CN208503462U - A kind of spiral wound gasket - Google Patents
A kind of spiral wound gasket Download PDFInfo
- Publication number
- CN208503462U CN208503462U CN201820334000.9U CN201820334000U CN208503462U CN 208503462 U CN208503462 U CN 208503462U CN 201820334000 U CN201820334000 U CN 201820334000U CN 208503462 U CN208503462 U CN 208503462U
- Authority
- CN
- China
- Prior art keywords
- steel band
- spiral wound
- wound gasket
- shaped
- arc
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims abstract description 3
- 239000004575 stone Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000002040 relaxant effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The application belongs to technical field of sealing technology, and in particular to a kind of spiral wound gasket.A kind of spiral wound gasket, including the steel band for winding, which is arranged flexible nonmetal material between adjacent steel band in the piece surface for needing damping.The remarkable result of the application is: being wound due to using C-shaped arc-shaped steel band, the stress of C-shaped circular arc is compared with V-arrangement, it is more uniformly stressed, do not allow to be also easy to produce stress concentration phenomenon, it can bear bigger pressure, therefore its decrement and rebound degree can be greatly improved, can compensate for relaxing greatly caused by violent temperature or pressure change, it is ensured that sealing performance.
Description
Technical field
The application belongs to technical field of sealing technology, and in particular to a kind of spiral wound gasket.
Background technique
Common spiral wound gasket structure using V-arrangement steel strip winding as shown in Figure 1, formed, the filling flexible between steel band
The nonmetallic materials such as graphite while spiral wound gasket has sealing performance, are also equipped with resilience under the action of V-arrangement steel band
Can, it can caused relaxation when changing of a small amount of compensation temperature or pressure working condition.
The structure has the disadvantage that:
1, due to the design feature of V-arrangement steel band, decrement generally can only achieve the 20%-30% or so of spacer thickness.Pressure
Contracting measured senior general and is crushed spiral wound gasket to lose sealing performance.
2, since decrement is smaller, so gasket resiliency is also relatively low.When temperature or violent pressure change, gasket
Slack will greatly increase.At this point, the springback capacity of this common spiral wound gasket is insufficient to compensate for violent temperature or pressure
Big relaxation, will lead to seal failure and leakage caused by variation.
Summary of the invention
The purpose of the application is in view of the drawbacks of the prior art, to provide a kind of spiral wound gasket structure, which significantly mentions
The high compressible amount and springback capacity of gasket, can compensate for relaxing greatly caused by violent temperature or pressure change, it is ensured that leakproofness
Energy.
The technical solution of the application is: a kind of spiral wound gasket, and including the steel band for winding, which is needing
Flexible nonmetal material is arranged between adjacent steel band in the piece surface of damping.
A kind of spiral wound gasket as described above, wherein the steel band is C-shaped arc-shaped steel band.
A kind of spiral wound gasket as described above, wherein the arc angle C of the C-shaped arc-shaped steel band 90 °~
Between 120 °.
A kind of spiral wound gasket as described above, wherein the flexible nonmetal material is soft graphite.
The remarkable result of the application is: being wound due to using C-shaped arc-shaped steel band, the stress and V-arrangement of C-shaped circular arc
It compares, is more uniformly stressed, it is not easy to generate stress concentration phenomenon, bigger pressure can be born, therefore can greatly improve
Its decrement and rebound degree can compensate for relaxing greatly caused by violent temperature or pressure change, it is ensured that sealing performance.
Detailed description of the invention
Fig. 1 spiral wound gasket structure in the prior art.
The improved C-shaped spiral wound gasket structure of Fig. 2.
In figure: 1 steel band；The nonmetallic materials such as 2 soft graphites.
Specific embodiment
The application is described further with reference to the accompanying drawing:
As shown in the picture, a kind of spiral wound gasket structure, steel band be C-shaped arc-shaped, arc angle C 90 °~120 ° it
Between, such as 90 °, 100 °, 110 °, 120 ° all can choose.The nonmetallic materials such as filling flexible graphite between steel band.
It realizes that technical characterstic of the invention has: being wound using C-shaped arc-shaped steel band, stress and the V-arrangement phase of C-shaped circular arc
Than being more uniformly stressed, it is not easy to generate stress concentration phenomenon, bigger pressure can be born, therefore it can be greatly improved
Decrement and rebound degree can compensate for relaxing greatly caused by violent temperature or pressure change, it is ensured that sealing performance.
Claims (3)
1. a kind of spiral wound gasket, it is characterised in that: including the steel band for winding, the steel strip winding is in the part for needing damping
Flexible nonmetal material is arranged between adjacent steel band in surface；
The steel band is C-shaped arc-shaped steel band.
2. a kind of spiral wound gasket as described in claim 1, it is characterised in that: the arc chord angle of the C-shaped arc-shaped steel band
C is spent between 90 °~120 °.
3. a kind of spiral wound gasket as claimed in claim 2, it is characterised in that: the flexible nonmetal material is flexible stone
Ink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820334000.9U CN208503462U (en) | 2018-03-12 | 2018-03-12 | A kind of spiral wound gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820334000.9U CN208503462U (en) | 2018-03-12 | 2018-03-12 | A kind of spiral wound gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208503462U true CN208503462U (en) | 2019-02-15 |
Family
ID=65295242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820334000.9U Expired - Fee Related CN208503462U (en) | 2018-03-12 | 2018-03-12 | A kind of spiral wound gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208503462U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259944A (en) * | 2018-03-12 | 2019-09-20 | 中核苏阀科技实业股份有限公司 | A kind of spiral wound gasket |
| CN111664252A (en) * | 2019-03-05 | 2020-09-15 | 中核苏阀科技实业股份有限公司 | Zigzag wound gasket |
-
2018
- 2018-03-12 CN CN201820334000.9U patent/CN208503462U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259944A (en) * | 2018-03-12 | 2019-09-20 | 中核苏阀科技实业股份有限公司 | A kind of spiral wound gasket |
| CN111664252A (en) * | 2019-03-05 | 2020-09-15 | 中核苏阀科技实业股份有限公司 | Zigzag wound gasket |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208503462U (en) | A kind of spiral wound gasket | |
| KR20140006241U (en) | Fishbone-like Helical Toothed Metallic Gasket | |
| CN203880094U (en) | Bidirectional pressure bearing lip-shaped sealing ring with U-shaped springs for energy storage | |
| CN107289135B (en) | A kind of compensation marine screw shaft sealing device of axial elasticity | |
| CN203670884U (en) | Hard seal ball valve with trapezoid graphite seal rings | |
| CN205802053U (en) | In assembled, the complete of floating plate compensates board-like resilient seal flange sealing oil-scraping device | |
| CN209671605U (en) | A kind of W-shaped spiral wound gasket | |
| CN110259944A (en) | A kind of spiral wound gasket | |
| CN104110498A (en) | Y-type seal ring | |
| CN103644297A (en) | Toothed composite pad with specially-shaped teeth and metal framework | |
| CN203686339U (en) | Rubber-metal composite diaphragm sealing device for valve system | |
| CN209909149U (en) | S-shaped wound gasket | |
| CN208997336U (en) | A kind of spiral wound gasket suitable for outer means of press seals | |
| CN208579024U (en) | A kind of packing seal structure of spandex production | |
| CN203488709U (en) | Press stopping device for metal gasket of integral metal boss | |
| CN202510830U (en) | Valve packing device capable of compensating in middle | |
| CN209818732U (en) | Zigzag wound gasket | |
| CN205802055U (en) | In assembled, the complete of floating plate compensates plate-type elastic seal arrangement for adjusting height | |
| CN110454572A (en) | A kind of spiral wound gasket suitable for outer means of press seals | |
| CN205605828U (en) | Sealed stable skeleton oil blanket of effect | |
| CN203628007U (en) | Composite packing seal structure | |
| CN204213363U (en) | High pressure butterfly valve | |
| CN209309046U (en) | A kind of cylinder piston head sealing structure | |
| CN111609134A (en) | W-shaped wound gasket | |
| CN111609133A (en) | S-shaped wound gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 |