CN103939649A - Self-operated stop valve - Google Patents
Self-operated stop valve Download PDFInfo
- Publication number
- CN103939649A CN103939649A CN201410148240.6A CN201410148240A CN103939649A CN 103939649 A CN103939649 A CN 103939649A CN 201410148240 A CN201410148240 A CN 201410148240A CN 103939649 A CN103939649 A CN 103939649A
- Authority
- CN
- China
- Prior art keywords
- valve
- control
- valve body
- outlet
- communicated
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
Abstract
The invention relates to a self-operated stop valve which comprises a valve body, a valve clack, a valve rod and a valve cover. A piston cylinder is arranged between the valve body and the valve cover, a spring is arranged between a piston upper end face and the valve cover, and a piston upper cavity and a piston lower cavity are communicated with a valve body inlet through a communicating pipe and a control valve. The control valve is composed of a control valve body and a control valve core, a control hole is formed in the control valve body, and a first outlet, a second outlet, a control valve inlet, a first pressure relief opening and a second pressure relief opening are formed in the control valve body. The control valve inlet is communicated with the valve body inlet through the communicating pipe, and the first outlet and the second outlet are communicated with the piston upper cavity and the piston lower cavity respectively. The control valve core is formed by manufacturing four control pistons on a control rod. The media at the valve body inlet are led into the piston upper cavity or the piston lower cavity though the control valve to achieve the on-off control of the stop valve, and the control valve inlet is switched to be communicated with a valve body inlet channel according to the flow direction of the media in a valve body channel. The self-operated stop valve has the function of cutting off a bi-directional flowing medium pipeline.
Description
Technical field
The invention belongs to valve field, particularly about a kind of stop valve.
Background technique
Stop valve is because of simple in structure, with low cost, and is widely used on the medium transport pipeline of all fields of national economy as control switch, and its structure generally comprises valve body, spool, valve rod, valve gap, driving mechanism.As the self-powering type stop valve that the patent No. is ZL201320518094.2, comprise valve body, valve gap, spool, solenoid valve, entrance sleeve assembly and discharge connection assembly, after valve gap and valve body are fixing, form a lumen; Spool is dumbbell-like shape, and spool is movably arranged on the epicoele that forms a sealing in lumen with lumen; The bottom surface of spool and the sealing surface of valve body form a sealing pair; Entrance sleeve assembly one end is connected with the inlet cavity of valve body, and the other end is connected with epicoele by solenoid valve; Discharge connection assembly one end is connected with the outlet cavity of valve body, and the other end is connected with epicoele by solenoid valve; The upper surface area of spool is greater than the bottom surface bearing area that spool contacts with inlet cavity.The structure that the entrance sleeve assembly of stop valve, discharge connection assembly and solenoid valve form, makes spool just can realize the keying of spool under medium self pressure-acting, and with respect to electronic, pneumatic stopping valve, it is simple in structure, cost is low.But this self-powering type stop valve is only applicable to the unidirectional medium pipeline of forward circulation, be not suitable for the bi-directional medium pipeline of medium reverse circulated.
Summary of the invention
The object of the invention is the shortcoming existing for prior art, a kind of self-powering type stop valve of the medium pipeline that is applicable to two-way circulate is provided.
Technological scheme of the present invention comprises valve body, flap, valve rod, valve gap, in the valve pocket of valve body, be shaped with valve seat, flap lower end surface is shaped with the sealing surface cooperatively interacting with valve seat, flap upper-end surface is fixedly connected with valve rod, one piston cylinder is installed between valve body and valve gap, and valve rod upper end is fixedly connected with piston through piston cylinder; Be mainly that a spring is installed between piston upper-end surface and valve gap, piston upper chamber is communicated with valve body import by connecting tube, control valve with piston cavity of resorption; Described control valve is comprised of control valve body and control spool, in control valve body, be shaped with control hole, on the control valve body of control hole one side, be shaped with the first outlet and the second outlet, on the control valve body of control hole opposite side, be shaped with control valve import and the first pressure relief opening, the second pressure relief opening; Described control valve import was communicated with valve body import by connecting tube, and the first outlet and the second outlet are communicated with piston upper chamber and piston cavity of resorption respectively; Control spool employing and on controlling rod, manufacture four control pistons formations, four control pistons coordinate with control hole motive sealing, between adjacent two control piston end faces, form annular control chamber, between four control pistons and control hole, form left annular control chamber, middle annular control chamber and right annular control chamber, control valve import is communicated with middle annular control chamber; When control spool moves on to left side, the first outlet is communicated with middle annular control chamber, and the second outlet and the second pressure relief opening are communicated with right annular control chamber simultaneously; When control spool moves on to right side, the second outlet is communicated with middle annular control chamber, and the first outlet and the first pressure relief opening are communicated with left annular control chamber simultaneously.
In above technological scheme, between control valve import and valve body inlet/outlet passage, install connecting tube respectively, on the connecting tube between control valve import and valve body inlet/outlet, three-way switch valve is installed.
In above technological scheme, between the first pressure relief opening and the second pressure relief opening and valve body inlet/outlet passage, install connecting tube respectively, on the connecting tube between the first pressure relief opening, the second pressure relief opening and valve body inlet/outlet, three-way valve is installed respectively.
Advantage of the present invention is, by control valve, valve body import medium is introduced to piston upper chamber or piston cavity of resorption, the open or close control of realization to stop valve, and according to the flow direction of medium in valve channel, control valve import is switched to valve body inlet passage and is communicated with, can be installed on the medium pipeline that two-way circulates and use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of control valve in Fig. 1 of the present invention.
Embodiment
Self-powering type stop valve as shown in Figure 1, comprise valve body 1, flap 2, valve rod 3, valve gap 6, in the valve pocket of valve body 1, be shaped with valve seat, flap 2 lower end surfaces are shaped with the sealing surface cooperatively interacting with valve seat, flap 2 upper-end surfaces are fixedly connected with valve rod 3, one piston cylinder 4 is installed between valve body 1 and valve gap 6, and valve rod 3 upper ends are fixedly connected with piston 5 through piston cylinder 4; One spring 7 is installed between piston 5 upper-end surfaces and valve gap 6, and piston upper chamber 9 is communicated with valve body 1 import by connecting tube, control valve 8 with piston cavity of resorption 10; Described control valve 8 is comprised of control valve body 8.1 and control spool 8.2, in control valve body 8.1, be shaped with control hole 8.3, on the control valve body 8.1 of control hole 8.3 1 sides, be shaped with the first outlet 8.4 and the second outlet 8.5, on the control valve body 8.1 of control hole 8.3 opposite sides, be shaped with control valve import 8.6 and the first pressure relief opening 8.7, the second pressure relief opening 8.8; Described control valve import 8.6 was communicated with valve body 1 import by connecting tube, first outlet the 8.4 and second outlet 8.5 is communicated with piston upper chamber 9 and piston cavity of resorption 10 respectively, i.e. the first outlet 8.4 is by being communicated with piston upper chamber 9 connecting tube, and the second outlet 8.5 is by being communicated with piston cavity of resorption 10 connecting tube; Control spool 8.2 employings and on controlling rod, manufacture four control pistons formations, four control pistons coordinate with control hole 8.3 motive sealings, between adjacent two control piston end faces, form annular control chamber, between four control pistons and control hole 8.3, form left annular control chamber 8.9, middle annular control chamber 8.10 and right annular control chamber 8.11, control valve import 8.6 is communicated with middle annular control chamber 8.10; When control spool moves on to left side, the first outlet 8.4 is communicated with middle annular control chamber 8.10, the first outlet 8.4 is communicated with control valve import 8.6, valve body 1 import medium is incorporated into piston upper chamber 9, and second outlet the 8.5 and second pressure relief opening 8.8 is communicated with right annular control chamber 8.11 simultaneously, pressure medium in piston cavity of resorption 10 is released by the second pressure relief opening 8.8, realize and close valve; When control spool moves on to right side, the second outlet 8.5 is communicated with middle annular control chamber 8.10, the second outlet 8.5 is communicated with control valve import 8.6, valve body 1 import medium is incorporated into piston cavity of resorption 10, and first outlet the 8.4 and first pressure relief opening 8.7 is communicated with left annular control chamber 8.9 simultaneously, valve is driven in realization, as shown in Figure 2.
Between control valve import 8.6 and valve body 1 inlet/outlet passage, install connecting tube respectively, on the connecting tube between control valve import 8.6 and valve body 1 inlet/outlet, three-way switch valve 11 is installed, by the switching of three-way switch valve 11, control valve import 8.6 is communicated with all the time with valve body 1 channel media import one end.
Between the first pressure relief opening 8.7 and the second pressure relief opening 8.8 and valve body 1 inlet/outlet passage, install connecting tube respectively, on connecting tube between the first pressure relief opening 8.7, the second pressure relief opening 8.8 and valve body 1 inlet/outlet, three-way valve is installed respectively, by the switching of three-way valve, the first pressure relief opening 8.7 and the second pressure relief opening 8.8 are communicated with valve body 1 outlet passage all the time.For nothing harm medium, the first pressure relief opening 8.7 and the second pressure relief opening 8.8 can directly lead to atmosphere.
Controlling moving left and right of spool 8.2 can manually-operable, also can electronicly control, pneumatic control or the control of surging, and can also adopt Electromagnetic Control.
Claims (3)
1. a self-powering type stop valve, comprise valve body (1), flap (2), valve rod (3), valve gap (6), in the valve pocket of valve body (1), be shaped with valve seat, flap (2) lower end surface is shaped with the sealing surface cooperatively interacting with valve seat, flap (2) upper-end surface is fixedly connected with valve rod (3), between valve body (1) and valve gap (6), a piston cylinder (4) is installed, valve rod (3) upper end is fixedly connected with piston (5) through piston cylinder (4); It is characterized in that, between piston (5) upper-end surface and valve gap (6), a spring (7) is installed, piston upper chamber (9) is communicated with valve body (1) import by connecting tube, control valve (8) with piston cavity of resorption (10); Described control valve (8) is comprised of control valve body (8.1) and control spool (8.2), in control valve body (8.1), be shaped with control hole (8.3), on the control valve body (8.1) of control hole (8.3) one sides, be shaped with the first outlet (8.4) and the second outlet (8.5), on the control valve body (8.1) of control hole (8.3) opposite side, be shaped with control valve import (8.6) and the first pressure relief opening (8.7), the second pressure relief opening (8.8); Described control valve import (8.6) was communicated with valve body (1) import by connecting tube, and the first outlet (8.4) and the second outlet (8.5) are communicated with piston upper chamber (9) and piston cavity of resorption (10) respectively; Control spool (8.2) employing and on controlling rod, manufacture four control pistons formations, four control pistons coordinate with control hole (8.3) motive sealing, between adjacent two control piston end faces, form annular control chamber, between four control pistons and control hole (8.3), form left annular control chamber (8.9), middle annular control chamber (8.10) and right annular control chamber (8.11), control valve import (8.6) is communicated with middle annular control chamber (8.10); When control spool moves on to left side, the first outlet (8.4) is communicated with middle annular control chamber (8.10), and the second outlet (8.5) and the second pressure relief opening (8.8) are communicated with right annular control chamber (8.11) simultaneously; When control spool moves on to right side, the second outlet (8.5) is communicated with middle annular control chamber (8.10), and the first outlet (8.4) and the first pressure relief opening 8.7 are communicated with left annular control chamber 8.9 simultaneously.
2. self-powering type stop valve according to claim 1, it is characterized in that installing connecting tube respectively between control valve import (8.6) and valve body (1) inlet/outlet passage the upper three-way switch valve (11) of installing of connecting tube between control valve import (8.6) and valve body (1) inlet/outlet.
3. self-powering type stop valve according to claim 1, it is characterized in that installing connecting tube respectively between the first pressure relief opening (8.7) and the second pressure relief opening (8.8) and valve body (1) inlet/outlet passage, on the connecting tube between the first pressure relief opening (8.7), the second pressure relief opening (8.8) and valve body (1) inlet/outlet, three-way valve is installed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148240.6A CN103939649B (en) | 2014-04-03 | 2014-04-03 | Self-operated type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148240.6A CN103939649B (en) | 2014-04-03 | 2014-04-03 | Self-operated type stop valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103939649A true CN103939649A (en) | 2014-07-23 |
| CN103939649B CN103939649B (en) | 2016-06-22 |
Family
ID=51187446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410148240.6A Active CN103939649B (en) | 2014-04-03 | 2014-04-03 | Self-operated type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939649B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879543A (en) * | 2015-06-08 | 2015-09-02 | 德阳正光机电设备有限公司 | Automatic-control constant-pressure throttling valve |
| CN106051171A (en) * | 2016-06-08 | 2016-10-26 | 中国船舶重工集团公司第七二五研究所 | Pressure self-balanced type stop check valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3795255A (en) * | 1972-01-10 | 1974-03-05 | Parker Hannifin Corp | Load control and holding valve |
| CN1214428A (en) * | 1997-10-13 | 1999-04-21 | 赵文轩 | Leakless safety valve |
| CN101105238A (en) * | 2007-08-09 | 2008-01-16 | 山东大学 | High volume gas pressure regulating valve |
| CN201330854Y (en) * | 2009-01-08 | 2009-10-21 | 中国船舶重工集团公司第七�三研究所 | Quick-opening valve with pneumatic drive and electro-explosive drive |
| CN102011869A (en) * | 2010-11-30 | 2011-04-13 | 陈建君 | Hydraulic automatic stop valve |
| CN202733099U (en) * | 2012-06-27 | 2013-02-13 | 正丰阀门集团有限公司 | Self-operated flow control valve capable of automatically regulating pressure difference |
| CN203442264U (en) * | 2013-08-23 | 2014-02-19 | 大英县大科机械设备制造有限公司 | Self-operated check valve |
| CN203770781U (en) * | 2014-04-03 | 2014-08-13 | 浙江方众阀门有限公司 | Self-powered check valve |
-
2014
- 2014-04-03 CN CN201410148240.6A patent/CN103939649B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3795255A (en) * | 1972-01-10 | 1974-03-05 | Parker Hannifin Corp | Load control and holding valve |
| CN1214428A (en) * | 1997-10-13 | 1999-04-21 | 赵文轩 | Leakless safety valve |
| CN101105238A (en) * | 2007-08-09 | 2008-01-16 | 山东大学 | High volume gas pressure regulating valve |
| CN201330854Y (en) * | 2009-01-08 | 2009-10-21 | 中国船舶重工集团公司第七�三研究所 | Quick-opening valve with pneumatic drive and electro-explosive drive |
| CN102011869A (en) * | 2010-11-30 | 2011-04-13 | 陈建君 | Hydraulic automatic stop valve |
| CN202733099U (en) * | 2012-06-27 | 2013-02-13 | 正丰阀门集团有限公司 | Self-operated flow control valve capable of automatically regulating pressure difference |
| CN203442264U (en) * | 2013-08-23 | 2014-02-19 | 大英县大科机械设备制造有限公司 | Self-operated check valve |
| CN203770781U (en) * | 2014-04-03 | 2014-08-13 | 浙江方众阀门有限公司 | Self-powered check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879543A (en) * | 2015-06-08 | 2015-09-02 | 德阳正光机电设备有限公司 | Automatic-control constant-pressure throttling valve |
| CN106051171A (en) * | 2016-06-08 | 2016-10-26 | 中国船舶重工集团公司第七二五研究所 | Pressure self-balanced type stop check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103939649B (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203770781U (en) | Self-powered check valve | |
| CN101551026A (en) | Direct-acting type two-position three-way solenoid valve | |
| CN206329765U (en) | A kind of two-position-five-way solenoid valve | |
| CN103939649A (en) | Self-operated stop valve | |
| CN106286892B (en) | Three-way magnetic valve | |
| CN103697197B (en) | The two-way intercommunication two-position two-way solenoid valve of inner guide | |
| CN210770422U (en) | Low-interference high-speed sliding type reversing valve | |
| CN105065357B (en) | A kind of electro-hydraulic reversing valve | |
| CN106678424A (en) | Pneumatic electromagnetic valve and pneumatic electromagnetic valve group | |
| CN206608597U (en) | Air-operated solenoid valve and air-powered electromagnetic valve group | |
| CN101551021A (en) | Direct-acting type two-way solenoid valve | |
| CN201173298Y (en) | Straight moving type double-way electromagnetic valve | |
| CN105422913A (en) | Two-position and five-way solenoid valve | |
| CN105090559A (en) | Cut-off type two-position five-way electromagnetic valve | |
| CN205244568U (en) | Single valve core solenoid valve | |
| CN204239816U (en) | The four-way change-over valve of double-shaft seal sealing | |
| CN103047211B (en) | Two-position four-way solenoid globe reversing valve | |
| CN103727266B (en) | Test electromagnetic valve | |
| CN203836278U (en) | Automatic reverse differential pressure drive valve | |
| CN201916267U (en) | Bonnet projection type hydraulic cartridge valve | |
| CN202531906U (en) | Two-position five-way valve | |
| CN205226465U (en) | Pipeline switching -over valve | |
| KR20120079956A (en) | Double poppet solenoid valve apparatus | |
| CN205244487U (en) | Bivalve core solenoid valve | |
| CN203162226U (en) | Sliding block setover structure for solenoid four-way reversing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |