CN202471281U - High-temperature corrosion-resistant thermoelectric couple special for sulfur recovery - Google Patents
High-temperature corrosion-resistant thermoelectric couple special for sulfur recovery Download PDFInfo
- Publication number
- CN202471281U CN202471281U CN201220124993XU CN201220124993U CN202471281U CN 202471281 U CN202471281 U CN 202471281U CN 201220124993X U CN201220124993X U CN 201220124993XU CN 201220124993 U CN201220124993 U CN 201220124993U CN 202471281 U CN202471281 U CN 202471281U
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- metal reinforcing
- temperature corrosion
- reinforcing sleeve
- resistant
- thermoelectric couple
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Abstract
The utility model discloses a high-temperature corrosion-resistant thermoelectric couple special for sulfur recovery, which comprises a junction box, a course flange and a metal reinforcing casing. The high-temperature corrosion-resistant thermoelectric couple special for sulfur recovery is characterized in that the junction box and the course flange are movably connected; the metal reinforcing casing is welded with the course flange; the metal reinforcing casing is internally provided with a thermoelectric couple wire; the metal reinforcing casing is internally provided with an outer protection casing and an inner protection casing sequentially; the thermoelectric couple wire is arranged in the inner protection casing and is in tight contact with the inner protection casing; and the outer protection casing and the inner protection casing are made of ceramic materials. The high-temperature corrosion-resistant thermoelectric couple special for sulfur recovery provided by the utility model is convenient to install, is convenient to maintain, is safe and reliable, and has long service life.
Description
Technical field
The utility model relates to a kind of sulphur recovery special-purpose high temperature corrosion resistant thermopair
Background technology
Sulfur recovery facility is an important ingredient in oil refining and the rock gas enterprise, and its main effect is to make element sulphur contained in the crude oil be able to recycle with the state of simple substance or some compound, to alleviate or to avoid its direct environmental pollution caused by discharge.The sour gas combustion furnace is considered to make most important equipment in the sulphur technology, 1100～1300 ℃ of burner hearth normal working temperatures, and peak temperature can reach 1600 ℃, and burner hearth contains Korrosionsmediums such as H2S, SO2.The operation factors that influences reacting furnace mainly comprises the setting of flame temperature, tracery wall, residing time in furnace, nozzles function etc.It is thus clear that control reacting furnace flame temperature is very important.
The major requirement of sulphur recovery special-purpose high temperature corrosion resistant thermopair is corrosion-resistant, the high temperature resistant response time that reaches short heat.There is following problem in existing thermopair: 1) the common metal sleeve pipe is at H
2Be corroded very soon in the Korrosionsmediums such as S, can't satisfy measurement requirement.2) common corundum pipe, though can reach high temperature resistant, corrosion-resistant requirement, impermeability and heat impact strength are poor, corrosive gas is prone to be penetrated in the sleeve pipe, the corrosion thermocouple wire, serviceable life, directly influence was kept the safety in production below 3 months.3) have the thermopair of blowning installation, utilize N2 in sleeve pipe, to keep certain pressure, isolate the discharging corrosive gas, prolong the serviceable life of thermopair, but the problem that exists is: indirect temperature-measuring, thermal response time is long, and displays temperature and actual temperature error are bigger; Have potential safety hazard, under the situation of casing collapse, toxic gases such as H2S are revealed through gas exhaust duct.
The utility model content
The technical matters that the utility model will solve provides that a kind of corrosion-and high-temp-resistant, thermometric are accurate, safe and reliable, the sulphur recovery special-purpose high temperature corrosion resistant thermopair of long service life, to change the existing existing problem of thermopair.
For reaching above-mentioned effect, the concrete technical scheme that adopts of the utility model is:
A kind of sulphur recovery special-purpose high temperature corrosion resistant thermopair comprises terminal box, process flange, it is characterized in that; Terminal box is connected with loose joint with the process flange; Also comprise the metal reinforcing sleeve, metal reinforcing sleeve and the welding of process flange are provided with thermocouple wire in the metal reinforcing sleeve.
Further, be provided with outside protective case and internal protective cover pipe in the metal reinforcing sleeve successively, thermocouple wire is arranged in the internal protective cover pipe and closely contact, and said outside protective case and internal protective cover pipe are ceramic material.
Top between said internal protective cover pipe, outside protective case and the metal reinforcing sleeve is filled with encapsulant; When inside and outside protective casing breaks, can effectively stop H
2The leakage of toxic gases such as S.
Under-filled high-temperature-resistant adhesive between said metal reinforcing sleeve and outside protective case; The filling position of high-temperature-resistant adhesive is below encapsulant.
Compared with prior art, the utility model has the advantages that:
1) its metal reinforcing sleeve and Process Method your beautiful writings adopt and are welded to connect, and sealing effectiveness is better.The metal reinforcing sleeve has been strengthened the whole physical strength of thermopair
2) inside and outside protective casing adopts special high temperature resistant, corrosion-resistant, porcelain bushing that heat impact strength is excellent, and thermopair adopts the direct temperature measurement formula, and thermal response time is fast, and thermometric is accurate.
3) the utility model is convenient to install, and is easy to maintenance, safe and reliable, long service life.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is that the B-B of Fig. 1 is to view.
Among the figure, 1-terminal box, 2-process flange, 3-metal reinforcing sleeve, 4-outside protective case, 5-internal protective cover pipe, 6-thermocouple wire, 7-high-temperature-resistant adhesive, 8-encapsulant, 9-loose joint.
Embodiment
As shown in Figure 1; A kind of sulphur recovery special-purpose high temperature corrosion resistant thermopair; Comprise terminal box 1, process flange 2, metal reinforcing sleeve 3, outside protective case 4, internal protective cover pipe 5, thermocouple wire 6, loose joint 9; Thermocouple wire 6 upper ends are connected with terminal box 1, the bottom pack in the internal protective cover pipe 5 and with its tight contact, shortening heat response time; Metal reinforcing sleeve 3 tops are connected with terminal box 1 through loose joint 9, and middle part and process flange 2 are through being welded to connect, and the welded structure sealing effectiveness is better, and the metal reinforced pipe has increased the whole physical strength of thermocouple thermometer.
As shown in Figure 2,4 under-filled high-temperature-resistant adhesives 7 of metal reinforcing sleeve 3 and outside protective case.
As shown in Figure 3, internal protective cover pipe 5, outside protective case 4 and 3 tops of metal reinforcing sleeve are filled with encapsulant 8, H when preventing casing collapse
2Toxic gases such as S can directly be discharged in the atmosphere.
Outside protective case 4, internal protective cover pipe 5 are special high temperature resistant, corrosion resistant stupalith, and impermeability and heat impact strength are excellent, can effectively stop H
2The infiltration of corrosive gass such as S is to the corrosion of thermocouple wire 6, thus the serviceable life of prolongation thermopair, the minimizing maintenance cost.
Claims (4)
1. a sulphur recovery special-purpose high temperature corrosion resistant thermopair comprises terminal box, process flange, it is characterized in that; Terminal box is connected with loose joint with the process flange; Also comprise the metal reinforcing sleeve, metal reinforcing sleeve and the welding of process flange are provided with thermocouple wire in the metal reinforcing sleeve.
2. sulphur recovery special-purpose high temperature corrosion resistant thermopair according to claim 1; It is characterized in that; Be provided with outside protective case and internal protective cover pipe in the metal reinforcing sleeve successively, thermocouple wire is arranged in the internal protective cover pipe and closely contact, and said outside protective case and internal protective cover pipe are ceramic material.
3. sulphur recovery special-purpose high temperature corrosion resistant thermopair according to claim 2 is characterized in that the top between said internal protective cover pipe, outside protective case and the metal reinforcing sleeve is filled with encapsulant.
4. sulphur recovery special-purpose high temperature corrosion resistant thermopair according to claim 3 is characterized in that under-filled high-temperature-resistant adhesive between said metal reinforcing sleeve and outside protective case; The filling position of high-temperature-resistant adhesive is below encapsulant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220124993XU CN202471281U (en) | 2012-03-29 | 2012-03-29 | High-temperature corrosion-resistant thermoelectric couple special for sulfur recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220124993XU CN202471281U (en) | 2012-03-29 | 2012-03-29 | High-temperature corrosion-resistant thermoelectric couple special for sulfur recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202471281U true CN202471281U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220124993XU Expired - Lifetime CN202471281U (en) | 2012-03-29 | 2012-03-29 | High-temperature corrosion-resistant thermoelectric couple special for sulfur recovery |
Country Status (1)
| Country | Link |
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| CN (1) | CN202471281U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784163A (en) * | 2016-03-10 | 2016-07-20 | 威卡自动化仪表（苏州）有限公司 | High-temperature thermocouple |
| CN106679835A (en) * | 2016-12-08 | 2017-05-17 | 苏州长风航空电子有限公司 | Armored thermocouple sensor |
| CN109556744A (en) * | 2018-12-13 | 2019-04-02 | 淄博益源工程技术有限公司 | A kind of antivibration spiral shape protection sleeve pipe |
| CN110582131A (en) * | 2019-09-20 | 2019-12-17 | 江苏欧展科技有限公司 | Electric heating element for preparing solar thin-film battery |
| CN114849816A (en) * | 2022-04-19 | 2022-08-05 | 中国重型机械研究院股份公司 | Super large specification superhigh pressure nozzle convection heat transfer test experiment platform |
-
2012
- 2012-03-29 CN CN201220124993XU patent/CN202471281U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784163A (en) * | 2016-03-10 | 2016-07-20 | 威卡自动化仪表（苏州）有限公司 | High-temperature thermocouple |
| CN106679835A (en) * | 2016-12-08 | 2017-05-17 | 苏州长风航空电子有限公司 | Armored thermocouple sensor |
| CN106679835B (en) * | 2016-12-08 | 2019-05-24 | 苏州长风航空电子有限公司 | A kind of armored thermocouple sensor |
| CN109556744A (en) * | 2018-12-13 | 2019-04-02 | 淄博益源工程技术有限公司 | A kind of antivibration spiral shape protection sleeve pipe |
| CN110582131A (en) * | 2019-09-20 | 2019-12-17 | 江苏欧展科技有限公司 | Electric heating element for preparing solar thin-film battery |
| CN114849816A (en) * | 2022-04-19 | 2022-08-05 | 中国重型机械研究院股份公司 | Super large specification superhigh pressure nozzle convection heat transfer test experiment platform |
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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 |
Granted publication date: 20121003 |