CN203632892U - Frame-type electrical heating element - Google Patents
Frame-type electrical heating element Download PDFInfo
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- CN203632892U CN203632892U CN201320785054.4U CN201320785054U CN203632892U CN 203632892 U CN203632892 U CN 203632892U CN 201320785054 U CN201320785054 U CN 201320785054U CN 203632892 U CN203632892 U CN 203632892U
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Abstract
The utility model belongs to the technical field of electric heating, particularly to a frame-type electrical heating element. The electrical heating element comprises heatproof insulating end frames and alloy heating wires. Each of the alloy heating wires penetrates through at least two insulating rings. The insulating rings are fixed onto connecting rods via steel wires. The connecting rods are fixed between the two heatproof insulating end frames. The two ends of each of the alloy heating wires are fixedly connected with electrode ends respectively. The advantages of the frame-type electrical heating element are that (1) the manufacture technology is simple, the connection is reliable, and the service life is long; (2) the grade, length, and other processing conditions of the alloy heating wires can be changed based on needs of actual heating surfaces and heating power; and (3) the employed insulating rings enhances the firmness, safety, and reliability performances of the alloy heating wires under high temperature.
Description
Technical field
The utility model relates to a kind of electric heating element, and particularly a kind of frame-type electric heating element, belongs to electric-heating technology field.
Background technology
Electrothermal alloy is widely used in the electrical heating elements in the fields such as machinery, metallurgy, chemical industry, food, and working temperature is at 500 ~ 1 400 ℃.Electrothermal alloy can be divided into Ni-Cr based austenite alloy and Fe-Cr-Al Alfer by its metallurgical structure.Ni-Cr alloy plasticity and good toughness, resistivity is high, and under high temperature, intensity is high, the life-span is long, there is better anti-nitrogen ability, can be used for the heating of nitrogen containing atmosphere environment, in heating accuracy and in requiring high environment useful life application more extensive, as Cr20Ni80, Cr30Ni70.
Fe-Cr-Al alloy is the most widely used metal electric heating element material of China, and proportion is little, and resistance coefficient is little, and serviceability temperature is higher, and heat resistance is better.Conventional Fe-Cr-Al alloy material has 0Cr25Al5,0Cr21Al6 and 0Cr27Al7Mo2 etc.
Utility model content
The purpose of this utility model is to provide a kind of quick heating, the life-span is long, heating is even, connect electric heating element reliable, with low cost.
A kind of frame-type electric heating element, it is characterized in that: comprise high temperature insulation end frame and heating alloy, heating alloy is through at least two insulation annulus, described insulation annulus by fixation with steel wire on connecting rod, described connecting rod is fixed between two high temperature insulation end frames, and described heating alloy two ends are fixedly connected with electrode tip respectively.
Heating alloy described in the utility model is helical form.
Insulation annulus described in the utility model is ceramic annulus or quartzy annulus.
Insulation annulus described in the utility model surface is fluted.
Heating alloy described in the utility model is chrome-nickel heating wire or Aludirome heating wire.
Preferably, the chrome-nickel heating wire that the utility model adopts is Cr20Ni80, and its wire diameter is 0.04～7.00mm.
Preferably, the Cr-Al alloy heating wire that the utility model adopts is 0Cr27Al7Mo2, and its wire diameter is 0.07～7.00mm.
The utility model has the advantage of: 1, manufacture craft is simple, connect reliably long service life; 2, can change according to the needs of actual heating surface and heating power the processing conditions such as the trade mark, length of heating alloy; 3, the insulation annulus adopting has been strengthened at high temperature fastness and the safety and reliability of heating alloy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of frame-type electric heating element of the utility model, comprise high temperature insulation end frame 2 and heating alloy 1, heating alloy 1 is through at least two insulation annulus 3, described insulation annulus 3 is fixed on connecting rod by rib 4, described connecting rod 5 is fixed between high temperature insulation end frame 2, and described heating alloy 1 two ends are fixedly connected with electrode tip 6 respectively.
Heating alloy 1 described in the utility model is chrome-nickel heating wire or Aludirome heating wire, and heating alloy 1 is helical form, and the circle footpath of this spiral surrounding is 0.6～1.8cm.
The utility model can, according to the processing conditions such as the trade mark, length that need to carry out choose reasonable heating alloy of actual heating power, adopt chrome-nickel heating wire, and the trade mark is Cr20Ni80, and wire diameter is 0.04～7.00mm, and element maximum operation (service) temperature is 1200 ℃.Adopt Aludirome heating wire, the trade mark is 0Cr27Al7Mo2, and wire diameter is 0.07～7.00mm, and element maximum operation (service) temperature is 1400 ℃.
Although the utility model is disclosed by above embodiment; but scope of the present utility model is not limited to this; do not departing under the condition of the utility model design, any apparent change that it is done all will fall into the protection range of claim of the present utility model.
Claims (9)
1. a frame-type electric heating element, it is characterized in that: comprise high temperature insulation end frame (2) and heating alloy (1), heating alloy (1) is through at least two insulation annulus (3), described insulation annulus (3) is fixed on connecting rod by steel wire (4), described connecting rod (5) is fixed between high temperature insulation end frame (2), and described heating alloy (1) two ends are fixedly connected with electrode tip (6) respectively.
2. frame-type electric heating element according to claim 1, is characterized in that: described heating alloy (1) is helical form.
3. frame-type electric heating element according to claim 1, is characterized in that: described insulation annulus (3) is ceramic annulus or quartzy annulus.
4. according to the frame-type electric heating element described in claim 1 or 3, it is characterized in that: described insulation annulus (3) surface is fluted.
5. frame-type electric heating element according to claim 1 and 2, is characterized in that: described heating alloy (1) is chrome-nickel heating wire or Aludirome heating wire.
6. electric heating element according to claim 5, is characterized in that: described heating alloy (1) is Cr20Ni80.
7. frame-type electric heating element according to claim 6, is characterized in that: the wire diameter of described heating alloy (1) is 0.04～7.00mm.
8. electric heating element according to claim 5, is characterized in that: described heating alloy (1) is 0Cr27Al7Mo2.
9. electric heating element according to claim 8, is characterized in that: the wire diameter of described heating alloy (1) is 0.07～7.00mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320785054.4U CN203632892U (en) | 2013-12-04 | 2013-12-04 | Frame-type electrical heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320785054.4U CN203632892U (en) | 2013-12-04 | 2013-12-04 | Frame-type electrical heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632892U true CN203632892U (en) | 2014-06-04 |
Family
ID=50819327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320785054.4U Expired - Fee Related CN203632892U (en) | 2013-12-04 | 2013-12-04 | Frame-type electrical heating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257749A (en) * | 2016-12-29 | 2018-07-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | Steel wire resistance device of chip electro-arc heater starting circuit and preparation method thereof |
-
2013
- 2013-12-04 CN CN201320785054.4U patent/CN203632892U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108257749A (en) * | 2016-12-29 | 2018-07-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | Steel wire resistance device of chip electro-arc heater starting circuit and preparation method thereof |
| CN108257749B (en) * | 2016-12-29 | 2024-01-12 | 中国空气动力研究与发展中心超高速空气动力研究所 | Steel wire resistor device of starting circuit of chip arc heater and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20201204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |