CN110081712B - Wire laying brick, low heat loss and high heat efficiency electric heating structure - Google Patents
Wire laying brick, low heat loss and high heat efficiency electric heating structure Download PDFInfo
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- CN110081712B CN110081712B CN201910396283.9A CN201910396283A CN110081712B CN 110081712 B CN110081712 B CN 110081712B CN 201910396283 A CN201910396283 A CN 201910396283A CN 110081712 B CN110081712 B CN 110081712B
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- electric heating
- brick
- polygonal
- heating device
- heat loss
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a silk placing brick and a low heat loss and high heat efficiency electric heating structure, which comprises brick bodies, and a plurality of brick bodies, and is characterized in that: the upper part of each brick body is provided with a structure similar to a T shape, the bottom is a platform structure, two sides of the platform structure are respectively provided with an upward arc-shaped groove, two sides of the bottom surface of the upper part of each brick body are respectively provided with a downward arc-shaped groove, and a structure for installing electric heating devices from two sides is formed; the upper part of the brick body forms an easy-to-embed and take-out structure of the electric heating device; the formed low heat loss and high heat efficiency electric heating structure comprises a plurality of wire placing bricks which are distributed at the connecting points of the polygonal shapes and are connected into the polygonal structure through electric heating devices; the wire placing bricks are fixedly connected into a stable polygon through the fixing pieces, and all the electric heating devices are electrically connected into a whole end to form a polygonal electric heating structure; the electric heating device is not contacted with the inner cavity of the furnace body, and forms an electric heating structure with low heat loss and high radiation heat efficiency. The heat-insulating furnace has the characteristics of small heat storage quantity of the furnace wall, small heat loss of heating devices, high heat efficiency, long service life and the like.
Description
Technical Field
The invention relates to a yarn placing brick, in particular to a yarn placing brick and a low-heat loss and high-heat efficiency electric heating structure. Belongs to the technical field of metal heat treatment equipment.
Background
At present, the industrial furnace is widely used in industries such as metallurgy, casting, heat treatment, forging and the like, and the energy consumption of the industrial furnace is about 80% of that of a heat processing professional factory according to statistics. Therefore, the method for improving the heat efficiency of the industrial furnace, reducing the energy consumption and prolonging the service life of the furnace and the electric heating structure thereof is one of the important points of industrial furnace research. The industrial furnace structure comprises a furnace lining, a furnace frame, a heating device, a furnace machine and a control system. The furnace lining is made of refractory materials, heat insulating materials and building materials, and the main heat loss of the industrial furnace is heat accumulation of the furnace lining and heat dissipation of a furnace wall.
In the prior art, a spiral linear resistance wire is generally adopted as a heating element in an industrial furnace, and the spiral linear resistance wire is arranged on a wire placing brick to form a heating structure of the industrial furnace. The wire laying bricks are directly arranged on or connected with the furnace wall of the industrial furnace, so that the problems of large heat storage capacity of the furnace wall, large heat loss of heating devices, low radiant heat efficiency, short service life and the like exist. In order to reduce heat loss, some technical measures are taken, such as Chinese patent publication: the utility model patent number is 2017201049508, the name is 'a low heat loss and high temperature resistant wire laying brick', the patent number is '99124186X', the name is 'an inner furnace wall structure for reducing heat loss of the wire laying brick of the industrial furnace', the name is '991241835', and the name is 'a method for reducing heat loss caused by the wire laying brick of the industrial furnace', although the technical schemes adopt measures to reduce the heat loss, the related wire laying brick structures are directly connected with the furnace wall, so the problems of large heat storage capacity of the furnace wall, large heat loss of a heating device, low heat efficiency, short service life and the like still exist.
Disclosure of Invention
The invention aims to solve the problems of large heat storage capacity of a furnace wall, large heat loss of a heating device, low heat efficiency, short service life and the like of a wire laying brick structure in the prior art. The heat-insulating material has the outstanding substantial characteristics and obvious technical progress of small heat storage quantity of furnace walls, small heat loss of heating devices, high radiant heat efficiency, long service life and the like.
One of the purposes of the invention can be achieved by adopting the following technical scheme:
The silk placing brick comprises a brick body and is characterized in that: the upper part of the brick body is provided with a structure similar to a T shape, the bottom of the brick body is a platform structure, two sides of the platform structure are respectively provided with an upward arc-shaped groove, and two sides of the bottom surface of the upper part of the brick body are respectively provided with a downward arc-shaped groove to form a structure for installing electric heating devices from two sides; the projection area of the upper part of the brick body is smaller, and an easy-to-embed and take-out structure of the electric heating device is formed.
The second object of the invention can be achieved by adopting the following technical scheme:
The utility model provides a low heat loss, high thermal efficiency electric heating structure which the structural feature lies in: the electric heating device comprises a plurality of wire placing bricks, wherein the upper part of a brick body of each wire placing brick is provided with a structure similar to a T shape, the bottom of the brick body is of a platform structure, two sides of the platform structure are respectively provided with an upward arc-shaped groove, and two sides of the bottom surface of the upper part of the brick body are respectively provided with a downward arc-shaped groove to form a structure for installing electric heating devices from two sides; the projection area of the upper part of the brick body is smaller, and an easy-to-embed and take-out structure of the electric heating device is formed; the wire placing bricks are distributed at the connection points of the polygonal shapes and are connected into a polygonal structure through electric heating devices; the wire placing bricks are fixedly connected into a stable polygon through the fixing pieces, and all the electric heating devices are electrically connected into a whole end to form a polygonal electric heating structure; the electric heating device is not contacted with the inner cavity of the furnace body, and forms an electric heating structure with low heat loss and high radiation heat efficiency.
The second object of the invention can also be achieved by adopting the following technical scheme:
further, the upper part of the brick body of the silk placing brick is provided with a structure similar to a double T shape, the front end of the silk placing brick is provided with an electric heating device, and the rear end of the silk placing brick is connected with a fixing piece.
Further, the multi-layer three-dimensional polygonal non-contact furnace body type electric heating structure is formed by connecting a plurality of layers of electric heating devices into a polygonal structure.
Further, in the structure which is connected into a polygonal shape through the electric heating device, a gap is formed between the electric heating device and the inner cavity of the furnace body, so that a ventilation and heat dissipation structure is formed.
Further, the electric heating device is composed of a ceramic tube and an electric heating wire, the electric heating wire is wound on the ceramic tube, and the head and the tail of each electric heating wire are electrically connected into a whole and are provided with a positive input end and a negative input end of a power supply.
Further, the fixing piece comprises a sleeve hook with an opening and a connecting rod, the sleeve hook with the opening is connected with the rear end of the upper part of the brick body of the silk placing brick, and the connecting rod is fixedly connected with the inner wall of the furnace body.
Further, the electric heating device is connected into a polygonal structure, and the polygonal structure comprises a triangle structure, a quadrilateral structure, a pentagon structure, a hexagon structure, an octagon structure, a decagon structure or more than twelve polygon structures according to the size of the inner wall.
The invention has the following outstanding substantial characteristics and beneficial effects:
1. The invention comprises a plurality of silk placing bricks, wherein the upper part of a brick body of each silk placing brick is provided with a structure similar to a T shape, the bottom of the brick body is of a platform structure, two sides of the platform structure are respectively provided with an upward arc-shaped groove, and two sides of the bottom surface of the upper part of the brick body are respectively provided with a downward arc-shaped groove to form a structure for installing electric heating devices from two sides; the projection area of the upper part of the brick body is smaller, and an easy-to-embed and take-out structure of the electric heating device is formed; the wire placing bricks are distributed at the connection points of the polygonal shapes and are connected into a polygonal structure through electric heating devices; the wire placing bricks are fixedly connected into a polygon through the fixing pieces, and all the electric heating devices are electrically connected into a whole end to form a polygonal electric heating structure; the electric heating device is in non-contact with the inner cavity of the furnace body to form a low heat loss and high radiation heat efficiency electric heating structure; therefore, the wire laying brick structure can solve the problems of large heat storage capacity of the furnace wall, large heat loss of the heating device, low heat efficiency, short service life and the like in the prior art, and has the outstanding substantive characteristics and remarkable technical progress of small heat storage capacity of the furnace wall, small heat loss of the heating device, high heat efficiency, long service life and the like.
2. The invention uses the silk placing bricks as the connecting pieces, so that a plurality of ceramic tubes are connected into the polygonal layered structure, each polygonal layered structure forms an approximate circular heating body structure in the furnace body, the heat transfer area between the heating body and the heated body is increased, and the invention has the characteristics of uniform heating, high radiant heat efficiency and the like.
3. The invention is formed by connecting a plurality of ceramic tubes into a polygonal layered structure, and the added yarn placing bricks and the ceramic tubes are not contacted with the inner wall of the furnace body due to gaps between the ceramic tubes and the inner wall of the furnace body, so the invention has the characteristics and beneficial effects of thermal short circuit prevention, less heat accumulation, fast heat dissipation, convenience for heat diffusion to the inner cavity of the furnace, high radiant heat efficiency, long service life and the like.
Drawings
Fig. 1 is a schematic diagram of a layered structure of a yarn laying brick according to embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of a low heat loss and high heat efficiency electrothermal structure according to embodiment 1 of the present invention.
Fig. 3 is a schematic view of a fixing member according to embodiment 1 of the present invention.
Fig. 4 is a schematic structural view of a ceramic tube according to embodiment 1 of the present invention.
Fig. 5 is a schematic view showing a use state of embodiment 1 of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and specific examples.
Specific example 1:
Referring to fig. 1, the yarn placing brick according to this embodiment 1 includes a brick body 1, wherein an upper portion 1-1 of the brick body 1 has a structure similar to a "T" shape, a bottom portion is a platform structure 1-2, two sides of the platform structure 1-2 are respectively provided with an upward arc groove 1-2-1, two sides of a bottom surface of the upper portion 1-1 of the brick body 1 are respectively provided with a downward arc groove 1-1-1, and a structure for mounting an electric heating device from two sides is formed; the projection area of the upper part 1-1 of the brick body 1 is smaller, and an easy-to-embed and take-out structure of the electric heating device is formed. The fiber laying brick structure can be formed by stacking a plurality of fiber laying bricks.
Referring to fig. 2, the low heat loss and high heat efficiency electrothermal structure according to this embodiment 1 includes a plurality of filament placing bricks, the upper portion 1-1 of the brick body 1 of the filament placing bricks has a structure similar to a T shape, the bottom is a platform structure 1-2, two sides of the platform structure 1-2 are respectively provided with an upward arc groove 1-2-1, two sides of the bottom surface of the upper portion 1-1 of the brick body 1 are respectively provided with a downward arc groove 1-1-1, and a structure for installing electrothermal devices from two sides is formed; the projection area of the upper part 1-1 of the brick body 1 is smaller, and an easily-embedded and extracted structure of the electric heating device is formed; the wire placing bricks are distributed at the connection points of the polygonal shapes and are connected into a polygonal structure through the electric heating devices 2; the silk placing bricks are fixedly connected into a stable polygon through the fixing pieces 3, and the electric heating devices 2 are connected into a whole end to form a polygonal electric heating structure; the electric heating device 2 is not contacted with the inner cavity of the furnace body, and forms an electric heating structure with low heat loss and high radiation heat efficiency.
In this embodiment:
the upper part 1-1 of the brick body 1 of the silk placing brick is approximately double-T-shaped, the front end of the silk placing brick is provided with an electric heating device 2, and the rear end of the silk placing brick is connected with a fixing piece 3.
The electric heating device 2 is connected into a polygonal structure with a plurality of layers to form a multi-layer three-dimensional polygonal non-contact furnace body type electric heating structure.
In the structure which is connected into a polygonal shape through the electric heating device 2, a gap 4 is formed between the electric heating device 2 and the inner cavity of the furnace body, and a ventilation and heat dissipation structure is formed.
The electric heating device 2 is composed of a ceramic tube 2-1 and heating wires 2-2, the heating wires 2-2 are wound on the ceramic tube 2-1, and the heating wires 2-2 are connected end to end into a whole and provided with a positive input end 2-3 and a negative input end 2-4 of a power supply.
The electric heating device 2 is connected into a polygonal structure which is an octagonal structure.
Referring to fig. 3, the fixing member 3 according to this embodiment includes a sleeve hook 3-1 with an opening and a connecting rod 3-2, the sleeve hook 3-1 with an opening is connected with the rear end of the upper portion 1-1 of the brick body 1 of the yarn laying brick, and the connecting rod 3-2 is fixedly connected with the inner wall of the furnace body.
Referring to fig. 2 and 5, in practical application, an insulation layer 6 is arranged between an outer wall 5-1 and an inner wall 5-2 of a furnace body 5, each layer of octagonal structure is formed by eight wire laying bricks uniformly distributed in an inner cavity of the furnace body 5 to form eight octagonal corners, two ends of each eight electric heating devices 2 are respectively connected with one wire laying brick to form an octagonal electric heating structure, each electric heating device 2 is composed of a ceramic tube 2-1 and an electric heating wire 2-2, the electric heating wires 2-2 are wound on the ceramic tube 2-1, and the electric heating wires 2-2 are electrically connected into a whole end to end and are provided with a positive input end 2-3 and a negative input end 2-4 of a power supply; gaps 4 are formed between the electric heating devices 2 and the inner wall of the furnace body 5; the fixing piece 3 comprises a sleeve hook 3-1 with an opening and a connecting rod 3-2, the sleeve hook 3-1 with the opening is connected with the rear end of the upper part 1-1 of the brick body 1 of the yarn placing brick, and the connecting rod 3-2 is fixedly connected with the inner wall of the furnace body to form a stable octagonal structure. The wire laying bricks are used as connecting pieces, so that a plurality of ceramic tubes are connected into a polygonal layered structure, each polygonal layered structure forms an approximate circular heating body structure in the furnace body, the heat transfer area between the heating body and the heated body is increased, and in addition, the polygonal layered structure is formed by connecting a plurality of layers of electric heating devices 2, so that the multi-layer three-dimensional polygonal non-contact furnace body type electric heating structure is formed, and the multi-layer three-dimensional non-contact furnace body type electric heating structure has the characteristics of uniform heating, high heat efficiency and the like. Because the gap exists between the electric heating device 2 and the inner wall of the furnace body, and the yarn laying brick quart 1, the ceramic tube 2-1 and the heating wire 2-2 are not contacted with the inner wall of the furnace body, the electric heating device has the characteristics and beneficial effects of preventing thermal short circuit, less heat accumulation, fast heat dissipation, convenience in heat diffusion to the inner cavity of the furnace, high heat efficiency, long service life and the like. Because the projection area of the upper part of the brick body 1 is smaller, the electric heating device 2 is easy to be embedded and taken out, and has the characteristics of convenient disassembly, assembly and maintenance, etc.
Specific example 2:
the characteristic of this embodiment 2 is: the electric heating device 2 is connected into a polygonal structure, and the polygonal structure comprises a triangle structure, a quadrilateral structure, a pentagonal structure, a hexagonal structure, a decagonal structure or more than twelve polygonal structures according to the size of the inner wall. The procedure is as in example 1.
The above-mentioned embodiments are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can make equivalent substitutions or modifications according to the technical solution and the inventive concept thereof within the scope of the present invention.
Claims (4)
1. A low heat loss, high thermal efficiency electric heating structure, its characterized in that: the brick comprises a plurality of wire placing bricks, wherein the upper part (1-1) of a brick body (1) of the wire placing bricks is provided with a double T-shaped structure, and an electric heating device (2) is arranged at the front end of the brick body (1) and the rear end of the brick body is connected with a fixing piece (3); the fixing piece (3) comprises a sleeve hook (3-1) with an opening and a connecting rod (3-2), the sleeve hook (3-1) with the opening is connected with the rear end of the upper part (1-1) of the brick body (1) of the yarn placing brick, and the connecting rod (3-2) is fixedly connected with the inner wall of the furnace body; the bottom of the front end of the brick body (1) is a platform structure (1-2), two sides of the platform structure (1-2) are respectively provided with an upward arc-shaped groove (1-2-1), two sides of the bottom surface of the upper part (1-1) of the front end of the brick body (1) are respectively provided with a downward arc-shaped groove (1-1-1), and a structure for installing electric heating devices from two sides is formed; the projection area of the upper part (1-1) at the front end of the brick body (1) is smaller, and an easily-embedded and extracted structure of the electric heating device is formed; the wire placing bricks are distributed at the connection points of the polygonal shapes and are connected into a polygonal structure through electric heating devices (2); the wire placing bricks are fixedly connected into a stable polygon through fixing pieces (3), and all the electric heating devices (2) are connected into a whole end to form a polygonal electric heating structure; the electric heating device (2) is in non-contact with the inner cavity of the furnace body to form a low heat loss and high radiation heat efficiency electric heating structure; the electric heating device (2) is connected into a polygonal structure with a plurality of layers to form a multi-layer three-dimensional polygonal non-contact furnace body type electric heating structure.
2. The low heat loss, high heat efficiency electrothermal structure according to claim 1, wherein: in the structure which is connected into a polygonal shape through the electric heating device (2), a gap (4) is formed between the electric heating device (2) and the inner cavity of the furnace body, and a ventilation and heat dissipation structure is formed so as to reduce shielding.
3. A low heat loss, high heat efficiency electrothermal structure according to claim 1 or 2, characterized in that: the electric heating device (2) is composed of a ceramic tube (2-1) and heating wires (2-2), the heating wires (2-2) are wound on the ceramic tube (2-1), and the heating wires (2-2) are electrically connected end to end into a whole and are provided with a positive input end (2-3) and a negative input end (2-4) of a power supply.
4. A low heat loss, high heat efficiency electrothermal structure according to claim 1 or 2, characterized in that: the electric heating device (2) is connected into a polygonal structure, and the polygonal structure comprises a triangle structure, a quadrilateral structure, a pentagon structure, a hexagon structure, an octagon structure, a decagon structure or more than twelve polygon structures according to the size of the inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396283.9A CN110081712B (en) | 2019-05-14 | 2019-05-14 | Wire laying brick, low heat loss and high heat efficiency electric heating structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910396283.9A CN110081712B (en) | 2019-05-14 | 2019-05-14 | Wire laying brick, low heat loss and high heat efficiency electric heating structure |
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| CN110081712A CN110081712A (en) | 2019-08-02 |
| CN110081712B true CN110081712B (en) | 2024-04-30 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069994U (en) * | 1989-12-02 | 1991-01-23 | 方彪 | Energy-saving efficient medium temperature electric resistance furnace |
| CN2324214Y (en) * | 1997-12-23 | 1999-06-16 | 广州康普数码图像制作有限公司 | New multi-function display apparatus |
| JP2005282928A (en) * | 2004-03-29 | 2005-10-13 | Nippon Steel Corp | Fiber refractory block for continuous annealing furnace |
| TW201207344A (en) * | 2010-05-11 | 2012-02-16 | Hitachi Int Electric Inc | Heater supporting device |
| CN102560012A (en) * | 2012-02-01 | 2012-07-11 | 安徽省宁国新宁实业有限公司 | Box type heat treatment device |
| CN202734548U (en) * | 2012-06-21 | 2013-02-13 | 陈振胜 | Energy-saving type fireproof pouring material heating furnace |
| CN206518298U (en) * | 2016-10-31 | 2017-09-26 | 戚萧竣 | Connection component and accepting rack |
| CN207230144U (en) * | 2017-09-19 | 2018-04-13 | 浙江海洋大学 | A kind of telescopic square frame for intertidal zone field investigation |
| TWM562955U (en) * | 2018-01-24 | 2018-07-01 | 鴻成國際科技股份有限公司 | Heater supporting device |
| CN210399985U (en) * | 2019-05-14 | 2020-04-24 | 广东世创金属科技股份有限公司 | Wire laying brick and low-heat-loss and high-heat-efficiency electrothermal structure |
-
2019
- 2019-05-14 CN CN201910396283.9A patent/CN110081712B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2069994U (en) * | 1989-12-02 | 1991-01-23 | 方彪 | Energy-saving efficient medium temperature electric resistance furnace |
| CN2324214Y (en) * | 1997-12-23 | 1999-06-16 | 广州康普数码图像制作有限公司 | New multi-function display apparatus |
| JP2005282928A (en) * | 2004-03-29 | 2005-10-13 | Nippon Steel Corp | Fiber refractory block for continuous annealing furnace |
| TW201207344A (en) * | 2010-05-11 | 2012-02-16 | Hitachi Int Electric Inc | Heater supporting device |
| CN102560012A (en) * | 2012-02-01 | 2012-07-11 | 安徽省宁国新宁实业有限公司 | Box type heat treatment device |
| CN202734548U (en) * | 2012-06-21 | 2013-02-13 | 陈振胜 | Energy-saving type fireproof pouring material heating furnace |
| CN206518298U (en) * | 2016-10-31 | 2017-09-26 | 戚萧竣 | Connection component and accepting rack |
| CN207230144U (en) * | 2017-09-19 | 2018-04-13 | 浙江海洋大学 | A kind of telescopic square frame for intertidal zone field investigation |
| TWM562955U (en) * | 2018-01-24 | 2018-07-01 | 鴻成國際科技股份有限公司 | Heater supporting device |
| CN210399985U (en) * | 2019-05-14 | 2020-04-24 | 广东世创金属科技股份有限公司 | Wire laying brick and low-heat-loss and high-heat-efficiency electrothermal structure |
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| CN110081712A (en) | 2019-08-02 |
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