CN2153686Y - Non-return valve with guided stem - Google Patents
Non-return valve with guided stem Download PDFInfo
- Publication number
- CN2153686Y CN2153686Y CN 92209044 CN92209044U CN2153686Y CN 2153686 Y CN2153686 Y CN 2153686Y CN 92209044 CN92209044 CN 92209044 CN 92209044 U CN92209044 U CN 92209044U CN 2153686 Y CN2153686 Y CN 2153686Y
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- valve seat
- valve body
- guide sleeve
- 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 a non-return valve with guided stream, which comprises a valve body, a valve seat, a valve flap, a guiding sleeve, a stream guiding cylinder, and a spring. The valve flap and the valve seat are conical sealing surfaces, and a stream guiding space is formed between the surface of the outside of the stream guiding cylinder and the surface of the inside of the valve body. The utility model has rather steady medium flow, small flow resistance, energy-saving meaning, small opening height, short closing time, and small medium backflow, and effectively eliminates the water hammer. At the same time, the installing direction of the valve is not limited. The utility model is suitable for supplying for the one-way opening and closing for preventing the medium backflow on various pipelines or equipment.
Description
The utility model relates to a kind of safety check.
Safety check is for using for the unidirectional keying that prevents the medium counter flow on various pipes or the equipment.Existing check valve structure form has Lift check valve, Swing check valve, Wafer Check Valves and bottom valve.Lift check valve has three kinds of straight-through type (as the H41 type), vertical (as the H42 type) and angie types (as the H43 type).Vertical lifting safety check (as the H42 type) structure comprises valve body, valve seat, flap, guide sleeve, referring to " valve products sample " (China Machine Press, in October, 1985 version) the 370th page, flap is led by guide sleeve, guide sleeve and valve body link together, the vertical installation of valve, medium from bottom to top passes through, and prevents that medium from from top to bottom flowing backwards.This check valve receptacle and valve body are made as one, and promptly valve body produces valve seat through processing.Because the processing technology relation, there is technology groove in the valve seat outside, makes media flow not steady; Valve seat and flap sealing surface are plane sealing, and it is bigger to make that medium is subjected to the resistance of flap and valve seat; Form a triangular ring space between flap upside and the guide sleeve, make media flow not steady.For above-mentioned reasons, this safety check resistance coefficient is bigger, and flow resistance is big, and the pressure medium loss is big, and energy consumption is bigger.In addition, because sealing surface is a plane sealing, for reaching the circulation area of regulation, make that the flap Lift is big, the flap shut-in time is longer.
The purpose of this utility model is the shortcoming that overcomes existing vertical lifting safety check, and the safety check that a kind of flow resistance is little, energy-conservation, the shut-in time is short is provided.
The utility model structure comprises valve body (1), valve seat (6), flap (4), guide sleeve (3), spring (5), spring (5) places between flap (4) and the guide sleeve (3), valve seat (6) and guide sleeve (3) are individually fixed on the valve body (1), guide sleeve (3) has guide shell (2) structure, guide shell (2) outer surface and valve body (1) inner surface form diversion space, and flap (4) is a conical seal (contact) face with valve seat (6).
Guide sleeve (3) can be positioned at the middle part of guide shell (2), and flap (4) contacts spacing with guide shell (2) lower end surface.
Be further to reduce flow resistance, the circular arc line (B) of the inner surface that the bus (A) of valve seat (6) conical surface and valve body (1) are located at valve seat (6) is tangent.
Accompanying drawing is an embodiment of the present utility model.Among the figure, 1 is valve body, and 2 is guide shell, and 3 is guide sleeve, and 4 is flap, and 5 is spring, and 6 is valve seat.
The utility model valve seat and flap are conical seal (contact) face, and MEDIA FLOW can be passed through when valve seat and flap smoothly, and flow resistance is little; Guide sleeve (3) has guide shell (2) structure, has eliminated the triangular ring space between prior art flap upside and the guide sleeve, and media flow is quite steady, thereby makes the utility model flow resistance little, and the pressure loss is little, energy saving.Simultaneously, because valve seat (6) is a conical seal (contact) face with flap (4), and flap (4) is spacing by guide shell (2) lower end surface, make flap (4) Lift reduce greatly, thereby make the shut-in time short (be 0.2～1S), medium back flow is little, offset except that water hammer extremely effective.In addition, owing to adopt spring to make the flap return, the valve installation direction can uprightly be installed, accumbency is installed or tilt to install, and has improved using scope greatly without limits.
Claims (3)
1, a kind of water conservancy diversion safety check, structure includes valve body (1), valve seat (6), flap (4), guide sleeve (3), spring (5), spring (5) places between flap (4) and the guide sleeve (3), valve seat (6) and guide sleeve (3) are individually fixed on the valve body (1), it is characterized in that guide sleeve (3) has guide shell (2) structure, guide shell (2) outer surface and valve body (1) inner surface form diversion space, and flap (4) is a conical seal (contact) face with valve seat (6).
2, safety check according to claim 1 is characterized in that guide sleeve (3) is positioned at the middle part of guide shell (2), and flap (4) contacts spacing with guide shell (2) lower end surface.
3, safety check according to claim 1 and 2, the bus (A) that it is characterized in that valve seat (6) conical surface and valve body (1) are tangent at the circular arc line (B) of the inner surface that valve seat (6) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92209044 CN2153686Y (en) | 1992-04-30 | 1992-04-30 | Non-return valve with guided stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92209044 CN2153686Y (en) | 1992-04-30 | 1992-04-30 | Non-return valve with guided stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2153686Y true CN2153686Y (en) | 1994-01-19 |
Family
ID=33762612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92209044 Expired - Fee Related CN2153686Y (en) | 1992-04-30 | 1992-04-30 | Non-return valve with guided stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2153686Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335830C (en) * | 2003-09-25 | 2007-09-05 | 李桂林 | Inner sealed type cone non-return valve without hammer blow |
| CN101220877B (en) * | 2007-12-14 | 2010-10-13 | 曾祥炜 | Shuttle type reducing check valve |
| CN102032351A (en) * | 2009-09-24 | 2011-04-27 | 诺沃皮尼奥内有限公司 | Lift valve with flow gathering and shunt passage and method for reducing total pressure loss |
| WO2011079536A1 (en) * | 2009-12-31 | 2011-07-07 | 广东联塑科技实业有限公司 | Impeller type water-hammer proof and silent check valve |
| WO2011079537A1 (en) * | 2009-12-31 | 2011-07-07 | 广东联塑科技实业有限公司 | Water hammer proof and silent check valve |
| CN101737535B (en) * | 2009-12-31 | 2011-12-28 | 广东联塑科技实业有限公司 | Simple and durable mute check valve |
| CN101776165B (en) * | 2009-12-31 | 2012-11-14 | 广东联塑科技实业有限公司 | Waterproof hammer muting check valve with impeller type case |
| CN104121240A (en) * | 2014-08-07 | 2014-10-29 | 北京宇豪胜水利科技咨询有限公司 | Resistance and vibration reduction hydraulic ram pump |
| CN107314135A (en) * | 2016-04-26 | 2017-11-03 | 浙江三花制冷集团有限公司 | A kind of check valve |
| CN115076421A (en) * | 2021-03-12 | 2022-09-20 | 中核核电运行管理有限公司 | Handle over-and-under type check valve |
-
1992
- 1992-04-30 CN CN 92209044 patent/CN2153686Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335830C (en) * | 2003-09-25 | 2007-09-05 | 李桂林 | Inner sealed type cone non-return valve without hammer blow |
| CN101220877B (en) * | 2007-12-14 | 2010-10-13 | 曾祥炜 | Shuttle type reducing check valve |
| CN102032351A (en) * | 2009-09-24 | 2011-04-27 | 诺沃皮尼奥内有限公司 | Lift valve with flow gathering and shunt passage and method for reducing total pressure loss |
| CN101776165B (en) * | 2009-12-31 | 2012-11-14 | 广东联塑科技实业有限公司 | Waterproof hammer muting check valve with impeller type case |
| WO2011079537A1 (en) * | 2009-12-31 | 2011-07-07 | 广东联塑科技实业有限公司 | Water hammer proof and silent check valve |
| CN101737535B (en) * | 2009-12-31 | 2011-12-28 | 广东联塑科技实业有限公司 | Simple and durable mute check valve |
| WO2011079536A1 (en) * | 2009-12-31 | 2011-07-07 | 广东联塑科技实业有限公司 | Impeller type water-hammer proof and silent check valve |
| US8544493B2 (en) | 2009-12-31 | 2013-10-01 | Guangdong Liansu Technology Industrial Co., Ltd. | Water hammer proof and silent check valve |
| US9091356B2 (en) | 2009-12-31 | 2015-07-28 | Guangdong Liansu Technology Industrial Co., Ltd. | Impeller type water-hammer proof and silent check valve |
| CN104121240A (en) * | 2014-08-07 | 2014-10-29 | 北京宇豪胜水利科技咨询有限公司 | Resistance and vibration reduction hydraulic ram pump |
| CN104121240B (en) * | 2014-08-07 | 2016-08-24 | 北京宇豪胜水利科技咨询有限公司 | A kind of drag reduction vibration damping hydraulic ram |
| CN107314135A (en) * | 2016-04-26 | 2017-11-03 | 浙江三花制冷集团有限公司 | A kind of check valve |
| CN115076421A (en) * | 2021-03-12 | 2022-09-20 | 中核核电运行管理有限公司 | Handle over-and-under type check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |