CN206175758U - High pressure valve flange seal structure - Google Patents
High pressure valve flange seal structure Download PDFInfo
- Publication number
- CN206175758U CN206175758U CN201621157682.8U CN201621157682U CN206175758U CN 206175758 U CN206175758 U CN 206175758U CN 201621157682 U CN201621157682 U CN 201621157682U CN 206175758 U CN206175758 U CN 206175758U
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- China
- Prior art keywords
- valve body
- seal groove
- valve
- high pressure
- pressure valve
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- 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.)
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- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 241001635479 Coris bulbifrons Species 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The utility model discloses a high pressure valve flange seal structure, including valve body, the left side body, spheroid and disk seat supporting, personally experience sth. Part of the body in a left side and valve body complex surface is the platform form, and the inner wall of valve body contacts with the outer wall of left sinistron portion, is equipped with the clearance between the terminal surface of valve body right part and the vertical face of left sinistron portion, be equipped with the locating pin between the left side body and the valve body, the left side body and valve body pass through stud and hexagon nut connects, still include seal groove A, seal groove A is located physically leftly and the vertical face of valve body complex, be equipped with sealed the pad in the seal groove A, the utility model discloses a high pressure valve flange seal structure simple structure, convenient to use, use by the locating pin location between the valve body and the left side body, improved the assembly accuracy, play sealed effect jointly by 1 oval ring and 1 O shape sealing washer between the valve body and the left side body, increased the sealing reliability, reduced the risk that the flange leaked in the valve.
Description
Technical field
This utility model is related to machinery valve technology, more particularly to a kind of high pressure valve flange sealing structure.
Background technology
Flange sealing structure in current high pressure valve, valve body and left body are connected by studs and hex nut,
Flange sealing structure in having 4 road O-ring seals to constitute between valve body and left body, in actual high-voltage operating mode, the O shapes of middle flange are close
Seal deforms in the presence of high pressure and corrosive medium seriously, it is impossible to reach the seal pressure power required for sealing, in valve
Flange is easily leaked.
Utility model content
This utility model aims to provide a kind of high pressure valve flange sealing structure, can solve the problem that flange seal in high-pressure ball valve
Problem, it is to avoid valve flange leak.
To reach above-mentioned purpose, the technical solution adopted in the utility model is as follows：
A kind of high pressure valve flange sealing structure, including the supporting of valve body, Zuo Ti, spheroid and valve seat, the left body and valve body
The surface of cooperation is mesa-shaped, and the wall contacts of the inwall of valve body and left body left part, the end face of valve body right part are perpendicular with left body left part
Gap is provided between facing directly；Alignment pin is provided between the left body and valve body, left body and valve body pass through studs and hexagonal spiral shell
Female connection；Also include that seal groove A, seal groove A are located on the vertical plane that left body and valve body coordinate, in the seal groove A, be provided with close
Packing；Seal groove B is provided with the outer wall that the left body and valve body coordinate, in seal groove B, sealing ring is provided with.
Preferably, the studs at least 4, each studs ring-type are distributed on left body；Hex nut with it is double
Header stud quantity is identical.
Preferably, the sealing gasket is ring metal gasket, and sealing gasket cross sectional shape is oval.
Preferably, the sealing ring is O-ring seal.
Preferably, the gap length is 1mm.
Preferably, the seal groove A is divided into left part seal groove and right part seal groove, left part seal groove and right part seal groove
It is located on valve body and left body respectively.
A kind of high pressure valve flange sealing structure simple structure of the present utility model, it is easy to use；Using valve body and left body
Between by positioning finger setting, improve assembling accuracy；It is common by 1 road oval ring and 1 road O-ring seals between valve body and left body
Seal, increased sealing reliability, reduce the risk of flange leakage in valve.
Description of the drawings
Fig. 1 is this utility model structural representation.
In figure：1- valve bodies, 2- alignment pins, 3- seal groove A, 4- seal groove B, 5- spheroids, the supporting of 6- valve seats, 7- double end spiral shells
Post, 8- hex nuts, the left bodies of 9-.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing, to this reality
It is further elaborated with new.
As shown in figure 1, a kind of high pressure valve flange sealing structure, including valve body 1, left body 9, spheroid 5 and valve seat supporting 6,
The left body 9 and the surface that valve body 1 coordinates are mesa-shaped, the wall contacts of the inwall of valve body 1 and 9 left part of left body, 1 right part of valve body
Gap is provided between the vertical plane of 9 left part of end face and left body；Alignment pin 2, left body 9 and valve are provided between the left body 9 and valve body 1
Body 1 passes through studs 7 and hex nut 8 connects；Also include that seal groove A3, seal groove A3 coordinate positioned at left body 9 and valve body 1
On vertical plane, in the seal groove A3, sealing gasket is provided with；Seal groove B4 is provided with the outer wall that the left body 9 and valve body 1 coordinate, it is close
Sealing ring is provided with sealing groove B4.The studs 7 at least 4, each 7 ring-type of studs are distributed on left body 9；Hexagonal spiral shell
Female 8 is identical with 7 quantity of studs.The sealing gasket is ring metal gasket, and sealing gasket cross sectional shape is oval.It is described
Sealing ring is O-ring seal.The gap length is 1mm.The seal groove A3 is divided into left part seal groove and right part seal groove,
Left part seal groove and right part seal groove are located on valve body 1 and left body 9 respectively.
This utility model improves high pressure valve flange sealing structure, and valve body 1 and left body 9 pass through studs 7 and hexagonal
Nut 8 is connected, and is positioned by alignment pin 2, improve assembling accuracy between valve body 1 and left body 9；Between valve body 1 and left body 9
Sealed by 1 road oval ring and 1 road O-ring seals jointly.And 1mm gaps are left between left body 9 and valve body 1, in double end
Under the pretension effect of stud 7 and hex nut 8, the ratio pressure required for the sealing of oval ring is increased.
By in actual high-voltage operating mode, oval ring and O-ring seals are sealed jointly, the oval ring energy of metal material
Higher pressure is born, did not occur middle flange leakage in actual use.
Certainly, this utility model can also have other various embodiments, spiritual and its essence without departing substantially from this utility model
In the case of, those of ordinary skill in the art can make various corresponding changes and deformation, but these phases according to this utility model
The change and deformation answered should all belong to the scope of the claims appended by this utility model.
Claims (6)
1. the supporting of a kind of high pressure valve flange sealing structure, including valve body, Zuo Ti, spheroid and valve seat, it is characterised in that：The left side
The surface that body and valve body coordinate is mesa-shaped, the wall contacts of the inwall of valve body and left body left part, the end face of valve body right part and left body
Gap is provided between the vertical plane of left part；Alignment pin is provided between the left body and valve body, left body and valve body pass through studs
Connect with hex nut；Also include that seal groove A, seal groove A are located on the vertical plane that left body and valve body coordinate, the seal groove A
Sealing gasket is provided with inside；Seal groove B is provided with the outer wall that the left body and valve body coordinate, in seal groove B, sealing ring is provided with.
2. a kind of high pressure valve flange sealing structure according to claim 1, it is characterised in that：The studs is at least
4, each studs ring-type is distributed on left body；Hex nut is identical with studs quantity.
3. a kind of high pressure valve flange sealing structure according to claim 1, it is characterised in that：The sealing gasket is ring-type
Metallic gasket, sealing gasket cross sectional shape are ellipse.
4. a kind of high pressure valve flange sealing structure according to claim 1, it is characterised in that：The sealing ring is O-shaped
Sealing ring.
5. a kind of high pressure valve flange sealing structure according to claim 1, it is characterised in that：The gap length is
1mm。
6. a kind of high pressure valve flange sealing structure according to claim 1, it is characterised in that：The seal groove A separates
For left part seal groove and right part seal groove, left part seal groove and right part seal groove are located on valve body and left body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621157682.8U CN206175758U (en) | 2016-10-25 | 2016-10-25 | High pressure valve flange seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621157682.8U CN206175758U (en) | 2016-10-25 | 2016-10-25 | High pressure valve flange seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175758U true CN206175758U (en) | 2017-05-17 |
Family
ID=58679426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621157682.8U Active CN206175758U (en) | 2016-10-25 | 2016-10-25 | High pressure valve flange seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175758U (en) |
-
2016
- 2016-10-25 CN CN201621157682.8U patent/CN206175758U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 67, Section 1, Xueshan Avenue, Dayi County, Chengdu City, Sichuan Province, 611330 Patentee after: Chengdu Chenggao Valve Co.,Ltd. Patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd. Address before: 611330 Industrial Avenue, Jinyuan Town, Dayi County, Chengdu City, Sichuan Province Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd. Patentee before: CHENGDU CHENGFENG VALVE Co.,Ltd. |
|
| CP03 | Change of name, title or address |