CN2689203Y - Thermal electric couple - Google Patents
Thermal electric couple Download PDFInfo
- Publication number
- CN2689203Y CN2689203Y CN 200420032886 CN200420032886U CN2689203Y CN 2689203 Y CN2689203 Y CN 2689203Y CN 200420032886 CN200420032886 CN 200420032886 CN 200420032886 U CN200420032886 U CN 200420032886U CN 2689203 Y CN2689203 Y CN 2689203Y
- Authority
- CN
- China
- Prior art keywords
- thermopair
- thermal electric
- utility
- model
- electric couple
- 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.)
- Expired - Lifetime
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to the temperature measurement technique, particularly relating to a thermal electric couple. The utility model discloses the thermal electric couple of alkaline medium corrosion resistance used for the high temperature measurement in the vacuum and nonoxidizing atmosphere. The technical project is that one layer of protection conduit is increased outside the protection conduit of the prior thermal electric couples of any kind of grade division marks, and there is the bulk additive between two layers of protection conduits. The thermal electric couple has the advantages of favorable corrosion resistance, air impermeability, and earthquake resistance, long service life, and safety and reliability. So the utility model is especially suitable for the vacuum under high temperature and alkaline medium corrosion, and the continuous temperature measurement under the nonoxidizing atmosphere.
Description
Technical field
The utility model relates to temperature measurement technology, particularly a kind of thermopair.
Background technology
Thermopair as a kind of temperature element, has a wide range of applications in fields such as metallurgy, chemical industry.In the prior art, measure the thermopair of high temperature, as Wolfram rhenium heat electric couple etc., the protection tube that generally adopts stupalith such as corundum to make is enclosed within outside the thermopair, constitutes the thermocouple temperature measurement element.Because under hot environment, during various heating furnaces work, fire resistive material and heated medium can produce corrosive gas or melt in the stove, especially when medium when being alkaline, are comparison severity to the corrosion of protecting tube.The protecting tube that is corroded forms cavity or crack on protection tube, these media are the further interior thermopair of corrosion protection pipe again, finally causes the damage of thermocouple temperature measurement element to be scrapped.
The utility model content
Technical problem to be solved in the utility model is exactly the above-mentioned shortcoming at prior art, and a kind of thermopair with double shielding conduit is provided.
The technical scheme that its technical matters that solves the utility model adopts is that a kind of thermopair is characterized in that: be outside equipped with the outer protection tube at the thermocouple protection conduit.
The beneficial effects of the utility model are, and are simple in structure, long service life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
The technical solution of the utility model is that a kind of thermopair is characterized in that: be outside equipped with the outer protection tube at the thermocouple protection conduit; Concrete scheme is that described the outer protection tube is the graphite protection tube; Described protecting tube is gapped between the outer protection tube; Filling agent is arranged in the gap; Concrete filling agent is a graphite; Scheme is more specifically, and above-mentioned thermopair is the thermopair of any one calibration number.
Embodiment
Referring to Fig. 1.1 is graphite the outer protection tube among the figure, the 2nd, and graphite-filled dose, the 3rd, the thermopair of existing any one calibration number.The thermopair that this is routine is in existing Wolfram rhenium heat electric couple outside, puts a graphite protection tube, between the corundum conduit of graphite protection tube and Wolfram rhenium heat electric couple itself, fills graphite, constitutes this routine thermopair.The thermopair of this structure, at high temperature, graphite the outer protection tube and filling agent are sintered to one, have strengthened the impermeability and the shock resistance of thermopair.The thermopair that this is routine is particularly suitable under vacuum and the nonoxidizing atmosphere, and the temperature survey of high-temperature fusant is as the temperature test of molten steel application of vacuum process.In the use, thermopair both can vertically insert, and also can level insert, and can also tilt to insert in the high-temperature fusant.Even the corundum conduit of thermopair by accidental damage, can not destroy the atmosphere of system (thermometric environment) yet.Safe and reliable.
The utility model also is not limited to the description of the foregoing description, for different thermometric environment, can select the outer protection tube and the filling agent of different materials, to improve the corrosion resistivity and the serviceable life of thermopair.
Claims (6)
1. a thermopair is characterized in that: be outside equipped with the outer protection tube at the thermocouple protection conduit.
2. thermopair according to claim 1 is characterized in that: described the outer protection tube is the graphite protection tube.
3. thermopair according to claim 1 and 2 is characterized in that: gapped between described protecting tube and the outer protection tube; Filling agent is arranged in the gap.
4. thermopair according to claim 3 is characterized in that: described filling agent is a graphite.
5. thermopair according to claim 3 is characterized in that: described thermopair is the thermopair of any one calibration number.
6. according to claim 1,2 or 4 described thermopairs, it is characterized in that: described thermopair is the thermopair of any one calibration number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032886 CN2689203Y (en) | 2004-02-19 | 2004-02-19 | Thermal electric couple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032886 CN2689203Y (en) | 2004-02-19 | 2004-02-19 | Thermal electric couple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2689203Y true CN2689203Y (en) | 2005-03-30 |
Family
ID=34670631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420032886 Expired - Lifetime CN2689203Y (en) | 2004-02-19 | 2004-02-19 | Thermal electric couple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2689203Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034016B (en) * | 2007-04-04 | 2010-07-21 | 沈阳东大传感技术有限公司 | Special type WRe temperature sensor |
| CN101539551B (en) * | 2009-04-23 | 2011-09-14 | 思源电气股份有限公司 | Transformer oil chromatographic detection system and detection method thereof |
| CN103292924A (en) * | 2012-02-27 | 2013-09-11 | 福建省长汀金龙稀土有限公司 | Temperature measuring equipment and temperature measuring thermocouple for rare earth electrolytic cell |
-
2004
- 2004-02-19 CN CN 200420032886 patent/CN2689203Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034016B (en) * | 2007-04-04 | 2010-07-21 | 沈阳东大传感技术有限公司 | Special type WRe temperature sensor |
| CN101539551B (en) * | 2009-04-23 | 2011-09-14 | 思源电气股份有限公司 | Transformer oil chromatographic detection system and detection method thereof |
| CN103292924A (en) * | 2012-02-27 | 2013-09-11 | 福建省长汀金龙稀土有限公司 | Temperature measuring equipment and temperature measuring thermocouple for rare earth electrolytic cell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140219 Granted publication date: 20050330 |