CN2101223U - Protective sleeve for thermal-couple thermometer - Google Patents
Protective sleeve for thermal-couple thermometer Download PDFInfo
- Publication number
- CN2101223U CN2101223U CN 91210709 CN91210709U CN2101223U CN 2101223 U CN2101223 U CN 2101223U CN 91210709 CN91210709 CN 91210709 CN 91210709 U CN91210709 U CN 91210709U CN 2101223 U CN2101223 U CN 2101223U
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- Prior art keywords
- protective casing
- protective sleeve
- thermal
- thermometer
- boiler tube
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- 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.)
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Abstract
The utility model relates to a protective sleeve for a thermal-couple thermometer on the steam pyrolysis furnace of a petrochemical industry field for measuring temperature in the furnace. The protective sleeve for a thermal-couple thermometer is characterized in that the fixing connections of the conical surface seal of an original protective sleeve and an original furnace tube seat and a flange plate are changed into the position of a straight hole and the fixation of a welded seal. The advantages of the utility model are that the protective sleeve for a thermal-couple thermometer reduces manufacturing cost, prolongs service life, and is convenient to install, maintain, and observe simultaneously.
Description
The utility model relates to the thermocouple thermometer protective casing that is used to measure oily stripping temperature in the boiler tube on a kind of steam cracking furnace of petrochemical industry.
The employed thermocouple thermometer protective casing of steam cracking furnace is the new product in the ethylene industry process units, and it uses the occasion at high-temperature high-flow rate below 1100 ℃, can measure the temperature of oil, vapour in the boiler tube for a long time continuously.The thermocouple thermometer protective casing is with the sealing of the conical surface and boiler tube seat, and with ring flange and bolt, the protective casing outside is covered with the pillar that prevents oil, vapour seepage in stove.Because the sealing between protective casing and the boiler tube seat can be subjected to machining precision; influence of various factors such as installation accuracy; as long as between protective casing and the boiler tube seat slit is arranged; high temperature oil in the stove; vapour will enter space between protective casing and the pillar along gap leakage; even enter protective casing inside; these oil; vapour forms oil behind high-temperature baking; the vapour cured layer; with thermometer; protective casing and pillar are shut; temperature in the stove is accurately measured in influence; cause boiler tube to burn; hardening crack; accidents such as furnace wall burns down take place, simultaneously protective casing; after pillar and thermometer are shut, can't keep in repair; can only all scrap, once promptly lose 5000 yuan.
It is a kind of high temperature resistant, wear-resisting that the purpose of this utility model is to provide, and do not have the thermocouple thermometer protective casing of oily vapour seepage.
Thermocouple thermometer protective casing of the present utility model by with the protective casing that is threaded with take over and form, is characterized in that protective casing and boiler tube seat locate with straight hole, and fixes with welded seal.In order to increase the rigidity of protective casing, also protective casing can be processed into step, its thicker section is located with straight hole with the boiler tube seat.That protective casing and adapter are selected for use is high temperature resistant, wear-resisting, contain chromium 18.5-21, and the chrome-nickel alloy of nickeliferous 31.5-34 is made.
The utility model has the advantages that to simplify the structure, be convenient to installation, maintenance and observation, reduce cost 50%, prolonged serviceable life, no oil leakage phenomenon.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the thermocouple thermometer protective casing of prior art.
Embodiment: referring to Fig. 1, thermocouple thermometer protective casing of the present utility model is made up of protective casing 1 and adapter 2, and its material is a chrome-nickel alloy 2032.Protective casing 1 head is spherical, and the upper end is a step, and itself and boiler tube seat 3 mating parts are of a size of φ 26mm, and top is φ 22mm.Take over 2 and be connected with taper thread with protective casing 1, taking over 2 other ends also is taper-thread.Boiler tube seat 3 is welded on stove navel 4 of boiler tube 5, and protective casing 1 is put in the boiler tube 5 by boiler tube seat 3, and fixes with welded seal, requires to use the welding rod welding approaching with protective casing 1 material, guarantees weld seam pore-free, flawless.Fig. 2 is the thermocouple thermometer protective casing of prior art, among the figure: 7 protective casings, 8 pillars, 9 adapters, 10 ring flanges, 6 furnace walls.
Claims (4)
1, a kind of thermocouple thermometer protective casing by forming with the protective casing 1 and the adapter 2 that are threaded, is characterized in that described protective casing 1 and boiler tube seat 3 with the straight hole location, with welded seal and fixing.
2, thermocouple thermometer protective casing according to claim 1 is characterized in that described protective casing 1 upper end is a step, and its thicker section is located with straight hole with boiler tube seat 3.
3, thermocouple thermometer protective casing according to claim 1 is characterized in that described protective casing 1 its head is for spherical.
4, thermocouple thermometer protective casing according to claim 1 is characterized in that described protective casing 1 and takes over 2 by containing chromium 18.5-21 that the chrome-nickel alloy of nickeliferous 31.5-34 is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91210709 CN2101223U (en) | 1991-06-10 | 1991-06-10 | Protective sleeve for thermal-couple thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91210709 CN2101223U (en) | 1991-06-10 | 1991-06-10 | Protective sleeve for thermal-couple thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2101223U true CN2101223U (en) | 1992-04-08 |
Family
ID=4919478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91210709 Withdrawn CN2101223U (en) | 1991-06-10 | 1991-06-10 | Protective sleeve for thermal-couple thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2101223U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387950C (en) * | 2005-09-23 | 2008-05-14 | 丁锡端 | Anti-hydrogen brittleness and anti-sulphidation attack hydrocracking special electric thermo-couple |
| CN102439712A (en) * | 2009-05-06 | 2012-05-02 | Asm美国股份有限公司 | Thermocouple and temperature measuring system |
| CN103446972A (en) * | 2013-08-20 | 2013-12-18 | 镇海石化工业贸易有限责任公司 | Improved structure of lower temperature measuring opening of polymerization kettle and polymerization kettle adopting same |
| US9267850B2 (en) | 2009-05-06 | 2016-02-23 | Asm America, Inc. | Thermocouple assembly with guarded thermocouple junction |
| US9297705B2 (en) | 2009-05-06 | 2016-03-29 | Asm America, Inc. | Smart temperature measuring device |
| CN105874308A (en) * | 2014-01-06 | 2016-08-17 | 株式会社神户制钢所 | Deterioration detector and thermocouple inspection device |
| CN104755916B (en) * | 2012-11-15 | 2016-12-28 | 株式会社神户制钢所 | Protection pipe deterioration sensing device and the method |
| CN107670605A (en) * | 2017-11-06 | 2018-02-09 | 常州大学 | The improved structure and polymeric kettle of the neighbouring chuck of temperature tube under a kind of polymeric kettle |
| CN108554536A (en) * | 2018-02-28 | 2018-09-21 | 安徽蓝德集团股份有限公司 | A kind of wear-resisting temperature transducer |
-
1991
- 1991-06-10 CN CN 91210709 patent/CN2101223U/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387950C (en) * | 2005-09-23 | 2008-05-14 | 丁锡端 | Anti-hydrogen brittleness and anti-sulphidation attack hydrocracking special electric thermo-couple |
| CN102439712A (en) * | 2009-05-06 | 2012-05-02 | Asm美国股份有限公司 | Thermocouple and temperature measuring system |
| US9267850B2 (en) | 2009-05-06 | 2016-02-23 | Asm America, Inc. | Thermocouple assembly with guarded thermocouple junction |
| US9297705B2 (en) | 2009-05-06 | 2016-03-29 | Asm America, Inc. | Smart temperature measuring device |
| CN104755916B (en) * | 2012-11-15 | 2016-12-28 | 株式会社神户制钢所 | Protection pipe deterioration sensing device and the method |
| CN103446972A (en) * | 2013-08-20 | 2013-12-18 | 镇海石化工业贸易有限责任公司 | Improved structure of lower temperature measuring opening of polymerization kettle and polymerization kettle adopting same |
| CN103446972B (en) * | 2013-08-20 | 2015-05-20 | 镇海石化工业贸易有限责任公司 | Improved structure of lower temperature measuring opening of polymerization kettle and polymerization kettle adopting same |
| CN105874308A (en) * | 2014-01-06 | 2016-08-17 | 株式会社神户制钢所 | Deterioration detector and thermocouple inspection device |
| CN105874308B (en) * | 2014-01-06 | 2018-09-25 | 株式会社神户制钢所 | Deterioration detecting apparatus and thermocouple check device |
| CN107670605A (en) * | 2017-11-06 | 2018-02-09 | 常州大学 | The improved structure and polymeric kettle of the neighbouring chuck of temperature tube under a kind of polymeric kettle |
| CN107670605B (en) * | 2017-11-06 | 2019-07-02 | 常州大学 | Temperature tube nearby the improvement structure of collet and has the polymeric kettle of this structure under polymeric kettle |
| CN108554536A (en) * | 2018-02-28 | 2018-09-21 | 安徽蓝德集团股份有限公司 | A kind of wear-resisting temperature transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |