CN207064746U - A kind of water hammer discharge valve - Google Patents
A kind of water hammer discharge valve Download PDFInfo
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- CN207064746U CN207064746U CN201720992453.6U CN201720992453U CN207064746U CN 207064746 U CN207064746 U CN 207064746U CN 201720992453 U CN201720992453 U CN 201720992453U CN 207064746 U CN207064746 U CN 207064746U
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- valve
- slide opening
- flap
- hydraulic cavities
- water hammer
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Abstract
The utility model proposes a kind of water hammer discharge valve, including valve body, the valve body is provided with valve pocket, the inlet and outlet communicated with valve pocket, the valve body, which is provided with, stores power cylinder, the power cylinder that stores includes being used for the flap for controlling break-make between import and valve pocket in valve pocket, slide opening is provided between the storage power cylinder and valve body, it is provided with the slide opening and is connected with flap and the storage power bar of energy reciprocal telescopic, the slide opening is provided with hydraulic cavities of the internal diameter more than slide opening internal diameter relative to one end of valve pocket, the power bar that stores is provided with the piston ring coordinated with hydraulic cavities, the hydraulic cavities bottom is connected with the slow closing device for controlling medium flow field into and out speed in hydraulic cavities.The utility model is simple in construction, power spring closing presure is 1.1 times of operating pressure, when line pressure exceedes operating pressure, flap only needs 0.1 second or so directly to open, therefore it is rapid to open response, slowly closing so as to avoid the generation of valve closing water hammer effect, grow, easy to maintenance by service life when closed.
Description
Technical field
It the utility model is related to valve field, and in particular to a kind of water hammer discharge valve.
Background technology
Pipeline bleeder valve is a kind of valve for the pressure security for protecting webmaster.When the pressure of pipeline is beyond setting pressure,
The valve opening gives vent to hydraulic pressure, protects pipeline.Bleeder valve manufactured by the country at present, all changes up pass type or guide soon for Direct Action Type
Formula bleeder valve.I.e. when pipeline have water hammer high pressure wave arriving after, Direct Action Type change up soon pass type can induction pipe pressure quickly open
(but the pilot-operated type opening time is relatively slow), but after pipeline pressure is returned to below setup pressure value, bleeder valve can be closed quickly
Close.The fast opening and closing of above-mentioned valve causes pipe network to form secondary instantaneous high pressure；This secondary instantaneous high pressure is due to that bleeder valve is closed
Excessive velocities and formed, also have certain destruction to pipe network.
In view of the above-mentioned problems, China Patent No. 201210042134.0 discloses a kind of quick-opening slow-closing water hammer relief valve, it
Including valve body, bonnet is connected on valve body, valve body inner flow passage is provided with valve seat, and being provided with valve body can be with the valve of the opening and closing of valve base sealing
Valve, flap are connected with valve rod, and it also includes the sleeve for the one end open for passing bonnet and being fixedly connected between bonnet, and valve rod can
Mobile stretches into sleeve, is sealed between valve rod side wall and hub internal bore wall；Connection driving medium pipeline, driving are situated between in sleeve wall
Matter pipeline communicates with hub internal bore；The other end of pipeline connects UNICOM's container, and one-way throttle valve is connected with pipeline.
But the valve can extrude endoporus medium when opening, and when closed, preloading spring promotes flap to take out valve rod
Go out endoporus, now endoporus is in negative pressure state, therefore easily produces vacuum effect, therefore vacuum shape once occurs when it is closed
State, just effectively valve rod can not be controlled to eject to form effective damping, hence it is evident that fault of construction to be present.
Utility model content
Based on above mentioned problem, the utility model purpose is to provide a kind of simple in construction, and response is rapid, service life length,
It is easy to the water hammer discharge valve safeguarded.
For problem above, there is provided following technical scheme：A kind of water hammer discharge valve, including valve body, set on the valve body
There are valve pocket, the inlet and outlet communicated with valve pocket, the valve body, which is provided with, stores power cylinder, and the storage power cylinder includes being used in valve pocket
The flap of break-make between import and valve pocket is controlled, slide opening is provided between the storage power cylinder and valve body, is provided with the slide opening and valve
Valve is connected and the storage power bar of energy reciprocal telescopic, the slide opening are provided with hydraulic pressure of the internal diameter more than slide opening internal diameter relative to one end of valve pocket
Chamber, the power bar that stores are provided with the piston ring coordinated with hydraulic cavities, and the hydraulic cavities bottom is connected with for controlling in hydraulic cavities
The slow closing device of medium flow field into and out speed.
In said structure, and when water hammer effect occurs in pipeline, hydraulic pressure impacts flap and pushes up valve opening valve first, and piston ring makes
The resisting medium that negative pressure state quickly sucks slow closing device is presented in hydraulic cavities, while impact is drained from outlet caused by water hammer, when
After the water hammer effect past, flap return, to ensure to avoid the occurrence of valve closing water hammer effect, by setting piston ring, closed in flap
When extruding hydraulic pressure intracavitary medium enable its flow into slow closing device, so as to realize damping Slow Close effect；Slow closing device structure can be
Two choke valves and check valve parallel with one another, when negative pressure state is presented in hydraulic cavities, check valve, which is opened, makes medium from check valve
Hydraulic cavities are flowed rapidly into, when hydraulic pressure intracavitary medium is extruded when flap closes, closed check valve so that medium can only pass through throttling
Valve is slowly flowed across, and damping is realized with this.
The utility model is further arranged to, and the storage power cylinder is provided with adjusting screw rod relative to one end end of slide opening, stores
The upper support seat to be offseted with adjusting screw rod is provided with power cylinder, the storage power bar is provided with lower support base, institute relative to one end of flap
Stating between upper support seat and lower support base this has a power spring, and the adjusting screw rod coordinates with storing power cylinder screw thread controls storage power with this
Spring precompressed elastic force, so as to control the Opening pressure of flap.
The utility model is further arranged to, and the import is provided with valve seat with valve pocket intersection, and the flap connects with valve seat
Touch sealing.
In said structure, valve seat is removable, facilitates later maintenance.
The utility model is further arranged to, and removable sliding sleeve, the slide opening are provided between the storage power cylinder and valve body
And hydraulic cavities are arranged on sliding sleeve.
In said structure, removable sliding sleeve, facilitate later maintenance.
The utility model is further arranged to, and the slide opening inwall is provided with least the first internal channel together, in described first
The first sealing ring coordinated with storing the sealing of power bar is provided with groove；The hydraulic pressure cavity wall is provided with least one of second internal channel,
The second sealing ring coordinated with piston ring packing is provided with second internal channel.
In said structure, the first sealing ring and the second sealing ring are used to increase sealing effectiveness, avoid that dielectric leakage occurs.
The beneficial effects of the utility model：Simple in construction, flap is directly closed by power spring, the setting of power spring
Closing presure is 1.1 times of operating pressure, and when line pressure exceedes 1.1 times of operating pressure, flap is directly opened, this process
0.1 second or so only is needed, therefore rapid by response is opened during water hammer effect, slowly closing is so as to avoiding valve closing water when closed
Hammer the generation of effect into shape, service life length is easy to maintenance.
Brief description of the drawings
Fig. 1 is overall complete section structural representation of the present utility model.
Fig. 2 is the utility model Fig. 1 A portions mplifying structure schematic diagram.
Label implication in figure：10- valve bodies；11- valve pockets；12- imports；13- is exported；14- valve seats；20- stores power cylinder；21- valves
Valve；22- stores power bar；221- piston rings；23- adjusting screw rods；24- upper support seats；Support base under 25-；26- power springs；30- is slided
Set；31- slide openings；The internal channels of 311- first；The sealing rings of 312- first；32- hydraulic cavities；The internal channels of 321- second；322- second is close
Seal；40- slow closing devices.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to the scope of the utility model.
With reference to figure 1 and Fig. 2, a kind of water hammer discharge valve as shown in Figures 1 and 2, including valve body 10, set on the valve body 10
There are valve pocket 11, the import 12 communicated with valve pocket 11 and outlet 13, the valve body 10, which is provided with, stores power cylinder 20, and the storage power cylinder 20 includes
It is used for the flap 21 for controlling break-make between import 12 and valve pocket 11 in valve pocket 11, is set between the storage power cylinder 20 and valve body 10
Have a slide opening 31, be provided with and be connected with flap 21 and the storage power bar 22 of energy reciprocal telescopic in the slide opening 31, the slide opening 31 relative to
One end of valve pocket 11 is provided with the hydraulic cavities 32 that internal diameter is more than the internal diameter of slide opening 31, and the storage power bar 22 is provided with to be coordinated with hydraulic cavities 32
Piston ring 221, the bottom of hydraulic cavities 32 is connected with the Slow Close for controlling medium flow field into and out speed in hydraulic cavities 32
Device 40.
In said structure, and when water hammer effect occurs in pipeline, hydraulic pressure impacts flap 21 and pushes up valve opening valve 21 first, piston
Ring 221 makes hydraulic cavities 32 that negative pressure state be presented quickly to suck the resisting medium of slow closing device 40, at the same impact caused by water hammer from
Outlet 13 is drained, and after the water hammer effect past, the return of flap 21, to ensure to avoid the occurrence of valve closing water hammer effect, is passed through to set and is lived
Plug ring 221, medium in hydraulic cavities 32 is extruded when flap 21 closes and is enabled its flow into slow closing device 40, so as to realize damping Slow Close
Effect；The structure of slow closing device 40 can be two choke valves and check valve parallel with one another, when negative pressure state is presented in hydraulic cavities 32
When, check valve, which is opened, makes medium flow rapidly into hydraulic cavities 32 from check valve, and medium in hydraulic cavities 32 is extruded when flap 21 closes
When, closed check valve so that medium can only be slowly flowed across by choke valve, and damping is realized with this.
In the present embodiment, the storage power cylinder 20 is provided with adjusting screw rod 23 relative to one end end of slide opening 31, stores power cylinder 20
It is interior to be provided with lower support base relative to one end of flap 21 provided with the upper support seat 24 to be offseted with adjusting screw rod 23, the storage power bar 22
25, this has power spring 26 between the upper support seat 24 and lower support base 25, and the adjusting screw rod 23 is with storing the screw thread of power cylinder 20
Coordinate and the precompressed elastic force of power spring 26 is controlled with this, so as to control the Opening pressure of flap 21.
In the present embodiment, the import 12 is provided with valve seat 14 with the intersection of valve pocket 11, and the flap 21 contacts with valve seat 14
Sealing.
In said structure, valve seat 14 is removable, facilitates later maintenance.
In the present embodiment, removable sliding sleeve 30, the slide opening 21 and liquid are provided between the storage power cylinder 20 and valve body 10
Pressure chamber 32 is arranged on sliding sleeve 30.
In said structure, removable sliding sleeve 30, facilitate later maintenance.
In the present embodiment, the inwall of slide opening 31 is provided with least one of first internal channel 311, first internal channel 311
It is interior to be provided with the first sealing ring 312 coordinated with storing the sealing of power bar 22；The inwall of hydraulic cavities 32 is provided with least one of second septal fossula
Groove 321, second internal channel 321 is interior to be provided with the second sealing ring 322 coordinated with the sealing of piston ring 221.
In said structure, the first sealing ring 312 and the second sealing ring 322 are used to increase sealing effectiveness, avoid that medium occurs
Leakage.
The beneficial effects of the utility model：Simple in construction, flap 21 is directly closed by power spring 26, power spring 26
Set closing presure as 1.1 times of operating pressure, when line pressure exceedes 1.1 times of operating pressure, flap 21 is directly opened,
This process only needs 0.1 second or so, therefore rapid by response is opened during water hammer effect, and slowly closing is so as to keeping away when closed
Exempt from the generation of valve closing water hammer effect, service life length is easy to maintenance.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and modification, above-mentioned vacation can also be made
If these improvement and modification also should be regarded as the scope of protection of the utility model.
Claims (5)
1. a kind of water hammer discharge valve, including valve body, the inlet and outlet that the valve body is provided with valve pocket, communicated with valve pocket, it is special
Sign is：The valve body, which is provided with, stores power cylinder, and the storage power cylinder includes being used to control break-make between import and valve pocket in valve pocket
Flap, be provided with slide opening between the storage power cylinder and valve body, be provided with and be connected with flap and the storage of energy reciprocal telescopic in the slide opening
Power bar, the slide opening are provided with the hydraulic cavities that internal diameter is more than slide opening internal diameter relative to one end of valve pocket, the storage power bar be provided with
The piston ring that hydraulic cavities coordinate, the hydraulic cavities bottom are connected with for controlling the slow of medium flow field into and out speed in hydraulic cavities
Close device.
A kind of 2. water hammer discharge valve according to claim 1, it is characterised in that：It is described to store the one end of power cylinder relative to slide opening
End is provided with adjusting screw rod, stores the upper support seat for being provided with power cylinder and being offseted with adjusting screw rod, the storage power bar is relative to flap
One end is provided with lower support base, and this has power spring between the upper support seat and lower support base, and the adjusting screw rod is with storing power cylinder
Screw thread coordinates controls power spring precompressed elastic force with this, so as to control the Opening pressure of flap.
A kind of 3. water hammer discharge valve according to claim 2, it is characterised in that：The import is provided with valve with valve pocket intersection
Seat, the flap contact sealing with valve seat.
A kind of 4. water hammer discharge valve according to claim 3, it is characterised in that：Being provided between the storage power cylinder and valve body can
Tear the sliding sleeve of formula open, the slide opening and hydraulic cavities are arranged on sliding sleeve.
A kind of 5. water hammer discharge valve according to claim 4, it is characterised in that：The slide opening inwall is provided with least together the
One internal channel, first internal channel is interior to be provided with the first sealing ring coordinated with storing the sealing of power bar；The hydraulic pressure cavity wall is provided with
At least the second internal channel, second internal channel are interior provided with the second sealing ring coordinated with piston ring packing together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992453.6U CN207064746U (en) | 2017-08-09 | 2017-08-09 | A kind of water hammer discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992453.6U CN207064746U (en) | 2017-08-09 | 2017-08-09 | A kind of water hammer discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207064746U true CN207064746U (en) | 2018-03-02 |
Family
ID=61520179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720992453.6U Active CN207064746U (en) | 2017-08-09 | 2017-08-09 | A kind of water hammer discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207064746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468840A (en) * | 2018-05-21 | 2018-08-31 | 上海瑞晨环保科技有限公司 | Micro-resistance slowly-closed type underwater bottom valve |
-
2017
- 2017-08-09 CN CN201720992453.6U patent/CN207064746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468840A (en) * | 2018-05-21 | 2018-08-31 | 上海瑞晨环保科技有限公司 | Micro-resistance slowly-closed type underwater bottom valve |
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