CN2046171U - High voltage insulation flange - Google Patents
High voltage insulation flange Download PDFInfo
- Publication number
- CN2046171U CN2046171U CN 88221088 CN88221088U CN2046171U CN 2046171 U CN2046171 U CN 2046171U CN 88221088 CN88221088 CN 88221088 CN 88221088 U CN88221088 U CN 88221088U CN 2046171 U CN2046171 U CN 2046171U
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- flange
- high voltage
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- insulation flange
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Abstract
The utility model relates to a high voltage insulation flange which is mainly used for the electrochemical corrosion protection of steel pipelines buried underground such as oil transportation pipelines, gas transportation pipelines, water injection pipelines, etc. The utility model is characterized in that the overpressure resistant gradation of the insulation flange is improved, and the performances of well sealing and electrical insulation are guaranteed at the same time. The utility model has artful design and convenient process, and the high voltage insulation flange has favorable effects in the engineering process, especially in the process of injecting nitrogen into oil field in the oil industry.
Description
The utility model relates to a kind of insulated flange, is mainly used in the electrochemical corrosion protection of the steel pipes such as oil transportation, gas transmission, water filling that bury ground.Because ducted medium has certain pressure, requires insulated flange except that having good sealing and electrical insulation capability, can also bear certain pressure.
Present domestic its extreme design pressure of the insulated flange that uses is 10MPa; The insulated flange extreme design pressure that U.S. HARCO company produces is 2500 pounds, the structure of these two kinds of insulated flanges all as shown in Figure 1, insulation spacer (3) is a plane.
In real work, need withstand voltage higher again insulated flange sometimes, notes nitrogen engineering as the oil field, nitrogen gas pressure reaches about 32MPa in the pipeline, use existing insulated flange not meet the demands, for addressing this problem, the utility model has proposed improvement on the internal structure of insulated flange, improved voltage withstand class.
Technical solution of the present utility model is a kind of insulated flange, form by flange (1), fastening piece (2), insulation spacer (3), fastening piece insulating bush (4), seal ring (5), short tube (6), it is characterized in that insulation spacer (3) makes the male and female face structure, with it the corresponding male and fomale(M﹠F) structure of making of the flange of Pei Heing (1).Like this, the pressure medium that is added on the insulation spacer (3) is reallocated at male and female face transition position A face, and a part of pressure is born by the convex surface of flange (1), has become structural capacity, so, improved the pressure that bears of insulation spacer (3).
Advantage of the present utility model has been to change the conventional structure of insulation spacer (3), under equivalent material, need not drop into the voltage withstand class that more funds can improve insulated flange exponentially.Insulation spacer behind the remodeling (3) is skillfully constructed, and is easy to process, and in engineering, especially using effect is fine in the notes nitrogen engineering of petroleum industry oil field.
Below in conjunction with accompanying drawing embodiment of the present utility model is illustrated:
Fig. 1 is the structural drawing of existing insulated flange.
Fig. 2 is a structural drawing of the present utility model.
Fig. 3 is the structural drawing of insulation spacer.
Wherein 1---flange; 2---fastening piece; 3---insulation spacer; 4---the fastening piece insulating bush; 5---seal ring; 6---short tube.
The material of insulation spacer (3) should have higher mechanical properties and electrical insulating property, and good machinability is arranged, and requiring has enough chemical stabilitys in the defeated medium of pipe, as phenolic aldehyde lamination fabric swatch, high strength phenolic aldehyde lamination fabric swatch, epoxy phenolic laminated glass fabric plate etc.The structural type of insulation spacer (3) is made the male and female face type, and different according to caliber and pressure are selected different male and female face sizes.In the present embodiment, pipeline drift diameter is φ 68mm, and insulation spacer protuberance external diameter is φ 152mm, and protuberance thickness is 24mm, and recess thickness is 12mm; The insulated flange that assembles is done the hydrostatic test, and test pressure is 64MPa, and according to the flange standard code, the flange of pressure below 35MPa, the pressure of the hydrostatic test are 2 times of nominal pressure, so present embodiment can bear the pressure of 32MPa.The structural type of flange (1) is made the male and fomale(M﹠F) form that adapts with insulation spacer (3), fastening piece (2), and fastening piece insulating bush (4), seal ring (5), short tube (6) is all identical with existing insulated flange.
Claims (1)
1, a kind of high voltage bearing insulated flange, form by flange (1), fastening piece (2), insulation spacer (3), fastening piece insulating bush (4), seal ring (5), short tube (6), it is characterized in that insulation spacer (3) makes the male and female face structure, with it the corresponding male and fomale(M﹠F) structure of making of the flange of Pei Heing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88221088 CN2046171U (en) | 1988-12-14 | 1988-12-14 | High voltage insulation flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88221088 CN2046171U (en) | 1988-12-14 | 1988-12-14 | High voltage insulation flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2046171U true CN2046171U (en) | 1989-10-18 |
Family
ID=4853183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88221088 Withdrawn CN2046171U (en) | 1988-12-14 | 1988-12-14 | High voltage insulation flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2046171U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100375858C (en) * | 2003-04-30 | 2008-03-19 | 因文思建筑系统公司 | Thermal isolator and controlled valve employing same |
| CN102927385A (en) * | 2012-10-29 | 2013-02-13 | 常州大学 | Design method for bolt flange connecting structure of homogeneous gasket |
| CN103016866A (en) * | 2012-10-29 | 2013-04-03 | 常州大学 | Design method of bolt flange connecting structure of non-homogeneous gasket |
| CN103063738A (en) * | 2012-12-19 | 2013-04-24 | 上海市特种设备监督检验技术研究院 | Detecting method of outer anti-corrosion layer of buried fuel gas steel pipeline |
| CN103438306A (en) * | 2013-08-23 | 2013-12-11 | 中国航天科技集团公司第六研究院第十一研究所 | Sealing device of electric heat transfer test pipe fitting |
| CN106015784A (en) * | 2016-06-26 | 2016-10-12 | 杨越 | Pipeline connector carried by unmanned ship |
-
1988
- 1988-12-14 CN CN 88221088 patent/CN2046171U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100375858C (en) * | 2003-04-30 | 2008-03-19 | 因文思建筑系统公司 | Thermal isolator and controlled valve employing same |
| CN102927385A (en) * | 2012-10-29 | 2013-02-13 | 常州大学 | Design method for bolt flange connecting structure of homogeneous gasket |
| CN103016866A (en) * | 2012-10-29 | 2013-04-03 | 常州大学 | Design method of bolt flange connecting structure of non-homogeneous gasket |
| CN103063738A (en) * | 2012-12-19 | 2013-04-24 | 上海市特种设备监督检验技术研究院 | Detecting method of outer anti-corrosion layer of buried fuel gas steel pipeline |
| CN103438306A (en) * | 2013-08-23 | 2013-12-11 | 中国航天科技集团公司第六研究院第十一研究所 | Sealing device of electric heat transfer test pipe fitting |
| CN103438306B (en) * | 2013-08-23 | 2016-08-24 | 中国航天科技集团公司第六研究院第十一研究所 | A kind of sealing device of fax heat test pipe fitting |
| CN106015784A (en) * | 2016-06-26 | 2016-10-12 | 杨越 | Pipeline connector carried by unmanned ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |