WO2009018751A1 - Clapet à bille étanche secondaire - Google Patents

Clapet à bille étanche secondaire Download PDF

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Publication number
WO2009018751A1
WO2009018751A1 PCT/CN2008/071793 CN2008071793W WO2009018751A1 WO 2009018751 A1 WO2009018751 A1 WO 2009018751A1 CN 2008071793 W CN2008071793 W CN 2008071793W WO 2009018751 A1 WO2009018751 A1 WO 2009018751A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve seat
core
seat
oil
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.)
Ceased
Application number
PCT/CN2008/071793
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English (en)
Chinese (zh)
Inventor
Jinquan Qiu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2009018751A1 publication Critical patent/WO2009018751A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16K5/08—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
    • 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
    • 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
    • F16K5/0673—Composite packings

Definitions

  • the invention relates to a ball valve. Background technique
  • the existing ball valve usually adopts a single-sealed structure. In the frequent use of the structure, when the sealing failure occurs, the medium is easily leaked from the valve chamber inlet to the valve chamber outlet when the spool is closed. , causing the ball valve seal to fail.
  • Chinese Patent No. 94207294. 4 discloses a ball valve.
  • the left and right soft sealing seats are formed to form a first seal, but also the left and right metal parts of the left and right soft sealing seats are respectively provided with left and right metal parts.
  • the valve seat forms a secondary seal.
  • the left and right soft-seal seats are burnt, and under the action of the pre-tightening spring force in the fastener, the left and right metal seats with fire resistance will be pushed to fit the surface of the core. , a new sealing structure is formed, so even if a fire occurs, the performance of the ball valve cutting and anti-leakage can be guaranteed.
  • the invention solves the problem that the existing secondary sealing ball valve has large frictional resistance and inflexible rotation of the valve core during the opening and closing process, and provides a secondary sealing ball valve with small frictional resistance and flexible rotation of the valve core.
  • a secondary sealing ball valve comprising a valve body, a core, a valve stem, and one end of the valve stem
  • the valve body is fixedly connected to the ball core, and the ball core is rotatably disposed in the valve cavity of the valve body.
  • the ball core has a through diameter, and the front end of the valve body is provided with a medium.
  • the inlet and the rear end are provided with a medium outlet, and the front end and the rear end of the valve chamber are respectively provided with a first valve seat and a second valve seat which are matched with the core, and the front joint surface of the first valve seat and the core is provided a first annular sealing ring is provided, and a second annular sealing ring is disposed on the rear bonding surface of the second valve seat contacting the core; the valve body on the side of the first valve seat is provided with oil supply to the front joint surface
  • An oil control device wherein the second valve seat is provided with an oil storage chamber and a second valve seat oil passage, and the oil storage chamber is connected to the rear joint surface through the second valve seat oil passage, the second valve The outlet of the seat oil passage is located in front of the second annular seal ring.
  • the oil control device includes a top rod and a one-way valve, wherein the one-way valve is disposed on the first valve seat oil passage of the first valve seat, and the outlet of the first valve seat oil passage leads to the front joint
  • the one end of the jack is mounted on the valve stem, and the jack controls the conduction of the oil passage of the first valve seat through the one-way valve.
  • the technical idea of the invention is as follows: when the valve stem rotates, the ejector pin is pressed, the ejector pin opens the one-way valve, the oil control device supplies oil to the first joint surface, which is left-end lubrication; the right joint surface has the oil storage chamber through the second valve seat Oil supply to the oil passage, this is the right end lubrication. Under the action of lubrication at the left and right ends, the valve stem is flexible and the seat wear is reduced.
  • valve stem is flexible to rotate, the valve seat wear is reduced, and the service life is improved;
  • the two seals form a double insurance, and the anti-leakage effect is good.
  • Figure 1 is a schematic view showing the structure of the present invention when the core is in the closed position.
  • Fig. 2 is a schematic enlarged view showing the peripheral portion of the oil storage chamber of the present invention. Specific real Ifi ⁇ r
  • a secondary sealing ball valve includes a valve body 2, a core 6, and a valve stem 11. One end of the valve stem 11 extends out of the valve body, and the other end is fixedly connected with the core 6.
  • the core 6 is rotatably disposed in a valve cavity of the valve body, and the core 6 has a through diameter.
  • a front end of the valve body is provided with a medium inlet A, and a rear end is provided with a medium outlet B.
  • the front end and the rear end of the valve chamber are respectively provided with a first valve seat 7 and a second valve seat 5 that cooperate with the core 6.
  • a first annular sealing ring 12 is disposed on the front joint surface of the first valve seat 7 in contact with the core 6, and a second annular sealing ring 13 is disposed on the rear joint surface of the second valve seat 5 in contact with the core 6;
  • the valve body of the valve seat 7 is provided with an oil control device for supplying oil to the front joint surface
  • the second valve seat 5 is provided with an oil storage chamber 4 and a second valve seat oil passage 14,
  • the oil storage chamber 4 leads to the rear joint surface through the second valve seat oil passage 14, and the outlet of the second valve seat oil passage 14 is located in front of the second annular seal ring 13.
  • the oil control device includes a top rod 10 and a one-way valve 9, and the one-way valve 9 is disposed on the first valve seat oil passage 8 of the first valve seat 7, and the outlet of the first valve seat oil passage 8 leads to In the front joint surface, one end of the jack 10 is mounted on the valve stem 11, and the jack 10 controls the conduction of the first valve seat oil passage 8 through the check valve 9.
  • the valve stem rotates, the ejector pin is pressed, the ejector pin opens the check valve, the oil control device supplies oil to the first joint surface, and the left end is lubricated; the right joint surface has an oil storage chamber for supplying oil through the second valve seat oil passage, which is Lubricated at the right end.
  • the valve stem Under the action of lubrication at the left and right ends, the valve stem is flexible and the seat wear is reduced.
  • the ball valve When the diameter of the core is parallel to the medium inlet and the medium outlet, the ball valve is in the open position, at which time the medium inlet is in communication with the medium outlet, and the medium is allowed to pass; when the diameter on the core is perpendicular to the medium inlet and the medium outlet, The ball valve is in the closed position, and the first and second annular seals on both sides of the core form two seals. Even if the first seal fails to leak, the medium leaks from the front joint surface to the other side of the core, and there is The second seal acts as a second protection to prevent the media from leaking out of the rear joint.
  • the annular sealing ring may be a 0-shaped sealing ring, a C-shaped sealing ring, a V-shaped sealing ring or the like, and the key point is that the overall shape is a ring shape that fits the spherical surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Taps Or Cocks (AREA)

Abstract

Cette invention se rapporte à un clapet à bille étanche secondaire comprenant un corps de clapet (2), un noyau de clapet (6) et une tige de clapet (11), une extrémité de ladite tige de clapet (11) s'étendant en dehors du corps de clapet (2), l'autre extrémité étant fermement reliée audit noyau de clapet (6). Ledit noyau de clapet (6) est monté de manière rotative dans la chambre de clapet du corps de clapet (2), un trou débouchant est prévu dans ledit corps de clapet (2), une entrée de fluide (A) et une sortie de fluide (B) sont respectivement prévues dans l'extrémité avant et l'extrémité arrière dudit corps de clapet (2). Un premier siège de clapet (7) et un second siège de clapet (5) venant en prise avec ledit noyau de clapet (6) sont respectivement disposés dans l'extrémité avant et l'extrémité arrière de la chambre de clapet, la face de prise avant où le premier siège de clapet (7) est en contact avec le noyau de clapet (6) est équipé d'une première bague d'étanchéité annulaire (12), la face de prise arrière où le second siège de clapet (5) est en contact avec le noyau de clapet (6) étant équipé d'une seconde bague d'étanchéité annulaire (13) ; le corps de clapet du côté du premier siège de clapet (7) est équipé d'un dispositif de commande d'huile qui achemine l'huile jusqu'à ladite face de prise avant, ledit second siège de clapet (5) est équipé d'une chambre de stockage d'huile (4) et d'un canal d'huile de second siège de clapet (14), ladite chambre de stockage d'huile (4) communique avec ladite face de prise arrière par l'intermédiaire dudit canal d'huile du second siège de clapet (14), et la sortie dudit canal d'huile du second siège de clapet (14) se trouve en, face de ladite seconde bague d'étanchéité annulaire (13).
PCT/CN2008/071793 2007-08-03 2008-07-29 Clapet à bille étanche secondaire Ceased WO2009018751A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710070407.1 2007-08-03
CNA2007100704071A CN101158411A (zh) 2007-08-03 2007-08-03 二次密封球阀

Publications (1)

Publication Number Publication Date
WO2009018751A1 true WO2009018751A1 (fr) 2009-02-12

Family

ID=39306596

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/071793 Ceased WO2009018751A1 (fr) 2007-08-03 2008-07-29 Clapet à bille étanche secondaire

Country Status (2)

Country Link
CN (1) CN101158411A (fr)
WO (1) WO2009018751A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105257887A (zh) * 2015-11-02 2016-01-20 苏州市淞舜五金有限公司 一种润滑调节减震阀体
CN116398661A (zh) * 2023-05-06 2023-07-07 中阀控股（集团）有限公司 一种球阀的密封组件

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101158411A (zh) * 2007-08-03 2008-04-09 邱金全 二次密封球阀
CN104653804A (zh) * 2013-11-25 2015-05-27 山西浩宇阀门科技有限公司 一种低扭力旋转阀座固定球阀
CN105333192A (zh) * 2015-11-02 2016-02-17 苏州市淞舜五金有限公司 一种润滑调节阀体
CN106767330B (zh) * 2016-12-05 2019-04-02 北京中科科仪股份有限公司 一种阀头、平行误差自动补偿装置及电镜
CN110925455B (zh) * 2019-12-31 2021-08-13 常州市永邦塑业有限公司 一种高低温自适应的peek阀座

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388715A (en) * 1967-06-09 1968-06-18 Cameron Iron Works Inc Lubricated valve with spring means for relieving excessive sealant pressure
US3416558A (en) * 1967-01-23 1968-12-17 Acf Ind Inc Spherical plug valve having lubricated seats
US3542054A (en) * 1968-04-08 1970-11-24 Acf Ind Inc Lubricated double-acting valve seat
US3749357A (en) * 1972-04-07 1973-07-31 Acf Ind Inc Valve structure having fluid pressure actuated seats
US3776506A (en) * 1971-12-15 1973-12-04 Acf Ind Inc Valve structure having fluid pressure actuated sealing members
US3856261A (en) * 1973-08-02 1974-12-24 Acf Ind Inc Pressure relief means for valve body chamber
US3883112A (en) * 1973-02-02 1975-05-13 Rockwell International Corp Plug valve having composite seat element
US4083376A (en) * 1976-10-14 1978-04-11 Acf Industries, Incorporated Two piece double acting valve seat assembly
US4292989A (en) * 1979-06-01 1981-10-06 Grove Valve And Regulator Company Fire safe seal
JPH08200524A (ja) * 1995-01-20 1996-08-06 Osaka Gas Co Ltd ボールバルブ
JPH09222174A (ja) * 1996-02-16 1997-08-26 Hitachi Valve Kk 溶接形ボール弁
JPH09242893A (ja) * 1996-03-04 1997-09-16 Hitachi Valve Kk ボール弁
CN1757959A (zh) * 2005-11-10 2006-04-12 邱金全 高压时无扭距球阀
CN2851756Y (zh) * 2005-11-10 2006-12-27 邱金全 高压时无扭距球阀
CN101158411A (zh) * 2007-08-03 2008-04-09 邱金全 二次密封球阀
CN201059365Y (zh) * 2006-09-11 2008-05-14 凯喜姆阀门有限公司 加强作用式球阀
CN201090773Y (zh) * 2007-08-03 2008-07-23 邱金全 二次密封球阀

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416558A (en) * 1967-01-23 1968-12-17 Acf Ind Inc Spherical plug valve having lubricated seats
US3388715A (en) * 1967-06-09 1968-06-18 Cameron Iron Works Inc Lubricated valve with spring means for relieving excessive sealant pressure
US3542054A (en) * 1968-04-08 1970-11-24 Acf Ind Inc Lubricated double-acting valve seat
US3776506A (en) * 1971-12-15 1973-12-04 Acf Ind Inc Valve structure having fluid pressure actuated sealing members
US3749357A (en) * 1972-04-07 1973-07-31 Acf Ind Inc Valve structure having fluid pressure actuated seats
US3883112A (en) * 1973-02-02 1975-05-13 Rockwell International Corp Plug valve having composite seat element
US3856261A (en) * 1973-08-02 1974-12-24 Acf Ind Inc Pressure relief means for valve body chamber
US4083376A (en) * 1976-10-14 1978-04-11 Acf Industries, Incorporated Two piece double acting valve seat assembly
US4292989A (en) * 1979-06-01 1981-10-06 Grove Valve And Regulator Company Fire safe seal
JPH08200524A (ja) * 1995-01-20 1996-08-06 Osaka Gas Co Ltd ボールバルブ
JPH09222174A (ja) * 1996-02-16 1997-08-26 Hitachi Valve Kk 溶接形ボール弁
JPH09242893A (ja) * 1996-03-04 1997-09-16 Hitachi Valve Kk ボール弁
CN1757959A (zh) * 2005-11-10 2006-04-12 邱金全 高压时无扭距球阀
CN2851756Y (zh) * 2005-11-10 2006-12-27 邱金全 高压时无扭距球阀
CN201059365Y (zh) * 2006-09-11 2008-05-14 凯喜姆阀门有限公司 加强作用式球阀
CN101158411A (zh) * 2007-08-03 2008-04-09 邱金全 二次密封球阀
CN201090773Y (zh) * 2007-08-03 2008-07-23 邱金全 二次密封球阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105257887A (zh) * 2015-11-02 2016-01-20 苏州市淞舜五金有限公司 一种润滑调节减震阀体
CN116398661A (zh) * 2023-05-06 2023-07-07 中阀控股（集团）有限公司 一种球阀的密封组件

Also Published As

Publication number Publication date
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