CN203214995U - Unloading type gas pressure reducing valve - Google Patents
Unloading type gas pressure reducing valve Download PDFInfo
- Publication number
- CN203214995U CN203214995U CN 201320229831 CN201320229831U CN203214995U CN 203214995 U CN203214995 U CN 203214995U CN 201320229831 CN201320229831 CN 201320229831 CN 201320229831 U CN201320229831 U CN 201320229831U CN 203214995 U CN203214995 U CN 203214995U
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- China
- Prior art keywords
- pressure
- valve
- gas
- reducing valve
- pressure reducing
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- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an unloading type gas pressure reducing valve, which comprises a valve body. The unloading type gas pressure reducing valve is characterized in that a bib is arranged in a gas channel in the valve body and is used for controlling on-off, and the upper part of the valve body is provided with a pressure sensing element; a gas channel is arranged between a lower chamber and a low-pressure chamber of the pressure sensing element, and the pressure sensing element is connected with the bib through a push rod; a regulating spring and a return spring are arranged to control the movement of the push rod; and an exhausting device is arranged to control exhausting. Compared with the prior art, the unloading type gas pressure reducing valve has characteristics of large pressure of high-pressure gas, small pressure tolerance of lower-pressure gas, large flow, high reliability, long service life and the like, therefore can be widely applied to fuel systems of airplanes and environmental control systems, and can further be popularized to the industries and fields of spaceflight, chariots, ships, chemical engineering and the like.
Description
Technical field
The utility model relates to a kind of gas pressure reducer.
Background technique
The oil-fired system of aircraft, environmental control system have many for the reduction valve of high pressure air reducing to low pressure authorized pressure gas, and reduction valve has the function of automatic control low-pressure gas pressure.Development along with type aircraft, the high-pressure gas pressure of aircraft fuel system, environmental control system significantly improves, the pressure tolerance of low-pressure gas is constantly dwindled, flow significantly improves, and existing gas pressure reducer, its high-pressure gas pressure is little, the pressure tolerance of low-pressure gas is big, flow is little, reliability is not high, the life-span short.Can not meet the needs of.
Summary of the invention
The balanced pneumatic pressure reducing valve of advantages such as the pressure that the purpose of this utility model provides pressurized gas is big, the pressure tolerance of low-pressure gas is little, flow big, high reliability, long lifetime is to remedy the deficiency of prior art.
The utility model for the technological scheme that realizes purpose is: balanced pneumatic pressure reducing valve, comprise valve body, it is characterized in that: valve control break-make is arranged in the gas channel in the valve body, valve body top is provided with pressure element, between pressure element cavity of resorption and the low-pressure cavity gas channel is arranged, pressure element is connected by push rod with valve, is provided with the movement of Regulation spring control pressure element; Be provided with the movement of Returnning spring control valve; Be provided with venting gas appliance control exhaust.
Optimize, valve is shaped as sphere.
The beneficial effects of the utility model are: the utility model balanced pneumatic pressure reducing valve is compared with conventional art, little, the characteristics such as flow big, high reliability, long lifetime of the pressure that the structure of balanced pneumatic pressure reducing valve has pressurized gas pressure tolerance big, low-pressure gas, thereby can be widely used in aircraft fuel system, environmental control system, and can further be generalized to industry and fields such as space flight, battlebus, boats and ships and chemical industry.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
Embodiment:
Gas Balanced reducing valve of the present utility model mainly comprises component such as regulating plug screw 1, Regulation spring 2, pressure element 3, push rod 4, valve base 5, valve 6, Returnning spring 7, pressure-inducting device 8, venting gas appliance 9, valve body 10.
When the space of pressurized gas P1 between passage a, b and valve base 5 and valve 6 enters low-pressure cavity c, portion gas enters pressure element 3 cavity of resorptions through pressure-inducting device 8 and gas channel d, when reaching certain pressure, pressure element 3 begins to move up, compression adjustment spring 2, under Returnning spring 7 effects, it is mobile together that valve 6 is followed pressure element 3 simultaneously.Like this, under the effect of two spring forces, valve 6, valve base 5, pressure element 3 form an automatic voltage regulating system.When low-pressure cavity c gas pressure P2 reaches specified value, the sphere of valve 6 contact valve base 5, thus stopping air inlet, it is stable that low-pressure cavity c gas pressure keeps.When low-pressure cavity c gas has consumption, low-pressure cavity c gas pressure descends, pressure element 3 is mobile under the spring force effect, the sphere of valve 6 is pushed away valve base 5, pressurized gas P1 reenters, make low-pressure cavity c gas pressure be increased to specified value, the sphere of valve 6 contacts again with valve base 5, stops air inlet.Like this, the sphere of valve 6 contacts, leaves with valve base 5, and constantly circulation guarantees that low-pressure cavity c gas pressure is stable.
Venting gas appliance 9 is discharged to atmosphere with the gas that spherical sealing pair may leak, thereby realizes that low-pressure cavity c gas pressure is stable.
Claims (2)
1. balanced pneumatic pressure reducing valve, comprise valve body, it is characterized in that: valve control break-make is arranged in the gas channel in the valve body, valve body top is provided with pressure element, between pressure element cavity of resorption and the low-pressure cavity gas channel is arranged, pressure element is connected by push rod with valve, is provided with the movement of Regulation spring control pressure element; Be provided with the movement of Returnning spring control valve; Be provided with venting gas appliance control exhaust.
2. balanced pneumatic pressure reducing valve according to claim 1, it is characterized in that: valve is shaped as sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229831 CN203214995U (en) | 2013-04-28 | 2013-04-28 | Unloading type gas pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320229831 CN203214995U (en) | 2013-04-28 | 2013-04-28 | Unloading type gas pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214995U true CN203214995U (en) | 2013-09-25 |
Family
ID=49204534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320229831 Expired - Lifetime CN203214995U (en) | 2013-04-28 | 2013-04-28 | Unloading type gas pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214995U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992306A (en) * | 2016-08-04 | 2017-07-28 | 上海瀚氢动力科技有限公司 | A kind of combination valve for fuel cell |
| CN108087602A (en) * | 2017-12-15 | 2018-05-29 | 上海瀚氢动力科技有限公司 | A kind of integrated pressure reducing valve |
| CN112443690A (en) * | 2020-11-13 | 2021-03-05 | 沈阳航天新光集团有限公司 | Pressure reducer of positive unloading type gas path system |
-
2013
- 2013-04-28 CN CN 201320229831 patent/CN203214995U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106992306A (en) * | 2016-08-04 | 2017-07-28 | 上海瀚氢动力科技有限公司 | A kind of combination valve for fuel cell |
| CN106992306B (en) * | 2016-08-04 | 2019-08-23 | 上海瀚氢动力科技有限公司 | A kind of combination valve for fuel cell |
| CN108087602A (en) * | 2017-12-15 | 2018-05-29 | 上海瀚氢动力科技有限公司 | A kind of integrated pressure reducing valve |
| CN112443690A (en) * | 2020-11-13 | 2021-03-05 | 沈阳航天新光集团有限公司 | Pressure reducer of positive unloading type gas path system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |
|
| CX01 | Expiry of patent term |