CN206042407U - Double -deck insulation system's single -ended electric heating element - Google Patents
Double -deck insulation system's single -ended electric heating element Download PDFInfo
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- CN206042407U CN206042407U CN201621038853.5U CN201621038853U CN206042407U CN 206042407 U CN206042407 U CN 206042407U CN 201621038853 U CN201621038853 U CN 201621038853U CN 206042407 U CN206042407 U CN 206042407U
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- cold
- sandwich layer
- electrothermal tube
- outer tube
- double
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Abstract
The utility model relates to a double -deck insulation system's single -ended electric heating element, including the electrothermal tube outer tube, the electrothermal tube outer tube has generate heat district and cold junction, characterized by: have two -layer insulating material filling layer in the inner chamber of electrothermal tube outer tube, be packing the interior sandwich layer of high -temperature oxidation powdered magnesium respectively and pack the powder of the boron nitride between the inside pipe wall outside interior sandwich layer and electrothermal tube, generate heat the district interior sandwich layer in set up the heating wire, set up cold needle in the interior sandwich layer of cold junction. The one end of cold needle is connected with the heating wire, and the other end of cold needle stretches out the tip of cold junction. Double -deck insulation system's single -ended electric heating element can be when carrying high pressure heater thermal element power density, application temperature, insulation level and dielectric strength greatly, effective reduce cost.
Description
Technical field
This utility model is related to a kind of single-ended electrical heating elements of double-layer insulating structure, especially it is a kind of using boron nitride and
The single-ended electrical heating elements of magnesium oxide bilayer combination structure.
Background technology
Existing electrical heating elements typically adopt magnesium oxide or boron nitride as insulant.
About 1000 DEG C of the maximum operation (service) temperature of magnesia powder, at this temperature, its insulating properties drastically declines, and limits
The power of the maximum operation (service) temperature of electrical heating elements and internal resistance.Up to 2000 DEG C of the maximum operation (service) temperature of boron nitride, leads
Hot coefficient is high, its insulating properties, temperature resistant grade, heat conductivity far better than magnesium oxide, using boron nitride as insulant after,
Heater element power density can be greatly improved, using temperature, the class of insulation and dielectric strength.But, boron nitride is expensive,
The promoting the use of as electrical heating elements using boron nitride is had a strong impact on.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of double-layer insulating structure it is single-ended
Electrical heating elements, can greatly improving heater element power density, using temperature, the class of insulation and dielectric strength while,
Effective reduces cost.
According to the technical scheme that this utility model is provided, the single-ended electrical heating elements of the double-layer insulating structure, including electricity
Heat pipe outer tube, electrothermal tube outer tube have hot zone and cold end；It is characterized in that：There is in the inner chamber of the electrothermal tube outer tube two-layer
Insulant packed layer, the respectively inner sandwich layer of filled high-temperature magnesia powder and be filled in inner sandwich layer and electrothermal tube outer tube wall it
Between boron nitride powder；Heating wire is set in the inner sandwich layer of the hot zone, cold pin is set in the inner sandwich layer of cold end.
Further, one end of the cold pin is connected with heating wire, and the other end of cold pin stretches out the end of cold end.
The single-ended electrical heating elements of double-layer insulating structure described in the utility model, can greatly improve heater element power
Density, using temperature, the class of insulation and dielectric strength while, effective reduces cost.
Description of the drawings
Fig. 1 is the structural representation of the single-ended electrical heating elements of double-layer insulating structure described in the utility model.
Specific embodiment
With reference to concrete accompanying drawing, the utility model is described in further detail.
As shown in Figure 1：The single-ended electrical heating elements of the double-layer insulating structure include electrothermal tube outer tube 1, heating wire 2, height
Warm magnesia powder 3, boron nitride powder 4, cold pin 5, hot zone A, cold end B etc..
As shown in figure 1, the single-ended electrical heating elements of double-layer insulating structure described in the utility model, including electrothermal tube outer tube 1,
Electrothermal tube outer tube 1 has hot zone A and cold end B；Fill with two layers of insulation material in the inner chamber of the electrothermal tube outer tube 1
Layer, the respectively inner sandwich layer of filled high-temperature magnesia powder 3 and the boron nitride being filled between 1 inwall of inner sandwich layer and electrothermal tube outer tube
Powder 4；Heating wire 2 is set in the inner sandwich layer of the hot zone A, cold pin 5 is set in the inner sandwich layer of cold end B（That is conducting rod）,
One end of cold pin 5 is connected with heating wire 2, and the other end of cold pin 5 stretches out the end of cold end B.
Using magnesium oxide as inner core inside heating wire of the present utility model, which is as just liner, it is not necessary to good height
Insulating properties and dielectric strength, high heat conductivility under temperature.Fill out between heating wire and magnesium oxide inner core and electrothermal tube outer tube
Boron nitride is filled, its excellent high-temperature insulation and heat conductivility is given full play to.So, electrical heating elements described in the utility model are existing
Using boron nitride as insulant excellent properties, can substantially reduce again using using boron nitride as insulant into
This.
Claims (2)
1. single-ended electrical heating elements of a kind of double-layer insulating structure, including electrothermal tube outer tube（1）, electrothermal tube outer tube（1）With send out
Hot-zone（A）And cold end（B）；It is characterized in that：In the electrothermal tube outer tube（1）Inner chamber in have two layers of insulation material packed layer,
Respectively filled high-temperature magnesia powder（3）Inner sandwich layer and be filled in inner sandwich layer and electrothermal tube outer tube（1）Nitridation between inwall
Boron powder（4）；In the hot zone（A）Inner sandwich layer in heating wire is set（2）, in cold end（B）Inner sandwich layer in cold pin is set
（5）.
2. the single-ended electrical heating elements of double-layer insulating structure as claimed in claim 1, is characterized in that：The cold pin（5）One
End and heating wire（2）Connection, cold pin（5）The other end stretch out cold end（B）End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038853.5U CN206042407U (en) | 2016-09-05 | 2016-09-05 | Double -deck insulation system's single -ended electric heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038853.5U CN206042407U (en) | 2016-09-05 | 2016-09-05 | Double -deck insulation system's single -ended electric heating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206042407U true CN206042407U (en) | 2017-03-22 |
Family
ID=58298507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621038853.5U Active CN206042407U (en) | 2016-09-05 | 2016-09-05 | Double -deck insulation system's single -ended electric heating element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206042407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231706A (en) * | 2016-09-05 | 2016-12-14 | 无锡富而凯奥克电气有限公司 | The single-ended electrical heating elements of double-layer insulating structure |
-
2016
- 2016-09-05 CN CN201621038853.5U patent/CN206042407U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106231706A (en) * | 2016-09-05 | 2016-12-14 | 无锡富而凯奥克电气有限公司 | The single-ended electrical heating elements of double-layer insulating structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |