CN107842628A - The universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure - Google Patents
The universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure Download PDFInfo
- Publication number
- CN107842628A CN107842628A CN201711210487.6A CN201711210487A CN107842628A CN 107842628 A CN107842628 A CN 107842628A CN 201711210487 A CN201711210487 A CN 201711210487A CN 107842628 A CN107842628 A CN 107842628A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- face
- floating ring
- pressing plate
- 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.)
- Granted
Links
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 8
- 238000007667 floating Methods 0.000 claims abstract description 46
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000003825 pressing Methods 0.000 claims abstract description 19
- 238000005188 flotation Methods 0.000 claims abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004540 process dynamic Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- F16K5/06—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
-
- 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
Abstract
The present invention relates to a kind of universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure, including valve body, valve seat, valve element, valve rod, seal and installed part, valve element to have the ball face sealing face to cooperate with valve seat；Radial floating device is provided with mainly between valve seat and valve body, the radial floating device is made up of floating ring and pressing plate, floating ring is fitted on the radial direction step in valve channel by pressing plate, dynamic sealing coordinates between radial direction step and pressing plate end face in floating ring both ends of the surface and valve channel, there is flotation chamber, valve seat both sides end face is arranged between the inside step in footpath of pressing plate end face and floating ring endoporus between floating ring periphery and valve channel inner round wall.The concentricity in adjust automatically valve element ball face sealing face and valve seat ball face sealing face in valve element closing process, there is good seal performance, production yield rate height, long product lifecycle.
Description
Technical field
The invention belongs to valve field, more particularly to a kind of ball face sealing valve of 90 ° of revolutions.The present invention is applied to high temperature
The ball face sealing valves of 90 ° of revolutions such as the whole world of high-pressure medium operating mode, hemisphere, butterfly.
Background technology
Ball valve has the advantages that simple in construction, conveniently opening and closing, full-bore circulation, flow resistance are small, is widely used in national economy
The medium delivery pipe road in each field, its structure mainly include valve body, bonnet, valve seat, spheroid, valve rod, spheroid by valve rod installation with
Body cavity, the ball face sealing pair that spheroid cooperates with valve seat composition, is sealed between valve seat periphery and valve channel endoporus
Coordinate, 90 ° of rotations of spheroid are driven by valve rod by transmission device, realize the keying operation of ball valve.Its major defect is：Valve seat footpath
To valve channel inwall is fixedly mounted on, valve seat center line is fixed on valve channel center line in theory, still, sphere installation
After body cavity, more or less there is deviation between its sphere center position and valve seat center line, and spheroid sphere and valve seat
All there is mismachining tolerance in ball face sealing face, cause spheroid sphere and the concentricity in valve seat ball face sealing face deviation to be present, make spheroid
The seal pressure of sealing pair circumferencial direction is inconsistent when coordinating with valve seat, constrains the raising of the sealing property of ball valve, error compared with
Leaked when big, this be cause existing hard seal ball valve dispatch from the factory pressure test qualification rate it is low the main reason for.And using
During increase the abrasion of spheroid and sealing surface of seat, reduce product service life.
The content of the invention
The purpose of the present invention is the shortcomings that presence for prior art, there is provided one kind being capable of adjust automatically valve element ball face sealing
Because coordinating concentricity caused by installing and processing, valve element coordinates good concentricity with valve seat, close for face and valve seat ball face sealing face
It is better than pressure uniformity to seal secondary circumferential sealing, good seal performance, finished product rate is high, and the Bidirectional pressure of long product lifecycle is universal certainly
Dynamic compensation valve seat pressure plate type valve.
Technical scheme includes valve body, valve seat, valve element, valve rod, seal and installed part, and valve element has with valve seat
The ball face sealing face of mutual cooperation；Radial floating device is provided with mainly between valve seat and valve body, the radial floating device is by floating
Rotating ring and pressing plate composition, floating ring are fitted on the radial direction step in valve channel by pressing plate, and floating ring both ends of the surface are led to valve body
Dynamic sealing coordinates between radial direction step and pressing plate end face in road, has between floating ring periphery and valve channel inner round wall floating
Dynamic chamber, valve seat both sides end face are arranged between the inside step in footpath of pressing plate end face and floating ring endoporus.
Preferably, valve seat has axle between the inside step in footpath of the radial end face and floating ring endoporus of sealing surface side
To flying height, valve seat periphery coordinates with floating ring inner hole wall dynamic sealing.
Preferably, valve element is formed with the upper rotary shaft and Shaft of disjunctor, and valve element is installed by upper rotary shaft and Shaft
In body cavity, it is connected with each other between valve rod lower end periphery and the axis hole of upper rotary shaft using spline.
It is an advantage of the invention that radial floating device is provided between valve seat and valve body, when valve element sphere sealing surface and valve seat
When Concentricity tolerance be present because of processing and installation error between ball face sealing face, promote valve seat radially floating in valve element closing process
Dynamic, the concentricity in adjust automatically valve element ball face sealing face and valve seat ball face sealing face, making both ball face sealing faces, sealing is matched somebody with somebody with one heart
Close, reach sealing pair circumferential sealing than pressure uniformity, there is good seal performance, production yield rate height, long product lifecycle
The features such as.
Brief description of the drawings
Fig. 1 is the side-mounted structural representation of the present invention.
Fig. 2 is dress formula structural representation in the present invention.
Fig. 3 is the structural representation of butterfly sphere core of the present invention.
Embodiment
The universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure as shown in Figure 1 and Figure 2, including valve body 1, valve seat 5, valve element
7th, valve rod, seal and installed part, valve element 7 have the ball face sealing face to cooperate with valve seat, and valve element 7 is using on a flap
Spherical seal ring composition is fixedly mounted, the ball face sealing face of 90 ° of revolutions such as global body, hemisphere, V-type spheroid can also be used
Structure；Radial floating device is provided between valve seat 5 and valve body 1, the radial floating device is made up of floating ring 3 and pressing plate 6, is floated
Ring 3 is fitted on the radial direction step in the passage of valve body 1 by pressing plate 6, the both ends of the surface of floating ring 3 and the radial direction step in the passage of valve body 1
And dynamic sealing coordinates between the end face of pressing plate 6, first is installed between the radial direction step in the left side of floating ring 3 and the passage of valve body 1
Sealing ring 8, coordinated between the right side of floating ring 3 and the end face of pressing plate 6 using minute surface dynamic sealing, the left side of floating ring 3 and valve body 1
The very stiff and demanding sealing of minute surface can also be used between radial direction step in passage, improves heat resistance, pressing plate 6 is sealed solid by bolt 10
Dingan County has flotation chamber 2, makes floating ring 3 can in the passage of valve body 1 between the periphery of floating ring 3 and the passage inner round wall of valve body 1
To be arranged on the end face of pressing plate 6 and the inside step in footpath of the endoporus of floating ring 3 to movement, the both sides end face of valve seat 5 in the channel internal diameter of valve body 1
Between, floating ring 3 drives valve seat 5 integrally to move radially.
Valve seat 5 has axially floating between the radial end face of sealing surface side and the inside step in footpath of the endoporus of floating ring 3
Dynamic gap 4, the periphery of valve seat 5 coordinate with the inner hole wall dynamic sealing of floating ring 3, valve seat 5 is axially moved in the endoporus of floating ring 3
It is dynamic, prevent that high-temperature expansion is stuck between valve element 7 and valve seat 5, the periphery of valve seat 5 uses O-ring seal 9 with the inner hole wall of floating ring 3
Sealing.
Butterfly spring is set between valve seat 5 and the radial end face of pressing plate 6, and butterfly spring is by valve seat 5 to the endoporus of floating ring 3
The inside step direction in footpath compresses, seal pressure when increase valve element 7 coordinates with the sealing of valve seat 5, and makes valve seat 5 in floating ring 3
Hole can move axially, and prevent that valve element 7 and the high temperature of valve seat 5 are stuck.
Valve element 7 is formed with the upper rotary shaft and Shaft of disjunctor, and valve element 7 is arranged on valve body by upper rotary shaft and Shaft
It is connected with each other between the axis hole of 1 inner chamber, valve rod lower end periphery and upper rotary shaft using spline.Medium caused by valve element 7 to pushing away
Power is avoided prior art media and thrust caused by valve element 7 is lacked by valve rod pressure-bearing by upper rotary shaft and Shaft pressure-bearing
Fall into, reduce the radial pressure of valve rod, reduce and open and close torque.On the external cylindrical surface of upper rotary shaft and Shaft and valve body 1
Axle sleeve is set between axis hole, the rotating friction force of rotary shaft and Shaft in reduction.
Valve rod is tightly connected by link and valve body 1, and link fixing seal is arranged on the upper end of valve body 1, upper rotary shaft
External cylindrical surface and the dynamic mating connection of axis hole of link lower end, set packing seal to fill between valve rod middle part periphery and link
Put, valve rod upper end is connected with the transmission mechanism on the support of link upper end, and Shaft is close by lower cover and valve body 1
Envelope connection, lower cover fixing seal are arranged on the lower end of valve body 1, and Shaft external cylindrical surface and the dynamic cooperation of axis hole of lower cover upper end connect
Connect, valve element 7 uses side-mounted structure, i.e. valve element 7 loads inner chamber from the passage of valve body 1, as shown in Figure 1.Valve element 7 can use butterfly
Spherical structure, that is, the butterfly plate with ball face sealing face is used, as shown in Figure 3.
Valve rod is tightly connected by upper lid with valve body 1, and upper lid fixing seal is arranged on the upper end of valve body 1, and upper rotary shaft is cylindrical
Cylinder and the dynamic mating connection of axis hole of upper lid lower end, stuffing seal, valve rod are set between valve rod middle part periphery and upper lid
Upper end be connected with the transmission mechanism on the support held on the upper lid, and the upper dress formula structure of the use of valve element 7, i.e. valve element 7 are from Shang Gai
Place loads the inner chamber of valve body 1, as shown in Figure 2.
Valve body 1 uses integrally casting or forging molding, and the connected mode of valve body 1 using flange connection or is welded to connect
Structure.
Claims (3)
1. a kind of universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure, including valve body（1）, valve seat（5）, valve element（7）, valve rod,
Seal and installed part, valve element（7）With valve seat（5）Ball face sealing face with mutual cooperation；It is characterized in that valve seat（5）With valve body
（1）Between be provided with radial floating device, the radial floating device is by floating ring（3）And pressing plate（6）Composition, floating ring（3）By pressing
Plate（6）It is fitted in valve body（1）On radial direction step in passage, floating ring（3）Radial direction step in both ends of the surface and the passage of valve body 1 and
Pressing plate（6）Dynamic sealing coordinates between end face, floating ring（3）Periphery and valve body（1）There is flotation chamber between passage inner round wall
（2）, valve seat（5）Both sides end face is arranged on pressing plate（6）End face and floating ring（3）Between the inside step in footpath of endoporus.
2. the universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure according to claim 1, it is characterized in that valve seat（5）It is close
The radial end face and floating ring of sealing surface side（3）There is axial flying height between the inside step in footpath of endoporus（4）, valve seat
（5）Periphery and floating ring（3）Inner hole wall dynamic sealing coordinates.
3. the universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure according to claim 1 or 2, its feature valve element（7）System
There are the upper rotary shaft and Shaft of disjunctor, valve element（7）Valve body is arranged on by upper rotary shaft and Shaft（1）Inner chamber, valve rod
It is connected with each other between lower end periphery and the axis hole of upper rotary shaft using spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210487.6A CN107842628B (en) | 2017-11-28 | 2017-11-28 | Two-way pressure universal automatic compensation valve seat pressure plate type valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210487.6A CN107842628B (en) | 2017-11-28 | 2017-11-28 | Two-way pressure universal automatic compensation valve seat pressure plate type valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107842628A true CN107842628A (en) | 2018-03-27 |
| CN107842628B CN107842628B (en) | 2023-09-01 |
Family
ID=61680493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711210487.6A Active CN107842628B (en) | 2017-11-28 | 2017-11-28 | Two-way pressure universal automatic compensation valve seat pressure plate type valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107842628B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553056A (en) * | 2019-09-30 | 2019-12-10 | 青田超越阀门有限公司 | Spherical bidirectional high-performance rotary valve |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477057A (en) * | 1980-12-12 | 1984-10-16 | Matkemi Ag | Sealing device for valves |
| DE3819301A1 (en) * | 1988-06-03 | 1989-12-07 | Rautenkranz Int Hermann | Ball valve for shutting off pipes, having a floating spherical plug and radially displaceable seat rings |
| WO1997009550A1 (en) * | 1995-09-07 | 1997-03-13 | Naf Ab | Self-adjusting ball valve assembly |
| US5755427A (en) * | 1996-02-23 | 1998-05-26 | Naf Ab | Self adjusting ball valve assembly |
| CN200943717Y (en) * | 2006-05-19 | 2007-09-05 | 铁岭良工阀门有限责任公司 | Floating metal sealed butterfly valve |
| CN201111575Y (en) * | 2007-08-29 | 2008-09-10 | 张启权 | Bidirectional pressure metallic hard sealing butterfly valve |
| JP2011241943A (en) * | 2010-05-20 | 2011-12-01 | Tyco Flow Control Japan Kk | Ball valve |
| CN202561109U (en) * | 2012-05-22 | 2012-11-28 | 永嘉县天天阀门厂 | V-shaped ball valve |
| CN203322300U (en) * | 2013-07-09 | 2013-12-04 | 铁岭特种阀门股份有限公司 | Three-dimensional compensation and two-direction metal sealing butterfly valve |
| CN203463678U (en) * | 2013-08-07 | 2014-03-05 | 中阀科技(长沙)阀门有限公司 | High-temperature high-pressure bidirectional metal hard sealing butterfly valve |
| CN203940028U (en) * | 2014-06-20 | 2014-11-12 | 浙江西铁阀门有限公司 | Bidirectional flow hard sealing ball valve |
| CN205371656U (en) * | 2016-01-18 | 2016-07-06 | 株洲南方阀门股份有限公司 | Bidirectional metal hard seal butterfly valve |
-
2017
- 2017-11-28 CN CN201711210487.6A patent/CN107842628B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4477057A (en) * | 1980-12-12 | 1984-10-16 | Matkemi Ag | Sealing device for valves |
| DE3819301A1 (en) * | 1988-06-03 | 1989-12-07 | Rautenkranz Int Hermann | Ball valve for shutting off pipes, having a floating spherical plug and radially displaceable seat rings |
| WO1997009550A1 (en) * | 1995-09-07 | 1997-03-13 | Naf Ab | Self-adjusting ball valve assembly |
| US5755427A (en) * | 1996-02-23 | 1998-05-26 | Naf Ab | Self adjusting ball valve assembly |
| CN200943717Y (en) * | 2006-05-19 | 2007-09-05 | 铁岭良工阀门有限责任公司 | Floating metal sealed butterfly valve |
| CN201111575Y (en) * | 2007-08-29 | 2008-09-10 | 张启权 | Bidirectional pressure metallic hard sealing butterfly valve |
| JP2011241943A (en) * | 2010-05-20 | 2011-12-01 | Tyco Flow Control Japan Kk | Ball valve |
| CN202561109U (en) * | 2012-05-22 | 2012-11-28 | 永嘉县天天阀门厂 | V-shaped ball valve |
| CN203322300U (en) * | 2013-07-09 | 2013-12-04 | 铁岭特种阀门股份有限公司 | Three-dimensional compensation and two-direction metal sealing butterfly valve |
| CN203463678U (en) * | 2013-08-07 | 2014-03-05 | 中阀科技(长沙)阀门有限公司 | High-temperature high-pressure bidirectional metal hard sealing butterfly valve |
| CN203940028U (en) * | 2014-06-20 | 2014-11-12 | 浙江西铁阀门有限公司 | Bidirectional flow hard sealing ball valve |
| CN205371656U (en) * | 2016-01-18 | 2016-07-06 | 株洲南方阀门股份有限公司 | Bidirectional metal hard seal butterfly valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553056A (en) * | 2019-09-30 | 2019-12-10 | 青田超越阀门有限公司 | Spherical bidirectional high-performance rotary valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107842628B (en) | 2023-09-01 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: No. 1/2, Building 7, Zone 15, Wanyang Zhongchuang City, Bihu Town, Liandu District, Lishui City, Zhejiang Province, 325102 Patentee after: XITIE VALVE TECHNOLOGY CO.,LTD. Guo jiahuodiqu after: Zhong Guo Address before: 325102 East Ou Industrial Zone, Oubei Town, Yongjia County, Wenzhou City, Zhejiang Province Patentee before: XITIE VALVE TECHNOLOGY CO.,LTD. Guo jiahuodiqu before: Zhong Guo |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Bidirectional universal automatic compensation valve seat pressure plate type valve Granted publication date: 20230901 Pledgee: Zhejiang Lishui Liandu Rural Commercial Bank Co.,Ltd. Dazhong Branch Pledgor: XITIE VALVE TECHNOLOGY CO.,LTD. Registration number: Y2024980003517 |