CN103398798A - Thermocouple temperature measuring device for high-pressure environment - Google Patents
Thermocouple temperature measuring device for high-pressure environment Download PDFInfo
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- CN103398798A CN103398798A CN2013103748753A CN201310374875A CN103398798A CN 103398798 A CN103398798 A CN 103398798A CN 2013103748753 A CN2013103748753 A CN 2013103748753A CN 201310374875 A CN201310374875 A CN 201310374875A CN 103398798 A CN103398798 A CN 103398798A
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- thermocouple
- temperature measuring
- thermopair
- sealed insulation
- temperature
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Abstract
The invention discloses a thermocouple temperature measuring device for a high-pressure environment. The thermocouple temperature measuring device comprises a thermocouple (1) and a measuring meter, wherein a measuring part of the thermocouple (1) is arranged above a sealed insulating cone plug (2); leads arranged at the two ends of the thermocouple (1) are arranged in a wiring duct in the side surface of the sealed insulating cone plug (2); a sealed insulating cone sleeve (3) is arranged outside the sealed insulating cone plug (2); an insulating cone pad (4) is arranged under the sealed insulating cone plug (2); a through hole is arranged in the middle of the insulating cone pad (4); leads arranged at the two ends of the thermocouple (1) are led out through the through hole formed in the middle of the insulating cone pad (4). The thermocouple for directly measuring the temperature of a high-temperature and high-pressure non-conductive fluid is not provided with a metal shell, so that the device is rapider in thermal response and higher in accuracy compared with the prior art during measurement; furthermore, a tapered self-tightening sealing technology is adopted, so that the thermocouple temperature measuring device is good in sealing effect and can be used under the conditions with higher temperature and pressure.
Description
Technical field
The present invention relates to a kind of thermocouple temperature measuring apparatus for hyperbaric environment, belong to the temperature measuring equipment field.
Background technology
Temperature is one of key factor of controlling chemical reaction, and the Measurement accuracy of autoclave inner fluid temperature and accurate control are studied most important for high temperature and pressure experiment.Conventional temperature measuring equipment all adopts the armoured thermocouple with the metal coating sleeve pipe; this device can meet most requirement of experiment; but for manufacturing technique requirent reactor temperature in petrochemical industry, measure response fast; and for calorimetric or the differential thermal analysis (DTA) of the chemical reaction that is attended by remarkable thermal effect; existing temperature thermocouple is due to the metal coating sleeve pipe; thermal response time is slow and measuring accuracy is low, does not reach the requirement of technique and experiment.For this reason, need development to be applicable to the device of the measurement fluid temperature (F.T.) that under high-temperature and high-pressure conditions, thermal response is fast, precision is high.In petrochemical industry and the synthetic field of solvent heat, the fluid in reactor is generally non-aqueous organic solvent, belongs to non-conductive fluid, and this temperature of directly measuring the reactor inner fluid for development bareing thermocouple temperature measuring apparatus provides very big facility.
Summary of the invention
The technical problem to be solved in the present invention: a kind of thermocouple temperature measuring apparatus for hyperbaric environment is provided, to solve prior art, measures that thermal response time that the high temperature and high pressure flow temperature exists is slow and to measure temperature accuracy low, do not reach the problems such as technique and testing requirements.
Technical solution of the present invention:
A kind of thermocouple temperature measuring apparatus for hyperbaric environment, it comprises thermopair and measurement instrument, it is characterized in that: thermocouple measurement partly is positioned at sealed insulation tapered plug top, thermopair two ends lead-in wire is arranged in sealed insulation tapered plug side wire casing, sealed insulation tapered plug outside is the sealed insulation tapered sleeve, sealed insulation tapered plug below is insulation cone pad, in the middle of insulation cone pad, through hole is arranged, and thermopair two ends lead-in wire is drawn from insulation cone pad intermediate throughholes.
On the exposed lead-in wire in described thermopair two ends, the insulating ceramics pipe is arranged.
Described thermopair is the platinum rhodium-platinum thermocouple silk.
The pad of described thermopair is exposed to sealed insulation tapered plug top.
Described sealed insulation tapered sleeve is arranged in the taper hole of pedestal.
Described pedestal is the titanium material.
The material of described sealed insulation tapered plug, sealed insulation tapered sleeve and insulation cone pad is mica or pyrophyllite or boron nitride.
Beneficial effect of the present invention:
Compared with prior art, the platinum rhodium-platinum thermocouple pad that the present invention be used for to measure temperature directly is exposed to non-conductive fluid, there is no metal shell, can directly measure fluid temperature (F.T.), and is faster than prior art thermal response during measurement, precision is higher; The present invention simultaneously adopts taper self-energized seal technology, sealed insulation tapered sleeve and tapered plug can sealing effectiveness be better along with the increase of institute's measured reaction still internal pressure, makes it can effectively be applicable to the direct measurement of the non-conductive fluid temperature (F.T.) under normal temperature ~ 500 ℃ and normal pressure ~ 100 MPa conditions; The thermocouple temperature measuring apparatus that has solved prior art temperature survey thermal response time when measuring autoclave inner fluid temperature is slow and to measure temperature accuracy low, does not reach the problems such as technique and testing requirements.
Description of drawings:
Fig. 1 is structural representation of the present invention.
Embodiment:
A kind of thermocouple temperature measuring apparatus for hyperbaric environment, it comprises thermopair 1 and measurement instrument, thermopair 1 measure portion is positioned at sealed insulation tapered plug 2 tops, thermopair 1 two ends lead-in wire is arranged in sealed insulation tapered plug 2 side wire casings, sealed insulation tapered plug 2 outsides are sealed insulation tapered sleeve 3, sealed insulation tapered plug 2 belows are insulation cone pad 4, in the middle of insulation cone pad 4, through hole are arranged, and thermopair 1 two ends lead-in wire is drawn from insulation cone pad 4 intermediate throughholes.
On the thermopair 1 exposed lead-in wire in two ends, insulating ceramics pipe 6 is arranged, play the effect of insulation protection.
Thermopair 1 forms for the platinum rhodium-platinum thermocouple wire bond connects, pad 7 is exposed to sealed insulation tapered plug 2 tops, in order to measure more accurately temperature, the while is because the thermopair employing is platinum Pt Rh silk, can make the corrosion resistance of thermopair 1 better, extend serviceable life and the reliability of thermopair 1.
The sealed insulation tapered sleeve 3 of sealed insulation tapered plug 2 outsides is arranged in the taper hole of pedestal 5, and pedestal 5 adopts titanium material processing and fabricating, and high temperature resistance high pressure corrosive nature is good, and pedestal 5 can be still plug or the still wall of autoclave.
The material of sealed insulation tapered plug 2, sealed insulation tapered sleeve 3 and insulation cone pad 4 is mica or pyrophyllite or boron nitride making, and its heat-insulating property is also very good.
the assembling of thermopair 1 in pedestal 5 taper holes, first thermopair 1 is snapped in the wire casing of sealed insulation tapered plug 2 sides, the sealed insulation tapered plug 2 that successively centre is had the insulation cone pad 4 of through hole again and thermopair 1 is housed is packed in sealed insulation tapered sleeve 3, then sealed insulation tapered sleeve 3 integral body are packed in the taper hole of pedestal 5, by unit clamp, sealed insulation tapered sleeve 3 and sealed insulation tapered plug 2 are compressed, each sealed insulating material is deformed, thereby thermocouple wire is embedded in wherein, reach sealing effectiveness, and along with the increase of reacting kettle inner pressure, the power that acts on sealed insulating material is larger, due to the self-tightening sealing effect, the effect of sealing can be better.
Temperature measuring equipment of the present invention can be applicable to non-conductive fluid temperature (F.T.) under normal temperature ~ 500 ℃ and normal pressure ~ 100 MPa conditions fast, Measurement accuracy.
Claims (7)
1. thermocouple temperature measuring apparatus that is used for hyperbaric environment, it comprises thermopair (1) and measurement instrument, it is characterized in that: thermopair (1) measure portion is positioned at sealed insulation tapered plug (2) top, thermopair (1) two ends lead-in wire is arranged in sealed insulation tapered plug (2) side wire casing, sealed insulation tapered plug (2) outside is sealed insulation tapered sleeve (3), sealed insulation tapered plug (2) below is insulation cone pad (4), through hole is arranged in the middle of insulation cone pad (4), and thermopair (1) two ends lead-in wire is drawn from insulation cone pad (4) intermediate throughholes.
2. a kind of thermocouple temperature measuring apparatus for hyperbaric environment according to claim 1, is characterized in that: on the exposed lead-in wire in described thermopair (1) two ends, insulating ceramics pipe (6) is arranged.
3. a kind of thermocouple temperature measuring apparatus for hyperbaric environment according to claim 1, it is characterized in that: described thermopair (1) is the platinum rhodium-platinum thermocouple silk.
4. a kind of thermocouple temperature measuring apparatus for hyperbaric environment according to claim 1 is characterized in that: the pad (7) of described thermopair (1) is exposed to sealed insulation tapered plug (2) top.
5. a kind of thermocouple temperature measuring apparatus for hyperbaric environment according to claim 1, it is characterized in that: described sealed insulation tapered sleeve (3) is arranged in the taper hole of pedestal (5).
6. a kind of thermocouple temperature measuring apparatus for hyperbaric environment according to claim 6, it is characterized in that: described pedestal (5) is the titanium material.
7. a kind of thermocouple temperature measuring apparatus for hyperbaric environment according to claim 1 is characterized in that: the material of described sealed insulation tapered plug (2), sealed insulation tapered sleeve (3) and insulation cone pad (4) is mica or pyrophyllite or boron nitride.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310374875.3A CN103398798B (en) | 2013-08-26 | 2013-08-26 | A kind of thermocouple temperature measuring apparatus for hyperbaric environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310374875.3A CN103398798B (en) | 2013-08-26 | 2013-08-26 | A kind of thermocouple temperature measuring apparatus for hyperbaric environment |
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| CN103398798A true CN103398798A (en) | 2013-11-20 |
| CN103398798B CN103398798B (en) | 2015-09-30 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819891A (en) * | 2015-04-28 | 2015-08-05 | 中山大学 | Fiber Bragg grating leading wire outlet sealing apparatus of high-confining-pressure pressure chamber |
| CN104848953A (en) * | 2015-04-16 | 2015-08-19 | 派罗特克（深圳）高温材料有限公司 | Pipe plugging bulkhead thermocouple protective sleeve and processing method |
| CN107342443A (en) * | 2017-08-01 | 2017-11-10 | 中国科学技术大学 | It is a kind of to be used to monitor internal temperature and the device of pressure change during large-scale lithium ion battery thermal runaway occurrence and development |
| CN107976468A (en) * | 2017-11-22 | 2018-05-01 | 中国科学院地球化学研究所 | A kind of in-situ measurement device of fissure water rock conductivity |
| CN108020333A (en) * | 2017-11-27 | 2018-05-11 | 中国电子科技集团公司第四十八研究所 | A kind of temp probe and assembly method for aircraft |
| CN109916526A (en) * | 2019-03-11 | 2019-06-21 | 西北工业大学 | A kind of the back pin configuration and preparation method of the extraction of the ito thin film thermocouple electric signal on turbo blade |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996071A (en) * | 1973-06-12 | 1976-12-07 | Friedrich Vade Gmbh | Temperature measuring device for use at pressures in excess of 1,500 bar |
| CN86103609A (en) * | 1986-05-30 | 1988-02-17 | 国家地震局地球物理研究所 | One leading technique of multiple wires from hole of vessel at high pressure |
| CN2352940Y (en) * | 1998-08-12 | 1999-12-08 | 中国航空工业总公司川西机器厂 | High temp. and super high pressure thermocouple connecting means |
| CN101695865A (en) * | 2009-10-19 | 2010-04-21 | 杭州科强智能控制系统有限公司 | Melt temperature sensor with characteristic of quick response under conditions of high temperature and high pressure |
-
2013
- 2013-08-26 CN CN201310374875.3A patent/CN103398798B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3996071A (en) * | 1973-06-12 | 1976-12-07 | Friedrich Vade Gmbh | Temperature measuring device for use at pressures in excess of 1,500 bar |
| CN86103609A (en) * | 1986-05-30 | 1988-02-17 | 国家地震局地球物理研究所 | One leading technique of multiple wires from hole of vessel at high pressure |
| CN2352940Y (en) * | 1998-08-12 | 1999-12-08 | 中国航空工业总公司川西机器厂 | High temp. and super high pressure thermocouple connecting means |
| CN101695865A (en) * | 2009-10-19 | 2010-04-21 | 杭州科强智能控制系统有限公司 | Melt temperature sensor with characteristic of quick response under conditions of high temperature and high pressure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848953A (en) * | 2015-04-16 | 2015-08-19 | 派罗特克（深圳）高温材料有限公司 | Pipe plugging bulkhead thermocouple protective sleeve and processing method |
| CN104819891A (en) * | 2015-04-28 | 2015-08-05 | 中山大学 | Fiber Bragg grating leading wire outlet sealing apparatus of high-confining-pressure pressure chamber |
| CN107342443A (en) * | 2017-08-01 | 2017-11-10 | 中国科学技术大学 | It is a kind of to be used to monitor internal temperature and the device of pressure change during large-scale lithium ion battery thermal runaway occurrence and development |
| CN107976468A (en) * | 2017-11-22 | 2018-05-01 | 中国科学院地球化学研究所 | A kind of in-situ measurement device of fissure water rock conductivity |
| CN108020333A (en) * | 2017-11-27 | 2018-05-11 | 中国电子科技集团公司第四十八研究所 | A kind of temp probe and assembly method for aircraft |
| CN109916526A (en) * | 2019-03-11 | 2019-06-21 | 西北工业大学 | A kind of the back pin configuration and preparation method of the extraction of the ito thin film thermocouple electric signal on turbo blade |
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| Publication number | Publication date |
|---|---|
| CN103398798B (en) | 2015-09-30 |
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