CN216017191U - High-temperature-resistant silicon carbide electric heating element - Google Patents
High-temperature-resistant silicon carbide electric heating element Download PDFInfo
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- CN216017191U CN216017191U CN202120608254.7U CN202120608254U CN216017191U CN 216017191 U CN216017191 U CN 216017191U CN 202120608254 U CN202120608254 U CN 202120608254U CN 216017191 U CN216017191 U CN 216017191U
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Abstract
The utility model discloses a high-temperature-resistant silicon carbide electrothermal element which is a cylindrical rod body and comprises a heating double-spiral pipe with the coaxial middle part, a conductive connector at the upper end part and a semicircular cold end with an electric conductor at the lower end part. The cross section of the heating spiral pipe is semicircular; the upper end part conductive connector and the cylindrical rod body are of an integral structure; the cylindrical cold ends at the lower end part have the same radial size with the heating spiral tubes, and the semicircular cold ends below the two heating spiral tubes of the double spiral tubes are mutually separated and independent; and a cold end part below the double spiral pipe is provided with a high-temperature-resistant T-shaped connecting piece. The utility model adopts the double-spiral tube structure, effectively improves the heat exchange area, has high heat transfer efficiency and saves energy. Meanwhile, the cross section of the heating spiral pipe is semicircular, so that heat can be efficiently, uniformly and quickly radiated to the surrounding environment, and the heating spiral pipe has the advantage of high heating temperature; in addition, a connecting piece reinforcing rod structure is additionally arranged, so that the strength of the double spiral pipe is improved, the service life is prolonged, and the production and operation cost is reduced.
Description
Technical Field
The utility model belongs to a high-temperature electric heating element, and particularly relates to a high-temperature-resistant silicon carbide electric heating element.
Background
The silicon carbide electric heating element is a rod-shaped nonmetal high-temperature electric heating element which is prepared by using a high-quality silicon carbide material as a main raw material through high-temperature silicification and crystallization. Compared with a metal electric heating element, the silicon carbide electric heating element has the advantages of high service temperature, oxidation resistance, corrosion resistance, long service life, small deformation, convenience in installation and maintenance and the like. The high-temperature electric furnace is widely applied to the fields of various high-temperature electric furnaces and other electric heating equipment in the industries of electronics, magnetic materials, powder metallurgy, ceramics, glass, semiconductors, analysis and assay, scientific research and the like. The silicon carbide electric heating element has larger specific resistance, the surface temperature of a heating part can reach 1450 ℃ when the silicon carbide electric heating element is heated in air, the existing silicon carbide electric heating element generally adopts a rod-shaped structure, heat generated in a heat section cannot be quickly transferred to the outer surface, and the element is easily damaged due to overlarge internal and external temperature difference, so that the silicon carbide electric heating element with high temperature resistance and long service life has to be developed through technical innovation.
Disclosure of Invention
The purpose of the utility model is as follows: the utility model aims to provide a high-temperature-resistant silicon carbide electric heating element with uniform electric heating temperature, high temperature and long service life by adopting a double-spiral structure aiming at the defects of the prior art.
The technical scheme is as follows: the utility model provides a high-temperature-resistant silicon carbide electric heating element which is a cylindrical rod body and comprises a heating double-spiral tube, a conductive connector and a semicircular cold end, wherein the middle part of the heating double-spiral tube is coaxial, the upper end part of the heating double-spiral tube is a conductive connector, and the lower end part of the heating double-spiral tube is a semicircular cold end connected with a power conductor; the cross section of the heating double spiral pipe is semicircular; the upper end part conductive connector and the cylindrical rod body are of an integral structure; the semicircular cold ends at the lower end part have the same radial size with the heating double-spiral tube, and the two heating parts and the semicircular cold ends of the heating double-spiral tube are mutually separated and independent; and the semicircular cold end is provided with a high-temperature-resistant T-shaped connecting piece.
The T-shaped connecting piece is provided with a left semicircular jack and a right semicircular jack which are correspondingly matched with the lower semicircular cold ends of the heating double spiral pipes; the lower semicircular cold ends of the heating double spiral pipes are respectively inserted into the left semicircular inserting holes and the right semicircular inserting holes of the T-shaped connecting piece; the middle part of the semicircular jack is provided with a hexagonal cylindrical reinforcing rod; the length of the hexagonal cylindrical reinforcing rod is matched with that of the heating double-spiral tube, and the hexagonal cylindrical reinforcing rod is matched with the inner hollow part of the conductive connecting body; the surface of the semicircular jack is provided with a fastener, and a high-temperature-resistant insulating washer is arranged between the semicircular cold end and the fastener; the semicircle cold ends are respectively provided with a lug plate, and the lug plate is provided with a wiring bolt.
Has the advantages that: compared with the traditional rod body structure, the double-spiral-tube heat exchanger has the advantages that the double-spiral-tube structure is adopted, the heat exchange area is increased, the transmission of internal and external heat is enhanced, the heat transfer efficiency is high, and the energy-saving effect is achieved. Meanwhile, the cross section of the heating spiral pipe is semicircular, so that the heat can be efficiently, quickly and uniformly radiated to the surrounding environment, and the heating spiral pipe has the advantage of high heating temperature; in addition, a connecting piece reinforcing rod structure is additionally arranged, so that the strength of the double-spiral pipe is improved, and the service life is prolonged.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the connector of the present invention.
The specific implementation method comprises the following steps: the present invention will be described in detail with reference to the following embodiments.
As shown in fig. 1: a high temperature resistant silicon carbide electric heating element is a cylindrical rod body 1 and comprises a heating double spiral tube 2 with the coaxial middle part, a conductive connector 3 at the upper end part and a semicircular cold end 4 connected with a power conductor at the lower end part; the cross section of the heating double-spiral tube 2 is semicircular; the upper end part conductive connector 3 and the cylindrical rod body 1 are of an integral structure; the semicircular cold ends 4 at the lower end part have the same radial size as the heating double-spiral tube 2, and the two heating parts and the semicircular cold ends 4 of the heating double-spiral tube 2 are mutually separated and independent; the semicircular cold end 4 is provided with a high-temperature resistant T-shaped connecting piece 5
The T-shaped connecting piece 5 is provided with a left semicircular jack 6 and a right semicircular jack 6 which are correspondingly matched with the lower semicircular cold ends 4 of the heating double spiral pipes 2; the lower semicircular cold ends 4 of the heating double-spiral tube 2 are respectively inserted into the left semicircular insertion holes 6 and the right semicircular insertion holes 6 of the T-shaped connecting piece 5; the middle part of the semicircular jack 6 is provided with a hexagonal cylindrical reinforcing rod 7; the length of the hexagonal cylindrical reinforcing rod 7 is matched with that of the heating double-spiral tube 2, and the hexagonal cylindrical reinforcing rod 7 is in hollow fit with the interior of the conductive connecting body 3; the surface of the semicircular jack 6 is provided with a fastener 8, and a high-temperature-resistant insulating washer 9 is arranged between the semicircular cold end 4 and the fastener 8; the semicircular cold ends 4 are respectively provided with a wiring lug 10, and the wiring lug 10 is provided with a wiring bolt 11.
The present invention provides a thought and a method, and a method and a way for implementing the technical scheme are many, the above is only a preferred embodiment of the present invention, it should be noted that, for a person skilled in the art, a plurality of improvements and modifications can be made without departing from the principle of the present invention, and the improvements and modifications should be regarded as the protection scope of the present invention, and each component not explicitly described in the embodiment can be implemented by the prior art.
Claims (2)
1. The high-temperature-resistant silicon carbide electric heating element is characterized by being a cylindrical rod body (1) and comprising a heating double-spiral tube (2) with the coaxial middle part, a conductive connector (3) at the upper end part and a semicircular cold end (4) connected with an electric conductor at the lower end part; the cross section of the heating double-spiral tube (2) is semicircular; the upper end part conductive connector (3) and the cylindrical rod body (1) are of an integral structure; the semicircular cold ends (4) at the lower end part have the same radial size with the heating double-spiral tube (2), and the two heating parts and the semicircular cold ends (4) of the heating double-spiral tube (2) are mutually separated and independent; and the semicircular cold end (4) is provided with a high-temperature-resistant T-shaped connecting piece (5).
2. The high-temperature-resistant silicon carbide electric heating element as claimed in claim 1, wherein the T-shaped connecting piece (5) is provided with a left semicircular insertion hole and a right semicircular insertion hole (6) which are correspondingly matched with the lower semicircular cold ends (4) of the heating double spiral pipes (2); the lower semicircular cold ends (4) of the heating double-spiral tube (2) are respectively inserted into the left semicircular insertion holes (6) and the right semicircular insertion holes (6) of the T-shaped connecting piece (5); a hexagonal cylindrical reinforcing rod (7) is arranged in the middle of the semicircular insertion hole (6); the length of the hexagonal cylindrical reinforcing rod (7) is matched with that of the heating double-spiral tube (2), and the hexagonal cylindrical reinforcing rod (7) is in hollow fit with the interior of the conductive connecting body (3); a fastening piece (8) is arranged on the surface of the semicircular insertion hole (6), and a high-temperature-resistant insulating washer (9) is arranged between the semicircular cold end (4) and the fastening piece (8); and the semicircular cold ends (4) are respectively provided with a lug plate (10), and the lug plate (10) is provided with a wiring bolt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608254.7U CN216017191U (en) | 2021-03-25 | 2021-03-25 | High-temperature-resistant silicon carbide electric heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608254.7U CN216017191U (en) | 2021-03-25 | 2021-03-25 | High-temperature-resistant silicon carbide electric heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216017191U true CN216017191U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120608254.7U Active CN216017191U (en) | 2021-03-25 | 2021-03-25 | High-temperature-resistant silicon carbide electric heating element |
Country Status (1)
| Country | Link |
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| CN (1) | CN216017191U (en) |
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2021
- 2021-03-25 CN CN202120608254.7U patent/CN216017191U/en active Active
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