CN102980675A - Suction thermocouple - Google Patents
Suction thermocouple Download PDFInfo
- Publication number
- CN102980675A CN102980675A CN2012104954630A CN201210495463A CN102980675A CN 102980675 A CN102980675 A CN 102980675A CN 2012104954630 A CN2012104954630 A CN 2012104954630A CN 201210495463 A CN201210495463 A CN 201210495463A CN 102980675 A CN102980675 A CN 102980675A
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- thermocouple
- suction
- outer tube
- gap
- 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
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Abstract
The invention discloses a suction thermocouple, which comprises a terminal box, a flange, an outer sleeve, an inner sleeve placed in the outer sleeve, and thermocouple wires placed in the inner sleeve, wherein a gap is reserved between the inner sleeve and the outer sleeve; and gas in the gap is sucked away by a vacuum suction device through a pipeline. When the suction thermocouple is used in a high-temperature state environment where corrosive gas or poisonous gas exists, the service life is prolonged and the safety performance is improved.
Description
Technical field
The present invention relates to a kind of suction thermocouple.
Background technology
Some fire box temperatures reach 1100 ℃～1300 ℃, and have some media such as the corrosive gas such as sulfuretted hydrogen, sulphuric dioxide generations in burner hearth.Following situation may occur in traditional thermopair in use.
1, thermopair internal and external casing tube wall swells under the high temperature, produces small pore, and corrosive gas is penetrated into thermopair inner sleeve internal contamination corrosion thermocouple wire, and the temperature that thermopair is measured is drifted about, and shorten serviceable life, finally causes the thermocouple wire fracture.
2, the existence of corrosive gas under the high temperature uses the internal and external casing of common metal material to be corroded very soon, and the existing corundum that use as the material of internal and external casing more, and the internal and external casing that uses corundum to make is high temperature resistant, corrosion-resistant.But, cold alternately and in the corrosive gas situation about existing in heat, or casing collapse can occur, cause hazardous medium to be revealed, sulfuretted hydrogen, sulphuric dioxide etc. all are hypertoxic gas, its leakage even can cause security incident, the internal and external casing fracture may make inner sleeve directly fall in the burner hearth, can affect its normal operation.
Based on above problem, existing thermopair is demanded urgently improving.
Summary of the invention
Problem for prior art exists the object of the invention is to propose a kind of suction thermocouple, and in the condition of high temperature, comprising when using in the environment of corrosive gas, toxic gas, increase serviceable life, and security performance improves.
For reaching this purpose, the present invention by the following technical solutions:
A kind of suction thermocouple, comprise terminal box, flange, outer tube, be built in outer tube inner sleeve, be built in the thermocouple wire of inner sleeve, leaving gap between inner sleeve and the outer tube, vacuum absorption device siphons away gas in the gap by pipeline.
Outer tube and inner sleeve adopt corundum to make.
Based on disclosing of above technical scheme, the present invention possesses following beneficial effect:
The present invention can prevent that outer sleeve inner wall, inner sleeve inner and outer wall and thermocouple wire from suffering the corrosion of corrosive gas, can also further prevent the corrosive gas leakage, thereby promotes its serviceable life and use safety coefficient.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the embodiment of the invention 1.
Embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment:
Embodiment 1
A kind of suction thermocouple is proposed, comprise terminal box 1, flange 2, outer tube 3, be built in outer tube 3 inner sleeve 5, be built in the thermocouple wire 6 of inner sleeve 5, leaving gap 7 between inner sleeve 5 and the outer tube 3, vacuum absorption device 4 siphons away gap 7 interior gases by pipeline.Outer tube 3 and inner sleeve 5 adopt corundum to make.
Among the present invention, leaving gap 7 between inner sleeve 5 and the outer tube 3 by offering passage at outer tube 3, and connects the air entry of vacuum absorption device 4 by connecting pipe.In the actual mechanical process, under the high temperature, outer tube 3 tube walls swell, produce small pore, gas permeation enters in the gap 7 between outer tube 3 and the inner sleeve 5, and vacuum absorption device 4 work siphon away gap 7 interior gases, make again to reach vacuum state in the gap 7, can remove the corrosive gas in the 7 interior gases of gap.Thereby prevent corrosive gas corrosion outer tube 3 inwalls and inner sleeve 5 outer walls 5; can prevent that also corrosive gas is by penetrating in the inner sleeve 5; thereby inwall and thermocouple wire 6 to inner sleeve 5 cause corrosion; further prevent corrosive gas by inner sleeve 5 to outward leakage, thereby protection of the environment and eliminate the threat that public security is caused.
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (2)
1. suction thermocouple, comprise terminal box (1), flange (2), outer tube (3), be built in described outer tube (3) inner sleeve (5), be built in the thermocouple wire (6) of described inner sleeve (5), it is characterized in that, leaving gap (7) between described inner sleeve (5) and the described outer tube (3), vacuum absorption device (4) siphons away the interior gas in described gap (7) by pipeline.
2. suction thermocouple according to claim 1 is characterized in that, described outer tube (3) and described inner sleeve (5) adopt corundum to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104954630A CN102980675A (en) | 2012-11-28 | 2012-11-28 | Suction thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104954630A CN102980675A (en) | 2012-11-28 | 2012-11-28 | Suction thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102980675A true CN102980675A (en) | 2013-03-20 |
Family
ID=47854902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104954630A Pending CN102980675A (en) | 2012-11-28 | 2012-11-28 | Suction thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102980675A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198069A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德仪表有限公司 | Thermocouple for air compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040047395A1 (en) * | 2000-07-12 | 2004-03-11 | Zhi Xie | Method for continuously measuring melting steel temperature and measuring temperature pipe |
| CN2786581Y (en) * | 2005-04-05 | 2006-06-07 | 谭铁桥 | Thermocouple with outside arranged gas resource protector |
| CN101750165A (en) * | 2010-01-08 | 2010-06-23 | 浙江伦特机电有限公司 | Blowing thermocouple |
| CN201569510U (en) * | 2009-12-17 | 2010-09-01 | 淄博飞雁先行测控技术有限公司 | Temperature thermocouple for bottom part of long-life glass tank furnace |
| CN201935748U (en) * | 2010-11-25 | 2011-08-17 | 上海梅山钢铁股份有限公司 | Thermocouple of zinc pot |
-
2012
- 2012-11-28 CN CN2012104954630A patent/CN102980675A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040047395A1 (en) * | 2000-07-12 | 2004-03-11 | Zhi Xie | Method for continuously measuring melting steel temperature and measuring temperature pipe |
| CN2786581Y (en) * | 2005-04-05 | 2006-06-07 | 谭铁桥 | Thermocouple with outside arranged gas resource protector |
| CN201569510U (en) * | 2009-12-17 | 2010-09-01 | 淄博飞雁先行测控技术有限公司 | Temperature thermocouple for bottom part of long-life glass tank furnace |
| CN101750165A (en) * | 2010-01-08 | 2010-06-23 | 浙江伦特机电有限公司 | Blowing thermocouple |
| CN201935748U (en) * | 2010-11-25 | 2011-08-17 | 上海梅山钢铁股份有限公司 | Thermocouple of zinc pot |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198069A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德仪表有限公司 | Thermocouple for air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130320 |