surround the outer surface of the outer tube, and the corner connecting the horizontal and vertical parts of the lower tube plate is configured to disperse the hydraulic pressure of the heat medium by forming a convexly curved round portion to the outside to disperse the hydraulic pressure of the lower tube. Durability can be improved by improving performance and minimizing deformation.

In addition, the lower pipe of the heat exchanger is configured to surround the outer surface of the outer cylinder, and the leak-preventing member is configured to wrap the lower portion and the round portion of the lower pipe and the side wall of the condensate receiver is horizontal to the lower pipe. Arranged to be located near the boundary between the part and the round part to induce the condensate to fall, thereby preventing corrosion due to condensation.

In addition, by forming a contact protrusion protruding in the direction toward the outer surface of the lower tube plate on the inner surface of the leak-preventing member, the contact protrusion of the leak-preventing member protruding in the opposite direction to the action direction of the water pressure when the water pressure is applied It is in close contact with the outer surface to prevent leakage of condensate. In addition, when a plurality of contact protrusions are spaced apart vertically, leakage of condensate can be more reliably prevented.

In addition, it has a flat-shaped mix chamber body and a flat burner, lowers the corrugated plate formed of a hard plate structure to the lowest possible height for complete combustion of the mixer, and increases the heat exchange efficiency of the heat exchanger. Since the height of the boiler can be lowered, there is an effect of providing a highly efficient compact associative boiler.

1 is a view schematically showing the configuration of a conventional associative boiler,
Figure 2 is an external perspective view of an associated boiler according to an embodiment of the present invention,
Figure 3 is a perspective view of the bottom side of the mix chamber shown in Figure 2,
Figure 4 is an exploded perspective view showing a structure in which the ignition rod assembly is coupled to the mix chamber,
Figure 5 is an enlarged perspective view of the ignition rod assembly coupling,
Figure 6 is a front view of Figure 2,
7 is a partial cross-sectional perspective view taken along line AA of FIG. 6,
8 is a partially enlarged cross-sectional view taken along line AA of FIG. 6,
9 is a partially perspective perspective view of a boiler having an associated heat exchanger according to an embodiment of the present invention,
10 is an exploded perspective view of a main part of a boiler having an associated heat exchanger according to an embodiment of the present invention,
11(a) is a plan view of the leak-preventing member, and FIG. 11(b) is a cross-sectional view and an enlarged view along the line BB of FIG. 11(a),
12 is a cross-sectional view of the'A' portion of FIG. 1,
13 is an external perspective view of an associated boiler according to another embodiment of the present invention,
14 is a perspective view of the mix chamber,
15 is a bottom side perspective view of the mix chamber,
16 is an exploded perspective view showing a structure in which an ignition rod and a flame detection rod are coupled to a mix chamber,
17 is a plan view of the mix chamber and the heat exchanger,
18 is a partial cross-sectional perspective view taken along line CC in FIG. 17;
19 is a partial cross-sectional view taken along line CC of FIG. 17,
20 is a cross-sectional view showing the coupling structure of the correlator plate and the burner,
21 is a perspective perspective view of a heat exchanger,
22 is an exploded perspective view of a heat exchanger,
23 is a front view of the tube assembly and the multi-stage diaphragm combined state,
FIG. 24 is (a) a top view of FIG. 23, (b) a sectional view along line DD of FIG. 23, (c) a sectional view along line EE of FIG. 23,
25 is a plan view of a heat exchanger,
26 is a cross-sectional perspective view taken along line FF of FIG. 25,
27 is a perspective perspective view showing an embodiment of a tube assembly,
28 is an exploded perspective view of the tube assembly,
29 is a front view of the upper and lower turbulators,
30 is an enlarged perspective view of the upper turbulator shown in FIG. 29,
31 is a plan view of FIG. 30,
32 is a cross-sectional view (a) and (b) a sectional perspective view taken along line GG in FIG. 31,
FIG. 33 is a left side view of FIG. 30,
34 is a perspective perspective view of an associated boiler according to another embodiment of the present invention,
35 is an exploded perspective view of an associated boiler according to another embodiment of the present invention,
Figure 36 (a) is a plan view of the leak-preventing member, Figure 36 (b) is a cross-sectional view and an enlarged view along the line HH of Figure 36 (a),
37 is a cross-sectional view showing a sealing structure and a condensate discharge structure of an associative boiler according to another embodiment of the present invention.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 to 8, the associated boiler 1 according to an embodiment of the present invention, a mixing space (S) in which combustion air and gas supplied through the mixer inlet 110 connected to the blower are mixed And, a heat exchanger (200) having a flat burner (130) for burning the mixer, heat exchange between the mixing chamber (100) disposed above the combustion chamber (C), the heat medium and the combustion gas, and the heat exchanger Connected to one side of the condensate receiver 300 through which the condensate generated by condensing water vapor contained in the combustion gas passing through the 200 is collected and the combustion gas passing through the heat exchanger 200 is exhausted It is configured to include the exhaust duct 400.

In addition, the ignition rod assembly 140 which is assembled through one side of the mix chamber 100 and extends to the lower side of the flat burner 130 across the upper portion of the combustion chamber C, and the mix chamber ( 100) and a sealing means for blocking the mixed gas of the mixing space (S) and the exhaust gas of the combustion chamber (C) through the gap between the ignition rod assembly 140 to prevent leakage.

The burner applied to the present invention is a flat type burner 130, and is composed of a flat plate-like salt plate 131 formed with a plurality of salt holes 131a and a metal fiber 132 coupled to the salt plate 131. . Since the flat type burner 130 is provided over the entire area of the mixing space S, it is advantageous for the air-cooled structure by gas and air flowing into the flat type burner 130, and expands the combustion area to load per unit area. By reducing the emission of pollutants such as CO and NOx, combustion performance can be improved.

The ignition rod assembly 140 is assembled through one side of the mix chamber 100. The ignition rod assembly 140 may include a first ignition rod 141, a second ignition rod 142, and a flame detection rod 143. Insulators 141a, 142a, 143a made of an insulating material are coupled to the outer surfaces of the first ignition rod 141, the second ignition rod 142, and the flame detection rod 143, and the insulators 141a, 142a, Bushings 141b, 142b, and 143b for airtightness are coupled to the outer surface of 143a).

The first ignition rod 141, the second ignition rod 142 and the flame detection rod 143, the insulators 141a, 142a, 143a and the bushings 141b, 142b, 143b coupled to the outer surface thereof, Through the coupling holes (144a, 144b, 144c) formed in the coupling plate 144 is coupled.

The insulators (141a, 142a, 143a) are insulating means for preventing the occurrence of sparks due to energization during ignition, and the bushings (141b, 142b, 143b) are coupled with the outer surface of the insulators (141a, 142a, 143a) It is a structure for sealing the gap between the balls 144a, 144b, 144c.

4 and 5, an ignition rod assembly coupling portion 150 for assembling the ignition rod assembly 140 is provided at one side of the mix chamber 100. The ignition rod assembly coupling portion 150 is formed inside the coupling plate seating portion 151 in the form of a groove so that the coupling plate 144 is seated, and the second sealing member is formed inside the coupling plate seating portion 151 ( 180) includes a second sealing member seating portion 152, a first ignition rod 141, a second ignition rod 142, and a through hole 153 through which the flame detection rod 143 penetrates. . In addition, a plurality of heat dissipation fins 154 for dissipating heat of combustion are provided around the ignition rod assembly coupling portion 150.

6 to 8, the mix chamber 100 is provided on one side of the mix chamber flange 120 and the burner flange 133 connected to the edge of the flat burner 130 to be connected to each other. The mixing space (S) is closed, and the ignition rod assembly (140) is assembled through the mix chamber flange (120) and the burner flange (133) at a position spaced apart from the mixing space (S).

The sealing means is provided at a portion where the mix chamber flange 120 and the burner flange 133 contact each other, the first sealing member 160 to prevent the mixed gas flowing into the mixing space S from leaking to the outside Including, the first sealing member 160 may be made of a heat-resistant graphite material. In addition, an insulating material 170 for blocking heat transfer of combustion heat generated in the combustion chamber C is provided on an upper portion of the first sealing member 160.

In addition, the sealing means is provided between the upper portion of the mixing chamber 100 and the coupling plate 144, the second sealing member 180 to prevent the exhaust gas generated in the combustion chamber (C) from leaking to the outside ), the second sealing member 180 may be made of a rubber material. In addition, a plurality of contact protrusions 181 formed to protrude outward may be formed at regular intervals on the outer surface of the second sealing member 180, and the contact protrusions 181 may be formed from the bottom surface of the coupling plate 144. 2 Sealing member is in close contact with the upper surface of the seating portion 152 can further improve the sealing properties.

In addition, as described above, the spark rod assembly 140 is coupled to the outer surfaces of the insulators 141a, 142a, 143a, so that the coupling holes 144a, 144b, 144c of the fastening plate 144 are coupled. ) To prevent leakage of exhaust gas or mixed gas once again.

Hereinafter, with reference to FIGS. 7 and 8, the configuration and operation of the cooling means for blocking and dissipating heat from being transmitted to the sealing means will be described.

The cooling means is a structure for blocking heat transfer as a sealing means for preventing the heat of combustion generated in the combustion chamber (C) from leaking through the gap between the mix chamber (100) and the ignition rod assembly (140). However, it may include a water-cooled cooling means.

As described above, a mixing chamber flange 120 and a burner flange 133 are provided on one side of the mix chamber 100 to close the mixing space S, and the ignition rod assembly 140 includes the The mix chamber flange 120 and the burner flange 133 are assembled through, and the air-cooled cooling means has the mix chamber flange 120 and the burner flange 133 by the mixed gas flowing into the mixing space S. It can be configured to be cooled by a convection method.

On the other hand, the heat exchanger 200 may be composed of an associated heat exchanger, the outer tube 210, the bottom surface of the combustion chamber (C) and the correlation plate 220 forming the upper surface of the heat exchanger 200, the correlation The upper end is penetrated and coupled to the tube insertion hole 221 formed in the plate 220 and a plurality of tubes 230 through which combustion gas flows through the inside, and the inside of the outer tube 210 outside the tube 230 It may be configured to include a water tank 240 in which the heat medium is accommodated. The heating medium may be heating water or hot water used for heating or hot water.

The water-cooled cooling means is provided so that the corrugated plate flange 222 contacting the heat medium of the heat exchanger 200 provided below the combustion chamber C is in contact with the burner flange 133, and the burner flange 133. And the sealing member 190 may be configured to be cooled by a conductive method.

In addition, as described above, a plurality of heat dissipation fins 154 are provided along one periphery of the ignition rod assembly 140 at one side of the mix chamber 100 in which the ignition rod assembly 140 is assembled. Will function.

According to the present invention as described above, by providing a sealing means and a cooling means in assembling the ignition rod assembly 140 through one side of the mix chamber 100 provided with a flat burner 130, the mixed gas and In addition to blocking the leakage of exhaust gas, it is possible to prevent the sealing means from being thermally damaged by combustion heat. In addition, it is possible to prevent the problem of tube obstruction due to the insulation material installed on one side of the lower area of the conventional mix chamber, and since only the lower part of the ignition rod assembly 140 uses the insulation material 170, the use of the insulation material can be minimized. While being able to safely assemble the ignition rod assembly 140, it is possible to prevent leakage of the mixer and exhaust gas due to damage to the sealing means.

9 to 12, the associated boiler 1 according to an embodiment of the present invention is coupled to the connection portion of the above-described heat exchanger 200 and the condensate receiver 300 to prevent leakage of condensate It is configured to further include a leak preventing member 500.

Referring to FIG. 9, the heat exchanger 200 includes an outer cylinder 210 and an mix chamber 100 forming an outer wall of a water tank S (see FIG. 12) in which the heating medium is introduced and discharged and the heating medium is accommodated. A plurality of tubes 220 to allow the combustion gas generated by the ignition of the burner to flow along the inside and heat exchange with the heat medium, and a correlated plate supporting the upper end of the tube 220 and forming an upper surface of the water tank S ( 230, the lower tube plate 240 supporting the lower end of the tube 220 and forming a bottom surface of the water tank S, and the tube 220 coupled to a position spaced up and down on the outer surface of the tube 220 It is configured to include a support plate 250 in which the movement path of the heating medium is formed while fixing the position of ).

Referring to FIG. 10, the lower tube plate 240 is made of a shape in which the upper portion is opened so as to surround and combine the lower outer surface of the outer cylinder 210, and a plurality of tube insertion holes through which the lower end of the tube 220 penetrates (241a) is formed to support the lower end of the tube 220 and the horizontal portion 241 forming the bottom surface of the water tank (S), and the vertical portion coupled to the outer surface of the lower end of the outer tube (210) ( 242), the outer end of the horizontal portion 241 and the lower end of the vertical portion 242 is formed in a convexly curved shape to the outside to form a round portion for dispersing the water pressure of the heat medium accommodated in the water tank (S) (243).

Referring to Figure 12, the vertical portion 242 of the lower tube 240 may be configured to be fitted into the outer surface of the lower end of the outer tube 210, the vertical portion 242 of the lower tube 240 ), a flange portion 244 extending a predetermined length to the outside is formed, and may be welded between the flange portion 244 and the outer surface of the outer cylinder 210.

The heat exchanger 200 is coupled so that the lower tube plate 240 surrounds the lower outer surface of the outer tube 210, and the outer side is connected to a corner connecting the horizontal portion 241 and the vertical portion 242 of the lower tube plate 240. By forming the convexly curved round portion 243, the water pressure of the heat medium can be dispersed, thereby improving the water pressure resistance performance of the lower tube 240 to minimize the deformation of the lower tube 240, thereby improving durability. have.

Hereinafter, a coupling structure of the heat exchanger 200 configured as described above, the condensate receiver 300 and the leak preventing member 500 will be described.

11 and 12, the leak-preventing member 500 is interposed between the edge of the lower pipe 240 and the edge of the condensate receiver 300 to prevent leakage of condensate. The body 510 of the leakage preventing member 500 is provided in a form surrounding the lower portion of the round portion 243 and the vertical portion 242 of the lower tube plate 240, the horizontal portion 241 of the lower tube plate 240 ) Condensed water (CW) is blocked by the lower portion 530 of the body 510, the movement in the lateral direction is blocked, and may fall to the lower side.

The side wall 310 of the condensate receiver 300 is provided to be positioned near the boundary between the horizontal portion 241 and the round portion 243 of the lower plate 240 to induce the condensate to fall.

In this way, the inner side of the lower portion 530 of the leak-preventing member 500 and the side wall 310 of the condensate receiver 300 are configured to be located near the boundary between the horizontal portion 241 and the round portion 243 of the lower tube plate 240. By doing so, the condensate (CW) formed on the bottom surface of the horizontal portion 241 of the lower tube plate 240 is moved to the lateral direction, but the inner side of the lower portion 530 of the leakage preventing member 500 and the side wall 310 of the condensate receiver 300 Ride down and flow down to be collected in the condensate receiver 300, thereby preventing the accumulation of condensate (CW) and corrosion of the lower tube 240 accordingly.

Meanwhile, a contact protrusion 520 protruding in a direction toward the outer surface of the lower tube plate 240 may be formed on the inner surface 510a of the leak prevention member 500. The close contact protrusion 520 may be formed of a plurality of close contact protrusions (521,522,523,524) at a position spaced up and down on the inner surface (510a) of the leak prevention member (500).

According to the configuration of the contact protrusion 520, the contact protrusion 520 of the leak-preventing member 500 protruding in a direction opposite to the direction in which the water pressure acts when the water pressure is applied is in close contact with the outer surface of the lower tube 240. The condensed water (CW) can be effectively prevented from leaking through the gap between the lower tube plate 240 and the leak-preventing member 500. In addition, when a plurality of the contact protrusions 520 are formed at positions spaced up and down, leakage of the condensed water CW can be more reliably prevented.

On the other hand, the first flange portion 320 extending from the top of the side wall 310 of the condensate receiving 300 to the outer side of the condensate receiving 300 to support the lower portion 530 of the leakage preventing member 500 ) Is provided, the lower portion 530 of the leak-preventing member 500 and the first flange portion 320 are formed with fastening protrusions 321 and fastening grooves 531 that are mutually fastened at corresponding positions. CW), and at the same time, the position of the leak prevention member 500 can be fixed.

In addition, the rim portion of the condensate receiving 300, an extension portion 330 extending upward from the outer end of the first flange portion 320 and in close contact with the outer surface of the leakage preventing member 500, the extension portion It includes a second flange portion 340 extending from the end of the (330) to the outside, the upper portion 540 and the second flange portion 340 of the leak-preventing member 500, the fitting is fitted to each other at the corresponding position The protrusion 541 and the fitting groove 341 are formed to block the leakage of condensate (CW), and at the same time, the position of the leakage preventing member 500 may be fixed.

According to the associated boiler (1) according to an embodiment of the present invention as described above, the structure of the lower tube 240 including the coupling structure and the round portion 243 between the lower tube 240 and the outer tube 210 The pressure-resistance performance and durability can be improved, and the accumulation of condensed water (CW) is caused by the positional relationship between the edge portion of the lower pipe plate 240 and the leak-preventing member 500 interposed between the edge portion of the condensate receiver 300. It can be prevented, it is possible to effectively prevent the leakage phenomenon of the condensed water (CW) by the configuration of the contact protrusion 520 formed on the leak-preventing member 500.

Hereinafter, the configuration and operation of the associative boiler 1'according to another embodiment of the present invention will be described with reference to FIGS. 13 to 37.

According to another embodiment of the present invention, the associative boiler 1'includes a mixing space S in which combustion gas and air are mixed, a flat mix chamber body 1100, and an upper side of the combustion chamber C. Mix chamber 1000 having a flat type burner 1300 disposed in the horizontal direction; The outer cylinder 2100 constituting the outer wall of the water tank B in which the heating medium is introduced and discharged and the heating medium is accommodated is coupled to the inside of the outer cylinder 2100 to form a heating medium flow path between the outer cylinder 2100 and the combustion chamber. Corrugated plate (2200) having a hard plate structure forming (C), and a plurality of tubes (2300) having a flat shape to allow the combustion gas generated in the combustion chamber (C) to flow along the inside and heat exchange with the heat medium flowing outside ), a turbulator (2400,2500) coupled to the inside of the tube (2300) to induce turbulent flow in the flow of the combustion gas, and provided between the outer cylinder (2100) and the tube (2300) of the heating medium A multi-stage diaphragm (2610, 2620, 2630) that induces the flow direction to alternately switch inward and outward in the radial direction, and a bottom plate forming the bottom surface of the water tank (B) while supporting the lower end of the tube (2300) A heat exchanger 2000 having a lower tube 2700 having a structure; And collecting the condensate (CW) generated in the lower pipe 2700 to lead to the condensate outlet 310 formed on one side, and connecting the combustion gas passing through the tube 2300 to the upper side of the condensate outlet 3100. It is configured to include a condensate receiver 3000 which leads to the exhaust duct 4000 side provided on one side of the outer cylinder 2100.

In addition, the present invention is to open and close the flow path of the air and gas passing through the pre-mixing chamber (5000) and the pre-mixing chamber (5000) in which the combustion air and gas supplied to the mix chamber (1000) are pre-mixed. It further includes a mixer control unit 6000 for adjusting the supply flow rate of the mixer.

13 to 19, the mix chamber 1000 is convex upward, but is assembled through a mix chamber body 1100 formed of a flat shape and one side of the mix chamber body 1100, and the combustion chamber (C) the ignition rod assembly 1400 extending to the lower side of the flat burner 1300 across the upper portion, and the mixing space through the gap between the mix chamber 1000 and the ignition rod assembly 1400 And sealing means 1600, 1700, 1800 for blocking the mixed gas of (S) and the exhaust gas of the combustion chamber (C) from leaking to the outside.

The burner applied to the present invention is a flat burner 1300, and is composed of a flat plate-shaped salt plate 1310 in which a plurality of salt holes 1310a are formed, and a metal fiber 1320 coupled to the salt plate 1310. . The mixing space S spaced between the bottom surface of the mix chamber body 1100 and the top surface of the flat plate burner 1300 is formed in a flat disk shape, so that the height of the mix chamber 1000 can be formed low.

In addition, unlike the conventional cylindrical burner, the flat burner 1300 is provided over the entire area of the mixing space S, and gas and air flowing into the flat burner 1300 are the most geographic of the flat burner 1300. The unit is supplied to a position close to the position where the sealing means 1600, 1700, and 1800 are provided, so that air-cooled cooling of the sealing means 1600 and 1800 by the gas and air is possible, and the combustion area is expanded to expand the unit. By reducing the load per area, it is possible to improve the combustion performance by reducing the emission of contaminants such as CO and NOx.

The ignition rod assembly 1400 that is assembled through one side of the mix chamber 1000 includes an ignition rod 1410 and a flame detection rod 1420, and the ignition rod 1410 includes a first ignition rod 1410- 1) and the second ignition rod (1410-2). Insulators 1410a and 1420a made of an insulating material are coupled to outer surfaces of the ignition rod 1410 and flame detection rod 1420, and bushings 1410b for maintaining airtightness on the outer surfaces of the insulators 1410a and 1420a. 1420b) are combined.

The ignition rod 1410 and the insulator 1410a and the bushing 1410b are fixed to the ignition rod coupling plate 1430, and the flame detection rod 1420 and the insulator 1420a and the bushing 1420b are combined with the flame detection rod. It is fixed to the plate 1440. The insulators 1410a, 1420a are insulating means for preventing the occurrence of sparks due to energization during ignition, and the bushings 1410b, 1420b are outer surfaces of the insulators 1410a, 1420a and an ignition rod coupling plate 1430, and It is a configuration for sealing the gap between the flame detection rod coupling plate (1440).

Referring to FIG. 16, an ignition rod assembly coupling portion 1500 for assembling the ignition rod assembly 1400 is provided at one side of the mix chamber 1000. The ignition rod assembly coupling portion 1500 includes a second sealing member seating portion 1510 formed in a groove shape so that the ignition rod coupling plate 1430 and a second sealing member 1700 coupled to the lower side thereof are seated, And a third sealing member seating portion 1520 formed in a groove shape so that the flame sensing rod coupling plate 1440 and the third sealing member 1800 coupled to the lower side thereof are seated. In addition, a plurality of heat dissipation fins 1530 for dissipating heat of combustion are provided around the ignition rod assembly coupling portion 1500.

Referring to FIGS. 17 to 19, a mix chamber flange 1110 and a burner flange 1330 connected to and supporting the edge portion of the flat burner 1300 are provided on one side of the mix chamber body 1100 so as to abut. It is sealed to the mixing space (S), and the ignition rod assembly (1400) is assembled through the mix chamber flange (1110) and the burner flange (1330) at a position spaced from the mixing space (S).

The sealing means, a first sealing member 1600 for preventing the mixed gas flowing into the mixing space (S) is leaked to the outside is provided in the portion where the mix chamber flange 1110 and the burner flange (1330) abut Including, the first sealing member 1600 may be made of a heat-resistant graphite material.

In addition, the sealing means is provided between the mix chamber flange 1110 and the ignition rod coupling plate 1430, the second sealing member 1700 for preventing the exhaust gas generated in the combustion chamber (C) from leaking to the outside , It is provided between the mix chamber flange 1110 and the flame detection rod coupling plate 1440 includes a third sealing member 1800 to prevent the exhaust gas generated in the combustion chamber (C) from leaking to the outside. The second sealing member 1700 and the third sealing member 1800 may be made of a rubber material, and the second sealing member 1700 and the third sealing member 1800 to minimize deformation of the rubber material due to high temperature ) Is manufactured separately and assembled as separate parts.

In addition, a plurality of contact protrusions 1710 protruding outward may be formed at regular intervals on the outer surface of the second sealing member 1700 and the outer surface of the third sealing member 1800, and the contact protrusion ( 1710) is in close contact with the bottom surface of the ignition rod coupling plate 1430, the second sealing member 1700, the bottom surface of the flame detection ball coupling plate 1440, and the upper surface of the third sealing member 1800, thereby sealing. It can be improved further.

In addition, as described above, by mixing the bushings 1410b and 1420b on the outer surface of the insulators 1410a and 1420a, the mixed gas and the mixed gas are leaked out of the mix chamber 1000 once again. Can be blocked.

Hereinafter, with reference to FIGS. 18 and 19, the configuration and operation of the cooling means for blocking and dissipating the heat of combustion is transmitted to the sealing means.

The cooling means is a configuration for blocking heat transfer as a sealing means for preventing leakage of combustion heat generated in the combustion chamber (C) through the gap between the mix chamber (1000) and the ignition rod assembly (1400). However, it may include a water-cooled cooling means.

As described above, one side of the mix chamber 1000 is provided so that the mix chamber flange 1110 and the burner flange 1330 come into contact to seal the mixing space S, and the ignition rod assembly 1400 is the The mix chamber flange 1110 and the burner flange 1330 are assembled through, and the air-cooled cooling means has the mix chamber flange 1110 and the burner flange 1330 by the mixed gas introduced into the mixing space S. It can be configured to be cooled by a convection method.

On the other hand, the heat exchanger 2000 may be composed of an associated heat exchanger, the outer cylinder 2100, the bottom surface of the combustion chamber (C) and the correlation plate (2200) forming the upper surface of the heat exchanger (2000), the correlation The upper end is penetrated and coupled to the tube insertion hole 2210a formed in the plate 2200, and a plurality of tubes 2300 through which combustion gas flows through the inside and the inside of the outer tube 2100 outside the tube 2300 It may be configured to include a water tank (B) in which the heat medium is accommodated. The heating medium may be heating water or hot water used for heating or hot water.

The water-cooled cooling means is provided so that the corrugated plate flange 2230 in contact with the heat medium of the heat exchanger 2000 provided on the lower side of the combustion chamber C is in surface contact with the burner flange 1330, and the burner flange 1330 ) And the sealing means 1600, 1700, 1800 may be configured to be cooled by a conduction method from the heat medium stored in the water tank B.

In addition, as described above, a plurality of heat dissipation fins 1530 are provided along one periphery of the ignition rod assembly 1400 on one side of the mix chamber body 1100 in which the ignition rod assembly 1400 is assembled. Will function as

According to the present invention as described above, the height of the mix chamber 1000 in comparison with the structure having a conventional cylindrical burner by having the mix chamber 1000 in a flat-shaped mix chamber body 1100 and a flat burner 1300 Can be significantly lowered.

In addition, by providing a sealing means and a cooling means in assembling the ignition rod assembly 1400 on one side of the mix chamber body 1100 having the flat burner 1300, leakage of mixed gas and exhaust gas is prevented. In addition to blocking, the sealing means can be prevented from being thermally damaged by combustion heat. Therefore, the ignition rod assembly 1400 can be safely assembled by not using an insulating material in the mix chamber 1000 provided with the flat burner 1300, and the thermal damage of the sealing means is prevented to prevent leakage of mixed gas and exhaust gas. Can be blocked.

Meanwhile, referring to FIG. 20, the correlation plate 2000 includes a bottom portion 2210 forming a bottom surface of the combustion chamber C, a side wall portion 2220 forming a side wall of the combustion chamber C, and the burner flange A round part 2240 connecting the upper end of the side wall part 2220 and an inner end of the corrugated plate flange 1330 and the bottom part 2210 including the correlated plate flange 1330 on which the 1330 is seated. ), and a round portion 2250 connecting the lower end of the side wall portion 2220.

Thus, by including the round portion (2240,2250) in the correlation plate 2000, it is possible to improve the durability of the correlation plate 2000 by dispersing the water pressure of the heat medium stored in the water tank (B). The ratio of the diameter difference between the outer diameter d1 of the corrugated plate flange 2230 and the inner diameter d2 at the bottom of the round portion 2240 is preferably configured to be 20% or less. When configured with such a diameter difference ratio, it is possible to uniformly control the flow rate and temperature of the water accommodated in the water tank (B).

In addition, the height (h) between the bottom surface of the flat burner 1300 and the bottom surface of the corrugated plate 2200 inserted into the correlated plate 2200 is the end of the flame generated in the flat burner 1300. It is set to be spaced a certain distance from the bottom surface of the correlation plate 2200, the height (h) is preferably set to a dimension of about 80mm when considering the length of the flame of the flat burner 1300. As such, the reason why the end of the flame is set to be spaced a predetermined distance from the bottom surface of the correlation plate 2200 is a constant between the end of the flame generated in the flat burner 1300 and the bottom surface of the correlation plate 2200. This is because the condition in which nitrogen oxide (NOx) and carbon monoxide (CO) are experimentally minimized can be secured only when space is secured.

In addition, by designing the height h of the correlation plate 2200 low, the height of the combustion chamber C is lowered, thereby reducing the overall height of the associative boiler 1'. That is, when the conventional cylindrical burner is applied, the height between the bottom surface of the burner and the bottom surface of the corrugated plate is about 190 mm, whereas in the case of the present invention, the height can be reduced to a dimension of about 80 mm, compared to the prior art. There is an advantage that can be reduced by about 40%.

On the other hand, in this embodiment, the electrode assembly 1400 is formed at a position close to one side of the mixer inlet 1200 connected to the blower 7000 to which the mixer is supplied to the mix chamber 1000. In this case, it is easy for the operator to access the electrode assembly 1400 through the mixer inlet 1200, thereby improving the convenience of maintenance.

In another embodiment, as shown in FIG. 2 described above, the electrode assembly 1400 may be provided on a side opposite to the mixer inlet 1200. In this case, since the mixer supplied from the blower 7000 is directly supplied to the electrode assembly 1400, there is an effect of preventing delay ignition.

21 to 26, the heat exchanger 2000, between the heat medium inlet 2110 and the heat medium outlet 2120 is formed between the outer tube (2100) and the outer tube (2100) through which the heat medium is introduced and discharged. Correlating plate 2200 coupled to the inside of the outer cylinder 2100 to form the flow path of the heating medium, and the flat burner 1300 is seated to form the combustion chamber C, the combustion gas generated in the combustion chamber C A plurality of tubes 2300 made of a flat shape that flows along the inside and heat-exchanges with the heat medium, and is coupled to the inside of the tube 2300 to induce the generation of turbulence in the flow of the combustion gas and the tube 2300 It comprises a tube assembly (10000) having a turbulator (2400, 2500) supporting the tube assembly, and a lower plate (2700) coupled to the condensate receiver (3000) supporting the tube assembly (10000).

On the outer surface of the tube 2300, a multi-stage diaphragm 2610, 2620, 2630 for guiding the flow of the heating medium is provided spaced up and down so that the flow direction of the heating medium is alternately switched radially inside and outside. The multi-stage diaphragms 2610, 2620, and 2630 are fixedly supported by the support 2640. The plurality of tubes 2300 are installed in the vertical direction so that the combustion gas generated in the combustion chamber (C) flows downward, spaced apart in the circumferential direction and disposed radially.

In this embodiment, the multi-stage diaphragm is composed of a plate-shaped upper diaphragm 2610, a middle diaphragm 2620, and a lower diaphragm 2630. Referring to (a) of FIG. 24, the upper diaphragm 2610 is formed with a tube insertion hole 2610a into which a tube 2300 is inserted, and an opening 2610b through which a heat medium passes in the center. Referring to (b) of FIG. 24, in the middle diaphragm 2620, a tube insertion hole 2620b is formed to be spaced from the outer surface of the tube 2300 and formed in the tube insertion hole 2620b and the tube 2300 The heat medium flows through the play. The central portion 2620b of the middle diaphragm 2620 has a closed structure. In one embodiment, the tube insertion hole 2620b may be configured with a structure in which two tubes 2300 are spaced apart from each other and inserted. Referring to (c) of FIG. 24, the lower diaphragm 2630 is formed with a tube insertion hole 2630a having the same structure as the upper diaphragm 2610 and an opening 2630b in the center.

According to this multi-stage diaphragm 2610, 2620, 2630 structure, as shown by arrows in FIGS. 25 and 26, the heating medium introduced into the inside of the outer cylinder 2100 through the heating medium inlet 2110, the lower separation membrane 2630 ) The heating medium flowing radially inward toward the opening 2630b formed in the central portion, and the heat medium flowing through the opening 2630b and flowing upward to the lower diaphragm 2630 is a tube insert formed radially in the middle diaphragm 2620 The heating medium distributed in the clearance space of (2620b) flows radially outward, and the heat medium flowing through the tube insertion hole (2620b) upwards of the middle diaphragm (2620b) is an opening (2610b) formed in the center of the upper diaphragm (2610). ), after flowing inward in the radial direction, passes through the opening 2610b and is discharged through the heat medium outlet 2120 formed on the upper side of the outer cylinder 2100.

In this way, since the flow direction of the heat medium is alternately switched inward and outward in the radial direction, the flow distance of the heat medium can be increased to improve the heat exchange efficiency of the heat exchanger 2000. Since heat exchange performance can be obtained, there is an effect that the height of the heat exchanger 2000 can be lowered. In addition, by increasing the flow rate of the heating medium, it is possible to prevent boiling due to local overheating, which may be caused when the heating medium stagnates.

Hereinafter, the configuration and operation of the tube assembly 10000 will be described with reference to FIGS. 27 to 33.

The tube assembly 10000 according to an embodiment of the present invention includes a tube 2300 having a flat shape to allow combustion gas generated in the combustion chamber C to flow along the inside and heat exchange with the heat medium flowing outside. An upper turbulator 2400 which is coupled to the inner surface of the tube 2300 close to the combustion chamber so as to be in surface contact with the tube 2300 to increase heat conductivity and induce the generation of turbulence in the flow of the combustion gas, and It is configured to include a lower turbulator 2400 coupled to the inside of the tube 2300 to the lower side of the upper turbulator 2400 to induce the generation of turbulence in the flow of the combustion gas.

The upper turbulator 2400 includes a tube contact surface 2410a, 2410b; 2410 that is in close contact with an inner surface of the tube 2300, and an incised portion 2430a, 2430b; 2430 of the tube contact surface 2410a, 2410b; 2410. It is configured to include a pressure support portion (2420a, 2420b; 2420) formed by bending in.

The tube contact surface 2410 is a first tube contact surface 2410a that is in surface contact with an inner surface of one side of the tube 2300, and a second tube contact surface 2410b that is in surface contact with the inner surface of the other side of the tube 2300 ) Is composed of a symmetrical structure.

The pressure support portion 2420 is configured to prevent deformation and breakage of the tube 2300 due to hydraulic pressure of the heating medium, and a part of the first incision portion 2430a of the first tube contact surface 2410a is bent and is second. A portion of the first pressure support portion 2420a protruding toward the tube contact surface 2410b and the second incision portion 2430b of the second tube contact surface 2410b are bent to protrude toward the first tube contact surface 2410a It is composed of a second pressure support (2420b).

The incised area of the first incision 2430a is formed to be larger than the incised area of the second incision 2430b, and the protruding end of the first pressure support 2420a is at the second tube contact surface 2410b. When in contact, and the pressure supporting portion 2420 is inserted into the inside of the tube 2300, the protruding end of the second pressure supporting portion 2420b penetrates through the first incision 2430a to the inner surface of the tube 2300. It is provided to contact.

According to this configuration, the first pressure support portion 2420a supports to maintain the shape of the first tube contact surface 2410a and the second tube contact surface 2410b when the hydraulic pressure is applied, and the second pressure support unit 2420b ) Further supports the tube 2300 supported by the first tube contact surface 2410a and the second tube contact surface 2410b.

And, as shown in Figure 33, the first pressure support portion 2420a and the second pressure support portion 2420b are provided in a plurality of spaced apart in the front-rear direction and the vertical direction, the first pressure support portion 2420a located on the upper side ') and the first pressure supporting portion 2420a" located at the lower side are provided at positions that do not overlap in the vertical direction, and the second pressure supporting portion 2420b' located at the upper side and the second pressure supporting portion 2420b located at the lower side. ") It is also provided in a position that does not overlap in the vertical direction. According to this configuration, it acts on the tube 2300 by the first pressure supporting portion 2420a and the second pressure supporting portion 2420b provided in a zigzag form in the front and rear and up and down directions over the entire area of the upper turbulator 2400. The water pressure to be evenly distributed can effectively prevent deformation and breakage of the tube 2300.

In addition, the first pressure supporting portion (2420a) and the second pressure supporting portion (2420b) is made of a plate shape, but both sides having a large area are configured to have a structure arranged to form a direction parallel to the flow direction of the combustion gas. As indicated by the arrow in a), when the combustion gas flows, the flow resistance can be minimized in the process of the combustion gas passing through the first pressure supporting portion 2420a and the second pressure supporting portion 2420b.

Referring to FIG. 29, the lower turbulator 2500 divides the inner space of the tube 2300 on both sides, and the flat portion 2510 and the flat portion 2510 disposed in the longitudinal direction of the tube 2300 ) May be configured to include a first guide piece 2520 and a second guide piece 2530 that are spaced apart from each other along the lengthwise direction and alternately protrude inclined.

The first guide piece 2520 is disposed obliquely to one side of one side of the flat portion 2510, and the second guide piece 2530 is disposed obliquely to the other side of the other side of the flat portion 2510. Therefore, the heat medium introduced into the first guide piece 2520 and the second guide piece 2530 is respectively a second guide piece 2530 and a first guide disposed adjacent to opposite sides of the flat portion 2510. It is successively taken over by the piece 2520 so that the spaces on both sides of the flat part 2510 alternately flow.

The heating medium inlet end of the first guide piece 2520 is connected to one end of the flat part 2510 by a first connecting piece 2520a, and at the same time, one end of the flat part 2510 and a first connecting piece 2520a and Between the first guide pieces 2520, a first communication port 2520b is provided for fluid communication to both spaces of the flat portion 2510.

The heating medium inlet end of the second guide piece 2530 is connected to the other end of the flat part 2510 by a second connecting piece 2530a, and at the same time, the other end of the flat part 2510 and the second connecting piece 2530a and Between the second guide pieces 2530, second communication holes 2530b are provided for fluid communication to both spaces of the flat portion 2510.

In the first guide piece 2520 and the second guide piece 2530, a portion of the flat portion 2510 is cut and bent to both sides of the flat portion 2510, respectively, and the cut portion of the flat portion 2510 is cut off. It may be configured such that fluid communication is made to the spaces on both sides of the flat portion 2510 through the portion. In addition, support surfaces 2530a, 2530b; 2530 are formed on both side surfaces of the lower turbulator 2500 to protrude in the outer direction and contact the opposite inner surfaces of the tube 2300. In addition, the upper and lower portions of the lower turbulator 2500 are spaced up and down so as to contact both sides of the tube 2300, protruding forward and backward, and spaced apart vertically, the first support portion 2550 and the second support portion ( 2560) are formed respectively.

Meanwhile, referring to FIGS. 34 to 37, the associated boiler 1'passes through the heat exchanger 2000, and the condensate receiver 3000 through which condensate generated by condensing water vapor contained in the combustion gas is collected and discharged is collected. ), coupled to the connecting portion of the lower pipe 2700 of the heat exchanger 2000 and the condensate receiver 3000, and comprises a leak preventing member 3200 for preventing condensate from leaking.

Referring to FIG. 22 together, the lower plate 2700 is formed with a plurality of tube insertion holes 2710a through which the lower ends of the tubes 2300 penetrate, and supports the lower ends of the tubes 2300 and a water tank B ) Forming the bottom surface of the horizontal portion 2710, the vertical portion 2720 coupled to the lower end of the outer cylinder 2100, the outer end of the horizontal portion 2710 and the lower end of the vertical portion 2720, It is formed in a convexly curved shape and includes a round portion 2730 that disperses the water pressure of the heat medium, and has a plate structure.

As described above, by forming the round portion 2730 having a convexly curved shape on the corner connecting the horizontal portion 2710 and the vertical portion 2720 of the lower pipe 2700, the water pressure of the heating medium can be dispersed. It is possible to improve durability by minimizing deformation of the lower tube 2700 by improving the water pressure resistance performance of the lower tube 2700.

Hereinafter, the coupling structure of the condensate receiving 3000 and the leak preventing member 3200 will be described.

36 and 37, the leakage preventing member 3200 is interposed between the edge of the lower plate 2700 and the edge of the condensate receiver 3000 to prevent leakage of condensate. The body 3210 of the leak prevention member 3200 is provided in a form surrounding the lower portion of the round portion 2730 and the vertical portion 2720 of the lower pipe 2700, so that the horizontal portion 2710 of the lower pipe 2700 ) Condensed water (CW) is blocked by the bottom portion 2330 formed to extend to one side from the lower portion of the body 3210, the movement in the lateral direction is blocked, and may fall to the lower side.

Meanwhile, a contact protrusion 3220 protruding in a direction toward an outer surface of the lower tube plate 2700 may be formed on the inner surface 3210a of the leak-preventing member 3200. The close contact protrusion 3220 may be formed of a plurality of close contact protrusions 3220a, 3220b, 3220c, 3220d, 3220e, 3220f at positions spaced vertically apart from the inner surface 3210a of the leak prevention member 3200.

According to the configuration of the contact protrusion 3220, when the water pressure is applied, the contact protrusion 3220 of the leak-preventing member 3200 protruding in a direction opposite to the direction in which the water pressure is applied adheres to the outer surface of the lower tube plate 2700. The condensed water (CW) can be effectively prevented from leaking through the gap between the lower pipe 2700 and the leak-preventing member 3200. In addition, when a plurality of contact protrusions 3220 are formed at positions spaced up and down, leakage of condensed water CW can be more reliably prevented.

A first flange portion 3010 for supporting the leak-preventing member 3200 is provided at an edge portion of the condensate receiver 3000, and corresponding to the leak-preventing member 3200 and the first flange portion 3010 A fastening protrusion 3010a and a fastening groove 3230a that are mutually fastened to the position are formed. In addition, the edge portion of the condensate receiving 3000, an extension portion 3020 extending upward from the outer end of the first flange portion 3010 and in close contact with the outer surface of the leak-preventing member 3200, and Further comprising a second flange portion 3030 extending from the end of the extension portion 3020 to the outside, the upper portion of the leak-preventing member 3200 and the second flange portion 3030, mutually fitted at a corresponding position The fitting projection 3240a and the fitting groove 3240b are formed. According to this configuration, the leakage of the condensate (CW) can be blocked and the position of the leakage preventing member 3200 can be securely fixed.

On the other hand, referring to Figure 35, the inside of the condensate receiver 3000, a plurality of perforations so that the combustion gas passing through the heat exchanger 2000 is uniformly distributed and discharged over the entire area of the condensate receiver 3000, 3310b; 3310) is provided with an exhaust guide 3300 is formed. The size of the perforation 3310 may be formed in different sizes in consideration of the flow direction of the combustion gas.

In addition, on the bottom surface of the condensate receiver 3000, a step portion 3040 for guiding the combustion gas passing through the exhaust guide 3300 to flow toward the condensate outlet 3100 formed at one lower side of the condensate receiver 3000 Is formed, as shown in FIG. 37 by a dotted line arrow indicating a discharge direction of condensed water and a solid line arrow indicating a flow direction of combustion gas, the discharge of the condensed water and the flow of the combustion gas flow in the condensate receiver 3000 toward the same direction. do. According to this configuration, the condensed water is induced in the direction in which the exhaust gas flows to prevent corrosion of the lower pipe 2700 due to the accumulation of condensed water, and the condensate can be discharged smoothly by guiding it to the condensate outlet 3100 side. .

As described above, the present invention is not limited to the above-described embodiments, and a modified implementation obvious by a person skilled in the art to which the present invention pertains without departing from the technical spirit of the present invention claimed in the claims It is possible, and such modifications are within the scope of the present invention.

10: blower 11: mix chamber
12: combustion chamber cover 20: cylindrical burner
30: combustion chamber 40: heat exchanger
41: outer cylinder 42: tube
43: water tank 50: insulation
60: ignition rod 1,1': associative boiler
100: Mix chamber 110: Mixer inlet
120: Mix chamber flange 130: Flat type burner
131: salt plate 131a: salt plate
132: metal fiber 133: burner flange
140: ignition rod assembly 141: first ignition rod
142: second ignition rod 143: flame detection rod
141a,142a,143a: insulator 141b,142b,143b: bushing
144: bonding plate 144a, 144b, 144c: bonding hole
150: ignition rod assembly coupling portion 151: coupling plate seating portion
152: second sealing member seating portion 153: through hole
154: heat radiation fin 160: first sealing member
170: insulating material 180: second sealing member
181: close projection 190: sealing member
200: heat exchanger 210: outer cylinder
220: correlation plate 221: tube insertion hole
222: corrugated plate flange 230: tube
240: water tank 300: condensate receiving
400: exhaust duct 500: leak prevention member
510: body 510a: inner surface of the sealing member
520,521,522,523,524: Close protrusion 530: Lower part of sealing member
531: Fastening groove 540: Upper part of sealing member
541: fitting projection 1000: mix chamber
1100: Mix chamber body 1110: Mix chamber flange
1200: Mixer inlet 1300: Flat type burner
1310: salt plate 1330: burner flange
1400: ignition rod assembly 1410: ignition rod
1420: flame detection rod 1500: ignition rod assembly coupling
1600: first sealing member 1700: second sealing member
1800: Third sealing member 1900: Sealing member
2000: Heat exchanger 2100: External cylinder
2110: heat medium inlet 2120: heat medium outlet
2200: Correlation 2240: Round
2300: tube 10000: tube assembly
2400: upper turbulator 2500: lower turbulator
2610: upper septum 2620: middle septum
2630: lower diaphragm 2640: support
2700: Bottom plate 3000: Condensate tray
3100: Condensate outlet 3200: Leakage prevention member
3300: exhaust guide 3310: punching
4000: Exhaust duct 5000: Premix room
6000: Mixer control unit 7000: Blower

Claims (30)

A mixing chamber in which a combustion gas and air are mixed and a flat type burner positioned over the entire area of the mixing space, and a mixing chamber disposed above the combustion chamber;
An ignition rod assembly assembled to one side of the flat burner through one side of the mix chamber, and extending across the top of the combustion chamber to the bottom of the flat burner;
Sealing means for blocking the mixed gas of the mixing space and the exhaust gas of the combustion chamber from leaking through the gap between the mix chamber and the ignition rod assembly; And
Cooling means for blocking heat transfer from the combustion chamber to heat transfer to the sealing means;
Correlated boiler comprising a. According to claim 1,
A mixing chamber flange and a burner flange are provided on one side of the mix chamber to close the mixing space,
The spark rod assembly is associative boiler, characterized in that assembled through the mix chamber flange and the burner flange at a position spaced from the mixing space. According to claim 2,
The sealing means is provided at a portion where the mix chamber flange and the burner flange abut the associated boiler comprising a first sealing member for preventing leakage of the mixed gas. According to claim 3,
An associative boiler, characterized in that an insulating material for blocking heat transfer of combustion heat generated in the combustion chamber is provided at an upper portion of the first sealing member. According to claim 3,
The upper portion of the side of the mix chamber is provided with a coupling plate through which the ignition rod assembly penetrates and is coupled,
The sealing means is provided between the upper portion of the mixing chamber on one side of the mix plate and the coupling plate includes a second sealing member for preventing leakage of the exhaust gas. The method of claim 5,
An associative boiler characterized in that a plurality of contact protrusions protruding outward are formed at regular intervals on the outer surface of the second sealing member. The method of claim 1 or 3,
The ignition rod assembly includes an ignition rod and a flame detection rod,
An upper portion of the side of the mix chamber is provided with an ignition rod coupling plate through which the ignition rod is penetrated and a flame detection rod coupling plate through which the flame detection rod is penetrated and coupled,
The sealing means, an associated boiler, characterized in that provided between the upper portion of the mixing chamber and the ignition rod coupling plate, and between the upper portion of the mixing chamber and the flame detection rod coupling plate. delete According to claim 1,
The cooling means is an associated boiler characterized in that it comprises an air-cooled cooling means and a water-cooled cooling means. The method of claim 9,
A mixing chamber flange and a burner flange are provided on one side of the mix chamber to close the mixing space,
The ignition rod assembly is assembled through the mix chamber flange and the burner flange,
The air-cooled cooling means, the associated boiler, characterized in that the mixing chamber flange and the burner flange is cooled by the mixed gas flowing into the mixing space. The method of claim 9,
A mixing chamber flange and a burner flange are provided on one side of the mix chamber to close the mixing space,
The ignition rod assembly is assembled through the mix chamber flange and the burner flange,
The water-cooled cooling means, the associated boiler characterized in that the burner flange is cooled so that the corrugated plate flange in contact with the heat medium of the heat exchanger provided on the lower side of the combustion chamber is in contact with the burner flange. According to claim 1,
An associative boiler, characterized in that a plurality of heat dissipating fins are provided on one side of the mix chamber in which the ignition rod assembly is assembled. According to claim 1,
An outer cylinder provided around the tube through which the combustion gas passes, forming an outer wall of the water tank in which the heat medium is accommodated outside the tube; And
In addition to supporting the lower end of the tube, the horizontal part constituting the bottom surface of the water tank, the vertical part coupled to the outer surface of the lower end of the outer cylinder, and the outer end of the horizontal part and the lower end of the vertical part are convex outward. A bottom plate of a hard plate structure made of a curved shape and formed of a round portion for dispersing the water pressure of the heat medium;
Correlated boiler comprising a. The method of claim 13,
Associative boiler, characterized in that the vertical portion of the lower tube is fitted to the outer surface of the lower end of the outer cylinder. The method of claim 13,
A flange portion extending a predetermined length outward is formed at an upper end of the vertical portion of the lower tube plate,
An associative boiler, characterized in that welded between the flange portion and the outer surface of the outer cylinder. The method of claim 13,
A condensate receiver which is provided at a lower side of the lower tube plate to collect condensate generated in the lower tube plate; And
A leakage preventing member interposed between the edge portion of the lower tube plate and the edge portion of the condensate receiving plate to prevent leakage of condensate;
Correlated boiler comprising a. The method of claim 16,
The leak prevention member is provided in a form surrounding the lower portion of the round portion and the vertical portion of the lower tube,
The condensed water condensed on the horizontal part of the lower tube is blocked by the leakage preventing member, so that movement in the lateral direction is blocked and falls to the lower side. The method of claim 17,
The side wall of the condensate receiver is provided so as to be located near the boundary of the horizontal portion and the round portion of the lower tube plate to the associated boiler, characterized in that to induce the drop of condensate. The method of claim 16,
On the inner surface of the leak-preventing member, an associative boiler, characterized in that the contact protrusion protruding in the direction toward the outer surface of the lower tube is formed. The method of claim 19,
An associative boiler, characterized in that the contact protrusions are formed in plural at positions spaced up and down on the inner surface of the leakage preventing member. The method of claim 19,
A rim portion of the condensate receiver is provided with a first flange portion extending from the top of the side wall of the condensate receiver to supporting the lower portion of the leakage preventing member,
The leakage preventing member and the first flange portion, the associated boiler, characterized in that the fastening protrusions and fastening grooves are mutually fastened to the corresponding position. The method of claim 21,
On the edge portion of the condensate receiving portion, an extension portion extending upward from an outer end of the first flange portion and in close contact with an outer surface of the leak-preventing member, and a second flange portion extending outward from an end of the extension portion Including,
In the upper portion and the second flange portion of the leak-preventing member, fitting protrusions and fitting grooves that are mutually fitted at corresponding positions are formed to block leakage of condensate, and at the same time, the position of the leak-preventing member is fixed. Boiler. The method of claim 16,
The interior of the condensate receiver is equipped with an exhaust guide formed with a plurality of perforations so that the combustion gas passing through the heat exchanger provided at the lower side of the combustion chamber is uniformly distributed and discharged over the entire area of the condensate receiver. . The method of claim 23,
A step portion is formed on the bottom surface of the condensate receiver to guide the combustion gas passing through the exhaust guide to flow toward the condensate outlet, so that the discharge of the condensate and the flow of the combustion gas in the condensate receiver face the same direction. An associative boiler characterized in that it is formed. According to claim 1,
The mix chamber, a flat-type mix chamber body, and an associative boiler comprising the flat type burner disposed horizontally above the combustion chamber. The method of claim 25,
An associative boiler, characterized in that the spaced apart between the bottom surface of the mix chamber body and the top surface of the flat burner is formed in a flat disk shape. According to claim 1,
Further comprising a heat exchanger in which the heat exchange between the heat of combustion and the heat medium of the combustion chamber,
The heat exchanger is a corrugated plate of a hard plate structure coupled to the inside of the outer cylinder and forming the combustion chamber so that a heating medium flow path is formed between the outer cylinder and the outer cylinder forming the outer wall of the water tank in which the heating medium is introduced and discharged and the heating medium is accommodated. And, a plurality of tubes made of a flat shape to allow the combustion gas generated in the combustion chamber to flow along the inside and heat exchange with the heat medium flowing outside, coupled to the inside of the tube to induce turbulence in the flow of the combustion gas A turbulator to be provided, a multi-stage diaphragm provided between the outer cylinder and the tube to induce the flow direction of the heating medium to alternately switch radially inside and outside, and supporting the lower end of the tube and the bottom surface of the water tank Tube-type boiler, characterized in that provided with a bottom plate of a hard plate structure to form a. The method of claim 27,
The flange of the correlation plate is formed to protrude from the top of the round portion to the outside,
The associative boiler, characterized in that the ratio of the diameter difference between the outer diameter of the flange of the correlation plate and the inner diameter at the bottom of the round portion is 20% or less. The method of claim 27,
The height between the bottom surface of the plate-shaped burner inserted in the correlation plate and the bottom surface of the correlation plate is set such that the end of the flame generated in the plate-shaped burner is spaced a certain distance from the bottom surface of the correlation plate. Associated boiler. The method of claim 27,
The turbulator,
An upper turbulator coupled to the inner surface of the tube close to the combustion chamber to be in surface contact with the tube to increase heat conduction and induce the generation of turbulence in the flow of the combustion gas; And
A lower turbulator coupled to the inner side of the tube to the lower side of the upper turbulator to induce turbulence in the flow of the combustion gas;
The boiler is characterized in that consisting of.

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