CN105143773A - Heat exchanger for cooking apparatus - Google Patents
Heat exchanger for cooking apparatus Download PDFInfo
- Publication number
- CN105143773A CN105143773A CN201380076020.0A CN201380076020A CN105143773A CN 105143773 A CN105143773 A CN 105143773A CN 201380076020 A CN201380076020 A CN 201380076020A CN 105143773 A CN105143773 A CN 105143773A
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- China
- Prior art keywords
- heat
- transfer pipe
- air
- heat transfer
- combustion chamber
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- 238000010411 cooking Methods 0.000 title claims abstract description 79
- 238000002485 combustion reaction Methods 0.000 claims abstract description 54
- 239000007789 gas Substances 0.000 claims description 75
- 238000007599 discharging Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 abstract description 24
- 239000000567 combustion gas Substances 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 13
- 230000002093 peripheral effect Effects 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0471—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
- F28F1/424—Means comprising outside portions integral with inside portions
- F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0056—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for ovens or furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a heat exchanger for a cooking apparatus, wherein heat transfer tubes having symmetrical upper and lower cross-sections, and left and right cross-sections, are arranged in an alignment so as to connect a combustion chamber and an exhaust tube, the heat transfer tubes are heated by a combustion gas passing through the heat transfer tubes, and air is circulated by means of a convection fan and discharged to the heated heat transfer tubes, and thus the air, the direction of which has been changed by the convection fan, is rapidly heated by means of heat exchanging while passing through the at least two heat transfer tubes having symmetrical upper and lower, and left and right sides. The heat exchanger for the cooking apparatus according to the present invention has the advantages of: an increased effective area for heat transfer by air by enabling a large amount of heat to be distributed to a flat area on the heat transfer tubes; a short initial heating time and reduced cooking time due to rapid heating of the heat transfer tubes; reduced driving force required for the convection fan due to a smaller surface area of the heat transfer tubes; rapid heating of a large amount of air due to heat exchange by means of the large amount of air passing through the plurality of heat transfer tubes; reduced energy consumption due to rapid heating by means of a small amount of the combustion gas; no noise generation by allowing the air to pass through the flat heat transfer tubes; reduced pressure loss by slowing the flow rate of the combustion gas which passes through the inside of the heat transfer tubes; a minimized installation space by comprising the plurality of heat transfer tubes having narrow cross-sections; reduced driving force loss of the convection fan due to the alignment of the heat transfer tubes; and easy increasing and decreasing of capacity.
Description
Technical field
The present invention relates to a kind of heat exchanger for cooking apparatus, more specifically, relate to a kind of burning gases process be arranged on heat exchange unit and there is the heat-transfer pipe of upper and lower and symmetrical section, thus heat heat-transfer pipe by heat exchange action, air by convection fan circulates and is released to the heat-transfer pipe heated, thus, air is by carrying out heat exchange action by the heat exchanger for cooking apparatus heated with heat-transfer pipe.
Background technology
Usually, the utensil of cooking food mainly uses gas furnace, micro-wave oven or baking oven etc.
Now, baking oven is the cooking apparatus being boiled food after the space food of sealing by xeothermic heating, is divided into power type, gas type, electron type, compound baking oven according to thermal source.
Especially, gas type baking oven is using the high-temperature combustion gas that formed at burner combustion air and the fuel utensil as thermal source cooking food, is provided with the heat exchanger to the relatively low circulating air heat by conduction of temperature in baking oven inside.
Now, described heat exchanger is made up of heat exchange unit and convection fan, and described heat exchange unit comprises: combustion chamber, is provided with the burner being formed the burning gases of high temperature by the burning of air and fuel; Blast pipe, with described combustion chamber close to and discharge burning gases; And heat-transfer pipe, there is cylindrical shape, described combustion chamber is connected with blast pipe, and described convection fan is arranged to described heat exchange unit close, suck air, change the direction of the air sucked and described air is released to described heat-transfer pipe.
Therefore, the burning gases be supplied from the burner in described combustion chamber flow into described heat-transfer pipe, burning gases through heat-transfer pipe produce heat exchange action, to heat described heat-transfer pipe, the air sucked by described convection fan changes its direction to the outer surface of the described heat-transfer pipe of heating, be discharged by the space between described heat-transfer pipe and carry out heat exchange with heat-transfer pipe, being supplied in gas burner by under the state that heats at described air, thus by xeothermic cooking food.
Now, the heat-transfer pipe of described heat exchange unit has the hollow shape cylindrical shape of unification, and has specified diameter, makes a large amount of burning gases rapidly through described heat-transfer pipe.
But, at the cylindrical shape heat-transfer pipe of unification like this, because of fast flow velocity and heat-transfer pipe low heat conduction coefficient and be difficult to effectively pass on heat by the burning gases through heat-transfer pipe to inner circumferential surface, and, the temperature of the air heated because heat conduction efficiency is low is lower, needs longer cooking time thus, or, in order to shorten cooking time by improving air themperature, need to increase energy loss.
Therefore, various heat exchange instrument listing, is described these heat exchange instruments referring to Fig. 1 to Fig. 4 in recent years.
First, heat exchange instrument (No. 2003-262339th, Japanese Laid-Open Patent) as shown in Figure 1 to Figure 2 comprising: radial fan 1, the air supplied is discharged to vertical direction from front; Pipeline 2, is arranged to the periphery surrounding described radial fan 1; Combustion chamber 3, is vertically set on one end of described pipeline 2, with the mixture of burning gases and air; And discharge tool 4, be arranged on the other end of described pipeline 2, make the top being arranged on described combustion chamber 3, to discharge the burning gases through the movement of described pipeline 2.
Now, the inner peripheral surface of described pipeline 2 is provided with the flowing irregular flowing deflection instrument 2a making the burning gases of discharging from described combustion chamber 3.
Now, described flowing deflection instrument 2a has curved shape, the burning gases with uniform flowing are rotated in prescribed direction, because of described flowing deflection instrument 2a, the flowing of burning gases becomes warm current, thus the holdup time increases, and the coefficient of heat conduction increases because of the collision heat trnasfer between inner peripheral surface, the heat exchanger effectiveness of described pipeline 2 inner peripheral surface rises thus.
Now, at least plural described pipeline 2 is arranged between described combustion chamber 3 and discharge tool 4, and a large amount of air of discharging with the vertical direction to described radial fan 1 carries out heat exchange action, thus adds hot-air rapidly.
Preferably, described pipeline 2, in triangle arrangement, carry out heat exchange action, thus burning gases is through the inside of multiple described pipeline 2, add hot-air rapidly by continuous print heat exchange action with burning gases.
In addition, heat-exchange device (No. 1998-246438th, Japanese Laid-Open Patent) as shown in Figure 3 to Figure 4 comprising: radial fan rotor 10, and rotary actuation, discharges the air be supplied from front to vertical direction; Heat-exchange tube 20, is arranged to the periphery surrounding described radial fan rotor 10, guides the flowing of burning gases; And combustion chamber 30, be arranged on the end of described heat-exchange tube 20, supply burning gases to described heat-exchange tube 20.
Now, described heat-exchange tube 20 is formed as cylindric, and is formed with the sweep 40 of distortion in the part of the regulation of described heat-exchange tube 20.
Now, the section of two bodys 41,42 of described sweep 40 forms acute angle, thus described two bodys 41,42 are combined closely mutually.
Now, preferably, the angle that described two bodys 41,42 are close to the described sweep 40 of formation is 180 degree.
Further, described heat-exchange tube 20 is formed as cylindric, thus the cutting portion acute angle of described two bodys 41,42 has oval cross-section, and is formed as cylindric from the described heat-exchange tube 20 that described sweep 40 separates.
Therefore, the burning gases of discharging from described combustion chamber 30 are moved by described heat-exchange tube 20, sharply change, thus described burning gases are discharged rapidly by described heat-exchange tube 20 in described sweep 40 path.
But, according to heat exchange instrument as shown in Figure 1 to Figure 2, relative to cylindrical conduit 2 central horizontal be that benchmark passes through rapidly along the dynamic air of upper periphery surface current with level starting point, therefore, the flowing opposite of pipeline is not for heat transfer, inefficiency is passed in the heat exchange of air, because flowing deflection instrument 2a burning gases produce sound equipment noise at pipeline 2 internal impact, the pressure loss increases, thus the driving power of the pressure fan of supply burning gases increases, and the power of the convection fan of supply air increases.
And, heat-exchange device as shown in Figure 3 to Figure 4 has the structure being changed the flowing of burning gases by the sweep 40 of cylindrical shape heat-exchange tube 20 with 180 degree of angles flexibly, but, also be difficult to pass on heat by the burning gases through heat-exchange tube 20 to inner peripheral surface, heat time and the cooking time of heat-exchange tube 20 is extended because heat conduction efficiency is low, and, be difficult to carry out with a large amount of air heat exchange action because of the heat-exchange tube 20 of unification, the heat time of heat-exchange tube 20 increases, thus raising energy loss, increase in the internal pressure loss of heat-exchange tube 20, thus the driving power of pressure fan rises, basal area because of heat-exchange tube 20 is wide and should increase installation space.
Summary of the invention
The technical problem solved
The present invention proposes for solving described prior art problem, its object is to, a kind of heat-transfer pipe with upper and lower and that left and right is symmetrical section is provided to form a line, combustion chamber is connected with blast pipe, burning gases are through heat-transfer pipe, to heat heat-transfer pipe, air by convection fan circulation and heat-transfer pipe to heating is released, thus the air of by convection fan conversion direction is between upper and lower and symmetrical at least plural heat-transfer pipe and the heat exchanger for cooking apparatus be heated rapidly by heat exchange action.
Technical scheme
In order to reach object as above, the heat exchanger for cooking apparatus according to the present invention comprises: heat exchange unit, adds hot-air by heat exchange action; And convection fan, suck air, and discharge the air sucked to described heat exchange unit, wherein, described heat exchange unit comprises: combustion chamber, has hollow shape, and its inside is provided with burner, produces burning gases by described burner; Blast pipe, accepts and discharges the burning gases of discharging from described combustion chamber; And at least plural heat-transfer pipe, form a line, its section is in rectangular coordinate system, when separating point the horizontal line of predetermined distance for a to be positioned at from the zero point of X-axis, when separating point the vertical line of predetermined distance for b to be positioned at from the zero point of Y-axis, from the zero point of X-axis to a, the distance of Distance geometry point from the zero point of Y-axis to b of point is mutually different, and up and down and left and right symmetrical, described heat-transfer pipe makes described combustion chamber be communicated with described blast pipe, externally releases heat to add hot-air while the heat by accepting the burning gases passing through its inside is heated.
Heat exchanger for cooking apparatus according to the present invention comprises: combustion chamber, produces burning gases, to produce the hot blast for cooking by being arranged on inner burner; Heat exchange unit, comprises heat-transfer pipe and blast pipe, described heat-transfer pipe and described combustion chamber, and to make the burning gases produced in described combustion chamber carry out heat exchange through its inside, and described blast pipe is communicated with described heat-transfer pipe, to discharge burning gases; And convection fan, suck air, and discharge to the heat-transfer pipe of described heat exchange unit the air sucked, wherein, at least plural described heat-transfer pipe is arranged in parallel, and makes to form one from one end to end, distorts into
shape, make to have the line part and distortion portion that surround described convection fan, there is identical elliptical section from one end to end, and, described combustion chamber is communicated with described blast pipe, while the heat by accepting the burning gases passing through its inside is heated, externally release heat to add hot-air, and described ellipse is determined by following expression formula and scope.
According to the heat exchanger for cooking apparatus of the present invention, the central shaft of described heat-transfer pipe is arranged in be had on a straight line of predetermined angular, thus multiple described heat-transfer pipe forms a line.
According to the heat exchanger for cooking apparatus of the present invention, described heat-transfer pipe to be arranged to relative to vertical direction with 45 degree with tilted.
According to the heat exchanger for cooking apparatus of the present invention, the section of described combustion chamber has cylindrical shape, and the section of the described burner ends be connected with described heat-transfer pipe has square shape, and described heat-transfer pipe is arranged to surround described convection fan.
According to the heat exchanger for cooking apparatus of the present invention, described heat-transfer pipe is formed with multiple groove at predetermined intervals along outer surface, and the inner surface of described heat-transfer pipe is formed with the jut corresponding with described groove.
According to the heat exchanger for cooking apparatus of the present invention, the described groove of described heat-transfer pipe and described jut are formed by any one in circle, ellipse, dome-type or polygon.
According to the heat exchanger for cooking apparatus of the present invention, described convection fan comprises: first ring, and extraneous air is directed to inside; Second ring, separates predetermined distance with described first ring; And multiple air guide plate, the direction of the air be inhaled between described first ring and the second ring is directed to described heat exchange unit.
The effect of invention
As above according to the heat exchanger for cooking apparatus of the present invention, a large amount of heat distributions is to the flat part of heat-transfer pipe, thus heat conducting effective area increase is carried out to air, rapid heating heat-transfer pipe, initial heating time shorter and shorten cooking time, area because of heat-transfer pipe narrows and the driving power of convection fan reduces, heat exchange action is realized by a large amount of air through multiple heat-transfer pipe, thus the air that heating is a large amount of rapidly, Fast Heating is realized by burning gases in a small amount, to reduce energy loss, air is through flat heat-transfer pipe, therefore noise is not produced, the pressure loss is reduced by the flow velocity reduced through the burning gases of heat-transfer pipe inside, arrange and there are the long-pending multiple heat-transfer pipes of light section, to minimize installation space, heat-transfer pipe forms a line, thus reduce the power loss of convection fan, be easy to improve and reduce capacity.
Accompanying drawing explanation
Fig. 1 is the accompanying drawing of the heat exchange instrument illustrated according to prior art.
Fig. 2 is the accompanying drawing that the state that the pipeline outer peripheral face air along the heat exchange instrument according to prior art flows is shown.
Fig. 3 is the accompanying drawing of the heat-exchange device illustrated according to prior art.
Fig. 4 is the accompanying drawing that the state that the heat-exchange tube air along the heat-exchange device according to prior art flows is shown.
Fig. 5 illustrates the sectional view according to the heat exchanger for cooking apparatus of the present invention.
Fig. 6 illustrates the view sub-anatomy according to the heat exchanger for cooking apparatus of the present invention.
Fig. 7 a illustrates that the heat exchanger for cooking apparatus according to the present invention is by the front view of state used.
Fig. 7 b illustrates that the heat exchanger for cooking apparatus according to the present invention is by the side view of state used.
Fig. 8 is the accompanying drawing that the state that the heat-transfer pipe outer peripheral face air along the heat exchanger for cooking apparatus according to the present invention flows is shown.
The heat-transfer pipe section configuration of the heat exchanger for cooking apparatus according to the present invention is shown in the accompanying drawing that rectangular co-ordinate fastens by Fig. 9.
Figure 10 a, Figure 10 b, Figure 10 c are the accompanying drawing of the heat-transfer pipe arrangement states illustrated according to the heat exchanger for cooking apparatus of the present invention.
Figure 11 a, Figure 11 b, Figure 11 c, Figure 11 d are the accompanying drawing of the section configuration of the heat-transfer pipe illustrated according to the heat exchanger for cooking apparatus of the present invention.
Figure 12 a, Figure 12 b is the accompanying drawing of another embodiment of the heat-transfer pipe illustrated according to the heat exchanger for cooking apparatus of the present invention.
The explanation of Reference numeral
10: radial fan rotor 20: heat-exchange tube
30: combustion chamber 40: sweep
41,42: body
100: housing 101: cooking chamber
102: door 103: supporting projections portion
104: through hole
200: heat exchange unit 201: combustion chamber
201a: burner
202: blast pipe 203: heat-transfer pipe
203a: groove 203b: jut
300: convection fan 302: first ring
303: the second rings 304: air guide plate
400: air fuel supply department
500: cupboard
P: backing plate
Detailed description of the invention
With reference to the accompanying drawings embodiments of the invention are described in detail.
Fig. 5 illustrates the sectional view according to the heat exchanger for cooking apparatus of the present invention, Fig. 6 illustrates the view sub-anatomy according to the heat exchanger for cooking apparatus of the present invention, Fig. 7 a illustrates that the heat exchanger for cooking apparatus according to the present invention is by the front view of state used, Fig. 7 b illustrates that the heat exchanger for cooking apparatus according to the present invention is by the side view of state used, Fig. 8 is the accompanying drawing that the state that the heat-transfer pipe outer peripheral face air along the heat exchanger for cooking apparatus according to the present invention flows is shown, the heat-transfer pipe section configuration of the heat exchanger for cooking apparatus according to the present invention is shown in the accompanying drawing that rectangular co-ordinate fastens by Fig. 9.
Described heat exchange unit 200 comprises: combustion chamber 201, has hollow shape; Blast pipe 202, discharges the burning gases produced from described combustion chamber 201; And at least plural heat-transfer pipe 203, described combustion chamber 201 being communicated with described blast pipe 202, while the heat by accepting the burning gases passing through its inside is heated, externally releasing heat to add hot-air.
Described combustion chamber 201 has hollow shape, and its inside is provided with burner 201a, produces burning gases by described burner 201a.
The burning gases produced at described burner 201a are fed to described heat-transfer pipe 203 by described combustion chamber 201.
Described burner 201a accepts and mixing air and fuel, and makes the mist of mixing (air+fuel) on fire by other incendiary source, thus produces the burning gases of high temperature.
At least plural heat-transfer pipe 203 forms a line, its section is in rectangular coordinate system, when separating point the horizontal line of predetermined distance for a to be positioned at from the zero point of X-axis, when separating point the vertical line of predetermined distance for b to be positioned at from the zero point of Y-axis, from the zero point of X-axis to a, the distance of Distance geometry point from the zero point of Y-axis to b of point is mutually different, and up and down and left and right symmetrical, and, described heat-transfer pipe 203 makes described combustion chamber 201 be communicated with described blast pipe 202, heat is externally released to add hot-air while the heat by accepting the burning gases passing through its inside is heated.
The section configuration of described heat-transfer pipe 203 is formed by any one in ellipse, tumbler shape, polygon.
Preferably, described heat-transfer pipe 203 is arranged to row, makes close to each other.
The central shaft of described heat-transfer pipe 203 is arranged in be had on a straight line of predetermined angular, thus multiple described heat-transfer pipe 203 forms a line.
Described heat-transfer pipe 203 closely forms a line, thus air is heated between the multiple described heat-transfer pipe 203 of heating.
Described heat-transfer pipe 203 is close to each other, and therefore around described heat-transfer pipe 203, thermal discharge increases, with rapid heating external air.
Described heat-transfer pipe 203 can be arranged to relative to vertical direction, with 45 degree with tilted, select, can be adjusted to the various angles (θ °) within 45 degree, thus can regulate the heat exchange action speed between burning gases and air according to user.
At described heat exchange unit 200, burning gases are fed to described combustion chamber 201, and the burning gases being fed to described combustion chamber 201 flow in described heat-transfer pipe 203, are heated by the heat exchange action between burning gases with described heat-transfer pipe 203.
Described combustion chamber 201 is formed as cylindric, and the end of the described combustion chamber 201 be connected with described heat-transfer pipe 203 is formed as square shape.
Described combustion chamber 201 accepts burning gases rapidly by cylindrical shape part, and its end is formed as square shape, makes to the described heat-transfer pipe 203 formed a line distributed combustion gas equably.
At described heat exchange unit 200, described heat-transfer pipe 203 and the air from described convection fan 300 discharge carry out heat exchange action, to add hot-air.
Described heat-transfer pipe 203 is arranged to surround described convection fan 300.
Described heat-transfer pipe 203 can be formed as
or the various shape such as " L ", make the outside surrounding described convection fan 300.
Preferably, described heat exchange unit 200 is made into
shape, makes delayed combustion gas through the time of flat oval heat-transfer pipe 203, and increases the time of carrying out heat exchange action with described heat-transfer pipe 203.Select according to user, the shape of described heat-transfer pipe 203 can make various shape.
At described heat exchange unit 200, by making burning gases be communicated to the flat part of described heat-transfer pipe 203 through the heat that flat oval heat-transfer pipe 203 is a large amount of, to heat rapidly described heat-transfer pipe 203.
Described heat exchange unit 200 is made has mutually different width L1 values and height L2 value, makes described heat-transfer pipe 203 be formed as flat ellipse, and select according to user, described heat exchange unit 200 can be made has various width L1 and height L2.
At described heat exchange unit 200, preferably, the height L2 of described heat-transfer pipe 203 is arranged to the width L1 being relatively greater than described heat-transfer pipe 203, is formed as oval with described heat-transfer pipe 203.
Described heat exchange unit 200 is provided with the multiple described heat-transfer pipe 203 carrying out heat exchange action with the air of discharging from described convection fan 300, to heat rapidly a large amount of air.
At described heat exchange unit 200, the outer surface along described heat-transfer pipe 203 is formed with multiple groove 203a at predetermined intervals, and, be formed with the jut 203b corresponding with described groove 203a at the inner surface of described heat-transfer pipe 203.
At described heat exchange unit 200, burning gases are carried out through the inside of described heat-transfer pipe 203 and described jut 203b collides continuously by making burning gases, to heat rapidly described heat-transfer pipe 203, air through the described heat-transfer pipe 203 of heating groove 203a and be heated rapidly by the heat exchange action between the outer surface of described heat-transfer pipe 203.
Described groove 203a and described jut 203b is formed by any one in circle, ellipse, dome-type or polygon.
Changed with the heat time of the described heat-transfer pipe 203 of heat exchange action heating by burning gases according to the shape of described groove 203a and described jut 203b, and to be changed by the heat time of the air of the heat exchange action heating between described heat-transfer pipe 203.
Described convection fan 300 comprises: first ring 302, is directed to inside by extraneous air; Second ring 303, separates predetermined distance with described first ring 302; And multiple air guide plate 304, the direction of the air be inhaled between described first ring 302 and the second ring 303 is directed to described heat exchange unit 200.
Preferably, described convection fan 300 carrys out unidirectional or bidirectional rotation by the power accepting to be arranged on outside motor, makes to suck air.
Preferably, to be arranged through the heat-transfer pipe 203 of described heat exchange unit 200 besieged for described convection fan 300.
At described convection fan 300, flow into inner air by described first ring 302 and be discharged to described heat exchange unit 200 by described air guide plate 304, and described air is heated by the heat exchange action between the heat-transfer pipe 203 of described heat exchange unit 200.
At described convection fan 300, according to the angle of described air guide plate 304 and the discharge direction of the air sucked change.
At described convection fan 300, select according to user, can by discharge direction and the discharge rate regulating the angle of described air guide plate 304, size and quantity to change air.
Heat exchanger for cooking apparatus according to the present invention is used as follows as constructed as above.
Now, be installed on cooking apparatus for the heat exchanger for cooking apparatus according to the present invention and be described by the state used.
First, described cooking apparatus is made up of housing 100, heat exchange unit 200, convection fan 300, air fuel supply department 400 and cupboard 500, and described housing 100 comprises: the cooking chamber 101 of cooking food; The door 102 of the switching manipulation arranged before described cooking chamber 101; The relative supporting projections portion 103 arranged in the two sides of described cooking chamber 101; At multiple through holes 104 that a side of described cooking chamber 101 is arranged; And the operating portion that the side of outer surface is provided with (not shown), and described heat exchange unit 200 comprises: relatively to be formed in the outside of described housing 100 and described through hole 104 and inside is provided with burner 201a to produce the combustion chamber 201 of burning gases; Close to described combustion chamber 201 to discharge the blast pipe 202 of burning gases; And described combustion chamber 201 is communicated with and at least plural heat-transfer pipe 203 heated by making burning gases pass through its inside with blast pipe 202, and, described convection fan 300 is close to being arranged on described heat exchange unit and sucking or discharge air, described air fuel supply department 400 is connected with the combustion chamber 201 of heat exchange unit 200 and supplies burning gases, and described cupboard 500 covers and makes to surround described housing 100, heat exchange unit 200, convection fan 300 and air fuel supply department 400.Now, the backing plate P of accommodating food is supported the supporting projections portion 103 being inserted in described cooking chamber 101, under the state sealing described cooking chamber 101 inside by carrying out switching manipulation to described door 102, the operating portion (not shown) of described housing 100 is operated, the burning gases of then discharging from described air fuel supply department 400 flow into described heat-transfer pipe 203 through described combustion chamber 201, the burning gases flowing into described heat-transfer pipe 203 heat described heat-transfer pipe 203 by heat exchange action, cooking chamber 101 inner air of described housing 100 is forced to be drawn into described convection fan 300 by described through hole 104, thus be released to the described heat-transfer pipe 203 of heating, the air of releasing from described convection fan 300 is heated by the heat exchange action between described heat-transfer pipe 203, the air of heating is supplied to described cooking chamber 101 inside by the through hole 104 of described housing 100, with cooking food.
Further, the air carrying out heat exchange action in described cooking chamber 101 with food is forced to be drawn into described convection fan 300 by described through hole 104, is reheated and realizes the culinary art of food in aforesaid mode.
Now, preferably, the air being forced described cooking chamber 101 inside being drawn into described convection fan 300 is discharged by the described through hole 104 being formed in central part, is supplied to described cooking chamber 101 inner at described heat exchange unit 200 by heat exchange action by the air heated by the described through hole 104 being formed in periphery.
And, preferably, the heat-transfer pipe 203 that described convection fan 300 is arranged through described heat exchange unit 200 is besieged, and rotate by external motor, to suck the inner air of described cooking chamber 101, the air sucked flow into inside by described first ring 302, leaked-in air is discharged to described heat exchange unit 200 by the described air guide plate 304 arranged between described first ring 302 and the second ring 303, and the air of discharge is heated by carrying out heat exchange action with the heat-transfer pipe 203 of described heat exchange unit 200.
Now, described heat-transfer pipe 203 can be formed as
or the various shape such as " L ", make the outside surrounding described convection fan 300.
Further, preferably, described heat exchange unit 200 is made into
shape, makes delayed combustion gas through the time of flat oval heat-transfer pipe 203, and increases the time of carrying out heat exchange action with described heat-transfer pipe 203.Select according to user, the shape of described heat-transfer pipe 203 can make various shape.
And, the section of described heat-transfer pipe 203 is in rectangular coordinate system, when separating point the horizontal line of predetermined distance for a to be positioned at from the zero point of X-axis, when separating point the vertical line of predetermined distance for b to be positioned at from the zero point of Y-axis, from the zero point of X-axis to a, the distance of Distance geometry point from the zero point of Y-axis to b of point is mutually different, and up and down and left and right symmetrical, thus the section configuration of described heat-transfer pipe 203 is formed by any one in ellipse, tumbler shape, polygon.
Now, described heat-transfer pipe 203 is arranged to row, makes close to each other, and the central shaft of described heat-transfer pipe 203 is arranged in be had on a straight line of predetermined angular, thus multiple described heat-transfer pipe 203 forms a line.
Further, described heat-transfer pipe 203 is close to each other, and therefore around described heat-transfer pipe 203, thermal discharge increases, to heat recirculate air inside rapidly.
And, described heat-transfer pipe 203 can be arranged to relative to vertical direction with 45 degree with tilted, select according to user, the various angles (θ °) within 45 degree can be adjusted to, thus the heat exchange action speed between burning gases and air can be regulated.
And, the section of described combustion chamber 201 is formed as cylindric, and the end of the described combustion chamber 201 be connected with described heat-transfer pipe 203 is formed as square shape, thus accept burning gases rapidly by the cylindrical shape part of described combustion chamber 201, and to the described heat-transfer pipe 203 formed a line distributed combustion gas equably.
Now, the inside of described combustion chamber 201 is provided with burner 201a, and described burner 201a produces burning gases, burning gases to be fed to described heat-transfer pipe 203.
Now, described burner 201a accepts and mixing air and fuel, and makes the mist of mixing (air+fuel) on fire by other incendiary source, thus produces the burning gases of high temperature.
Further, preferably, described heat exchange unit 200 is arranged on the side of described housing 100, and sucks the inner air of described cooking chamber 101, the air that heating sucks, and described air is fed to again the inside of described cooking chamber 101.
Now, described heat exchange unit 200 is provided with the multiple described heat-transfer pipe 203 carrying out heat exchange action with the air of discharging from described convection fan 300, to heat rapidly a large amount of air.
Further, the multiple supporting projections portions 103 being formed in described cooking chamber 101 are formed in the mode separating predetermined distance in the vertical direction, to support multiple backing plate P of accommodating food, thus the food that culinary art is a large amount of rapidly.
And, described heat exchange unit 200 is covered hermetically by described cupboard 500, thus be not discharged to the outside by the air that the through hole 104 of described housing 100 is inhaled into described convection fan 300, and carry out heat exchange action with described heat-transfer pipe 203, inner to be fed to described cooking chamber 101 again by described through hole 104.
And, at described heat exchange unit 200, by heat-transfer pipe 203 being made flat ellipse and making burning gases be communicated to the flat part of described heat-transfer pipe 203 through the heat that flat oval heat-transfer pipe 203 is a large amount of, thus heat described heat-transfer pipe 203 rapidly.
Further, preferably, described air fuel supply department 400 is made up of burning blower fan, gas trap, air fuel suction apparatus and control device, and is connected with the burner 201a of described combustion chamber 201.
In addition, a side of the described cooking chamber 101 in described housing 100 is provided with steam outlet 106, and the outer surface of described housing 100 is provided with by being communicated with described steam outlet 106 steam generator 107 supplying steam.
Now, described steam generator 107 supplies steam to described steam outlet 106, to replenish described cooking chamber 101 inside by the xeothermic moisture carrying out the food of cooking, thus, prevent the moisture evaporating food because of xeothermic, food becomes dry or burns.
Further, preferably, the steam outlet 106 of described housing 100 is arranged on the one side with the right angle, side being formed with described through hole 104.
And, described heat exchange unit 200 is made has mutually different width L1 values and height L2 value, makes described heat-transfer pipe 203 be formed as flat ellipse, and, select according to user, described heat exchange unit 200 can be made has various width L1 and height L2.
Now, at described heat exchange unit 200, preferably, the height L2 of described heat-transfer pipe 203 is arranged to the width L1 being relatively greater than described heat-transfer pipe 203, is formed as oval with described heat-transfer pipe 203.
Therefore, by described convection fan through the air of described heat-transfer pipe along the outer peripheral face of described heat-transfer pipe with in the vertical direction long the elliptical section formed, to be heated rapidly.
Further, at described heat exchange unit 200, the outer surface along described heat-transfer pipe 203 is formed with multiple groove 203a at predetermined intervals, and, be formed with the jut 203b corresponding with described groove 203a at the inner surface of described heat-transfer pipe 203.
Now, at described heat exchange unit 200, burning gases are carried out through the inside of described heat-transfer pipe 203 and described jut 203b collides continuously by making burning gases, to heat rapidly described heat-transfer pipe 203, air through the described heat-transfer pipe 203 of heating groove 203a and be heated rapidly by the heat exchange action between the outer surface of described heat-transfer pipe 203, thus the cooking chamber 101 that described air is supplied to described housing 100 is inner.
And, described groove 203a and described jut 203b is formed by any one in circle, ellipse, dome-type or polygon, changed with the heat time of the described heat-transfer pipe 203 of heat exchange action heating by burning gases according to the shape of described groove 203a and described jut 203b, and to be changed by the heat time of the air of the heat exchange action heating between described heat-transfer pipe 203.
And, at described convection fan 300, according to the angle of described air guide plate 304 and the discharge direction of the air sucked change.
Further, preferably, described convection fan 300 selects the discharge direction be arranged so that by regulating the angle of described air guide plate 304 to change the air of suction according to user, with the heat-transfer pipe 203 making air be discharged to described heat exchange unit 200.
Although in the present invention by the shape of described heat-transfer pipe is defined as ellipse to be illustrated, select according to user, the various shapes of the section that described heat-transfer pipe can be formed as having up and down and left and right is symmetrical.
As mentioned above, according to heated by the heat exchange action between burning gases have up and down and section that left and right is symmetrical heat-transfer pipe 203 and carry out by the heat-transfer pipe 203 of heating and air the structure that heat exchange action adds hot-air, a large amount of heat distributions is to the flat part of heat-transfer pipe 203, to heat rapidly heat-transfer pipe 203, because heat-transfer pipe 203 is flat, available heat passes on area to increase, passed on by the round Realization heat of heat-transfer pipe 203, thus Fast Heating, and be heated rapidly by heat exchange action through the air of multiple heat-transfer pipe 203.
Although show and describe according to cooking apparatus of the present invention particularly with reference to illustrative embodiments of the present invention, but skilled person will appreciate that, when not deviating from the spirit and scope of the invention defined by following claim, the various changes in form and details can be made wherein.Therefore, it is desirable that, present embodiment is considered to be exemplary and not restrictive in all respects, be that scope of the present invention is specified in the reference made claims instead of description above.
Claims (9)
1. for a heat exchanger for cooking apparatus, it is characterized in that, comprising:
Heat exchange unit (200), adds hot-air by heat exchange action; And
Convection fan (300), sucks air, and discharges the air sucked to described heat exchange unit (200),
Wherein, described heat exchange unit (200) comprising:
Combustion chamber (201), has hollow shape, and its inside is provided with burner (201a), produces burning gases by described burner (201a);
Blast pipe (202), accepts and discharges the burning gases of discharging from described combustion chamber (201); And
At least plural heat-transfer pipe (203), form a line, its section is in rectangular coordinate system, when separating point the horizontal line of predetermined distance for a to be positioned at from the zero point of X-axis, when separating point the vertical line of predetermined distance for b to be positioned at from the zero point of Y-axis, from the zero point of X-axis to a, the distance of Distance geometry point from the zero point of Y-axis to b of point is mutually different, and up and down and left and right symmetrical, described heat-transfer pipe (203) makes described combustion chamber (201) be communicated with described blast pipe (202), heat is externally released to add hot-air while the heat by accepting the burning gases passing through its inside is heated.
2. for a heat exchanger for cooking apparatus, it is characterized in that, comprising:
Heat exchange unit (200), comprising: combustion chamber (201), and this combustion chamber (201) produce burning gases, to produce the hot blast for cooking by being arranged on inner burner (201a); Heat-transfer pipe (203), this heat-transfer pipe (203) is communicated with described combustion chamber (201), carries out heat exchange to make the burning gases produced in described combustion chamber (201) through its inside; And blast pipe (202), this blast pipe (202) is communicated with described heat-transfer pipe (203), to discharge burning gases; And
Convection fan (300), sucks air, and discharges to the heat-transfer pipe (203) of described heat exchange unit (200) air sucked,
Wherein, at least plural described heat-transfer pipe (203) is arranged in parallel, and makes to form one from one end to end, distorts into
shape, make to have the line part and distortion portion that surround described convection fan, there is identical elliptical section from one end to end, and, described combustion chamber (201) is communicated with described blast pipe (202), heat is externally released to add hot-air while the heat by accepting the burning gases passing through its inside is heated
Further, described ellipse is determined by following expression formula and scope,
[expression formula]
In rectangular coordinate system, separate point the horizontal line of predetermined distance for a to be positioned at from the zero point of X-axis, when separating point the vertical line of predetermined distance for b to be positioned at from the zero point of Y-axis, meet:
And,
3. the heat exchanger for cooking apparatus according to any one of claim 1 or 2, it is characterized in that, the central shaft of described heat-transfer pipe (203) is arranged in be had on a straight line of predetermined angular, thus multiple described heat-transfer pipe (203) forms a line.
4. the heat exchanger for cooking apparatus according to any one of claim 1 or 2, is characterized in that, described heat-transfer pipe (203) to be arranged to relative to vertical direction with 45 degree with tilted.
5. the heat exchanger for cooking apparatus according to any one of claim 1 or 2, it is characterized in that, the section of described combustion chamber (201) has cylindrical shape, and the section of the end of the described combustion chamber (201) be connected with described heat-transfer pipe (203) has square shape.
6. the heat exchanger for cooking apparatus according to any one of claim 1 or 2, is characterized in that, described heat-transfer pipe (203) is arranged to surround described convection fan (300).
7. the heat exchanger for cooking apparatus according to any one of claim 1 or 2, it is characterized in that, described heat-transfer pipe (203) is formed with multiple groove (203a) at predetermined intervals along outer surface, and the inner surface of described heat-transfer pipe (203) is formed with the jut (203b) corresponding with described groove (203a).
8. the heat exchanger for cooking apparatus according to claim 7, it is characterized in that, the described groove (203a) of described heat-transfer pipe (203) and described jut (203b) are formed by any one in circle, ellipse, dome-type or polygon.
9. the heat exchanger for cooking apparatus according to any one of claim 1 or 2, is characterized in that, described convection fan (300) comprising:
First ring (302), is directed to inside by extraneous air;
Second ring (303), separates predetermined distance with described first ring (302); And
Multiple air guide plate (304), is directed to described heat exchange unit (200) by the direction of the air be inhaled between described first ring (302) and the second ring (303).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2013/005044 WO2014196676A1 (en) | 2013-06-07 | 2013-06-07 | Heat exchanger for cooking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105143773A true CN105143773A (en) | 2015-12-09 |
Family
ID=52008298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380076020.0A Pending CN105143773A (en) | 2013-06-07 | 2013-06-07 | Heat exchanger for cooking apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6198089B2 (en) |
| CN (1) | CN105143773A (en) |
| WO (1) | WO2014196676A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2739001C2 (en) * | 2016-09-21 | 2020-12-21 | СТИЛФОРМ С.р.л. | Heat exchanger for baking ovens |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015111879B8 (en) * | 2015-07-22 | 2025-01-23 | Rational Aktiengesellschaft | cooking appliance with heat exchanger |
| PL3299730T3 (en) * | 2016-09-21 | 2019-11-29 | Steelform Srl | Heat exchanger for gas cooking oven |
| CN212346260U (en) | 2019-02-26 | 2021-01-15 | 沙克忍者运营有限责任公司 | Cooking system capable of being positioned on a support surface and mountable cooking system |
| CN214595581U (en) | 2020-04-06 | 2021-11-05 | 沙克忍者运营有限责任公司 | Cooking system positionable on a support surface |
| JP7380747B2 (en) * | 2022-04-21 | 2023-11-15 | 栗田工業株式会社 | Method for improving productivity of production process with heat exchange process |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2014196676A1 (en) | 2014-12-11 |
| JP2016521345A (en) | 2016-07-21 |
| JP6198089B2 (en) | 2017-09-20 |
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