CN2088626U - Sound self-damping check valve - Google Patents
Sound self-damping check valve Download PDFInfo
- Publication number
- CN2088626U CN2088626U CN 91210578 CN91210578U CN2088626U CN 2088626 U CN2088626 U CN 2088626U CN 91210578 CN91210578 CN 91210578 CN 91210578 U CN91210578 U CN 91210578U CN 2088626 U CN2088626 U CN 2088626U
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- CN
- China
- Prior art keywords
- valve
- piston
- check valve
- damping
- utility
- 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.)
- Withdrawn
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- Details Of Valves (AREA)
- Check Valves (AREA)
Abstract
The utility model relates to a sound self-damping check valve. A casing is composed of a front valve body and a back valve body. A main and an auxiliary valve clacks and a set of damper systems are arranged in the casing, wherein, the damper systems comprises a one-way valve, a damping hole, a piston and a cylinder block, and the piston and the main and the auxiliary valve clacks are integrally connected together through shafts. The utility model is not limited by the directivity in installing, the harm of a water hammer can be effectively eliminated, the resistance consumed by the lifting valve clacks in moving can be eliminated, the noise is not provided, and the energy is saved.
Description
The utility model relates to a kind of safety check, and is particularly a kind of from hindering damping check valve.
In the medium pipeline system, medium flows backwards when preventing that pump from stopping, and all needs to install at the delivery side of pump place safety check.Generally adopt two types of safety check at present both at home and abroad, a kind of is Lift check valve, and a kind of is spin-up formula safety check.The disadvantage of these two kinds of valves is: when pump is shut down; can produce and exceed several times water hammer pressure than pipe-line system pressure; produce powerful noise; even cause pipeline breaking; pump house is flooded; and the flap of two kinds of safety check all needs tube road medium to be in operation to promote flap just can flow through, and also can be in operation produces vibration and resistance, causes energy waste.
The purpose of this utility model provides a kind of improved from hindering damping check valve.It can limit the harm of water hammer effectively, has also eliminated the resistance that promotion flap in service is consumed simultaneously, has saved the energy.
The purpose of this utility model is achieved in that the front and back valve body of a casting links into an integrated entity with screw, form a shell, an one major-minor flap and a cover damped system are housed in the enclosure, and wherein damped system comprises one-way valve, damping hole, piston, cylinder body, cylinder cap.Cylinder body is connected with screw with cylinder cap, and piston and major-minor flap connect as one by axle, promptly at the two ends of axle the major-minor flap are housed, and damping hole and one-way valve are assembled on the cylinder cap.
The utility model has the advantages that: not limited by directivity, both can level install, also can vertically install, not only limit the harm of water hammer effectively, and can also eliminate operating vibration noise and resistance, energy saving.
Do embodiment's explanation below in conjunction with accompanying drawing.
Fig. 1 is a structural drawing of the present utility model.
As shown in Figure 1, front valve shell 1 is cast member with rear valve body 9, connects as one with screw after the moulding, as the shell of valve.Cast a cylinder body 7 in rear valve body 9, the piston 6 of a tape spool is housed in cylinder body 7, main valve clack 2 and secondary flap 8 are housed at the axle two ends, cylinder cap 3 is affixed with cylinder body 7 usefulness screws, and one-way valve 5 and damping hole 4 are housed on cylinder cap 3.
Working principle: when starting of pump station, under the compression shock of medium, promote main valve clack 2 and move right through front valve shell 1, meanwhile piston 6 moves right, seal this moment and form vacuum in the cylinder, medium enters in the valve seal cylinder through one-way valve 5, valve formally starts, medium enters into pipe-line system along the outlet of the import of front valve shell 1 and rear valve body 9 and runs well, and this moment, flap 2 remained static, and had overcome the vibration that flap produced and the resistance of Lift check valve and spin-up formula safety check.When water pump shuts down, the pipeline medium under the conduction of water hammer ripple, from rear valve body 9 outlet ports to return flowing backwards, in pipeline under the effect of medium anti-force, promote the back side of secondary flap 8 and main valve clack 2, drive piston 6 to left movement, at this moment, produce pressure locking one-way valve 5 in the oil hydraulic cylinder, have only that damping hole 4 flows out from the cylinder cap 3, thereby delayed the shut-in time of main valve clack 2, water hammer is eliminated naturally, played the effect of eliminating the noise from resistance.
Claims (1)
1, a kind of from hindering damping check valve, it is characterized in that having the front and back valve body of a casting to link into an integrated entity with screw, form a shell, an one major-minor flap and a cover damped system are housed in the enclosure, wherein damped system comprises one-way valve, damping hole, piston, cylinder body, cylinder cap, and cylinder body is connected with screw with cylinder cap, and piston and major-minor flap connect as one by axle, promptly at the two ends of axle the major-minor flap is housed, damping hole and one-way valve are assembled on the cylinder cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91210578 CN2088626U (en) | 1991-05-14 | 1991-05-14 | Sound self-damping check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91210578 CN2088626U (en) | 1991-05-14 | 1991-05-14 | Sound self-damping check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2088626U true CN2088626U (en) | 1991-11-13 |
Family
ID=4919360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91210578 Withdrawn CN2088626U (en) | 1991-05-14 | 1991-05-14 | Sound self-damping check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2088626U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759050A (en) * | 2014-01-17 | 2014-04-30 | 哈电集团哈尔滨电站阀门有限公司 | Novel check valve controlled to be closed |
| CN108167523A (en) * | 2018-01-22 | 2018-06-15 | 博纳斯威阀门股份有限公司 | A kind of slowly closed silencing check valve with built-in damping system |
| CN110848424A (en) * | 2019-12-25 | 2020-02-28 | 博纳斯威阀门股份有限公司 | Multi-stage adjustable slow-closing check valve |
| CN110878857A (en) * | 2019-12-25 | 2020-03-13 | 博纳斯威阀门股份有限公司 | Axial flow type slow-closing check valve |
-
1991
- 1991-05-14 CN CN 91210578 patent/CN2088626U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759050A (en) * | 2014-01-17 | 2014-04-30 | 哈电集团哈尔滨电站阀门有限公司 | Novel check valve controlled to be closed |
| CN108167523A (en) * | 2018-01-22 | 2018-06-15 | 博纳斯威阀门股份有限公司 | A kind of slowly closed silencing check valve with built-in damping system |
| CN108167523B (en) * | 2018-01-22 | 2023-10-31 | 博纳斯威阀门股份有限公司 | Silencing slow-closing check valve with built-in damping system |
| CN110848424A (en) * | 2019-12-25 | 2020-02-28 | 博纳斯威阀门股份有限公司 | Multi-stage adjustable slow-closing check valve |
| CN110878857A (en) * | 2019-12-25 | 2020-03-13 | 博纳斯威阀门股份有限公司 | Axial flow type slow-closing check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |