CN102937200A - Direct-flow piston type adjustable pressure release valve and use method thereof - Google Patents
Direct-flow piston type adjustable pressure release valve and use method thereof Download PDFInfo
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- CN102937200A CN102937200A CN2012104669523A CN201210466952A CN102937200A CN 102937200 A CN102937200 A CN 102937200A CN 2012104669523 A CN2012104669523 A CN 2012104669523A CN 201210466952 A CN201210466952 A CN 201210466952A CN 102937200 A CN102937200 A CN 102937200A
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Abstract
The invention relates to a direct-flow piston type adjustable pressure release valve and a use method thereof. The direct-flow piston type adjustable pressure release valve comprises a main valve and a pilot valve, and is characterized in that an inner cavity of a main valve body is provided with a control chamber, the control chamber is provided with an opening facing a water inlet of the main valve, the opening is provided with a valve disk for sealing the water inlet of the main valve, the valve disk is connected with the opening in a matched manner and is connected with the control chamber through a spring, a control chamber water inlet small orifice is arranged in the middle of the valve disk so that the control chamber is communicated with the water inlet of the main valve, the control chamber is provided with a control chamber water outlet small orifice leading to the outer side of the main valve body, the control chamber water outlet small orifice is connected with a water inlet of the pilot valve, a water outlet of the pilot valve is connected with one end of a first flow channel, the other end of the first flow channel is communicated with the inner cavity of the main valve body, and the pressure value needed by the pilot valve is set by adjusting the compression amount of a pressure spring through an adjusting screw. The pressure release valve is capable of controlling water pressure in a self-operated manner without adding other devices and energy for pressure release, and is high in pressure control accuracy and reliable in pressure stabilization.
Description
Technical field
The present invention relates to the adjustable Decompression valves of a kind of direct current piston type and using method thereof.
Background technique
Decompression valves is according to the working pressure energy automatic on-off of system, generally is installed on protective system safety on the equipment of locking system or pipeline.When equipment or manifold pressure surpass the Decompression valves setting pressure, automatically open pressure release, guarantee that in e-quipment and pipe, pressure medium is under setting pressure, the protection e-quipment and pipe, prevent accident.
Major part or pressure fixing in existing Decompression valves, can't regulate the variation of its pressure, makes pressure valve become single, and the Decompression valves middle and upper part is divided into adjustable, and the mode of its adjusting also bothers, and pressure transient.
Summary of the invention
The object of the present invention is to provide the adjustable Decompression valves of a kind of direct current piston type and using method thereof; This Decompression valves can carry out the hydraulic pressure control of relying on oneself, and do not need additional other device and the energy to carry out pressure release work, and the pressure control accuracy is high, and voltage stabilizing is reliable.
A technological scheme of the present invention is: the adjustable Decompression valves of a kind of direct current piston type, comprise main valve and pilot valve, it is characterized in that: described valve body of main valve inner chamber is provided with control room, described control room has an opening towards main intake valve, described opening is provided with one for sealing main intake valve and coordinating the flap connected with opening, described flap links through a spring and control room, and described flap middle part offers control room and advances the throttling osculum, to realize control room, with main intake valve, communicates; Described control room is provided with the control room water outlet throttling osculum that leads to the valve body of main valve outside, described control room water outlet throttling osculum, with the pilot valve water intake, link, described pilot valve water outlet and first flow one end link, the described first flow the other end and valve body of main valve intracavity inter-connection.
Further, described pilot valve comprises pilot valve body, described pilot valve body inner chamber is provided with and connects the second runner that first flow and control room go out the throttling osculum, described the second runner both sides side is provided with a piston cavity, be provided with the piston matched with it in described piston cavity, two-piston links through a connecting rod, to realize the interlock of two-piston; Wherein the side end of a piston and pressure spring one end link, and the described pressure spring the other end links through spring seat and a screw, and described screw two ends lay respectively at exocoel in pilot valve body.
Further, described main intake valve is arranged with the valve seat matched with flap, and described valve seat is provided with the rubber seal matched with valve seat on main intake valve one sidewall.
Further, on described main valve, be provided with for showing the pressure gauge of valve body of main valve chamber pressure.
Further, be provided with O type circle on described flap periphery wall in order to realize the sealing of flap and control room inner circle wall.
Further, described piston perimembranous is provided with the O type circle matched with piston cavity.
Further, on described valve body of main valve, be provided with for connecting the Bolt Connection through hole of delivery (pipe) line.
Another technological scheme of the present invention is: the using method of the adjustable Decompression valves of a kind of direct current piston type is characterized in that: it uses step to be: the first step, by before valve body of main valve, water outlet and delivery (pipe) line link and guarantee its sealing; Second step, regulate the decrement of pressure spring and set the required force value of pilot valve by adjusting screw.
The invention has the advantages that: 1, set up and keep required import piping safety pressure, once superpressure, Decompression valves can be opened timely pressure release automatically; And return to the setting value of inlet pressure; 2, valve closing is steady, pressure surge is less; , but but 3 levels are installed also at right angle setting, mainly are arranged in all kinds of delivery (pipe) lines, prevent the supercharging suddenly of inlet pressure and destroy pipeline or equipment; After cutting out, pump can also reduce the impact of water hammer.
The accompanying drawing explanation
Fig. 1 is embodiment of the present invention pressure release view.
Fig. 2 is embodiment of the present invention normal working figure.
The accompanying drawing explanation:
5-main intake valve 6-flap 7-spring 8-control room, 1-main valve 2-pilot valve 3-valve body of main valve 4-control room is entered throttling osculum 9-control room and is gone out throttling osculum 10-first flow 11-pilot valve body 12-the second runner 13-piston cavity 14-piston 15-connecting rod 16-pressure spring 17-spring seat 18-screw 19-valve seat 20-rubber seal 21-pressure gauge 22-O type circle 23-Bolt Connection through hole.
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but the present invention is not limited to this.
With reference to legend, the adjustable Decompression valves of a kind of direct current piston type, comprise main valve 1 and pilot valve 2, it is characterized in that: described valve body of main valve 3 inner chambers are provided with control room 4, described control room has an opening towards main intake valve 5, and described opening is provided with one for sealing main intake valve and coordinating the flap 6 connected with opening, and described flap links with control room through a spring 7, described flap middle part offers control room water inlet throttling osculum 8, to realize control room, with main intake valve, communicates; Described control room is provided with the water outlet throttling osculum road, control room 9 that leads to the valve body of main valve outside, the little stomatodeum of described control room water outlet throttling and pilot valve water intake link, described pilot valve water outlet and first flow 10 1 ends link, the described first flow the other end and valve body of main valve intracavity inter-connection.
Described pilot valve comprises pilot valve body 11, described pilot valve body inner chamber is provided with and connects the second runner 12 that first flow and control room go out the throttling osculum, described the second runner both sides side is provided with a piston cavity 13, be provided with the piston 14 matched with it in described piston cavity, two-piston links through a connecting rod 15, to realize the interlock of two-piston; Wherein the side end of a piston and pressure spring 16 1 ends link, the described pressure spring the other end links through spring seat 17 and a screw 18, described screw two ends lay respectively at exocoel in pilot valve body, in this embodiment, screw is for regulating the pressure of pressure spring, can regulate like this pressure security value of pilot valve.
Described main intake valve is arranged with the valve seat 19 matched with flap, and described valve seat is provided with the rubber seal 20 matched with valve seat on main intake valve one sidewall.
Be provided with the pressure gauge 21 for showing the valve body of main valve chamber pressure on described main valve.
Be provided with O type circle 22 on described flap periphery wall in order to realize the sealing of flap and control room inner circle wall.
Described piston perimembranous is provided with the O type circle matched with piston cavity.
On described valve body of main valve, be provided with for connecting the Bolt Connection through hole 23 of delivery (pipe) line.
Direct current piston type proposed by the invention is adjustable Decompression valves uses step to be: the first step, by before valve body of main valve, water outlet and delivery (pipe) line link and guarantee its sealing; Second step, regulate the decrement of pressure spring and set the required force value of pilot valve by adjusting screw.
The present invention utilizes external pressure regulation pilot valve setting spring pressure to adjust aperture and sets outlet pressure, opens and closes flap by the turnover chock pressure difference start-stop device of relying on oneself, and carrys out stabilization of export pressure by the feedback effect in adapter system and main valve lumen control room.This valve utilizes pilot valve to carry out the hydraulic pressure control of relying on oneself, and does not need additional other device and the energy, and maintaining is easy, is subject to inlet pressure and flow effect little, and the pressure control accuracy is high, and voltage stabilizing is reliable.
Working principle of the present invention is: when pilot valve is adjusted into to the pressure release state, water enters control room by the main valve flap, when inlet pressure surpasses the safety value of pressure relief pilot-actuated valve setting, pilot valve is automatically opened under the inlet pressure effect, control room goes out the water outlet of throttling osculum and opens, put part water by pilot valve to outlet end, open control room and go out the throttling osculum, the force value that acts on the flap entrance point just is greater than the force value in control room, thereby the main valve flap is opened to the position of pressure release, main valve is opened, pipeline starts pressure release, until inlet pressure is while returning to secure setting, pilot valve goes out the throttling osculum by waterpower closing control chamber, the pressure in control room raises, force value is greater than the force value of flap entrance point, the main valve flap is shifted the position of closing fully onto, main valve is closed, maintain the upper inlet end pressure normal.
In the present invention, with the difference of other products, be: other product major parts are that cut-off adds diaphragm type, the comparing with in the form of piston of diaphragm type, and diaphragm pressure is unstable, and working life is short, and piston-type pressure is more steady, long service life.Direct current type is compared with cut-off type, and the cut-off type flow resistance is large, and loss of head is large, can only level install, and flow resistance is large; And the direct current type flow resistance is little, loss of head is little, but level install, but also at right angle setting.
The present invention utilizes the flow-rate ratio of importing and exporting the throttling osculum to carry out automatic switch valve than mineralization pressure is poor, must give prominence to control room water-in and water-out throttling osculum herein, because if be not osculum, according to valve aperture, vary in size, particularly the diameter of control room water inlet throttling osculum should be less than 5mm, water outlet throttling osculum obtains diameter should be less than 10mm, if the diameter of control room water-in and water-out throttling osculum exceeds this scope, produce pressure difference with regard to can not form throttling, the function of its recloser just can not realize, switch not valve.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. the adjustable Decompression valves of direct current piston type, comprise main valve and pilot valve, it is characterized in that: described valve body of main valve inner chamber is provided with control room, described control room has an opening towards main intake valve, described opening is provided with one for sealing main intake valve and coordinating the flap connected with opening, described flap links through a spring and control room, and described flap middle part offers control room water inlet throttling osculum, to realize control room, with main intake valve, communicates; Described control room is provided with the control room water outlet throttling osculum that leads to the valve body of main valve outside, described control room water outlet throttling osculum and pilot valve water intake link, described pilot valve water outlet and first flow one end link, the described first flow the other end and valve body of main valve intracavity inter-connection.
2. the adjustable Decompression valves of direct current piston type according to claim 1, it is characterized in that: described pilot valve comprises pilot valve body, described pilot valve body inner chamber is provided with and connects the second runner that first flow and control room go out the throttling osculum, described the second runner both sides side is provided with a piston cavity, be provided with the piston matched with it in described piston cavity, two-piston links through a connecting rod, to realize the interlock of two-piston; Wherein the side end of a piston and pressure spring one end link, and the described pressure spring the other end links through spring seat and a screw, and described screw two ends lay respectively at exocoel in pilot valve body.
3. the adjustable Decompression valves of direct current piston type according to claim 1, it is characterized in that: described main intake valve is provided with the valve seat matched with flap, and described valve seat is provided with the rubber seal matched with valve seat on main intake valve one sidewall.
4. the adjustable Decompression valves of direct current piston type according to claim 1, is characterized in that: on described main valve, be provided with for showing the pressure gauge of valve body of main valve chamber pressure.
5. the adjustable Decompression valves of direct current piston type according to claim 1, is characterized in that: be provided with O type circle on described flap periphery wall in order to realize the sealing of flap and control room inner circle wall.
6. the adjustable Decompression valves of direct current piston type according to claim 2, it is characterized in that: described piston perimembranous is provided with the O type circle matched with piston cavity.
7. the adjustable Decompression valves of direct current piston type according to claim 1, is characterized in that: on described valve body of main valve, be provided with for connecting the Bolt Connection through hole of delivery (pipe) line.
8. the using method of the adjustable Decompression valves of direct current piston type is characterized in that: it uses step to be: the first step, by before valve body of main valve, water outlet and delivery (pipe) line link and guarantee its sealing; Second step, regulate the decrement of pressure spring and set the required force value of pilot valve by adjusting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104669523A CN102937200A (en) | 2012-11-19 | 2012-11-19 | Direct-flow piston type adjustable pressure release valve and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104669523A CN102937200A (en) | 2012-11-19 | 2012-11-19 | Direct-flow piston type adjustable pressure release valve and use method thereof |
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| CN102937200A true CN102937200A (en) | 2013-02-20 |
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| CN2012104669523A Pending CN102937200A (en) | 2012-11-19 | 2012-11-19 | Direct-flow piston type adjustable pressure release valve and use method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322215A (en) * | 2013-06-21 | 2013-09-25 | 科勒(中国)投资有限公司 | Control valve |
| CN104806513A (en) * | 2015-05-10 | 2015-07-29 | 长沙新气象自动化技术有限公司 | High-circulating easily regulated pilot-operated type piston valve |
| CN105605263A (en) * | 2015-11-04 | 2016-05-25 | 中国人民解放军后勤工程学院 | Pilot control branch pipeline flow stabilization regulation apparatus |
| CN106594365A (en) * | 2016-03-30 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve applicable to low pressure working conditions and triggered to act through pressure bar destabilizing |
| CN106783420A (en) * | 2016-12-21 | 2017-05-31 | 河南平高电气股份有限公司 | A kind of breaker spring energy-storage type hydraulic actuating mechanism |
| CN110454596A (en) * | 2019-07-02 | 2019-11-15 | 合肥通用机械研究院有限公司 | A kind of piston type dynamic differential pressure balancing valve |
| CN110566188A (en) * | 2019-09-24 | 2019-12-13 | 天津大港油田圣达科技有限公司 | explosion-proof gas tracer injection device with adjustable pressure of 0-60Mpa |
| CN112610555A (en) * | 2020-12-26 | 2021-04-06 | 哈尔滨工业大学 | Quick-closing slow-opening type hydraulic priority valve |
| CN112747154A (en) * | 2019-10-30 | 2021-05-04 | 爱三工业株式会社 | Fluid control device |
| CN114110224A (en) * | 2021-12-07 | 2022-03-01 | 湖南省力宇燃气动力有限公司 | Explosion-proof valve and explosion-proof device |
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| CN85109329A (en) * | 1985-12-26 | 1987-08-12 | 庄凤龄 | Pilot operated compound relief valve |
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| JP2003004157A (en) * | 2001-06-25 | 2003-01-08 | Sumitomo Precision Prod Co Ltd | Balance piston type relief valve |
| CN1414273A (en) * | 2002-11-26 | 2003-04-30 | 大连理工大学 | Normal open guiding type safety valve combined with blasting sheet |
| CN1796850A (en) * | 2004-12-27 | 2006-07-05 | 上海上龙阀门厂 | Adjustable reducing valve |
| CN201687999U (en) * | 2010-05-28 | 2010-12-29 | 徐文娴 | Pilot operated safety valve |
| CN201851726U (en) * | 2010-11-09 | 2011-06-01 | 韩晓新 | Pilot overflow valve |
| CN202972062U (en) * | 2012-11-19 | 2013-06-05 | 福建高中压阀门科技有限公司 | Direct-flow piston type adjustable pressure relief valve |
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2012
- 2012-11-19 CN CN2012104669523A patent/CN102937200A/en active Pending
Patent Citations (8)
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| CN85109329A (en) * | 1985-12-26 | 1987-08-12 | 庄凤龄 | Pilot operated compound relief valve |
| DE4133424C2 (en) * | 1991-10-09 | 1995-11-16 | Halberstadt Maschbau | Full stroke safety valve with a spring-loaded main shut-off cone designed as a stepped piston and closing pressure control provided by means of a control valve |
| JP2003004157A (en) * | 2001-06-25 | 2003-01-08 | Sumitomo Precision Prod Co Ltd | Balance piston type relief valve |
| CN1414273A (en) * | 2002-11-26 | 2003-04-30 | 大连理工大学 | Normal open guiding type safety valve combined with blasting sheet |
| CN1796850A (en) * | 2004-12-27 | 2006-07-05 | 上海上龙阀门厂 | Adjustable reducing valve |
| CN201687999U (en) * | 2010-05-28 | 2010-12-29 | 徐文娴 | Pilot operated safety valve |
| CN201851726U (en) * | 2010-11-09 | 2011-06-01 | 韩晓新 | Pilot overflow valve |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322215A (en) * | 2013-06-21 | 2013-09-25 | 科勒(中国)投资有限公司 | Control valve |
| CN103322215B (en) * | 2013-06-21 | 2015-10-21 | 科勒(中国)投资有限公司 | Control valve |
| CN104806513A (en) * | 2015-05-10 | 2015-07-29 | 长沙新气象自动化技术有限公司 | High-circulating easily regulated pilot-operated type piston valve |
| CN105605263A (en) * | 2015-11-04 | 2016-05-25 | 中国人民解放军后勤工程学院 | Pilot control branch pipeline flow stabilization regulation apparatus |
| CN106594365A (en) * | 2016-03-30 | 2017-04-26 | 江苏瑞朗博机械设备有限公司 | Automatic valve applicable to low pressure working conditions and triggered to act through pressure bar destabilizing |
| CN106594365B (en) * | 2016-03-30 | 2017-12-15 | 江苏瑞朗博机械设备有限公司 | Suitable for the automatic valve by strut buckling trigger action of low pressure operating mode |
| CN106783420A (en) * | 2016-12-21 | 2017-05-31 | 河南平高电气股份有限公司 | A kind of breaker spring energy-storage type hydraulic actuating mechanism |
| CN110454596A (en) * | 2019-07-02 | 2019-11-15 | 合肥通用机械研究院有限公司 | A kind of piston type dynamic differential pressure balancing valve |
| CN110566188A (en) * | 2019-09-24 | 2019-12-13 | 天津大港油田圣达科技有限公司 | explosion-proof gas tracer injection device with adjustable pressure of 0-60Mpa |
| CN112747154A (en) * | 2019-10-30 | 2021-05-04 | 爱三工业株式会社 | Fluid control device |
| CN112610555A (en) * | 2020-12-26 | 2021-04-06 | 哈尔滨工业大学 | Quick-closing slow-opening type hydraulic priority valve |
| CN114110224A (en) * | 2021-12-07 | 2022-03-01 | 湖南省力宇燃气动力有限公司 | Explosion-proof valve and explosion-proof device |
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Application publication date: 20130220 |