CN202392197U - High pressure axial-flow type check valve - Google Patents
High pressure axial-flow type check valve Download PDFInfo
- Publication number
- CN202392197U CN202392197U CN2011204565582U CN201120456558U CN202392197U CN 202392197 U CN202392197 U CN 202392197U CN 2011204565582 U CN2011204565582 U CN 2011204565582U CN 201120456558 U CN201120456558 U CN 201120456558U CN 202392197 U CN202392197 U CN 202392197U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- high pressure
- flow type
- type check
- 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 - Lifetime
Links
Images
Landscapes
- Check Valves (AREA)
Abstract
The utility model provides a high pressure axial-flow type check valve, which aims to solve the problems of the tight locking of a valve clack and a sealing surface of a valve body, and the like. The high pressure axial-flow type check valve comprises a valve clack and a valve body, wherein the valve clack is in a disk-shaped structure, and is covered on the sealing surface of the valve body; the contact surface of the valve clack and the sealing surface of the valve body is a plane, and thus the valve clack and the sealing surface of the valve body are in plane sealing; and the contact surface is provided with a sealing ring. According to the high pressure axial-flow type check valve provided by the utility model, the valve clack adopts a plane structure which solves the problem that the valve clack and the sealing surface of the valve body of the conventional axial-flow type and shuttle type check valves are in a tapered structure, and thus the valve clack is easy to lock in the valve body.
Description
Technical field
The utility model relates to the switch valve field, and a kind of high pressure axial flow type check valve is provided.
Technical background
Present CNG and other industry; Need to satisfy high pressure (usually above 32Mpa) operating mode with a kind of axial flow type check valve, and common axial flow, shuttle type check valve, the sealing surface employing tapered configuration of flap and valve body; Under high-pressure situations; Thrust makes flap be clamped on the valve body easily, causes when needing valve open flap can't throw off valve body, causes the flap stuck phenomenon.
The model utility content
The purpose of the utility model is to provide a kind of can solve existing tapering sealing configuration safety check under high-pressure situations, and the high pressure axial flow type check valve of problem such as stuck very easily takes place.
For realizing that above-mentioned purpose the utility model adopts following technological scheme:
A kind of high pressure axial flow type check valve comprises flap, valve body, it is characterized in that: said flap adopts disc-shaped structure, is close to realize on the valve body sealing surface turn-offing, and the surface of contact of flap and fluid input place valve body is the plane, and this surface of contact is provided with seal ring.
Said seal ring is an O type circle.
Said seal ring is arranged on the flap.
The utlity model has following beneficial effect:
Adopt plane sealing structure between the utility model flap and the valve body sealing surface, solved existing axial flow, shuttle type check valve, the sealing surface of flap and valve body adopts tapered configuration, and the stuck problem in valve body of flap very easily takes place.
Description of drawings
Fig. 1 is the design's a sectional view;
Fig. 2 is the conical surface seal figure of common structure;
Fig. 3 is the design's plane sealing figure;
1 is that valve body, 2 is that O type circle, 3 is that flap, 4 is that spring, 5 is that spring seat, 6 is left valve barrel among the figure.
Embodiment
A kind of high pressure axial flow type check valve; Its composition comprises valve body 1, O type circle 2, flap 3, spring 4, spring seat 5, left valve barrel 6; Be provided with O type circle 2 between said left valve barrel 6 and valve body, and be threaded between left valve barrel 6 and the valve body 1, what said left valve barrel 6 was positioned at valve body one end has a spring seat 5; Spring seat 5 flexibly connects with flap 3; And 3 of spring seat 5 and flaps are provided with spring 4, and said valve body 1 flap adopts plane structure and on the sealing surface that is resisted against valve body under the effect of spring 4 elastic force, forms sealing, and 1 of said flap 3 and valve body are provided with O type circle 2.
Medium is from valve body 1 one side inflows, and medium thrust overcomes the elastic force of spring 4, pushes flap 3 open, and medium flows into left valve barrel 6 one sides; When medium during from left valve barrel 6 one side inflows, the elastic force of medium thrust and spring 4 forms makes a concerted effort, and flap 3 tightly is pressed on the valve body 1, and medium can't circulate.Realize the unidirectional conducting function of safety check.
Adopt plane sealing structure between flap 3 and the valve body 1, prevented that flap is stuck in valve body, the phenomenon that can't return takes place.
Claims (3)
1. a high pressure axial flow type check valve comprises flap, valve body, it is characterized in that: said flap adopts disc-shaped structure, is close to realize on the valve body sealing surface turn-offing, and the surface of contact of flap and fluid input place valve body is the plane, and this surface of contact is provided with seal ring.
2. a kind of high pressure axial flow type check valve according to claim 1 is characterized in that: said seal ring is an O type circle.
3. a kind of high pressure axial flow type check valve according to claim 1 and 2, it is characterized in that: said seal ring is arranged on the flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204565582U CN202392197U (en) | 2011-11-17 | 2011-11-17 | High pressure axial-flow type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204565582U CN202392197U (en) | 2011-11-17 | 2011-11-17 | High pressure axial-flow type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392197U true CN202392197U (en) | 2012-08-22 |
Family
ID=46667124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204565582U Expired - Lifetime CN202392197U (en) | 2011-11-17 | 2011-11-17 | High pressure axial-flow type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392197U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352996A (en) * | 2013-08-14 | 2013-10-16 | 上海纳福希阀门有限公司 | Axial-flow type check valve |
| CN107524837A (en) * | 2017-08-23 | 2017-12-29 | 上海伟伦阀门集团江苏有限公司 | Dual-seal axial flow type check valve |
| CN109838592A (en) * | 2019-04-08 | 2019-06-04 | 广州旭特铝业科技有限公司 | A kind of check-valves diaphragm and check-valves |
-
2011
- 2011-11-17 CN CN2011204565582U patent/CN202392197U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352996A (en) * | 2013-08-14 | 2013-10-16 | 上海纳福希阀门有限公司 | Axial-flow type check valve |
| CN107524837A (en) * | 2017-08-23 | 2017-12-29 | 上海伟伦阀门集团江苏有限公司 | Dual-seal axial flow type check valve |
| CN109838592A (en) * | 2019-04-08 | 2019-06-04 | 广州旭特铝业科技有限公司 | A kind of check-valves diaphragm and check-valves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202392197U (en) | High pressure axial-flow type check valve | |
| CN203335872U (en) | Secondary sealing stop valve | |
| CN201627987U (en) | Cutoff one-way valve | |
| CN103711958A (en) | Pressure release valve for water seal unit | |
| CN202756653U (en) | Ultralow temperature jacket type ball valve | |
| CN202674362U (en) | Mass-flow spherical stop valve used under a coal mine | |
| CN204437296U (en) | Embedded forging Y type is without bonnet stop valve | |
| CN203627876U (en) | Forging type high pressure difference noise reduction V-shaped adjusting ball valve | |
| CN202691171U (en) | High pound level forged steel full-open swing check valve | |
| CN204226705U (en) | Valve seat type stopcock | |
| CN203784319U (en) | Self-sealing pressure stop valve | |
| CN204312745U (en) | A kind of gate valve | |
| CN202100774U (en) | Self-closing type non-return valve | |
| CN203272810U (en) | Stop valve | |
| CN203926912U (en) | Non-return overflow combiner valve | |
| CN201723746U (en) | High-temperature and high-pressure stop valve of T-type power station | |
| CN202852056U (en) | All-plastic diaphragm valve | |
| CN202756723U (en) | Valve body capable of preventing valve clack from displacing | |
| CN204942681U (en) | A kind of valve with stiffening rib | |
| CN204664502U (en) | A kind of safety check pre-pressing structure | |
| CN204328006U (en) | A kind of pneumatic flange-type three butterfly valve partially | |
| CN204175985U (en) | Be provided with the butterfly valve of hydraulic sealing structure | |
| CN103899768A (en) | Pressure self-sealing stop valve | |
| CN203784318U (en) | Self-sealing pressure stop valve | |
| CN204083345U (en) | A kind of low torque soft sealing stopcock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |
|
| CX01 | Expiry of patent term |