CN103671909B - Big Diameter Flange sealing device - Google Patents
Big Diameter Flange sealing device Download PDFInfo
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- CN103671909B CN103671909B CN201310677672.1A CN201310677672A CN103671909B CN 103671909 B CN103671909 B CN 103671909B CN 201310677672 A CN201310677672 A CN 201310677672A CN 103671909 B CN103671909 B CN 103671909B
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- flange
- lip seal
- seal ring
- upper flange
- projection
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
<b>The present invention relates to a kind of Big Diameter Flange sealing device. Flange is requisite vitals in pressure vessel, is widely used in the fields such as oil, chemical industry, metallurgy. The sealing problem of Big Diameter Flange is particularly important, but in Practical Project, Big Diameter Flange more easily leaks, and leakage part is caused by pad mostly, once leak, demounting bolt, lifting appliance are changed pad again can delay certain production cycle. The present invention's composition comprises</b><b>:?</b><b>Upper flange (1), described upper flange (1) lower end is provided with upper flange weldering lip seal ring (2), described upper flange weldering lip seal ring (2) lower end is provided with sealing gasket (3), described sealing gasket (3) lower end is provided with lower flange weldering lip seal ring (4), and described lower flange weldering lip seal ring (4) lower end is provided with lower flange (5). The present invention is for sealing for pressure vessels.</b>
Description
Technical field:
The present invention relates to a kind of Big Diameter Flange sealing device.
Background technology:
Flange is requisite vitals in pressure vessel, is widely used in the fields such as oil, chemical industry, metallurgy. The sealing problem of Big Diameter Flange is particularly important, but in Practical Project, Big Diameter Flange more easily leaks, and leakage part is caused by pad mostly, once leak, demounting bolt, lifting appliance are changed pad again can delay certain production cycle. Given this, the Big Diameter Flange of some equipment has adopted weldering lip seal, but the time marquis fault rate that the general device initial stage puts into operation is higher, directly adopt weldering lip seal to be difficult for maintenance, when therefore Big Diameter Flange sealing needs a kind of initial stage to put into operation all the time, convenient maintenance, later stage can complete a kind of project organization of maintenance at short notice when operation goes wrong.
Summary of the invention:
The object of the present invention is to provide a kind of Big Diameter Flange sealing device.
The object of the present invention is achieved like this:
A kind of Big Diameter Flange sealing device, its composition comprises: upper flange, described upper flange lower end is provided with upper flange weldering lip seal ring, described upper flange weldering lip seal ring lower end is provided with sealing gasket, described sealing gasket lower end is provided with lower flange weldering lip seal ring, and described lower flange weldering lip seal ring lower end is provided with lower flange.
Described Big Diameter Flange sealing device, described upper flange weldering lip seal ring is annular, there is recessing described upper flange weldering lip seal ring outer, the two ends height of projection of described groove is inconsistent, the projection of the upper end of described groove is lower than the height of projection of lower end, and the lower surface of described upper flange weldering lip seal ring has annular projection.
Described Big Diameter Flange sealing device, described lower flange weldering lip seal ring is annular, described lower flange weldering lip seal ring outer has groove, the two ends height of projection of described groove is inconsistent, the projection of the upper end of described groove is higher than the height of projection of lower end, the top face of described lower flange weldering lip seal ring has toroidal cavity, and described groove diameter is greater than the annular projection of upper flange weldering lip seal ring lower surface.
Described Big Diameter Flange sealing device, described upper flange weldering upper end, lip seal ring outer projection is welded on upper flange, and described lower flange weldering lower end, lip seal ring outer projection is welded on lower flange.
Beneficial effect:
1. the present invention adopts weldering lip seal to add the double sealing structure of sealing gasket, and weldering lip seal is for subsequent use, has solved the stability of Big Diameter Flange sealing.
2. of the present invention simple in structure, sealing effectiveness is good, ensures Housing Starts.
Brief description of the drawings:
Accompanying drawing 1 is structural representation of the present invention. In figure, A represents local magnification region, and 1 is upper flange, and 5 is lower flange.
Accompanying drawing 2 is partial enlarged drawings of a-quadrant in accompanying drawing 1. In figure, 1 is upper flange, and 2 is upper flange weldering lip seal ring, and 3 is sealing gasket, and 4 is lower flange weldering lip seal ring, and 5 is lower flange.
Accompanying drawing 3 is front views of 2 in accompanying drawing 1.
Accompanying drawing 4 is top views of accompanying drawing 3.
Accompanying drawing 5 is front views of 4 in accompanying drawing 1.
Accompanying drawing 6 is top views of accompanying drawing 5.
Detailed description of the invention:
Embodiment 1:
A kind of Big Diameter Flange sealing device, its composition comprises: upper flange 1, described upper flange 1 lower end is provided with upper flange weldering lip seal ring 2, described upper flange weldering lip seal ring 2 lower ends are provided with sealing gasket 3, described sealing gasket 3 lower ends are provided with lower flange weldering lip seal ring 4, and described lower flange weldering lip seal ring 4 lower ends are provided with lower flange 5.
Embodiment 2:
According to the Big Diameter Flange sealing device described in embodiment 1, described upper flange weldering lip seal ring 2 is annular, there is recessing described upper flange weldering lip seal ring 2 outers, the two ends height of projection of described groove is inconsistent, the projection of the upper end of described groove is lower than the height of projection of lower end, and the lower surface of described upper flange weldering lip seal ring 2 has annular projection.
Embodiment 3:
According to the Big Diameter Flange sealing device described in embodiment 1, described lower flange weldering lip seal ring 4 is annular, described lower flange weldering lip seal ring 4 outers have groove, the two ends height of projection of described groove is inconsistent, the projection of the upper end of described groove is higher than the height of projection of lower end, the top face of described lower flange weldering lip seal ring 4 has toroidal cavity, and described groove diameter is greater than the annular projection of upper flange weldering lip seal ring 2 lower surfaces.
Embodiment 4:
According to the Big Diameter Flange sealing device described in embodiment 1 and 2 and 3, described upper flange weldering lip seal ring 2 upper end, outer projections are welded on upper flange 1, and described lower flange weldering lip seal ring 4 lower end, outer projections are welded on lower flange 5.
Embodiment 5:
According to the Big Diameter Flange sealing device described in above-described embodiment, consider the installation of internals, the stability of reprocessing and moving for a long time, sealing structure has the function of gasket seal and seal weld simultaneously, but wants sealing surface structure reasonable in design and select satisfactory pad. Use under normal circumstances gasket structure, weldering lip seal is for subsequent use, adopts if desired seal weld (while occurring to leak as sealing gasket), switches efficient and conveniently, has ensured stable driving rate, is applicable in the flange connection of outbalance.
Claims (1)
1. a Big Diameter Flange sealing device, its composition comprises: upper flange, it is characterized in that: described upper flange lower end is provided with upper flange weldering lip seal ring, described upper flange weldering lip seal ring lower end is provided with sealing gasket, described sealing gasket lower end is provided with lower flange weldering lip seal ring, and described lower flange weldering lip seal ring lower end is provided with lower flange;
Described upper flange weldering lip seal ring is annular, there is recessing described upper flange weldering lip seal ring outer, the two ends height of projection of described groove is inconsistent, the projection of the upper end of described groove is lower than the height of projection of lower end, and the lower surface of described upper flange weldering lip seal ring has annular projection;
Described lower flange weldering lip seal ring is annular, described lower flange weldering lip seal ring outer has groove, the two ends height of projection of described groove is inconsistent, the projection of the upper end of described groove is higher than the height of projection of lower end, the top face of described lower flange weldering lip seal ring has toroidal cavity, described toroidal cavity diameter is greater than the annular projection of upper flange weldering lip seal ring lower surface, described upper flange weldering upper end, lip seal ring outer projection is welded on upper flange, and described lower flange weldering lower end, lip seal ring outer projection is welded on lower flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677672.1A CN103671909B (en) | 2013-12-13 | 2013-12-13 | Big Diameter Flange sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677672.1A CN103671909B (en) | 2013-12-13 | 2013-12-13 | Big Diameter Flange sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671909A CN103671909A (en) | 2014-03-26 |
| CN103671909B true CN103671909B (en) | 2016-05-11 |
Family
ID=50310319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310677672.1A Active CN103671909B (en) | 2013-12-13 | 2013-12-13 | Big Diameter Flange sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671909B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269840A (en) * | 2017-07-19 | 2017-10-20 | 航天长征化学工程股份有限公司 | Welding lip |
| IT201900004297A1 (en) * | 2019-03-25 | 2020-09-25 | Zilmet S P A | MODULAR FITTING FOR EXPANSION VESSELS |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5316320A (en) * | 1992-03-18 | 1994-05-31 | Corrosion Control Corp. | Isolation gasket for critical service flow line applications |
| CN200943788Y (en) * | 2006-08-28 | 2007-09-05 | 刘星海 | Impact-resistant high temperature-resistant elastic sealing member and flange matched with same |
| CN202203556U (en) * | 2011-09-06 | 2012-04-25 | 黄坤宇 | Novel quick flange |
| CN103644407A (en) * | 2013-12-11 | 2014-03-19 | 南京斯迈柯特种金属装备股份有限公司 | Double-sealing flange structure |
| CN203585309U (en) * | 2013-12-13 | 2014-05-07 | 哈尔滨锅炉厂责任有限公司 | Large-diameter flange sealing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000193161A (en) * | 1998-12-28 | 2000-07-14 | Ishikawajima Harima Heavy Ind Co Ltd | Lip seal welded flange |
-
2013
- 2013-12-13 CN CN201310677672.1A patent/CN103671909B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5316320A (en) * | 1992-03-18 | 1994-05-31 | Corrosion Control Corp. | Isolation gasket for critical service flow line applications |
| CN200943788Y (en) * | 2006-08-28 | 2007-09-05 | 刘星海 | Impact-resistant high temperature-resistant elastic sealing member and flange matched with same |
| CN202203556U (en) * | 2011-09-06 | 2012-04-25 | 黄坤宇 | Novel quick flange |
| CN103644407A (en) * | 2013-12-11 | 2014-03-19 | 南京斯迈柯特种金属装备股份有限公司 | Double-sealing flange structure |
| CN203585309U (en) * | 2013-12-13 | 2014-05-07 | 哈尔滨锅炉厂责任有限公司 | Large-diameter flange sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671909A (en) | 2014-03-26 |
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