CN205908765U - Elasticity two way seal triple offset butterfly valve - Google Patents
Elasticity two way seal triple offset butterfly valve Download PDFInfo
- Publication number
- CN205908765U CN205908765U CN201620632871.XU CN201620632871U CN205908765U CN 205908765 U CN205908765 U CN 205908765U CN 201620632871 U CN201620632871 U CN 201620632871U CN 205908765 U CN205908765 U CN 205908765U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- valve body
- disk 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.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 14
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses an elasticity two way seal triple offset butterfly valve, including valve rod, valve plate and valve body, the valve rod supports on the valve body through the upper bearing that sets up from top to bottom, lower bearing, be equipped with the disk seat in the valve body, be equipped with the valve plate with disk seat matched with on the valve rod, be equipped with valve plate conical sealing surface on the valve plate, be equipped with on the disk seat with valve plate conical sealing surface matched with disk seat conical sealing surface, disk seat outside flange passes through screw fixed connection on valve body hole terminal surface, valve plate conical sealing surface follows valve plate the central axis direction interval and is equipped with a plurality of annulars, the further improvement lies in: be equipped with adjusting shim on disk seat outside flange and the valve body hole terminal surface, disk seat conical sealing surface surface is equipped with wear -resisting metal coating, upper bearing, lower bearing are composite sliding bearing. The utility model discloses reliably sealed, withstand voltage, high temperature resistance can be good.
Description
Technical field
This utility model is related to a kind of valve, particularly a kind of three-eccentric-butterfly-valve.
Background technology
Three-eccentric-butterfly-valve deviates flap center and valve body center for valve rod axle center simultaneously, and sealing pair is the butterfly valve of oblique cone.
Existing three-eccentric-butterfly-valve includes valve rod, valve plate and valve body, and valve rod is bearing in valve body by upper bearing (metal) setting up and down, lower bearing
On, it is provided with valve seat in valve body, valve rod is provided with the valve plate matching with valve seat, valve plate is provided with valve plate conical seal (contact) face, valve seat
It is provided with the valve seat conical seal (contact) face matching with valve plate conical seal (contact) face.By valve plate conical seal (contact) face and valve seat cone seal
The sealing of butterfly valve is realized in the tight fit in face.The defect of this three-eccentric-butterfly-valve is that valve plate conical seal (contact) face is close with valve seat taper
Front cover contact area is big, and sealing reliability is poor.
Content of the invention
This utility model is directed to the deficiencies in the prior art, proposes a kind of elasticity that can significantly improve sealing reliability two-way close
Inside back cover eccentric-butterfly-valve.
This utility model is achieved through the following technical solutions technical goal.
Elastic two way seal three-eccentric-butterfly-valve, including valve rod, valve plate and valve body；Described valve rod is by upper shaft setting up and down
Hold, lower bearing is bearing on valve body；It is provided with valve seat, valve rod is provided with the valve plate matching with valve seat in described valve body；Described valve
Plate is provided with valve plate conical seal (contact) face, and valve seat is provided with the valve seat conical seal (contact) face matching with valve plate conical seal (contact) face；Described
Valve seat outer flange side is fixedly connected on valve body inner bore end face by screw；It thes improvement is that: described valve plate taper is close
Front cover is interval with some annular grooves along valve plate central axial direction.
In said structure, described valve seat outer flange side and valve body inner bore end face are provided with adjust pad.
In said structure, described valve seat conical seal (contact) face surface is provided with antifriction metal (AFM) coating.
In said structure, described upper bearing (metal), lower bearing are composite sliding bearing, are formed by external bushing, neck bush fit,
External bushing is made up of carbon steel, steel alloy or cast iron, and neck bush is by rub resistance, high temperature resistant, low-friction coefficient alloy material system
Become, neck bush outer wall is provided with annular protrusion and embeds tight fit in external bushing internal circular-grooves.
This utility model compared with prior art, has the positive effect that:
1st, valve plate conical seal (contact) face is interval with some annular grooves along valve plate central axial direction, is substantially reduced valve plate and valve seat
Sealing contact surface, forms multi-sealed, significantly improves sealing reliability.
2nd, valve seat outer flange side and valve body inner bore end face are provided with adjust pad, adjust pad can be needed thick according to sealing
Degree, improves sealing reliability further.
3rd, valve seat conical seal (contact) face surface is provided with antifriction metal (AFM) coating, significantly improves wear-resisting, the resistance to elevated temperatures of sealing surface,
Extend this utility model service life.
4th, upper bearing (metal), lower bearing are composite sliding bearing, and neck bush is by rub resistance, high temperature resistant, low-friction coefficient conjunction
Golden material is made, and the bearing of this structure is wear-resisting, and resistance to elevated temperatures is good, can reduce the clamping stagnation at bearing, and during work, this practicality is new
Type open and close torque is less.
Brief description
Fig. 1 is this utility model structural representation.
Fig. 2 is enlarged schematic partial view in Fig. 1.
Specific embodiment
Below according to accompanying drawing and in conjunction with the embodiments the utility model is described in further detail.
Elasticity two way seal three-eccentric-butterfly-valve shown in the drawings, including valve rod 1, valve plate 2 and valve body 3；Valve rod 1 passes through up and down
The upper bearing (metal) 4 of setting, lower bearing 5 are bearing on valve body 3；It is provided with valve seat 7, valve rod 1 is provided with and is matched with valve seat 7 in valve body 3
Valve plate 2；Valve plate 2 is provided with valve plate conical seal (contact) face, in the present embodiment, on hole end surface in valve seat 7 outer flange side and valve body 3
It is provided with adjust pad 9, valve seat 7 is provided with the valve seat conical seal (contact) face matching with valve plate conical seal (contact) face, in the present embodiment, valve
Seat conical seal (contact) face surface is provided with antifriction metal (AFM) coating；Valve seat 7 outer flange side is fixedly connected on valve body 3 endoporus by screw 8
On end face；Valve plate conical seal (contact) face is interval with 4 annular grooves along valve plate 2 central axial direction and (in other embodiment, also can be more than
Or less than 4 annular grooves).
Upper bearing (metal) 4, lower bearing 5 are composite sliding bearing, are formed by external bushing, neck bush fit, external bushing is by carbon
Steel, steel alloy or cast iron are made, and neck bush is made up of rub resistance, high temperature resistant, low-friction coefficient alloy material, neck bush outer wall
It is provided with annular protrusion and embed tight fit in external bushing internal circular-grooves.
Claims (4)
1. a kind of elasticity two way seal three-eccentric-butterfly-valve, including valve rod (1), valve plate (2) and valve body (3)；Described valve rod (1) is passed through
Upper bearing (metal) (4) setting up and down, lower bearing (5) are bearing on valve body (3)；It is provided with valve seat (7), valve rod (1) in described valve body (3)
It is provided with the valve plate (2) matching with valve seat (7)；Described valve plate (2) is provided with valve plate conical seal (contact) face, and valve seat (7) is provided with
The valve seat conical seal (contact) face matching with valve plate conical seal (contact) face；It is fixing even that screw (8) is passed through on described valve seat (7) outer flange side
It is connected on the interior hole end surface of valve body (3)；It is characterized in that: described valve plate conical seal (contact) face is spaced along valve plate (2) central axial direction
It is provided with some annular grooves.
2. according to claim 1 elasticity two way seal three-eccentric-butterfly-valve it is characterised in that: method outside described valve seat (7)
Blue side and the interior hole end surface of valve body (3) are provided with adjust pad (9).
3. according to claim 2 elasticity two way seal three-eccentric-butterfly-valve it is characterised in that: described valve seat conical seal (contact) face
Surface is provided with antifriction metal (AFM) coating.
4. according to claim 3 elasticity two way seal three-eccentric-butterfly-valve it is characterised in that: described upper bearing (metal) (4), lower axle
Hold (5) and be composite sliding bearing, formed by external bushing, neck bush fit, external bushing is by carbon steel, steel alloy or cast iron system
Become, neck bush is made up of rub resistance, high temperature resistant, low-friction coefficient alloy material, neck bush outer wall is provided with annular protrusion and embeds
It is fitted close in external bushing internal circular-grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632871.XU CN205908765U (en) | 2016-06-24 | 2016-06-24 | Elasticity two way seal triple offset butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620632871.XU CN205908765U (en) | 2016-06-24 | 2016-06-24 | Elasticity two way seal triple offset butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205908765U true CN205908765U (en) | 2017-01-25 |
Family
ID=57812238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620632871.XU Expired - Fee Related CN205908765U (en) | 2016-06-24 | 2016-06-24 | Elasticity two way seal triple offset butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205908765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987184A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Elastic two-way sealing three-eccentric-center butterfly valve |
-
2016
- 2016-06-24 CN CN201620632871.XU patent/CN205908765U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987184A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Elastic two-way sealing three-eccentric-center butterfly valve |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20210624 |