CN209430796U - A kind of combined sealing structure of ball seat - Google Patents
A kind of combined sealing structure of ball seat Download PDFInfo
- Publication number
- CN209430796U CN209430796U CN201822273173.7U CN201822273173U CN209430796U CN 209430796 U CN209430796 U CN 209430796U CN 201822273173 U CN201822273173 U CN 201822273173U CN 209430796 U CN209430796 U CN 209430796U
- Authority
- CN
- China
- Prior art keywords
- seat
- seal
- valve
- sphere
- sealing structure
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 16
- 230000013011 mating Effects 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The utility model relates to a kind of combined sealing structures of ball seat, it includes sphere, valve deck, support plate, valve seat retaining ring, inner seat, outer seat, positioning pin；Triangular slot is offered in the mating surface of inner seat and is embedded with sealing ring；Sealing ring front end is equipped with seal joint and by being fixed between outer seat and inner seat, is provided with retaining ring between internal valve base rear end and valve deck；Retaining ring front end is fixed on inner seat, rear end is connected with spring；Spring rear end is fixed in the spring groove of valve deck.A kind of combined sealing structure of the ball seat of the utility model, first of primary seal is that metal to metal seals firmly, realize water-pressure sealed zero leakage, second auxiliary seal is soft seal, as high pressure hermetic seal auxiliary seal, energy effective compensation sphere deformation, realize high pressure hermetic seal zero leakage, third road auxiliary seal can effectively clear the foreign matter for being attached to spherome surface in switch, ensure valve normal switch；Solve the problems, such as valve site high pressure gas sealing leak.
Description
Technical field
The utility model relates to ball valve fields, more particularly to a kind of combined sealing structure of ball seat.
Background technique
In natural gas gas production and gas storage wellhead device, due to containing sand particle in acquisition natural gas, height is usually required that
Press hard seal ball valve.Traditional hard seal valve seat, the hard sealing of metal to metal are real by match grinding precision and higher seal pressure
It now seals, the deformation of processing and grinding precision and high pressure lower sphere due to sphere and valve seat, high pressure gas leakage test is very
Difficulty passes through, and heavy caliber high pressure hard seal ball valve high pressure gas sealing leak problem is more prominent, and valve site is poorly sealed to give pipeline
Biggish security risk is caused, the long-term safety operation of entire well head system is unfavorable for.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of combined sealing structure of ball seat, first
Primary seal is that metal to metal seals firmly, realizes water-pressure sealed zero, second auxiliary seal is soft seal, as high pressure hermetic seal
Auxiliary seal can effectively compensate sphere deformation, realize high pressure hermetic seal zero leakage, third road auxiliary seal, the energy in switch
The foreign matter for being attached to spherome surface is effectively removed, ensures valve normal switch；It is able to achieve primary assembly high pressure hermetic seal zero leakage,
Effectively valve repeated disassembled and assembled is avoided to reprocess grinding, solves the problems, such as valve site high pressure gas sealing leak.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of combination sealing knot of ball seat
Structure, it includes sphere, valve deck, support plate, valve seat retaining ring, inner seat, outer seat；The sphere is consolidated by upper and lower two support plates
Fixed, support plate passes through positioning pin and valve deck positioning assembly；The inner seat is arranged on the inside of valve deck, leading inside be provided with
The mating surface of sphere cooperation；The front end of the inner seat is additionally provided with outer seat；The leading inside of the outer seat be provided with
The mating surface of sphere cooperation；Triangular slot is offered in the mating surface of the inner seat；Sealing is embedded in the triangular slot
Circle；The front end of the sealing ring is provided with seal joint, and the seal joint is fixed between outer seat and inner seat, and
It is provided with the sealing surface with sphere cooperation；Retaining ring is provided between the rear end and valve deck of the inner seat；The front end of retaining ring is fixed
On inner seat, rear end be connected with spring；The rear end of the spring is fixed in the spring groove of valve deck.
O-ring is provided between the lateral surface and valve deck of the rear end of the inner seat.
Fire prevention graphite circle is provided between the lateral surface and valve deck of the retaining ring.
Fixed or screw is connected through a screw thread between the outer seat and inner seat to be connected and fixed.
The sealing ring is round sealing ring or triangular seal ring.
Sealing ring in the triangular slot is metal sealing, as first of primary seal, for realizing water-pressure sealed zero
Leakage.
It is soft close that the mating surface of the outer seat, inner seat, spring and outer seat and inner seat and sphere forms second
Envelope realizes high pressure hermetic seal zero leakage for compensating sphere deformation.
The seal joint is soft seal or the metal sealing of plastic construction, is used as third road auxiliary seal, for clear
Except the foreign matter for being attached to spherome surface, the normal switch of valve is realized.
The utility model has the beneficial effects that a kind of combined sealing structure of ball seat of the utility model, first of master
It is sealed into metal to metal to seal firmly, realizes water-pressure sealed zero leakage, second auxiliary seal is soft seal, airtight as high pressure
Auxiliary seal is sealed, sphere deformation can be effectively compensated, realizes high pressure hermetic seal zero leakage, third road auxiliary seal, in switch
It can effectively clear the foreign matter for being attached to spherome surface, ensure valve normal switch；Primary assembly high pressure hermetic seal zero is able to achieve to let out
Leakage, effectively avoids valve repeated disassembled and assembled from reprocessing grinding, solves the problems, such as valve site high pressure gas sealing leak.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the combined sealing structure of ball seat of embodiment；
Fig. 2 is a kind of schematic diagram of the amplification of the combined sealing structure of ball seat of embodiment.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.
Embodiment
As depicted in figs. 1 and 2, present embodiments provide a kind of combined sealing structure of ball seat, it include sphere 1,
Valve deck 2, support plate 3, valve seat retaining ring 4, inner seat 5, outer seat 6；The sphere 1 is fixed by upper and lower two support plates 3, support plate
3 pass through positioning pin 12 and the positioning assembly of valve deck 2；The setting of inner seat 5 is in 2 inside of valve deck, and leading inside is provided with and ball
The mating surface that body 1 cooperates；The front end of the inner seat 5 is additionally provided with outer seat 6；The leading inside of the outer seat 6 is provided with
The mating surface cooperated with sphere 1；Triangular slot is offered in the mating surface of the inner seat 5；It is embedded in the triangular slot
Sealing ring 8；The front end of the sealing ring 8 is provided with seal joint 7, and the seal joint 7 is between outer seat 6 and inner seat 5
It is fixed, and is provided with the sealing surface cooperated with sphere 1；Retaining ring 4 is provided between the rear end and valve deck 2 of the inner seat 5；
The front end of retaining ring 4 is fixed on inner seat 5, rear end is connected with spring 11；The rear end of the spring 11 is fixed on the spring of valve deck 2
In slot；O-ring 9 is provided between the lateral surface and valve deck 2 of the rear end of the inner seat 5；The lateral surface and valve deck of the retaining ring 4
Fire prevention graphite circle 10 is provided between 2；It is solid that the connection of fixed or screw is connected through a screw thread between the outer seat 6 and inner seat 5
It is fixed；The sealing ring 8 is round sealing ring or triangular seal ring；
A kind of combined sealing structure of ball seat of the present embodiment, the sealing ring 8 in the triangular slot are that metal is close
Envelope, as first of primary seal, for realizing water-pressure sealed zero leakage.
A kind of combined sealing structure of ball seat of the present embodiment, the outer seat 6, inner seat 5, spring 11 and outer
The mating surface of valve seat 6 and inner seat 5 and sphere forms second soft seal, for compensating sphere deformation, realizes high pressure hermetic seal
Zero leakage.
A kind of combined sealing structure of ball seat of the present embodiment, the seal joint 7 are the soft seal of plastic construction
Or metal sealing, the just normally opened of valve is realized for removing the foreign matter for being attached to spherome surface as third road auxiliary seal
It closes.
A kind of combined sealing structure of ball seat of the present embodiment, first of primary seal are that metal to metal seals firmly,
Realize water-pressure sealed zero leakage, second auxiliary seal is that soft seal can be compensated effectively as high pressure hermetic seal auxiliary seal
Sphere deformation, realizes high pressure hermetic seal zero leakage, and third road auxiliary seal can effectively clear in switch and be attached to spherome surface
Foreign matter, ensure valve normal switch；It is able to achieve primary assembly high pressure hermetic seal zero leakage, valve repeated disassembled and assembled is effectively avoided to return
Grinding is repaired, solves the problems, such as valve site high pressure gas sealing leak.
Above-described embodiment should not in any way limit the utility model, all by the way of equivalent replacement or equivalency transform
The technical solution of acquisition is all fallen in the protection scope of the utility model.
Claims (8)
1. a kind of combined sealing structure of ball seat, it is characterised in that: it include sphere, valve deck, support plate, valve seat retaining ring,
Inner seat, outer seat；The sphere is fixed by upper and lower two support plates, and support plate passes through positioning pin and valve deck positioning assembly；Institute
It states inner seat to be arranged on the inside of valve deck, leading inside is provided with the mating surface with sphere cooperation；The front end of the inner seat is also
It is provided with outer seat；The leading inside of the outer seat is provided with the mating surface with sphere cooperation；The mating surface of the inner seat
On offer triangular slot；Sealing ring is embedded in the triangular slot；The front end of the sealing ring is provided with seal joint, institute
It states seal joint to be fixed between outer seat and inner seat, and is provided with the sealing surface with sphere cooperation；The inner seat
Rear end and valve deck between be provided with retaining ring；The front end of retaining ring is fixed on inner seat, rear end is connected with spring；The spring
Rear end is fixed in the spring groove of valve deck.
2. a kind of combined sealing structure of ball seat according to claim 1, it is characterised in that: after the inner seat
O-ring is provided between the lateral surface and valve deck at end.
3. a kind of combined sealing structure of ball seat according to claim 1, it is characterised in that: the outside of the retaining ring
Fire prevention graphite circle is provided between face and valve deck.
4. a kind of combined sealing structure of ball seat according to claim 1, it is characterised in that: the outer seat with it is interior
Fixed or screw is connected through a screw thread between valve seat to be connected and fixed.
5. a kind of combined sealing structure of ball seat according to claim 1, it is characterised in that: the sealing ring is circle
Type sealing ring or triangular seal ring.
6. a kind of combined sealing structure of ball seat according to claim 5, it is characterised in that: in the triangular slot
Sealing ring be metal sealing, as first of primary seal, for realizing water-pressure sealed zero leakage.
7. a kind of combined sealing structure of ball seat according to claim 1, it is characterised in that: the outer seat, interior
The mating surface of valve seat, spring and outer seat and inner seat and sphere forms second soft seal, real for compensating sphere deformation
Existing high pressure hermetic seal zero leakage.
8. a kind of combined sealing structure of ball seat according to claim 1, it is characterised in that: the seal joint is
The soft seal of plastic construction or metal sealing are used as third road auxiliary seal, for removing the foreign matter for being attached to spherome surface,
Realize the normal switch of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273173.7U CN209430796U (en) | 2018-12-29 | 2018-12-29 | A kind of combined sealing structure of ball seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822273173.7U CN209430796U (en) | 2018-12-29 | 2018-12-29 | A kind of combined sealing structure of ball seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430796U true CN209430796U (en) | 2019-09-24 |
Family
ID=67975064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822273173.7U Active CN209430796U (en) | 2018-12-29 | 2018-12-29 | A kind of combined sealing structure of ball seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925452A (en) * | 2019-12-03 | 2020-03-27 | 中铁五局集团第一工程有限责任公司 | Engineering water supply system based on BIM |
-
2018
- 2018-12-29 CN CN201822273173.7U patent/CN209430796U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925452A (en) * | 2019-12-03 | 2020-03-27 | 中铁五局集团第一工程有限责任公司 | Engineering water supply system based on BIM |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209430796U (en) | A kind of combined sealing structure of ball seat | |
| CN201636338U (en) | Check valve for large-caliber power plant | |
| CN206592537U (en) | A kind of screw plug of draining the oil of the self-styled mechanism of band | |
| CN105221785A (en) | Novel self sealing fixing ball valve | |
| CN203286043U (en) | High-temperature wear-resisting hard sealing floating ball valve | |
| CN208595269U (en) | A kind of gas valve | |
| CN204004536U (en) | The three-flat ball valve that a kind of valve seat is adjustable | |
| CN207178761U (en) | A kind of valve base sealing structure of water-carriage system ball-valve dedicated | |
| CN206988623U (en) | A kind of deep basal pit ditch underground pipelines connect head | |
| CN202349289U (en) | High-pressure check valve | |
| CN109296755A (en) | Angie type hyperbaric oxygen air valve | |
| CN205064908U (en) | Novel ball valve is fixed in self sealss | |
| CN202629113U (en) | Rubber valve seat of butterfly valve | |
| CN208845345U (en) | A kind of easy-to-mount pump head of high pressure washing pump | |
| CN207687084U (en) | A kind of tandem mill bolt cylinder assembly | |
| CN207406558U (en) | Rotor seal anti-leakage valve | |
| CN208057963U (en) | High leakproofness low temperature butterfly valve | |
| CN207830575U (en) | A seating three-eccentric-butterfly-valve living | |
| CN206904268U (en) | A kind of gate valve | |
| CN207830571U (en) | Low temperature butterfly valve | |
| CN202371240U (en) | Soft seal safety valve | |
| CN201672115U (en) | High pressure gas safety valve | |
| CN219177012U (en) | Permanent magnet type safety valve | |
| CN202001660U (en) | Sealing surface structure of valve seat of lifting rod type spherical valve | |
| CN205423918U (en) | Bolt manner fixes ball valve seating structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215000 No.42, Guijia lane, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Harbin Electric Suzhou Dauson Valve Co.,Ltd. Country or region after: China Address before: 215000 No.42, Guijia lane, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: SUZHOU DOUSON VALVE CO.,LTD. Country or region before: China |