CN203502131U - Blowing type sulfur recovery special-purpose thermocouple - Google Patents
Blowing type sulfur recovery special-purpose thermocouple Download PDFInfo
- Publication number
- CN203502131U CN203502131U CN201320661625.3U CN201320661625U CN203502131U CN 203502131 U CN203502131 U CN 203502131U CN 201320661625 U CN201320661625 U CN 201320661625U CN 203502131 U CN203502131 U CN 203502131U
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- CN
- China
- Prior art keywords
- core
- layer corundum
- protective casing
- communicated
- pipe
- 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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- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 238000011084 recovery Methods 0.000 title claims abstract description 13
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 13
- 239000011593 sulfur Substances 0.000 title claims abstract description 12
- 238000007664 blowing Methods 0.000 title claims abstract description 11
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 29
- 239000010431 corundum Substances 0.000 claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims abstract description 21
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 14
- 239000007789 gas Substances 0.000 abstract description 14
- 239000011261 inert gas Substances 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 description 1
- 238000001272 pressureless sintering Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a blowing type sulfur recovery special-purpose thermocouple, which comprises a protective casing pipe, wherein the protective casing pipe sequentially comprises an outer layer silicon carbide pipe, a middle layer corundum pipe and an inner layer corundum core from outside to inside, a temperature measuring core body is arranged in the inner layer corundum core, the inner layer corundum core is communicated with a gas inlet, the middle layer corundum pipe is communicated with a gas outlet, and the lower end of the inner layer corundum core is communicated with the middle layer corundum pipe. The structure of the blowing type sulfur recovery special-purpose thermocouple can effectively guarantee that the temperature measuring core body is under the protection of inert gases, the inert gases are directly introduced into the inner layer corundum core from the gas inlet for protecting the temperature measuring core body, the inert gases flow out from the lower end of the inner layer corundum core into the middle layer corundum pipe, and the inert gases are discharged from the gas outlet communicated with the middle layer corundum pipe, thereby effectively prolonging the service life of the entire thermocouple, guaranteeing the smooth measurement, and being good in corrosion resistance effect.
Description
Technical field
The utility model belongs to area of thermocouples, especially a kind of air blowing type sulfur recovery special electric thermo-couple.
Background technology
In sulphur recovery field, Sulfur Recovery Equipment normal operating temperature is 1200-1300 ℃, and has the H of high concentration
2, S, Cl
2, the reducing atmosphere such as CO, very easily the platinum rhodium element of thermopair inside is caused to reduction corrosion, i.e. " hydrogen embrittlement ", so that greatly shorten the serviceable life of product, affects carrying out smoothly of surveying work.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of air blowing type sulfur recovery special electric thermo-couple is provided, and this thermocouple structure is simple, design science reasonable, it is simple to make, cost is lower, extended serviceable life, ensure that measurement is carried out smoothly, anticorrosion effect is good.
The utility model solves its technical matters and is achieved through the following technical solutions:
A kind of air blowing type sulfur recovery special electric thermo-couple; comprise terminal box, thermometric core body and protective casing; protective casing is packed in terminal box lower end; thermometric core body is packed in the terminal box lower end in protective casing; on the protective casing of terminal box one end, be provided with air intake opening and gas outlet; its protective casing comprises outer carborundum tube, middle level alundum tube and internal layer corundum core from outside to inside successively; thermometric core body is arranged on internal layer corundum in-core; this internal layer corundum core is communicated with air intake opening; middle level alundum tube is communicated with gas outlet, and internal layer corundum core lower end is communicated with middle level alundum tube.
And described protective casing outer wall suit neck flange, at flange footpath outer wall mounting flange.
Advantage of the present utility model and beneficial effect are:
The protective casing of this air blowing type sulfur recovery special electric thermo-couple comprises outer carborundum tube from outside to inside successively, middle level alundum tube and internal layer corundum core, thermometric core body is arranged on internal layer corundum in-core, this internal layer corundum core is communicated with air intake opening, middle level alundum tube is communicated with gas outlet, internal layer corundum core lower end is communicated with middle level alundum tube, this structure can effective guarantee thermometric core body under the protection of inert gas, inert gas enters and directly passes into internal layer corundum in-core protection thermometric core body from air intake opening, inert gas flows out and enters in the alundum tube of middle level from internal layer corundum core lower end, inert gas is discharged from the gas outlet being communicated with middle level alundum tube, effectively extended the serviceable life of whole thermopair, ensure to measure and carry out smoothly, anticorrosion effect is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below by specific embodiment, the utility model is described in further detail, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of air blowing type sulfur recovery special electric thermo-couple, comprise terminal box 1, thermometric core body 2 and protective casing 4, protective casing is packed in terminal box lower end, thermometric core body is packed in the terminal box lower end in protective casing, on the protective casing of terminal box one end, be provided with air intake opening 3 and gas outlet 5, its protective casing comprises outer carborundum tube 8 from outside to inside successively, middle level alundum tube 9 and internal layer corundum core 10, thermometric core body is arranged on internal layer corundum in-core, this internal layer corundum core is communicated with air intake opening, middle level alundum tube is communicated with gas outlet, internal layer corundum core lower end is communicated with middle level alundum tube.Protective casing outer wall suit neck flange 6, at flange footpath outer wall mounting flange 7.
In the utility model structure, design air intake opening, gas outlet and gas circulation path, from air intake opening, be blown into inert nitrogen gas, nitrogen enters interiors of products, to discharge the reductibility etchant gas that infiltrates interiors of products, from gas outlet, discharge, to prevent being reduced property of thermometric core body atmosphere corrosion, increase the service life.The import silit that protection tube material adopts pressureless sintering submicron silicon carbide powder to manufacture, this material surface porosity is almost nil, and elevated temperature strength is good, can effectively resist reducing atmosphere and invade interiors of products, plays equally the effect that prevents reduction corrosion.The design of hermetically-sealed construction has guaranteed the flow trace of inert gas at interiors of products, improves service efficiency.The utility model be a kind of can be high temperature resistant, high pressure, there is the special electric thermo-couple of superpower antiseptic property.
Claims (2)
1. an air blowing type sulfur recovery special electric thermo-couple, comprise terminal box, thermometric core body and protective casing, protective casing is packed in terminal box lower end, thermometric core body is packed in the terminal box lower end in protective casing, on the protective casing of terminal box one end, be provided with air intake opening and gas outlet, it is characterized in that: protective casing comprises outer carborundum tube from outside to inside successively, middle level alundum tube and internal layer corundum core, thermometric core body is arranged on internal layer corundum in-core, this internal layer corundum core is communicated with air intake opening, middle level alundum tube is communicated with gas outlet, internal layer corundum core lower end is communicated with middle level alundum tube.
2. air blowing type sulfur recovery special electric thermo-couple according to claim 1, is characterized in that: described protective casing outer wall is set with neck flange, at flange footpath outer wall mounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661625.3U CN203502131U (en) | 2013-10-25 | 2013-10-25 | Blowing type sulfur recovery special-purpose thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320661625.3U CN203502131U (en) | 2013-10-25 | 2013-10-25 | Blowing type sulfur recovery special-purpose thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203502131U true CN203502131U (en) | 2014-03-26 |
Family
ID=50333102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320661625.3U Expired - Lifetime CN203502131U (en) | 2013-10-25 | 2013-10-25 | Blowing type sulfur recovery special-purpose thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203502131U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913247A (en) * | 2014-04-17 | 2014-07-09 | 上海岗崎控制仪表有限公司 | Structure and method for prolonging service life of precious metal temperature-sensing element |
| CN105300543A (en) * | 2015-11-03 | 2016-02-03 | 王少勇 | Long-life thermocouple for sulfur-producing burner |
| CN110646106A (en) * | 2019-10-14 | 2020-01-03 | 内蒙古科技大学 | Temperature detection device and system for rare earth molten salt electrolytic cell |
| CN110763362A (en) * | 2019-11-14 | 2020-02-07 | 中国计量科学研究院 | Pressure-controlled twisted platinum resistance thermometer |
-
2013
- 2013-10-25 CN CN201320661625.3U patent/CN203502131U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913247A (en) * | 2014-04-17 | 2014-07-09 | 上海岗崎控制仪表有限公司 | Structure and method for prolonging service life of precious metal temperature-sensing element |
| CN105300543A (en) * | 2015-11-03 | 2016-02-03 | 王少勇 | Long-life thermocouple for sulfur-producing burner |
| CN110646106A (en) * | 2019-10-14 | 2020-01-03 | 内蒙古科技大学 | Temperature detection device and system for rare earth molten salt electrolytic cell |
| CN110763362A (en) * | 2019-11-14 | 2020-02-07 | 中国计量科学研究院 | Pressure-controlled twisted platinum resistance thermometer |
| CN110763362B (en) * | 2019-11-14 | 2021-01-15 | 中国计量科学研究院 | Pressure-controlled twisted platinum resistance thermometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |