CN102721482A - Temperature sensor with resistance against high temperature, high pressure and high humidity - Google Patents
Temperature sensor with resistance against high temperature, high pressure and high humidity Download PDFInfo
- Publication number
- CN102721482A CN102721482A CN2012102281941A CN201210228194A CN102721482A CN 102721482 A CN102721482 A CN 102721482A CN 2012102281941 A CN2012102281941 A CN 2012102281941A CN 201210228194 A CN201210228194 A CN 201210228194A CN 102721482 A CN102721482 A CN 102721482A
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- temperature sensor
- temperature
- thermo wires
- protection tube
- sealing
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Abstract
The invention relates to a temperature sensor with resistance against high temperature, high pressure and high humidity, which comprises a protective tube. The front end of the protective tube is provided with a hemispherical sealing head, a positive thermo wire and a negative thermo wire are arranged in the protective tube, and the front end of the positive thermo wire is connected with the front end of the negative thermo wire; the protective tube is filled with magnesium oxide powder; the tail end of the protective tube is sealed by a sealing block; and the tail ends of the positive thermo wire and the negative thermo wire penetrate through the sealing block and are arranged outside the sealing block. The reliability and temperature measurement accuracy can be ensured for use of the temperature sensor in the high-temperature, high-pressure and high-humidity environment and the service life of the temperature sensor can be prolonged. Most importantly, the complete sealing under high-temperature, high-pressure and high-humidity adverse conditions can be ensured, thus the adaptability of the temperature sensor to the environment can be ensured, and the safety and reliability of power station detection can be improved greatly.
Description
Technical field
The present invention relates to a kind of temperature sensor, particularly a kind of high temperature high voltage resistant high humility temperature sensor.
Background technology
Along with the great development of urbanization, household electricity, commercial power are in short supply day by day, and greatly developing electric power becomes present hot issue.High insulated temperature sensor that the HTHP high humidity environment of development is suitable for has down satisfied electric power that China the greatly develops high request to temperature sensor, has ensured the safety of China's energy supply, and has realized electricity industry structure optimization and sustainable development.
Present temperature sensor on the market all can not satisfy has high insulating property under the HTHP high humidity environment; Even if the pyrostat of nominal, can not guarantee whole sensor (comprise cold junction or be terminals) can be simultaneously anti-the environment such as high humidity of high temperature, the above high pressure of 23MPa, relative humidity 75% more than 250 ℃.
Summary of the invention
The object of the invention is exactly the deficiency to prior art, and a kind of sealing fully under high temperature, high pressure, three mal-conditions of high humility that guarantees is provided, and increases the security of power station detection and a kind of high temperature high voltage resistant high humility temperature sensor of reliability.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of high temperature high voltage resistant high humility temperature sensor; Comprise protection tube; It is characterized in that: the front end of said protection tube is provided with hemispherical head, is provided with anodal thermo wires and negative pole thermo wires in protection tube inside, and the front end of the front end of anodal thermo wires and negative pole thermo wires interconnects; The inside of said protection tube is full of magnesia powder; The tail end of said protection tube is by the fast sealing of sealing; The tail end of said anodal thermo wires and negative pole thermo wires passes sealing and places the fast outside of sealing soon.
Owing to adopted technique scheme; Reliability and temperature measurement accuracy that temperature sensor HTHP high humidity environment uses have not only been guaranteed; And prolonged serviceable life; Most importantly guarantee sealing fully under high temperature, high pressure, three mal-conditions of high humility, guaranteed the environmental suitability of temperature sensor, increased security and reliability that the power station is detected greatly.
Preferably, said sealing is made up of glass soon.For accuracy and the reliability that improves temperature sensor measurement, the present invention selects for use glass material to come the temperature sensor opening end is sealed, and has reduced the dependence to web member, makes whole temperature sensor reach requirement.
Preferably, said anodal thermo wires and negative pole thermo wires are two pairs.Adopt two pairs of anodal thermo wires and negative pole thermo wires can correct measurement data, make measurement data more accurate.
Preferably, said protection tube is processed by stainless steel material.Stainless steel is corrosion-resistant, can improve the serviceable life of sensor.
Preferably, the front end of said anodal thermo wires and negative pole thermo wires is through being welded to connect.
Preferably, between said protection tube and the hemispherical head through being welded to connect.
A kind of high temperature high voltage resistant high humility temperature sensor of the present invention; Reliability and temperature measurement accuracy that temperature sensor HTHP high humidity environment uses have not only been guaranteed; And prolonged serviceable life; Most importantly guarantee sealing fully under high temperature, high pressure, three mal-conditions of high humility, guaranteed the environmental suitability of temperature sensor, increased security and reliability that the power station is detected greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described, but therefore invention is not limited among the described scope of embodiments.
Referring to Fig. 1; A kind of high temperature high voltage resistant high humility temperature sensor comprises protection tube 2, and it is characterized in that: the front end of said protection tube 2 is provided with hemispherical head 1; Be provided with anodal thermo wires 3 and negative pole thermo wires 4 in protection tube 2 inside, the front end of the front end of anodal thermo wires 3 and negative pole thermo wires 4 interconnects; The inside of said protection tube 2 is full of magnesia powder 5; The tail end of said protection tube 2 is by fast 6 sealings of sealing; The tail end of said anodal thermo wires 3 and negative pole thermo wires 4 passes the outside that sealing fast 6 places sealing fast 6.
Said sealing fast 6 is made up of glass.For accuracy and the reliability that improves temperature sensor measurement, the present invention selects for use glass material to come the temperature sensor opening end is sealed, and has reduced the dependence to web member, makes whole temperature sensor reach requirement.
Said anodal thermo wires 3 is two pairs with negative pole thermo wires 4.Adopt two pairs of anodal thermo wires 3 can correct measurement data, make measurement data more accurate with negative pole thermo wires 4.
Said protection tube 1 is processed by stainless steel material.Stainless steel is corrosion-resistant, can improve the serviceable life of sensor.
The front end of said anodal thermo wires 3 and negative pole thermo wires 4 is through being welded to connect.
Between said protection tube 2 and the hemispherical head 1 through being welded to connect.
Though in conjunction with accompanying drawing embodiment of the present invention has been described; But those of ordinary skill in the art can make various distortion or modification within the scope of the appended claims; The technician of the industry should understand; The present invention is not restricted to the described embodiments, and that describes in the foregoing description and the instructions just explains principle of the present invention, under the prerequisite that does not break away from spirit and scope of the invention; The present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the present invention that requires protection; The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (6)
1. high temperature high voltage resistant high humility temperature sensor; Comprise protection tube (2); It is characterized in that: the front end of said protection tube (2) is provided with hemispherical head (1); Be provided with anodal thermo wires (3) and negative pole thermo wires (4) in protection tube (2) inside, the front end of the front end of anodal thermo wires (3) and negative pole thermo wires (4) interconnects; The inside of said protection tube (2) is full of magnesia powder (5); The tail end of said protection tube (2) is by sealing fast (6) sealing; The tail end of said anodal thermo wires (3) and negative pole thermo wires (4) passes the outside that sealing fast (6) places sealing fast (6).
2. a kind of high temperature high voltage resistant high humility temperature sensor according to claim 1 is characterized in that: said sealing fast (6) is made up of glass.
3. a kind of high temperature high voltage resistant high humility temperature sensor according to claim 1 is characterized in that: said anodal thermo wires (3) and negative pole thermo wires (4) are two pairs.
4. a kind of high temperature high voltage resistant high humility temperature sensor according to claim 1, it is characterized in that: said protection tube (1) is processed by stainless steel material.
5. a kind of high temperature high voltage resistant high humility temperature sensor according to claim 1, the front end of said anodal thermo wires (3) and negative pole thermo wires (4) is through being welded to connect.
6. a kind of high temperature high voltage resistant high humility temperature sensor according to claim 1, between said protection tube (2) and the hemispherical head (1) through being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102281941A CN102721482A (en) | 2012-07-04 | 2012-07-04 | Temperature sensor with resistance against high temperature, high pressure and high humidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102281941A CN102721482A (en) | 2012-07-04 | 2012-07-04 | Temperature sensor with resistance against high temperature, high pressure and high humidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102721482A true CN102721482A (en) | 2012-10-10 |
Family
ID=46947307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102281941A Pending CN102721482A (en) | 2012-07-04 | 2012-07-04 | Temperature sensor with resistance against high temperature, high pressure and high humidity |
Country Status (1)
| Country | Link |
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| CN (1) | CN102721482A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065706A (en) * | 2013-01-17 | 2013-04-24 | 重庆大学 | Armored cable for electromagnetic induction sensor and manufacturing craft thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57119228A (en) * | 1981-01-16 | 1982-07-24 | Sumitomo Metal Ind Ltd | Method of manufacturing protective tube for thermocouple |
| CN1229189A (en) * | 1998-01-12 | 1999-09-22 | 株式会社五十铃硅酸盐研究所 | Electric thermo-couple for measuring temp. of metal solution |
| CN2593174Y (en) * | 2003-01-12 | 2003-12-17 | 中国石油大庆石油化工总厂 | Thermal couple casing pipe |
| CN201083550Y (en) * | 2007-08-31 | 2008-07-09 | 山东康泰实业有限公司 | Anti-knock abrasion-proof electric thermo-couple |
-
2012
- 2012-07-04 CN CN2012102281941A patent/CN102721482A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57119228A (en) * | 1981-01-16 | 1982-07-24 | Sumitomo Metal Ind Ltd | Method of manufacturing protective tube for thermocouple |
| CN1229189A (en) * | 1998-01-12 | 1999-09-22 | 株式会社五十铃硅酸盐研究所 | Electric thermo-couple for measuring temp. of metal solution |
| CN2593174Y (en) * | 2003-01-12 | 2003-12-17 | 中国石油大庆石油化工总厂 | Thermal couple casing pipe |
| CN201083550Y (en) * | 2007-08-31 | 2008-07-09 | 山东康泰实业有限公司 | Anti-knock abrasion-proof electric thermo-couple |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103065706A (en) * | 2013-01-17 | 2013-04-24 | 重庆大学 | Armored cable for electromagnetic induction sensor and manufacturing craft thereof |
| CN103065706B (en) * | 2013-01-17 | 2015-06-03 | 重庆大学 | Armored cable for electromagnetic induction sensor and manufacturing craft thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121010 |