CN104089044A - LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling - Google Patents
LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling Download PDFInfo
- Publication number
- CN104089044A CN104089044A CN201410336421.1A CN201410336421A CN104089044A CN 104089044 A CN104089044 A CN 104089044A CN 201410336421 A CN201410336421 A CN 201410336421A CN 104089044 A CN104089044 A CN 104089044A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- valve
- ring
- lng
- supporting
- 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.)
- Granted
Links
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
- F16K5/0626—Easy mounting or dismounting means
- F16K5/0636—Easy mounting or dismounting means the spherical plug being insertable from the top of the housing
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
-
- 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
-
- 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
-
- 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)
Abstract
The invention discloses an LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling. The LNG ultra-low temperature top-mounting type ball valve seat is characterized in that valve seat bearings are symmetrically arranged at the position, located on the upstream side and the downstream side of a valve element ball, in a valve body, and a locating pin is arranged between the end faces of the tails of the valve seat bearings and the front end face of a valve seat fixing ring; a valve seat sealing ring is embedded in twisting edges of the front ends of the valve seat bearings; valve seat pressing rings matched with the valve seat bearings in a threaded mode are arranged on the peripheries of the valve seat bearings, pre-tightening compressed springs are arranged between the tails of the valve seat pressing rings and the valve body, and the valve seat bearings can move in the axis direction by rotating the valve seat pressing rings. The LNG ultra-low temperature top-mounting type ball valve seat can be suitable for meeting requirements of LNG actual using conditions, the requirements for on-line maintenance, automatic decompression of a middle cavity in time and safe and reliable sealing performance are met, and quality and safety of LNG projects are guaranteed.
Description
Technical field
The present invention is used for relating to the ultralow temperature top-loading ball valve in LNG Liquefied natural gas (LNG) field, be mainly used in blocking or regulating of LNG medium, ensureing under the prerequisite of LNG valve on-line maintenance, realize reliable sealability by fine setting valve seat pretightening force, and by valve seat to pipeline upstream the mode from pressure release, the explosion risk of avoiding valve lumen LNG gasification superpressure to bring.
Background technique
LNG Liquefied natural gas (LNG) industry is the key industry of petrochemical field class, is also the key industry of energy strategy.Along with industrial expansion, the sector is more and more paid attention to by country and society, and its output just, with annual approximately 12% rapid growth, becomes one of global fastest-rising energy industry.As everyone knows, LNG boiling point is-163 DEG C, and gas-liquid expansion ratio is large, inflammable and explosive, specific working condition requirement, make ball valve must adopt roof-mounted structure on process pipelines, due in LNG project, valve end conventionally adopts and is welded to connect, must can on-line maintenance, and when lumen superpressure, can automatically release in time, ensure the reliable sealability of valve simultaneously, meet pipeline technological requirement.Current domestic LNG cryogenic ball valve can not meet the requirement of these aspects all the time simultaneously, discloses following several form also not fully up to expectations:
1, two or three side-mounted valve body structures, such as floating ball structural type, are that boring realizes releasing pressure automatically on spheroid; Fix for another example spherical structure form, that boring realizes releasing pressure automatically on the valve seat of upstream, these structural types all can not meet the demand of on-line maintenance, simultaneously, in floating ball, boring was lost efficacy upstream seal substantially, only rely on downstream valve seat to realize sealing, produce and deviate from the basic demand of pipeline valve; And boring is to rely on to be with helical spring one-way valve to realize releasing pressure automatically completely on fixing spherical structure valve seat, extremely unreliable.
2, roof-mounted valve body structure adopt the structural type of integral type valve seat, utilizes the technology groove of processing on valve seat, by valve two ends port, utilizes frock both sides valve seat to be pulled open to realize the installation of valve ball.But this structural type can only realize roof-mounted installation in factory, after treating that ball valve is arranged on pipeline, the technology groove on valve seat is ineffective, also just cannot really realize the on-line maintenance of valve.
3, roof-mounted valve body structure adopt the structural type of split type valve seat, adopt chain type link or be threaded, valve seat is connected into an entirety, although can realize on-line maintenance, but upstream valve seat is substantially the same with downstream valve seat form, in the time of the valve seat seal failure of upstream, downstream valve seat can not be realized effective sealing, or in the time of lumen superpressure upstream with simultaneously pressure release of downstream, whole valve can not be realized safe and reliable sealing.
Practice shows, the LNG cryogenic ball valve that the several respects such as on-line maintenance, the timely releasing pressure automatically of lumen, safe and reliable sealability require if can not meet is simultaneously applied in Practical Project, will bring huge potential safety hazard and economic loss to whole LNG project.
Summary of the invention
The present invention is for avoiding the existing deficiency of above-mentioned prior art, the LNG ultralow temperature top-loading ball valve valve seat of a kind of fine-tuning pretightening force and online dismounting is provided, make it not only can be suitable for the demand of the actual applying working condition of LNG, and can meet on-line maintenance, the timely releasing pressure automatically of lumen, the safe and reliable requirement of sealability simultaneously, ensure quality and the safety of LNG project.
The present invention is that technical solution problem adopts following technological scheme:
The structural feature of the LNG ultralow temperature top-loading ball valve valve seat of the fine-tuning pretightening force of the present invention and online dismounting is:
In valve body, be positioned at the upstream side of spool spheroid and downstream side is symmetrical arranged valve seat supporting, described symmetrically arranged valve seat supporting is respectively the downstream valve seat supporting that is in the upstream valve seat supporting of upstream side and is in downstream side, between the tail end face supporting at described valve seat and the front-end face of valve seat retaining ring, locating stud is set, the spot welding of described valve seat retaining ring is fixed in described valve body;
Be inlaid in the front end strand limit of valve seat supporting for form the valve seat insert of ring packing on valve seat supporting and the surface of spool spheroid; The valve seat pressure ring coordinating with valve seat support thread in the periphery setting of described valve seat supporting arranges pretension stage clip between the afterbody of described valve seat pressure ring and valve body, rotates described valve seat pressure ring and can make valve seat be bearing on axial direction to move.
The structural feature of the LNG ultralow temperature top-loading ball valve valve seat of the fine-tuning pretightening force of the present invention and online dismounting is also:
On described valve seat pressure ring, radially auxiliary hole is set, described in being positioned at, radially the valve seat pressure ring circumferential location at auxiliary hole place arranges a locking limited ring, one end of described locking limited ring is butted on the positive stop lug boss connecting firmly on valve body, on locking limited ring, be provided with locking slot along valve seat pressure ring circumference, and having pinning screw lock between described valve seat pressure ring and locking limited ring, described pinning screw circumferential position in locking slot is adjustable.
On described valve seat pressure ring, axial auxiliary hole is set, utilizes described axial auxiliary hole can rotate described valve seat pressure ring.
Described valve seat retaining ring extends to form towards valve seat supporting place one side the dust-proof cover being between valve seat retaining ring and valve seat supporting on inner peripheral surface.
The structural feature of the LNG ultralow temperature top-loading ball valve valve seat of the fine-tuning pretightening force of the present invention and online dismounting is also:
The valve seat supporting of described upstream is set to the sealing of two-stage cascade step, is provided with upstream side forward seal ring between its first order step and valve body, is provided with the reverse seal ring of upstream side between its second level step and valve body, forms upstream side one-way sealing;
The valve seat supporting of described downstream is set to the sealing of one-level step, is back-to-back form the reverse seal ring of downstream side forward seal ring and downstream side is set between its step surface and valve body, forms downstream side two way sealed.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention can be suitable for the demand of the actual applying working condition of LNG, and can meet on-line maintenance, the timely releasing pressure automatically of lumen and the safe and reliable requirement of sealability simultaneously, ensures quality and the safety of LNG project.
2, the present invention adopts the split type valve seat of screw-thread fit, by rotary valve base pressure ring, makes valve seat support in axial direction moving linearly, make valve seat insert near or away from spheroid, and set up dust-proof cover, can effectively realize the sealing of valve, and successfully dismounting online of spheroid;
3, the present invention, by locking limited ring is set on valve seat pressure ring, can ensure the sealability of valve seat effectively, increases the sealing reliability of valve;
4, the present invention effectively adopts the seal form of various combination between valve body and Integral valve seat, comprises that upstream side one-way sealing and downstream side two way sealed have realized rational valve overpressure relief function.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is valve seat pressure ring and locking limited ring structural representation in the present invention;
Piston effect free-body diagram when Fig. 3 a is middle and upper reaches valve seat supporting sealing of the present invention;
Piston effect free-body diagram when Fig. 3 b is middle and lower reaches valve seat supporting sealing of the present invention;
Piston effect free-body diagram when Fig. 4 is middle and upper reaches valve seat supporting releasing pressure automatically of the present invention;
Piston effect free-body diagram when Fig. 5 is middle and lower reaches valve seat supporting lumen superpressure of the present invention;
Number in the figure: 1 valve body, 2 spool spheroids, the supporting of 3a upstream valve seat, the supporting of 3b downstream valve seat, 4 valve seat retaining rings, 5 locating studs, 6a upstream valve seat insert, 6b downstream valve seat insert, 7 valve seat pressure rings, 7a is auxiliary hole radially, the axial auxiliary hole of 7b, 8 pretension stage clips; 9 locking limited rings, 10 positive stop lug boss, 11 pinning screws, 12 dust-proof cover, 13a upstream side forward seal ring, 13b downstream side forward seal ring, the reverse seal ring of 14a upstream side, the reverse seal ring in 14b downstream side.
Embodiment
In the present embodiment, the structure of the LNG ultralow temperature top-loading ball valve valve seat of fine-tuning pretightening force and online dismounting is set to:
Referring to Fig. 1, in valve body 1, be positioned at the upstream side of spool spheroid 2 and downstream side is symmetrical arranged valve seat supporting, symmetrically arranged valve seat supporting is respectively the downstream valve seat supporting 3b that is in the upstream valve seat supporting 3a of upstream side and is in downstream side, between the tail end face supporting at valve seat and the front-end face of valve seat retaining ring 4, locating stud 5 is set, 4 spot welding of valve seat retaining ring are fixed in valve body 1.
As shown in Figure 1, for form the valve seat insert of ring packing on valve seat supporting and the surface of spool spheroid 2, comprise upstream valve seat insert 6a and downstream valve seat insert 6b, be inlaid in respectively in the front end strand limit of upstream valve seat supporting 3a and downstream valve seat supporting 3b; The valve seat pressure ring 7 coordinating with valve seat support thread in the periphery setting of valve seat supporting arranges pretension stage clip 8 between the afterbody of valve seat pressure ring 7 and valve body 1, and rotation valve seat pressure ring 7 can make valve seat be bearing on axial direction to move.
Referring to Fig. 2, radially auxiliary hole 7a is set in the present embodiment on valve seat pressure ring 7, be positioned at the radially valve seat pressure ring circumferential location at auxiliary hole 7a place one locking limited ring 9 is set, one end of locking limited ring 9 is butted on the positive stop lug boss 10 connecting firmly on valve body, on locking limited ring 9, be provided with locking slot along valve seat pressure ring circumference, and be marked with location graduation, a pair of pinning screw 11 is locked between valve seat pressure ring 7 and locking limited ring 9, pinning screw 11 circumferential position in locking slot is adjustable, and can calculate the pre compressed magnitude of pretension stage clip 8 according to the location graduation correspondence after adjusting.
As shown in Figure 2, axial auxiliary hole 7b is set on valve seat pressure ring 7, utilizes the axial auxiliary hole 7b can rotary valve base pressure ring 7, so that valve seat Zhi Chengzuo linear axis is to movement.
As shown in Figure 1, valve seat retaining ring 4 in the present embodiment extends to form towards valve seat supporting place one side the dust-proof cover 12 being between valve seat retaining ring and valve seat supporting on inner peripheral surface, to prevent that dirt is embedded between the two, cause valve seat supporting to move and put in place, and can therefore make spool spheroid dismantle smoothly online.
As shown in Fig. 3 a and Fig. 4, the present embodiment middle and upper reaches valve seat supporting 3a is set to the sealing of two-stage cascade step, between its first order step and valve body 1, be provided with upstream side forward seal ring 13a, between its second level step and valve body 1, be provided with the reverse seal ring 14a of upstream side, form upstream side one-way sealing, make upstream side be formed as single piston effect valve seat.
As shown in Fig. 3 b and Fig. 5, the present embodiment middle and lower reaches valve seat supporting 3b is set to the sealing of one-level step, between its step surface and valve body 1, be back-to-back form downstream side forward seal ring 13b and the reverse seal ring 14b in downstream side are set, form downstream side two way sealed, make downstream side be formed as double-piston effect valve seat, while realizing LNG medium superpressure with this, can only upstream direction leak, and ensure the sealability of whole valve.
When assembling, first, by valve seat retaining ring and valve body tight, respectively use argon arc welding spot welding at two ends; Pack into before spool spheroid, valve seat pressure ring is screwed in to valve seat supporting, make valve seat supporting end face and valve seat pressure ring end face, and pack in the lump in valve body with preloading spring and each seal ring, utilize frock to strut two ends valve seat pressure ring, spool spheroid packs in the time keeping fully open position, then utilizes frock rotary valve base pressure ring, make valve seat supporting move axially and make its end face to protrude the end face of valve seat pressure ring, the adjustment that completes valve seat pressure ring utilizes lock screw to carry out locking position afterwards.
In the time that valve seat pretension specific pressure is enough, locking limited ring can ensure that valve seat pressure ring does not become flexible; In the time that valve seat pretension specific pressure is inadequate, turn valve seat pressure ring, further compresses preloading spring, increases pretension specific pressure, now can, by the rotating scale on limited ring, calculate the pre compressed magnitude that butterfly spring increases, and ensures the reliable sealability of valve seat.
Shown in Fig. 3 a and Fig. 3 b, in the time that upstream valve seat and downstream valve seat are all excellent, in the time that upstream or downstream media pressure are P1, lifting surface area A2 > A1, difference in areas is X1, now, under pressure medium effect, pushes upstream valve seat or downstream valve seat to spool spheroid, realize sealing, blocking-up medium passes through;
Shown in Fig. 5, in the time that upstream valve seat has scratch, now dielectric leakage is to lumen, and pressure is P2, downstream valve seat now, lifting surface area A3 > A4, difference in areas is X2, now under pressure medium effect, push downstream valve seat to spheroid, realize sealing, the medium that blocking-up is leaked, by downstream valve seat, is realized sealing reliably;
Shown in Fig. 4, when spheroid is from standard-sized sheet to complete shut-down, blocking-up media flow, now P1=P2, when valve lumen medium LNG generating gasification, P2 sharply increases, much larger than P1, now, upstream valve seat A5 < A6, difference in areas is X3, under the effect of P2, upstream valve seat is pushed away rapidly to spheroid, medium is released to pipeline upstream, now downstream valve seat lifting surface area A3 > A4, difference in areas is X2, under the effect of P2, pushes downstream valve seat to spheroid, realize sealing, blocking-up medium leaks downstream.
The present invention, owing to forming upstream side one-way sealing valve seat, can block from upstream pressure medium, realizes sealing; In the time of lumen superpressure, medium acts on power on one-way sealing valve seat and can overcome the pretightening force of preloading spring, and the valve seat of one-way sealing is pushed away to spool spheroid, realizes upstream releasing pressure automatically; Now, the valve seat of downstream side two way sealed compresses to spool spheroid under the effect of lumen medium, realizes sealing.Reach the upstream pressure release automatically of lumen superpressure, ensure that downstream side does not have the object of dielectric leakage simultaneously.
The present invention is suitable for LNG ultralow temperature top-loading ball valve, assembling and maintenance all can make valve in the situation that pipeline is dismantled, not realize, both gasification, the pressure that had reduced LNG sharply increases, makes valve and the pipeline dangerous possibility of blasting, can block again medium and leak downstream, fundamentally ensure quality and the safety of LNG engineering.
Claims (5)
1. the LNG ultralow temperature top-loading ball valve valve seat of fine-tuning pretightening force and online dismounting, is characterized in that:
In valve body (1), be positioned at the upstream side of spool spheroid (2) and downstream side is symmetrical arranged valve seat supporting, described symmetrically arranged valve seat supporting is respectively the downstream valve seat supporting (3b) that is in the upstream valve seat supporting (3a) of upstream side and is in downstream side, between the tail end face supporting at described valve seat and the front-end face of valve seat retaining ring (4), locating stud (5) is set, described valve seat retaining ring (4) spot welding is fixed in described valve body (1);
Be inlaid in the front end strand limit of valve seat supporting for form the valve seat insert of ring packing on valve seat supporting and the surface of spool spheroid (2); The valve seat pressure ring (7) coordinating with valve seat support thread in the periphery setting of described valve seat supporting, between the afterbody of described valve seat pressure ring (7) and valve body (1), pretension stage clip (8) is set, rotates described valve seat pressure ring (7) and can make valve seat be bearing on axial direction to move.
2. the LNG ultralow temperature top-loading ball valve valve seat of fine-tuning pretightening force according to claim 1 and online dismounting, it is characterized in that: radially auxiliary hole (7a) is set on described valve seat pressure ring (7), described in being positioned at, radially the valve seat pressure ring circumferential location at auxiliary hole (7a) place arranges a locking limited ring (9), one end of described locking limited ring (9) is butted on the positive stop lug boss (10) connecting firmly on valve body, locking limited ring (9) is upper is provided with locking slot along valve seat pressure ring circumference, and there is pinning screw (11) to be locked between described valve seat pressure ring (7) and locking limited ring (9), described pinning screw (11) circumferential position in locking slot is adjustable.
3. the LNG ultralow temperature top-loading ball valve valve seat of fine-tuning pretightening force according to claim 1 and 2 and online dismounting, it is characterized in that: axial auxiliary hole (7b) is set on described valve seat pressure ring (7), utilizes described axial auxiliary hole (7b) can rotate described valve seat pressure ring (7).
4. the LNG ultralow temperature top-loading ball valve valve seat of fine-tuning pretightening force according to claim 1 and online dismounting, is characterized in that: described valve seat retaining ring (4) extends to form towards valve seat supporting place one side the dust-proof cover (12) being between valve seat retaining ring and valve seat supporting on inner peripheral surface.
5. the LNG ultralow temperature top-loading ball valve valve seat of fine-tuning pretightening force according to claim 1 and online dismounting, is characterized in that:
Described upstream valve seat supporting (3a) is set to the sealing of two-stage cascade step, between its first order step and valve body (1), be provided with upstream side forward seal ring (13a), between its second level step and valve body (1), be provided with the reverse seal ring of upstream side (14a), form upstream side one-way sealing;
Described downstream valve seat supporting (3b) is set to the sealing of one-level step, between its step surface and valve body (1), be back-to-back form the reverse seal ring of downstream side forward seal ring (13b) and downstream side (14b) is set, form downstream side two way sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336421.1A CN104089044B (en) | 2014-07-15 | 2014-07-15 | LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410336421.1A CN104089044B (en) | 2014-07-15 | 2014-07-15 | LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104089044A true CN104089044A (en) | 2014-10-08 |
| CN104089044B CN104089044B (en) | 2017-01-11 |
Family
ID=51636786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410336421.1A Active CN104089044B (en) | 2014-07-15 | 2014-07-15 | LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104089044B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782484A (en) * | 2016-04-19 | 2016-07-20 | 潘明尧 | LNG ultralow-temperature top installing type ball valve |
| CN106523729A (en) * | 2015-09-10 | 2017-03-22 | 中国石油天然气集团公司 | Low-temperature top-assembling type fixed ball valve |
| WO2017079898A1 (en) * | 2015-11-10 | 2017-05-18 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Press fit valve adapation for top entry valve in cryogenic service |
| CN106763876A (en) * | 2017-01-16 | 2017-05-31 | 慎江阀门有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
| CN106763873A (en) * | 2017-03-17 | 2017-05-31 | 西诺威阀门控制（苏州）有限公司 | Orbit ball valve detachable valve seat |
| CN108506513A (en) * | 2018-05-29 | 2018-09-07 | 天津祥嘉流体控制系统有限公司 | The LNG ultralow temperature top-loading ball valves for preventing valve base seal from sliding |
| CN108626428A (en) * | 2018-07-05 | 2018-10-09 | 杭州杭氧工装泵阀有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
| CN109084022A (en) * | 2018-09-21 | 2018-12-25 | 上海沪东造船阀门有限公司 | A kind of ultralow temperature ball valve seals |
| WO2019140855A1 (en) * | 2018-01-18 | 2019-07-25 | 贺增华 | Fixed ball valve |
| US20190249786A1 (en) * | 2018-02-14 | 2019-08-15 | Fisher Controls International Llc | Ball Valve Having an Adjustable Trim Arrangement |
| CN110159782A (en) * | 2018-02-14 | 2019-08-23 | 费希尔控制产品国际有限责任公司 | Ball valve with the ball element with rotation control |
| US10627004B2 (en) | 2015-11-10 | 2020-04-21 | L'Air Liquide, SociétéAnonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Valve adaptation for top entry valve in cryogenic service |
| US11448321B2 (en) | 2018-08-03 | 2022-09-20 | Saint-Gobain Performance Plastics Corporation | Ball valve seal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3348804A (en) * | 1964-06-10 | 1967-10-24 | Grove Valve & Regulator Co | Valve construction |
| JP2000028016A (en) * | 1998-07-09 | 2000-01-25 | Tokyo Gas Co Ltd | Seal structure of ball valve |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102797868A (en) * | 2012-08-20 | 2012-11-28 | 天津祥嘉流体控制系统有限公司 | Top-mounted ultra-low temperature ball valve |
| WO2013066187A1 (en) * | 2011-11-01 | 2013-05-10 | Terje Håland As | Seal arrangement for valve |
| CN203477422U (en) * | 2013-09-24 | 2014-03-12 | 宣达实业集团有限公司 | Top-installed type ball valve with adjustable valve seat |
| CN103742672A (en) * | 2014-01-27 | 2014-04-23 | 苏州纽威阀门股份有限公司 | Top-mounted ball valve |
| CN203703226U (en) * | 2013-12-18 | 2014-07-09 | 雷蒙德（北京）阀门制造有限公司 | Double-piston double-blocking hard sealing valve seat with metal C-shaped ring sealing structure |
-
2014
- 2014-07-15 CN CN201410336421.1A patent/CN104089044B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3348804A (en) * | 1964-06-10 | 1967-10-24 | Grove Valve & Regulator Co | Valve construction |
| JP2000028016A (en) * | 1998-07-09 | 2000-01-25 | Tokyo Gas Co Ltd | Seal structure of ball valve |
| WO2013066187A1 (en) * | 2011-11-01 | 2013-05-10 | Terje Håland As | Seal arrangement for valve |
| CN102748497A (en) * | 2012-07-16 | 2012-10-24 | 圣博莱阀门有限公司 | Ultra-low temperature top-mounted type ball valve |
| CN102797868A (en) * | 2012-08-20 | 2012-11-28 | 天津祥嘉流体控制系统有限公司 | Top-mounted ultra-low temperature ball valve |
| CN203477422U (en) * | 2013-09-24 | 2014-03-12 | 宣达实业集团有限公司 | Top-installed type ball valve with adjustable valve seat |
| CN203703226U (en) * | 2013-12-18 | 2014-07-09 | 雷蒙德（北京）阀门制造有限公司 | Double-piston double-blocking hard sealing valve seat with metal C-shaped ring sealing structure |
| CN103742672A (en) * | 2014-01-27 | 2014-04-23 | 苏州纽威阀门股份有限公司 | Top-mounted ball valve |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523729A (en) * | 2015-09-10 | 2017-03-22 | 中国石油天然气集团公司 | Low-temperature top-assembling type fixed ball valve |
| US10571043B2 (en) | 2015-11-10 | 2020-02-25 | L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Press fit valve adaptation for top entry valve in cryogenic service |
| WO2017079898A1 (en) * | 2015-11-10 | 2017-05-18 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Press fit valve adapation for top entry valve in cryogenic service |
| US10627004B2 (en) | 2015-11-10 | 2020-04-21 | L'Air Liquide, SociétéAnonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Valve adaptation for top entry valve in cryogenic service |
| CN105782484A (en) * | 2016-04-19 | 2016-07-20 | 潘明尧 | LNG ultralow-temperature top installing type ball valve |
| CN106763876A (en) * | 2017-01-16 | 2017-05-31 | 慎江阀门有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
| CN106763873A (en) * | 2017-03-17 | 2017-05-31 | 西诺威阀门控制（苏州）有限公司 | Orbit ball valve detachable valve seat |
| WO2019140855A1 (en) * | 2018-01-18 | 2019-07-25 | 贺增华 | Fixed ball valve |
| US11054044B2 (en) | 2018-02-14 | 2021-07-06 | Fisher Controls International Llc | Ball valve having a ball valve element with rotation control |
| US20190249786A1 (en) * | 2018-02-14 | 2019-08-15 | Fisher Controls International Llc | Ball Valve Having an Adjustable Trim Arrangement |
| CN110159781A (en) * | 2018-02-14 | 2019-08-23 | 费希尔控制产品国际有限责任公司 | Ball valve with the internals device being adjustable |
| CN110159782A (en) * | 2018-02-14 | 2019-08-23 | 费希尔控制产品国际有限责任公司 | Ball valve with the ball element with rotation control |
| US10544868B2 (en) * | 2018-02-14 | 2020-01-28 | Fisher Controls International Llc | Ball valve having an adjustable trim arrangement |
| CN110159781B (en) * | 2018-02-14 | 2022-03-08 | 费希尔控制产品国际有限责任公司 | Ball valve with adjustable trim arrangement |
| GB2573368B (en) * | 2018-02-14 | 2023-01-18 | Fisher Controls Int Llc | Ball valve having an adjustable trim arrangement |
| US11092248B2 (en) | 2018-02-14 | 2021-08-17 | Fisher Controls International Llc | Serviceable and adjustable full bore ball valve trim arrangement |
| CN108506513A (en) * | 2018-05-29 | 2018-09-07 | 天津祥嘉流体控制系统有限公司 | The LNG ultralow temperature top-loading ball valves for preventing valve base seal from sliding |
| CN108626428A (en) * | 2018-07-05 | 2018-10-09 | 杭州杭氧工装泵阀有限公司 | A kind of ultralow temperature upper-mounting type ball valve |
| US11448321B2 (en) | 2018-08-03 | 2022-09-20 | Saint-Gobain Performance Plastics Corporation | Ball valve seal |
| CN109084022B (en) * | 2018-09-21 | 2021-03-23 | 上海沪东造船阀门有限公司 | Ultra-low temperature ball valve seal ring |
| CN109084022A (en) * | 2018-09-21 | 2018-12-25 | 上海沪东造船阀门有限公司 | A kind of ultralow temperature ball valve seals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104089044B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104089044A (en) | LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling | |
| US20160281877A1 (en) | Bracket used for ball valve and trunnion ball valve | |
| US20170009918A1 (en) | Gasket with compression and rotation control | |
| CN105782484A (en) | LNG ultralow-temperature top installing type ball valve | |
| CN106415087A (en) | Seal structure for butterfly valve | |
| CN102359690B (en) | Safety anti-explosion self-sealing rotary compensator | |
| CN204284478U (en) | LNG heavy caliber cast steel stop valve | |
| CN203477422U (en) | Top-installed type ball valve with adjustable valve seat | |
| CN105299258A (en) | Through type female thread self-locking ball valve | |
| US20160003385A1 (en) | Gasket with compression and rotation control | |
| CN104344018A (en) | End face seal rotary valve | |
| CN104989843A (en) | Ultralow-temperature metal hard seal floating ball valve | |
| CN104989841A (en) | High-temperature metal hard sealing floating ball valve | |
| CN205350424U (en) | High pressure ultra -low temperature upper assembling type ball valve composite seal disk seat | |
| CN205639619U (en) | Combined sealing device for liquid oxygen pump | |
| CN204805604U (en) | Ultra -low temperature metal ball valve that floats sealed firmly | |
| CN107763242A (en) | Low temperature upper-mounting type ball valve valve seat construction and its on-line maintenance method for dismounting | |
| CN212616870U (en) | Connecting structure of pressure oil tank | |
| CN204420106U (en) | A kind of bicircular arcs lip-type packing | |
| CN112460281A (en) | Ultra-low temperature top-mounted ball valve | |
| CN207486301U (en) | A kind of rotatable high pressure high life multi-way joint | |
| JP6820814B2 (en) | Eccentric rotary valve | |
| US2398444A (en) | Plug valve closure | |
| US20190219175A1 (en) | Crossover rotary valves and stem seal packing | |
| CN201288819Y (en) | Bidirectional balance mechanical seal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee after: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE Co.,Ltd. Address before: 230031 No. 888 Changjiang West Road, Shushan District, Anhui, Hefei Patentee before: HEFEI GENERAL MACHINERY Research Institute |
|
| CP01 | Change in the name or title of a patent holder |