CN2786581Y - Thermocouple with outside arranged gas resource protector - Google Patents
Thermocouple with outside arranged gas resource protector Download PDFInfo
- Publication number
- CN2786581Y CN2786581Y CN200520011479.5U CN200520011479U CN2786581Y CN 2786581 Y CN2786581 Y CN 2786581Y CN 200520011479 U CN200520011479 U CN 200520011479U CN 2786581 Y CN2786581 Y CN 2786581Y
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- gas
- sleeve pipe
- thermopair
- airtight
- airtight sleeve
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Abstract
The utility model discloses a thermocouple with an external protective gas resource, which comprises a thermocouple and a protective gas resource, wherein the thermocouple is provided with a protective airtight sleeve; the protective gas resource is connected with closed space in the airtight sleeve by a pipe. The utility model can carry out supplement and pressure maintenance in time for protective gas in the airtight sleeve when the protective gas in the thermocouple is leaked after the utility model is provided with the external protective gas resource with high purity. Thus the utility model can avoid the damage to the thermocouple because of the leakage of the protective gas. Accordingly, the measured temperature can be raised greatly, and the service life can be prolonged. Therefore, the long-term measured temperature of the thermocouple can reach over 2000 DEG C under the oxidizing atmosphere or other atmospheres.
Description
Technical field
The utility model relates to a kind of thermopair, and particularly W-Re is a thermopair.
Background technology
The high noble metal of rare valency is used in a large number in the thermometric field, and is that expendable is used basically, and the noble-metal thermocouple temperature-measuring range is also limited in addition, works in＜1800 ℃ at present.And have a lot of performances all to be better than its Wolfram rhenium heat electric couple, because the tungsten-rhenium alloy shortcoming of oxidation does not very easily make it replace noble-metal thermocouple fully for many years both at home and abroad as yet.
It is a big problem that tungsten-rhenium alloy replaces noble metal, also very important, through making great efforts for many years, makes Wolfram rhenium heat electric couple silk surface coating, changes thermocouple material, increases density, fills blanket gas in the sleeve pipe and vacuumizes or add measure such as oxygen absorbent, plays a role.But be difficult to improve significantly, especially thermometric in the superhigh temperature oxidizing atmosphere, it is impossible that oxygen does not enter thermocouple sheath at all, and this a little oxygen is fatal to the Wolfram rhenium heat electric couple silk, thereby retrained the development and application of Wolfram rhenium heat electric couple, from prior meaning is to have limited tungsten-rhenium alloy than the application (especially under oxidizing atmosphere) of noble metal in the more superior performance in thermometric field, promptly can measure the more possibility of high temperature (3000 ℃), in addition, also comprise its good linearity, the generation electromotive force is strong, the temperature measurement accuracy height, the application of serial advantages such as the measuring system cost is low.From another angle, thermometric (as oxidizing atmosphere) from scientific research to some superhigh temperature field of production can not predict with other way, or under other test way situation that can't accurately predict, can only be in the state of commenting the experience estimation temperature, influence taking of True Data, limited the progress of scientific research and production.
The utility model content
Problem at above-mentioned existence; the purpose of this utility model is to provide a kind of thermopair with peripheral hardware protection source of the gas; guarantee that the thermopair internal atmosphere is an anaerobic state; measure temperature and serviceable life thereby increase substantially, make thermopair long-term temperature of measuring under oxidizing atmosphere or other atmosphere can reach more than 2000 ℃.
For achieving the above object, a kind of thermopair with peripheral hardware protection source of the gas of the utility model comprises: thermopair, protection source of the gas, and described thermopair has the airtight sleeve pipe of protection, and described protection source of the gas is connected with enclosure space in the described airtight sleeve pipe by pipeline.
Further, also comprise thermometric silk, insulation pillar and gas operated device in the airtight sleeve pipe of described thermopair, the thermometric silk is arranged in the sleeve pipe by the insulation pillar.
Further, described protection source of the gas output pipe is provided with pressure regulator valve.
Further, also be provided with the delivery outlet of a band valve on the pipeline between described pressure regulator valve and the described airtight sleeve pipe.
Further, described airtight sleeve pipe is provided with perforate, and the pipeline of described protection source of the gas detachably is tightly connected by erection joint and described perforate.
Further, the airtight jointing that is fixed with of tapping that is provided with on the described airtight sleeve pipe.
Further, described jointing is fixed on set tapping on the described airtight sleeve pipe by a collar is airtight, and wherein the jointing and the collar are airtight fixing, and the collar and airtight sleeve pipe are airtight to be fixed.
Further, described thermopair is provided with described erection joint bracing or strutting arrangement, described erection joint and this bracing or strutting arrangement relative fixed; Wherein, described bracing or strutting arrangement is a stainless steel reinforcing sleeve, and this stainless steel reinforcing sleeve is fixed on the described airtight sleeve pipe, and has threaded hole in the position of opening corresponding section with described airtight sleeve pipe, and described erection joint is installed in the described threaded hole by screw thread.
Further, the perforate on the described airtight sleeve pipe is a taper hole, and correspondingly, described erection joint end has the conical surface that is complementary with this taper hole, and erection joint is pressed against on the described taper hole by the conical surface with its end and is tightly connected with described airtight sleeve pipe.
Further, described pipeline is a wireway, and this wireway is installed in described airtight sleeve pipe cold junction by encapsulant, and described thermometric silk and wireway are drawn from the sealing material.
The utility model is by after being provided with an external high-purity protection source of the gas; when leaking appears in the blanket gas in the thermopair; can the blanket gas in managing in time be replenished and pressurize; therefore avoided leaking destruction to thermopair caused because of blanket gas; measure temperature and serviceable life thereby increase substantially, make thermopair long-term temperature of measuring under oxidizing atmosphere or other atmosphere can reach more than 2000 ℃.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is the utility model embodiment 2 structural representations.
Fig. 3 is the utility model embodiment 3 jointings and thimble structure synoptic diagram.
Fig. 4 is Fig. 3 right view.
Embodiment:
Embodiment 1
As shown in Figure 1, the utility model comprises: thermometric silk 3, protection with airtight sleeve pipe 1, insulation pillar 2, protect source of the gas, stainless steel reinforcing sleeve 4, erection joint 6; Airtight sleeve pipe 1 is provided with perforate, and this perforate is a taper hole, and stainless steel reinforcing sleeve 4 is fixed on the airtight sleeve pipe 1, and has threaded hole in the position of opening corresponding section with airtight sleeve pipe 1, and erection joint 6 is installed in the threaded hole by screw thread.Thermometric silk 3 is arranged in the airtight sleeve pipe 1 by insulation pillar 2; the pipeline 7 of protection source of the gas detachably is tightly connected by erection joint 6 and perforate; and be connected with enclosure space in the airtight sleeve pipe 1; erection joint 6 ends have the conical surface that is complementary with taper hole, and erection joint 6 is pressed against on the taper hole by the conical surface with its end and is tightly connected with airtight sleeve pipe 1.Be disposed with pressure regulator valve 8, switch valve 12 and blanket gas storage tank 9 on the protection source of the gas output pipe 7; pressure regulator valve 8 and switch valve 12 also are respectively arranged with tensimeter 13,14; pipeline between pressure regulator valve 8 and the airtight sleeve pipe 1 is provided with a delivery outlet that vacuumizes with valve 10; promptly will vacuumize in the idol, and close then to vacuumize and use valve 10 with evacuating equipment.
The utility model adopts fire resistive material high temperature resistant, high-compactness to make the airtight sleeve pipe 1 of thermopair; adopt the material that still insulate under the high temperature resistant state preferably to do thermo wires insulation pillar 2; do the thermocouple temperature measurement silk with tungsten rhenium alloy wire; seal with encapsulant 5 the assembling back; outer wall at nearly non-thermometric end (cold junction) thermopair has tapered through hole then, and aperture closely is connected with outer protection gas inflated pressure-retaining system.There is one to vacuumize processing procedure before the inflation, promptly will vacuumizes in the idol, close then to vacuumize and use valve 10 with evacuating equipment.Gas charging system pressure regulator valve 8 opened in airtight sleeve pipe 1, charge into high pure protective gas (this moment should remove vaccum-pumping equipment); make airtight sleeve pipe 1 internal pressure＞airtight sleeve pipe 1 external pressure; when even the blanket gas in the airtight sleeve pipe 1 oozes effusion along airtight sleeve pipe 1 wall appearance is little; also can obtain replenishing timely; the outside any gas of thermopair airtight sleeve pipe 1 difficult to get access impacts thermo wires under the pressurize effect.In case being inflated pressure-retaining system, thermopair connects; then this system promptly is in normal the connection with the thermopair inner chamber; promptly normal inflation; normal packing state; because inflation source adopts miniature blanket gas storage tank 9; the very tiny conduit of pipeline 7 usefulness; can lay with compensation lead of thermocouple; storage tank 9 can be installed in the power distribution cabinet, tensimeter 13; 14 are provided with above the fold, can just observe; pressure regulator valve 8 should conveniently be adjusted; when finding that storage tank 9 internal pressure table 14 numerical value are lower than thermopair outside atmosphere pressures, can in time change storage tank 9, guarantee the purity and the pressure of the interior blanket gas of thermopair.
Such one by filling the complete thermal galvanic couple that blanket gas and pressure-retaining system are formed, make the Wolfram rhenium heat electric couple silk not contact harmful atmosphere and become a reality.
As shown in Figure 2, the utility model gas operated device is a wireway 15, and wireway 15 is installed in airtight sleeve pipe 1 cold junction by encapsulant, and thermometric silk 3 and wireway 15 are drawn from the sealing material, the pipeline 7 of wireway 15 external protection sources of the gas.All the other structures are with embodiment 1.
Embodiment 3
As shown in Figure 3; the airtight jointing 17 that is fixed with of tapping that is provided with on the airtight sleeve pipe 1 of the utility model; jointing 17 is fixed on set tapping on the airtight sleeve pipe 1 by a collar 16 is airtight; wherein jointing 17 is airtight fixing with the collar 16; the collar 17 and airtight sleeve pipe 1 are airtight fixing, the pipeline 7 of jointing 17 external protection sources of the gas.All the other structures are with embodiment 1.
Claims (10)
1. the thermopair with peripheral hardware protection source of the gas is characterized in that, comprising: thermopair, protection source of the gas, and described thermopair has the airtight sleeve pipe of protection, and described protection source of the gas is connected with enclosure space in the described airtight sleeve pipe by pipeline.
2. the thermopair of band peripheral hardware protection source of the gas as claimed in claim 1 is characterized in that, also comprises thermometric silk, insulation pillar and gas operated device in the airtight sleeve pipe of described thermopair, and the thermometric silk is arranged in the sleeve pipe by the insulation pillar.
3. the thermopair of band peripheral hardware protection source of the gas as claimed in claim 2 is characterized in that described protection source of the gas output pipe is provided with pressure regulator valve.
4. the thermopair of band peripheral hardware protection source of the gas as claimed in claim 3 is characterized in that, also is provided with the delivery outlet of a band valve on the pipeline between described pressure regulator valve and the described airtight sleeve pipe.
5. the thermopair of band peripheral hardware protection source of the gas as claimed in claim 4 is characterized in that described airtight sleeve pipe is provided with perforate, and the pipeline of described protection source of the gas detachably is tightly connected by erection joint and described perforate.
6. the thermopair of band peripheral hardware protection source of the gas as claimed in claim 5 is characterized in that the airtight jointing that is fixed with of the tapping that is provided with on the described airtight sleeve pipe.
7. the thermopair of band peripheral hardware protection source of the gas as claimed in claim 6; it is characterized in that; described jointing is fixed on set tapping on the described airtight sleeve pipe by a collar is airtight, and wherein the jointing and the collar are airtight fixing, and the collar and airtight sleeve pipe are airtight to be fixed.
8. as the thermopair of claim 5,6,7 arbitrary described band peripheral hardware protection sources of the gas, it is characterized in that described thermopair is provided with described erection joint bracing or strutting arrangement, described erection joint and this bracing or strutting arrangement relative fixed; Wherein, described bracing or strutting arrangement is a stainless steel reinforcing sleeve, and this stainless steel reinforcing sleeve is fixed on the described airtight sleeve pipe, and has threaded hole in the position of opening corresponding section with described airtight sleeve pipe, and described erection joint is installed in the described threaded hole by screw thread.
9. the thermopair of band peripheral hardware protection source of the gas as claimed in claim 8; it is characterized in that; perforate on the described airtight sleeve pipe is a taper hole; correspondingly; described erection joint end has the conical surface that is complementary with this taper hole, and erection joint is pressed against on the described taper hole by the conical surface with its end and is tightly connected with described airtight sleeve pipe.
10. the thermopair of band peripheral hardware protection source of the gas as claimed in claim 4 is characterized in that described pipeline is a wireway, and this wireway is installed in described airtight sleeve pipe cold junction by encapsulant, and described thermometric silk and wireway are drawn from the sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520011479.5U CN2786581Y (en) | 2005-04-05 | 2005-04-05 | Thermocouple with outside arranged gas resource protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520011479.5U CN2786581Y (en) | 2005-04-05 | 2005-04-05 | Thermocouple with outside arranged gas resource protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2786581Y true CN2786581Y (en) | 2006-06-07 |
Family
ID=36775156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200520011479.5U Expired - Fee Related CN2786581Y (en) | 2005-04-05 | 2005-04-05 | Thermocouple with outside arranged gas resource protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2786581Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703967A (en) * | 2012-06-05 | 2012-10-03 | 湖南红太阳光电科技有限公司 | Thermocouple device for polycrystal ingot furnace |
| CN102980675A (en) * | 2012-11-28 | 2013-03-20 | 安徽埃克森科技集团有限公司 | Suction thermocouple |
| CN102998019A (en) * | 2012-11-28 | 2013-03-27 | 安徽埃克森科技集团有限公司 | Mixed gas suction type thermocouple |
| CN110411599A (en) * | 2019-08-07 | 2019-11-05 | 中国核动力研究设计院 | Reusable contact liquid internal temperature measuring device and measurement method |
-
2005
- 2005-04-05 CN CN200520011479.5U patent/CN2786581Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703967A (en) * | 2012-06-05 | 2012-10-03 | 湖南红太阳光电科技有限公司 | Thermocouple device for polycrystal ingot furnace |
| CN102980675A (en) * | 2012-11-28 | 2013-03-20 | 安徽埃克森科技集团有限公司 | Suction thermocouple |
| CN102998019A (en) * | 2012-11-28 | 2013-03-27 | 安徽埃克森科技集团有限公司 | Mixed gas suction type thermocouple |
| CN110411599A (en) * | 2019-08-07 | 2019-11-05 | 中国核动力研究设计院 | Reusable contact liquid internal temperature measuring device and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |