CN201269336Y - Gas pressure reducing valve - Google Patents
Gas pressure reducing valve Download PDFInfo
- Publication number
- CN201269336Y CN201269336Y CNU2008201217909U CN200820121790U CN201269336Y CN 201269336 Y CN201269336 Y CN 201269336Y CN U2008201217909 U CNU2008201217909 U CN U2008201217909U CN 200820121790 U CN200820121790 U CN 200820121790U CN 201269336 Y CN201269336 Y CN 201269336Y
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- pressure
- valve
- pressure regulation
- gas
- pneumatic
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Abstract
The utility model discloses an air pressure reducing valve, comprising a valve body, and an air inlet channel, a valve channel, an air outlet chamber, an air outlet channel, a valve core, a valve spring and a valve lever which are arranged in the valve body. The air pressure reducing valve is characterized in that the valve body is provided with a pneumatic pressure regulation chamber, a piston, a spring, and a pneumatic pressure regulation device therein, wherein, the pneumatic pressure regulation chamber is communicated with the air outlet chamber; the spring is arranged in the air outlet chamber and propped on the piston which is connected with the valve lever which is arranged in the air outlet chamber of the pressure regulation valve and fixedly connected with the valve core; pressure regulation air inlet holes are arranged on the wall of the pneumatic pressure regulation chamber; a pneumatic remote control device constituted by sequentially connecting a pressure regulation air outlet connecting tube, a pressure regulation air pressure rising control valve and a pressure regulation air inlet connecting tube is arranged outside the valve body; and the pressure regulation range can reach 1-25 MPa, and the pressure regulation accuracy can reach 1%, which realizes the remote control of the air pressure reducing valve and brings great application convenience.
Description
Technical field:
The utility model relates to a kind of valving, specifically is a kind of gas pressure reducer.
Background technique:
Gas pressure reducer be a kind of be high pressure air reducing the device of needed gas pressure, existing gas pressure reducer majority is to adopt outlet passageway of a gas-entered passageway, be provided with between gas-entered passageway and outlet passageway that a valve structure regulates and control air inflow what to reach the size of adjustments of gas pressure, and the active force that the aperture majority of control valve still adopts spring directly to be out of shape generation is regulated and is controlled, also have and in the passage of gas circuit, set up an atmospheric pressure cavity, in atmospheric pressure cavity, utilize diaphragm structure to regulate and control the size of valve, regulate and control air inflow to reach the pressure of the gas of giving vent to anger to reach.No matter be to adopt spring structure or adopt diaphragm structure, owing to be subjected to the influence of spring machining accuracy and size, range of regulation generally has only 1-7MPa, the pressure regulation precision is generally 5%, and diaphragm structure is because diaphragm deformation is little, and stroke is little, thereby its range of regulation, pressure regulation precision are restricted.In addition, be the execute-in-place control of handle type or switch gear-type in the operation control overwhelming majority, rather than adopt telecontrol, bring inconvenience in the use gas pressure reducer.
The model utility content:
The technical problems to be solved in the utility model is to provide a kind of pressure regulation range of regulation big, the gas pressure reducer that the pressure regulation precision is high; Another technical problem that the utility model also will solve is to realize the gas pressure reducer of telecontrol.
Technical solution of the present utility model is that a kind of gas pressure reducer with following structure is provided.This gas pressure reducer includes valve body, be arranged on gas-entered passageway in the valve body, the valve passage, outlet chamber, outlet passageway, be arranged on the spool of valve passway, be arranged on the shutter spring above the spool, be arranged in the outlet chamber and be connected valve rod below the spool, be characterized in valve body, being provided with pneumatic regulator, pneumatic regulator includes pneumatic pressure regulating cavity, be arranged on the piston in the pneumatic pressure regulating cavity, spring, pneumatic pressure regulating cavity communicates with outlet chamber, spring put in outlet chamber and roof pressure on piston, the valve rod of fixedlying connected with spool in piston and the reduction valve outlet chamber joins, and also is provided with pressure regulation gas inlet hole on the wall of pneumatic pressure regulating cavity chamber.
Another technical solution of the present utility model is, be outside equipped with pneumatic remote control at valve body, described pneumatic remote control is to draw adapter, pressure regulation gas lift pressure-controlled valve, pressure regulation gas by pressure regulation gas to introduce to take over and be connected in sequence, pressure regulation gas extraction channel on pressure regulation gas is drawn adapter and is arranged on valve body on the outlet passageway is connected, and the pressure regulation gas inlet hole that pressure regulation gas is introduced on adapter and the pneumatic regulator joins.
After adopting above structure, compared with prior art, the utility model gas pressure reducer has the following advantages:
1, owing to is provided with pneumatic regulator, spool in piston on the pneumatic regulator and the reduction valve outlet chamber flexibly connects, the receptance of gas in airtight pressure regulating cavity is good, by moving up and down of gas control piston, spool in the pneumatic piston control reduction valve moves the aperture size of the valve passage of regulating reduction valve, thereby its range of regulation can reach 1-25MPa, and pressure regulation precision height can reach 1%.
2, owing to be provided with pneumatic remote control, realized telecontrol, brought great convenience to use to gas pressure reducer.
As a kind of improvement of the present utility model, also be provided with damping plate and ring washer on the piston in the described pneumatic regulator;
Another kind as the body model utility improves, and the pressure regulation gas on the described pneumatic remote control is connected with pressure regulation gas pressure release control valve and pressure regulation gas relief tube on introducing and taking over.If, set pressure is too high, then by pressure regulation gas pressure release control valve control pressure release, the gas pressure of the pressure regulating cavity of pneumatic regulator is descended, and pneumatic piston moves down, and piston drives valve rod and spool moves down, spool and valve passage form aperture and reduce, gas pressure in the outlet chamber also reduces thereupon, until reaching setting pressure, then closes pressure regulation gas pressure release control valve.
Description of drawings:
Fig. 1 is the modular construction schematic representation of the utility model gas pressure reducer;
Fig. 2 is the pneumatic length of run control gear and the valve body annexation schematic representation of the utility model gas pressure reducer.
Shown in the figure: the 1st, valve body, the 11st, gas-entered passageway, the 12nd, valve passage, the 13rd, outlet chamber, the 14th, outlet passageway, the 15th, valve passage, the 16th, spool, the 17th, shutter spring, the 18th, valve rod, the 2nd, pneumatic regulator, 21 pneumatic pressure regulating cavities, the 22nd, piston, the 23rd, damping plate, the 24th, ring washer, the 25th, spring, the 26th, pressure regulation gas inlet hole, the 3rd, pneumatic remote control, 31 pressure regulation gas are drawn adapter, 32 pressure regulation gas lift pressure-controlled valves, 33 pressure regulation gas are introduced and are taken over, and the 34th, pressure regulation gas pressure release control valve, the 35th, pressure regulation gas relief tube, the 36th, pressure regulation gas extraction channel.
Embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Shown in the accompanying drawing 1, the utility model reduction valve includes and is disposed with gas-entered passageway 11, valve passage 12, outlet chamber 13, outlet passageway 14, valve passage 12 in valve body 1, the valve body and joins, be provided with shutter spring 17 with spool 16 for activity on spool 16, below spool 16, connect valve rod 18, valve rod 18 is arranged in the outlet chamber 13
Be provided with pneumatic regulator 2 in the valve body, pneumatic regulator 2 includes pneumatic pressure regulating cavity 21, pneumatic pressure regulating cavity 21 communicates with outlet chamber, piston 22, spring 25 are set in pneumatic pressure regulating cavity 21, connect damping plate 23 and ring washer 24 above the piston 22, damping plate 23 usefulness back-up rings 24 are fastened on the pneumatic piston 22.Spring 25 is arranged on outlet chamber 13 interior also roof pressures on piston 22, and the spool 16 in piston 22 and the reduction valve outlet chamber 13 flexibly connects, and also is provided with pressure regulation gas inlet hole 26 on the pneumatic pressure regulating cavity 21 chamber walls.
Shown in the accompanying drawing 2, be outside equipped with pneumatic remote control 3 at valve body, this device be by pressure regulation gas extraction channel 36, pressure regulation gas draw take over 31, pressure regulation gas lift pressure-controlled valve 32, pressure regulation gas introduce and take over 33 and be connected in sequence, pressure regulation gas is drawn and is taken over 31 and be connected with outlet passageway 11 on the valve body 1, the pressure regulation gas inlet hole 26 that pressure regulation gas is introduced on adapter 33 and the pneumatic regulator 2 joins, and introduces to take on 33 also being connected with pressure regulation gas pressure release control valve 34 and pressure regulation gas relief tube 35 at pressure regulation gas.
Working principle: flow into pressurized gas to the air-inlet cavity space from gas-entered passageway 11 during use, enter in the outlet chamber space by valve passage 12, because spool 16 has throttling action with the aperture slit that valve passage 12 forms, after pressurized gas are depressurized, flow out from outlet passageway 14, provide actuator to use.
Pressure regulation gas working principle: draw gas by pressure regulation gas extraction channel 36 from outlet passageway 14, draw adapter 31 through pressure regulation gas and enter pressure regulation gas lift pressure-controlled valve 32, enter pressure regulation gas by pressure regulation gas lift pressure-controlled valve 32 and introduce passage, and by entering pneumatic pressure regulating cavity 21 behind the pressure regulation gas inlet hole 26, gas promotes piston 22 and moves in pressure regulating cavity, the pressure that piston 22 overcomes spring 25 is with the valve rod in the outlet chamber 18 pushing tow upwards, be connected spool 16 on the valve rod 18 in the effect that overcomes shutter spring 17 and on move, spool 16 forms aperture with valve passage 12, at this moment, pressurized gas in the air-inlet cavity space are reduced pressure by throttling through spool 16 and the aperture slit that valve passage 12 forms, and enter in the outlet chamber 13, entering gas pressures in the outlet chamber 13 simultaneously acts on the pneumatic piston 22 on the pneumatic regulator, pneumatic piston 22 is moved down, spool 16 also moves down under the effect of shutter spring 17, until reaching setting pressure.As close pneumatic remote control 3 and raise the control valve 32 that boosts of calming the anger, spool 16 is exported pressure stable with the aperture constant magnitude of valve passage 12 formation.If, set pressure is too high, then by the 34 control pressure releases of pressure regulation gas pressure release control valve, the gas pressure of the pressure regulating cavity 21 of pneumatic regulator 2 is descended, and pneumatic piston 22 moves down, and piston 22 drives valve rod 18 and moves down with spool 16, spool 16 forms aperture with valve passage 12 and reduces, gas pressure in the outlet chamber also reduces thereupon, until reaching setting pressure, then closes pressure regulation gas pressure release control valve 34.
Claims (4)
1, a kind of gas pressure reducer, include valve body (1), be arranged on gas-entered passageway (11) in the valve body, valve passage (12), outlet chamber (13), outlet passageway (14), be arranged on the spool (16) of valve passage (12) mouth, be arranged on the shutter spring (17) above the spool (16), be arranged in the outlet chamber (13) and be connected valve rod (18) below the spool (16), it is characterized in that: in described valve body (1), be provided with pneumatic regulator (2), described pneumatic regulator (2) includes pneumatic pressure regulating cavity (21), be arranged on the piston (22) in the pneumatic pressure regulating cavity (21), spring (25), described pneumatic pressure regulating cavity (21) communicates with the outlet chamber (13) of reduction valve, described spring (25) put in outlet chamber (13) and roof pressure on piston (22), the valve rod (18) of fixedlying connected with spool (16) in the outlet chamber (13) of piston (22) and reduction valve joins, and also is provided with pressure regulation gas inlet hole (26) on the wall of pneumatic pressure regulating cavity (21) chamber.
2, gas pressure reducer according to claim 1, it is characterized in that: be outside equipped with pneumatic remote control (3) at described valve body (1), described pneumatic remote control (3) is to draw adapter (31) by pressure regulation gas, pressure regulation gas lift pressure-controlled valve (32), pressure regulation gas is introduced adapter (33) and is connected in sequence, pressure regulation gas extraction channel (36) on described pressure regulation gas is drawn adapter (31) and is arranged on valve body on the outlet passageway (14) is connected, and described pressure regulation gas is introduced the pressure regulation gas inlet hole of taking on (33) and the described pneumatic regulator (2) (26) and joined.
3, gas pressure reducer according to claim 1 is characterized in that: also be provided with damping plate (23) and ring washer (24) on the piston (22) in the described pneumatic regulator (2).
4, gas pressure reducer according to claim 2 is characterized in that: the pressure regulation gas on the described pneumatic remote control (3) is introduced to take on (33) and is connected with pressure regulation gas pressure release control valve (34) and pressure regulation gas relief tube (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201217909U CN201269336Y (en) | 2008-07-18 | 2008-07-18 | Gas pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201217909U CN201269336Y (en) | 2008-07-18 | 2008-07-18 | Gas pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269336Y true CN201269336Y (en) | 2009-07-08 |
Family
ID=40841935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201217909U Expired - Fee Related CN201269336Y (en) | 2008-07-18 | 2008-07-18 | Gas pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201269336Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090070A (en) * | 2011-11-02 | 2013-05-08 | 广西柳工机械股份有限公司 | Piloted type pressure reducing valve |
-
2008
- 2008-07-18 CN CNU2008201217909U patent/CN201269336Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090070A (en) * | 2011-11-02 | 2013-05-08 | 广西柳工机械股份有限公司 | Piloted type pressure reducing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO XINGJIAN SPACE MANUFACTORY CO., LTD. Free format text: FORMER NAME: NINGBO XINGJIAN SPACE MANUFACTORY |
|
| CP03 | Change of name, title or address |
Address after: Yinzhou District Shiqi Street West Yangcun 315153 Zhejiang city of Ningbo Province Patentee after: Ningbo Xingjian Space Manufactory Inc. Address before: 315153 Zhejiang city of Ningbo province Yinzhou District Shi Gan Wan Hing Road No. 369 Street Patentee before: Ningbo Xingjian Space Manufactory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20140718 |
|
| EXPY | Termination of patent right or utility model |