CN201925466U - Dual sealing structure - Google Patents
Dual sealing structure Download PDFInfo
- Publication number
- CN201925466U CN201925466U CN2010206754584U CN201020675458U CN201925466U CN 201925466 U CN201925466 U CN 201925466U CN 2010206754584 U CN2010206754584 U CN 2010206754584U CN 201020675458 U CN201020675458 U CN 201020675458U CN 201925466 U CN201925466 U CN 201925466U
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- sealing
- metal flange
- sealing structure
- dual
- seal
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Abstract
The utility model belongs to a dual sealing structure, wherein two sealing grooves which are vertically arranged and have unequal section areas are arranged between a porcelain piece and a metal flange; two sealing rings are respectively arranged in the two sealing grooves; and the distance between the inner sealing ring and the outer sealing ring is not less than 5mm. A coated sealing adhesive layer and a coated waterproof adhesive layer are arranged the connected parts between the porcelain piece and the metal flange. According to the dual sealing structure, by adopting the structural design of dual sealing rings, the sealing property of an electrical appliance is greatly improved; and the dual sealing structure has the advantages of heat resistance, corrosion resistance, favorable sealing property, long service life and stable performance.
Description
Technical field
The utility model belongs to a kind of double sealing structure.
Background technique
Design of Sealing Structure be contain sulfur hexafluoride gas electrical equipment important basic design it, the quality of its performance has fundamental influence to the performance of product, here sealing configuration play dual parts to prevent sulfur hexafluoride gas from leaking and atmosphere in the moisture infiltration.In static seal, it is more that the sealing part of the joint between porcelain spare and the metal flange occurs, but sealing reliability herein is difficult for assurance, gas leakage and moisture often takes place infiltrate, the component that contains in the sulfur hexafluoride gas electrical equipment is corroded and damage, cause electrical equipment to scrap.Usually cause the reason of leaking to have two kinds herein: the one, surface of contact is gapped, and the 2nd, there is pressure reduction the seal ring both sides.It is to increase the compressibility of seal ring (generally getting 30%) herein that tradition is improved one's methods, but often because the excessive permanent deformation that causes seal ring of compressibility, make the phenomenon that sulfur hexafluoride gas leaks and moisture infiltrates happen occasionally, not only do not change the reliability of sealing, the working life of having reduced seal ring on the contrary.
Summary of the invention
The utility model purpose is a kind of double sealing structure of design, adopts the structural design of double density seal, and the sealing of electrical equipment is increased substantially, and has heat-resisting, corrosion-resistant, good airproof performance, the advantage of long service life and stable performance.For this reason, be provided with two between the utility model employing porcelain spare and the metal flange and be inside and outside distribution sectional area seal groove inequality, be respectively equipped with two seal rings in two seal grooves, the distance between inside and outside two seal rings is not less than 5mm.Be provided with between the joint of described porcelain spare and metal flange and be coated with sealant layer and painting water-proof adhesive layer.The said structure design has reached the purpose of this utility model.
The utility model has the advantages that to make electrical equipment sealing position, have heat-resisting, corrosion-resistant, good airproof performance, long service life and stable performance.That the utility model also has is simple in structure, placement can be installed easily, and user cost is low, long service life, using effect are good.
Description of drawings
Figure is the utility model structural representation.
Specific embodiments
As shown in the figure, a kind of double sealing structure mainly is made up of metal flange 3 and porcelain spare 6.Be provided with two between porcelain spare and the metal flange and be inside and outside distribution sectional area seal groove 4 inequality, the seal groove sectional area in the outside is greater than the seal groove sectional area of inboard, be respectively equipped with two seal rings 5 in two seal grooves, the sectional area that obviously is positioned at outside seal groove inner seal ring is greater than the sectional area that is positioned at inner seal groove inner seal ring.Distance between inside and outside two seal rings is not less than 5mm.For increasing the sealing of electrical equipment, be provided with between the joint of described porcelain spare and metal flange and be coated with sealant layer 1 and painting water-proof adhesive layer 2, the painting water-proof adhesive layer is established in the joint, outer end of porcelain spare and metal flange, and the inner joint of porcelain spare and metal flange is established and is coated with sealant layer.Be coated with sealant layer and painting water-proof adhesive layer and can effectively protect the outer naked metallic sealing section of seal ring not to be subjected to the corrosion of other media such as moisture, filth, avoided seal ring quick aging or damage to cause sealing effect to reduce, increased substantially sealing and working life.
In a word, the utility model adopts the structural design of Double seal ring, and the sealing of electrical equipment is increased substantially, and has heat-resisting, corrosion-resistant, good airproof performance, the advantage of long service life and stable performance. Can promote the use of.
Claims (2)
1. double sealing structure, mainly formed by metal flange and porcelain spare, it is characterized in that: be provided with two between porcelain spare and the metal flange and be inside and outside distribution sectional area seal groove inequality, be respectively equipped with two seal rings in two seal grooves, the distance between inside and outside two seal rings is not less than 5mm.
2. by the described a kind of double sealing structure of claim 1, it is characterized in that: be provided with between the joint of described porcelain spare and metal flange and be coated with sealant layer and painting water-proof adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206754584U CN201925466U (en) | 2010-12-13 | 2010-12-13 | Dual sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206754584U CN201925466U (en) | 2010-12-13 | 2010-12-13 | Dual sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925466U true CN201925466U (en) | 2011-08-10 |
Family
ID=44429315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206754584U Expired - Fee Related CN201925466U (en) | 2010-12-13 | 2010-12-13 | Dual sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925466U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736697A (en) * | 2015-12-09 | 2016-07-06 | 中国船舶重工集团公司第七二六研究所 | Watertight coating structure |
| CN106930944A (en) * | 2015-12-31 | 2017-07-07 | 华域三电汽车空调有限公司 | Sealing structure and its manufacture method |
| CN107035691A (en) * | 2016-02-03 | 2017-08-11 | 华域三电汽车空调有限公司 | Sealing structure |
| CN108180339A (en) * | 2018-03-10 | 2018-06-19 | 孙萍 | Double density sealing groove GIS corrugated expansion joint flanges |
| CN108400562A (en) * | 2018-03-10 | 2018-08-14 | 孙萍 | Double density sealing groove three-way body branch cartridge module |
| CN109790927A (en) * | 2016-09-23 | 2019-05-21 | 三电汽车部件株式会社 | The sealing structure of shell and fluid device including the sealing structure |
-
2010
- 2010-12-13 CN CN2010206754584U patent/CN201925466U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736697A (en) * | 2015-12-09 | 2016-07-06 | 中国船舶重工集团公司第七二六研究所 | Watertight coating structure |
| CN106930944A (en) * | 2015-12-31 | 2017-07-07 | 华域三电汽车空调有限公司 | Sealing structure and its manufacture method |
| CN107035691A (en) * | 2016-02-03 | 2017-08-11 | 华域三电汽车空调有限公司 | Sealing structure |
| CN109790927A (en) * | 2016-09-23 | 2019-05-21 | 三电汽车部件株式会社 | The sealing structure of shell and fluid device including the sealing structure |
| CN109790927B (en) * | 2016-09-23 | 2021-03-30 | 三电汽车部件株式会社 | Sealing structure of housing and fluid device including the same |
| CN108180339A (en) * | 2018-03-10 | 2018-06-19 | 孙萍 | Double density sealing groove GIS corrugated expansion joint flanges |
| CN108400562A (en) * | 2018-03-10 | 2018-08-14 | 孙萍 | Double density sealing groove three-way body branch cartridge module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20121213 |