CN2689203Y - Thermocouple - Google Patents
Thermocouple 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
- thermocouple
- utility
- model
- temperature measurement
- 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
Links
- 239000000945 filler Substances 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 10
- 239000010439 graphite Substances 0.000 claims description 10
- 238000009529 body temperature measurement Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 230000035939 shock Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 3
- 230000001590 oxidative effect Effects 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 description 3
- 239000010431 corundum Substances 0.000 description 3
- 229910052702 rhenium Inorganic materials 0.000 description 3
- WUAPFZMCVAUBPE-UHFFFAOYSA-N rhenium atom Chemical compound [Re] WUAPFZMCVAUBPE-UHFFFAOYSA-N 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a temperature measurement technique, in particular to thermocouple. The utility model discloses a thermocouple of high temperature measurement corrodes with alkali-resistant medium under vacuum and non-oxidizing atmosphere. The technical scheme is that a layer of protective conduit is added outside the protective conduit of any one index number of the conventional thermocouple, and a filling agent is arranged between the two layers of protective conduits. The thermocouple has the advantages of good corrosion resistance, air tightness, shock resistance, long service life, safety and reliability. It is especially suitable for continuous temperature measurement in vacuum and non-oxidizing atmosphere in the presence of high temperature and alkaline medium corrosion.
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 | Thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032886 CN2689203Y (en) | 2004-02-19 | 2004-02-19 | Thermocouple |
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 | Thermocouple |
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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1121607C (en) | Flow tube lining | |
| EP1028098A3 (en) | SiC-C/C composite material, uses thereof and method for producing the same | |
| CN2689203Y (en) | Thermocouple | |
| CN111074194B (en) | Remelting method in boiler membrane type water-cooled wall heating surface anticorrosive coating atmosphere furnace | |
| CN101034016A (en) | Special type WRe temperature sensor | |
| CN106644130A (en) | Novel high-temperature-resistant, corrosion-resistant special-purpose thermal couple | |
| CN210711615U (en) | Device for monitoring erosion state of converter lining in real time on line | |
| CN202679690U (en) | Energy-saving and environment friendly electromagnetic induction heating furnace | |
| CN2793069Y (en) | Glass liquid bubbling tube | |
| CN213685616U (en) | Novel fireproof air pipe for preventing smoke discharge | |
| CN206132251U (en) | Silicon nitride thermocouple protection tube | |
| CN2132980Y (en) | Long-life thermocouple for measuring temp of corrosive mediums | |
| CN2420632Y (en) | Anti-high temperature anti-corrosion thermal electric couple | |
| CN105403042A (en) | Graphite crucible for graphitization furnace | |
| CN219390518U (en) | High temperature heat carrier pressure taking device | |
| CN202033120U (en) | Novel special thermocouple for pipeline of hot air furnace | |
| CN101592530A (en) | The thermocouple protective casing of liquid zinc corrosion resistant | |
| CN206410508U (en) | A kind of electric heating aluminum alloy smelting furnace | |
| CN205300240U (en) | Graphite crucible for graphitization furnace | |
| CN216897380U (en) | Boiler water-cooled wall structure | |
| CN216743376U (en) | Harsh corrosion resistant pipeline | |
| CN219197974U (en) | High-temperature-resistant belleville spring | |
| CN108033809A (en) | A kind of production technology of silicon-carbide-based composite ceramic protection tube of thermocouple | |
| CN215413231U (en) | Furnace wall temperature measuring device | |
| CN201686712U (en) | Device for diagnosing situation of lower hearth lining of blast furnace |
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 |