CN102537452B - A kind of high pressure buffer valve - Google Patents
A kind of high pressure buffer valve Download PDFInfo
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- CN102537452B CN102537452B CN201110445322.3A CN201110445322A CN102537452B CN 102537452 B CN102537452 B CN 102537452B CN 201110445322 A CN201110445322 A CN 201110445322A CN 102537452 B CN102537452 B CN 102537452B
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- valve
- spool
- high pressure
- pressure
- pressure buffer
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Abstract
The present invention relates to valve, disclose a kind of high pressure buffer valve, discharging type structure, by valve body [1], spool [2], valve gap [3], pad [4], spring [5], O RunddichtringO [6] and [7] are constituted.The present invention solves impact excessive on the impulsive force such as valve downstream, pipeline during high-pressure fluid startup work, it is particularly possible to prevent the startup impulsive force of gas pressure reducer excessive and vibration problem.
Description
Technical field
The invention belongs to a kind of valve, relate to fluid machinery and control element, be a kind of trimmer valve having and preventing gases at high pressure startup impulsive force excessive.
Background technology
High pressure buffer valve is installed on high-pressure gas circuit, when preventing system start-up from working, impulsive force is excessive and valve downstream or pipeline produce damaging influence, due to high pressure buffer valve delicate structure, it is similar to pipeline two and leads to structure, it is easy to pipe-line layout, therefore, it is particularly well-suited to spacecraft propulsion device gas circuit extrusion system, it is particularly suitable for when gas supply source storage pressure is higher than 35MPa, before being arranged on air relief valve, after electric blasting valve or high-pressure solenoid valve.
Summary of the invention
It is an object of the invention to alleviate gases at high pressure and start impulsive force, prevent the valve stress such as air relief valve excessive and destroy.
A kind of high pressure buffer valve of the present invention, discharging type structure, by valve body [1], spool [2], valve gap [3], pad [4], spring [5], O RunddichtringO [6] and [7] are constituted.Before high pressure buffer valve work, due to spring [5] power effect, spool [2] is in the closed position, the aperture that gases at high pressure slow transit through on spool [2] flows to downstream plenum, when downstream chamber pressure reaches certain pressure, the power on spool [2] that acts on overcomes spring [5] power to be fully opened by spool [2], and high pressure buffer valve completes to start work.
Compared with existing trimmer valve, the present invention have following innovation with and prominent progress: 1) novel structure, there is high pressure unloading chamber, balance inlet high pressure gas and act on spool
Power；2) spool 2) open after, keep maximum position, will not produce fluid pressure loss, and high
Pressure trimmer valve works not by flow effect, and spool will not vibrate.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram during high pressure buffer valve of the present invention closedown
Fig. 2 is structural principle schematic diagram during high pressure buffer valve of the present invention unlatching
Fig. 3 is high pressure buffer valve discharging type structural principle schematic diagram of the present invention
Symbol logo:
Signal separating surface: at the cutting edge sealing surface of housing [1] and spool [2], the face of cylinder of spool activity direction；P1: sealing surface inlet pressure；P2: sealing surface outlet pressure；F: spring is applied to the elastic force on spool [2].
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the present invention is further detailed explanation.
Fig. 1 is the installation diagram of high pressure buffer valve of the present invention, as shown in the illustrated embodiment of fig. 1, this device includes: valve body 1, with importing and exporting male connection, valve body 1 inner chamber is from valve seat, firmly seal with spool 2, on valve body 1, female thread and valve gap 3 are spirally connected, spool 2 and spring 5 are contained in valve body 1 and valve gap 3, the elastic force of spring 5 is pushed down spool and is in close contact with the inner valve seat of valve body 1, and pad 4 and O RunddichtringO 6 prevents from leaking gas between valve body 1 and valve gap 3, and O RunddichtringO 7 prevents from leaking gas between spool 2 and valve gap 3, this seal form is all two pass, plays good sealing function.
Fig. 2 is schematic diagram during high pressure buffer valve of the present invention work, the work process of the present invention is described, as shown in Figure 1 in conjunction with Fig. 1 and Fig. 2, before work, spool 2 is in the closed position, when high-pressure pneumatic system works, gases at high pressure are instantaneous rushes at trimmer valve, gases at high pressure are buffered valve to be stopped, gas is slowly filled to trimmer valve downstream plenum, after downstream plenum builds pressure by the aperture on spool 2, spool 2 is fully opened, working media circulates, as in figure 2 it is shown, trimmer valve has worked.
Fig. 3 is high pressure buffer valve discharging type structural principle schematic diagram of the present invention, as shown in Figure 3, this structure makes the dynamic balance that inlet high pressure P1 is applied on spool [2], trimmer valve spool 2 is only by outlet pressure P2 (opening force) and spring force F (closing forces), when P2 is more than F, spool [2] is opened, and when P2 is less than F, spool is closed.Discharging type primarily serves the purpose of and makes inlet pressure change can ignore the impact of whole trimmer valve, and reduces spring design power, alleviates construction weight, is particularly well-suited to weight demands and high work system.
As it has been described above, the present invention utilizes trimmer valve work characteristics, and discharging type structure, solve impacting with high pressure problem, it is to avoid the power that is hit such as valve downstream and pipeline is excessive and destroy；Solve the light minor issue of trimmer valve structure, may apply to weight, air-channel system that volume requirement is tight, such as space flight and aviation electromotor are advanced gas circuit dynamical system.
Claims (1)
1. a high pressure buffer valve: this structure includes: valve body (1), spool (2), valve gap (3), pad (4), spring (5), an O RunddichtringO (6), the 2nd O RunddichtringO (7), it is characterised in that: high-pressure medium slowly flows to trimmer valve downstream by the aperture on spool (2), when downstream pressure arrives certain pressure, spool (2) fully opens；
Before high pressure buffer valve startup work, spool (2) is in the closed position, and high-pressure medium sluggish flow supplies, and reduces the impact of downstream pipe and valve, and after startup, spool (2) fully opens, and will not bring fluid pressure loss；
High pressure buffer valve is designed with discharging type structure, utilizes mechanical balance principle, and the power acted on by inlet high pressure on spool (2) sheds, and the unlatching of spool (2) is not changed by inlet high pressure to be affected；
High pressure buffer valve carrys out the speed of governing response time by changing the upper hole diameter of spool (2), regulates the size of outlet pressure when spool (2) is opened by the aperture or spring (5) power changing valve body (1) upper valve base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110445322.3A CN102537452B (en) | 2011-12-27 | 2011-12-27 | A kind of high pressure buffer valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110445322.3A CN102537452B (en) | 2011-12-27 | 2011-12-27 | A kind of high pressure buffer valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102537452A CN102537452A (en) | 2012-07-04 |
| CN102537452B true CN102537452B (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110445322.3A Active CN102537452B (en) | 2011-12-27 | 2011-12-27 | A kind of high pressure buffer valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN102537452B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889423B (en) * | 2012-09-24 | 2014-08-20 | 上海空间推进研究所 | Small pressure reducing valve and pressure reducing device in high-pressure high-flow fluid system |
| CN105889163A (en) * | 2015-01-26 | 2016-08-24 | 大连伟达液压技术有限公司 | Hydraulic valve |
| CN105987206A (en) * | 2015-01-30 | 2016-10-05 | 浙江三花股份有限公司 | Stop valve |
| CN104930004B (en) * | 2015-05-27 | 2017-01-25 | 北京航天发射技术研究所 | Unidirectional ventilation and reverse overpressure release available cushion valve |
| CN105402456B (en) * | 2015-08-21 | 2021-01-26 | 中国人民解放军国防科学技术大学 | Valve core of gas pressure reducer |
| CN105422868B (en) * | 2015-08-21 | 2020-10-16 | 中国人民解放军国防科技大学 | Pneumatic control type gas pressure reducer |
| CN105485385A (en) * | 2015-12-29 | 2016-04-13 | 天津华科螺杆泵技术有限公司 | Safety valve and two-screw pump employing same |
| CN108799530A (en) * | 2018-07-09 | 2018-11-13 | 盐城瑞德石化机械有限公司 | Simple flat plate valve |
| CN110397771B (en) * | 2019-07-20 | 2020-12-01 | 防城港澳加粮油工业有限公司 | Spring safety valve that life is high |
| CN110762239B (en) * | 2019-11-21 | 2021-07-20 | 西安航天动力研究所 | High-pressure unloading type gunpowder gas actuated valve |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201615269U (en) * | 2009-12-24 | 2010-10-27 | 中业阀门集团有限公司 | Reverse-flow internal spray hole depressurizing and pressure-stabilizing valve |
| CN102042432A (en) * | 2010-12-10 | 2011-05-04 | 北京工业大学 | Direct-acting water pressure overflow valve with damping piston |
| CN202629225U (en) * | 2011-12-27 | 2012-12-26 | 上海空间推进研究所 | A valve |
-
2011
- 2011-12-27 CN CN201110445322.3A patent/CN102537452B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201615269U (en) * | 2009-12-24 | 2010-10-27 | 中业阀门集团有限公司 | Reverse-flow internal spray hole depressurizing and pressure-stabilizing valve |
| CN102042432A (en) * | 2010-12-10 | 2011-05-04 | 北京工业大学 | Direct-acting water pressure overflow valve with damping piston |
| CN202629225U (en) * | 2011-12-27 | 2012-12-26 | 上海空间推进研究所 | A valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102537452A (en) | 2012-07-04 |
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