CN108180303A - A kind of double dampings are without diaphragm high pressure counterbalance valve - Google Patents
A kind of double dampings are without diaphragm high pressure counterbalance valve Download PDFInfo
- Publication number
- CN108180303A CN108180303A CN201810012181.8A CN201810012181A CN108180303A CN 108180303 A CN108180303 A CN 108180303A CN 201810012181 A CN201810012181 A CN 201810012181A CN 108180303 A CN108180303 A CN 108180303A
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- CN
- China
- Prior art keywords
- main
- auxiliary
- valve
- valve body
- spring
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 title claims abstract description 19
- 230000006837 decompression Effects 0.000 claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 12
- 230000033228 biological regulation Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000011144 upstream manufacturing Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009972 noncorrosive effect Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates 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 is arranged 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, other than the internal main spring in addition to providing spool rebound of the present invention, 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 so that the pulse generated in valve body by pump is more smooth, significantly improves the performance of counterbalance valve.
Description
Technical field
The present invention relates to a kind of counterbalance valve, more particularly, to a kind of double dampings without diaphragm high pressure counterbalance valve.
Background technology
When pipeline and tankage pressure transient, need to install counterbalance valve to keep pipe net pressure maitamce, make
Pump can keep normal flow to export.And in the positive displacement pump port of export, medium due to gravity or other effects can generate 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
It can effectively cut down siphon 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, particularly 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 causes
The rate of wear of counterbalance valve is greatly speeded up, and reduces the service life of counterbalance valve.And if cause since installation site is improper
The counterbalance valve counterbalance valve that resonates or even can damage with pipe network system causes 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.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of double dampings without diaphragm
High pressure counterbalance valve.
The present invention is to increase a set of spring damping in counterbalance valve, can cut down back pressure in the pipeline of acrotism fluctuation dampers
The rate of wear of valve extends the service life of counterbalance valve, safeguards and is more convenient, use is simpler.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of double dampings are 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 is arranged in decompression cylinder, the main valve plug lower end and auxiliary valve body
The keying of counterbalance valve is realized in sealing or separation, and the main valve plug upper end is connect with auxiliary valve core, the auxiliary valve core upper end and spool pressure
Plate connects, and main spring is set between spool pressing plate and main spring gland, and secondary bullet is set between the auxiliary valve core and main valve plug
Spring.
In one embodiment of the present invention, medium inlet and media outlet, the medium is set to enter on the main valve body
It connects inside mouth and auxiliary valve body, is connected inside the media outlet and auxiliary valve body, when the main valve plug lower end is sealed with auxiliary valve body,
The medium inlet separates with media outlet, and counterbalance valve is in off state, described when the main valve plug lower end is detached with auxiliary valve body
Medium inlet is communicated with media outlet, and counterbalance valve is opening.
In one embodiment of the present invention, the auxiliary valve core lower end is provided with slot, and the main valve plug upper end is inserted into secondary
In the slot of spool, and auxiliary spring is set between auxiliary valve core and main valve plug.
In one embodiment of the present invention, sealing ring is provided between the auxiliary valve core and decompression cylinder.
In one embodiment of the present invention, sealing ring baffle is equipped on sealing ring.
In one embodiment of the present invention, the main valve plug is equipped with the spool gear for limiting main valve plug upper-lower position
Pin.
In one embodiment of the present invention, regulation handle is provided on the main spring gland.
In one embodiment of the present invention, the decompression cylinder lower end is threadedly coupled with main valve body, upper end and main spring pressure
Lid is threadedly coupled.
At the end of stroke is excluded nearly, positive displacement pump starts to extract medium, and counterbalance valve downstream pipe pressure is more than upstream, this
When main spring release 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 so that the pulse generated in valve body by pump is more smooth, significantly carry
The performance of highback pressure valve.
The counterbalance valve of the present invention can be used for the stream of the fluids such as the empty gas and water of control, steam, various non-corrosive media, oil product
It is dynamic.
Compared with prior art, other than the internal main spring in addition to providing spool rebound of the present invention, there are one provide damping
Auxiliary spring.Release portion of energy is absorbed using auxiliary spring, it is possible thereby to which alleviating spool opens the speed being closed, and cause
The pulse generated in valve body by pump is more smooth, significantly improves the performance of counterbalance valve.
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 B-B faces 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- decompression cylinders,
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, 14- medium inlets, 15- media outlets.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
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 on 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 main valve plug 3 is arranged in decompression cylinder 6, main
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 set 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 connects, and media outlet 15 is connected with 2 inside of auxiliary valve body, and when 3 lower end of main valve plug is sealed with auxiliary valve body 2, medium inlet 14 is with being situated between
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 opening.
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.Sealing ring 7 is provided 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-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 stroke is excluded nearly, positive displacement pump starts to extract medium, and counterbalance valve downstream pipe pressure is more than upstream, this
When main spring release 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 so that the pulse generated in valve body by pump is more smooth, significantly carry
The performance of highback pressure valve.
The counterbalance valve of the present invention can be used for the stream of the fluids such as the empty gas and water of control, steam, various non-corrosive media, oil product
It is dynamic.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously can easily make these embodiments various modifications, and described herein general
Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to above-described embodiment, abilities
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be the present invention's
Within protection domain.
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
It states auxiliary valve body (2) to be arranged in main valve body (1), 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) is arranged in decompression cylinder (6), main valve plug (3) lower end sealed with auxiliary valve body (2) or
The keying of counterbalance valve is realized in separation, and main valve plug (3) upper end is connect with auxiliary valve core (4), auxiliary valve core (4) upper end and spool
Pressing plate (8) connects, and main spring (11) is set 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 upper that medium inlet (14) and media outlet (15) are set, it is connected inside the medium inlet (14) and auxiliary valve body (2), the medium
It is connected 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 opening.
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)
Sealing ring (7) is provided 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 (4)
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-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 |
|---|---|---|---|
| CN201810012181.8A CN108180303A (en) | 2018-01-05 | 2018-01-05 | A kind of double dampings are without diaphragm high pressure counterbalance valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810012181.8A CN108180303A (en) | 2018-01-05 | 2018-01-05 | A kind of double dampings are without diaphragm high pressure counterbalance valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108180303A true CN108180303A (en) | 2018-06-19 |
Family
ID=62549966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810012181.8A Pending CN108180303A (en) | 2018-01-05 | 2018-01-05 | A kind of double dampings are without diaphragm high pressure counterbalance valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108180303A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0823576A2 (en) * | 1996-08-05 | 1998-02-11 | Brueninghaus Hydromatik Gmbh | Hydraulic valve with pressure reduction and feeding function |
| US6964280B1 (en) * | 2002-04-03 | 2005-11-15 | Hydro-Gear Limited Partnership | Valve assembly for use in a hydraulic component |
| US20060112993A1 (en) * | 2004-12-01 | 2006-06-01 | Xingen Dong | Combination valve |
| CN201368240Y (en) * | 2009-02-18 | 2009-12-23 | 乐清市东风煤矿设备有限公司 | Safety valve |
| CN201568591U (en) * | 2009-12-30 | 2010-09-01 | 固安沃克流体控制有限公司 | Composite stop valve with double valve cores |
| JP2012180935A (en) * | 2012-04-10 | 2012-09-20 | Mitsubishi Electric Corp | Check valve, and hot water storing type hot water supplier using the same |
| CN202521007U (en) * | 2012-04-10 | 2012-11-07 | 巨隆集团芜湖兴隆液压有限公司 | Safety valve |
| CN104455597A (en) * | 2014-12-16 | 2015-03-25 | 中煤科工集团西安研究院有限公司 | Overshoot-limited fixed-value safety valve |
| CN205064958U (en) * | 2015-10-20 | 2016-03-02 | 德耐尔压缩机制造（上海）有限公司 | Pressure control valve |
| CN206257286U (en) * | 2016-12-15 | 2017-06-16 | 浙江安盛机械制造有限公司 | A kind of disposable valve body of Contiuum type |
| CN206449268U (en) * | 2017-01-12 | 2017-08-29 | 天津市国威给排水设备制造有限公司 | Rotary pressure-reducing valve |
| CN207906538U (en) * | 2018-01-05 | 2018-09-25 | 米顿罗工业设备（上海）有限公司 | Double dampings are without diaphragm high pressure counterbalance valve |
-
2018
- 2018-01-05 CN CN201810012181.8A patent/CN108180303A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0823576A2 (en) * | 1996-08-05 | 1998-02-11 | Brueninghaus Hydromatik Gmbh | Hydraulic valve with pressure reduction and feeding function |
| US6964280B1 (en) * | 2002-04-03 | 2005-11-15 | Hydro-Gear Limited Partnership | Valve assembly for use in a hydraulic component |
| US20060112993A1 (en) * | 2004-12-01 | 2006-06-01 | Xingen Dong | Combination valve |
| CN201368240Y (en) * | 2009-02-18 | 2009-12-23 | 乐清市东风煤矿设备有限公司 | Safety valve |
| CN201568591U (en) * | 2009-12-30 | 2010-09-01 | 固安沃克流体控制有限公司 | Composite stop valve with double valve cores |
| JP2012180935A (en) * | 2012-04-10 | 2012-09-20 | Mitsubishi Electric Corp | Check valve, and hot water storing type hot water supplier using the same |
| CN202521007U (en) * | 2012-04-10 | 2012-11-07 | 巨隆集团芜湖兴隆液压有限公司 | Safety valve |
| CN104455597A (en) * | 2014-12-16 | 2015-03-25 | 中煤科工集团西安研究院有限公司 | Overshoot-limited fixed-value safety valve |
| CN205064958U (en) * | 2015-10-20 | 2016-03-02 | 德耐尔压缩机制造（上海）有限公司 | Pressure control valve |
| CN206257286U (en) * | 2016-12-15 | 2017-06-16 | 浙江安盛机械制造有限公司 | A kind of disposable valve body of Contiuum type |
| CN206449268U (en) * | 2017-01-12 | 2017-08-29 | 天津市国威给排水设备制造有限公司 | Rotary pressure-reducing valve |
| CN207906538U (en) * | 2018-01-05 | 2018-09-25 | 米顿罗工业设备（上海）有限公司 | Double dampings are without diaphragm high pressure counterbalance valve |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180619 |