CN202255669U - Thermocouple sensor capable of measuring temperature and liquid level at the same time - Google Patents
Thermocouple sensor capable of measuring temperature and liquid level at the same time Download PDFInfo
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- CN202255669U CN202255669U CN2011203710593U CN201120371059U CN202255669U CN 202255669 U CN202255669 U CN 202255669U CN 2011203710593 U CN2011203710593 U CN 2011203710593U CN 201120371059 U CN201120371059 U CN 201120371059U CN 202255669 U CN202255669 U CN 202255669U
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- galvanic couple
- heat hot
- thermocouple
- hot galvanic
- heat
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Abstract
A thermocouple sensor capable of measuring temperature and liquid level at the same time comprises an armoured bushing, a heating thermocouple, a heating wire, a thermal insulation layer, a non-heating thermocouple, an insulating material and a connector; wherein the heating thermocouple, the heating wire, the thermal insulation layer, the non-heating thermocouple, and the insulating material are arranged inside the armoured bushing; a junction of the heating thermocouple is arranged at a middle position of the heating wire, a junction of the non-heating thermocouple is arranged at a top of the armoured bushing; the heating thermocouple and the non-heating thermocouple form a differential thermocouple; and the heating wire is isolated from the non-heating thermocouple through the thermal insulation layer therebetween. The thermocouple sensor of the utility model has the advantages of simple and reliable structure, small size, and various functions.
Description
Technical field
The utility model relates to a kind of thermocouple sensor.
Background technology
At present; Temperature or liquid level sensor that the occasion of the pressure vessel of pressurized-water reactor nuclear power plant and the high temperature of fuel-burning power plant, high-pressure boiler or this type of liquid storage tank high reliability request is used; Be that one-parameter is measured mostly; I.e. sensor independent measurement temperature or liquid level; The occasion of these high reliability request, the reliability of its temperature and level gauging are directly connected to the safety and the personal safety of production equipment, so measure temperature and the integrated transducer of liquid level in the pressure resistant vessel (or liquid storage tank) when pressing for a kind of high reliability.
Summary of the invention
The utility model technical matters to be solved be provide for the above-mentioned deficiency that overcomes prior art a kind of simple and reliable for structure, volume is little and function is measured the thermocouple sensor of temperature, liquid level many time, it can use the occasion in nuclear field and other high reliability request.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of thermocouple sensor of measuring temperature, liquid level simultaneously; It is characterized in that: comprise armouring sleeve pipe, heat hot galvanic couple, heater strip, heat insulation layer, non-heat hot galvanic couple, insulating material and connector; Heat hot galvanic couple, heater strip, heat insulation layer, non-heat hot galvanic couple, insulating material are arranged in the armouring sleeve pipe; The node of heat hot galvanic couple is positioned at the centre position of heater strip; The node of heat hot galvanic couple is not positioned at the top of armouring sleeve pipe, and the heat hot galvanic couple constitutes the difference thermocouple with heat hot galvanic couple not, is isolated by heat insulation layer between heater strip and non-heat hot galvanic couple.
Above-mentioned armouring cannula tip is a undergauge, and the armouring sleeve pipe of undergauge can reduce to measure the response time of temperature effectively.
Above-mentioned armouring sleeve pipe internal insulation stops the heat of heater strip to be transmitted to not heat hot galvanic couple place, guarantees not add the influence that temperature that thermopair measures does not receive the heat that heater strip sends.
Above-mentioned heat hot galvanic couple and heat hot galvanic couple not constitute the difference thermocouple and are used for measuring liquid level, and the heat hot thermopair is not used for the temperature of thermometric medium.
Above-mentioned heat hot galvanic couple, heater strip and the position of non-heat hot galvanic couple in the armouring sleeve pipe can exchange.
Compared with prior art, the advantage of the utility model is: through two thermopairs are set in an armouring sleeve pipe, can realize measuring two kinds of functions of temperature and liquid level, so it is simple and reliable for structure, volume is little and function is many.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A part enlarged diagram of Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Like Fig. 1, shown in 2, a kind of thermocouple sensor of measuring temperature, liquid level simultaneously comprises armouring sleeve pipe 1, heat hot galvanic couple 2, heater strip 3, heat insulation layer 4, not heat hot galvanic couple 5, insulating material 6 and connector 7.
The node of above-mentioned heat hot galvanic couple 2 is positioned at the centre position of heater strip 3, and the node of heat hot galvanic couple 5 is not positioned at the top of armouring sleeve pipe 1.
Armouring sleeve pipe internal insulation 4 is at heater strip 3 and not between the heat hot galvanic couple 5, and heat insulation layer 4 stops the heat of heater strips to be transmitted to not heat hot galvanic couple 5 places, guarantees not add the influence that temperature that thermopair measures does not receive the heat that heater strip sends.
Heat hot galvanic couple 2 constitutes the difference thermocouples with heat hot galvanic couple 5 not, is used for measuring liquid level.
The not heat hot thermopair 5 that is positioned at the top is used for the temperature of thermometric medium.
The top undergauge of above-mentioned armouring sleeve pipe 1, the armouring sleeve pipe of top undergauge can reduce to measure the response time of temperature effectively.
The external diameter of armouring sleeve pipe 1 is 4.2mm in the present embodiment, and internal diameter is 3.2mm, and an end undergauge is 2.28mm; Material is the 316L stainless steel.The material of heat hot galvanic couple 2 is NiCr-NiAL; The material of heater strip 3 is Ni80Cr20, and length is 25mm; The material of heat insulation layer 4 is SiO2; The material of heat hot galvanic couple 5 is not NiCr-NiAL, and two thermocouple junction are at a distance of 50mm; Insulating material 6 is highly purified MgO, and the length overall of sensor is 15000mm.
Claims (4)
1. thermocouple sensor of measuring temperature, liquid level simultaneously; It is characterized in that: comprise armouring sleeve pipe, heat hot galvanic couple, heater strip, heat insulation layer, non-heat hot galvanic couple, insulating material and connector; Heat hot galvanic couple, heater strip, heat insulation layer, non-heat hot galvanic couple, insulating material are arranged in the armouring sleeve pipe; The node of heat hot galvanic couple is positioned at the centre position of heater strip; The node of heat hot galvanic couple is not positioned at the top of armouring sleeve pipe, and the heat hot galvanic couple constitutes the difference thermocouple with heat hot galvanic couple not, is isolated by heat insulation layer between heater strip and non-heat hot galvanic couple.
2. the thermocouple sensor of measuring temperature, liquid level simultaneously according to claim 1 is characterized in that: said armouring cannula tip is a undergauge.
3. thermocouple sensor of measuring temperature, liquid level simultaneously; It is characterized in that: comprise armouring sleeve pipe, heat hot galvanic couple, heater strip, heat insulation layer, non-heat hot galvanic couple, insulating material and connector; Heat hot galvanic couple, heater strip, heat insulation layer, non-heat hot galvanic couple, insulating material are arranged in the armouring sleeve pipe; The node of heat hot galvanic couple is positioned at the centre position of heater strip, and the node of heat hot galvanic couple is positioned at the top of armouring sleeve pipe, and the node of heat hot galvanic couple is not positioned at armouring sleeve pipe middle part; The heat hot galvanic couple constitutes the difference thermocouple with heat hot galvanic couple not, is isolated by heat insulation layer between heater strip and non-heat hot galvanic couple.
4. the thermocouple sensor of measuring temperature, liquid level simultaneously according to claim 3 is characterized in that: said armouring cannula tip is a undergauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203710593U CN202255669U (en) | 2011-10-08 | 2011-10-08 | Thermocouple sensor capable of measuring temperature and liquid level at the same time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203710593U CN202255669U (en) | 2011-10-08 | 2011-10-08 | Thermocouple sensor capable of measuring temperature and liquid level at the same time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255669U true CN202255669U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203710593U Expired - Fee Related CN202255669U (en) | 2011-10-08 | 2011-10-08 | Thermocouple sensor capable of measuring temperature and liquid level at the same time |
Country Status (1)
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| CN (1) | CN202255669U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630236A (en) * | 2013-12-11 | 2014-03-12 | 中国工程物理研究院应用电子学研究所 | Conical cavity type high-energy laser total-absorption energy meter |
| CN104344868A (en) * | 2013-08-09 | 2015-02-11 | 浙江无限新能源股份有限公司 | Stepless water level and temperature integrated sensor |
| CN106500798A (en) * | 2016-12-16 | 2017-03-15 | 宁波奥崎自动化仪表设备有限公司 | A kind of section heating type multipoint thermocouple level sensor by heat-conducting block heat conduction |
| CN106768159A (en) * | 2017-02-27 | 2017-05-31 | 宁波奥崎自动化仪表设备有限公司 | A kind of nuclear power station reactor core level sensor |
| CN107110713A (en) * | 2014-11-19 | 2017-08-29 | 法雷奥电机控制系统公司 | Temperature sensor |
-
2011
- 2011-10-08 CN CN2011203710593U patent/CN202255669U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344868A (en) * | 2013-08-09 | 2015-02-11 | 浙江无限新能源股份有限公司 | Stepless water level and temperature integrated sensor |
| CN103630236A (en) * | 2013-12-11 | 2014-03-12 | 中国工程物理研究院应用电子学研究所 | Conical cavity type high-energy laser total-absorption energy meter |
| CN103630236B (en) * | 2013-12-11 | 2015-12-02 | 中国工程物理研究院应用电子学研究所 | A kind of conical cavity type high-energy laser total-absorption energy meter |
| CN107110713A (en) * | 2014-11-19 | 2017-08-29 | 法雷奥电机控制系统公司 | Temperature sensor |
| CN106500798A (en) * | 2016-12-16 | 2017-03-15 | 宁波奥崎自动化仪表设备有限公司 | A kind of section heating type multipoint thermocouple level sensor by heat-conducting block heat conduction |
| CN106500798B (en) * | 2016-12-16 | 2024-01-05 | 宁波奥崎自动化仪表设备有限公司 | Sectional heating type multi-point thermocouple liquid level detector conducting heat through heat conducting block |
| CN106768159A (en) * | 2017-02-27 | 2017-05-31 | 宁波奥崎自动化仪表设备有限公司 | A kind of nuclear power station reactor core level sensor |
| CN106768159B (en) * | 2017-02-27 | 2023-11-21 | 宁波奥崎自动化仪表设备有限公司 | A nuclear power plant reactor core liquid level detector |
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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: 20120530 Termination date: 20141008 |
|
| EXPY | Termination of patent right or utility model |