CN207906538U - Double dampings are without diaphragm high pressure counterbalance valve - Google Patents
Double dampings are without diaphragm high pressure counterbalance valve Download PDFInfo
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- CN207906538U CN207906538U CN201820018665.9U CN201820018665U CN207906538U CN 207906538 U CN207906538 U CN 207906538U CN 201820018665 U CN201820018665 U CN 201820018665U CN 207906538 U CN207906538 U CN 207906538U
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- main
- auxiliary
- valve
- valve body
- spring
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Abstract
The utility model is related to a kind of double dampings without diaphragm high pressure counterbalance valve, including main valve body, auxiliary valve body, main valve plug, auxiliary valve core, depressurize cylinder, spool pressing plate, auxiliary spring, main spring and main spring gland, auxiliary valve body is arranged in main valve body, decompression cylinder lower end is connect with main valve body, upper end is connect with main spring gland, main valve plug setting is in decompression cylinder, main valve plug lower end seals or detaches the keying for realizing counterbalance valve with auxiliary valve body, main valve plug upper end is connect with auxiliary valve core, auxiliary valve core upper end is connect with spool pressing plate, main spring is set between spool pressing plate and main spring gland, auxiliary spring is set between auxiliary valve core and main valve plug.Compared with prior art, inside the utility model other than providing the main spring of spool rebound, there are one the auxiliary springs for providing damping.Release portion of energy is absorbed using auxiliary spring, it is possible thereby to which alleviating spool opens the speed being closed, and makes the pulse generated by pump in valve body more smooth, significantly improves the performance of counterbalance valve.
Description
Technical field
The utility model is related to a kind of counterbalance valves, more particularly, to a kind of double dampings without diaphragm high pressure counterbalance valve.
Background technology
When pipeline and tankage pressure transient, needs to install counterbalance valve to keep pipe net pressure maitamce, make
Pump can keep normal flow to export.And in positive displacement pump outlet end, medium due to gravity or other effect will produce siphon or
Phenomena such as water hammer, and therefore lead to the fluctuation of pipe network system flow and pressure.And counterbalance valve works as pipe by built-in spring force
When net system pressure is smaller than setting pressure, spool blocking pipeline under the action of built-in spring force reduces flow area；
When pipe network system pressure is bigger than setting pressure, spool is built spring opening again, increases flow area, therefore counterbalance valve
Siphon can effectively be cut down and flow that water hammer is brought and pressure oscillation.
Common counterbalance valve has and only a set of spring-damp system, and in the discharge stroke of pump, the open-top spool of liquid passes through
Counterbalance valve；In the induction stroke of pump, spool closes access due to spring force so that setting pressure is maintained between pump and counterbalance valve
Power.
But during routine use, especially in the pipe-line system for having used positive displacement pump, counterbalance valve can be with appearance
Each stroke of product pump quickly opens and closes, and the stroke speed of positive displacement pump is all hundreds of or even thousands of turns, this makes
The rate of wear of counterbalance valve is greatly speeded up, and reduces the service life of counterbalance valve.And if causing since installation site is improper
Counterbalance valve resonates with pipe network system, or even can damage counterbalance valve and cause danger.The scheme of generally use is in pipeline at present
Pulsation damper is installed in system, when pulsation damper is mounted between pump and counterbalance valve, by absorption pump and counterbalance valve it
Between peak flow, the rate of wear of counterbalance valve can be greatly reduced.
But how not cut down the technical side of the rate of wear of counterbalance valve in the pipeline of acrotism fluctuation dampers at present
Case.
Utility model content
The purpose of this utility model is exactly to provide a kind of double damping nothings to overcome the problems of the above-mentioned prior art
Diaphragm high pressure counterbalance valve.
The utility model is to increase a set of spring damping in counterbalance valve, can be cut down in the pipeline of acrotism fluctuation dampers
The rate of wear of counterbalance valve extends the service life of counterbalance valve, safeguards and is more convenient, use is simpler.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of pair of damping is without diaphragm high pressure counterbalance valve, including main valve body, auxiliary valve body, main valve plug, auxiliary valve core, decompression cylinder, valve
Core pressing plate, auxiliary spring, main spring and main spring gland, the auxiliary valve body are arranged in main valve body, the decompression cylinder lower end and master
Valve body connects, and upper end is connect with main spring gland, and the main valve plug setting is in decompression cylinder, the main valve plug lower end and auxiliary valve body
Sealing or separation realize that the keying of counterbalance valve, the main valve plug upper end are connect with auxiliary valve core, the auxiliary valve core upper end and spool pressure
Plate connects, and main spring is arranged between spool pressing plate and main spring gland, and secondary bullet is arranged between the auxiliary valve core and main valve plug
Spring.
In one embodiment of the utility model, medium inlet and media outlet are set on the main valve body, given an account of
It is connected to, is connected to inside the media outlet and auxiliary valve body, the main valve plug lower end and auxiliary valve body are close inside matter entrance and auxiliary valve body
Feng Shi, the medium inlet separate with media outlet, and counterbalance valve is in off state, and the main valve plug lower end is detached with auxiliary valve body
When, the medium inlet is communicated with media outlet, and counterbalance valve is open state.
In one embodiment of the utility model, the auxiliary valve core lower end is provided with slot, and the main valve plug upper end is inserted
Enter in the slot of auxiliary valve core, and auxiliary spring is set between auxiliary valve core and main valve plug.
In one embodiment of the utility model, sealing ring is provided between the auxiliary valve core and decompression cylinder.
In one embodiment of the utility model, sealing ring baffle is equipped on sealing ring.
In one embodiment of the utility model, the main valve plug is equipped with the valve for limiting main valve plug upper and lower position
Core backing pin.
In one embodiment of the utility model, regulation handle is provided on the main spring gland.
In one embodiment of the utility model, the decompression cylinder lower end is threadedly coupled with main valve body, upper end and main bullet
Spring gland is threadedly coupled.
At the end of excluding stroke nearly, positive displacement pump starts to extract medium, and counterbalance valve downstream pipe pressure is more than upstream, this
When main spring discharge elastic force, auxiliary valve core and main valve plug are subdued, auxiliary spring by compressed can absorb part energy.
When induction stroke nearly at the end of, positive displacement pump begins pumping medium, and counterbalance valve downstream pipe pressure is less than upstream, this
When main spring absorb energy, main valve plug opened by medium, moves up, detached with auxiliary valve body, and auxiliary spring can discharge a part of energy
Amount.It is possible thereby to which alleviating spool opens the speed being closed, and make the pulse generated by pump in valve body more smooth, significantly carries
The performance of highback pressure valve.
The counterbalance valve of the utility model can be used for controlling the fluids such as empty gas and water, steam, various non-corrosive media, oil product
Flowing.
Compared with prior art, inside the utility model other than providing the main spring of spool rebound, there are one provide
The auxiliary spring of damping.Release portion of energy is absorbed using auxiliary spring, it is possible thereby to alleviating spool opens the speed being closed, and
So that the pulse generated by pump in valve body is more smooth, the performance of counterbalance valve is significantly improved.
Description of the drawings
Fig. 1 is double main view schematic cross-sectional views of the damping without diaphragm high pressure counterbalance valve in embodiment 1；
Fig. 2 is the faces B-B schematic cross-sectional view in Fig. 1.
Shown in figure label：1- main valve bodies, 2- auxiliary valve bodies, 3- main valve plugs, 4- auxiliary valve cores, 5- spool backing pins, 6- depressurize cylinder,
7- sealing rings, 8- spool pressing plates, 9- sealing ring baffles, 10- auxiliary springs, 11- main springs, 12- main spring glands, 13- adjust hand
Handle, the medium inlets 14-, 15- media outlets.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
A kind of double damping is without diaphragm high pressure counterbalance valve, as shown in Figure 1 and Figure 2, including main valve body 1, auxiliary valve body 2, main valve plug 3,
Auxiliary valve core 4, decompression cylinder 6, spool pressing plate 8, auxiliary spring 10, main spring 11 and main spring gland 12, auxiliary valve body 2 are arranged in main valve body
In 1,6 lower end of decompression cylinder is connect with main valve body 1, and upper end is connect with main spring gland 12, and the setting of main valve plug 3 is main in decompression cylinder 6
3 lower end of spool seals or detaches the keying for realizing counterbalance valve with auxiliary valve body 2, and 3 upper end of main valve plug is connect with auxiliary valve core 4, auxiliary valve core 4
Upper end is connect with spool pressing plate 8, main spring 11 is arranged between spool pressing plate 8 and main spring gland 12, in auxiliary valve core 4 and main valve
Auxiliary spring 10 is set between core 3.
In the present embodiment, medium inlet 14 and media outlet 15 be set on main valve body 1, medium inlet 14 in auxiliary valve body 2
Portion's connection, media outlet 15 and 2 inside of auxiliary valve body are connected to, when 3 lower end of main valve plug is sealed with auxiliary valve body 2, medium inlet 14 and Jie
15 partition of matter outlet, counterbalance valve is in off state, when 3 lower end of main valve plug is detached with auxiliary valve body 2, medium inlet 14 and media outlet
15 communicate, and counterbalance valve is open state.
In the present embodiment, 4 lower end of auxiliary valve core is provided with slot, and 3 upper end of main valve plug is inserted into the slot of auxiliary valve core 4, and secondary
Auxiliary spring 10 is set between spool 4 and main valve plug 3.It is provided with sealing ring 7 between auxiliary valve core 4 and decompression cylinder 6.On sealing ring 4
Equipped with sealing ring baffle 9.Main valve plug 3 is equipped with the spool backing pin 5 for limiting 3 upper and lower position of main valve plug.Main spring gland 12
On be provided with regulation handle 13.6 lower end of decompression cylinder is threadedly coupled with main valve body 1, and upper end is threadedly coupled with main spring gland 12.
At the end of excluding stroke nearly, positive displacement pump starts to extract medium, and counterbalance valve downstream pipe pressure is more than upstream, this
When main spring discharge elastic force, auxiliary valve core and main valve plug are subdued, auxiliary spring by compressed can absorb part energy.
When induction stroke nearly at the end of, positive displacement pump begins pumping medium, and counterbalance valve downstream pipe pressure is less than upstream, this
When main spring absorb energy, main valve plug opened by medium, moves up, detached with auxiliary valve body, and auxiliary spring can discharge a part of energy
Amount.It is possible thereby to which alleviating spool opens the speed being closed, and make the pulse generated by pump in valve body more smooth, significantly carries
The performance of highback pressure valve.
The counterbalance valve of the utility model can be used for controlling the fluids such as empty gas and water, steam, various non-corrosive media, oil product
Flowing.
Practicality can be understood and used the above description of the embodiments is intended to facilitate those skilled in the art
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (8)
1. a kind of double dampings are without diaphragm high pressure counterbalance valve, which is characterized in that including main valve body (1), auxiliary valve body (2), main valve plug
(3), auxiliary valve core (4), decompression cylinder (6), spool pressing plate (8), auxiliary spring (10), main spring (11) and main spring gland (12), institute
Auxiliary valve body (2) setting is stated in main valve body (1), the decompression cylinder (6) lower end is connect with main valve body (1), upper end and main spring pressure
Cover (12) connection, the main valve plug (3) setting in decompression cylinder (6), main valve plug (3) lower end sealed with auxiliary valve body (2) or
Separation realizes that the keying of counterbalance valve, main valve plug (3) upper end are connect with auxiliary valve core (4), auxiliary valve core (4) upper end and spool
Pressing plate (8) connects, and main spring (11) is arranged between spool pressing plate (8) and main spring gland (12), in the auxiliary valve core (4) and
Auxiliary spring (10) is set between main valve plug (3).
2. a kind of double dampings according to claim 1 are without diaphragm high pressure counterbalance valve, which is characterized in that the main valve body (1)
It is connected to inside upper setting medium inlet (14) and media outlet (15), the medium inlet (14) and auxiliary valve body (2), the medium
It is connected to inside outlet (15) and auxiliary valve body (2), when main valve plug (3) lower end is sealed with auxiliary valve body (2), the medium inlet
(14) separating with media outlet (15), counterbalance valve is in off state, when main valve plug (3) lower end is detached with auxiliary valve body (2), institute
It states medium inlet (14) to communicate with media outlet (15), counterbalance valve is open state.
3. a kind of double dampings according to claim 1 are without diaphragm high pressure counterbalance valve, which is characterized in that the auxiliary valve core (4)
Lower end is provided with slot, and main valve plug (3) upper end is inserted into the slot of auxiliary valve core (4), and auxiliary valve core (4) and main valve plug (3)
Between setting auxiliary spring (10).
4. a kind of double dampings according to claim 1 are without diaphragm high pressure counterbalance valve, which is characterized in that the auxiliary valve core (4)
It is provided with sealing ring (7) between decompression cylinder (6).
5. a kind of double dampings according to claim 4 are without diaphragm high pressure counterbalance valve, which is characterized in that on sealing ring (7)
Equipped with sealing ring baffle (9).
6. a kind of double dampings according to claim 1 are without diaphragm high pressure counterbalance valve, which is characterized in that the main valve plug (3)
It is equipped with the spool backing pin (5) for limiting main valve plug (3) upper and lower position.
7. a kind of double dampings according to claim 1 are without diaphragm high pressure counterbalance valve, which is characterized in that the main spring gland
(12) regulation handle (13) is provided on.
8. a kind of double dampings according to claim 1 are without diaphragm high pressure counterbalance valve, which is characterized in that the decompression cylinder (6)
Lower end is threadedly coupled with main valve body (1), and upper end is threadedly coupled with main spring gland (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018665.9U CN207906538U (en) | 2018-01-05 | 2018-01-05 | Double dampings are without diaphragm high pressure counterbalance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018665.9U CN207906538U (en) | 2018-01-05 | 2018-01-05 | Double dampings are without diaphragm high pressure counterbalance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207906538U true CN207906538U (en) | 2018-09-25 |
Family
ID=63566820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820018665.9U Expired - Fee Related CN207906538U (en) | 2018-01-05 | 2018-01-05 | Double dampings are without diaphragm high pressure counterbalance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207906538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180303A (en) * | 2018-01-05 | 2018-06-19 | 米顿罗工业设备（上海）有限公司 | A kind of double dampings are without diaphragm high pressure counterbalance valve |
-
2018
- 2018-01-05 CN CN201820018665.9U patent/CN207906538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180303A (en) * | 2018-01-05 | 2018-06-19 | 米顿罗工业设备（上海）有限公司 | A kind of double dampings are without diaphragm high pressure counterbalance valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180925 Termination date: 20220105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |