CN106151574A - Ultra-low temperature ball valve valve base sealing structure - Google Patents
Ultra-low temperature ball valve valve base sealing structure Download PDFInfo
- Publication number
- CN106151574A CN106151574A CN201610687968.5A CN201610687968A CN106151574A CN 106151574 A CN106151574 A CN 106151574A CN 201610687968 A CN201610687968 A CN 201610687968A CN 106151574 A CN106151574 A CN 106151574A
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- China
- Prior art keywords
- valve
- ultra
- low temperature
- valve seat
- sealing structure
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- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Sealing Devices (AREA)
Abstract
Ultra-low temperature ball valve valve base sealing structure.The valve seat movable sealing mainly solving current ultra-low temperature ball valve is unstable, the lip circle service life of wearing and tearing at valve opening with when closing, the final problem reducing valve service life.The present invention provides ultra-low temperature ball valve valve base sealing structure, it is provided with in its valve body and seals the spheroid and valve seat coordinated, valve seat circumferential edge is provided with resilient film section, valve seat is arranged on valve body and film section coordinates with valve seal by film section is the most telescopic, valve seat relies on spring supporting circle to press to spheroid and realize the sealing of spheroid and valve seat on the basis of natural resiliency, low cost, seals reliable, it is easy to accomplish mass production.
Description
Technical field
The present invention relates to ball valve field, be specifically related to ultra-low temperature ball valve valve base sealing structure.
Background technology
Along with the growth in LNG market, it liquefies, transports and store up standby, the revaporization equipment of arranging, as liquefaction plant, LNG receive
Stand, LNG tank car, LNG cargo ship (imported L NG), LNG gas holder station etc. are developed rapidly, and the low-temperature liquefaction being applied to LNG is natural
Air valve demand is in fast-developing trend.Comprehensive various statistics shows, national cryogenic valve annual requirement in 2015
About 35000, count more than 28,000 ten thousand dollars.Its market scenario is the most good.The most international LNG Subzero valve market potential is bigger,
The annual needs having multi-billion dollar.
But the valve seat of current ultra-low temperature ball valve is unstable in valve movable sealing, can wear and tear during opening and closing lip circle
In service life, cause reducing valve service life.
Summary of the invention
In order to overcome the deficiency of background technology, the present invention provides ultra-low temperature ball valve valve base sealing structure, mainly solves mesh
Before the valve seat movable sealing of ultra-low temperature ball valve unstable, the lip circle service life of wearing and tearing at valve opening with when closing, finally
The problem reducing valve service life.
The technical solution adopted in the present invention is:
Ultra-low temperature ball valve valve base sealing structure, including valve body, is provided with in described valve body and seals the spheroid and valve seat, described valve coordinated
Seat circumferential edge be provided with resilient film section, described valve seat by film section the most telescopic be arranged on described valve body and
Described film section coordinates with described valve seal.
Also include that the fastening assembly for being pressed on described valve body by described film section, described fastening assembly include pressing plate
Circle and trip bolt, described pressure plate loop is arranged on described valve body by trip bolt, and described pressure plate loop is by described film section end
Top, portion is pressed on described valve body.
Also include that telescopic elastic pusher, described elastic pusher are located between described valve seat and described valve body and with described
Valve seat back compresses cooperation.
Described elastic pusher is connected with described valve body by elastic component, deposits between described elastic pusher and described valve body
In the first gap.
Described elastic component is spring.
It is additionally provided with sealing ring group on described film section and the described contact surface of valve seat.
Described sealing ring group includes being located at the PCTFE pad of inner ring and being located at the Graphite pad of outer ring.
Described valve seat also includes pedestal portion, being provided with between described elastic pusher inner circumferential wall and described pedestal portion peripheral outer wall
Second gap.
The invention has the beneficial effects as follows: the present invention provides ultra-low temperature ball valve valve base sealing structure, in its valve body, be provided with sealing
The spheroid coordinated and valve seat, valve seat circumferential edge is provided with resilient film section, and valve seat passes through the axial telescopic peace of film section
Be contained on valve body and film section coordinate with valve seal, valve seat rely on spring supporting circle to press to spheroid on the basis of natural resiliency and
Realize the sealing of spheroid and valve seat, low cost, seal reliable, it is easy to accomplish mass production.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of one embodiment of the invention.
Fig. 2 is the schematic diagram of the valve seat of one embodiment of the invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings: as it can be seen, ultra-low temperature ball valve valve base sealing structure, including
Valve body 1, is provided with in described valve body 1 and seals the spheroid 2 and valve seat 3 coordinated, and described valve seat 3 circumferential edge is provided with resilient thin film
Portion 31, described valve seat 3 is arranged on described valve body 1 and described film section 31 and described valve by film section 31 is the most telescopic
Body 1 seals and coordinates.The present invention provides ultra-low temperature ball valve valve base sealing structure, is provided with and seals the spheroid and valve coordinated in its valve body
Seat, valve seat circumferential edge is provided with resilient film section, and valve seat is arranged on valve body and thin by film section is the most telescopic
Film portion coordinates with valve seal, and valve seat relies on spring supporting circle to press to spheroid and realize spheroid and valve seat on the basis of natural resiliency
Sealing, low cost, seal reliable, it is easy to accomplish mass production.Rely on the two seals pad between valve seat and valve body, logical
Cross pressure plate loop to compress and realize sealing, and valve seat do not moves back and forth, it is to avoid the abrasion of sealing member.This valve seat relies on valve seat self
Deformation, in addition spring pre-tightening realizes the sealing of spheroid and valve seat, seals, between valve seat and valve body, the compression relying on pressure plate loop
Realizing sealing, radial seal be converted to end seal, this kind of sealing is easy to process, it is easy to mass production, and can disobey
Depend on lip-type packing to realize the sealing between valve seat and valve body, greatly reduce cost.This valve seat is at original metal foundation
On side process one can provide enough deformation metal foil diaphragm, by diaphragm end compress in the case of, valve
Seat self can produce certain deflection, the most i.e. achieves the static sealing between valve seat and valve body, in turn ensure that valve seat energy
Enough produce movement.
In the present embodiment, as it can be seen, also include the fastening for being pressed on described valve body 1 by described film section 31
Assembly 32, described fastening assembly 32 includes pressure plate loop 321 and trip bolt 322, and described pressure plate loop 321 is by trip bolt 322
Being arranged on described valve body 1, top, described film section 31 end is pressed on described valve body 1 by described pressure plate loop 321.
In the present embodiment, as it can be seen, also include telescopic elastic pusher 5, described elastic pusher 5 is located at described valve
Compress between seat 3 and described valve body 1 and with described valve seat 3 back and coordinate.Compensation sealing is realized by elastic pusher,
In the present embodiment, as it can be seen, described elastic pusher 5 is connected with described valve body 1 by elastic component 51, described elasticity pushes away
The first gap 52 is there is between plate 5 and described valve body 1.There is certain interval between spring supporting circle 6 and valve body 8, ensure
The reciprocal thin tail sheep of valve seat moves.Will not damage sealing member and achieve compensation sealing, simple in construction, using effect is good.
In the present embodiment, as it can be seen, described elastic component 51 is spring.May be otherwise other elastic components of employing, than
Such as disc spring, shell fragment etc., spring cost is relatively low, it is simple to obtain.
In the present embodiment, as it can be seen, be additionally provided with sealing ring group on described film section 31 and described valve seat 3 contact surface
33。
In the present embodiment, as it can be seen, described sealing ring group 33 includes the PCTFE pad 331 being located at inner ring and is located at
The Graphite pad 332 of outer ring.It is PCTFE gasket seal together, is graphite sealing gasket together, fine by two gasket seals
Achieve the static sealing before valve seat and valve body, good sealing effect.
In the present embodiment, as it can be seen, described valve seat 3 also includes pedestal portion 34, described elastic pusher 5 inner circumferential wall with
It is provided with the second gap 55 between described pedestal portion 34 peripheral outer wall.Certain sky was provided valve seat is radially subjected to displacement when
Between, reduce abrasion, increase service life.
Embodiment is not construed as limitation of the present invention, but any spiritual improvements introduced based on the present invention, all should be
Within protection scope of the present invention.
Claims (8)
1. ultra-low temperature ball valve valve base sealing structure, including valve body (1), be provided with in described valve body (1) seal the spheroid (2) coordinated and
Valve seat (3), it is characterised in that: described valve seat (3) circumferential edge is provided with resilient film section (31), and described valve seat (3) passes through
Film section (31) is the most telescopic is arranged on that described valve body (1) is upper and described film section (31) is joined with described valve body (1) sealing
Close.
Ultra-low temperature ball valve valve base sealing structure the most according to claim 1, it is characterised in that: also include for by described thin
Film portion (31) is pressed on the fastening assembly on described valve body (1), and described fastening assembly includes pressure plate loop (321) and trip bolt
(322), described pressure plate loop (321) is arranged on described valve body (1) by trip bolt (322), and described pressure plate loop (321) is by institute
State top, film section (31) end to be pressed on described valve body (1).
Ultra-low temperature ball valve valve base sealing structure the most according to claim 1, it is characterised in that: also include telescopic elasticity
Push pedal (5), described elastic pusher (5) is located between described valve seat (3) and described valve body (1) and is supported with described valve seat (3) back
Press-fit.
Ultra-low temperature ball valve valve base sealing structure the most according to claim 3, it is characterised in that: described elastic pusher (5) leads to
Cross elastic component (51) to be connected with described valve body (1), exist between first between described elastic pusher (5) and described valve body (1)
Gap (52).
Ultra-low temperature ball valve valve base sealing structure the most according to claim 4, it is characterised in that: described elastic component (51) is bullet
Spring.
Ultra-low temperature ball valve valve base sealing structure the most according to claim 2, it is characterised in that: described film section (31) and institute
State and on valve seat (3) contact surface, be additionally provided with sealing ring group (33).
Ultra-low temperature ball valve valve base sealing structure the most according to claim 6, it is characterised in that: described sealing ring group (33) is wrapped
Include the PCTFE pad (331) being located at inner ring and the Graphite pad (332) being located at outer ring.
Ultra-low temperature ball valve valve base sealing structure the most according to claim 3, it is characterised in that: described valve seat (3) also includes
Pedestal portion (34), is provided with the second gap between described elastic pusher (5) inner circumferential wall and described pedestal portion (34) peripheral outer wall
(55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610687968.5A CN106151574A (en) | 2016-08-19 | 2016-08-19 | Ultra-low temperature ball valve valve base sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610687968.5A CN106151574A (en) | 2016-08-19 | 2016-08-19 | Ultra-low temperature ball valve valve base sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106151574A true CN106151574A (en) | 2016-11-23 |
Family
ID=57330558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610687968.5A Pending CN106151574A (en) | 2016-08-19 | 2016-08-19 | Ultra-low temperature ball valve valve base sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106151574A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763868A (en) * | 2017-01-12 | 2017-05-31 | 盐城市圣泰阀门有限公司 | A kind of ultra-low temperature ball valve |
| CN107940016A (en) * | 2017-12-14 | 2018-04-20 | 德施普科技发展温州有限公司 | A kind of seal ball-valve |
| CN108331936A (en) * | 2018-04-03 | 2018-07-27 | 成都成高阀门有限公司 | A kind of adaptive valve seat construction of high/low temperature and the ball valve for being equipped with the valve seat construction |
| CN108331935A (en) * | 2018-04-03 | 2018-07-27 | 成都成高阀门有限公司 | Valve base sealing structure and the upper dress formula low temperature fixing ball valve for installing the sealing structure |
| WO2022140736A1 (en) * | 2020-12-22 | 2022-06-30 | Saint-Gobain Performance Plastics Corporation | Seat insert for a cryogenic ball valve |
| EP4234993A1 (en) * | 2022-02-24 | 2023-08-30 | Werner Hartmann GmbH & Co. KG | Shut-off device with metallic seal |
| RU2827525C1 (en) * | 2020-12-22 | 2024-09-30 | Сен-Гобен Перфоманс Пластикс Корпорейшн | Saddle insert for cryogenic ball valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5482253A (en) * | 1990-03-19 | 1996-01-09 | Klyde; Ingolf | Ball valve |
| JPH11344135A (en) * | 1998-06-02 | 1999-12-14 | Kitz Corp | Seal structure for ball valve |
| CN201517633U (en) * | 2009-10-30 | 2010-06-30 | 苏州纽威阀门有限公司 | Ultra-low temperature ball valve |
| CN202659955U (en) * | 2012-06-19 | 2013-01-09 | 苏州纽威阀门股份有限公司 | Top-mounted low-temperature fixed ball valve |
| CN103383009A (en) * | 2013-07-05 | 2013-11-06 | 开维喜阀门集团有限公司 | Pollution-free metal membrane sealed ball valve |
| CN203906860U (en) * | 2014-04-25 | 2014-10-29 | 上海米盖阀门制造有限公司 | Stationary hard-sealed ball valve |
| CN205908797U (en) * | 2016-08-19 | 2017-01-25 | 方正阀门集团有限公司 | Super low temperature ball valve valve seat seal structure |
-
2016
- 2016-08-19 CN CN201610687968.5A patent/CN106151574A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5482253A (en) * | 1990-03-19 | 1996-01-09 | Klyde; Ingolf | Ball valve |
| JPH11344135A (en) * | 1998-06-02 | 1999-12-14 | Kitz Corp | Seal structure for ball valve |
| CN201517633U (en) * | 2009-10-30 | 2010-06-30 | 苏州纽威阀门有限公司 | Ultra-low temperature ball valve |
| CN202659955U (en) * | 2012-06-19 | 2013-01-09 | 苏州纽威阀门股份有限公司 | Top-mounted low-temperature fixed ball valve |
| CN103383009A (en) * | 2013-07-05 | 2013-11-06 | 开维喜阀门集团有限公司 | Pollution-free metal membrane sealed ball valve |
| CN203906860U (en) * | 2014-04-25 | 2014-10-29 | 上海米盖阀门制造有限公司 | Stationary hard-sealed ball valve |
| CN205908797U (en) * | 2016-08-19 | 2017-01-25 | 方正阀门集团有限公司 | Super low temperature ball valve valve seat seal structure |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763868A (en) * | 2017-01-12 | 2017-05-31 | 盐城市圣泰阀门有限公司 | A kind of ultra-low temperature ball valve |
| CN106763868B (en) * | 2017-01-12 | 2018-01-16 | 江苏圣泰阀门有限公司 | A kind of ultra-low temperature ball valve |
| CN107940016A (en) * | 2017-12-14 | 2018-04-20 | 德施普科技发展温州有限公司 | A kind of seal ball-valve |
| CN107940016B (en) * | 2017-12-14 | 2023-11-10 | 台州艾迪西盛大暖通科技有限公司 | Sealing ball valve |
| CN108331936A (en) * | 2018-04-03 | 2018-07-27 | 成都成高阀门有限公司 | A kind of adaptive valve seat construction of high/low temperature and the ball valve for being equipped with the valve seat construction |
| CN108331935A (en) * | 2018-04-03 | 2018-07-27 | 成都成高阀门有限公司 | Valve base sealing structure and the upper dress formula low temperature fixing ball valve for installing the sealing structure |
| WO2022140736A1 (en) * | 2020-12-22 | 2022-06-30 | Saint-Gobain Performance Plastics Corporation | Seat insert for a cryogenic ball valve |
| RU2827525C1 (en) * | 2020-12-22 | 2024-09-30 | Сен-Гобен Перфоманс Пластикс Корпорейшн | Saddle insert for cryogenic ball valve |
| EP4234993A1 (en) * | 2022-02-24 | 2023-08-30 | Werner Hartmann GmbH & Co. KG | Shut-off device with metallic seal |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |