WO1998025057A2 - Dispositif separateur pour siege dans un ensemble clapet - Google Patents

Dispositif separateur pour siege dans un ensemble clapet Download PDF

Info

Publication number
WO1998025057A2
WO1998025057A2 PCT/KR1997/000223 KR9700223W WO9825057A2 WO 1998025057 A2 WO1998025057 A2 WO 1998025057A2 KR 9700223 W KR9700223 W KR 9700223W WO 9825057 A2 WO9825057 A2 WO 9825057A2
Authority
WO
WIPO (PCT)
Prior art keywords
valve
opening
closing member
movable plate
spacious
Prior art date
Application number
PCT/KR1997/000223
Other languages
English (en)
Other versions
WO1998025057A3 (fr
Inventor
Jang Hong Ahn
Original Assignee
Jang Hong Ahn
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 Jang Hong Ahn filed Critical Jang Hong Ahn
Publication of WO1998025057A2 publication Critical patent/WO1998025057A2/fr
Publication of WO1998025057A3 publication Critical patent/WO1998025057A3/fr

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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/20—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the seats
    • F16K3/207—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the seats by means of hydraulic forces

Definitions

  • the present invention relates to a valve apparatus, and in particular to a seat separating apparatus for a valve apparatus which is capable of separating a valve seat from an opening/closing member when opening/closing a valve by allowing a seat fixing member to be movable by using a hydraulic pressure or a gaseous pressure.
  • the valve is engaged to various pipes and is used for blocking the flow of liquid or gas in the pipe.
  • the valve there are known the gate valve, butterfly valve, ball valve, etc. based on the shape thereof, the inner construction thereof or the purpose thereof.
  • the valve includes a valve body having an inlet portion through which liquid is introduced and an outlet portion through which liquid is discharged, a valve opening/closing member rotatably disposed in the inner space of the valve body for opening or blocking the inlet and outlet portions, and a handle member for rotatably operating the opening/closing member.
  • a valve seat is fixedly mounted at an inner portion of the valve body for stably maintaining a closed state between the seat and the valve opening/closing member when opening/closing the valve opening/closing member.
  • a seat separating apparatus for a valve apparatus which includes a valve body having an inlet portion and an outlet portion through which a liquid flows, an opening/closing member rotatably disposed between the inlet and outlet portions of the valve body for opening/closing the valve, a valve seat assembly which is movably installed to be closely contacted with the opening/closing member or to be separated therefrom, and a moving member for moving the valve seat assembly.
  • the seat assembly includes a horizontal portion to which a seat member is attached to one side portion thereof and a vertical portion defining first and second spacious portions between the same and a groove formed in an inner circumferential surface of the valve body, so that the valve seat attached to the valve assembly closely contacts with the opening/closing member or is separated therefrom by a hydraulic pressure supplied to the first and second spacious portions, respectively.
  • Figure 1 is a longitudinal cross-sectional view illustrating a gate valve to which a seat separating apparatus for a valve apparatus according to the present invention is adapted;
  • Figure 2 is an enlarged view of the portion "A" of Figure 1 ;
  • Figure 3 is a cross-sectional view illustrating the valve of Figure 2 which is opened;
  • Figure 4 is a partial cross-sectional view illustrating the valve of Figure
  • Figure 5 is a detailed cross-sectional view illustrating the portion "B" of Figure 4.
  • Figure 6 is a detailed cross-sectional view illustrating the portion "C" of Figure 4.
  • Figure 7 is a detailed cross-sectional view illustrating the portion "D" of Figure 4.
  • Figure 8 is a detailed cross-sectional view illustrating the portion "E" of Figure 4.
  • Figure 9 is a longitudinal cross-sectional view illustrating a ball valve to which a seat separating apparatus for a valve apparatus according to the present invention is adapted;
  • Figure 10 is a detailed cross-sectional view illustrating the portion "F" of Figure 9.
  • Figure 11 is a cross-sectional view illustrating the valve of Figure 10 according to another embodiment of the present invention.
  • Figure 1 illustrates a gate valve, to which a seat separating apparatus for a valve apparatus according to the present invention is adapted, which includes a valve body 100 having an inlet portion 101 and an outlet portion 102 through which a liquid flows, a valve opening/closing member 110 rotatably disposed between the inlet portion 101 and the outlet portion 102 of the valve body 100 for allowing the inlet portion 101 and the outlet portion 102 to communicate with each other or blocking the same, respectively, a handle member 120 for rotating the valve opening/closing member 110, and a valve seat assembly 130 movably disposed in an inner circumferential portion of the valve body 100.
  • the valve seat assembly 130 includes a ringular movable plate 133 movably inserted into a groove 103 which is formed in a step shape in an inner circumferential portion of the valve body 100 and having a horizontal portion 131 and a vertical portion 132, a fixing ring 134 for preventing the movable plate 133 from escaping from the groove 103, a snap ring 135 for fixedly supporting the fixing ring 134, and a seat member 136 attached to one lateral portion of the driving ring 133 and being tightly contacted with the surface of the opening/closing member 110 when blocking the valve.
  • a spring fixing groove 104 is formed in one side of the valve body 100, and a spring 141 is inserted into the spring fixing groove 104 for elastically supporting the movable plate 133 and the opening/closing member 110 by providing an elastic force of the opening/closing member 110 to the movable plate 133.
  • a plurality of packing members 137 are provided between the movable plate 133 and the fixing ring 134, the horizontal portion
  • first and second hydraulic paths 143 and 143' communicating with first and second hydraulic nozzles 142 and 142' disposed in the outer portion of the valve body 100 are formed in the groove 103 of the valve body 100.
  • the first and second hydraulic nozzles 142 and 142' are connected with an external hydraulic supply apparatus (not shown), respectively, and the first and second hydraulic paths 143 and 143' communicate with first and second spacious portions 144 and 144' defined between the vertical portion
  • the seat member 136 is always separated from the opening/closing member 110 during the rotation of the opening/closing member 110 for opening/closing the valve, it is possible to rotate the opening/closing member 110 using a relatively smaller torque, and it is possible to prevent an abrasion or damage of the seat member due to the friction of the seat member 136.
  • the hydraulic pressure is transferred to the first spacious portion 144 from the hydraulic supply apparatus without rotating the opening/closing member 110 and moving the movable plate 133 in the direction opposed to the opening/closing member 1 10, so that the seat member 136 attached to the end portion of the movable plate 133 is spaced apart from the opening/closing member 110, thus allowing a small amount of the liquid to flow through the gap formed between the seat member 136 and the opening/closing member 110.
  • the thusly formed gap is adjustable by controlling the difference between the hydraulic pressure supplied to the first spacious portion 144 and the elastic force of the spring 141.
  • the hydraulic pressure transferred to the first and second spacious portions 144 and 144' through the first and second hydraulic nozzles 142 and 142' are blocked or supplied depending on the opening/closing operation of the valve. Namely, when a hydraulic pressure is transferred to the first spacious portion 143, the second spacious portion 143' is blocked from the supply of the hydraulic pressure, and when the hydraulic pressure is transferred to the second spacious portion 143', the second spacious portion 143' is blocked from the supply of the hydraulic pressure, and when the hydraulic pressure is supplied to the second spacious portion 143', the first spacious portion 143 is blocked from the supply of the hydraulic pressure.
  • a plurality of packing members 137 are provided in the movable plate 133 and the fixing ring 134 for sealing when the hydraulic pressure is transferred to the first spacious portion 143 or the second spacious portion 143'; however, the use of the packing members 137 are not limited thereto. Various modifications thereof are available for effectively sealing the same.
  • the shape and fixing structure of the driving member 133 are disclosed as examples for implementing the embodiments of the present invention.
  • the spring 141 is used for supplying a predetermined elastic force to the opening/closing member 110; however, the position of the same may be preferably changed so that the elastic force is applied in the direction that the movable plate 133 is separated from the opening/closing member 110.
  • Figures 4 trough 8 illustrate a second embodiment of the present invention.
  • the sealing structures of the first and second spacious portions and the fixing structure of the movable plate of the first embodiment of the present invention are varied.
  • the descriptions of the remaining structures will be omitted, and the same elements as in the first embodiment are given the same reference numerals with respect to the second embodiment of the present invention.
  • the fixing structure of the movable plate according to the second embodiment of the present invention will now be explained.
  • a fixing ring 134 is fixedly inserted into a groove 103 formed in an outer circumferential surface of the valve body 100 together with a snap ring 135, and a fixing plate 150 having through holes 151 and 151 ' is fixedly inserted into the groove 103 which is formed perpendicularly from the fixing ring 134.
  • the through holes 151 and 151 ' of the fixing plate 150 communicate with the first and second hydraulic paths 143 and 143' for thus supplying a hydraulic pressure to the first and second spacious portions 144 and 144' which are defined by the vertical portion 132 of the movable plate 133.
  • a spring fixing groove 104 is formed in a rear portion of the movable plate 133, so that the spring 141 elastically supports the movable plate 133 in the direction of the opening/closing member 110 between the same and the groove 103 of the valve body.
  • bellows tubes 152 and 152' are disposed in the first and second spacious portions 144 and 144' for sealing of the hydraulic pressure transferred thereinto.
  • the bellows tubes are used for sealing between the driving member and the fixed members, in contrast with the packing members of the first embodiment of the present o invention.
  • the packing member when the packing members are used, the packing member may be worn due to the friction, and should be changed.
  • the bellows tubes are used for the same purpose, it is possible to avoid the above-described problem, thereby extending the use life of the valve.
  • the first bellows tube 152 When a hydraulic pressure is transferred through the first hydraulic supply nozzle 142 when opening or blocking the valve, the first bellows tube 152 is expanded to cause the movable plate 133 to move in the direction opposed to the opening/closing member 110, and then the opening/closing member 110 is rotated in a state that the seat member 136 is separated from the opening/closing member 110, so that it is possible to rotate the opening/closing member 110 using a relatively smaller torque, and it is possible to prevent the abrasion of the seat member 136.
  • Figures 9 and 10 illustrate a ball valve to which the seat abrasion prevention apparatus according to the present invention is adapted.
  • the movable plate attached with the seat member is installed to be movable, so that the opening/closing operation of the valve is performed in a state that the seat member is separated from the opening/closing member.
  • the movable plate 133 to which the seat member 136 is attached is installed in the groove 103 of the valve body 100 together with the fixing plate 134 using the snap ring 135, and the vertical portion 132 of the movable plate 133 is elastically supported by the opening/closing member 100, namely, a ball, by using the spring 141.
  • first and second spacious portions 144 and 144' defined by the vertical portion 132 of the movable plate 133 within the groove 103 of the valve body 100 communicate with the first and second hydraulic paths 143 and 143', and a plurality of packing members 137 are disposed between the horizontal portion 131 and vertical portion 132 of the movable plate 133 and the upper and lower surfaces of the fixing ring 134, so that the interiors of the first and second spacious portions 144 and 144' are sealed.
  • the opening/closing member 11 is operated for opening/closing the valve.
  • a hydraulic pressure is transferred to the first spacious portion 144 through the first hydraulic nozzle 142, the first spacious portion 144 is expanded by the thusly transferred hydraulic pressure. Therefore, since the thusly expanding force overcomes the elastic force of the spring 141 for thus backwardly moving the movable plate 133, the seat member 136 is separated from the opening/closing member 110. Therefore, the opening/closing member 1 10 is rotatably operated, and the rotation operation of the opening/closing member 110 is performed using a smaller torque. Also, a damage or abrasion of the seat member 136 is prevented.
  • Figure 11 is an embodiment of the present invention for adapting one hydraulic supply member which is used only when the valve is blocked.
  • this embodiment only the shapes of the movable plate and the groove formed in the valve body are different from that of the previously described embodiments.
  • the movable plate 133 is fixed to the groove 103 of the valve body 100 by the snap ring 135, and a spacious portion 144 communicates with the hydraulic nozzle 142 by the hydraulic path 143 and is formed between the movable plate 133 and the groove 103, and the movable plate 133 is elastically supported in the direction opposed to the opening/closing member 110 by the spring 141 inserted into the spring fixing groove 104 formed in the movable plate 133 and disposed between the same and the snap ring 135.
  • the movable plate 133 is backwardly moved by the elastic force of the spring 141 , and the seat member 136 is separated from the opening/closing member 110. At this time, the spacious portion 103 is blocked from the hydraulic pressure.
  • the hydraulic pressure is transferred into the spacious portion 103 through the hydraulic nozzle 142.
  • the movable plate 133 overcomes the elastic force of the spring 141 and is moved to the opening/closing member 1 10, so that the seat member 136 attached to the end portion thereof closely contacts with the surface of the opening/closing member 110, thus maintaining a stable blocking state of the valve.
  • the position of the spring 141 and the hydraulic pressure nozzle 142 and the hydraulic path 143 may be changed, so that the elastic force of the spring 141 is applied to the movable plate 133 in the direction that the valve is blocked, and the hydraulic pressure may be used for separating the seat member 136 from the opening/closing member 110 during the rotation of the opening/closing member 110.
  • the butterfly which adapts a disk or the like may be preferably adapted to the embodiments of the present invention.
  • the opening/closing operation of the valve may be accomplished with a relatively smaller torque. Also, it is possible to prevent the seat from being damaged or worn due to the friction when rotating the opening/closing member by separating the seat from the opening/closing member during the opening/closing operation of the valve. In addition, it is possible to implement a stable blocking state of the valve by closely contacting the seat with the opening/closing member using the hydraulic pressure when blocking the valve.

Landscapes

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

Abstract

L'invention a trait à un dispositif séparateur pour siège dans un ensemble clapet, à même de régler la force de pression hydraulique en séparant un siège de clapet de l'élément d'ouverture/fermeture au moment de l'ouverture du clapet et en permettant au liquide de s'écouler dans l'intervalle formé entre ledit élément et le siège de clapet. L'appareil comporte un corps de clapet pourvu d'une partie d'admission et d'une partie d'évacuation à travers lesquelles s'écoule un liquide, un élément d'ouverture/fermeture à montage rotatif se trouvant entre les parties d'admission et d'évacuation du corps de clapet aux fins de l'ouverture et de la fermeture du clapet, un ensemble siège de clapet placé de manière à se trouver en contact étroit avec l'élément d'ouverture/fermeture ou bien à en être séparé et un élément mobile servant à déplacer l'ensemble siège de clapet.
PCT/KR1997/000223 1996-11-16 1997-11-17 Dispositif separateur pour siege dans un ensemble clapet WO1998025057A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR19960055228 1996-11-16
KR1996/55228 1996-11-16

Publications (2)

Publication Number Publication Date
WO1998025057A2 true WO1998025057A2 (fr) 1998-06-11
WO1998025057A3 WO1998025057A3 (fr) 1998-09-03

Family

ID=19482452

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1997/000223 WO1998025057A2 (fr) 1996-11-16 1997-11-17 Dispositif separateur pour siege dans un ensemble clapet

Country Status (3)

Country Link
KR (1) KR100259608B1 (fr)
CN (1) CN1215463A (fr)
WO (1) WO1998025057A2 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10065714A1 (de) * 2000-12-29 2002-07-11 Torsten Burgmer Flachschieber
DE102008017099A1 (de) 2008-04-02 2009-10-15 Torsten Burgmer Flachschieber
CN102094993A (zh) * 2010-11-29 2011-06-15 河北联合大学 可靠密封的卸灰固定球阀
CN107965585A (zh) * 2017-11-28 2018-04-27 永嘉县信诚科技服务有限公司 全自动高温无摩擦启闭电控闸阀
CN112727829A (zh) * 2020-12-31 2021-04-30 兰州理工大学 通过调节流体流通面积实现阻尼调节的液压阀
US20210239221A1 (en) * 2020-02-03 2021-08-05 Deltavalve, Llc Automated Line Blind
US11131393B2 (en) * 2015-05-07 2021-09-28 Sri Energy, Inc. Gate valve
US20220204865A1 (en) * 2020-12-31 2022-06-30 Tapcoenpro, Llc Systems and Methods for Purging an Isolation Valve with a Liquid Purge Medium
US11480253B2 (en) * 2019-07-31 2022-10-25 Oil Patch Group, Inc. Hydralock frac valve
US11572956B2 (en) * 2018-11-01 2023-02-07 Oil Sttes Energy Services, L.L.C. Valve with pressure differential seating
US11655900B2 (en) * 2018-11-01 2023-05-23 Oil States Energy Services, L.L.C. Valve with pressure differential seating
US11767918B2 (en) 2021-06-24 2023-09-26 Nitro Fluids, LLC. Sand lock valve

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003166655A (ja) * 2001-09-19 2003-06-13 Smc Corp ポペット形弁シール機構
KR100782900B1 (ko) * 2005-05-13 2007-12-06 이성수 볼밸브 및 이를 이용한 밸브 개폐시스템
KR100947423B1 (ko) * 2007-10-02 2010-03-12 신상열 버터플라이 밸브
CN100590334C (zh) * 2008-02-05 2010-02-17 朱晓丰 密封面无磨损硬密封球阀
CN102392902B (zh) * 2011-07-12 2013-02-27 天津祥嘉流体控制系统有限公司 一种顶装式球阀
CN102878311A (zh) * 2012-09-11 2013-01-16 宝钢不锈钢有限公司 一种电磁式双面密封阀
KR102042787B1 (ko) * 2012-09-20 2019-11-08 한국전력공사 배관 차단밸브의 소음저감구조
EP3306150A1 (fr) * 2016-10-04 2018-04-11 Paul Wurth S.A. Robinet-vanne pour usine chimique
CN107246495B (zh) * 2017-06-02 2018-12-28 永嘉县信诚科技服务有限公司 电动闸阀
CN110397749B (zh) * 2019-08-02 2020-09-01 立信阀门集团有限公司 一种闸阀
WO2021127310A1 (fr) * 2019-12-18 2021-06-24 Cameron International Corporation Système d'insert de vanne
KR102540036B1 (ko) * 2021-07-29 2023-06-05 (주) 유니플로 이물질 제거 기능을 가진 개폐밸브

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2165380A5 (fr) * 1971-12-15 1973-08-03 Acf Ind Inc
DE2945153A1 (de) * 1979-11-08 1981-05-27 M.I.B. S.P.A. Macchine Industriali Brevettate S.p.A., Casalserugo, Padua Kugelventil fuer stroemungsmittelleitungen mit beweglicher, feuersicherer ventilsitzanordnung, insbesondere fuer niedertemperaturbetrieb
GB2184212A (en) * 1985-12-17 1987-06-17 Waeschle Maschf Gmbh Valve
EP0690253A1 (fr) * 1994-07-01 1996-01-03 BORSIG KUGELHAHN GmbH Dispositif d'étanchement pour organes d'obturation
EP0763680A1 (fr) * 1995-09-14 1997-03-19 NUOVO PIGNONE S.p.A. Dispositif pour déplacer les sièges d'une vanne sphérique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2165380A5 (fr) * 1971-12-15 1973-08-03 Acf Ind Inc
DE2945153A1 (de) * 1979-11-08 1981-05-27 M.I.B. S.P.A. Macchine Industriali Brevettate S.p.A., Casalserugo, Padua Kugelventil fuer stroemungsmittelleitungen mit beweglicher, feuersicherer ventilsitzanordnung, insbesondere fuer niedertemperaturbetrieb
GB2184212A (en) * 1985-12-17 1987-06-17 Waeschle Maschf Gmbh Valve
EP0690253A1 (fr) * 1994-07-01 1996-01-03 BORSIG KUGELHAHN GmbH Dispositif d'étanchement pour organes d'obturation
EP0763680A1 (fr) * 1995-09-14 1997-03-19 NUOVO PIGNONE S.p.A. Dispositif pour déplacer les sièges d'une vanne sphérique

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10065714B4 (de) * 2000-12-29 2004-04-01 Torsten Burgmer Flachschieber
DE10065714A1 (de) * 2000-12-29 2002-07-11 Torsten Burgmer Flachschieber
DE102008017099A1 (de) 2008-04-02 2009-10-15 Torsten Burgmer Flachschieber
DE102008017099B4 (de) 2008-04-02 2018-06-14 Torsten Burgmer Flachschieber
CN102094993A (zh) * 2010-11-29 2011-06-15 河北联合大学 可靠密封的卸灰固定球阀
US11131393B2 (en) * 2015-05-07 2021-09-28 Sri Energy, Inc. Gate valve
US12013046B2 (en) 2015-05-07 2024-06-18 Sri Energy, Inc. Gate valve
US11549594B2 (en) 2015-05-07 2023-01-10 Sri Energy, Inc. Gate valve
CN107965585A (zh) * 2017-11-28 2018-04-27 永嘉县信诚科技服务有限公司 全自动高温无摩擦启闭电控闸阀
US11572956B2 (en) * 2018-11-01 2023-02-07 Oil Sttes Energy Services, L.L.C. Valve with pressure differential seating
US11655900B2 (en) * 2018-11-01 2023-05-23 Oil States Energy Services, L.L.C. Valve with pressure differential seating
US11480253B2 (en) * 2019-07-31 2022-10-25 Oil Patch Group, Inc. Hydralock frac valve
US20210239221A1 (en) * 2020-02-03 2021-08-05 Deltavalve, Llc Automated Line Blind
US11674602B2 (en) * 2020-02-03 2023-06-13 Deltavalve, Llc Automated line blind
US20220204865A1 (en) * 2020-12-31 2022-06-30 Tapcoenpro, Llc Systems and Methods for Purging an Isolation Valve with a Liquid Purge Medium
US11852258B2 (en) * 2020-12-31 2023-12-26 Tapcoenpro, Llc Systems and methods for purging an isolation valve with a liquid purge medium
CN112727829A (zh) * 2020-12-31 2021-04-30 兰州理工大学 通过调节流体流通面积实现阻尼调节的液压阀
US11767918B2 (en) 2021-06-24 2023-09-26 Nitro Fluids, LLC. Sand lock valve

Also Published As

Publication number Publication date
KR100259608B1 (ko) 2000-07-01
KR19980042500A (ko) 1998-08-17
WO1998025057A3 (fr) 1998-09-03
CN1215463A (zh) 1999-04-28

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