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CN106352995A - Thermocouple-based temperature measurement device - Google Patents

Thermocouple-based temperature measurement device Download PDF

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Publication number
CN106352995A
CN106352995A CN201610816627.3A CN201610816627A CN106352995A CN 106352995 A CN106352995 A CN 106352995A CN 201610816627 A CN201610816627 A CN 201610816627A CN 106352995 A CN106352995 A CN 106352995A
Authority
CN
China
Prior art keywords
temperature
thermocouple
sensitive head
sleeve pipe
rear end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610816627.3A
Other languages
Chinese (zh)
Inventor
杨蔚然
徐贵江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Austrian Furnace Technology Co Ltd
Original Assignee
Xiamen Austrian Furnace Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Austrian Furnace Technology Co Ltd filed Critical Xiamen Austrian Furnace Technology Co Ltd
Priority to CN201610816627.3A priority Critical patent/CN106352995A/en
Publication of CN106352995A publication Critical patent/CN106352995A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02Measuring 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

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

Abstract

The invention discloses a thermocouple-based temperature measurement device. The thermocouple-based temperature measurement device comprises a thermocouple wire, a temperature sensing head and a protecting sleeve, wherein the thermocouple wire is arranged in the protecting sleeve, the temperature sensing head is made of a good heat conductor material, the rear end of the temperature sensing head is fixed at the front end of the protecting sleeve to seal the thermocouple wire in the protecting sleeve, and a temperature measurement welding point at the front end of the thermocouple wire is inlaid into the temperature sensing head integrally so as to form a temperature measurement head of a thermocouple. The thermocouple-based temperature measurement device has the advantages that temperature measurement precision is improved, and the service life of the thermocouple is prolonged.

