CN203348655U - Detonation tube shutoff valve - Google Patents
Detonation tube shutoff valve Download PDFInfo
- Publication number
- CN203348655U CN203348655U CN 201320426493 CN201320426493U CN203348655U CN 203348655 U CN203348655 U CN 203348655U CN 201320426493 CN201320426493 CN 201320426493 CN 201320426493 U CN201320426493 U CN 201320426493U CN 203348655 U CN203348655 U CN 203348655U
- Authority
- CN
- China
- Prior art keywords
- valve
- control chamber
- diaphragm piston
- spring
- booster
- 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
Links
Images
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
A detonation tube shutoff valve comprises a valve body arranged on a tube body and communicated with the inside of the tube body and further comprises a control cavity, a valve shaft, a first elastic part, a diaphragm piston and a valve disc, wherein the first elastic part, the diaphragm piston and the valve disc are sequentially arranged on the valve shaft, the control cavity is connected with the valve body, the valve shaft penetrates the control cavity to enter the valve body, the diaphragm piston is arranged in the control cavity, and the control cavity is in rigid connection with the diaphragm piston. The control cavity is divided into an upper chamber and a lower chamber which are independent, the valve disc is arranged in the valve body, the lower chamber is communicated with the tube body through a lower cavity through tube, the first elastic part can drive the valve shaft to move along the central line after deforming due to stress, and the valve shaft can enable the diaphragm piston to deform in the control cavity, change the size of the upper chamber and the lower chamber through movement and meanwhile drive the valve disc to move in the valve body and the tube body. The detonation tube shutoff valve has the advantages of being capable of adapting to normal change of pressure in a pipeline and being installed at any angle.
Description
Technical field
The utility model relates to a kind of shutoff valve, particularly a kind of booster shutoff valve.
Background technique
A large amount of fluid leakages that the pressure conduit booster causes after occurring cause larger loss will to people's along the line productive life.Rely on the booster shutoff valve self controlled can quick acting to complete shut-down or certain aperture, the fluid of the revealing section consequence caused that leaks is reduced to minimum influence, the quadratic loss that the minimizing accident causes, thereby improve Security and the Economy of pipe network.
The booster shutoff valve is after the pressure conduit booster, can quick detection and block a kind of device that fluid is carried, be applicable to the multiple water supply lines such as town water supply engineering, industrial water supply engineering.The booster shutoff valve that waterpower is controlled do not need electrical control, and only rely on the features such as pressure to pipeline before and after valve, flow velocity as Rule of judgment, and realize valve event with pipeline self pressure, be applicable to booster impact large, need unmanned, occasion that automaticity is higher.
Utility model patent: 200510022041.1, self-closing valve for tube bursting, disclose a kind of valve that can block fast excessive flow velocity.When pipeline flow reaches certain value and obtains, the gravity that the fluid impulse force makes valve plate overcome counterweight is closed runner, and after closing, because inflow direction pressure increases gradually, the suffered power of valve plate further increases, until complete shut-down.Its shortcoming is, 1. because relying on gravity, counterweight plays a role, and the necessary horizontal arrangement of valve; 2. because counterweight is installed on inside, be difficult for realizing the size adjustment to required control flow.
Summary of the invention
The utility model provides a kind of booster shutoff valve that can adapt to the manifold pressure normal variation, can adopt arbitrarily angled installation.
For solving the problems of the technologies described above, a kind of booster shutoff valve, comprise the valve body be located on body with the body internal communication, the booster shutoff valve also comprises control chamber, valve shaft, reach and be located at successively the first elastic member on described valve shaft, diaphragm piston, valve disc, control chamber and valve body join, valve shaft enters in valve body through control chamber, diaphragm piston is located in control chamber, control chamber and diaphragm piston are rigidly connected, control chamber is divided into to independently upper chamber, lower chambers, valve disc is located in valve body, lower chambers is communicated with body by the cavity of resorption siphunculus, the first elastic member is stressed can drive valve shaft along its center line movement after deforming, valve shaft motion can make diaphragm piston deform in control chamber to change the size of upper chamber and lower chambers, can drive valve disc at valve body and body internal motion simultaneously.
Further, the booster shutoff valve also comprises the equalizing pipe be communicated with body, and equalizing pipe one end is connected the upstream of external valve body and body joint with body, and the other end and body joint are in the downstream of valve body and body joint, and equalizing pipe is provided with valve.
Further, the cavity of resorption siphunculus is provided with throttle valve.
All right, the first elastic member comprises spring, reaches the restricting means of spring, and described spring housing is on valve shaft, and limit stoper is limited in spring in certain interval of valve shaft, and when interval diminishes, spring stress deforms.
All right, the angle of body center line and valve body center line is greater than 0 degree and is less than 90 degree.
All right, be provided with pedestal in body, valve disc is placed on pedestal and can blocks flowing of the interior liquid of body.
All right, upper chamber is provided with and communicates with ambient air epicoele connecting tube.
The utility model has the advantage of, lower chambers is communicated with body by the cavity of resorption siphunculus, lower chambers is identical with the fluid pressure in body, pressure variation in body also can be reacted to rapidly in lower chambers, when the body internal pressure is normal, when equaling to install, gives the pressure of lower chambers the pretightening force of the first elastic member and closing of shaft seal frictional force, pretightening force deforms the first elastic member, diaphragm piston does not deform, when the body internal pressure descends, the pressure of lower chambers also can and then descend, the first elastic member can make diaphragm piston deform, upper chamber's volume increases, the lower chambers smaller volume, valve disc by valve inner to the body internal motion, when the body internal pressure rises, the pressure of lower chambers also can and then rise, the first elastic member can make diaphragm piston deform, upper chamber's smaller volume, it is large that the lower chambers volume becomes, spring further is out of shape, increase the pretightening force of spring, valve disc by body inside to valve inner to the motion or at valve inner, move, the release of the first elastic member pretightening force is a descending process, and shaft seal 9 frictional force are fixed values, pressure in body is while fluctuating in certain amplitude, the first elastic member can first discharge certain pretightening force, and then store pretightening force, the regular moving fortune of the first elastic member, and can not make the liquid in body stop, in body, normal pressure just changes and can not start the booster shutoff valve, only when body internal pressure continuous decrease surpasses certain value, under effect of inertia, the first elastic member pretightening force just can discharge fully, make valve disc by valve inner to the body internal motion, block body fully, such reliable in structure, can also adapt to normal pressure in body changes, during installation, needing only just can be by arbitrarily angled installation according to the pretightening force of angular adjustment the first elastic member, while is for the body of different pressures, as long as just adjust the pretightening force of the first elastic member.
The booster shutoff valve also comprises the equalizing pipe be communicated with body, equalizing pipe one end is connected the upstream of external valve body and body joint with body, the other end and body joint are in the downstream of valve body and body joint, equalizing pipe is provided with valve, after the booster place fixes, open the valve body of equalizing pipe, in body, current progressively recover normal, it is large that the pressure of bottom chamber also progressively becomes, can deform for the diaphragm piston that makes become, it is large that lower chambers slowly becomes, upper chamber slowly diminishes, diaphragm piston deforms and can make the first elastic member deform, valve disc is moved to valve inner by body inside, when the body internal pressure reaches normal value, valve disc enters in valve body, in body, liquid communication is smooth, can realize recycling of booster shutoff valve like this.
The cavity of resorption siphunculus is provided with throttle valve, by the flow velocity to epicoele connecting tube, is controlled, and reduces the drain discharge that advances of control chamber lower chambers, thereby reduces the speed that valve disc is closed, and plays retard time (for example preventing misoperation) and reduces the effect of impact of water hammer.
The angle of body center line and valve body center line is greater than 0 degree and is less than 90 degree; Be provided with pedestal in body, valve disc is placed on pedestal and can blocks flowing of the interior liquid of body, the better effects if of damming of booster shutoff valve.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the utility model the first example structure schematic diagram.
Fig. 2 is the utility model the second example structure schematic diagram.
Fig. 3 is the utility model the 3rd example structure schematic diagram.
Embodiment
In Fig. 1, a kind of booster shutoff valve, comprise the valve body 1 be located on body 15 with body 15 internal communication, the booster shutoff valve also comprises control chamber 2, valve shaft 9, reach and be located at successively the first elastic member on described valve shaft 9, diaphragm piston 10, valve disc 8, described control chamber 2 joins with valve body 1, described valve shaft 9 enters in valve body 1 through control chamber 2, described diaphragm piston 10 is located in control chamber 2, control chamber 2 is rigidly connected with diaphragm piston 10, control chamber 2 is divided into to independently upper chamber, lower chambers, valve disc 8 is located in valve body 1, lower chambers is communicated with body 1 by cavity of resorption siphunculus 11, the first elastic member comprises spring 6, screw mandrel 3, pressing plate 4, baffle plate 5, spring 6, adjusting nut 7, described spring 6 is enclosed within on valve shaft 9, baffle plate 5 is arranged on valve shaft 9, it is outer that pressing plate 4 is fixed on control chamber 2 by screw mandrel 3 and adjusting nut 7, valve shaft 9 one ends are through pressing plate 4, spring 6 is located between pressing plate 4 and baffle plate 5, spring 6 is stressed can drive valve shaft 9 along its center line movement after deforming, be provided with pedestal in body 15, valve disc 8 is placed on pedestal and can blocks flowing of body 15 interior liquid, angle 89 degree of body 15 center lines and valve body 1 center line, valve shaft 9 motion can make diaphragm piston 10 deform in control chamber 2 to change the size of upper chamber and lower chambers, and the while can drive valve disc 8 at valve body 1 and body 15 internal motions.
In Fig. 2, a kind of booster shutoff valve, comprise the valve body 1 be located on body 15 with body 15 internal communication, the booster shutoff valve also comprises control chamber 2, valve shaft 9, reach and be located at successively the first elastic member on described valve shaft 9, diaphragm piston 10, valve disc 8, described control chamber 2 joins with valve body 1, described valve shaft 9 enters in valve body 1 through control chamber 2, described diaphragm piston 10 is located in control chamber 2, control chamber 2 is rigidly connected with diaphragm piston 10, control chamber 2 is divided into to independently upper chamber, lower chambers, valve disc 8 is located in valve body 1, lower chambers is communicated with body 1 by cavity of resorption siphunculus 11, cavity of resorption siphunculus 11 is provided with throttle valve 12, the first elastic member comprises spring 6, screw mandrel 3, pressing plate 4, baffle plate 5, spring 6, adjusting nut 7, described spring 6 is enclosed within on valve shaft 9, baffle plate 5 is arranged on valve shaft 9, it is outer that pressing plate 4 is fixed on control chamber 2 by screw mandrel 3 and adjusting nut 7, valve shaft 9 one ends are through pressing plate 4, spring 6 is located between pressing plate 4 and baffle plate 5, spring 6 is stressed can drive valve shaft 9 along its center line movement after deforming, be provided with pedestal in body 15, valve disc 8 is placed on pedestal and can blocks flowing of body 15 interior liquid, angle 45 degree of body 15 center lines and valve body 1 center line, valve shaft 9 motion can make diaphragm piston 10 deform in control chamber 2 to change the size of upper chamber and lower chambers, and the while can drive valve disc 8 at valve body 1 and body 15 internal motions.
As shown in Figure 3, a kind of booster shutoff valve, comprise the valve body 1 be located on body 15 with body 15 internal communication, the booster shutoff valve also comprises control chamber 2, valve shaft 9, equalizing pipe 14, and is located at successively the first elastic member, diaphragm piston 10, the valve disc 8 on described valve shaft 9, equalizing pipe 14 1 ends are connected the upstream of external valve body 1 and body 15 joints with body 15, the other end and body 15 joints are the downstream with body 15 joints at valve body 1, and equalizing pipe 14 is provided with valve 16, described control chamber 2 joins with valve body 1, described valve shaft 9 enters in valve body 1 through control chamber 2, described diaphragm piston 10 is located in control chamber 2, control chamber 2 is rigidly connected with diaphragm piston 10, control chamber 2 is divided into to independently upper chamber, lower chambers, valve disc 8 is located in valve body 1, lower chambers is communicated with body 1 by cavity of resorption siphunculus 11, cavity of resorption siphunculus 11 is provided with throttle valve 12, the first elastic member comprises spring 6, screw mandrel 3, pressing plate 4, baffle plate 5, spring 6, adjusting nut 7, described spring 6 is enclosed within on valve shaft 9, baffle plate 5 is arranged on valve shaft 9, it is outer that pressing plate 4 is fixed on control chamber 2 by screw mandrel 3 and adjusting nut 7, valve shaft 9 one ends are through pressing plate 4, spring 6 is located between pressing plate 4 and baffle plate 5, spring 6 is stressed can drive valve shaft 9 along its center line movement after deforming, be provided with pedestal in body 15, valve disc 8 is placed on pedestal and can blocks flowing of body 15 interior liquid, angle 45 degree of body 15 center lines and valve body 1 center line, , valve shaft 9 motion can make diaphragm piston 10 deform in control chamber 2 to change the size of upper chamber and lower chambers, and the while can drive valve disc 8 at valve body 1 and body 15 internal motions.
Working principle: can adjust the pretightening force of spring 6 by adjusting nut 7, play body 1 pressure set points when adjusting the booster shutoff valve and closing.
For realizing above-mentioned working principle, between each parameter, relation is:
During normal operation: P2A>K1+f
During valve closing: P1A<K2-f
Wherein: spring 6 pretightening forces---K1 during booster shutoff valve standard-sized sheet, spring 6 pretightening forces---K2 during booster shutoff valve complete shut-down, diaphragm piston 10 water cross sections are long-pending---A, body 15 pressure---P1 when the booster shutoff valve starts to cut out, pipeline pressure when the booster shutoff valve starts to open---P2, shaft seal frictional force---f.
Therefore, under steady state, pipeline pressure interval during valve closing is that (0, P1), pipeline pressure interval during unlatching is (P2, ∞), and valve closing when pipeline pressure is less than P1, open while being greater than P2.
When pipeline normal water supply or other liquid, body 15 pressure of valve body 1 front and back and the pressure of control chamber 2 lower chambers equate, the axial force that diaphragm piston produces is greater than spring 6 pretightening forces and shaft seal frictional force sum, and valve disc 8 is in valve body 1, and body 15 is in full-gear;
After booster occurs, booster shutoff valve front and back and control chamber 2 lower chambers pressure sharply descend, when spring 6 pretightening forces are greater than diaphragm piston 19 axial forces and shaft seal frictional force sum, and valve disc 8 and the downward setting in motion of valve rod 9.In the process of closing, due to making a concerted effort of the suffered fluid impact power of valve disc 8 and spring 6 pressure, valve disc 8 continues motion, until complete shut-down.
After pipe explosion accident is disposed, open valve 15, carry out water-filling by 14 pairs of rear pipelines of valve body 1 of equalizing pipe, after valve body 1, pipe pressure recovers gradually, control chamber 2 lower chambers pressure increase, and promote diaphragm piston 10, valve shaft 9 and valve disc 8 and move upward, until standard-sized sheet, last throttle down 15, body 15 recovers normal working.
Can be controlled the flow velocity of epicoele connecting tube 13 by regulating throttle valve 12, be reduced the drain discharge that advances of control chamber 2 lower chambers, thereby be reduced the speed that valve disc 8 is closed, play retard time (for example preventing misoperation) and reduce the effect of impact of water hammer.
Structure in this example is only for for the illustrating and explaining of claim, so that popular reading comprehension should not be considered as the restriction for claim, protection domain of the present utility model should be as the criterion with scope and the legal equivalent feature of claim record.
Claims (7)
1. a booster shutoff valve, comprise and be located at body (15) above and the valve body (1) of body (15) internal communication, it is characterized in that: described booster shutoff valve also comprises control chamber (2), valve shaft (9), reach and be located at successively the first elastic member on described valve shaft (9), diaphragm piston (10), valve disc (8), described control chamber (2) joins with valve body (1), described valve shaft (9) enters in valve body (1) through control chamber (2), described diaphragm piston (10) is located in control chamber (2), control chamber (2) is rigidly connected with diaphragm piston (10), control chamber (2) is divided into to independently upper chamber, lower chambers, valve disc (8) is located in valve body (1), lower chambers is communicated with body (1) by cavity of resorption siphunculus (11), the first elastic member is stressed can drive valve shaft (9) along its center line movement after deforming, valve shaft (9) motion can make diaphragm piston (10) deform in control chamber (2) to change the size of upper chamber and lower chambers, and the while can drive valve disc (8) at valve body (1) and body (15) internal motion.
2. a kind of booster shutoff valve according to claim 1, it is characterized in that: described booster shutoff valve also comprises the equalizing pipe (14) be communicated with body (15), equalizing pipe (14) one ends are connected the upstream of external valve body (1) and body (15) joint with body (15), the other end and body (15) joint is the downstream with body (15) joint at valve body (1), and equalizing pipe is provided with valve (16).
3. a kind of booster shutoff valve according to claim 1, it is characterized in that: described cavity of resorption siphunculus (11) is provided with throttle valve (12).
4. according to claim 1 or 2 or 3 described a kind of booster shutoff valves, it is characterized in that: described the first elastic member comprises spring (6), reaches the restricting means of spring (6), described spring (6) is enclosed within on valve shaft (9), limit stoper is limited in spring in certain interval of valve shaft (9), stressed the deforming of spring when interval diminishes (6).
5. according to claim 1 or 2 or 3 described a kind of booster shutoff valves, it is characterized in that: the angle of described body (15) center line and valve body (1) center line is greater than 0 degree and is less than 90 degree.
6. according to claim 1 or 2 or 3 described a kind of booster shutoff valves, it is characterized in that: be provided with pedestal (16) in described body (15), valve disc (8) is placed on pedestal (16) and can blocks flowing of the interior liquid of body (15).
7. according to claim 1 or 2 or 3 described a kind of booster shutoff valves, it is characterized in that: described upper chamber is provided with and communicates with ambient air epicoele connecting tube (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320426493 CN203348655U (en) | 2013-07-18 | 2013-07-18 | Detonation tube shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320426493 CN203348655U (en) | 2013-07-18 | 2013-07-18 | Detonation tube shutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348655U true CN203348655U (en) | 2013-12-18 |
Family
ID=49748558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320426493 Expired - Fee Related CN203348655U (en) | 2013-07-18 | 2013-07-18 | Detonation tube shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348655U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353001A (en) * | 2013-07-18 | 2013-10-16 | 中国长江三峡集团公司 | Pipe bursting shutoff valve |
| CN111656068A (en) * | 2018-02-01 | 2020-09-11 | 积水化学工业株式会社 | Diaphragm valve |
-
2013
- 2013-07-18 CN CN 201320426493 patent/CN203348655U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353001A (en) * | 2013-07-18 | 2013-10-16 | 中国长江三峡集团公司 | Pipe bursting shutoff valve |
| CN103353001B (en) * | 2013-07-18 | 2016-08-10 | 中国长江三峡集团公司 | Booster shutoff valve |
| CN111656068A (en) * | 2018-02-01 | 2020-09-11 | 积水化学工业株式会社 | Diaphragm valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203348655U (en) | Detonation tube shutoff valve | |
| CN108331948B (en) | Pilot-operated type pipe explosion shutoff valve and control method | |
| CN203223605U (en) | Diaphragm pilot valve capable of detecting pressure and flow rate | |
| CN103353001A (en) | Pipe bursting shutoff valve | |
| CN205226505U (en) | Adjustable relief pressure valve of direct current sleeve piston bivalve lamella | |
| CN203686277U (en) | Safety relief valve | |
| CN204628880U (en) | A kind of magnetic control for low-pressure gas pipeline is explosion-proof to be flexible coupling | |
| CN103836019A (en) | Fast-charging hydraulic shift valve | |
| CN107859766B (en) | Pipe explosion closing valve | |
| CN208041249U (en) | Pilot-operated type booster shutoff valve | |
| CN205013781U (en) | Voltage regulator of anti dirty fast reaction | |
| CN104005451A (en) | Pre-opening pressure relief device | |
| CN210890264U (en) | Pipeline constant pressure device | |
| CN203585471U (en) | Direct flow piston type guide adjustable reducing valve | |
| CN112178260A (en) | Governing valve control system that opens under high static pressure difference state | |
| CN202766271U (en) | Double-butterfly-valve quantitative filling device | |
| CN204692671U (en) | Industrial refrigeration right-angle type safety check | |
| CN202118305U (en) | Pilot valve for waterpower valve | |
| CN202100555U (en) | Breakage-proof safe hydraulic cylinder | |
| CN113217643A (en) | Differential pressure type pipe explosion safety valve and method | |
| CN110043703A (en) | A kind of design method of piston type guide surge reliever | |
| CN212004413U (en) | Check valve with flow control function | |
| CN220729345U (en) | Large-caliber small-flow gas flow measuring device | |
| CN202560531U (en) | Valve body separation non-middle-cover type multifunctional water pump control valve | |
| CN214425692U (en) | Intelligent turbulent flow valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20170718 |