CN204267810U - A kind of diaphragm water hammer-resistant preaction valve - Google Patents
A kind of diaphragm water hammer-resistant preaction valve Download PDFInfo
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- CN204267810U CN204267810U CN201420305298.2U CN201420305298U CN204267810U CN 204267810 U CN204267810 U CN 204267810U CN 201420305298 U CN201420305298 U CN 201420305298U CN 204267810 U CN204267810 U CN 204267810U
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Abstract
The utility model discloses a kind of diaphragm water hammer-resistant preaction valve, comprise valve body, valve member and induction control unit, wherein, the middle part of above-mentioned valve body is cavity structure, this cavity comprises horizontal fluid passage and the fluid passage of longitudinal direction, and the inwall of valve body protrudes and forms valve port inside the fluid passage of transverse direction; Above-mentioned valve member intert be arranged on valve body longitudinal direction fluid passage in, the lower end of valve member is chimeric with above-mentioned valve port, and fluid flows out from the fluid passage of valve body transverse direction, valve member by chimeric valve port to bear pressure, or by away from valve port with pressure release; Above-mentioned induction control unit is arranged on valve inner and outside thereof, and induction control unit induction valve body internal pressure is so that control valve assembly.The utility model structure simple designs is ingenious, Be very effective, and automaticity is high.
Description
Technical field
The utility model relates to pipeline control apparatus, refers in particular to a kind of diaphragm water hammer-resistant preaction valve.
Background technique
Water hammer effect it refer to feed water pump start and stop time, water impact pipeline, the serious water attack of one of generation.Due to inner at water pipe, inner tube wall is smooth, and water flow freely.When the valve opened is closed suddenly or feed water pump stopping, current are to valve and tube wall, and mainly valve or pump can produce a pressure.Because tube wall is smooth, follow-up current are under the effect of inertia, and waterpower reaches rapidly maximum, and produces destruction, " water hammer effect " in the middle of Here it is hydraulics, namely positive water hammer.On the contrary, the valve of closedown, throwing open or after feed water pump startup, also can producing water hammer, is negative water hammer.
The instant pressure produced by water hammer can reach tens times hundreds of times even of Normal operating pressure in pipeline.This significantly fluctuation of pressure, can cause pipe-line system judder, noise, and may destroy Valve joint.Very large destruction is had to pipe-line system.Water hammer effect has great destructiveness: pressure is too high, will cause breaking of pipe, otherwise the too low collapsing that can cause again pipe of pressure, also can damage valve and fixed block.
Therefore in order to prevent water hammer effect, market creates a kind of water hammer-resistant valve, but conventional waterproof hammer valve complicated operation, and water hammer-resistant effect is not remarkable, and the low modern industry that is not suitable with of automaticity is produced.
Model utility content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, provides a kind of design ingenious, Be very effective, the diaphragm water hammer-resistant preaction valve that automaticity is high.
The technological scheme that the utility model is taked is as follows: a kind of diaphragm water hammer-resistant preaction valve, comprise valve body, valve member and induction control unit, wherein, the middle part of above-mentioned valve body is cavity structure, this cavity comprises horizontal fluid passage and the fluid passage of longitudinal direction, and the inwall of valve body protrudes and forms valve port inside the fluid passage of transverse direction; Above-mentioned valve member intert be arranged on valve body longitudinal direction fluid passage in, the lower end of valve member is chimeric with above-mentioned valve port, and fluid flows out from the fluid passage of valve body transverse direction, valve member by chimeric valve port to bear pressure, or by away from valve port with pressure release; Above-mentioned induction control unit is arranged on valve inner and outside thereof, and induction control unit induction valve body internal pressure is so that control valve assembly.
Preferably, the inner ring of described valve port is fixed with valve seat.
Preferably, valve gap in the top connection of described valve body, middle valve gap and valve body are fixed by bolt and nut; Above-mentioned middle valve gap top connects bonnet, and bonnet and middle valve gap are fixed by bolt and nut; Be provided with diaphragm between above-mentioned bonnet and middle valve gap, between diaphragm and bonnet inwall, form the uuper valve chamber of valve body.
Preferably, described valve member comprises valve rod, main mouth sealing gasket, sliding plate and diaphragm pressing plate, and wherein, the upper end of above-mentioned valve rod connects diaphragm, and valve rod runs through the longitudinal flow passage of valve body, and valve port place is stretched in its lower end; Above-mentioned diaphragm pressing plate is arranged on diaphragm both sides, to support and fixing diaphragm, diaphragm pressing plate top is provided with connecting sleeve, and diaphragm pressing plate is fixed on valve rod by connecting sleeve; Above-mentioned main mouth sealing gasket and sliding plate are fixed on the lower end of above-mentioned valve rod.
Preferably, described sliding plate is fixed by sliding plate pressure cap and valve rod, and above-mentioned main mouth sealing gasket is arranged on the bottom of sliding cap, and the bottom of main mouth sealing gasket is provided with sliding cap pressing plate, and cunning cap pressing plate, main mouth sealing gasket and sliding cap is fixed together by hexagon head bolt.
Preferably, the race diameter of described main mouth sealing gasket is greater than the race diameter of sliding cap and sliding cap pressing plate, and the bottom of main mouth sealing gasket is adjacent to valve seat to intercept valve port.
Preferably, the lower end of described middle valve gap is from top to bottom stretched into the longitudinal flow passage of valve body, and form cylindrical shell, above-mentioned valve rod runs through this cylindrical shell, and be provided with bearing housing between the inwall of cylindrical shell and the outer wall of valve rod, bearing housing is connected by key with valve rod.
Preferably, spring is provided with between the lower end surface of described middle valve gap and the upper-end surface of sliding plate.
Preferably, described induction control unit comprises high-pressure pilot valve, low pressure sluicing solenoid valve, pressure transducer and ball valve, and wherein, above-mentioned pressure transducer is arranged in the transverse fluid channels of valve body; Above-mentioned high-pressure pilot valve and low pressure sluicing solenoid valve are connected with pressure transducer by ball valve, to respond to the pressure in valve body, and control valve assembly.
The beneficial effects of the utility model are:
1, high-pressure pilot valve of the present utility model and low pressure sluicing solenoid valve are autocontrol valve, automatically can respond to pressure change (low pressure, high pressure) in pipeline and can automatically open the shock wave of releasing and returning.
2, water pump normally runs and occurs that low pressure or power-off occur that low pressure and termination of pumping occurred low pressure after 30 seconds, and run into any one situation, control box can be given an order in time and valve port is opened immediately.
3, the utility model is except the pressure surge that can prevent a variety of causes low pressure and produce, also have and prevent system overpressure, the i.e. function of safety valve, when system pressure continues to raise, exceed the setting value of high-pressure pilot valve, high-pressure pilot valve is opened, the pressure releasing of uuper valve chamber, valve rod is moved upward, and valve port is opened immediately, pressure relief system, when system pressure is lower than pilot valve setting value, high-pressure pilot valve is closed, diaphragm moves downward reinstatement, thus band ovable valve stem moves downward, winner's mouth sealing gasket is made slowly to be adjacent to valve seat, valve port automatic slowly is closed and (is automatically linearly closed, secondary pressure fluctuation can not be produced).
4, the solenoid valve on valve is opened rapidly, and uuper valve chamber pressure disappears immediately, impels main valve to open fast, clearance pressure wave, reaches the effect that water hammer is eliminated in prevention.
5, valve body adopts the design of Y molded breadth body, semi-parabolic type runner, the anti-greatly strong cavitation erosion of the little inflow-rate of water turbine of flow resistance.
6, electric control box is designed to UPS control box, telecontrol solenoid valve open function when ups power possesses power-off.
7, electromagnetic type waterproof preaction valve has electronic alarm and distant control function, and valve is opened and spread out of relevant (active) signal to central control system, in the state of accident, can be opened it by control room telecontrol simultaneously.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
In figure: 1, valve body, 2, screw, 3, main mouth sealing gasket, 4, hexagon head bolt, 5, sliding plate pressure cap, 6, sliding plate pressing plate, 7, valve seat, 8, sliding plate, 9, spring, 10, valve rod, 11, O shape ring, 12, diaphragm, 13, first bolt, 14, first nut, 15, diaphragm pressing plate, 16, attachment cap, 17, valve gap plug, 18, bonnet, 19, middle valve gap, 20, second bolt, 21, packing ring, 22, stud, 23, second nut, 24, bearing housing, 25, high-pressure pilot valve, 26, low pressure sluicing solenoid valve, 27, pressure transducer, 28, ball valve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figure 1, the technological scheme that the utility model is taked is as follows: a kind of diaphragm water hammer-resistant preaction valve, it is characterized in that: comprise valve body 1, valve member and induction control unit, wherein, the middle part of above-mentioned valve body 1 is cavity structure, this cavity comprises horizontal fluid passage and the fluid passage of longitudinal direction, and the inwall of valve body 1 protrudes and forms valve port 01 inside the fluid passage of transverse direction; Above-mentioned valve member intert be arranged on valve body 1 longitudinal direction fluid passage in, the lower end of valve member is chimeric with above-mentioned valve port 01, fluid flows out from the fluid passage of valve body 1 transverse direction, and valve member by being fitted together to valve port 01 to bear pressure, or passes through away from valve port 01 with pressure release; It is inner and outside that above-mentioned induction control unit is arranged on valve body 1, and induction control unit induction valve body 1 internal pressure is so that control valve assembly.
Preferably, the inner ring of described valve port 01 is fixed with valve seat 7.
Preferably, valve gap 19 in the top connection of described valve body 1, middle valve gap 19 is fixed by bolt and nut with valve body 1; Above-mentioned middle valve gap 19 top connects bonnet 18, and bonnet 18 and middle valve gap 19 are fixed by bolt and nut; Be provided with diaphragm 12 between above-mentioned bonnet 18 and middle valve gap 19, between diaphragm 12 and bonnet 18 inwall, form the uuper valve chamber of valve body 1.
Preferably, described valve member comprises valve rod 10, main mouth sealing gasket 3, sliding plate 8 and diaphragm pressing plate 15, and wherein, the upper end of above-mentioned valve rod 10 connects diaphragm 12, and valve rod 10 runs through the longitudinal flow passage of valve body, and valve port 01 place is stretched in its lower end; Above-mentioned diaphragm pressing plate 15 is arranged on diaphragm 12 both sides, to support and fixing diaphragm 12, diaphragm pressing plate 15 top is provided with connecting sleeve 16, and diaphragm pressing plate 15 is fixed on valve rod 10 by connecting sleeve 16; Above-mentioned main mouth sealing gasket 3 and sliding plate 8 are fixed on the lower end of above-mentioned valve rod 10.
Preferably, described sliding plate 8 is fixed by sliding plate pressure cap 5 and valve rod 10, above-mentioned main mouth sealing gasket 3 is arranged on the bottom of sliding cap 8, and the bottom of main mouth sealing gasket 3 is provided with sliding cap pressing plate 6, and cunning cap pressing plate 6, main mouth sealing gasket 3 and sliding cap 8 is fixed together by hexagon head bolt.
Preferably, the race diameter of described main mouth sealing gasket 3 is greater than the race diameter of sliding cap 8 and sliding cap pressing plate 6, and the bottom of main mouth sealing gasket 3 is adjacent to valve seat 7 to intercept valve port 01.
Preferably, the lower end of described middle valve gap 19 is from top to bottom stretched into the longitudinal flow passage of valve body 1, and form cylindrical shell 20, above-mentioned valve rod 10 runs through this cylindrical shell 20, be provided with bearing housing 24 between the inwall of cylindrical shell 20 and the outer wall of valve rod 10, bearing housing 24 is connected by key with valve rod 10.
Preferably, spring 9 is provided with between the lower end surface of described middle valve gap 19 and the upper-end surface of sliding plate 8.
Preferably, described induction control unit comprises high-pressure pilot valve 25, low pressure sluicing solenoid valve 26, pressure transducer 27 and ball valve 28, and wherein, above-mentioned pressure transducer 27 is arranged in the transverse fluid channels of valve body 1; Above-mentioned high-pressure pilot valve 25 and low pressure sluicing solenoid valve 26 are connected with pressure transducer 27 by ball valve 28, to respond to the pressure in valve body 1, and control valve assembly.
Further, during utility model works, high-pressure pilot valve, according to actual conditions and designing requirement, is set certain value by system, when systems stay boosts, exceed high-pressure pilot valve setting value, high-pressure pilot valve opens sluicing, impel valve port to open immediately, discharge unnecessary pressure, play the effect of safe valve.
Low pressure is there is when water pump runs well, or there is low pressure in power-off, and there is low pressure after cutting off the water 30 seconds, run into any one situation, pressure transducer outputs signal when reaching set pressure, and solenoid valve all can be energized immediately and open, uuper valve chamber sluicing decompression, valve port opens pressure release thereupon immediately, eliminates the generation of water hammer in advance; If once break down, with hand push button, its solenoid valves can be opened immediately, impel main valve to open rapidly, its pressure of return water ripple is eliminated by the prevention of this valve; Valve closing sends signal by the time relay, shut electromagnetic valve, makes it main valve and close.
Further, should note when the utility model uses:
1), this valve be installed in parallel in exit of pump safety check front end and standpipe close, outlet and pond, tank are connected saving water source.
2), install before pipeline to clean out, flushing line, install additional before valve one filter and a maintenance cut-off valve, with prevent impurity, foreign material flow into body cavity destroy sealing surface, install additional service valve be convenient to keep in repair.
3), notice that valve body upward arrow direction is that water (flow) direction can not be anti-loaded.
4), pressure transducer front end adds the corresponding maintenance ball valve of fixed filter, on the pipeline of mounted valve entrance point, is best apart from valve 7-8m.
5), the external copper pipe of valve belongs to easily worn part, installs and uses in process and should be protected, and affects valve normally use from External Force Acting causes distortion.
6), high-pressure pilot valve pressure release value setting, half-turn is opened again after first needle-valve being closed before pressure regulation, this aperture facts have proved it is best, during such opening and closing all can current very steady, during pressure regulation, water pump is opened, and the adjusting screw rod that turns clockwise is that pressure release value increases, otherwise is little, be adjusted to desired location, locking adjusting nut.
7), low pressure pilot (low pressure sluicing solenoid valve) cracking pressure value setting: according to field condition and designing requirement, when ordinary water pump outlet pressure drops to 0.2mpa, pressure transducer output signal central control chamber, solenoid valve opens pressure release immediately.
8), the closed electromagnetic valve time, controlled by the time relay, the time can regulate in 0-99 seconds, with field adjustable when main valve is closed, did not have water hammer to occur as Best Times.
9), examination water time want before slow Open valve service valve, slowly increase pressure, avoid that unexpected pressure surge occurs and cause accident.
Embodiment of the present utility model just introduces its embodiment, does not lie in and limits its protection domain.The technician of the industry can make some amendment under the inspiration of the present embodiment, therefore all equivalences done according to the utility model the scope of the claims change or modify, and all belong within the scope of the utility model Patent right requirement.
Claims (9)
1. a diaphragm water hammer-resistant preaction valve, it is characterized in that: comprise valve body (1), valve member and induction control unit, wherein, the middle part of above-mentioned valve body (1) is cavity structure, this cavity comprises horizontal fluid passage and the fluid passage of longitudinal direction, and the inwall of valve body (1) protrudes and forms valve port (01) inside the fluid passage of transverse direction; Above-mentioned valve member is interspersed to be arranged in the longitudinal fluid passage of valve body (1), the lower end of valve member is chimeric with above-mentioned valve port (01), fluid flows out from the fluid passage that valve body (1) is horizontal, valve member by being fitted together to valve port (01) to bear pressure, or passes through away from valve port (01) with pressure release; It is inner and outside that above-mentioned induction control unit is arranged on valve body (1), and induction control unit induction valve body (1) internal pressure is so that control valve assembly.
2. a kind of diaphragm water hammer-resistant preaction valve according to claim 1, is characterized in that: the inner ring of described valve port (01) is fixed with valve seat (7).
3. a kind of diaphragm water hammer-resistant preaction valve according to claim 2, is characterized in that: valve gap (19) in the top connection of described valve body (1), and middle valve gap (19) and valve body (1) are fixed by bolt and nut; Above-mentioned middle valve gap (19) top connects bonnet (18), and bonnet (18) and middle valve gap (19) are fixed by bolt and nut; Be provided with diaphragm (12) between above-mentioned bonnet (18) and middle valve gap (19), between diaphragm (12) and bonnet (18) inwall, form the uuper valve chamber of valve body (1).
4. a kind of diaphragm water hammer-resistant preaction valve according to claim 3, it is characterized in that: described valve member comprises valve rod (10), main mouth sealing gasket (3), sliding plate (8) and diaphragm pressing plate (15), wherein, the upper end of above-mentioned valve rod (10) connects diaphragm (12), valve rod (10) runs through the longitudinal flow passage of valve body, and valve port (01) place is stretched in its lower end; Above-mentioned diaphragm pressing plate (15) is arranged on diaphragm (12) both sides, to support and fixing diaphragm (12), diaphragm pressing plate (15) top is provided with connecting sleeve (16), and diaphragm pressing plate (15) is fixed on valve rod (10) by connecting sleeve (16); Above-mentioned main mouth sealing gasket (3) and sliding plate (8) are fixed on the lower end of above-mentioned valve rod (10).
5. a kind of diaphragm water hammer-resistant preaction valve according to claim 4, it is characterized in that: described sliding plate (8) is fixed by sliding plate pressure cap (5) and valve rod (10), above-mentioned main mouth sealing gasket (3) is arranged on the bottom of sliding cap (8), the bottom of main mouth sealing gasket (3) is provided with sliding cap pressing plate (6), and will slide cap pressing plate (6), main mouth sealing gasket (3) and sliding cap (8) by hexagon head bolt and be fixed together.
6. a kind of diaphragm water hammer-resistant preaction valve according to claim 5, it is characterized in that: the race diameter of described main mouth sealing gasket (3) is greater than the race diameter of sliding cap (8) and sliding cap pressing plate (6), and the bottom of main mouth sealing gasket (3) is adjacent to valve seat (7) to intercept valve port (01).
7. a kind of diaphragm water hammer-resistant preaction valve according to claim 6, it is characterized in that: the lower end of described middle valve gap (19) is from top to bottom stretched into the longitudinal flow passage of valve body (1), form cylindrical shell (20), above-mentioned valve rod (10) runs through this cylindrical shell (20), be provided with bearing housing (24) between the inwall of cylindrical shell (20) and the outer wall of valve rod (10), bearing housing (24) is connected by key with valve rod (10).
8. according to a kind of diaphragm water hammer-resistant preaction valve that claim 7 is stated, it is characterized in that: between the lower end surface of described middle valve gap (19) and the upper-end surface of sliding plate (8), be provided with spring (9).
9. a kind of diaphragm water hammer-resistant preaction valve according to claim 8, it is characterized in that: described induction control unit comprises high-pressure pilot valve (25), low pressure sluicing solenoid valve (26), pressure transducer (27) and ball valve (28), wherein, above-mentioned pressure transducer (27) is arranged in the transverse fluid channels of valve body (1); Above-mentioned high-pressure pilot valve (25) and low pressure sluicing solenoid valve (26) are connected with pressure transducer (27) by ball valve (28), to respond to the pressure in valve body (1), and control valve assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305298.2U CN204267810U (en) | 2014-06-10 | 2014-06-10 | A kind of diaphragm water hammer-resistant preaction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305298.2U CN204267810U (en) | 2014-06-10 | 2014-06-10 | A kind of diaphragm water hammer-resistant preaction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267810U true CN204267810U (en) | 2015-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305298.2U Expired - Fee Related CN204267810U (en) | 2014-06-10 | 2014-06-10 | A kind of diaphragm water hammer-resistant preaction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267810U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382400A (en) * | 2015-07-28 | 2017-02-08 | 安徽红星阀门有限公司 | Adjustable water discharger |
| WO2019062636A1 (en) * | 2017-09-29 | 2019-04-04 | 杭州三花研究院有限公司 | Block and fluid control device |
| CN110131462A (en) * | 2019-04-11 | 2019-08-16 | 深圳垦拓流体控制有限公司 | The automatically controlled protection system and automatically controlled guard method of solenoid valve, solenoid valve |
-
2014
- 2014-06-10 CN CN201420305298.2U patent/CN204267810U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382400A (en) * | 2015-07-28 | 2017-02-08 | 安徽红星阀门有限公司 | Adjustable water discharger |
| WO2019062636A1 (en) * | 2017-09-29 | 2019-04-04 | 杭州三花研究院有限公司 | Block and fluid control device |
| US11339896B2 (en) | 2017-09-29 | 2022-05-24 | Zhejiang Sanhua Intelligent Controls Co., Ltd. | Block and fluid control device |
| CN110131462A (en) * | 2019-04-11 | 2019-08-16 | 深圳垦拓流体控制有限公司 | The automatically controlled protection system and automatically controlled guard method of solenoid valve, solenoid valve |
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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 |
Granted publication date: 20150415 Termination date: 20180610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |