CN100570186C - On-off seat globe valve - Google Patents

On-off seat globe valve Download PDF

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Publication number
CN100570186C
CN100570186C CNB2008100602782A CN200810060278A CN100570186C CN 100570186 C CN100570186 C CN 100570186C CN B2008100602782 A CNB2008100602782 A CN B2008100602782A CN 200810060278 A CN200810060278 A CN 200810060278A CN 100570186 C CN100570186 C CN 100570186C
Authority
CN
China
Prior art keywords
valve
valve seat
liquid pressure
matrix
pressure pipe
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.)
Expired - Fee Related
Application number
CNB2008100602782A
Other languages
Chinese (zh)
Other versions
CN101251196A (en
Inventor
王汉光
骆薛平
赵承远
戚永东
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.)
ZHEJIANG WEITENG VALVE CO Ltd
Original Assignee
ZHEJIANG WEITENG VALVE CO Ltd
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 ZHEJIANG WEITENG VALVE CO Ltd filed Critical ZHEJIANG WEITENG VALVE CO Ltd
Priority to CNB2008100602782A priority Critical patent/CN100570186C/en
Publication of CN101251196A publication Critical patent/CN101251196A/en
Application granted granted Critical
Publication of CN100570186C publication Critical patent/CN100570186C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The present invention relates to a kind of on-off seat globe valve, comprise valve body, valve gap, valve rod and ball core, in the valve body of ball core one side, be provided with slidably valve seat matrix, the valve seat matrix is provided with the valve seat that matches with the sealing surface of ball core, the both sides of valve seat matrix be provided with respectively the left and right slip of control valve seat matrix unlatching gas/liquid pressure pipe and close the gas/liquid pressure pipe.The present invention has overcome in the prior art that the operational torque of ordinary ball valve is big, the easy fretting wear of sealing surface, working life is short, pretightening force is non-adjustable, and generally can not be used for Flow-rate adjustment, the defective that Applicable scope is narrower, by above-mentioned design, sealing pair can clutch realize that contactless, nothing rubs, zero wearing and tearing in the switching process, and operational torque is little, and sealability is strong, and realizes the flow regulating function to the pipeline medium simultaneously.

Description

On-off seat globe valve
Technical field
The present invention relates to a kind of on-off seat globe valve.
Background technique
The ball valve genus blocks the class valve, be mainly used in the MEDIA FLOW of connecting or blocking in the pipeline, the sealing principle of ball valve, be to contact with spheroid according to two ends, preceding left and right sides valve seat to obtain sealability, the size of contact strength (pretightening force that is called sealing again), sealability is played crucial effects, pretightening force is big more, sealability is reliable more, and along with the frictional force between valve seat and spheroid increases, the frictionally damage of sealing surface is just big, and the moment of rotation of valve is directly proportional with frictional force, therefore, the opening-closing process of ball valve interior spheroid rotation is the pretightening force that operational torque overcomes sealing, the frictional force of material and the process of deadweight also are the processes of sealing pair fretting wear.Ball valve generally has only the working position of " complete opening " and " closing fully " in working condition, the working position is 90 degree and arranges, any orientation pause holdup time of the mid span of 0-90 degree is long, all may cause damage to sealing pair, so ball valve generally can not be used for Flow-rate adjustment, Applicable scope is narrower.
Summary of the invention
The operational torque of ordinary ball valve is big in order to overcome in the prior art, the easy fretting wear of sealing surface, working life is short, pretightening force is non-adjustable, and generally can not be used for Flow-rate adjustment, the problem that Applicable scope is narrower, the invention provides a kind of on-off seat globe valve, this on-off seat globe valve sealing pair in the switching process can clutch realize that contactless, nothing rubs, zero wearing and tearing, and operational torque is little, and sealability is strong, and realizes the flow regulating function to the pipeline medium simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: comprise valve body, valve gap, valve rod and ball core, in the valve body of ball core one side, be provided with slidably valve seat matrix, the valve seat matrix is provided with the valve seat that matches with the sealing surface of ball core, the both sides of valve seat matrix be provided with respectively the left and right slip of control valve seat matrix unlatching gas/liquid pressure pipe and close the gas/liquid pressure pipe.
The valve seat matrix is provided with the valve seat cylinder sleeve, forms between the bulge loop of valve seat cylinder sleeve and valve seat matrix periphery and opens the unlatching active chamber that the gas/liquid pressure pipe is connected and seal, the bulge loop of valve seat matrix periphery and close the active chamber of closing that formation seals between the gas/liquid pressure pipe.
Open the gas/liquid pressure pipe and be arranged on the valve body, close the gas/liquid pressure pipe and be arranged on the valve gap.
Be provided with elastic component between valve seat matrix and the valve gap.
The present invention has the following advantages by above-mentioned specific design:
1, sealing pair is real in opening-closing process realizes that contactless, nothing rubs, zero wearing and tearing, the working life of greatly having improved ball valve.
2, spheroid can be stagnated the arbitrary position in the aperture of 0-90 degree, makes the Flow-rate adjustment function of ball valve realization to the pipeline medium, has the function of adjusting, throttle valve.
3, the seal pressure of valve can compensate, can adjust, and sealability get a qualitative improvement.
When 4, valve opening and closing was operated, operational torque was not sealed the influence of active forces such as pretightening force, pipeline pressure, and operational torque is minimum.
Description of drawings
Below in conjunction with drawings and Examples detailed content of the present invention is described.
Accompanying drawing is a structural representation of the present invention.
Embodiment
As shown in the figure, the present invention includes valve body 1, valve gap 2, valve rod 3 and ball core 4, in the valve body 1 of ball core 4 one sides, be provided with slidably valve seat matrix 5, valve seat matrix 5 is provided with the valve seat 6 that matches with the sealing surface of ball core 4, the both sides of valve seat matrix 5 be provided with respectively the 5 left and right slips of control valve seat matrix unlatching gas/liquid pressure pipe 13 and close gas/liquid pressure pipe 7.Open gas/liquid pressure pipe 6 and can be arranged on the valve body 1, close gas/liquid pressure pipe 7 and can be arranged on the valve gap 2.Valve seat matrix 5 is provided with valve seat cylinder sleeve 8, form between the bulge loop 12 of valve seat cylinder sleeve 8 and valve seat matrix 5 peripheries and open the unlatching active chamber 9 that gas/liquid pressure pipe 13 is connected and seal, the bulge loop 12 of valve seat matrix 5 peripheries and close that formation seals between the gas/liquid pressure pipe 7 close active chamber 10.Be provided with elastic component 11 between valve seat matrix 5 and the valve gap 2, elastic component 11 adopts spring or shell fragment.When valve is made open operation, open gas/liquid pressure pipe 13 and connect, gas/liquid pressure enters the unlatching active chamber 9 of sealing, promoting valve seat matrix 5 and valve seat 6 slides along the pipeline axis, valve seat 6 is broken away from and the contacting of ball core 4, and under the minimum situation of operational torque, ball core 4 can be rotated counterclockwise unlatching.When valve is made closing operation, ball core 4 can turn clockwise, closing gas/liquid pressure pipe 7 connects, what gas/liquid pressure entered sealing closes active chamber 10, promote valve seat matrix 5 and valve seat 6 along pipeline axis reverse slide, valve seat 6 tightly is pressed against on the sealing surface of ball core 4 to the seal pressure setting value, and closing motion is finished.

Claims (5)

1, a kind of on-off seat globe valve, comprise valve body, valve gap, valve rod and ball core, it is characterized in that in the valve body (1) of ball core (4) one sides, being provided with slidably valve seat matrix (5), valve seat matrix (5) is provided with the valve seat (6) that matches with the sealing surface of ball core (4), and the both sides of valve seat matrix (5) are provided with the unlatching gas/liquid pressure pipe (13) of the left and right slip of control valve seat matrix (5) respectively and close gas/liquid pressure pipe (7).
2, a kind of on-off seat globe valve according to claim 1, it is characterized in that valve seat matrix (5) is provided with valve seat cylinder sleeve (8), form between the bulge loop (12) of valve seat cylinder sleeve (8) and valve seat matrix (5) periphery and open the unlatching active chamber (9) that gas/liquid pressure pipe (13) is connected and seal, the bulge loop (12) of valve seat matrix (5) periphery and close that formation seals between the gas/liquid pressure pipe (7) close active chamber (10).
3, a kind of on-off seat globe valve according to claim 1 and 2 is characterized in that opening gas/liquid pressure pipe (13) and is arranged on the valve body (1), closes gas/liquid pressure pipe (7) and is arranged on the valve gap (2).
4, a kind of on-off seat globe valve according to claim 1 and 2 is characterized in that being provided with elastic component (11) between valve seat matrix (5) and the valve gap (2).
5, a kind of on-off seat globe valve according to claim 3 is characterized in that being provided with elastic component (11) between valve seat matrix (5) and the valve gap (2).
CNB2008100602782A 2008-04-03 2008-04-03 On-off seat globe valve Expired - Fee Related CN100570186C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2008100602782A CN100570186C (en) 2008-04-03 2008-04-03 On-off seat globe valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2008100602782A CN100570186C (en) 2008-04-03 2008-04-03 On-off seat globe valve

Publications (2)

Publication Number Publication Date
CN101251196A CN101251196A (en) 2008-08-27
CN100570186C true CN100570186C (en) 2009-12-16

Family

ID=39954727

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2008100602782A Expired - Fee Related CN100570186C (en) 2008-04-03 2008-04-03 On-off seat globe valve

Country Status (1)

Country Link
CN (1) CN100570186C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094993B (en) * 2010-11-29 2012-07-04 河北联合大学 Reliable seal dust discharging fixed ball valve
CN102889394A (en) * 2011-07-21 2013-01-23 骆薛平 Inward depressurizing high pressure soft sealing ball valve
CN102425678B (en) * 2011-12-05 2014-05-14 广东明珠流体机械有限公司 Mobile sealed valve
CN105156708B (en) * 2015-08-19 2017-09-05 江苏神通阀门股份有限公司 A kind of micro- torque ball valve
CN105134993A (en) * 2015-10-20 2015-12-09 洪元生 Double-orbit ball valve
US10544868B2 (en) 2018-02-14 2020-01-28 Fisher Controls International Llc Ball valve having an adjustable trim arrangement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578019A (en) * 1968-01-04 1971-05-11 Marco Turolla Relief valve unit for hydraulic pressure lines
US4095742A (en) * 1976-08-26 1978-06-20 Virginia Chemicals Inc. Balanced single port thermostatic expansion valve

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578019A (en) * 1968-01-04 1971-05-11 Marco Turolla Relief valve unit for hydraulic pressure lines
US4095742A (en) * 1976-08-26 1978-06-20 Virginia Chemicals Inc. Balanced single port thermostatic expansion valve

Also Published As

Publication number Publication date
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Granted publication date: 20091216

Termination date: 20150403

EXPY Termination of patent right or utility model