CN102011864A - Rigid-flexible composite sealing ring - Google Patents
Rigid-flexible composite sealing ring Download PDFInfo
- Publication number
- CN102011864A CN102011864A CN 201010575190 CN201010575190A CN102011864A CN 102011864 A CN102011864 A CN 102011864A CN 201010575190 CN201010575190 CN 201010575190 CN 201010575190 A CN201010575190 A CN 201010575190A CN 102011864 A CN102011864 A CN 102011864A
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- Prior art keywords
- ring
- flexible end
- hard
- rigidity main
- soft compound
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- 238000007789 sealing Methods 0.000 title abstract description 13
- 239000002131 composite material Substances 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
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- Gasket Seals (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a rigid-flexible composite sealing ring. The sealing ring is characterized by mainly comprising a main rigid ring (1) and flexible end rings (2), wherein one flexible end ring (2) is fixedly arranged on each of two end faces of the main rigid ring (1); engaged concave convex structures (3) are arranged between joint surfaces of the main rigid ring (1) and the flexible end rings (2); and the thickness of the main rigid ring (1) is 3 to 5 times that of the flexible end ring (2). The sealing ring has the advantages of high strength and sealing property and rotates flexibly.
Description
Technical field
The present invention relates to a kind of high pressure sealing ring, the high pressure resistant seal ring that uses in the compensator of installing on especially a kind of chemical pipeline, the hard and soft compound seal ring that uses in the whirl compensator of installing on specifically a kind of chemical pipeline.
Background technique
At present, on the pipeline that petrochemical industry and power industry are used in order to adapt to the needs that expand with heat and contract with cold, be extensive use of all kinds of whirl compensators, high pressure resistant seal ring 6 is installed in whirl compensator, as shown in Figure 1, two end faces of this high pressure resistant seal ring 6 need bear very high pressure when being subjected to squeeze distortion and requirement can keep sealing in relative movement, common seal ring is owing to the relative movement that can't bear under the high pressure is easy under high pressure disintegrate embrittlement, do not have seal action, the highest compression resistance of all kinds of seal rings on the existing handbook generally is no more than 50MPa, when surpassing this pressure, must carry out the Specialty Design of sealing configuration, make manufacture cost greatly increase.
In order to make traditional seal ring can adapt to the needs of high pressure, people have expected that the method that increases the V-arrangement skeleton in seal ring improves its compression resistance, the multilayer skeleton laminates mutually and forms high-intensity seal ring, but because ducted pressure is very big, under high pressure conditions, can produce axial distortion, cause seal ring to arch upward, owing to be subjected to the restriction of mounting groove, strengthened the frictional force between seal ring and the pipeline, make and to rotate between whirl compensator and the pipeline, when serious even can produce destruction to pipeline, therefore making seal ring keep higher rigidity when guaranteeing end face seal is the key that solves the high voltage terminal face seal.
Summary of the invention
The objective of the invention is to exist intensity not high, easily produce the problem of holding tube, design a kind of hard and soft compound seal ring, to solve the needs of high pressure sealing at the end face sealing ring in the existing high pressure pipe line whirl compensator.
Technological scheme of the present invention is:
A kind of hard and soft compound seal ring, it is characterized in that it is mainly combined by rigidity main ring 1 and flexible end ring 2, the both ends of the surface of rigidity main ring 1 respectively are installed with a flexible end ring 2 by extruding or bonding, be provided with the concaveconvex structure 3 of mutual interlock between the junction plane of rigidity main ring 1 and flexible end ring 2, the thickness of described rigidity main ring 1 is 3-5 times of flexible end ring 2 thickness.
Described concaveconvex structure 3 is made up of the groove of rigidity main ring 1 end face and the boss of flexible end ring 2 end faces.
Groove in the described concaveconvex structure 3 is concave arc shape or zigzag structure, and the boss in the corresponding concaveconvex structure 3 is convex or zigzag structure; The degree of depth of described groove is the 2-5 millimeter.
Described rigidity main ring 1 is a kind of in stainless steel ring, extraordinary steel loop, alloy steel loop or the hard ceramic ring, and described flexible end ring 2 is a kind of in rubber ring, titanium fibrage ring or the Expanded graphite.
The compressive strength of described Expanded graphite is not less than 300MPa, and the order number is 30 orders.
Be lined with steel wire 4 in the described flexible end ring 2.
The endoporus two ends of described rigidity main ring 1 are equipped with arc transition section 5.
Beneficial effect of the present invention:
The present invention has fundamentally solved the difficult problem of sealing and resistance to deformation, because the rigidity main ring is high voltage bearing rigid material, in use can not produce distortion, and the end ring that mainly seals is because volume is less, even distortion can not produce relatively rotating between too big frictional force restriction whirl compensator and the pipeline yet, simultaneously because the endoporus of rigidity main ring is provided with circular arc chamfering, can receive the material of the flexible end ring after part is out of shape, can further reduce the frictional force between flexible end ring and the pipe surface, can keep for a long time rotating flexibly.
The present invention is simple in structure, and is easily manufactured, and the end face processing request of rigidity main ring is low, than the seal ring of laminated structure, its manufacture cost can reduce more than 50%, and its voltage endurance capability can reach more than 300 MPas, applied range can be widely used in the sealing of all kinds of high pressure active face.
Description of drawings
Fig. 1 is the structural representation of existing whirl compensator.
Fig. 2 is a structural representation of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
A kind of hard and soft compound seal ring, it is mainly combined by rigidity main ring 1 and flexible end ring 2, rigidity main ring 1 can be stainless steel ring, extraordinary steel loop, a kind of in alloy steel loop or the hard ceramic ring, flexible end ring 2 can be rubber ring, a kind of in titanium fibrage ring or the Expanded graphite, in order to improve the intensity of flexible end ring, be preferably in during concrete enforcement and wherein increase stainless steel steel wire 4, the number of plies of steel wire 4 depends on the thickness of flexible end ring 2, be generally about five layers, if when adopting Expanded graphite as flexible end ring, its compressive strength should be not less than 300MPa, and the order number can be about 30 orders.The both ends of the surface of rigidity main ring 1 can link to each other with flexible end ring 2 by the method for extruding or bonding, in order to improve join strength, preferred design becomes the concaveconvex structure 3 of mutual interlock between the junction plane of rigidity main ring 1 and flexible end ring 2, concaveconvex structure 3 preferably is made up of the groove of rigidity main ring 1 end face and the boss of flexible end ring 2 end faces, groove in the concaveconvex structure 3 can be concave arc shape or zigzag structure, and the boss in the corresponding concaveconvex structure 3 is convex or zigzag structure; The degree of depth of described groove can be the 2-5 millimeter.In order to guarantee resistance to pressure, the 3-5 that the thickness of rigidity main ring 1 should be flexible end ring 2 thickness doubly, as the both ends of the surface of the stainless steel main ring of 20 millimeters thick a thickness can be installed respectively is 5 millimeters Expanded graphite end ring.For the ease of taking in the deformable material of the flexible end ring after the distortion, the endoporus two ends of rigidity main ring 1 should be designed to have the structure of arc transition section 5 when specifically implementing, and the radius of arc transition section 5 is generally the 2-5 millimeter.As shown in Figure 2.
Fig. 1 is a concrete application examples of the present invention.The seal ring of the whirl compensator on the buried conveyance conduit of the petrochemical industry among Fig. 1 requires end face seal, high pressure resistant, adopting thickness of the present invention is behind 25 millimeters the seal ring, in when manifold pressure increases to 300MPa, making after testing pipe and outer tube relatively rotate 1000 times (can) after still do not have leakage, can guarantee normally use of conveyance conduit 100 years.
Seal ring of the present invention both can be used for the pipeline whirl compensator of petrochemical industry, also can be used for other similar relative movement type circumference sealing occasion that high pressure requirement is arranged.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (7)
1. hard and soft compound seal ring, it is characterized in that it is mainly combined by rigidity main ring (1) and flexible end ring (2), the both ends of the surface of rigidity main ring (1) respectively are installed with a flexible end ring (2), be provided with the concaveconvex structure (3) of mutual interlock between the junction plane of rigidity main ring (1) and flexible end ring (2), the thickness of described rigidity main ring (1) is 3-5 times of flexible end ring (2) thickness.
2. hard and soft compound seal ring according to claim 1 is characterized in that described concaveconvex structure (3) is made up of the groove of rigidity main ring (1) end face and the boss of flexible end ring (2) end face.
3. hard and soft compound seal ring according to claim 1 and 2 is characterized in that the groove in the described concaveconvex structure (3) is concave arc shape or zigzag structure, and the boss in the corresponding concaveconvex structure (3) is convex or zigzag structure; The degree of depth of described groove is the 2-5 millimeter.
4. hard and soft compound seal ring according to claim 1, it is characterized in that a kind of in stainless steel ring, extraordinary steel loop, alloy steel loop or the hard ceramic ring of described rigidity main ring (1), described flexible end ring (2) is a kind of in rubber ring, titanium fibrage ring or the Expanded graphite.
5. hard and soft compound seal ring according to claim 4 is characterized in that the compressive strength of described Expanded graphite is not less than 300MPa.
6. according to claim 1 or 4 described hard and soft compound seal rings, it is characterized in that being lined with in the described flexible end ring (2) steel wire (4).
7. hard and soft compound seal ring according to claim 1 is characterized in that the endoporus two ends of described rigidity main ring (1) are equipped with arc transition section (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010575190 CN102011864A (en) | 2010-08-30 | 2010-12-07 | Rigid-flexible composite sealing ring |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010266675.2 | 2010-08-30 | ||
| CN201010266675 | 2010-08-30 | ||
| CN 201010575190 CN102011864A (en) | 2010-08-30 | 2010-12-07 | Rigid-flexible composite sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102011864A true CN102011864A (en) | 2011-04-13 |
Family
ID=43842144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010575190 Pending CN102011864A (en) | 2010-08-30 | 2010-12-07 | Rigid-flexible composite sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102011864A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130193A (en) * | 2013-03-25 | 2013-06-05 | 北京乾润开元环保科技有限公司 | Seal assembly of ozone generator |
| CN104266459A (en) * | 2014-09-15 | 2015-01-07 | 常州麟喃热处理厂 | Anticorrosion boiling drier |
| CN104565377A (en) * | 2013-10-23 | 2015-04-29 | 上海航天设备制造总厂 | High-pressure end face sealing structure |
| CN106122476A (en) * | 2014-07-30 | 2016-11-16 | 丁永新 | Sealing drilled packing ring and production method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033475A (en) * | 1987-12-11 | 1989-06-21 | 巴布考克和威尔科斯公司 | Flat laminated seal ring |
| US5645284A (en) * | 1993-06-12 | 1997-07-08 | Flexitallic Limited | Gasket |
| CN2800028Y (en) * | 2004-12-14 | 2006-07-26 | 袁柏峰 | Sealing pad |
| CN101260939A (en) * | 2008-04-15 | 2008-09-10 | 宋章根 | Four side pressurized sealed high pressure resistant sealed ring possessing framework |
| CN101545539A (en) * | 2009-05-12 | 2009-09-30 | 宋章根 | Special high-strength wear-resistant sealing ring of high pressure resistant self-sealing rotary compensator |
-
2010
- 2010-12-07 CN CN 201010575190 patent/CN102011864A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033475A (en) * | 1987-12-11 | 1989-06-21 | 巴布考克和威尔科斯公司 | Flat laminated seal ring |
| US5645284A (en) * | 1993-06-12 | 1997-07-08 | Flexitallic Limited | Gasket |
| CN2800028Y (en) * | 2004-12-14 | 2006-07-26 | 袁柏峰 | Sealing pad |
| CN101260939A (en) * | 2008-04-15 | 2008-09-10 | 宋章根 | Four side pressurized sealed high pressure resistant sealed ring possessing framework |
| CN101545539A (en) * | 2009-05-12 | 2009-09-30 | 宋章根 | Special high-strength wear-resistant sealing ring of high pressure resistant self-sealing rotary compensator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103130193A (en) * | 2013-03-25 | 2013-06-05 | 北京乾润开元环保科技有限公司 | Seal assembly of ozone generator |
| WO2014154066A1 (en) * | 2013-03-25 | 2014-10-02 | 北京乾润开元环保科技有限公司 | Ozone generator sealing assembly |
| CN103130193B (en) * | 2013-03-25 | 2015-07-08 | 北京乾润开元环保科技有限公司 | Seal assembly of ozone generator |
| CN104565377A (en) * | 2013-10-23 | 2015-04-29 | 上海航天设备制造总厂 | High-pressure end face sealing structure |
| CN106122476A (en) * | 2014-07-30 | 2016-11-16 | 丁永新 | Sealing drilled packing ring and production method thereof |
| CN106122476B (en) * | 2014-07-30 | 2017-11-21 | 洪兰英 | A kind of low-friction coefficient sealing drilled packing ring |
| CN104266459A (en) * | 2014-09-15 | 2015-01-07 | 常州麟喃热处理厂 | Anticorrosion boiling drier |
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Application publication date: 20110413 |