CN207145722U - A kind of water attack release valve - Google Patents
A kind of water attack release valve Download PDFInfo
- Publication number
- CN207145722U CN207145722U CN201720748067.2U CN201720748067U CN207145722U CN 207145722 U CN207145722 U CN 207145722U CN 201720748067 U CN201720748067 U CN 201720748067U CN 207145722 U CN207145722 U CN 207145722U
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- valve
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- bonnet
- sealing
- water attack
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Abstract
The utility model provides a kind of water attack release valve,Including valve body,Bonnet above valve body,Seal and coordinate and opposing valve sleeves are slidingly sealed the piston of cooperation installed in the seal receptacle and valve pocket of valve inner and with seal receptacle,Water attack release valve is also included through bonnet and the combination valve shaft of piston and the elastomeric element with combination valve axis connection,Combination valve shaft overcomes the spring energy opposing pistons of elastomeric element to move up and down,And combination valve shaft seals cooperation with piston and bonnet,Valve body is provided with intake tunnel and exhalant canal,Piston,Valve pocket forms adjusting cavity with bonnet,The inlet opening of intake tunnel and adjusting cavity is communicated with combination valve shaft,The apopore of connection exhalant canal is additionally provided with piston,The utility model combines Spring-Loaded Pressure Relief Valve with the advantages of differential type relief valve,Solve the problems, such as that Spring-Loaded Pressure Relief Valve spring force can not do the problem of big and differential type relief valve response speed is slow simultaneously,And then quick unlatching pressure release eliminates the effect of water hammer.
Description
Technical field
It the utility model is related to valve field, more particularly to a kind of water attack release valve.
Background technology
At present, in fresh water pipe system, pressure relief safety valve typically can be all used, such valve all changes up pass soon for Direct Action Type
Type or pilot-operated type bleeder valve, it can open pressure release after the pressure of pipeline exceedes the setting value of pressure relief safety valve；But when unexpected
During termination of pumping, such valve can close rapidly, cause rate of circulating flow in valve outlet pipeline to decline suddenly, and produce flow-reversing impingement pressure,
Velocity jump can produce the transmission of percussive pressure Reeb, and transmission speed is very high, can make the pressure rise of valve outlet section to rated pressure
Several times, here it is the water hammer in pipeline, and it can cause valve or pipeline breaking, produce accident.
Because the instantaneous high pressure time is rapid caused by water hammer, and the unlatching of pressure relief safety valve needs the regular hour, therefore
It can not meet quickly pressure release；After other pressure relief safety valve opens pressure release, when pipeline pressure returns to setup pressure value
Afterwards, pressure relief safety valve meeting quick closedown, causes pipeline to form secondary instantaneous high pressure；This secondary instantaneous high pressure is due to pressure release safety
Valve closing velocity it is too fast and formed, certain destruction can also be produced to pipeline.
In consideration of it, it is necessary to design a kind of water attack release valve to solve the above problems.
Utility model content
The technical problems to be solved in the utility model is：There is provided it is a kind of not only can quickly open pressure release eliminate water hammer,
Can be with the water attack release valve of control valve closing velocity.
To reach above-mentioned purpose, the utility model provides following technical scheme：A kind of water attack release valve, including valve body,
Bonnet above valve body, the seal receptacle installed in valve inner and valve pocket and being sealed with seal receptacle coordinates and relative valve
Set is slidingly sealed the piston of cooperation, and the water attack release valve also includes the combination valve shaft and and combination valve through bonnet and piston
The elastomeric element of axis connection, the combination valve shaft overcomes the spring energy opposing pistons of elastomeric element to move up and down, and combines valve shaft
Cooperation is sealed with piston and bonnet, the valve body is provided with intake tunnel and exhalant canal, and the piston, valve pocket and bonnet are formed
Adjusting cavity, it is described to combine the inlet opening that intake tunnel and adjusting cavity are communicated with valve shaft, it is additionally provided with and connects out on the piston
The apopore of aquaporin.
Further, the combination valve shaft includes the throttling rod that can adjust inlet opening size.
Further, the combination valve shaft includes the main valve plug coordinated with piston and is connected main valve plug and coordinates with bonnet
Auxiliary valve core, the inlet opening include be arranged on the axially extending bore of main valve plug and be arranged on the radial direction through hole of auxiliary valve core, it is described
Axially extending bore connects with radial direction through hole, and the throttling rod inserts above auxiliary valve core and terminates in axially extending bore and radial direction through hole
Intersection.
Further, the seal receptacle includes the sealing and supporting part be arrangeding in parallel；The valve pocket set supporting part and
Between bonnet；The piston includes matching somebody with somebody with the piston lower wall of both seals cooperation, above supporting part and with valve pocket sealing
The piston upper wall and the midfeather of connection piston lower wall and piston upper wall of conjunction, the apopore are arranged on midfeather.
Further, the main valve plug is provided with the first sealing and close with piston upper wall coordinated with the sealing of piston lower wall
The second sealing coordinated is sealed, first sealing and the second sealing are equipped with the first sealing ring, first sealing
On the first valve seat for fixing the first sealing ring is installed, screen pack is installed on first valve seat.
Further, described auxiliary valve core one end is threadedly coupled with the second sealing；The auxiliary valve core other end passes through bonnet
And the spring support of support elastomeric element is convexly equipped with, the resilient seat is above bonnet.
Further, the bonnet includes the flat part coordinated with valve body and the collecting to be formed is upwardly extended from flat part
Chamber, the second valve seat, the second sealing ring on the second valve seat coordinated with auxiliary valve core sealing is installed on the flat part
And on flat part and the fixed cover of the second sealing ring is fixed, the elastomeric element and resilient seat are in host cavity
Portion.
Further, the pressing plate for compressing elastomeric element is installed above the host cavity, the pressing plate, which has extended downwardly, to be stretched
Enter the guidance part inside host cavity, the elastomeric element is located inside guidance part.
Further, the throttling rod penetrates host cavity and auxiliary valve core, the throttling rod and auxiliary valve core above pressing plate
Screw thread coordinates, and the throttling rod is provided with the taper adjustment portion of the intersection positioned at axially extending bore and radial direction through hole.
Further, the adjusting nut coordinated with throttling rod screw thread is provided with above the pressing plate.
Compared with prior art, the utility model at least has advantages below：
1. the utility model combines Spring-Loaded Pressure Relief Valve with the advantages of differential type relief valve, while solves bullet
The problem of spring formula pressure release valve spring force can not do the problem of big and slow differential type relief valve response speed, and then it is quick
Open the effect that pressure release eliminates water hammer.
2. the utility model, can be with control valve by the inlet opening water inlet area among throttling rod group valve for adjusting axle
Closing velocity, valve is avoided to close valve water hammer because quick closedown is formed.
3. water attack release valve of the present utility model is without exterior arrangement conduit and pilot valve, easy for installation, freezing-proof theft-proof；It is integrated
Differential type control structure, compact-sized, fault rate is small.
Brief description of the drawings
Fig. 1 is the structural representation of water attack release valve of the present utility model.
Fig. 2 be Fig. 1 shown in water attack release valve in part A partial enlarged drawing.
Fig. 3 be Fig. 1 shown in water attack release valve in part B partial enlarged drawing.
Fig. 4 is the structural representation of main valve core assembly in water attack release valve of the present utility model.
Fig. 5 is the structural representation of auxiliary valve core component in water attack release valve of the present utility model.
Embodiment
The structure and utility model content of water attack release valve of the present utility model are described with reference to Fig. 1 to 5.
A kind of water attack release valve, including valve body 1, the bonnet 2 above valve body 1, the sealing inside valve body 1
Seat 3 and valve pocket 4, coordinate with the sealing of seal receptacle 3 and opposing valve sleeves 4 are slidingly sealed the piston 5 of cooperation, through bonnet 2 and piston 5
Combination valve shaft 6, with combining elastomeric element 7 that valve shaft 6 connects and above bonnet 2 and compressing the pressing plate of elastomeric element 7
8。
Intake tunnel 9 and exhalant canal 10 of the valve body 1 including centerline collineation, the isolation being arranged on inside valve body 1
Inwall 11 and the installation passage 12 above valve body 1.The intake tunnel 9 and exhalant canal 10 are isolated inwall 11 and separated
Do not connect.The isolation inwall 11 is provided with the valve port 13 for being used for installing seal receptacle 3.Peace is convexly equipped with inside the installation passage 12
Fill the convex shoulder 14 of seal receptacle 3（Ginseng Fig. 2 in detail）.
The bonnet 2 includes the flat part 15 coordinated with valve body 1 and upwardly extends the host cavity to be formed from flat part 15
16.The flat part 15 is bolted on valve body 1 by some.
The seal receptacle 3 includes the sealing 17 and supporting part 18 be arrangeding in parallel.The sealing 17 is arranged on valve port 13
On.The supporting part 18 is arranged on convex shoulder 14.
The valve pocket 4 is set between supporting part 18 and bonnet 2.Sealing paste between the upper surface of the valve pocket 4 and bonnet 2
Close.
The piston 5 include with sealing 17 sealing coordinate piston lower wall 19, above supporting part 18 and with valve pocket 4
Seal the piston upper wall 20 coordinated and the midfeather 21 of connection piston lower wall 19 and piston upper wall 20.The piston lower wall 19 with
The 3rd sealing ring is provided between sealing 17.The piston upper wall 20, the flat part 15 of valve pocket 4 and bonnet 2 form adjusting cavity 22.
The midfeather 21 is additionally provided with the apopore 23 of connection exhalant canal 10.
The combination valve shaft 6 overcomes the spring energy opposing pistons 5 of elastomeric element 7 to move up and down.The combination valve shaft 6 is with living
Plug 5 and bonnet 2 seal cooperation.The inlet opening of intake tunnel 9 and adjusting cavity 21 is communicated with the combination valve shaft 6.It is described
Combination valve shaft 6 is including the throttling rod 24 that can adjust inlet opening size, the main valve plug 25 coordinated with piston 5 and is connected main valve plug 25
And the auxiliary valve core 26 coordinated with bonnet 2.The inlet opening includes being arranged on the axially extending bore 27 of main valve plug 25 and is arranged on pair
The radial direction through hole 28 of valve element 26.The axially extending bore 27 connects with radial direction through hole 28.
In host cavity 16 and auxiliary valve core 26 that the throttling rod 24 penetrates bonnet 2 from the top of pressing plate 8, and from auxiliary valve core 26
Top is inserted and terminates in the intersection of axially extending bore 27 and radial direction through hole 28.The throttling rod 24 coordinates with the screw thread of auxiliary valve core 26.
The throttling rod 24 is provided with the taper adjustment portion 29 of the intersection positioned at axially extending bore 27 and radial direction through hole 28.The throttling rod 24
By moving up and down, taper adjustment portion 29 and axially extending bore 27 and the sectional area of radial direction through hole 28 are changed, and then adjust
The effect of flow.
The main valve plug 25 is provided with the first sealing 30 and close with piston upper wall 20 coordinated with the sealing of piston lower wall 19
Seal the second sealing 31 coordinated.The sealing 31 of first sealing 30 and second is equipped with the first sealing ring 32.Described
The first valve seat 33 for fixing the first sealing ring 32 is installed on one sealing 30.Screen pack is installed on first valve seat 33
34.The screen pack 34 can filter out the large granular impurity in medium, prevent inlet opening to be blocked.
Described one end of auxiliary valve core 26 is threadedly coupled with the second sealing 31 of main valve plug 25.The other end of auxiliary valve core 26 is worn
Cross the flat part 15 of bonnet 2 and be convexly equipped with the spring support 35 of support elastomeric element 7.The spring support 35 is located at the upper of flat part 15
Side.The second valve seat 36 coordinated with the sealing of auxiliary valve core 26, the on the second valve seat 36 are installed on the flat part 15
Two sealing rings 37 and on flat part 15 and fix the fixed cover 38 of the second sealing ring 37（Ginseng Fig. 3 in detail）.The elasticity
Part 7 and spring support 34 are located inside host cavity 16.
Into convex, they are for the cross section of first sealing ring 32, the second sealing ring 37 and the 3rd sealing ring
Self sealing structure, improve sealing property.
The elastomeric element 7 provides elastic force using spring.Described one end of elastomeric element 7 is set on spring base 34；Separately
One end is pressed on the lower section of pressing plate 8.
The pressing plate 8 is threadably secured installed in the top of host cavity 16.The pressing plate 8, which has extended downwardly, stretches into collecting
Guidance part 39 inside chamber 15.The elastomeric element 7 is located inside guidance part 39.The top of pressing plate 8 is additionally provided with and throttling rod
The adjusting nut 40 that 24 screw threads coordinate.The adjusting nut 40 can adjust the length that pressing plate 8 is stretched into inside host cavity 16, and then
Change the elastic force of elastomeric element 7, in order to the Opening pressure size of adjustment combination valve shaft 6.
The operation principle of water attack release valve of the present utility model is as follows：
It is now hydraulic pressure superpressure by the elastic force of the regulation elasticity part 7 of adjusting nut 40 1. valve is in the closed position
When can push combination valve shaft 6 open, now the hydraulic pressure of intake tunnel 9 enters adjusting cavity 22 from the inlet opening at combination valve shaft 6 center, due to
The sectional area S2 of piston upper wall 20 corresponding to adjusting cavity is more than the sectional area S1 of piston lower wall 18,（S2>S1,P1=P2）, valve exists
Closed under hydraulic pressure self-acting；
2. when system overpressure, system pressure is more than the elastic force of elastomeric element 7, and combination valve shaft 6 is open, now combination valve
The sealing very first time between axle 6 and piston lower wall 19 is destroyed, and the pressure very first time of intake tunnel 9 is released here；Together
When, with combination valve shaft 6 move up, piston upper wall 20 with combine the sealing between valve shaft 6 and meanwhile be destroyed, adjusting cavity 22
Press water is released rapidly, therefore the pressure in adjusting cavity 22 is zero (P2=0) rapidly, hydrodynamic thrust of the piston in intake tunnel 9
Move up rapidly down, the sealing of piston 5 and seal receptacle 3 is destroyed, and the big discharge opening of valve is opened rapidly, quick pressure releasing.
3. when system pressure reduce, less than setting pressure when, the elastic force of elastomeric element 7 acts on group more than pressure medium
Close on valve shaft 6, elastomeric element 7 promotes combination valve shaft 6 to move down reset, and upper wall, the lower wall for now combining valve shaft 6 and piston 5 are formed
Seal, now the pressure of intake tunnel enters adjusting cavity 22 from the inlet opening among combination valve shaft 6, due to the section of piston upper wall 20
Product is more than the sectional area of piston lower wall, and under same hydraulic condition, the thrust of adjusting cavity 22 pushes away more than the hydraulic pressure of intake tunnel
Power, piston 5 start to move down closing valve, and the water intake velocity for the press water that the speed that piston moves down is depended in adjusting cavity 22,
Therefore by the water inlet area of the inlet opening among 24 group valve for adjusting axle of throttling rod 6, can be avoided with control valve closing velocity
Valve closes valve water hammer because quick closedown is formed.
In summary, preferred embodiment of the present utility model is these are only, should not be limited with this of the present utility model
Scope.I.e. every simple equivalent changes and modifications made according to the utility model claims book and description, all should
Still belong in the range of the utility model patent covers.
Claims (10)
1. a kind of water attack release valve, including valve body, the bonnet above valve body, seal receptacle and valve installed in valve inner
Set and being sealed with seal receptacle coordinates and opposing valve sleeves are slidingly sealed the piston of cooperation, it is characterised in that：The water attack release valve
Also include overcoming bullet through bonnet and the combination valve shaft of piston and the elastomeric element with combination valve axis connection, the combination valve shaft
Property part spring energy opposing pistons move up and down, and combine valve shaft and piston and bonnet seals cooperation, the valve body is provided with
Intake tunnel and exhalant canal, the piston, valve pocket and bonnet form adjusting cavity, are communicated with leading into water on the combination valve shaft
The inlet opening in road and adjusting cavity, the apopore of connection exhalant canal is additionally provided with the piston.
2. water attack release valve as claimed in claim 1, it is characterised in that：The combination valve shaft includes that inlet opening size can be adjusted
Throttling rod.
3. water attack release valve as claimed in claim 2, it is characterised in that：The combination valve shaft includes the main valve coordinated with piston
Core and connection main valve plug and with bonnet coordinate auxiliary valve core, the inlet opening include be arranged on main valve plug axially extending bore and
The radial direction through hole of auxiliary valve core is arranged on, the axially extending bore is connected with radial direction through hole, and the throttling rod is inserted above auxiliary valve core
Enter and terminate in axially extending bore and the intersection of radial direction through hole.
4. water attack release valve as claimed in claim 3, it is characterised in that：The seal receptacle include the sealing that be arranged in parallel and
Supporting part；The valve pocket is set between supporting part and bonnet；The piston includes piston lower wall, the position coordinated with both seals
The piston upper wall coordinated and the midfeather for being connected piston lower wall and piston upper wall are sealed above supporting part and with valve pocket, it is described
Apopore is arranged on midfeather.
5. water attack release valve as claimed in claim 4, it is characterised in that：The main valve plug, which is provided with to seal with piston lower wall, to be coordinated
The first sealing and with piston upper wall sealing coordinate the second sealing, first sealing and the second sealing are all provided with
There is the first sealing ring, the first valve seat for fixing the first sealing ring is installed on first sealing, pacified on first valve seat
Equipped with screen pack.
6. water attack release valve as claimed in claim 5, it is characterised in that：Described auxiliary valve core one end connects with the second sealing screw thread
Connect；The auxiliary valve core other end is through bonnet and is convexly equipped with the spring support of support elastomeric element, and the resilient seat is on bonnet
Side.
7. water attack release valve as claimed in claim 6, it is characterised in that：The bonnet include with valve body coordinate flat part with
And the host cavity to be formed is upwardly extended from flat part, be provided with the flat part with auxiliary valve core sealing coordinate the second valve seat,
The second sealing ring on the second valve seat and on flat part and fix the fixed cover of the second sealing ring, the bullet
Property part and resilient seat are inside host cavity.
8. water attack release valve as claimed in claim 7, it is characterised in that：It is provided with above the host cavity and compresses elastomeric element
Pressing plate, the pressing plate extends downwardly the guidance part stretched into inside host cavity, and the elastomeric element is located inside guidance part.
9. water attack release valve as claimed in claim 8, it is characterised in that：The throttling rod penetrates host cavity above pressing plate
And auxiliary valve core, the throttling rod coordinate with auxiliary valve core screw thread, the throttling rod is provided with the phase positioned at axially extending bore and radial direction through hole
Taper adjustment portion at friendship.
10. water attack release valve as claimed in claim 9, it is characterised in that：It is provided with above the pressing plate and matches somebody with somebody with throttling rod screw thread
The adjusting nut of conjunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720748067.2U CN207145722U (en) | 2017-06-26 | 2017-06-26 | A kind of water attack release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720748067.2U CN207145722U (en) | 2017-06-26 | 2017-06-26 | A kind of water attack release valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207145722U true CN207145722U (en) | 2018-03-27 |
Family
ID=61671486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720748067.2U Active CN207145722U (en) | 2017-06-26 | 2017-06-26 | A kind of water attack release valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207145722U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191653A (en) * | 2017-06-26 | 2017-09-22 | 安徽红星阀门有限公司 | A kind of water attack release valve |
| CN108662154A (en) * | 2018-05-22 | 2018-10-16 | 南通市力沛流体阀业有限公司 | One kind being conveniently operated type shut-off valve |
| CN114215930A (en) * | 2021-12-20 | 2022-03-22 | 海南核电有限公司 | Pipeline valve |
-
2017
- 2017-06-26 CN CN201720748067.2U patent/CN207145722U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107191653A (en) * | 2017-06-26 | 2017-09-22 | 安徽红星阀门有限公司 | A kind of water attack release valve |
| CN108662154A (en) * | 2018-05-22 | 2018-10-16 | 南通市力沛流体阀业有限公司 | One kind being conveniently operated type shut-off valve |
| CN114215930A (en) * | 2021-12-20 | 2022-03-22 | 海南核电有限公司 | Pipeline valve |
| CN114215930B (en) * | 2021-12-20 | 2024-06-11 | 海南核电有限公司 | Pipeline valve |
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