CN203645291U - Low-temperature glass encapsulation electric penetrating seal joint - Google Patents
Low-temperature glass encapsulation electric penetrating seal joint Download PDFInfo
- Publication number
- CN203645291U CN203645291U CN201320865886.7U CN201320865886U CN203645291U CN 203645291 U CN203645291 U CN 203645291U CN 201320865886 U CN201320865886 U CN 201320865886U CN 203645291 U CN203645291 U CN 203645291U
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- CN
- China
- Prior art keywords
- intermediate pressure
- pressure monitoring
- metal
- adpting flange
- cavity body
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- Expired - Fee Related
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Abstract
The utility model relates to a seal joint and especially relates to a low-temperature glass encapsulation electric penetrating seal joint. The low-temperature glass encapsulation electric penetrating seal joint comprises a metal connecting flange, insulators, glass seals and an intermediate pressure monitoring cavity body; and the metal connecting flange is connected with the intermediate pressure monitoring cavity body, relative positions of the metal connecting flange and the intermediate pressure monitoring cavity body are provided with penetrating holes, metal conductors penetrate the metal connecting flange and the intermediate pressure monitoring cavity body through the penetrating holes, insulators sleeve penetrating positions between the metal conductor and the metal connecting flange and between the metal conductor and the intermediate pressure monitoring cavity body, the metal connecting flange and the intermediate pressure monitoring cavity body are connected and then form an intermediate pressure monitoring cavity inside, and the glass seals are disposed at connecting portions between the metal conductor and the metal connecting flange and between the metal conductor and the intermediate pressure monitoring cavity body. According to the patent, the electric penetrating seal joint having a special structure are used at a connecting portion between a low-temperature cable in a pump and an external atmospheric side power cable, and flammable and explosive gases can be effectively prevented from leakage along the cables.
Description
Technical field
The utility model relates to a kind of housed joint, runs through housed joint especially for electric under low temperature environment.
Background technology
At present, produce in the conveying project of the cryogenic media such as alkane, alkene in LNG device and chemical plant installations and all need to use low temperature immersed pump for conveying and the loading/unloading vehicles etc. of cryogenic media as LNG receiving station, LNG liquefaction factory, LNG cargo ship, floating LNG liquefaction storage device, the methanation of coal tar furnace gas, because the cryogenic medias such as LNG, alkane, alkene have the characteristic of low temperature, inflammable, explosive and easy vaporization.Therefore carry the pump work inclement condition of this kind of medium, the each side such as material, sealing require very harsh, and equipment requirement has the reliable requirement of sealingly secure.Because design difficulty is large, manufacture and test difficulty, therefore, domestic this kind of low temperature immersed pump all relies on import at present, in foreign technology monopolization situation, occurs thus the problems such as valuable product, technical support do not catch up with.China, large-scale low-temperature immersed pump there is no pump manufacturer man and carries out research and production.Therefore,, for the electric seal nipple that runs through of the low temperature matching with low temperature immersed pump, domesticly manufacture without professional production producer.
Summary of the invention
For addressing the above problem, the utility model provides a kind of low temperature glass encapsulation the electric seal nipple that runs through, and solves the at present domestic electric problem that runs through seal nipple of low temperature not matching with low temperature immersed pump.
For achieving the above object, the utility model provides a kind of low temperature glass encapsulation the electric seal nipple that runs through, it comprises metal adpting flange, insulator, glass capsulation, intermediate pressure monitoring chamber cavity, described metal adpting flange is connected with intermediate pressure monitoring chamber cavity, metal adpting flange and intermediate pressure monitoring chamber cavity relative position are provided with through hole, metallic conductor runs through metal adpting flange and intermediate pressure monitoring chamber cavity by through hole, the metallic conductor that metallic conductor and metal adpting flange and intermediate pressure monitoring chamber cavity run through position is set with insulator outward, described metal adpting flange is the inner intermediate pressure monitoring chamber that forms after being connected with intermediate pressure monitoring chamber cavity, metallic conductor and metal adpting flange and intermediate pressure monitoring cavity junction, chamber are provided with glass capsulation.
Described intermediate pressure monitoring is provided with pressure-detecting device in chamber.
Described metal adpting flange is that the contact of end face compression is connected with intermediate pressure monitoring cavity junction, chamber.
Use the utility model effect remarkable: metallic conductor and the sealing of metal adpting flange junction mounting glass, prevent the leakage of inflammable and explosive medium along cable to junction box in pump, cryocable and outside atmosphere side power cable junction in pump, the electric seal nipple that runs through that adopts special construction, can effectively prevent that flammable explosive gas from leaking along cable.
The intermediate pressure annular seal space forming by metal adpting flange and intermediate pressure monitoring chamber cavity, whether setting pressure checkout gear in intermediate pressure stuffing box simultaneously, can detect in time and have dielectric gas to leak, and and alarm.Intermediate pressure annular seal space is filled inert gas, the harm to surrounding environment while reducing Leakage Gas.
Brief description of the drawings
Fig. 1 is the electric seal nipple position view that runs through of low temperature glass encapsulation;
Fig. 2 is the electric seal joint structure schematic diagram that runs through of low temperature glass encapsulation.
1-low temperature side power cable in figure, 2-atmospheric side power cable, the electric seal nipple that runs through of 3-low temperature glass encapsulation, 4-metallic conductor, 5-insulator, 6-metal adpting flange, 7-intermediate pressure monitoring chamber cavity, 8-glass capsulation.
Embodiment
As shown in Figure 2, the electric seal nipple that runs through of low temperature glass encapsulation, comprise metal adpting flange 6, insulator 5, glass capsulation 8, intermediate pressure monitoring chamber cavity 7, metal adpting flange 6 is connected with intermediate pressure monitoring chamber cavity, metal adpting flange 8 is provided with through hole with intermediate pressure monitoring chamber cavity 7 relative positions, metallic conductor 4 runs through metal adpting flange 6 and intermediate pressure monitoring chamber cavity 7 by through hole, metallic conductor 4 runs through position metallic conductor 4 cover insulation bodies 5 with metal adpting flange 6 and intermediate pressure monitoring chamber cavity 7, metal adpting flange 6 is the inner intermediate pressure monitoring chamber that forms after being connected with intermediate pressure monitoring chamber cavity 7, metallic conductor 4 is provided with glass capsulation 8 with metal adpting flange 6 and intermediate pressure monitoring cavity 7 junctions, chamber.
The electric seal nipple 3 that runs through of low temperature glass encapsulation is arranged between low temperature side power cable 1 and atmospheric side power cable 2, wherein metallic conductor 4 is motor power supply in holding vessel through metal adpting flange 6, metal adpting flange 6 cuts off storage liquid simultaneously, metallic conductor 4 and metal adpting flange 6 insulate by insulator 5, ensure electricly to run through the high voltage withstanding impact of seal nipple, and seal by glass insulation.
More reliable to the sealing of pumped (conveying) medium in pump for ensureing, between metal adpting flange 6 and metallic conductor 4, adopt the mode of glass-filled to seal, compared with conventional sealing gasket or ring structure, this kind of electric seal nipple that runs through of glass packaging is to temperature-insensitive, long service life, can realize the sealing reliably and with long-term under cold cycling operating mode, reach the effect of sealing gas.
For preventing that medium from leaking from middle pressure monitoring chamber cavity 7 and metal adpting flange 6 ends, hermetically-sealed construction flange face and intermediate pressure monitoring chamber cavity end contact, middle mounting O-shaped rings, adopts double-screw bolt, screw or bolted.
Whether leak for detecting the electric seal nipple that runs through, the present invention is designed with pressure detecting and uses hole in intermediate pressure monitoring chamber, in order to connect instrument and meter and the comparison of common electric power transfer joint, this kind of design can be more intuitively, more whether gas-monitoring leaks.
Intermediate pressure monitoring chamber cavity 7 is interior can also fill inert gas, inert gas pressure in intermediate cavity is lower than side medium gas pressure, higher than ambient pressure, pressure monitor table is housed in intermediate cavity, the leakage part on any one side can detect, harm surrounding environment being caused to reduce gas leakage.
The utility model is the electric production domesticization that runs through seal nipple of low temperature, and the thinking of offering reference is conducive to reduce the cost that low temperature immersed pump domesticizes; Be conducive to the application extension of low temperature immersed pump in the project such as alkanes and hydro carbons, be conducive to the lifting of domestic large-scale low-temperature immersed pump corollary equipment Design and manufacture level.
Claims (3)
1. the electric seal nipple that runs through of low temperature glass encapsulation, it is characterized in that: it comprises metal adpting flange, insulator, glass capsulation, intermediate pressure monitoring chamber cavity, described metal adpting flange is connected with intermediate pressure monitoring chamber cavity, metal adpting flange and intermediate pressure monitoring chamber cavity relative position are provided with through hole, metallic conductor runs through metal adpting flange and intermediate pressure monitoring chamber cavity by through hole, the metallic conductor that metallic conductor and metal adpting flange and intermediate pressure monitoring chamber cavity run through position is set with insulator outward, described metal adpting flange is the inner intermediate pressure monitoring chamber that forms after being connected with intermediate pressure monitoring chamber cavity, metallic conductor and metal adpting flange and intermediate pressure monitoring cavity junction, chamber are provided with glass capsulation.
2. the electric seal nipple that runs through of a kind of low temperature glass encapsulation according to claim 1, is characterized in that: described intermediate pressure monitoring is provided with pressure-detecting device in chamber.
3. the electric seal nipple that runs through of a kind of low temperature glass encapsulation according to claim 1 and 2, is characterized in that: described metal adpting flange is that the contact of end face compression is connected with intermediate pressure monitoring cavity junction, chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865886.7U CN203645291U (en) | 2013-12-02 | 2013-12-26 | Low-temperature glass encapsulation electric penetrating seal joint |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775623.7 | 2013-12-02 | ||
| CN201320775623 | 2013-12-02 | ||
| CN201320865886.7U CN203645291U (en) | 2013-12-02 | 2013-12-26 | Low-temperature glass encapsulation electric penetrating seal joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645291U true CN203645291U (en) | 2014-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320865886.7U Expired - Fee Related CN203645291U (en) | 2013-12-02 | 2013-12-26 | Low-temperature glass encapsulation electric penetrating seal joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203645291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633611A (en) * | 2013-12-26 | 2014-03-12 | 大连深蓝泵业有限公司 | Electric penetrating sealing joint for low temperature glass package |
| CN109859864A (en) * | 2018-11-27 | 2019-06-07 | 无锡海核装备科技有限公司 | A kind of liquid-seal type nuclear reactor safety shell electrical penetration |
-
2013
- 2013-12-26 CN CN201320865886.7U patent/CN203645291U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633611A (en) * | 2013-12-26 | 2014-03-12 | 大连深蓝泵业有限公司 | Electric penetrating sealing joint for low temperature glass package |
| CN109859864A (en) * | 2018-11-27 | 2019-06-07 | 无锡海核装备科技有限公司 | A kind of liquid-seal type nuclear reactor safety shell electrical penetration |
| CN109859864B (en) * | 2018-11-27 | 2024-03-26 | 无锡海核装备科技有限公司 | Liquid seal type nuclear reactor containment shell electric penetration piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20201226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |