CN205908766U - Non -maintaining high pressure resistant triple offset butterfly valve - Google Patents
Non -maintaining high pressure resistant triple offset butterfly valve Download PDFInfo
- Publication number
- CN205908766U CN205908766U CN201620633023.0U CN201620633023U CN205908766U CN 205908766 U CN205908766 U CN 205908766U CN 201620633023 U CN201620633023 U CN 201620633023U CN 205908766 U CN205908766 U CN 205908766U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- seal receptacle
- plate
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 5
- 210000004907 gland Anatomy 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a non -maintaining high pressure resistant triple offset butterfly valve, including valve rod, valve plate and valve body, be equipped with the seal receptacle on the valve plate, the valve pocket inner wall of valve body is equipped with valve body conical sealing surface, be equipped with the shaft shoulder in the position that is close to the valve rod on the valve plate outer wall relative with valve body conical sealing surface, valve plate right -hand member face fixed connection clamp plate is on the valve plate of seal receptacle suit between the valve plate shaft shoulder, clamp plate, the seal receptacle can be at the valve plate shaft shoulder, plate shaft to the removal, be equipped with a plurality of blind holes on the shaft shoulder terminal surface relative with the seal receptacle, be equipped with compression spring in the blind hole, compression spring pushes the seal receptacle to clamp plate, constitutes elasticity self -sealing structure, the further improvement lies in: the sealed face of seal receptacle is followed valve plate the central axis direction interval and is equipped with a plurality of annulars, the seal receptacle adopts high elasticity nickel base alloys material, shaft seal structure is adjustable shaft seal structure. The utility model discloses remain valve body conical sealing surface throughout and be in the state of closely cooperating with the sealed face of seal receptacle, it is non -maintaining, high pressure resistant.
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, is widely used in the industry pipe such as metallurgy, electric power, petrochemical industry and plumbing and urban construction
On road, make adjustments flow and block fluid use.Existing three-eccentric-butterfly-valve includes valve rod, valve plate and valve body；Valve plate is provided with close
Envelope seat；The valve pocket inwall of valve body is provided with valve body conical seal (contact) face, when butterfly valve cuts out, seal receptacle sealing surface and valve body cone seal
Face fits tightly；It is provided with the shaft shoulder, valve plate right-hand member in the position near valve rod on the valve plate outer wall relative with valve body conical seal (contact) face
Face is fixedly connected pressing plate, and sealed socket sleeve is contained on the valve plate between the valve plate shaft shoulder, pressing plate (8).The defect of this three-eccentric-butterfly-valve
It is: valve body conical seal (contact) face cannot be adjusted with the cooperation of seal receptacle sealing surface, after a period of time, valve body taper
Sealing surface and the cooperation of seal receptacle sealing surface are loose, or even produce during gap it is impossible to be eliminated by adjustment, and butterfly valve service life is short.
Content of the invention
This utility model is directed to the deficiencies in the prior art, proposes one kind and can remain valve body conical seal (contact) face and seal receptacle
Sealing surface is in tight engagement, the non-maintaining high pressure resistant three-eccentric-butterfly-valve significantly increasing the service life.
This utility model is achieved through the following technical solutions technical goal.
Non-maintaining high pressure resistant three-eccentric-butterfly-valve, including valve rod, valve plate and valve body；Valve rod passes through valve body, by setting up and down
Upper bearing (metal), lower bearing is supported on valve body；Described valve body top and valve rod junction are provided with shaft seal structure；Set on described valve plate
There is seal receptacle；The valve pocket inwall of described valve body is provided with valve body conical seal (contact) face, when butterfly valve cuts out, seal receptacle sealing surface and valve body
Conical seal (contact) face fits tightly；It is provided with axle in the position near valve rod on the described valve plate outer wall relative with valve body conical seal (contact) face
Shoulder, valve plate right side is fixedly connected pressing plate, and sealed socket sleeve is contained on the valve plate between the valve plate shaft shoulder, pressing plate；Its improvements exists
In: described seal receptacle can move axially in the valve plate shaft shoulder, pressing plate；The described shaft shoulder end face relative with seal receptacle is provided with some blind
Hole, is provided with compression spring in blind hole；Described compression spring pushes seal receptacle to pressing plate, constitutes elastic self sealing structure.
In said structure, described seal receptacle sealing surface is interval with some annular grooves along valve plate central axial direction.
In said structure, described seal receptacle adopts high resiliency nickel-bass alloy material.
In said structure, described shaft seal structure includes gland, sealing ring, screw；Described gland is sleeved on valve rod, gland
Bottom is stretched in the valve body top on upper bearing (metal) top and the annular groove of valve rod junction, is slidably matched with annular groove, sealing ring is closed
In annular groove；Described screw runs through the hole on gland top, is connected with valve body top, scalable gland, the relative position of valve body.
In said structure, described sealing ring is the v shape sealing ring of more than 2 closed assemblies.
This utility model compared with prior art, has the positive effect that:
1st, the shaft shoulder end face relative with seal receptacle is provided with compression spring, and compression spring pushes seal receptacle to pressing plate, constitutes
Elastic self sealing structure, so, can remain that valve body conical seal (contact) face and seal receptacle sealing surface are in tight engagement, show
Write and improve sealing property, sealing reliability, pressure performance, significantly increase the service life.
2nd, seal receptacle sealing surface is interval with some annular grooves along valve plate central axial direction, is substantially reduced valve body and seal receptacle
Sealing contact surface, forms multi-sealed, improves sealing property, sealing reliability, pressure performance further.
3rd, seal receptacle adopts high resiliency nickel-bass alloy material, and elasticity is good, and anti-wear performance is good, significantly improves sealing reliability.
4th, shaft seal structure is adjustable shaft seal structure, shaft seal structure can be made to be in positive sealing state by adjustment, significantly
Reduce leakage, improve sealing property, sealing reliability, pressure performance further.
5th, sealing ring is the v shape sealing ring of more than 2 closed assemblies, when sealing ring is compressed axially, can produce radial force, make
Sealing ring is combined even closer, raising shaft seal structure sealing reliability further with ring groove side wall, valve rod outer wall.
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.
Non-maintaining high pressure resistant three-eccentric-butterfly-valve shown in the drawings, including valve rod 1, valve plate 2 and valve body 3；Valve rod 1 passes through valve body
3, it is supported on valve body 3 by upper bearing (metal) 4 setting up and down, lower bearing 5；Valve body 3 top and valve rod 1 junction are provided with axle envelope knot
Structure 6；Valve plate 2 is provided with seal receptacle 7, and in the present embodiment, seal receptacle 7 adopts high resiliency nickel-bass alloy material, seal receptacle 7 sealing surface
It is interval with some annular grooves along valve plate 2 central axial direction；The valve pocket inwall of valve body 3 is provided with valve body conical seal (contact) face, works as butterfly valve
During closing, seal receptacle 7 sealing surface and valve body conical seal (contact) face fit tightly；Valve plate 2 outer wall relative with valve body 3 conical seal (contact) face
On be provided with the shaft shoulder 2.1 near the position of valve rod 1, valve plate 2 right side is fixedly connected pressing plate 8, and seal receptacle 7 is sleeved on valve plate 2 axle
On valve plate 2 between shoulder 2.1, pressing plate 8；Seal receptacle 7 can move axially in valve plate 2 shaft shoulder 2.1, pressing plate 8；The shaft shoulder 2.1 and sealing
Seat 7 relative end faces are provided with some blind holes, are provided with compression spring 9 in blind hole；Compression spring 9 pushes seal receptacle 7 to pressing plate 8,
Constitute elastic self sealing structure.
Shaft seal structure 6 includes gland 6.1, sealing ring 6.2, screw 6.3；Gland 6.1 is sleeved on valve rod 1, under gland 6.1
Portion stretches in valve body 3 top on upper bearing (metal) 4 top and the annular groove of valve rod 1 junction, is slidably matched with annular groove, by sealing ring 6.2
Be enclosed in annular groove, in the present embodiment, sealing ring 6.2 be 2 closed assemblies v shape sealing ring (in other embodiment, sealing ring 6.2
Using more than two v shape sealing ring closed assembly)；Screw 6.3 runs through the hole on gland 6.1 top, is connected with valve body 3 top, scalable pressure
Set 6.1, the relative position of valve body 3.
Claims (5)
1. a kind of non-maintaining high pressure resistant three-eccentric-butterfly-valve, including valve rod (1), valve plate (2) and valve body (3)；Valve rod (1) passes through valve body
(3), it is supported on valve body (3) by upper bearing (metal) (4) setting up and down, lower bearing (5)；Described valve body (3) top and valve rod (1)
Junction is provided with shaft seal structure (6)；Described valve plate (2) is provided with seal receptacle (7)；The valve pocket inwall of described valve body (3) is provided with valve
Body conical seal (contact) face, when butterfly valve cuts out, seal receptacle (7) sealing surface and valve body conical seal (contact) face fit tightly；Described valve plate (2)
It is provided with the shaft shoulder (2.1), valve plate (2) right side in the position near valve rod (1) on the outer wall relative with valve body (3) conical seal (contact) face
It is fixedly connected pressing plate (8), seal receptacle (7) is sleeved on the valve plate (2) between valve plate (2) shaft shoulder (2.1), pressing plate (8)；Its feature
It is: described seal receptacle (7) can move axially in valve plate (2) shaft shoulder (2.1), pressing plate (8)；The described shaft shoulder (2.1) and seal receptacle
(7) relative end face is provided with some blind holes, is provided with compression spring (9) in blind hole；Described compression spring (9) is by seal receptacle (7)
Push pressing plate (8) to, constitute elastic self sealing structure.
2. non-maintaining high pressure resistant three-eccentric-butterfly-valve according to claim 1 it is characterised in that: the sealing of described seal receptacle (7)
Face is interval with some annular grooves along valve plate (2) central axial direction.
3. non-maintaining high pressure resistant three-eccentric-butterfly-valve according to claim 1 and 2 it is characterised in that: described seal receptacle (7) is adopted
Use high resiliency nickel-bass alloy material.
4. non-maintaining high pressure resistant three-eccentric-butterfly-valve according to claim 3 it is characterised in that: described shaft seal structure (6) bag
Include gland (6.1), sealing ring (6.2), screw (6.3)；Described gland (6.1) is sleeved on valve rod (1), gland (6.1) bottom
Stretch in valve body (3) top on upper bearing (metal) (4) top and the annular groove of valve rod (1) junction, be slidably matched with annular groove, by sealing ring
(6.2) it is enclosed in annular groove；Described screw (6.3) runs through the hole on gland (6.1) top, is connected with valve body (3) top, scalable
Gland (6.1), the relative position of valve body (3).
5. non-maintaining high pressure resistant three-eccentric-butterfly-valve according to claim 4 it is characterised in that: described sealing ring (6.2) be 2
The v shape sealing ring of individual above closed assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633023.0U CN205908766U (en) | 2016-06-24 | 2016-06-24 | Non -maintaining high pressure resistant triple offset butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620633023.0U CN205908766U (en) | 2016-06-24 | 2016-06-24 | Non -maintaining high pressure resistant triple offset butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205908766U true CN205908766U (en) | 2017-01-25 |
Family
ID=57812370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620633023.0U Expired - Fee Related CN205908766U (en) | 2016-06-24 | 2016-06-24 | Non -maintaining high pressure resistant triple offset butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205908766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987183A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Maintenance-free high-pressure-resistant three-eccentric-center butterfly valve |
-
2016
- 2016-06-24 CN CN201620633023.0U patent/CN205908766U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987183A (en) * | 2016-06-24 | 2016-10-05 | 江苏中昊船用阀门制造有限公司 | Maintenance-free high-pressure-resistant 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 |