CN210491230U - Annular electric heater - Google Patents
Annular electric heater Download PDFInfo
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- CN210491230U CN210491230U CN201921490368.5U CN201921490368U CN210491230U CN 210491230 U CN210491230 U CN 210491230U CN 201921490368 U CN201921490368 U CN 201921490368U CN 210491230 U CN210491230 U CN 210491230U
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- heating tube
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Abstract
The utility model discloses an annular electric heater relates to the industrial heater field, in particular to annular electric heater, a serial communication port, include fixed bolster, electric heating element, draw forth the stick, wherein: the fixed support is composed of an upper flange, a lower flange and a supporting and fixing plate, the upper flange and the lower flange are used for being connected with the circulating fan, and the supporting and fixing plate is located between the upper flange and the lower flange; the electric heating element is in a structure that a heating tube is wrapped outside a resistance wire, the heating tube is arc-shaped, the resistance wire penetrates through the heating tube, and the electric heating element is fixedly supported on the fixing plate; one end of the leading-out rod is connected with the electric heating element, and the other end of the leading-out rod penetrates through the upper flange to be led out, so that the electric heating element is led out from the top of the leading-out rod and is connected with an external cable. The utility model provides a problem that electric heating element can't effectively transmit heat to the work piece and lead to the electric stove thermal efficiency low.
Description
Technical Field
The utility model relates to an industrial heater field, in particular to annular electric heater.
Background
At present, resistance belts or resistance wires are mostly adopted by industrial air circulation electric furnaces as heating elements, and the heating elements are usually made into waveforms and hung on the furnace wall. Circulating air from the furnace top circulating fan flows through the guide device to be guided to the electric heating element on the furnace wall, enters the hearth from the furnace bottom after being heated, exchanges heat with a workpiece, and then enters the circulating fan to form air flow circulation.
Because the circulating air flow is usually not uniformly distributed, some electric heating elements are located in areas where no or little air flow passes through, so that dead zones are formed, and partial heat generated by the electric heating elements cannot be effectively transferred to workpieces, and the heat efficiency and the production efficiency of the furnace are affected. After the electric heating element is used for a period of time, the phenomenon of distortion or sagging often appears, and the contact with adjacent electric heating element easily causes short-circuit fault, and in case the electric stove use, a certain group of electric heating element breaks down, the heat supply in this region will reduce, causes the furnace temperature inhomogeneous easily, and the electric heater that adds maintains inconveniently, need demolish the guide plate usually, and the cost can't be practiced thrift to maintenance work volume greatly.
Aiming at the technical problem that the electric heating element in the prior art cannot effectively transfer heat to a workpiece to cause low heat efficiency of the electric furnace, no effective solution is provided at present.
Disclosure of Invention
The utility model provides an annular electric heater, its aim at solve electric heating element can't effectively transmit heat to the work piece and lead to the problem that the electric stove thermal efficiency is low.
In order to achieve the above object, the utility model provides an annular electric heater, including fixed bolster, electric heating element, draw forth the stick, wherein: the fixed support is composed of an upper flange, a lower flange and a supporting and fixing plate, the upper flange and the lower flange are used for being connected with the circulating fan, and the supporting and fixing plate is located between the upper flange and the lower flange; the electric heating elements are in a structure that a heating tube is wrapped outside a resistance wire, the heating tube is in a ring shape, the resistance wire penetrates through the heating tube, the electric heating elements are fixed on a supporting and fixing plate, and a plurality of electric heating elements are distributed on the supporting and fixing plate in a multilayer ring shape; one end of the leading-out rod is connected with the electric heating element, and the other end of the leading-out rod penetrates through the upper flange to be led out, so that the electric heating element is led out from the top of the leading-out rod and is connected with an external cable.
Optionally, in an embodiment of the present invention, the fixing bracket is made of heat-resistant steel.
Optionally, in an embodiment of the present invention, a gap between the resistance wire and the inner wall of the heating tube is filled with a material with high insulation and high thermal conductivity and is hermetically compacted.
Optionally, in an embodiment of the present invention, the fins are welded to the outer surface of the heating tube.
Optionally, in an embodiment of the present invention, the material of the heating tube is heat-resistant steel.
The technical scheme has the following beneficial effects:
1. the utility model discloses each group's electric heating element evenly distributed avoids electric heating element trouble air current maldistribution, does not influence the temperature homogeneity of electric stove, improves the electric stove thermal efficiency.
2. The utility model discloses electric heating element is novel, and intensity is good, and is fixed firm with the support, can not take place distortion or flagging, and the heating tube is uncharged with resistance wire insulating during operation in its own structure, can not cause adjacent electric heating element contact short circuit.
3. The utility model discloses annular electric heater is connected with the fan and forms a whole, because the wind of fan leaf is even basically at the circumferencial direction, therefore all electric heating element can contact the air current and can not form the blind spot, together hoist and mount with the fan, easy maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some practical examples of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of an annular electric heater according to the present invention;
fig. 2 is a front view of an annular electric heater according to the present invention;
the attached drawings are as follows: 1. the device comprises an upper flange, 2, a supporting and fixing plate, 3, a lower flange, 4, an electric heating element, 5 and a lead-out rod.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
Fig. 1 is a perspective view of an annular electric heater according to the present invention. The annular electric heater includes: fixed bolster, electric heating element 4, draw forth stick 5, wherein: the fixed support is composed of an upper flange 1, a lower flange 3 and a supporting and fixing plate 2, the upper flange 1 and the lower flange 3 are used for connecting the circulating fan, and the supporting and fixing plate 2 is positioned between the upper flange 1 and the lower flange 3; the electric heating element 4 is in a structure that a heating tube is wrapped outside a resistance wire, the heating tube is annular, the resistance wire penetrates through the heating tube, the electric heating element 4 is fixed on the supporting and fixing plate 2, and a plurality of electric heating elements 4 are distributed on the supporting and fixing plate 2 in a multilayer annular manner; one end of the leading-out rod 5 is connected with the electric heating element 4, and the other end of the leading-out rod penetrates through the upper flange 1 to be led out, so that the electric heating element 4 is led out from the top of the leading-out rod 5 and is connected with an external cable.
Specifically, the electric heating elements 4 have a novel structure, are excellent in strength, are firmly fixed to the support, and do not distort or sag, and due to the advantages of the structure, even if adjacent electric heating elements 4 are in contact, short circuits are not caused. Wherein, the plurality of groups of electric heating elements 4 are uniformly distributed around the fan impeller and are distributed on the supporting and fixing plate in a multilayer annular shape. If a certain group of electric heating elements 4 fails during use, the heat obtained by the air flow is still uniform, but the heat is reduced, and the temperature uniformity of the furnace is not affected.
Optionally, in an embodiment of the present invention, the fixing bracket is made of heat-resistant steel.
Optionally, in an embodiment of the present invention, a gap between the resistance wire and the inner wall of the heating tube is filled with a material with high insulation and high thermal conductivity and is hermetically compacted.
Specifically, electric heating element 4 adopts resistance wire outsourcing heat-resistant steel heating tube structure, and the heating tube is bent into the arc, and inside has worn the resistance wire, and the clearance between resistance wire and the heating tube inner wall is filled the material of high insulating high thermal conductivity and is sealed the compaction, therefore the heating tube is insulating with the resistance wire, and the during operation is uncharged. When the electric heating element 4 works, the heat emitted by the resistance wire is transmitted to the external heating pipe, and the heating pipe transmits the heat to the circulating air. Because the wind coming out of the fan impeller is basically uniform in the circumferential direction, all the electric heating elements 4 can have airflow to pass through, and no dead zone can be formed.
Optionally, in an embodiment of the present invention, the fins are welded to the outer surface of the heating tube.
Specifically, the fins are welded on the outer surface of the heating tube to increase the heat exchange area and reduce the surface load, and the electric heating element 4 with the structure has the advantages of high strength, difficult deformation and long service life.
Optionally, in an embodiment of the present invention, the heating tube is made of heat-resistant steel.
The utility model provides an annular electric heater is practical high-efficient, and convenient to detach maintains, has higher heat utilization ratio, and intensity is good, and can not cause adjacent electric heating element 4 contact short circuit, guarantees that the electric stove temperature is even.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. An annular electric heater, characterized by, includes fixed bolster, electric heating element (4), draws forth stick (5), wherein:
the fixed support is composed of an upper flange (1), a lower flange (3) and a supporting and fixing plate (2), the upper flange (1) and the lower flange (3) are used for being connected with a circulating fan, and the supporting and fixing plate (2) is located between the upper flange (1) and the lower flange (3);
the electric heating elements (4) are in a heating tube structure wrapped outside the resistance wires, the heating tube is annular, the resistance wires penetrate through the heating tube, the electric heating elements (4) are fixed on the supporting and fixing plate (2), and the electric heating elements (4) are distributed on the supporting and fixing plate (2) in a multilayer annular mode;
one end of the leading-out rod (5) is connected with the electric heating element (4), and the other end of the leading-out rod penetrates through the upper flange (1) to be led out, so that the electric heating element (4) is led out from the top of the leading-out rod (5) and is connected with an external cable.
2. An annular electric heater according to claim 1, wherein the fixing brackets are made of heat resistant steel.
3. The annular electric heater of claim 1, wherein the gap between the resistance wire and the inner wall of the heating tube is filled with a high-insulation high-thermal-conductivity material and hermetically compacted.
4. An annular electric heater according to claim 3, wherein the heating tube is welded with fins on its outer surface.
5. An annular electric heater according to claim 4, wherein the heating tube is made of heat resistant steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921490368.5U CN210491230U (en) | 2019-09-09 | 2019-09-09 | Annular electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921490368.5U CN210491230U (en) | 2019-09-09 | 2019-09-09 | Annular electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210491230U true CN210491230U (en) | 2020-05-08 |
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ID=70541188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921490368.5U Active CN210491230U (en) | 2019-09-09 | 2019-09-09 | Annular electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210491230U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540341A (en) * | 2022-03-12 | 2022-12-30 | 无锡恒业电热电器有限公司 | High-temperature high-pressure air energy storage electric heater |
-
2019
- 2019-09-09 CN CN201921490368.5U patent/CN210491230U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115540341A (en) * | 2022-03-12 | 2022-12-30 | 无锡恒业电热电器有限公司 | High-temperature high-pressure air energy storage electric heater |
| CN115540341B (en) * | 2022-03-12 | 2023-09-08 | 无锡恒业电热电器有限公司 | High-temperature high-pressure air energy storage electric heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211012 Address after: 400039 No. 15-4, building 1, No. 99, torch Avenue, Jiulongpo District, Chongqing Patentee after: Semtek thermal energy equipment (Chongqing) Co.,Ltd. Address before: 310016 room 1018, building 4, Kela apartment, Jianggan District, Hangzhou City, Zhejiang Province Patentee before: SMEIN thermal technology (Hangzhou) Co.,Ltd. |
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| TR01 | Transfer of patent right |