CN2119548U - Automatic gate valve with relayedic closing action - Google Patents
Automatic gate valve with relayedic closing action Download PDFInfo
- Publication number
- CN2119548U CN2119548U CN 92213034 CN92213034U CN2119548U CN 2119548 U CN2119548 U CN 2119548U CN 92213034 CN92213034 CN 92213034 CN 92213034 U CN92213034 U CN 92213034U CN 2119548 U CN2119548 U CN 2119548U
- Authority
- CN
- China
- Prior art keywords
- valve
- gate valve
- hydraulic cylinder
- oil hydraulic
- piston
- 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.)
- Pending
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Abstract
The utility model relates to an automatic slow-closing gate valve used for the pressure water-delivery pump station. The automatic slow-closing gate valve is mainly connected by a gate valve, a hydraulic cylinder, a piston, a stop check valve, a change valve and a corresponding pipeline. The utility model is mainly made use of the hydraulic change in the pipeline after a water pump is opened or closed to control the opening and the closing of the gate valve. Consequently, the original motor operated gate valve, the check valve, and the water hammer arrestor can be replaced, the head loss of the pipeline can be reduced, and the power saving purpose can be obtained.
Description
The utility model relates to a kind of pipeline gate-valve device, especially a kind of gate valve that utilizes the automatic Slow Close of pressure of aqueous medium in the pipeline.
At present, domestic pressurized water transmission pumping plant in its pipeline, all is equipped with electric gate valve usually, safety check and water-hammer arrester, and loss of head is big, and the resistance coefficient of Swing check valve is big, very wastes electric energy.
The purpose of this utility model provides a kind of automatic Slow Close gate valve, and it not only can replace the electric gate valve in the primary tube road, safety check and water-hammer arrester, and also the pipeline loss of head is little, but and saving power.
The purpose of this utility model is achieved in that on the top of gate valve oil hydraulic cylinder and piston is housed, be connected with gate valve is vertical, side at oil hydraulic cylinder is equipped with screw down nonreturn valve, be connected with oil hydraulic cylinder by two pipelines up and down, opposite side at oil hydraulic cylinder is equipped with out the valve intake pipe and closes intake pipe, and be connected with selector valve by these two pipelines, then communicate with gate valve by intake pipe behind the valve.When promoting piston, the pressure that can utilize water in the pipeline behind the starting mode of pump moves Open valve; After water pump cut out, manifold pressure descended, and piston moves down, and made valve earlier fast, after close lentamente, thereby reach the effect that makes the automatic Slow Close of gate valve.
The utility model is described in further detail below in conjunction with drawings and Examples:
As figure is the utility model structural representation.
Among the figure: 1, gate valve 2, oil hydraulic cylinder 3, hydraulic cylinder piston 4, screw down nonreturn valve 5, spring 6, indicator board 7, stop screw 8, close intake pipe 9, open valve intake pipe 10, intake pipe behind the selector valve 11, selector valve big piston 12, selector valve small piston 13, offlet 14,15 valves
Automatically the Slow Close gate valve vertically is loaded on the pipeline, behind starting mode of pump, earlier screw down nonreturn valve (4) is closed, the interior conduit water flowing of valve front side, pressure rises, and when hydraulic pressure reached 0.3MPa, press water backed down selector valve (10), and enter oil hydraulic cylinder (2) bottom through opening valve intake pipe (9), hydraulic cylinder piston (3) moves upward under the effect of press water, opens valve, selector valve big piston (11) and small piston (12) move down, and oil hydraulic cylinder epicoele water is through closing intake pipe
(8) discharge, piston (3) is moved on can be rapidly, behind valve wide open, unlatching screw down nonreturn valve (4).
After water pump cuts out, the valve pipe internal pressure descends, when hydraulic pressure is reduced to 0.2MPa, big small piston in the selector valve (10) (11,12) resets, spring in the oil hydraulic cylinder epicoele (5) promotes piston (3) rapid movement downwards, oil hydraulic cylinder cavity of resorption water arrives the oil hydraulic cylinder epicoele through screw down nonreturn valve (4) moisturizing, enter the oil hydraulic cylinder epicoele through selector valve (10), promoting piston (3) moves down, when piston (3) moves to the lower end mouth of screw down nonreturn valve (4), the quick closing valve stage finishes, and valve closes slowly until the valve complete shut-down.Owing to divide the speed two-stage to close, thereby prevented the generation of water hammer effectively.
Claims (3)
1, a kind of automatic Slow Close gate valve is is mainly connected and composed by gate valve, oil hydraulic cylinder, piston, selector valve, it is characterized in that: oil hydraulic cylinder (2), piston (3) are housed respectively on gate valve (1), reach screw down nonreturn valve (4) and selector valve (10).
2, automatic Slow Close according to claim 1 valve once, it is characterized in that: screw down nonreturn valve (4) is contained in oil hydraulic cylinder (2) one sides, and links to each other with oil hydraulic cylinder (2) by two pipelines.
3, automatic Slow Close gate valve according to claim 1 is characterized in that: selector valve (10) is by leaving valve intake pipe (9), cut out intake pipe (8) and be connected with oil hydraulic cylinder (2), and links to each other with gate valve (1) by intake pipe (14,15) behind the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92213034 CN2119548U (en) | 1992-01-01 | 1992-01-01 | Automatic gate valve with relayedic closing action |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92213034 CN2119548U (en) | 1992-01-01 | 1992-01-01 | Automatic gate valve with relayedic closing action |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2119548U true CN2119548U (en) | 1992-10-21 |
Family
ID=4957837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92213034 Pending CN2119548U (en) | 1992-01-01 | 1992-01-01 | Automatic gate valve with relayedic closing action |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2119548U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678951A (en) * | 2012-05-29 | 2012-09-19 | 浙江中超工业视镜有限公司 | Automatic pressure regulating type gate valve |
| CN102818055A (en) * | 2012-09-11 | 2012-12-12 | 中国人民解放军总后勤部油料研究所 | Automatic block valve |
| CN110735800A (en) * | 2019-11-25 | 2020-01-31 | 扬州江天流量仪表有限公司 | novel micro-resistance slow-closing check valve and operation method thereof |
-
1992
- 1992-01-01 CN CN 92213034 patent/CN2119548U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678951A (en) * | 2012-05-29 | 2012-09-19 | 浙江中超工业视镜有限公司 | Automatic pressure regulating type gate valve |
| CN102818055A (en) * | 2012-09-11 | 2012-12-12 | 中国人民解放军总后勤部油料研究所 | Automatic block valve |
| CN110735800A (en) * | 2019-11-25 | 2020-01-31 | 扬州江天流量仪表有限公司 | novel micro-resistance slow-closing check valve and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |