WO2006091117A1 - Ball valve with arrangement for separating sealing surfaces and corresponding method - Google Patents

Ball valve with arrangement for separating sealing surfaces and corresponding method Download PDF

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Publication number
WO2006091117A1
WO2006091117A1 PCT/PL2006/000009 PL2006000009W WO2006091117A1 WO 2006091117 A1 WO2006091117 A1 WO 2006091117A1 PL 2006000009 W PL2006000009 W PL 2006000009W WO 2006091117 A1 WO2006091117 A1 WO 2006091117A1
Authority
WO
WIPO (PCT)
Prior art keywords
ball
valve
way
ball valve
working
Prior art date
Application number
PCT/PL2006/000009
Other languages
French (fr)
Inventor
Przemyslaw Kapczynski
Krzysztof Bogdanski
Original Assignee
Zaklad Urzadzen Gazowniczych 'gazomet'
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 Zaklad Urzadzen Gazowniczych 'gazomet' filed Critical Zaklad Urzadzen Gazowniczych 'gazomet'
Publication of WO2006091117A1 publication Critical patent/WO2006091117A1/en

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
    • 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
    • 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
    • F16K5/205—Sealing effected by the flowing medium

Definitions

  • This invention relates to the way of reduction of pressure of seals on a ball closing component and to the system for reduction of pressure of seals on the ball closing component.
  • the invention is used during opening or closing of a ball valve, especially during starting the valve after a long time of standstill of the ball.
  • Such system is made of a set producing compressed medium, of supplying and distributional pipes and of devices separating and then supplying working medium to the body of the ball valve. Also holes, made in the body, connecting outer part of the system with working chambers made in the cavities, from the side of the ball closing component, among holders of packing rings and closing rings fastened to the body are parts of that system.
  • Realization of a known way require first shutting off gas flow and only then supply of a working medium to the ball closing component enabling reduction of pressure of seals on the ball closing component by their axial retraction from the ball closing component.
  • Supplying of medium requires building and connecting to the ball closing component the system, not related to the gas piping, as a result of which operating costs of the ball valve in the gas piping increase.
  • This invention allows for using of gas pressure which is in the gas piping, for reduction of the pressure of seals.
  • the way of reduction of pressure of seals on the ball closing component relying on supplying of working factor trough holes in the body to working chambers and then retracting of holders with packing rings from the ball closing component by reaction of pressure of working medium on holders characterised by that, gas from a gas piping to which the valve, which is to be started is fitted, is used as working medium.
  • Working medium with working pressure of gas piping is supplied from a by-pass pipe, installed in gas piping. Then, working medium is supplied by two-way valve and by three-way pipe to holes in the body and then by this holes to working chambers. During putting out of holders the decreasing space behind the holders is vented.
  • the system is degassed by two-way valve after opening or closing of the valve.
  • the system for reduction of pressure of seals on the ball closing component contains pipes and holes in the body of the ball valve, connected with working chambers, made in the cavities from the side of the ball closing component among holders of packing rings and cover rings.
  • the above mentioned system is characterised by that it has got a by-pass pipe fitted to gas piping, to which the ball valve, which is to be started, is installed. Moreover, a bypass pipe is fitted between inlet and outlet side of the ball valve. There is the two- way valve installed in the by-pass pipe. The second two-way valve and the three- way pipe are connected to the above mentioned two-way valve.
  • the system has got pipes, which, by their endings, are placed in the above mentioned three-way tube coupling and, by their second endings connected to the holes in body.
  • the holes in the body are connected with working chambers. Summary view of the surface of the holder from the side of the working chamber on a plane parallel to vertical axis of the valve is larger from the summary view of the plane of the holder on that plane assigned from the second side of the holder.
  • the solution makes the service of the valves better.
  • the reduction of pressure of the seals on the valve causes reduction of turning moment, necessary for opening or closing the valve, which makes starting of the valve easier, even in case of a long stage of standstill.
  • reduction of servicing moment of the valve enables to use smaller gears at hand operated servicing or it enables to use weaker power drives, which in turn reduces costs of production of the ball closing component. It is also essential that easily accessible gas from gas piping is used as working medium.
  • Gas pressure causes forces counter reacting to forces, which also derive from working pressure of gas, and additionally, apart from springs press on seals.
  • seals may be relieved and after relief they are pressed on the ball only by force of springs or only partly by that force. It depends on the difference of pressure resulting from difference of views of plane of holder from the side of working chamber and the opposite side of the holder.
  • the object of the invention is shown by an example of the drawing on which fig. 1 presents the system in general view with the ball valve in section and fig. 2 an enlarged detail A from fig. 1.
  • gas from a gas piping is used as a working medium.
  • the system for realization of the above mentioned way is made of the by-pass pipe 1 installed to gas piping 16 on which the ball valve 17, which is to be started, is fitted.
  • the by-pass pipe 1 is installed between the inlet side and outlet side of the ball valve 17. On the by-pass 1 there is installed the two-way valve 2 from which second two-way valve 14 and three-way pipe 3 are led. Pipes 18 are installed to the three-way pipe 3 and by its second ends are led to holes 4 which are in the body of the ball valve 17.
  • the holes 4 are connected next with working chambers 5.
  • the working chambers 5 are made in the captivities of the body of the ball valve F7 from the side of the ball closing component 13 between holders 6 of packing rings H) and cover rings 7 screwed down to the body, by means of bolts 8.
  • the holder 6 is sealed by rings 9 of type "O".
  • the space 19 on the opposite side of the working chamber 5 is connected with the atmosphere by hole 15.
  • the system works only when the summary view of the surface Fl of the holder 6, from the side of the working chamber 5, on the plane parallel to vertical axis of the ball valve 17, is larger than the summary view of the surface F2 of the holder 6 on that plane at the other side of the holder 6 .

Landscapes

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

Abstract

The method and the system according to the invention rely on that gas from gas piping (16) , to which a ball valve (17) is installed, is used as working medium. The working medium is delivered from a by-pass pipe Q) connected to gas piping (16) and next by means of a two-way valve (2) and three-way pipe (3) and hole (4) in the body of the ball valve (17) to working chambers (5) . As the result of supply of medium there is retraction of holders (S) with packing rings (10) from the ball closing component (13) , which enables txirning of the ball closing component (13) in the valve after a long time of standstill .

Description

BALL VALVE WITH ARRANGEMENT FOR SEPARATING SEALING SURFACES AND CORRESPONDING METHOD
This invention relates to the way of reduction of pressure of seals on a ball closing component and to the system for reduction of pressure of seals on the ball closing component. The invention is used during opening or closing of a ball valve, especially during starting the valve after a long time of standstill of the ball.
It is known, from description of an application of the invention P - 347255, the way of reduction of pressure of seals on the ball closing relying on retracting of holders from the ball; seals are located in these holders. This retracting takes place in the axis of gas flow and it is a result of supply, from outside, working medium, such as gas, most often compressed air or liquid. Preparing and supply of working medium takes place in the specially prepared for this purpose, additional system, made outside gas installation in which a valve is installed.
Such system is made of a set producing compressed medium, of supplying and distributional pipes and of devices separating and then supplying working medium to the body of the ball valve. Also holes, made in the body, connecting outer part of the system with working chambers made in the cavities, from the side of the ball closing component, among holders of packing rings and closing rings fastened to the body are parts of that system.
Realization of a known way require first shutting off gas flow and only then supply of a working medium to the ball closing component enabling reduction of pressure of seals on the ball closing component by their axial retraction from the ball closing component. Supplying of medium requires building and connecting to the ball closing component the system, not related to the gas piping, as a result of which operating costs of the ball valve in the gas piping increase.
To eliminate the above mentioned inconvenience the way of reduction of pressure of seals on the ball closing component and the system for realization of that way were worked out. This invention allows for using of gas pressure which is in the gas piping, for reduction of the pressure of seals.
According to the invention, the way of reduction of pressure of seals on the ball closing component relying on supplying of working factor trough holes in the body to working chambers and then retracting of holders with packing rings from the ball closing component by reaction of pressure of working medium on holders characterised by that, gas from a gas piping to which the valve, which is to be started is fitted, is used as working medium. Working medium with working pressure of gas piping is supplied from a by-pass pipe, installed in gas piping. Then, working medium is supplied by two-way valve and by three-way pipe to holes in the body and then by this holes to working chambers. During putting out of holders the decreasing space behind the holders is vented.
The system is degassed by two-way valve after opening or closing of the valve.
The way is realised with the assumption that the total view of the surface of the holders on a plane parallel to vertical axis of the valve from the side of supplying of working medium, is larger than the total view of the surface of the holder on the plane from the other side.
According to the invention, the system for reduction of pressure of seals on the ball closing component contains pipes and holes in the body of the ball valve, connected with working chambers, made in the cavities from the side of the ball closing component among holders of packing rings and cover rings. The above mentioned system is characterised by that it has got a by-pass pipe fitted to gas piping, to which the ball valve, which is to be started, is installed. Moreover, a bypass pipe is fitted between inlet and outlet side of the ball valve. There is the two- way valve installed in the by-pass pipe. The second two-way valve and the three- way pipe are connected to the above mentioned two-way valve.
The system has got pipes, which, by their endings, are placed in the above mentioned three-way tube coupling and, by their second endings connected to the holes in body.
The holes in the body are connected with working chambers. Summary view of the surface of the holder from the side of the working chamber on a plane parallel to vertical axis of the valve is larger from the summary view of the plane of the holder on that plane assigned from the second side of the holder.
The solution, according to the invention, makes the service of the valves better. The reduction of pressure of the seals on the valve causes reduction of turning moment, necessary for opening or closing the valve, which makes starting of the valve easier, even in case of a long stage of standstill. Moreover, reduction of servicing moment of the valve enables to use smaller gears at hand operated servicing or it enables to use weaker power drives, which in turn reduces costs of production of the ball closing component. It is also essential that easily accessible gas from gas piping is used as working medium.
Gas pressure causes forces counter reacting to forces, which also derive from working pressure of gas, and additionally, apart from springs press on seals. Thanks to the invention, seals may be relieved and after relief they are pressed on the ball only by force of springs or only partly by that force. It depends on the difference of pressure resulting from difference of views of plane of holder from the side of working chamber and the opposite side of the holder. The object of the invention is shown by an example of the drawing on which fig. 1 presents the system in general view with the ball valve in section and fig. 2 an enlarged detail A from fig. 1.
In the way of reduction of pressure of seals on the ball closing component, according to the invention, gas from a gas piping is used as a working medium.
Working medium with gas piping working pressure is delivered from the by-pass pipe 1 installed in gas piping VS. By-pass piping 1 is installed between inlet side and outlet side of the ball valve F7, which is to be started. Then, working medium, by two-way valve 2 and three-way pipe 3 is delivered to holes 4 and next to working chambers 5 in the ball valve 17. As a result of action of pressure of working medium, holders 6 with packing rings K) are retracted from the ball closing component 13 in Δ section and strings JJ, are deflected. This causes relief of seal and in that way reduction of pressure of packing rings JJ) which enables opening or closing of the ball valve 17 by means of rotation of stem 12 and the ball closing component 13 installed to it. During the retraction of holders 6 decreasing spaces 19 behind the holder 6 are vented. This venting is by holes 15 connected to the atmosphere .The system is degassed by two-way valve 14 after closing or opening of a ball valve 17.
The system for realization of the above mentioned way is made of the by-pass pipe 1 installed to gas piping 16 on which the ball valve 17, which is to be started, is fitted.
The by-pass pipe 1 is installed between the inlet side and outlet side of the ball valve 17. On the by-pass 1 there is installed the two-way valve 2 from which second two-way valve 14 and three-way pipe 3 are led. Pipes 18 are installed to the three-way pipe 3 and by its second ends are led to holes 4 which are in the body of the ball valve 17.
The holes 4 are connected next with working chambers 5. The working chambers 5 are made in the captivities of the body of the ball valve F7 from the side of the ball closing component 13 between holders 6 of packing rings H) and cover rings 7 screwed down to the body, by means of bolts 8. The holder 6 is sealed by rings 9 of type "O". The space 19 on the opposite side of the working chamber 5 is connected with the atmosphere by hole 15.
The system works only when the summary view of the surface Fl of the holder 6, from the side of the working chamber 5, on the plane parallel to vertical axis of the ball valve 17, is larger than the summary view of the surface F2 of the holder 6 on that plane at the other side of the holder 6 .

Claims

Claims
1. The way of reduction of pressure of seals on a ball closing component relying on supplying working medium through holes in the body to working chambers and then retracting of holders with packing rings from the ball closing component by means of operating by pressure of working medium on holders, characterised in that gas from a gas piping (16), to which the ball valve (17), which is to be started, is installed, is used as working medium and that working medium with working pressure of a gas piping (16) is delivered to working chambers (5) by two-way valve (2), three— way pipe (3) and tubes Q8), from a by-pass pipe (Y) connected to gas piping (16), and during retraction of holders (6) the spaces (19) sited on the opposite side of working chambers (5) are vented, whereas the assembly is degassed after closing or opening of the ball valve (17), while that way is realised with the assumption that the summary view of the surface (Fl) of the holder (6) on the plane parallel to vertical axis of the ball valve (17), from the side of supply of working medium is larger than the summary view of the surface (F2) of the holder (6) on that plane from the second side of the holder (6).
2. The system for reduction of pressure of seals on the ball closing component equipped with pipes and having holes, in the body of the ball valve , connected with working chambers, made in the cavities of the body, from the side of the ball closing component, among packing rings and the cover rings, characterised in that it has got the by-pass pipe (V) connected to the gas piping (16) in which the ball valve, which is to be started, is installed, moreover the by-pass pipe (V) is installed between the inlet and outlet side of a ball valve (VT) and the two-way valve (2) is fitted to the bypass pipe (V), from the two-way valve (2) the second two-way valve (14) and three-way pipe (3) are led out, pipes (18) are fitted to that three-way pipe (3) and led out, by their second endings to holes (4) in the body of the ball valve (VT), holes (4) are connected with working chambers (5), moreover, the summary view of the surface (FV) of the holder (6) on the plane parallel to vertical axis of the ball valve (VT) from the side of the working chamber (5) is larger than the summary view of the surface (F2) of the holder (6) on that plane from the second side of the holder (6).
PCT/PL2006/000009 2005-02-28 2006-02-10 Ball valve with arrangement for separating sealing surfaces and corresponding method WO2006091117A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL373204A PL208980B1 (en) 2005-02-28 2005-02-28 Method for reducing force on gaskets of ball closing component and system designed to reduce the force exerted on the gasket of a ball closing component
PLP-373204 2005-02-28

Publications (1)

Publication Number Publication Date
WO2006091117A1 true WO2006091117A1 (en) 2006-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/PL2006/000009 WO2006091117A1 (en) 2005-02-28 2006-02-10 Ball valve with arrangement for separating sealing surfaces and corresponding method

Country Status (2)

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PL (1) PL208980B1 (en)
WO (1) WO2006091117A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094993A (en) * 2010-11-29 2011-06-15 河北联合大学 Reliable seal dust discharging fixed ball valve
CN102242812A (en) * 2010-05-14 2011-11-16 蔡毅 Upper-mounting-type hydraulic ball valve
CN102275727A (en) * 2011-05-15 2011-12-14 徐州衡器厂有限公司 Air balance control device
CN102425678A (en) * 2011-12-05 2012-04-25 广东明珠流体机械有限公司 Mobile sealed valve
CN103090042A (en) * 2013-02-03 2013-05-08 西麦克阀门制造有限公司 Ball valve
CN103256400A (en) * 2013-05-27 2013-08-21 超达阀门集团股份有限公司 Top assembling type ball valve with bidirectional sealing function and capable of achieving on-line disassembly and assembly
CN106763875A (en) * 2017-01-12 2017-05-31 盐城市圣泰阀门有限公司 A kind of superhigh temperature valve
CN106949259A (en) * 2017-05-18 2017-07-14 哈尔滨电机厂有限责任公司 Hydroturbine water intake ball valve oil pressure input exits L-type metal sealing certainly
CN109058501A (en) * 2018-09-04 2018-12-21 陈永杰 A kind of ball valve
CN111577929A (en) * 2020-04-30 2020-08-25 方正阀门集团股份有限公司 Ball valve with DBB and DIB functions exchanged
US11454327B2 (en) * 2020-08-07 2022-09-27 Commando Pressure Control, Inc. Methods and systems associated with a high pressure valve system
US11506293B2 (en) * 2020-07-17 2022-11-22 Goodrich Corporation Valve assembly
CN116241679A (en) * 2023-03-03 2023-06-09 江苏远洋阀门智控股份有限公司 Quick cut-off medium pneumatic-hydraulic ball valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1174521A (en) * 1956-07-11 1959-03-12 Charmilles Sa Ateliers Rotary gate valve
US3013766A (en) * 1958-01-13 1961-12-19 Baldwin Lima Hamilton Corp Spherical valve
GB1214862A (en) * 1967-04-05 1970-12-09 Ckd Blansko Zd Y Jiriho Dimitr Improvements in or relating to fluid-flow control valves
FR2353775A1 (en) * 1976-06-03 1977-12-30 Vevey Atel Const Mec Valve for flow to hydraulic turbine - has sliding sleeve to control low flow between rings and piston faces when starting
GB2213564A (en) * 1988-01-08 1989-08-16 Flexitallic International Valv Ball valve
EP1258662A2 (en) * 2001-05-17 2002-11-20 Weinhold, Karl Dipl.-Ing. (FH) Device for shutting off a fluid flow in a pipeline by a a ball-shaped shut-off member
US20040020536A1 (en) * 2001-04-23 2004-02-05 Przemyslaw Kapczynski The way of replacement of main seals in a ball valve and a ball valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1174521A (en) * 1956-07-11 1959-03-12 Charmilles Sa Ateliers Rotary gate valve
US3013766A (en) * 1958-01-13 1961-12-19 Baldwin Lima Hamilton Corp Spherical valve
GB1214862A (en) * 1967-04-05 1970-12-09 Ckd Blansko Zd Y Jiriho Dimitr Improvements in or relating to fluid-flow control valves
FR2353775A1 (en) * 1976-06-03 1977-12-30 Vevey Atel Const Mec Valve for flow to hydraulic turbine - has sliding sleeve to control low flow between rings and piston faces when starting
GB2213564A (en) * 1988-01-08 1989-08-16 Flexitallic International Valv Ball valve
US20040020536A1 (en) * 2001-04-23 2004-02-05 Przemyslaw Kapczynski The way of replacement of main seals in a ball valve and a ball valve
EP1258662A2 (en) * 2001-05-17 2002-11-20 Weinhold, Karl Dipl.-Ing. (FH) Device for shutting off a fluid flow in a pipeline by a a ball-shaped shut-off member

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102242812A (en) * 2010-05-14 2011-11-16 蔡毅 Upper-mounting-type hydraulic ball valve
CN102094993A (en) * 2010-11-29 2011-06-15 河北联合大学 Reliable seal dust discharging fixed ball valve
CN102275727A (en) * 2011-05-15 2011-12-14 徐州衡器厂有限公司 Air balance control device
CN102425678A (en) * 2011-12-05 2012-04-25 广东明珠流体机械有限公司 Mobile sealed valve
CN102425678B (en) * 2011-12-05 2014-05-14 广东明珠流体机械有限公司 Mobile sealed valve
CN103090042A (en) * 2013-02-03 2013-05-08 西麦克阀门制造有限公司 Ball valve
CN103256400A (en) * 2013-05-27 2013-08-21 超达阀门集团股份有限公司 Top assembling type ball valve with bidirectional sealing function and capable of achieving on-line disassembly and assembly
CN106763875B (en) * 2017-01-12 2018-03-20 江苏圣泰阀门有限公司 A kind of superhigh temperature valve
CN106763875A (en) * 2017-01-12 2017-05-31 盐城市圣泰阀门有限公司 A kind of superhigh temperature valve
CN106949259A (en) * 2017-05-18 2017-07-14 哈尔滨电机厂有限责任公司 Hydroturbine water intake ball valve oil pressure input exits L-type metal sealing certainly
CN109058501A (en) * 2018-09-04 2018-12-21 陈永杰 A kind of ball valve
CN109058501B (en) * 2018-09-04 2019-10-25 杭州金山仪表阀业有限公司 A kind of ball valve
CN111577929A (en) * 2020-04-30 2020-08-25 方正阀门集团股份有限公司 Ball valve with DBB and DIB functions exchanged
US11506293B2 (en) * 2020-07-17 2022-11-22 Goodrich Corporation Valve assembly
US11454327B2 (en) * 2020-08-07 2022-09-27 Commando Pressure Control, Inc. Methods and systems associated with a high pressure valve system
CN116241679A (en) * 2023-03-03 2023-06-09 江苏远洋阀门智控股份有限公司 Quick cut-off medium pneumatic-hydraulic ball valve
CN116241679B (en) * 2023-03-03 2023-09-08 江苏远洋阀门智控股份有限公司 Quick cut-off medium pneumatic-hydraulic ball valve

Also Published As

Publication number Publication date
PL208980B1 (en) 2011-07-29
PL373204A1 (en) 2006-09-04

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