CN201090799Y - Energy change type slow closing non-return butterfly valve - Google Patents
Energy change type slow closing non-return butterfly valve Download PDFInfo
- Publication number
- CN201090799Y CN201090799Y CNU2007200915580U CN200720091558U CN201090799Y CN 201090799 Y CN201090799 Y CN 201090799Y CN U2007200915580 U CNU2007200915580 U CN U2007200915580U CN 200720091558 U CN200720091558 U CN 200720091558U CN 201090799 Y CN201090799 Y CN 201090799Y
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- China
- Prior art keywords
- valve
- oil cylinder
- pipeline
- damping oil
- cavity
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- Expired - Fee Related
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- Check Valves (AREA)
Abstract
Disclosed is a transduction slow-closing check butterfly valve which comprises a valve body (1), a valve plate (2) arranged in the channel of the valve body through a valve rod (12) and a transduction hydraulic slow-closing mechanism connected with the extended end of the valve rod. The utility model is characterized in that the transduction hydraulic slow-closing mechanism comprises a frame body (13) integrated with the valve body, a damping oil cylinder (9) hinged with the frame body through the lug shafts arranged on both sides of the cylinder body, an idle stroke guide rail (10) arranged on the extended end of the piston rod of the damping oil cylinder and a rocker arm (8) whose one end is fixedly connected with the extended end of the valve rod and the other end is connected with the idle stroke guide rail; the hydraulic cavity of the damping oil cylinder is communicated with the channel of the valve body through a connecting pipeline, a throttle valve (7) and a transducer (6) which are arranged between the pipelines; a reversal torsion spring (11) is arranged between the extended end of a valve shaft and the rocker arm (8). The transduction slow-closing check butterfly valve can prevent the influence on the opening of the damping and the valve due to the air generated in the oil cylinder, so that the slow-closing process is ensured; thereby, the purpose of eliminating the water hammer is achieved completely.
Description
Technical field
The utility model relates to a kind of safety check, relates to a kind of transducing formula Slow Close non-return butterfly valve specifically.
Background technique
Slow Close mechanism in the butterfly check valve closed slowly of prior art is because of due to its structure, when system is in lower pressure state, can't make the aperture of valve plate reach desirable opening state, because aperture is less, cause the Slow Close oil cylinder to stretch out, cause the Slow Close action to lose efficacy, do not reach desirable using effect, cause generation water hammer and the valve situation of fitting badly to happen occasionally.
Summary of the invention
The purpose of this utility model is pointed out at above-mentioned the deficiencies in the prior art just and a kind of transducing formula Slow Close non-return butterfly valve is provided.This butterfly valve makes transducer be converted into damping oil cylinder rodless cavity oil pressure by the pressure in the valve inlet side pipe road, promotes piston rod and stretches out, and when termination of pumping, by the effective action of damping oil cylinder, eliminates destructive water hammer and noise.
The purpose of this utility model can adopt following technique measures to realize:
Transducing formula buffer valve of the present utility model comprises valve body, be installed in valve plate in the valve flowing channel by valve rod, and the transducing formula hydraulic pressure Slow Close mechanism that is connected with the outer extending end of valve rod, described hydraulic pressure Slow Close mechanism comprises the Rack Body that combines with valve body, Buddhist nun's oil cylinder that gudgeon by being arranged on the cylinder body both sides and Rack Body are hinged, be arranged on the idle stroke guide rail of damping oil cylinder piston rod overhanging end, and an end and the outer extending end Joint of valve rod, the rocking arm that the other end is connected with the idle stroke guide rail; The hydraulic pressure cavity of damping oil cylinder is connected with valve flowing channel by connecting pipeline and the throttle valve, the transducer that are arranged between pipeline; Between the outer extending end of valve shaft and rocking arm, be provided with the counter-rotating torsion spring.
Transducer described in the utility model is made up of the hollow body that is divided into two individual cavity by barrier film, one of them cavity is connected with the valve inlet side runner by pipeline, and another cavity is connected with the Rodless hydraulic chamber of damping oil cylinder by throttle valve and connecting pipeline; The effect of throttle valve mainly is the speed that is used for the regulating valve unlatching or closes.
The working principle of the utility model valve is as follows:
When water pump is started shooting, the pressure medium that enters in the valve inlet side runner enters in the transducer one side cavity by the pipeline that is connected with transducer, the cavity barrier film that is positioned at transducer is under pressure to another cavity side projection, force the interior hydraulic oil of this cavity to enter the Rodless hydraulic chamber of damping oil cylinder, piston rod is released, valve plate is under the effect of pressure medium simultaneously, drive valve shaft and begin rotation, valve plate is opened under less resistance fast, when being opened to 80 °, under the effect of counter-rotating torsion spring, entering slowly and open.When termination of pumping, valve plate, enters soon and closes the stage the acting in conjunction of valve plate in reverse torsion spring and medium back flow; When valve plate was got back to 20～30 °, damping oil cylinder worked, and made valve plate enter the Slow Close stage, regulated the throttle valve on the transducer, can adjust the Slow Close time.The throttle valve that is provided with in the mechanism is used for regulating and opens the time of quick closing valve soon.
Butterfly valve of the present utility model makes transducer be converted into damping oil cylinder rodless cavity oil pressure by the pressure in the valve inlet side pipe road, promotes piston rod and stretches out, and when termination of pumping, by the effective action of damping oil cylinder, eliminates destructive water hammer and noise.Can be widely used in (particularly being under the low-pressure operating mode at exit of pump) under the different pressure working conditions, stop because of producing air in the oil cylinder, the influence that damping and valve opening are obstructed makes slowly that the pass process is guaranteed, thereby also thoroughly reaches the purpose of the hammer that disappears.
Description of drawings
Fig. 1 is plan view of the present utility model (partial sectional view).
Fig. 2 is that the A of Fig. 1 is to view
Sequence number among the figure: 1. valve body, 2. valve plate, 3. seal ring, 4. platen, 5. screw, 6. transducer, 7. throttle valve, 8. rocking arm, 9. damping oil cylinder, 10. idle stroke guide rail, 11. counter-rotating torsion springs, 12. valve rods, 13. Rack Bodies.
Embodiment
The utility model is done to further describe below with reference to embodiment's (accompanying drawing):
As Fig. 1, shown in 2, transducing formula buffer valve of the present utility model comprises valve body 1, be installed in valve plate 2 in the valve flowing channel by valve rod 12, and the transducing formula hydraulic pressure Slow Close mechanism that is connected with the outer extending end of valve rod 12, described hydraulic pressure Slow Close mechanism comprises the Rack Body 13 that combines with valve body 1, the damping oil cylinder 9 that gudgeon by being arranged on the cylinder body both sides and Rack Body 13 are hinged, be arranged on the idle stroke guide rail 10 of Buddhist nun's oil cylinder piston bar overhanging end, and the outer extending end Joint of an end and valve rod 12, the rocking arm 8 that the other end is connected with the guiding groove of idle stroke guide rail 10 by guiding element; The hydraulic pressure cavity of damping oil cylinder 9 is connected with valve flowing channel by connecting pipeline and the throttle valve 7, the transducer 6 that are arranged between pipeline; Between the outer extending end of valve shaft 12 and rocking arm 8, be provided with counter-rotating torsion spring 11; Described transducer 6 is made up of the hollow body that is divided into two individual cavity by barrier film, one of them cavity is connected with the valve inlet side runner by pipeline, and another cavity is connected with the Rodless hydraulic chamber of damping oil cylinder 9 by pipeline and the throttle valve 7 that is arranged between pipeline.
Claims (2)
1. transducing formula buffer valve, it comprises valve body (1), be installed in the interior valve plate (2) of valve flowing channel by valve rod (12), and the transducing formula hydraulic pressure Slow Close mechanism that is connected with the outer extending end of valve rod (12), it is characterized in that: described hydraulic pressure Slow Close mechanism comprises the Rack Body (13) that combines with valve body (1), the damping oil cylinder (9) that gudgeon by being arranged on the cylinder body both sides and Rack Body (13) are hinged, be arranged on the idle stroke guide rail (10) of Buddhist nun's oil cylinder piston bar overhanging end, and the outer extending end Joint of an end and valve rod (12), the rocking arm (8) that the other end is connected with idle stroke guide rail (10); The hydraulic pressure cavity of damping oil cylinder (9) is connected with valve flowing channel by connecting pipeline and the throttle valve (7), the transducer (6) that are arranged between pipeline; Between the outer extending end of valve shaft (12) and rocking arm (8), be provided with counter-rotating torsion spring (11).
2. transducing formula buffer valve according to claim 1, it is characterized in that: described transducer (6) is made up of the hollow body that is divided into two individual cavity by barrier film, one of them cavity is connected with the valve inlet side runner by pipeline, and another cavity is connected with the Rodless hydraulic chamber of damping oil cylinder (9) by pipeline and the throttle valve (7) that is arranged between pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200915580U CN201090799Y (en) | 2007-08-21 | 2007-08-21 | Energy change type slow closing non-return butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200915580U CN201090799Y (en) | 2007-08-21 | 2007-08-21 | Energy change type slow closing non-return butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090799Y true CN201090799Y (en) | 2008-07-23 |
Family
ID=39862559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200915580U Expired - Fee Related CN201090799Y (en) | 2007-08-21 | 2007-08-21 | Energy change type slow closing non-return butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090799Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917907A (en) * | 2015-12-26 | 2017-07-04 | 中国石油天然气集团公司 | A kind of pneumatic actuator for one-way damper valve |
| CN114704650A (en) * | 2022-04-01 | 2022-07-05 | 特技阀门集团有限公司 | Hydraulic control non-return butterfly valve for eliminating water hammer |
-
2007
- 2007-08-21 CN CNU2007200915580U patent/CN201090799Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106917907A (en) * | 2015-12-26 | 2017-07-04 | 中国石油天然气集团公司 | A kind of pneumatic actuator for one-way damper valve |
| CN106917907B (en) * | 2015-12-26 | 2019-10-11 | 中国石油天然气集团公司 | A kind of pneumatic actuator for one-way damper valve |
| CN114704650A (en) * | 2022-04-01 | 2022-07-05 | 特技阀门集团有限公司 | Hydraulic control non-return butterfly valve for eliminating water hammer |
| CN114704650B (en) * | 2022-04-01 | 2023-12-22 | 特技阀门集团有限公司 | Hydraulic control check butterfly valve for eliminating water hammer |
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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: 20080723 Termination date: 20150821 |
|
| EXPY | Termination of patent right or utility model |