CN207034225U - A kind of cryogenic high pressure pneumatic stopping valve - Google Patents
A kind of cryogenic high pressure pneumatic stopping valve Download PDFInfo
- Publication number
- CN207034225U CN207034225U CN201720939811.7U CN201720939811U CN207034225U CN 207034225 U CN207034225 U CN 207034225U CN 201720939811 U CN201720939811 U CN 201720939811U CN 207034225 U CN207034225 U CN 207034225U
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- Prior art keywords
- flange
- seal body
- bushing
- cone seal
- sealing surface
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Abstract
The utility model discloses a kind of cryogenic high pressure pneumatic stopping valve, including valve seat, bonnet, actuator and flap, the valve clack sealing surface is tapered, forms cone seal body, hard seal is provided with the cone seal body, bushing is provided with the valve seat flowing hole, the bushing lower end is disposed an outwardly facing the flange that is integrally formed of cone seal body, the outside wall parallel of the inwall of the flange and the cone seal body, and the flange inner wall sets spiral stream guidance groove.The utility model is additionally arranged bushing in valve seat flowing hole, the lower end of bushing is provided with integrally formed flange, flange inner wall is provided with spiral stream guidance groove with cone seal body outside wall parallel and flange inner wall, so, fluid media (medium) will spirally pass through flowing hole in the presence of spiral stream guidance groove along flange inner wall, and now, fluid is not directly to meet to sealing surface, but flowed along sealing surface parallel direction, effectively increase the abrasion resistance of sealing surface.
Description
Technical field
It the utility model is related to a kind of stop valve.
Background technology
In the prior art, the structure of stop valve seal pair is two kinds of structure types of flat seal and conical surface seal.Both
The stop valve of structure when medium passes through valve seat orifice, to sealing surface wash away and serious corrosion, especially when medium is low temperature
During high pressure gas, medium flows washing away and corrode even more serious to it along sealing surface so that the sealing effectiveness of stop valve becomes
Difference, service life shorten.
Utility model content
In order to overcome the drawbacks described above of prior art, the utility model provides a kind of novel cutoff valve, this stop valve
Sealing pair can significantly improve protection against erosion, corrosion resistant performance on the basis of traditional stop valve seal pair sealing effectiveness is kept.
The utility model is realized by the following technical solutions：
A kind of cryogenic high pressure pneumatic stopping valve, including valve seat, bonnet, actuator and flap, the valve clack sealing surface is in cone
Shape, cone seal body is formed, is provided with hard seal on the cone seal body, it is characterised in that in the valve seat flowing hole
Bushing is provided with, the bushing lower end is disposed an outwardly facing the flange that is integrally formed of cone seal body, the inwall of the flange and institute
The outside wall parallel of cone seal body is stated, the flange inner wall sets spiral stream guidance groove.
Further, the hard seal soldering is on the flap.
Further, the bushing is interference fitted in the flowing hole.
The beneficial effects of the utility model are：
The utility model is additionally arranged bushing in valve seat flowing hole, and the lower end of bushing is provided with integrally formed flange, convex
Edge inwall is provided with spiral stream guidance groove with cone seal body outside wall parallel and flange inner wall, and so, fluid media (medium) is in spiral stream guidance
It will spirally pass through flowing hole along flange inner wall in the presence of groove, now, fluid is not directly to meet to sealing surface, and
It is to be flowed along sealing surface parallel direction, effectively increases the abrasion resistance of sealing surface.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is sealing surface structure detailed schematic in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
As shown in figure 1, present embodiment discloses a kind of cryogenic high pressure pneumatic stopping valve, including valve seat 1, bonnet 2, actuator
3 and flap 4, the sealing surface of flap 4 is tapered, forms cone seal body 40, is provided with the cone seal body 40 hard close
Body 40a is sealed, bushing 5 is provided with the flowing hole of valve seat 1, the cone seal body 40 forms sealing structure with bushing 5, described
What the lower end of bushing 5 was disposed an outwardly facing cone seal body 40 is integrally formed flange 50, and the inwall of the flange 50 and the taper are close
The outside wall parallel of body 40 is sealed, the inwall of flange 50 sets spiral stream guidance groove 50a.
The present embodiment is total, and the hard seal 40a solderings are on the flap 4；The bushing 5 is interference fitted in the mistake
In discharge orifice.
The utility model is provided with integrally formed flange 50, flange 50 in the lower end of bushing 5 by setting up bushing 5
Inwall is provided with spiral stream guidance groove 50a with the outside wall parallel of cone seal body 40 and the inwall of flange 50, and so, fluid media (medium) is in spiral
Will spirally pass through flowing hole along the inwall of flange 50 in the presence of guiding gutter 50a, now, fluid be not directly meet to
Sealing surface, but flowed along sealing surface parallel direction, it follows that the structure effectively increases the abrasion resistance of sealing surface.
Above-described embodiment is preferred embodiment of the present utility model, is not the limit to technical solutions of the utility model
System, as long as the technical scheme that can be realized without creative work on the basis of above-described embodiment, is regarded as falling into
In the rights protection scope of the utility model patent.
Claims (3)
1. a kind of cryogenic high pressure pneumatic stopping valve, including valve seat（1）, bonnet（2）, actuator（3）And flap（4）, the flap
（4）Sealing surface is tapered, forms cone seal body（40）, the cone seal body（40）On be provided with hard seal（40a）, its
It is characterised by, the valve seat（1）Bushing is provided with flowing hole（5）, the bushing（5）Lower end is disposed an outwardly facing cone seal body
（40）Be integrally formed flange（50）, the flange（50）Inwall and the cone seal body（40）Outside wall parallel, it is described
Flange（50）Inwall sets spiral stream guidance groove（50a）.
A kind of 2. cryogenic high pressure pneumatic stopping valve according to claim 1, it is characterised in that the hard seal（40a）
Soldering is in the flap（4）On.
A kind of 3. cryogenic high pressure pneumatic stopping valve according to claim 1, it is characterised in that the bushing（5）Interference is matched somebody with somebody
Close in the flowing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720939811.7U CN207034225U (en) | 2017-07-31 | 2017-07-31 | A kind of cryogenic high pressure pneumatic stopping valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720939811.7U CN207034225U (en) | 2017-07-31 | 2017-07-31 | A kind of cryogenic high pressure pneumatic stopping valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034225U true CN207034225U (en) | 2018-02-23 |
Family
ID=61463373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720939811.7U Active CN207034225U (en) | 2017-07-31 | 2017-07-31 | A kind of cryogenic high pressure pneumatic stopping valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116255483A (en) * | 2023-05-09 | 2023-06-13 | 德州联合石油科技股份有限公司 | Valve seat and check valve |
-
2017
- 2017-07-31 CN CN201720939811.7U patent/CN207034225U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116255483A (en) * | 2023-05-09 | 2023-06-13 | 德州联合石油科技股份有限公司 | Valve seat and check valve |
| CN116255483B (en) * | 2023-05-09 | 2023-08-04 | 德州联合石油科技股份有限公司 | Valve seat and check valve |
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