CN201795874U - Thermoelectric couple for vacuum high-temperature measurement and control - Google Patents
Thermoelectric couple for vacuum high-temperature measurement and control Download PDFInfo
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- CN201795874U CN201795874U CN2010205023558U CN201020502355U CN201795874U CN 201795874 U CN201795874 U CN 201795874U CN 2010205023558 U CN2010205023558 U CN 2010205023558U CN 201020502355 U CN201020502355 U CN 201020502355U CN 201795874 U CN201795874 U CN 201795874U
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- temperature
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- thermopair
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- thermoelectric couple
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Abstract
The utility model belongs to an industrial thermoelectric couple, and particularly relates to a thermoelectric couple for vacuum high-temperature measurement and control of the industries such as chemical industry, metallurgy and the like, comprising a thermoelectric couple, a high-temperature protecting pipe (1), an armored sealing connecting piece (3) and a plugging piece (4), wherein the thermoelectric couple and the plugging piece (4) are fixedly connected to form a thermoelectric couple component; the high-temperature protecting pipe (1) and the armored sealing connecting piece (3) are fixedly bonded; the thermoelectric couple component is cured and sealed in the high-temperature protecting pipe (1) and the armored sealing connecting piece (3) between which a transitional protecting pipe (2) is also arranged; and the transitional protecting pipe (2) is respectively and fixedly bonded with the high-temperature protecting pipe (1) and the armored sealing connecting piece (3). The thermoelectric couple has the advantages of less influence by environmental factors, low use cost, convenient installation, less maintenance workload and accurate temperature measurement under the high-temperature radiation environment.
Description
Technical field
The utility model belongs to the industrial heat galvanic couple, relates in particular to a kind of vacuum high-temperature observing and controlling thermopair that is used for industries such as chemical industry, metallurgy.
Background technology
Heat treatment industry is used for the thermometric sensor of the equipment of industrial product at present, and low-temperature zone adopts platinum resistance, K type thermopair, and middle-temperature section adopts S type thermopair, and high temperature section adopts infrared thermometer and Wolfram rhenium heat electric couple more.
Platinum resistance thermometer sensor, is to utilize the resistance value of platinum filament to change this ultimate principle design and making along with variation of temperature, and with regard to structure, platinum resistance thermometer sensor, can also be divided into industrial platinum resistance thermometer sensor, and armoured Pt thermal resistance.The industry platinum resistance thermometer sensor, also is the assembling platinum resistance thermometer sensor,, promptly is the platinum resistance thermometer sensor, temperature-sensing element is burn-on in the metal tube or ceramic pipe that lead wire set dress at one end seals, and installs terminal box again and forms; Armoured Pt thermal resistance is with the platinum resistance thermometer sensor, element, transition lead-in wire, and insulating powder is assembled in the stainless-steel tube and draws real integral body through mould again, has solidly, and antidetonation can be around, advantage such as the line footpath is little, and is easy to install and use.
K type thermopair is as a kind of temperature sensor, its usually and Displaying Meter, the supporting use of recorder and electronic controller.K type thermopair can directly be measured the surface temperature of liquid vapour and the gas medium and the solid of 0 ℃～1300 ℃ of scopes in the various productions.
S type thermopair has accuracy in thermopair series the highest, and stability is best, thermometric wide temperature region, advantages such as long service life.Its physics, chemical property is good, and thermoelectrical potential is stable and at high temperature antioxygenic property is good, is applicable in oxidisability and the inert atmosphere.The weak point of S type thermopair is a thermoelectrical potential, and the thermoelectrical potential rate is less, and sensitivity is read low, and physical strength descends under the high temperature, and is very responsive to polluting, the precious metal material costliness, thereby one-time investment is bigger.
The characteristics of Wolfram rhenium heat electric couple are: thermoelectric polar filament fusing point height (3300 ℃), and steam forces down, very easily oxidation; Chemical stability is good in non-oxidizing atmosphere, and electromotive force is big, and is highly sensitive, low price.Because the high-temperature vacuum energy consumption of equipment is big, heater element and insulation material adopt graphite matter more, though Wolfram rhenium heat electric couple cheaply exists problems such as weak point in serviceable life.Though the wider range that infrared thermometer is measured, the cost costliness is installed the error that loaded down with trivial details and easy influence because of radiation environment causes the actual measurement parameter.
The utility model content
The utility model is intended to overcome the deficiencies in the prior art part and provides a kind of simple in structure, and such environmental effects is little, and use cost is low, and is easy for installation, and maintenance workload is little, temperature survey vacuum high-temperature observing and controlling accurately thermopair under the hyperthermia radiation environment.
For achieving the above object, the utility model is achieved in that
A kind of vacuum high-temperature observing and controlling thermopair, it comprises thermopair, high temperature protection pipe, armouring seal connector and plug connector; Described thermopair and the plug connector formation thermocouple assembly that is fixedly connected; Described high temperature protection pipe and armouring seal connector fixed bonding; Described thermocouple assembly curing is sealed in high temperature protection pipe and the armouring seal connector.
As a kind of preferred version, the utility model also is provided with the over current protection pipe between high temperature protection pipe and armouring seal connector; Described over current protection pipe respectively with high temperature protection pipe and armouring seal connector fixed bonding.
As another kind of preferred version, the utility model is provided with compensating wire at described plug connector internal fixation.
Further, can be furnished with the aluminium oxide bisque between thermocouple assembly described in the utility model and high temperature protection pipe and over current protection pipe.
Further, can be furnished with resin-sealed layer between thermocouple assembly described in the utility model and armouring seal connector.
In addition, thermocouple assembly described in the utility model is furnished with the W-Re thermo wires.
Secondly, compensating wire described in the utility model can adopt the thermometric compensating wire.
The utility model is to the important improvement of high temperature observing and controlling with thermopair, also is the once expansion of pyrometer couple in the vacuum heat application.The utility model such environmental effects is little, easy for installation, maintenance workload is little, temperature survey is accurate under the hyperthermia radiation environment, it not only can be used for measurement and control of temperature in high-temperature vacuum equipment, and avoided infrared thermometer because of the observed temperature error that radiation environment causes, greatly reduce cost simultaneously.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.Protection domain of the present utility model not only is confined to the statement of following content.
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Among the figure: 1 is the high temperature protection pipe; 2 is the over current protection pipe; 3 is the armouring seal connector; 4 is plug connector; 5 is compensating wire; 6 is the aluminium oxide bisque.
Embodiment
Referring to shown in Figure 1, vacuum high-temperature observing and controlling thermopair, it comprises thermopair, high temperature protection pipe 1, armouring seal connector 3 and plug connector 4; Described thermopair and the plug connector 4 formation thermocouple assembly that is fixedly connected; Described high temperature protection pipe 1 and armouring seal connector 3 fixed bondings; Described thermocouple assembly curing is sealed in high temperature protection pipe 1 and the armouring seal connector 3.
The utility model also is provided with over current protection pipe 2 between high temperature protection pipe 1 and armouring seal connector 3; Described over current protection pipe 2 respectively with high temperature protection pipe 1 and armouring seal connector 3 fixed bondings.Protective casing should be able to guarantee that thermode and hazardous medium fully isolate.
If transmission range is long, in order to save thermocouple material, reduce cost, the utility model can be fixed with compensating wire 5 in described plug connector 4.Compensating wire 5 extends to the cold junction (free end) of thermopair in the more stable pulpit of temperature, is connected on the instrument terminals.Must be pointed out that the effect of compensation lead of thermocouple only plays the extension thermode, the cold junction of thermopair is moved on the instrument terminals of pulpit, itself can not be eliminated the influence of cold junction temperature variation to thermometric, not redeeming.Compensating wire 5 and thermopair be free-ended be connected convenient and reliable.
2 of thermocouple assembly described in the utility model and high temperature protection pipe 1 and over current protection pipes are furnished with aluminium oxide bisque 6.
3 of thermocouple assembly described in the utility model and armouring seal connectors are furnished with resin-sealed layer; Described thermocouple assembly is furnished with the W-Re thermo wires; Described compensating wire 5 adopts the thermometric compensating wire.
The utility model basic structure form comprises high temperature protection pipe 1, over current protection pipe 2, armouring seal connector 3, plug connector 4 and compensating wire 5.Thermopair curing is sealed in high temperature protection pipe 1, over current protection pipe 2 and armouring seal connector 3 inside.High temperature protection pipe 1, over current protection pipe 2 and armouring seal connector 3 adopt the aluminium dihydrogen phosphate adhering method to make it into as a whole.High temperature protection pipe 1 adopts high-temperature insulation new material boron nitride to make.Over current protection pipe 2 is made by high temperature resistant new material silit or boron nitride.Armouring seal connector 3 adopts heat-resistance stainless steel (1Crl8Ni9Ti) to make, and any surface finish can realize vacuum seal, can realize adjustment fixing and temperature measurement location by screw top.Thermopair and plug connector 4 are as adopting alumina powder to fill between integral structure and high temperature protection pipe 1 and the over current protection pipe 2.Adopt the new type resin cast between thermocouple assembly and the armouring seal connector 3, form resin-sealed layer, Gu and can realize vacuum seal, plug connector adopts aviation plug or import to connection-peg.The thermo wires of the utility model thermopair and plug connector 4 thereof adopts the W-Re material.
The utility model can improve thermometric authenticity under the hyperthermia radiation environment, gets rid of the influence of environmental factor (as atmosphere), and reduces use cost, and easy for installation, maintenance workload is little, can be widely used in industries such as chemical industry, metallurgy.
Be with being appreciated that, more than about specific descriptions of the present utility model, only be used to the utility model is described and be not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (7)
1. a vacuum high-temperature observing and controlling thermopair is characterized in that, comprises thermopair, high temperature protection pipe (1), armouring seal connector (3) and plug connector (4); Described thermopair and plug connector (4) the formation thermocouple assembly that is fixedly connected; Described high temperature protection pipe (1) and armouring seal connector (3) fixed bonding; Described thermocouple assembly curing is sealed in high temperature protection pipe (1) and the armouring seal connector (3).
2. vacuum high-temperature observing and controlling thermopair according to claim 1 is characterized in that: also be provided with over current protection pipe (2) between high temperature protection pipe (1) and armouring seal connector (3); Described over current protection pipe (2) respectively with high temperature protection pipe (1) and armouring seal connector (3) fixed bonding.
3. vacuum high-temperature observing and controlling thermopair according to claim 2 is characterized in that: be provided with compensating wire (5) at described plug connector (4) internal fixation.
4. vacuum high-temperature observing and controlling thermopair according to claim 3 is characterized in that: be furnished with aluminium oxide bisque (6) between described thermocouple assembly and high temperature protection pipe (1) and over current protection pipe (2).
5. vacuum high-temperature observing and controlling thermopair according to claim 4 is characterized in that: be furnished with resin-sealed layer between described thermocouple assembly and armouring seal connector (3).
6. according to the arbitrary described vacuum high-temperature observing and controlling thermopair of claim 1～5, it is characterized in that: described thermocouple assembly is furnished with the W-Re thermo wires.
7. vacuum high-temperature observing and controlling thermopair according to claim 3 is characterized in that: described compensating wire (5) adopts the thermometric compensating wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205023558U CN201795874U (en) | 2010-08-24 | 2010-08-24 | Thermoelectric couple for vacuum high-temperature measurement and control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205023558U CN201795874U (en) | 2010-08-24 | 2010-08-24 | Thermoelectric couple for vacuum high-temperature measurement and control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795874U true CN201795874U (en) | 2011-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205023558U Expired - Fee Related CN201795874U (en) | 2010-08-24 | 2010-08-24 | Thermoelectric couple for vacuum high-temperature measurement and control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795874U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868614A (en) * | 2012-12-17 | 2014-06-18 | 核动力运行研究所 | Thermoelectric couple structure under high-temperature and high-pressure conditions |
| CN106352995A (en) * | 2016-09-12 | 2017-01-25 | 厦门奥冶炉相科技有限公司 | Thermocouple-based temperature measurement device |
| WO2017124780A1 (en) * | 2016-01-18 | 2017-07-27 | 西安交通大学 | Tungsten-rhenium thin-film thermocouple sensor containing high-temperature protective thin-film set and fabrication method therefor |
| CN107665743A (en) * | 2017-10-20 | 2018-02-06 | 中国核动力研究设计院 | Thermometer and its temperature measurement system for integral reactor temperature survey |
| CN110767330A (en) * | 2018-07-27 | 2020-02-07 | 核工业西南物理研究院 | Double-layer vacuum-sealed thermocouple cable penetrating piece |
| FR3096134A1 (en) * | 2019-05-16 | 2020-11-20 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | High temperature measuring device suitable for a corrosive metallic and oxide environment in the liquid state |
-
2010
- 2010-08-24 CN CN2010205023558U patent/CN201795874U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868614A (en) * | 2012-12-17 | 2014-06-18 | 核动力运行研究所 | Thermoelectric couple structure under high-temperature and high-pressure conditions |
| CN103868614B (en) * | 2012-12-17 | 2017-02-22 | 核动力运行研究所 | Thermoelectric couple structure under high-temperature and high-pressure conditions |
| WO2017124780A1 (en) * | 2016-01-18 | 2017-07-27 | 西安交通大学 | Tungsten-rhenium thin-film thermocouple sensor containing high-temperature protective thin-film set and fabrication method therefor |
| CN106352995A (en) * | 2016-09-12 | 2017-01-25 | 厦门奥冶炉相科技有限公司 | Thermocouple-based temperature measurement device |
| CN107665743A (en) * | 2017-10-20 | 2018-02-06 | 中国核动力研究设计院 | Thermometer and its temperature measurement system for integral reactor temperature survey |
| CN107665743B (en) * | 2017-10-20 | 2023-11-24 | 中国核动力研究设计院 | Thermometer for measuring temperature of integrated reactor and temperature measuring system thereof |
| CN110767330A (en) * | 2018-07-27 | 2020-02-07 | 核工业西南物理研究院 | Double-layer vacuum-sealed thermocouple cable penetrating piece |
| CN110767330B (en) * | 2018-07-27 | 2024-06-11 | 核工业西南物理研究院 | Double-layer vacuum-sealed thermocouple cable penetrating piece |
| FR3096134A1 (en) * | 2019-05-16 | 2020-11-20 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | High temperature measuring device suitable for a corrosive metallic and oxide environment in the liquid state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20130824 |