CN204153232U - Rock gas Swing check valve - Google Patents
Rock gas Swing check valve Download PDFInfo
- Publication number
- CN204153232U CN204153232U CN201420498079.0U CN201420498079U CN204153232U CN 204153232 U CN204153232 U CN 204153232U CN 201420498079 U CN201420498079 U CN 201420498079U CN 204153232 U CN204153232 U CN 204153232U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve plate
- rock gas
- swing check
- valve body
- 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
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- Check Valves (AREA)
Abstract
The utility model relates to valve technology field, especially a kind of rock gas Swing check valve being installed on natural gas line conveying.This rock gas Swing check valve, comprise valve body and valve gap, valve seat is provided with in described valve body, valve body inner cavity is divided into air inlet section and air outlet section by valve seat, and valve interior wall is provided with hinge pin, and hinge pin is connected with the arm of force, arm of force end is connected with the first valve plate, first valve plate is provided with the second valve plate near air inlet section side, and the second valve plate circumference place is provided with the seal ring forming sealing configuration with valve seat, and described air outlet section inwall is provided with limiting stopper.The utility model structure is simple, reasonable in design, and switch is rapid, and when rock gas flows backwards, the second valve plate can not be closed simultaneously, thus impact force when alleviating closedown.
Description
Technical field
The utility model relates to valve technology field, especially a kind of rock gas Swing check valve being installed on natural gas line conveying.
Background technique
Be used for controlling the flow of gas or liquid in pipeline, reduce their pressure or change the parts of flow direction, being commonly referred to as valve.In natural gas line conveying, indispensable valve is safety check, is most popular a kind of valve.Safety check is again check valve or one-way valve.It relies on flowing automatic open and close second valve plate of medium itself, is used for preventing air-flow in pipeline from flowing backwards.When producing refluence, valve plate will be closed automatically.Safety check is generally used on the outlet conduit of natural gas compressor, shutdown or when having a power failure suddenly, prevent the pressurized gas in pipe from flowing backwards, this refluence often causes compressor high speed reverse rotation, formation mechanical accident.Traditional check valve structure is complicated, be not easy to processing, Operation and Maintenance is inconvenient, and due to the friction that valve plate is closed, easily cause the wearing and tearing of seal ring, working life is short, and sealability declines, and easily reveals.
Model utility content
The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provides a kind of structure simple, the rock gas Swing check valve of good sealing effect.
The utility model solves the technological scheme that its technical problem adopts: a kind of rock gas Swing check valve, comprise valve body and valve gap, valve seat is provided with in described valve body, valve body inner cavity is divided into air inlet section and air outlet section by valve seat, valve interior wall is provided with hinge pin, hinge pin is connected with the arm of force, arm of force end is connected with the first valve plate, first valve plate is provided with the second valve plate near air inlet section side, second valve plate circumference place is provided with the seal ring forming sealing configuration with valve seat, and described air outlet section inwall is provided with limiting stopper.
Further, the second described valve plate is fixedly mounted on the first valve plate by screw.
Further, gasket seal is provided with between described valve body and valve gap.
Further, described valve body and valve gap are fixedly mounted by clamping bolt.
Further, the second described valve plate is concave surface rubber second valve plate of the thick intermediate thin in both sides.
The beneficial effects of the utility model are: the utility model structure is simple, reasonable in design, switch is rapid, manufactures and overhauls all more convenient, long service life, valve plate rotates round sealing surface, and resistance is less, and when low pressure, sealability is poor, be used on major diameter or height, middle pressure pipeline, when rock gas flows backwards, the second valve plate can not be closed simultaneously, thus impact force when alleviating closedown.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
1. valve bodies, 2. valve gap, 3. air inlet section, 4. air outlet section, 5. hinge pin, the 6. arm of force in figure, 7. the first valve plate, 8. the second valve plate, 9. screw, 10. seal ring, 11. gasket seals, 12. clamping bolts, 13. limiting stoppers.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows the formation relevant with the utility model.
Rock gas Swing check valve as shown in Figure 1, comprise valve body 1 and valve gap 2, valve seat is provided with in valve body 1, valve body 1 inner cavity is divided into air inlet section 3 and air outlet section 4 by valve seat, and valve body 1 inwall is provided with hinge pin 5, and hinge pin 5 is connected with the arm of force 6, the arm of force 6 end is connected with the first valve plate 7, first valve plate 7 is provided with the second valve plate 8, second valve plate 8 circumference place and is provided with the seal ring 10 forming sealing configuration with valve seat near air inlet section 3 side, air outlet section 4 inwall is provided with limiting stopper 13.
Second valve plate 8 is fixedly mounted on the first valve plate 7 by screw 9; Gasket seal 11 is provided with between valve body 1 and valve gap 2; Valve body 1 and valve gap 2 are fixedly mounted by clamping bolt 2; Second valve plate 8 is the concave surface rubber valve plate of the thick intermediate thin in both sides.
During normal work, rock gas enters from air inlet section 3, at Imported gas forced under pressure second valve plate 8 around hinge pin 5 Unscrew, enters air outlet section 4 and circulates; When shutdown or when having a power failure suddenly, the first valve plate 7 will be closed automatically, prevent the pressurized gas in pipe from flowing backwards.
Above-mentioned mode of execution is only for illustrating technical conceive of the present utility model and feature; its object is to person skilled in the art can be understood content of the present utility model and be implemented; protection domain of the present utility model can not be limited with this; all equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.
Claims (5)
1. a rock gas Swing check valve, it is characterized in that: comprise valve body (1) and valve gap (2), described valve body is provided with valve seat in (1), valve body (1) inner cavity is divided into air inlet section (3) and air outlet section (4) by valve seat, valve body (1) inwall is provided with hinge pin (5), hinge pin (5) is connected with the arm of force (6), the arm of force (6) end is connected with the first valve plate (7), first valve plate (7) is provided with the second valve plate (8) near air inlet section (3) side, second valve plate (8) circumference place is provided with the seal ring (10) forming sealing configuration with valve seat, described air outlet section (4) inwall is provided with limiting stopper (13).
2. rock gas Swing check valve according to claim 1, is characterized in that: described the second valve plate (8) is fixedly mounted on the first valve plate (7) by screw (9).
3. rock gas Swing check valve according to claim 1, is characterized in that: be provided with gasket seal (11) between described valve body (1) and valve gap (2).
4. rock gas Swing check valve according to claim 1, is characterized in that: described valve body (1) and valve gap (2) are fixedly mounted by clamping bolt (12).
5. rock gas Swing check valve according to claim 1, is characterized in that: the concave surface rubber valve plate that described the second valve plate (8) is the thick intermediate thin in both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498079.0U CN204153232U (en) | 2014-08-30 | 2014-08-30 | Rock gas Swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498079.0U CN204153232U (en) | 2014-08-30 | 2014-08-30 | Rock gas Swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204153232U true CN204153232U (en) | 2015-02-11 |
Family
ID=52511348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420498079.0U Expired - Fee Related CN204153232U (en) | 2014-08-30 | 2014-08-30 | Rock gas Swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204153232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390038A (en) * | 2014-09-12 | 2015-03-04 | 诸文伟 | Natural gas rotary opening type check valve |
-
2014
- 2014-08-30 CN CN201420498079.0U patent/CN204153232U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390038A (en) * | 2014-09-12 | 2015-03-04 | 诸文伟 | Natural gas rotary opening type check 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 |
Granted publication date: 20150211 Termination date: 20150830 |
|
| EXPY | Termination of patent right or utility model |