CN202140603U - Zero friction sealing valve - Google Patents

Zero friction sealing valve Download PDF

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Publication number
CN202140603U
CN202140603U CN201120257532U CN201120257532U CN202140603U CN 202140603 U CN202140603 U CN 202140603U CN 201120257532 U CN201120257532 U CN 201120257532U CN 201120257532 U CN201120257532 U CN 201120257532U CN 202140603 U CN202140603 U CN 202140603U
Authority
CN
China
Prior art keywords
valve
valve body
ring
sealing ring
seal
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
CN201120257532U
Other languages
Chinese (zh)
Inventor
王振国
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.)
Tieling Valve (group) Manufacturing Co Ltd
Original Assignee
Tieling Valve (group) Manufacturing 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 Tieling Valve (group) Manufacturing Co Ltd filed Critical Tieling Valve (group) Manufacturing Co Ltd
Priority to CN201120257532U priority Critical patent/CN202140603U/en
Application granted granted Critical
Publication of CN202140603U publication Critical patent/CN202140603U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A zero friction sealing valve is a ball valve or a butterfly valve. A valve core sealing ring is disposed on the outer circumference of a valve core, and a piston type valve body sealing ring assembly is arranged on the inner circumference of the valve body. The piston type valve body sealing ring assembly is provided with a circular-ring-shaped valve body sealing ring, a radial boss ring piston is disposed on the valve body sealing ring, and a radial recessed groove ring cylinder body is disposed on the inner circumference of the valve body. A front hydraulic medium inlet and outlet and a rear hydraulic medium inlet and outlet are arranged axially on the outer circumference of the valve body and respectively communicated with two axial ends of the radial recessed groove ring cylinder body. A sealing groove is arranged between the inner circumference of the valve body and the outer circumference of the piston type valve body sealing ring assembly, and a sealing ring is arranged inside the sealing groove. The zero friction sealing valve is capable of using a hydraulic medium for driving the piston type valve body sealing ring assembly to axially slide on the inner circumference of the valve body, enabling the valve body sealing ring to be combined with and separated from the valve core sealing ring, and achieving zero friction when the valve is opened and closed. When the piston type valve body sealing ring assembly slides, driving force is even, deformation or abrasion cannot occur easily, no dynamic seal points are arranged on the circumference of the valve body, manufacture and maintenance are convenient, and structure is simple.

Description

A kind of Zero-friction sealed valve
Technical field
The utility model relates to a kind of ball valve or butterfly valve, the valve seal spare of particularly a kind of ball valve or butterfly valve.
Background technique
Ball valve and butterfly valve have valve body, and the spool of the rotation bodily form is arranged in the valve body, and valve body and valve core chamber have sealing pair; Sealing pair is made up of with the valve seal ring that is set on the valve body inner circumference the seal spool ring that is set on the spool excircle, and the valve seal ring receives axial force along circumference, and the valve seal ring is close on the seal spool ring; Produce seal pressure, realize the sealing between spool and valve body, the seal pressure of valve seal ring and seal spool interannular is changeless; When ball valve or butterfly valve switching; Valve seal ring and seal spool ring will overcome the frictional force motion that the constant seal pressure of said fixing produces, and not only make ball valve or butterfly valve switching resistance big, also the sealing pair of easy abrasion valve body and valve core chamber; Cause ball valve or butterfly valve to reveal, influence the working life of valve.Seal pressure reduces even is decreased to zero when ball valve or butterfly valve are opened and closed, and in the prior art, discloses a kind of Zero-friction sealed valve among the Chinese patent ZL 2,004 2 0031953.6; This Zero-friction sealed valve is ball valve or butterfly valve, and ball valve or butterfly valve have valve body, and spool is arranged in the valve body; Valve body and valve core chamber have sealing pair, and sealing pair is made up of with the valve seal ring that is set on the valve body inner circumference the seal spool ring that is set on the spool excircle, and the valve seal ring is connected with bellows component; Bellows component is connected with hydraulic regulating device, and bellows component is the hydraulic regulation bellows component, and the hydraulic regulation bellows component has bellows; The bellows two ends are connected with support ring and annular pressing plate, and annular pressing plate is connected on the valve body with bolt, and support ring is pressed on the valve seal ring; The circumference that support ring is connected in valve seal ring one end has boss, on the valve shell body oil hydraulic pump is arranged, on the valve body, support ring boss place circumference is evenly equipped with 3 ~ 12 radial cams axles outward; The end of radial cams axle in valve body has cam; Cam is under the boss of support ring, but the end of camshaft outside valve body is connected with the oil hydraulic cylinder that drive cam shaft is rotated, and is connected with the hydraulic pressure transmission pipeline between oil hydraulic cylinder and oil hydraulic pump; The valve seal spare of this Zero-friction sealed valve is connected with the hydraulic regulation bellows component; The turnover of adjustment annular pressing plate construction bolt, the elastic force size of can regulate bellows sealing between spool and valve body can be adjusted under the best specific pressure works.Before ball valve or butterfly valve switching; The primer fluid press pump; Drive the cylinder pushes camshaft and rotate, the boss of the support ring that the cam promotion links to each other with the valve seal ring, support ring can overcome the elasticity of bellows and do axial motion; Let the valve seal ring leave the seal spool ring, the seal pressure that makes valve seal ring and seal spool interannular is zero.
This Zero-friction sealed valve has following deficiency:
1. when ball valve or butterfly valve opened and closed, the support ring that links to each other with the valve seal ring was to use the elastic force that goes to overcome spring along the thrust of 3 ~ 12 radial cams of circumference to do axial motion, and support ring is that multiple spot is stressed, and Driving force is not
Evenly, cause the support ring distortion easily, often switching also can cause the wearing and tearing of boss and cam;
2. valve body is evenly distributed in 3 ~ 12 radial cams axis holes, makes body movable sealing point many, gives and makes and maintenance increase trouble;
3. the valve body circumference is evenly equipped with the oil hydraulic cylinder that 3 ~ 12 drive cam shaft are rotated outward, and structure is complicated.
The model utility content
The purpose of the utility model is in order to overcome above-mentioned deficiency, when proposing a kind of switching, the valve seal ring is stressed evenly, valve body circumferential sealing point less, the better simply a kind of Zero-friction sealed valve of structure
The utility model is realized with following method.
This Zero-friction sealed valve is ball valve or butterfly valve; Ball valve or butterfly valve have valve body, and spool is arranged in the valve body, and valve body and valve core chamber have sealing pair; Sealing pair has the seal spool ring that is set on the spool excircle and the piston type valve body ring assembly on the valve body inner circumference; Piston type valve body ring assembly has the annular valve seal ring, and radially boss ring piston is arranged on the annular valve seal ring, and the radial groove ring cylinder body that matches with boss ring piston is radially arranged on the valve body inner circumference; There are former and later two hydraulic mediums to import and export on the valve body excircle vertically; Former and later two hydraulic mediums import and export respectively with radial groove ring Boring mill to two ends be connected, between the excircle of valve body inner circumference and piston type valve body ring assembly, seal groove is arranged, seal ring is arranged in the seal groove.
Fluted ring cylinder body on the valve body inner circumference of the utility model; The piston type valve body ring assembly of valve body inner circumference has the boss ring piston that matches with groove ring cylinder body; The front end of the piston type valve body ring assembly composition sealing pair that matches with the seal spool ring; There are former and later two hydraulic mediums that are connected respectively with groove ring cylinder body two ends to import and export on the valve body; Current, latter two hydraulic medium is imported and exported when being connected with high-pressure medium respectively, and hydraulic medium can promote the forward and backward vertically slip of piston type valve body ring assembly, make piston type valve body ring assembly and seal spool cyclization and with separate.
During Open valve, before Open valve, let piston type valve body ring assembly and seal spool ring separately earlier, in the Open valve process, not friction between piston type valve body ring assembly and the seal spool ring; During throttle down, behind throttle down, let piston type valve body ring assembly and seal spool cyclization also again, high-pressure medium acts on the piston type valve body ring assembly and produces seal pressure, guarantees the sealing of valve after closing.High-pressure medium available hydraulic pump supply, also available stream through the high pressure side of this valve liquid medium.
The utility model available hydraulic medium promotes piston type valve body ring assembly and in the valve body inner circumference, endwisely slips, make piston type valve body ring assembly and seal spool cyclization and with separately, when valve opening and closing, realize zero
Friction.
The utility model has been compared following advantage with the Zero-friction sealed valve in the above-mentioned prior art:
1. when ball valve or butterfly valve opened and closed, piston type valve body ring assembly was done axial motion with the force of hydraulic medium, and Driving force is even, and piston type valve body ring assembly is not yielding, is difficult for causing the wearing and tearing of piston type valve body ring assembly yet;
2. the valve body circumference has only two hydraulic mediums to import and export, and is the static seal point, does not have dynamic sealing point, manufacturing and easy to maintenance;
3. valve does not have oil hydraulic cylinder, and structure is simpler.
Below in conjunction with accompanying drawing, the utility model is done explanation further.
Description of drawings
Fig. 1 is the main cross-sectional schematic of Zero-friction sealed valve;
Fig. 2 is the I place enlarged diagram of Fig. 1;
Fig. 3 is the Zero-friction sealed valve partial schematic diagram that is connected with control valve;
Fig. 4 is the Zero-friction sealed valve partial schematic diagram that is connected with oil hydraulic pump and control valve.
Embodiment
Among Fig. 1, Fig. 2, Zero-friction sealed valve is a butterfly valve, and butterfly valve has valve body 1; Spool 2 is arranged in the valve body; Valve body and valve core chamber have sealing pair, and sealing pair has the seal spool ring 3 that is set on the spool excircle and the piston type valve body ring assembly 4 on the valve body inner circumference, and piston type valve body ring assembly has annular valve seal ring 5; Radially boss ring piston 6 is arranged on the annular valve seal ring; The radial groove ring cylinder body 7 that matches with boss ring piston is radially arranged on the valve body inner circumference, has former and later two hydraulic mediums to import and export 8,9 on the valve body excircle vertically, former and later two hydraulic mediums import and export respectively with radial groove ring Boring mill to two ends be connected; Between the excircle of valve body inner circumference and piston type valve body ring assembly, seal groove 10 is arranged, seal ring 11 is arranged in the seal groove.
This Zero-friction sealed valve can come control valve to open and close with the pressure of the liquid medium of this valve of flowing through, the Zero-friction sealed valve that comes control valve to open and close with the liquid medium of the Zero-friction sealed valve of flowing through is connected with control valve.
Among Fig. 3, the hydraulic medium of Zero-friction sealed valve 12 is imported and exported and is connected with control valve 13.
The above-mentioned Zero-friction sealed valve that is connected with control valve also can be connected with oil hydraulic pump.
Among Fig. 4, the hydraulic medium of Zero-friction sealed valve 14 is imported and exported and is connected with control valve 15, and control valve is connected with oil hydraulic pump 16.Oil hydraulic pump can be a hydraulic hand-pump, also can be engine-driven hydraulic pump.
Above-mentioned Zero-friction sealed valve is a butterfly valve, and Zero-friction sealed valve also can be a ball valve.

Claims (5)

1. a Zero-friction sealed valve is ball valve or butterfly valve; Ball valve or butterfly valve have valve body; Spool is arranged in the valve body, and valve body and valve core chamber have sealing pair, and sealing pair has the seal spool ring that is set on the spool excircle and the valve seal ring on the valve body inner circumference; It is characterized in that: the valve seal ring is a piston type valve body ring assembly; Piston type valve body ring assembly has the annular valve seal ring, and radially boss ring piston is arranged on the annular valve seal ring, and the radial groove ring cylinder body that matches with boss ring piston is radially arranged on the valve body inner circumference; There are former and later two hydraulic mediums to import and export on the valve body excircle vertically; Former and later two hydraulic mediums import and export respectively with radial groove ring Boring mill to two ends be connected, between the excircle of valve body inner circumference and piston type valve body ring assembly, seal groove is arranged, seal ring is arranged in the seal groove.
2. by the described Zero-friction sealed valve of claim 1, it is characterized in that: described hydraulic medium is imported and exported and is connected with control valve.
3. by the described Zero-friction sealed valve of claim 2, it is characterized in that: described control valve is connected with oil hydraulic pump.
4. by the described Zero-friction sealed valve of claim 3, it is characterized in that: described oil hydraulic pump is an electric hydraulic pump.
5. by the described Zero-friction sealed valve of claim 3, it is characterized in that: described oil hydraulic pump is a hydraulic hand-pump.
CN201120257532U 2011-07-21 2011-07-21 Zero friction sealing valve Expired - Fee Related CN202140603U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120257532U CN202140603U (en) 2011-07-21 2011-07-21 Zero friction sealing valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120257532U CN202140603U (en) 2011-07-21 2011-07-21 Zero friction sealing valve

Publications (1)

Publication Number Publication Date
CN202140603U true CN202140603U (en) 2012-02-08

Family

ID=45551661

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120257532U Expired - Fee Related CN202140603U (en) 2011-07-21 2011-07-21 Zero friction sealing valve

Country Status (1)

Country Link
CN (1) CN202140603U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016763A (en) * 2012-12-29 2013-04-03 能发伟业铁岭阀门股份有限公司 Dual-seal water inlet butterfly valve with valve body sealing ring provided with guide ring
CN107076315A (en) * 2014-08-25 2017-08-18 法雷奥电机控制系统公司 Engine control valve in motor vehicles
CN111594625A (en) * 2020-05-31 2020-08-28 朱豪镔 Butterfly valve
CN112984146A (en) * 2021-02-05 2021-06-18 陕西蓝箭航天技术有限公司 Ball valve device for liquid rocket engine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103016763A (en) * 2012-12-29 2013-04-03 能发伟业铁岭阀门股份有限公司 Dual-seal water inlet butterfly valve with valve body sealing ring provided with guide ring
CN107076315A (en) * 2014-08-25 2017-08-18 法雷奥电机控制系统公司 Engine control valve in motor vehicles
CN111594625A (en) * 2020-05-31 2020-08-28 朱豪镔 Butterfly valve
CN111594625B (en) * 2020-05-31 2021-09-21 上海阀门五厂有限公司 Butterfly valve
CN112984146A (en) * 2021-02-05 2021-06-18 陕西蓝箭航天技术有限公司 Ball valve device for liquid rocket engine

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120208

Termination date: 20150721

EXPY Termination of patent right or utility model