CN102003557A - Adjustable high-pressure micro-resistance slow closing check valve for ultradeep coal mine - Google Patents
Adjustable high-pressure micro-resistance slow closing check valve for ultradeep coal mine Download PDFInfo
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- CN102003557A CN102003557A CN 201010535410 CN201010535410A CN102003557A CN 102003557 A CN102003557 A CN 102003557A CN 201010535410 CN201010535410 CN 201010535410 CN 201010535410 A CN201010535410 A CN 201010535410A CN 102003557 A CN102003557 A CN 102003557A
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- valve
- valve body
- cushion cylinder
- clack
- flap
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Abstract
The invention relates to an adjustable high-pressure micro-resistance slow closing check valve for an ultradeep coal mine, which comprises a valve body, wherein a valve seat on the flow channel of the valve body is provided with a valve clack. The innovative points of the check valve lie in that: a cushion cylinder is arranged in the valve body; the axis of the cushion cylinder coincides with that of the valve clack; the piston of the cushion cylinder is connected and fixed with the valve clack; and the rod cavity of the cushion cylinder is communicated with a rod-free cavity of the cushion cylinder through a bypass pipe. A throttling valve positioned outside the valve body is arranged in the bypass pipe. The check valve has the advantages that: when the pressure on the inlet side of the flow channel of the valve body is lower than that on the outlet side, the valve clack closes slowly under the action of self gravity, spring or other factors, with the piston connected with the valve clack moving slowly in the cushion cylinder when the clack closes; therefore, water hammer is prevented so as not to damage the valve of the pipe. The throttling valve positioned outside the valve body is arranged in the bypass pipe of the cushion cylinder to regulate the flow of the bypass pipe, so the control over the closing speed of the piston and the valve clack is realized.
Description
Technical field
The present invention relates to a kind of safety check, particularly a kind of adjustable high-voltage micro-resistance slowly-closed formula safety check that is used for super dark colliery,
Background technique
Safety check claims one-way valve or check valve again, and its effect is to prevent that the medium in the pipeline from flowing backwards.Working principle is that the flap of safety check is opened under fluid pressure action, and fluid flows to outlet side from suction side.When suction side pressure was lower than outlet side, flap was closed under factor effects such as fluid pressure difference, gravity own automatically in case the fluid stopping body flows backwards.By traditional safety check is quick non-return, rapider when promptly flap is closed, and when this kind safety check being installed on the pressure duct in super dark colliery, safety check flap quick-make meeting causes and occurs water hammer in the high pressure pipe line, easily causes the damage of pressure duct valve.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of adjustable high-voltage micro-resistance slowly-closed formula safety check that is used for super dark colliery, and flap is slowly closed, avoids pipeline water hammer to occur and causes conduit failure.
For solving the problems of the technologies described above, technological scheme of the present invention is: a kind of adjustable high-voltage micro-resistance slowly-closed formula safety check of super dark colliery, comprise valve body, and on the valve seat of valve flowing channel, be provided with a flap; Its innovative point is: also be provided with a cushion dashpot in the described valve body, and the axis of this cushion dashpot and flap dead in line, the piston and the flap of cushion dashpot are connected and fixed, and the rod chamber and the rodless cavity of cushion dashpot are communicated with by bypass line.
Further, the throttle valve that is positioned at outside the valve body is installed on the described bypass line.
The invention has the advantages that: after valve flowing channel suction side pressure is lower than outlet side pressure, flap is closed in the effect of factors such as deadweight, spring, and flap when closing owing to be connected with the piston of cushion dashpot, piston slowly moves in cushion dashpot, make flap slowly close, avoid occurring the damage that water hammer causes pipe valve.And the throttle valve that is positioned at outside the valve body is installed on the bypass line of cushion dashpot, and can the flow of bypass line be regulated, thus the control of realization piston and flap closing speed.
Description of drawings
Accompanying drawing is the adjustable high-voltage micro-resistance slowly-closed formula check valve structure schematic representation in the super dark colliery of the present invention.
Embodiment
As shown in drawings, comprise valve body 1, flap 2, return spring 3, guide sleeve 4, return spring 5, cushion dashpot 6, piston 7, bypass line 8, throttle valve 9.
The runner valve seat of above-mentioned valve body 1 is provided with a flap 2, and the back of flap 2 is connected with a guide rod 3, and guide rod 3 is slidingly connected with the guide sleeve 4 that is fixed on valve body 1 end face, is set with two spring seats on the guide rod 3, and return spring 5 is installed between two spring seats.
After valve flowing channel suction side pressure is lower than outlet side pressure, flap 2 moves down under deadweight, spring 5 effects and closes, and the piston 7 that is connected with flap 2 slowly moves in cushion dashpot 6, makes flap 2 slowly close, and avoids occurring the damage that water hammer causes pipe valve.
Claims (2)
1. the adjustable high-voltage micro-resistance slowly-closed formula safety check in a super dark colliery comprises valve body, is provided with a flap on the valve seat of valve flowing channel; It is characterized in that: also be provided with a cushion dashpot in the described valve body, the axis of this cushion dashpot and flap dead in line, the piston and the flap of cushion dashpot are connected and fixed, and the rod chamber and the rodless cavity of cushion dashpot are communicated with by bypass line.
2. the adjustable high-voltage micro-resistance slowly-closed formula safety check in super dark colliery according to claim 1 is characterized in that: the throttle valve that is positioned at outside the valve body is installed on the described bypass line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010535410 CN102003557A (en) | 2010-11-09 | 2010-11-09 | Adjustable high-pressure micro-resistance slow closing check valve for ultradeep coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010535410 CN102003557A (en) | 2010-11-09 | 2010-11-09 | Adjustable high-pressure micro-resistance slow closing check valve for ultradeep coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102003557A true CN102003557A (en) | 2011-04-06 |
Family
ID=43811156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010535410 Pending CN102003557A (en) | 2010-11-09 | 2010-11-09 | Adjustable high-pressure micro-resistance slow closing check valve for ultradeep coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102003557A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836237A (en) * | 2012-11-23 | 2014-06-04 | 凯泰阀门(集团)有限公司 | Shuttle-shaped adjustable check valve |
| WO2014094599A1 (en) * | 2012-12-19 | 2014-06-26 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
| CN108468840A (en) * | 2018-05-21 | 2018-08-31 | 上海瑞晨环保科技有限公司 | Micro-resistance slowly-closed type underwater bottom valve |
| CN109990121A (en) * | 2019-04-18 | 2019-07-09 | 黑龙江北方阀业有限责任公司 | A kind of swing check valve |
| CN113266688A (en) * | 2021-06-15 | 2021-08-17 | 黄建斌 | Slow-closing ball check valve |
| CN113944763A (en) * | 2021-10-09 | 2022-01-18 | 欧维克集团有限公司 | High-performance zero-leakage axial flow type check valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210631U (en) * | 1987-10-12 | 1988-04-20 | 沈阳市卫生洁具厂 | Buffer non-return valve |
| JPH11344138A (en) * | 1998-03-31 | 1999-12-14 | Kayaba Ind Co Ltd | Hydraulic buffer check valve |
| CN201137729Y (en) * | 2007-12-28 | 2008-10-22 | 辽宁能发伟业能源科技有限公司 | Multilevel amortization total distance guiding check-valve damping oil cylinder |
| CN201866348U (en) * | 2010-11-09 | 2011-06-15 | 南通龙源电站阀门有限公司 | Adjustable-type high-pressure micro-resistance slow-closing check valve of ultra-deep coal mine |
-
2010
- 2010-11-09 CN CN 201010535410 patent/CN102003557A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87210631U (en) * | 1987-10-12 | 1988-04-20 | 沈阳市卫生洁具厂 | Buffer non-return valve |
| JPH11344138A (en) * | 1998-03-31 | 1999-12-14 | Kayaba Ind Co Ltd | Hydraulic buffer check valve |
| CN201137729Y (en) * | 2007-12-28 | 2008-10-22 | 辽宁能发伟业能源科技有限公司 | Multilevel amortization total distance guiding check-valve damping oil cylinder |
| CN201866348U (en) * | 2010-11-09 | 2011-06-15 | 南通龙源电站阀门有限公司 | Adjustable-type high-pressure micro-resistance slow-closing check valve of ultra-deep coal mine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103836237A (en) * | 2012-11-23 | 2014-06-04 | 凯泰阀门(集团)有限公司 | Shuttle-shaped adjustable check valve |
| WO2014094599A1 (en) * | 2012-12-19 | 2014-06-26 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
| CN108468840A (en) * | 2018-05-21 | 2018-08-31 | 上海瑞晨环保科技有限公司 | Micro-resistance slowly-closed type underwater bottom valve |
| CN109990121A (en) * | 2019-04-18 | 2019-07-09 | 黑龙江北方阀业有限责任公司 | A kind of swing check valve |
| CN113266688A (en) * | 2021-06-15 | 2021-08-17 | 黄建斌 | Slow-closing ball check valve |
| CN113944763A (en) * | 2021-10-09 | 2022-01-18 | 欧维克集团有限公司 | High-performance zero-leakage axial flow type check valve |
| CN113944763B (en) * | 2021-10-09 | 2023-11-24 | 欧维克集团有限公司 | High-performance zero-leakage axial flow type check valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110406 |