CN202836809U - Thermocouple protection tube - Google Patents
Thermocouple protection tube Download PDFInfo
- Publication number
- CN202836809U CN202836809U CN 201220492051 CN201220492051U CN202836809U CN 202836809 U CN202836809 U CN 202836809U CN 201220492051 CN201220492051 CN 201220492051 CN 201220492051 U CN201220492051 U CN 201220492051U CN 202836809 U CN202836809 U CN 202836809U
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- layer
- protection
- protection tube
- material filling
- thermocouple
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- Expired - Fee Related
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Abstract
The utility model discloses a thermocouple protection tube. The thermocouple protection tube comprises an outer protection layer and an inner protection layer; a material filling layer is arranged between the outer protection layer and the inner protection layer; a sealing layer is arranged at the top end of the material filling layer; and a heat insulation layer is arranged between the material filling layer and the sealing layer. The thermocouple protection tube has the beneficial effects that as the thermocouple protection tube is designed as two layers, and a high temperature-resisting powder material is filled between the inner layer and the outer layer, and solid glue is used for sealing, a dual-protection function can be provided, and even if the outer layer of the protection tube is damaged, air leakage of the device does not happen, and dual-guarantee can be provided for safe operation of the device; and in addition, as the heat insulation layer is arranged between the material filling layer and the sealing layer, even if the material filling layer is excessively high in temperature, stability of the solid glue sealing layer can be ensured, the protection effect is enhanced, the service life of the thermocouple protection tube is improved and the manufacturing cost is saved.
Description
Technical field
The utility model relates to a kind of protecting tube, is applicable to the thermometric operation technique field under the conditions of high temperature such as metallurgy, machinery, thermal treatment.
Background technology
Thermopair is temperature element commonly used in the temperature measuring instrument, is linked together by two different metals silks, and the different principle of electromotive force of utilizing different metal to produce is made.Thermopair is the precise temperature measurement instrument, and in the serviceable life of the meeting shortening heat galvanic couple of at high temperature working for a long time, in order to prevent from damaging thermopair, can there be protecting tube general thermopair outside by cover, and the material of protecting tube is generally aluminium oxide or corundum etc.Be in high pressure or low-pressure state during some equipment operation, will make the equipment internal pressure unstable if protecting tube damages gas leakage, equipment and product are impacted.
Protecting tube is easily damaged, needs often to change, and belongs to easily-consumed products; and price; the quality of protecting tube also is directly connected to the measuring accuracy of thermopair simultaneously, even protecting tube has small damage also must change, this has just caused unnecessary waste.Protecting tube is used in high pressure or low-voltage equipment is outer, easily gas leakage after it is damaged, and do not have thermofin, excess Temperature can affect the effect of protecting tube end seal layer.
The utility model content
Technical problem to be solved in the utility model provides a kind of protecting tube that can play double protection.
For solving the problems of the technologies described above; technical solution adopted in the utility model is: a kind of protecting tube; comprise external protection and inner protective layer, between external protection and inner protective layer, be provided with the filler layer, be provided with sealant on the top of described filler layer.
Between described filler layer and sealant, be provided with thermofin.
Described external protection and inner protective layer are alumina material, and the filler layer is the silicon carbide powder layer, and sealant is the solid glue-line.
Described thermofin is asbestos layer.
Above-mentioned solid gum can be AB glue.
The beneficial effect that adopts technique scheme to produce is: by protecting tube is made as bilayer, and between ectonexine, fill resistant to elevated temperatures dusty material and seal with solid gum, can play double protection, damage even protection tube is outer, can not cause equipment gas leakage, the safe operation of double shield equipment yet; In addition, between filler layer and sealant thermofin is set, even filler layer excess Temperature also can guarantee the stability of solid gum sealant, the more protection effect in the serviceable life of improving protecting tube, is saved manufacturing cost.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is structure cut-open view of the present utility model;
Wherein, 1, external protection, 2, inner protective layer, 3, the filler layer, 4, thermofin, 5, sealant.
Embodiment
Embodiment as shown in Figure 1 as can be known, protecting tube described in the utility model comprises external protection 1 and inner protective layer 2, is provided with filler layer 3 between external protection 1 and inner protective layer 2, is provided with sealant 5 on the top of described filler layer 3; Between described filler layer 3 and sealant 5, be provided with thermofin 4; Described external protection 1 and inner protective layer 2 are alumina material, and filler layer 3 is the silicon carbide powder layer, and sealant 5 is the solid glue-line; Described thermofin 4 is asbestos layer.
By protecting tube is made as bilayer; and between ectonexine, fill resistant to elevated temperatures dusty material and with the solid gum sealing, can play double protection, damage even protection tube is outer; can not cause equipment gas leakage, the safe operation of double shield equipment yet.
In addition, between filler layer and sealant thermofin is set, even filler layer excess Temperature also can guarantee the stability of solid gum sealant, the more protection effect in the serviceable life of improving protecting tube, is saved manufacturing cost.
Claims (4)
1. protecting tube; it is characterized in that; comprise external protection (1) and inner protective layer (2), between external protection (1) and inner protective layer (2), be provided with filler layer (3), be provided with sealant (5) on the top of described filler layer (3).
2. protecting tube according to claim 1 is characterized in that, is provided with thermofin (4) between described filler layer (3) and sealant (5).
3. protecting tube according to claim 1 and 2 is characterized in that, described external protection (1) and inner protective layer (2) are alumina material, and filler layer (3) is the silicon carbide powder layer, and sealant (5) is the solid glue-line.
4. protecting tube according to claim 2 is characterized in that, described thermofin (4) is asbestos layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492051 CN202836809U (en) | 2012-09-25 | 2012-09-25 | Thermocouple protection tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220492051 CN202836809U (en) | 2012-09-25 | 2012-09-25 | Thermocouple protection tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202836809U true CN202836809U (en) | 2013-03-27 |
Family
ID=47948492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220492051 Expired - Fee Related CN202836809U (en) | 2012-09-25 | 2012-09-25 | Thermocouple protection tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202836809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916529A (en) * | 2019-02-26 | 2019-06-21 | 重庆材料研究院有限公司 | Platinum resistive element and preparation process for nuclear leve proof armored platinum resistor |
-
2012
- 2012-09-25 CN CN 201220492051 patent/CN202836809U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916529A (en) * | 2019-02-26 | 2019-06-21 | 重庆材料研究院有限公司 | Platinum resistive element and preparation process for nuclear leve proof armored platinum resistor |
| CN109916529B (en) * | 2019-02-26 | 2021-08-31 | 重庆材料研究院有限公司 | Platinum resistor element for nuclear-grade armored platinum resistor and preparation process |
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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: 20130327 Termination date: 20150925 |
|
| EXPY | Termination of patent right or utility model |