CN108050262A - A kind of universal floating valve seat butterfly ball face sealing valve - Google Patents
A kind of universal floating valve seat butterfly ball face sealing valve Download PDFInfo
- Publication number
- CN108050262A CN108050262A CN201711210557.8A CN201711210557A CN108050262A CN 108050262 A CN108050262 A CN 108050262A CN 201711210557 A CN201711210557 A CN 201711210557A CN 108050262 A CN108050262 A CN 108050262A
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- floating
- valve seat
- face
- 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.)
- Withdrawn
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/228—Movable sealing bodies
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The present invention relates to a kind of universal floating valve seat butterfly ball face sealing face valves, and including valve body, valve seat, butterfly plate, valve rod, sealing element and installed part, butterfly plate has the ball face sealing face to cooperate with valve seat, and butterfly plate is mounted on body cavity by valve rod；Mainly valve seat uses universal floating combined valve seat, the universal floating combined valve seat is by sealing ring, floating ring, snap ring and pressing plate composition, snap ring is inlaid in the annular groove of valve channel inner wall, the axial width of annular groove is more than the axial width of snap ring, floating ring and pressing plate are fixedly mounted on snap ring both sides by screw, floating ring periphery coordinates with valve channel inner hole wall dynamic sealing, the both sides of the face dynamic sealing of sealing ring is mounted between pressing plate and the interior step of floating ring, sealing ring outside diameter is less than floating ring diameter of bore, the left inside side of sealing ring has the ball face sealing face to cooperate with butterfly plate sealing surface.In butterfly plate closing process, the concentricity in adjust automatically butterfly plate ball face sealing face and sealing ring ball face sealing face has the characteristics that good seal performance, long product lifecycle.
Description
Technical field
The invention belongs to valve field more particularly to a kind of butterfly ball valves.
Background technology
Butterfly ball valve has many advantages, such as simple in structure, conveniently opening and closing, and the medium for being widely used in all fields of national economy is defeated
Pipeline is sent, structure mainly includes valve body, valve seat, butterfly plate, valve rod, and butterfly plate is installed by valve rod and body cavity, butterfly plate sealing surface
The ball face sealing pair to cooperate with valve seat composition, seals cooperation between valve seat periphery and valve channel endoporus, filled by transmission
It puts and 90 ° of rotations of butterfly plate is driven by valve rod, realize the keying operation of valve.Its major defect is：Valve seat is radially fixed to be mounted on
Valve channel inner wall, valve seat center line are theoretically fixed on valve channel center line, and still, butterfly plate is mounted on body cavity
Afterwards, more or less there is deviation between sealing surface sphere center position and valve seat center line, and butterfly plate ball face sealing face and valve
Seat ball face sealing face all there are mismachining tolerance, causes the concentricity in butterfly plate ball face sealing face and valve seat ball face sealing face to exist inclined
Difference, the seal pressure of sealing pair circumferencial direction is inconsistent when so that the butterfly plate is coordinated with valve seat, and the sealing performance for constraining valve carries
Height leaks when error is larger.And increase the abrasion of butterfly plate sealing surface and sealing surface of seat in use, reduce production
Product service life.
The content of the invention
The purpose of the present invention is being directed to shortcoming existing in the prior art, providing one kind being capable of adjust automatically butterfly plate ball face sealing
Face coordinates concentricity with valve seat ball face sealing face, and sealing pair circumferential sealing is better than pressure uniformity, and good seal performance, product uses the longevity
Order long universal floating valve seat butterfly ball face sealing face valve.
Technical scheme includes valve body, valve seat, butterfly plate, valve rod, sealing element and installed part, and butterfly plate has with valve seat
The ball face sealing face of mutual cooperation, butterfly plate are mounted on body cavity by valve rod；Mainly valve seat uses universal floating combined type
Valve seat, the universal floating combined valve seat are made of sealing ring, floating ring, snap ring and pressing plate, and snap ring is inlaid in valve channel
In the annular groove of inner wall, the axial width of annular groove is more than the axial width of snap ring, and floating ring and pressing plate are fixedly mounted by screw
In snap ring both sides, floating ring periphery coordinates with valve channel inner hole wall dynamic sealing, the both sides of the face dynamic sealing installation of sealing ring
Between pressing plate and the interior step of floating ring, sealing ring outside diameter is less than floating ring diameter of bore, and the left inside side of sealing ring has
The ball face sealing face to cooperate with butterfly plate sealing surface.
It is an advantage of the invention that in valve seat using universal floating combined valve seat, in butterfly plate closing process, adjust automatically
The concentricity in butterfly plate ball face sealing face and sealing ring ball face sealing face makes the two ball face sealing face seal cooperation with one heart, reaches close
The secondary circumferential sealing of envelope has the characteristics that good seal performance, long product lifecycle than pressure uniformity.
Description of the drawings
Fig. 1 is the structure diagram of the present invention.
Specific embodiment
Universal floating valve seat butterfly ball face sealing valve as shown in Figure 1, including valve body 1, valve seat, butterfly plate 9, valve rod, close
Sealing and installed part；Valve seat uses universal floating combined valve seat, and the universal floating combined valve seat is by sealing ring 8, floating
Ring 3, snap ring 5 and pressing plate 6 form, and snap ring 5 is inlaid in the annular groove of 1 vias inner walls of valve body, and the axial width of annular groove is more than
The axial width of snap ring 5 makes to form axial floating chamber 4 between the sagittal plane of snap ring 5 and annular groove, and snap ring 5 can be in annular
Axial movement, floating ring 3 and pressing plate 6 are fixedly mounted on 5 both sides of snap ring by screw 11 in slot, and 3 periphery of floating ring is logical with valve body 1
Road inner hole wall dynamic sealing cooperation, makes floating ring 3, pressing plate 6 and snap ring 5 be integrally formed and be moved axially in annular groove, outside floating ring 3
It is sealed between 1 vias inner walls of disc and valve body using ring type seal 12, the both sides of the face dynamic sealing of sealing ring 8 is mounted on pressing plate
Between 6 and the interior step of floating ring 3,8 outside diameter of sealing ring is less than 3 diameter of bore of floating ring, is formed between the two radially floating
Dynamic chamber 7, makes sealing ring 8 that can be moved radially with Relative Floating ring 3, and 8 left inside side of sealing ring has the spherical surface to cooperate with butterfly plate 9
Sealing surface.Sealing ring 10 between sealing ring 8 and the interior step of floating ring 3 is installed, realizes sealing between the two, sealing ring 8 with
It can also firmly be sealed using minute surface between the interior step of floating ring 3 and between sealing ring 8 and pressing plate 6, improve high temperature resistance.
There is the axis equal with the axial width of axial floating chamber 4 between 3 left end face of floating ring and the radial direction step in 1 passage of valve body
To gap 2.
Claims (1)
1. a kind of universal floating valve seat butterfly ball face sealing valve, including valve body（1）, valve seat, butterfly plate（9）, valve rod, sealing element and
Installed part；It is characterized in that valve seat uses universal floating combined valve seat, the universal floating combined valve seat is by sealing ring（8）、
Floating ring（3）, snap ring（5）And pressing plate（6）Composition, snap ring（5）It is inlaid in valve body（1）In the annular groove of vias inner walls, annular groove
Axial width be more than snap ring（5）Axial width, snap ring（5）Sagittal plane and annular groove between formed axial floating chamber
（4）, floating ring（3）And pressing plate（6）By screw（11）It is fixedly mounted on snap ring（5）Both sides, floating ring（3）Periphery and valve body
（1）Access bore wall dynamic sealing coordinates, sealing ring（8）Both sides of the face dynamic sealing be mounted on pressing plate（6）With floating ring（3）It is interior
Between step, sealing ring（8）Outside diameter is less than floating ring（3）Diameter of bore forms radial floating chamber between the two（7）, it is close
Seal ring（8）Left inside side has and butterfly plate（9）The ball face sealing face of mutual cooperation, sealing ring（8）With floating ring（3）Interior step it
Between and sealing ring（8）With pressing plate（6）Between sealed firmly using minute surface, floating ring（3）Left end face and valve body（1）In passage
Have and axial floating chamber between radial direction step（4）The equal axial gap of axial width（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210557.8A CN108050262A (en) | 2017-11-28 | 2017-11-28 | A kind of universal floating valve seat butterfly ball face sealing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711210557.8A CN108050262A (en) | 2017-11-28 | 2017-11-28 | A kind of universal floating valve seat butterfly ball face sealing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108050262A true CN108050262A (en) | 2018-05-18 |
Family
ID=62120668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711210557.8A Withdrawn CN108050262A (en) | 2017-11-28 | 2017-11-28 | A kind of universal floating valve seat butterfly ball face sealing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108050262A (en) |
-
2017
- 2017-11-28 CN CN201711210557.8A patent/CN108050262A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106015585A (en) | Floating ring-magnetofluid sealing device | |
| CN204201078U (en) | A kind of y-type seal ring | |
| CN108050262A (en) | A kind of universal floating valve seat butterfly ball face sealing valve | |
| CN108317258A (en) | Butterfly ball face sealing valve | |
| CN107477193B (en) | A kind of spherical valve seat butterfly valve | |
| CN107781446A (en) | The universal automatic compensation valve seat snap ring pressure plate type valve of Bidirectional pressure | |
| CN206513863U (en) | A kind of seating spring chamber dustproof construction | |
| CN201836433U (en) | High temperature ball valve | |
| CN108194653A (en) | A kind of universal floating valve seat high-temperature ball valve | |
| CN108488427A (en) | A kind of single seat bidirectional metal sealing valve seat | |
| CN207514283U (en) | The universal automatic compensation valve seat snap ring pressure plate type valve of Bidirectional pressure | |
| CN210034512U (en) | Novel valve seat of ball valve | |
| CN203940015U (en) | A kind of efficient slipper seal assembly | |
| CN203560493U (en) | High-performance all-welding fixing ball valve | |
| CN107763241B (en) | Bidirectional pressure universal automatic compensation valve seat side valve cover type valve | |
| CN207112012U (en) | A kind of structure based on super-pressure check valve | |
| CN203035986U (en) | Flat-valve seat sealing structure | |
| CN207514281U (en) | The universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure | |
| CN107842628A (en) | The universal automatic compensation valve seat pressure plate type valve of Bidirectional pressure | |
| CN107289153A (en) | A kind of T-shaped tee ball valve of high pressure | |
| CN216895800U (en) | Bidirectional soft sealing butterfly valve | |
| CN205479466U (en) | Unsteady ball valve seating structure | |
| CN108278377A (en) | Formula high-temperature ball valve is filled on the zero leakage long-life | |
| US3265353A (en) | Sealing means for valves | |
| CN205745337U (en) | Full welding Bidirectional pressure hard seal butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180518 |