WO2021237470A1 - Capteur de thermocouple à longue durée de vie - Google Patents

Capteur de thermocouple à longue durée de vie Download PDF

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Publication number
WO2021237470A1
WO2021237470A1 PCT/CN2020/092389 CN2020092389W WO2021237470A1 WO 2021237470 A1 WO2021237470 A1 WO 2021237470A1 CN 2020092389 W CN2020092389 W CN 2020092389W WO 2021237470 A1 WO2021237470 A1 WO 2021237470A1
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WO
WIPO (PCT)
Prior art keywords
layer
thermocouple sensor
thermocouple
service life
long service
Prior art date
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Ceased
Application number
PCT/CN2020/092389
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English (en)
Chinese (zh)
Inventor
王煜
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/CN2020/092389 priority Critical patent/WO2021237470A1/fr
Publication of WO2021237470A1 publication Critical patent/WO2021237470A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples

Definitions

  • the utility model relates to the technical field of thermocouple sensors, in particular to a thermocouple sensor with long service life.
  • thermocouple sensor is the most commonly used contact temperature measuring device in the industry. This is because the thermocouple has the characteristics of stable performance, large temperature measurement range and long-distance signal transmission, and the structure is simple and easy to use.
  • the existing thermocouple sensor There are shortcomings of corrosion resistance and poor insulation effect, which makes the thermocouple sensor easy to damage, thereby reducing the service life of the thermocouple sensor. For this reason, we propose a thermocouple sensor with a long service life.
  • thermocouple sensor with a long service life, which has the advantage of long service life, and solves the disadvantages of the existing thermocouple sensor with poor anti-corrosion and insulation effects, resulting in thermocouples.
  • the sensor is easily damaged, thereby reducing the service life of the thermocouple sensor.
  • thermocouple sensor with long service life comprising a junction box, the right side of the junction box is fixedly connected with a steel pipe, and the inner surface of the steel pipe is covered with a shielding layer , The inner surface of the shielding layer is covered with an insulating layer, the inner surface of the insulating layer is covered with thermocouple wires, the outer surface of the steel pipe is coated with an anti-corrosion layer, and the anti-corrosion layer is made of chlorosulfonated polyethylene Layer and silicon nitride coating.
  • the shielding layer is aluminum alloy powder, and the thickness of the shielding layer is 0.1-0.3 mm.
  • the insulating layer is composed of an insulating sleeve and a water-based polyester coating, and the insulating sleeve is coated on the outer surface of the thermocouple wire, and the water-based polyester coating is coated on the outer surface of the insulating sleeve.
  • thermocouple wire is a nickel-chromium alloy wire
  • a lead port for use with the thermocouple wire is opened at the bottom of the junction box.
  • the chlorosulfonated polyethylene layer is coated on the outer surface of the steel pipe, and the silicon nitride coating is coated on the outer surface of the chlorosulfonated polyethylene layer.
  • thermocouple sensor with long service life, which has the following beneficial effects:
  • the utility model is provided with a shielding layer, and the aluminum alloy powder has good electromagnetic shielding performance, so that the thermocouple sensor will not be electromagnetically interfered during operation.
  • the insulation sleeve and the water-based polyester coating are provided to achieve the insulation effect of the thermocouple sensor Good, to avoid the phenomenon that the thermocouple sensor is easy to conduct electricity when it is working.
  • the paint film is resistant to chalking, gloss and color. Good performance, bright color, and good durability.
  • silicon nitride coating silicon nitride has lubricity, wear resistance and toughness. It resists oxidation at high temperatures, does not react with most acids, and resists corrosion. It has strong performance and solves the shortcomings of the existing thermocouple sensors that the anti-corrosion and insulation effects are poor, which causes the thermocouple sensor to be easily damaged, thereby reducing the service life of the thermocouple sensor.
  • Figure 1 is a schematic diagram of the front view of the utility model
  • Figure 2 is a schematic partial sectional view of the structure of the utility model
  • Figure 3 is a schematic diagram of the cross-sectional structure of the anti-corrosion layer of the present invention.
  • junction box 1 the lead port 2, the steel pipe 3, the shielding layer 4, the insulating layer 5, the thermocouple wire 6, the anti-corrosion layer 7, the chlorosulfonated polyethylene layer 71 and the silicon nitride coating 72 components of the utility model are all universal
  • the structure and principle of standard parts or components known to those skilled in the art can be known by those skilled in the art through technical manuals or through conventional experimental methods.
  • thermocouple sensor with long service life including junction box 1, the right side of junction box 1 is fixedly connected with a steel pipe 3, the inner surface of the steel pipe 3 is covered with a shielding layer 4, the shielding layer 4 is Aluminum alloy powder, the thickness of the shielding layer 4 is 0.1-0.3mm.
  • the aluminum alloy powder has good electromagnetic shielding performance, so that the thermocouple sensor will not be subjected to electromagnetic interference during operation.
  • the insulating layer 5 is composed of an insulating sleeve and a water-based polyester coating, and the insulating sleeve is coated on the outer surface of the thermocouple wire 6, and the water-based polyester coating is coated on the insulating sleeve
  • insulation sleeves and water-based polyester coating are provided to make the thermocouple sensor have a good insulation effect, avoiding the phenomenon of electrical conduction when the thermocouple sensor is working.
  • thermocouple wire 6 is a nickel-chromium alloy wire
  • the bottom of the junction box 1 is provided with a lead port 2 used with the thermocouple wire 6
  • the outer surface of the steel pipe 3 is coated with an anti-corrosion layer 7, and the anti-corrosion layer 7 is chlorosulfonated
  • a polyethylene layer 71 and a silicon nitride coating 72 are composed.
  • the chlorosulfonated polyethylene layer 71 is coated on the outer surface of the steel pipe 3, and the silicon nitride coating 72 is coated on the outer surface of the chlorosulfonated polyethylene layer 71.
  • the chlorosulfonated polyethylene layer 71 is provided, which has excellent weather resistance, aging resistance and chemical atmospheric corrosion resistance, the paint film is resistant to pulverization, good gloss and color retention, bright color, and good durability.
  • silicon nitride Coating 72 silicon nitride has lubricity, wear resistance and toughness, anti-oxidation at high temperatures, does not chemically react with most acids, and has strong corrosion resistance.
  • the aluminum alloy powder has good electromagnetic shielding performance, so that the thermocouple sensor will not be subjected to electromagnetic interference during operation.
  • the thermocouple sensor is The insulation effect is good, which avoids the phenomenon of electrical conduction when the thermocouple sensor is working.
  • the chlorosulfonated polyethylene layer 71 it has excellent weather resistance, aging resistance and chemical atmospheric corrosion resistance, and the paint film is resistant to pulverization and protection. Good light retention, bright color, and good durability.
  • silicon nitride coating 72 silicon nitride has lubricity, wear resistance and toughness.
  • thermocouple sensor It is resistant to oxidation at high temperatures and does not react with most acids. Responsive and strong corrosion resistance, it solves the shortcomings of the existing thermocouple sensors with poor anti-corrosion and insulation effects, causing the thermocouple sensor to be easily damaged, thereby reducing the service life of the thermocouple sensor.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

L'invention concerne un capteur de thermocouple à longue durée de vie. Le capteur de thermocouple comprend une boîte de jonction (1), un tube en acier (3) étant relié à demeure au côté droit de la boîte de jonction (1), la surface interne du tube en acier (3) étant recouverte d'une couche de protection (4), la surface interne de la couche de protection (4) étant recouverte d'une couche isolante (5), la surface interne de la couche isolante (5) étant recouverte d'un fil de thermocouple (6), la surface extérieure du tube en acier (3) étant revêtue d'une couche anti-corrosion (7), et la couche anti-corrosion (7) étant composée d'une couche de polyéthylène chlorosulfoné (71) et d'une couche de revêtement en nitrure de silicium (72). La fourniture de la couche isolante (5) donne un bon effet d'isolation du capteur de thermocouple, et évite le phénomène selon lequel le capteur de thermocouple est susceptible de conduire l'électricité pendant le fonctionnement. La couche de polyéthylène chlorosulfoné (71) a une bonne résistance au vieillissement et une bonne résistance à la corrosion atmosphérique chimique, ainsi qu'une bonne durabilité. La couche de revêtement en nitrure de silicium (72) a les avantages d'un bon pouvoir lubrifiant, d'une résistance à l'usure et d'une forte ténacité, et ne réagit pas chimiquement avec la plupart des acides, et la fourniture de la couche de revêtement en nitrure de silicium (72) permet d'améliorer la résistance à la corrosion.
PCT/CN2020/092389 2020-05-26 2020-05-26 Capteur de thermocouple à longue durée de vie Ceased WO2021237470A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/092389 WO2021237470A1 (fr) 2020-05-26 2020-05-26 Capteur de thermocouple à longue durée de vie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/092389 WO2021237470A1 (fr) 2020-05-26 2020-05-26 Capteur de thermocouple à longue durée de vie

Publications (1)

Publication Number Publication Date
WO2021237470A1 true WO2021237470A1 (fr) 2021-12-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/092389 Ceased WO2021237470A1 (fr) 2020-05-26 2020-05-26 Capteur de thermocouple à longue durée de vie

Country Status (1)

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WO (1) WO2021237470A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887632A1 (fr) * 1997-06-24 1998-12-30 Isuzu Ceramics Research Institute Co., Ltd. Thermocouple avec manteau-protecteur en céramique pour mesurer la température d'un métal fondu
US6102565A (en) * 1996-07-12 2000-08-15 Isuzu Ceramics Research Institute Co., Ltd. Ceramic sheath type thermocouple
CN106644130A (zh) * 2015-10-30 2017-05-10 天津中电天仪科技有限公司 一种新型耐高温、耐腐蚀专用热电偶
CN207317957U (zh) * 2017-09-19 2018-05-04 重庆洋泰科技发展有限公司 水泥高温耐磨专用热电偶
CN207763843U (zh) * 2018-01-23 2018-08-24 东莞市美鑫自动化科技有限公司 一种耐高温抗干扰热电偶线
CN210375458U (zh) * 2019-08-16 2020-04-21 天津翔越电仪技术有限公司 一种新型热电偶感温线的保护结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6102565A (en) * 1996-07-12 2000-08-15 Isuzu Ceramics Research Institute Co., Ltd. Ceramic sheath type thermocouple
EP0887632A1 (fr) * 1997-06-24 1998-12-30 Isuzu Ceramics Research Institute Co., Ltd. Thermocouple avec manteau-protecteur en céramique pour mesurer la température d'un métal fondu
CN106644130A (zh) * 2015-10-30 2017-05-10 天津中电天仪科技有限公司 一种新型耐高温、耐腐蚀专用热电偶
CN207317957U (zh) * 2017-09-19 2018-05-04 重庆洋泰科技发展有限公司 水泥高温耐磨专用热电偶
CN207763843U (zh) * 2018-01-23 2018-08-24 东莞市美鑫自动化科技有限公司 一种耐高温抗干扰热电偶线
CN210375458U (zh) * 2019-08-16 2020-04-21 天津翔越电仪技术有限公司 一种新型热电偶感温线的保护结构

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHANG, ZHONGLUN ET AL.: "10. Chlorosulfonated Polyethylene", A CONCISE HANDBOOK OF RAW MATERIALS AND EQUIPMENT USED IN RUBBER INDUSTRY, 30 November 2016 (2016-11-30), CN, pages 94 - 97, XP009532122, ISBN: 9787568262743 *

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