Description

Thermocouple temperature measuring apparatus
Technical field
The present invention relates to a kind of thermocouple temperature measuring apparatus, it is particularly suitable for measuring furnace temp and high temperature melting liquid temperature Degree, belongs to electric heating temperature element field.
Background technology
Thermocouple is conventional temperature element in temperature measuring instrument, and the ultimate principle of thermocouple temperature measurement is two kinds of different one-tenth The conductor two ends of part are bonded into loop, when the temperature at abutment is different, will produce electromotive force, referred to as thermoelectricity in the loop Gesture.Thermocouple is exactly carried out thermometric using this principle.At present, mostly thermocouple is that thermocouple wire 10 is encapsulated in protective case In pipe 20, it is divided into dew end formula (as shown in Figure 1a), body contact formula (as Fig. 1 b by the package assembly of thermometric solder joint 30 and protection sleeve pipe 20 Shown) and three kinds of insulation (as illustrated in figure 1 c).
, in the outside of protection sleeve pipe 20, thermometric response time is the fastest, only applicable for the thermometric solder joint 30 of the formula of dew end shown in Fig. 1 a Using it is impossible to use in humid air or liquid in the non-corrosive medium being dried.The thermometric solder joint of body contact formula shown in Fig. 1 b 30 are welded together with protection sleeve pipe 20, because body contact can reduce the time of heat transfer, fast to thermotonuses, but anti-electromagnetism is done Disturb poor ability it is adaptable to the less occasion of outer signals interference uses.The thermometric solder joint 30 of insulation shown in Fig. 1 c is enclosed in Inside protection sleeve pipe 20, it is difficult to be disturbed by outer signals, but the response time is slower than body contact formula.
Requirement to thermocouple temperature measurement is quick, accurate, stable, only reaches requirements above and just enables to metal smelt Precise control Deng kiln temperature or temperature of liquid.
For heating furnace or high temperature solution temperature real-time online measuring, when temperature thermocouple front end is in high-temp waste gas Environment or when being immersed in high temperature solution, the washing away of surrounding material, corrodes and high temperature can protect sleeve pipe 20 produce temperature thermocouple Destruction, long-time protection sleeve pipe 20 surface exposing can become uneven or be covered by impurity, shadow to a great extent Ring its temperature and heat conductivity, the impact certainty of measurement of thermocouple and the service life of thermocouple.Therefore traditional thermocouple makes Very expensive with cost.
Content of the invention
It is an object of the invention to provide a kind of thermocouple temperature measuring apparatus, to improve temperature measurement accuracy, extend making of thermocouple Use the life-span.
In order to reach above-mentioned purpose, the solution of the present invention is:
Thermocouple temperature measuring apparatus, including thermocouple wire, temperature-sensitive head and protection sleeve pipe, thermocouple wire is contained in protection sleeve pipe, and temperature-sensitive head is The good conductor material of heat, the rear end of temperature-sensitive head is fixed on protects the front end of sleeve pipe that thermocouple wire is enclosed in protection sleeve pipe, galvanic couple The thermometric solder joint of silk front end is set in the temperature measuring head being integrally formed and forming thermocouple in temperature-sensitive head.
Described temperature-sensitive head can be metal, nonmetallic or composite.
The front end in protection sleeve pipe that is tightly fixed is passed through in the rear end of described temperature-sensitive head.
The front end of described protection sleeve pipe forms female thread, and the rear end of temperature-sensitive head is formed external screw thread, coordinated by screw thread, make sense The rear end of warm head is fixed on the front end of protection sleeve pipe.
The rear end of described temperature-sensitive head forms necking segment and step, and the front end of protection sleeve pipe is against on the rear end step of temperature-sensitive head And fixed cover is in the rear end necking segment of temperature-sensitive head.
The front end of described thermocouple wire is interspersed in the perforation of temperature-sensitive head, so that thermometric solder joint is set in temperature-sensitive head.
Described thermocouple wire surface increases coating, so that thermocouple wire is insulated with temperature-sensitive head.
Fill insulant between described thermocouple wire and protection sleeve pipe.
Rosette is installed in the rear end of described protection sleeve pipe.
After such scheme, the thermometric solder joint of thermocouple wire front end is set in the good conductor temperature-sensitive head of heat the present invention, makes The thermometric solder joint of thermocouple wire and temperature-sensitive head directly contact, temperature-sensitive head has good heat conductivity and temperature tolerance, it is possible to reduce heat The time of transmission, thermocouple is fast to dut temperature response, improves temperature measurement accuracy, and temperature-sensitive head has fine protection to make to thermocouple wire With extending the service life of thermocouple.
Brief description
Fig. 1 a is the structural representation of existing dew end formula thermocouple;
Fig. 1 b is the existing structural representation connecing shell thermocouple;
Fig. 1 c is the structural representation of existing insulation thermocouple;
Fig. 2 is the structural representation of the present invention;
Fig. 3 is the partial enlarged drawing of the present invention.
Specific embodiment
As shown in Figures 2 and 3, the thermocouple temperature measuring apparatus that the present invention discloses, including thermocouple wire 1, temperature-sensitive head 2 and protective case Pipe 4.
Thermocouple wire 1 is contained in protection sleeve pipe 4.
Temperature-sensitive head 2 is the good conductor material of heat, can be such as metal, nonmetallic or composite etc..Temperature-sensitive head 2 Rear end is fixed on the front end of protection sleeve pipe 4, and thermocouple wire 1 is enclosed in protection sleeve pipe 4.Have between temperature-sensitive head 2 and protection sleeve pipe 4 Body can be by being tightly fixed it is also possible to form female thread in the front end of protection sleeve pipe 4, the rear end of temperature-sensitive head 2 forms outer spiral shell Stricture of vagina, is coordinated by screw thread, makes the rear end of temperature-sensitive head 2 be fixed on the front end of protection sleeve pipe 4, shown in acceptable such embodiment, The rear end of temperature-sensitive head 2 forms necking segment 21 and step 22, and the front end of protection sleeve pipe 4 is against on the rear end step 22 of temperature-sensitive head 2, and Fixed cover is in the rear end necking segment 21 of temperature-sensitive head 2.
The thermometric solder joint 3 of thermocouple wire 1 front end is set in the temperature measuring head being integrally formed and forming thermocouple in temperature-sensitive head 2, makes electricity Thermometric solder joint 3 and temperature-sensitive head 2 directly contact of thermo wires 1.Specifically the front end of thermocouple wire 1 can be interspersed in the perforation of temperature-sensitive head 2 In, so that thermometric solder joint 3 is set in temperature-sensitive head 2.
Further, as shown in figure 3, thermocouple wire 1 surface increases coating 6, thermocouple wire 1 is made to insulate with temperature-sensitive head 2.
Fill insulant 7 between thermocouple wire 1 and protection sleeve pipe 4, further ensures that device normal work.
Rosette 5 is installed in the rear end of protection sleeve pipe 4, facilitates thermocouple wire 1 to be connected with control end.
So, the thermometric solder joint 3 of thermocouple wire 1 front end is directly set in the good conductor temperature-sensitive head 2 of heat the present invention, can subtract The time of few heat transfer, temperature-sensitive head 2 can rapidly conduct heat, thermometric solder joint 3 and temperature-sensitive head 2 directly contact of thermocouple wire 1 Temperature change can be recorded in time, thermocouple is fast to dut temperature response, improves temperature measurement accuracy, temperature-sensitive head 2 has to thermocouple wire 1 Protective effect very well, extends the service life of thermocouple.

Claims (9)

1. thermocouple temperature measuring apparatus it is characterised in that: include thermocouple wire, temperature-sensitive head and protection sleeve pipe, thermocouple wire is contained in protective case Guan Zhong, temperature-sensitive head is the good conductor material of heat, and the rear end of temperature-sensitive head is fixed on protects the front end of sleeve pipe that thermocouple wire is enclosed in guarantor In protecting pipe, the thermometric solder joint of thermocouple wire front end is set in the temperature measuring head being integrally formed and forming thermocouple in temperature-sensitive head.
2. thermocouple temperature measuring apparatus as claimed in claim 1 it is characterised in that: described temperature-sensitive head is metal, nonmetallic or multiple Condensation material.
3. thermocouple temperature measuring apparatus as claimed in claim 1 it is characterised in that: it is solid that tight fit is passed through in the rear end of described temperature-sensitive head It is scheduled on the front end of protection sleeve pipe.
4. thermocouple temperature measuring apparatus as claimed in claim 1 it is characterised in that: described protection sleeve pipe front end form interior spiral shell Stricture of vagina, the rear end of temperature-sensitive head forms external screw thread, is coordinated by screw thread, makes the rear end of temperature-sensitive head be fixed on the front end of protection sleeve pipe.
5. thermocouple temperature measuring apparatus as claimed in claim 1 it is characterised in that: the rear end of described temperature-sensitive head formed necking segment and Step, the front end of protection sleeve pipe is against on the rear end step of temperature-sensitive head and fixed cover is in the rear end necking segment of temperature-sensitive head.
6. thermocouple temperature measuring apparatus as claimed in claim 1 it is characterised in that: the front end of described thermocouple wire is interspersed in temperature-sensitive head Perforation in, so that thermometric solder joint is set in temperature-sensitive head.
7. thermocouple temperature measuring apparatus as claimed in claim 1 it is characterised in that: described thermocouple wire surface increases coating, makes electricity Thermo wires insulate with temperature-sensitive head.
8. thermocouple temperature measuring apparatus as claimed in claim 1 it is characterised in that: described thermocouple wire and protection sleeve pipe between fill Insulant.
9. thermocouple temperature measuring apparatus as claimed in claim 1 it is characterised in that: described protection sleeve pipe rear end install wiring Box.
CN201610816627.3A 2016-09-12 2016-09-12 Thermocouple-based temperature measurement device Pending CN106352995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610816627.3A CN106352995A (en) 2016-09-12 2016-09-12 Thermocouple-based temperature measurement device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610816627.3A CN106352995A (en) 2016-09-12 2016-09-12 Thermocouple-based temperature measurement device

Publications (1)

Publication Number Publication Date
CN106352995A true CN106352995A (en) 2017-01-25

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Country Status (1)

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CN (1) CN106352995A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107575886A (en) * 2017-09-04 2018-01-12 湖北亚钢金属制造有限公司 A kind of burner hearth cools down warning device
CN109386849A (en) * 2018-09-29 2019-02-26 华帝股份有限公司 Flameout protection device and manufacturing method
CN111220292A (en) * 2020-01-14 2020-06-02 浙江清华柔性电子技术研究院 Thermocouple and thermocouple sensor with same
CN111684247A (en) * 2018-01-31 2020-09-18 株式会社电装 Temperature Sensor
CN111684246A (en) * 2018-01-31 2020-09-18 株式会社电装 Temperature sensor and temperature measuring device
CN112649102A (en) * 2020-12-30 2021-04-13 陈建明 An assembled thermocouple

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201740604U (en) * 2010-06-12 2011-02-09 李硕 Dust-containing airflow temperature sensor
CN201795874U (en) * 2010-08-24 2011-04-13 沈阳真空技术研究所 Thermoelectric couple for vacuum high-temperature measurement and control
CN202836813U (en) * 2012-08-21 2013-03-27 安徽天康(集团)股份有限公司 Armored thermal resistor
EP2023106B1 (en) * 2007-08-09 2013-05-15 Weston Aerospace Limited Improved thermocouple head terminal
CN104359570A (en) * 2014-09-27 2015-02-18 重庆市大足区刘陈电热炉具厂 Temperature sensor
CN204964054U (en) * 2015-09-24 2016-01-13 哈尔滨宇龙自动化有限公司 Temperature transmitter
CN205192640U (en) * 2015-10-30 2016-04-27 北京方等传感器研究所有限公司 Assembled temperature sensor
CN206353056U (en) * 2016-09-12 2017-07-25 厦门奥冶炉相科技有限公司 Thermocouple temperature measuring apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2023106B1 (en) * 2007-08-09 2013-05-15 Weston Aerospace Limited Improved thermocouple head terminal
CN201740604U (en) * 2010-06-12 2011-02-09 李硕 Dust-containing airflow temperature sensor
CN201795874U (en) * 2010-08-24 2011-04-13 沈阳真空技术研究所 Thermoelectric couple for vacuum high-temperature measurement and control
CN202836813U (en) * 2012-08-21 2013-03-27 安徽天康(集团)股份有限公司 Armored thermal resistor
CN104359570A (en) * 2014-09-27 2015-02-18 重庆市大足区刘陈电热炉具厂 Temperature sensor
CN204964054U (en) * 2015-09-24 2016-01-13 哈尔滨宇龙自动化有限公司 Temperature transmitter
CN205192640U (en) * 2015-10-30 2016-04-27 北京方等传感器研究所有限公司 Assembled temperature sensor
CN206353056U (en) * 2016-09-12 2017-07-25 厦门奥冶炉相科技有限公司 Thermocouple temperature measuring apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107575886A (en) * 2017-09-04 2018-01-12 湖北亚钢金属制造有限公司 A kind of burner hearth cools down warning device
CN111684247A (en) * 2018-01-31 2020-09-18 株式会社电装 Temperature Sensor
CN111684246A (en) * 2018-01-31 2020-09-18 株式会社电装 Temperature sensor and temperature measuring device
CN111684247B (en) * 2018-01-31 2022-06-28 株式会社电装 Temperature Sensor
CN109386849A (en) * 2018-09-29 2019-02-26 华帝股份有限公司 Flameout protection device and manufacturing method
CN111220292A (en) * 2020-01-14 2020-06-02 浙江清华柔性电子技术研究院 Thermocouple and thermocouple sensor with same
CN112649102A (en) * 2020-12-30 2021-04-13 陈建明 An assembled thermocouple

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Application publication date: 20170125