CN206617598U - Pressure-reducing valve with piston balance ring - Google Patents
Pressure-reducing valve with piston balance ring Download PDFInfo
- Publication number
- CN206617598U CN206617598U CN201720241623.7U CN201720241623U CN206617598U CN 206617598 U CN206617598 U CN 206617598U CN 201720241623 U CN201720241623 U CN 201720241623U CN 206617598 U CN206617598 U CN 206617598U
- Authority
- CN
- China
- Prior art keywords
- valve
- control
- diaphragm
- valve body
- cavity
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model is related to a kind of pressure-reducing valve with piston balance ring, including main valve, control valve, pressure setting device and main valve opening control device；Main valve is made up of valve body, valve seat, flap, bonnet；Pressure setting device is made up of setting spring, adjusting screw, housing；Control valve uses check valve structure, is made up of application valve body, application valve cover, ball sealer, Packing spring；Main valve opening control device is made up of valve rod, actuating bellows, control diaphragm；Mainly control diaphragm uses piston structure, and outside piston face and actuating bellows internal chamber wall dynamic sealing coordinate, and valve rod lower end is fixedly connected with the piston, and upper end is fixedly connected with flap, and the guide ring with gap cooperation in the middle part of valve rod is set in actuating bellows and valve body junction；Diaphragm cavity of resorption is connected with control valve outlet plenum, and control valve snout cavity is connected with valve body import passage, and control chamber is connected with valve outlet passage.The defect for avoiding prior art from driving flap to be easily damaged diaphragm using rubber diaphragm, long product lifecycle.
Description
Technical field
The utility model belongs to valve field, more particularly to a kind of pressure-reducing valve.
Background technology
Constituted more than pressure-reducing valve using main valve and diaphragm control device, such as Patent No. ZL2011103687657 diaphragm type
Pressure-reducing valve, is made up of main valve and diaphragm control device, and main valve inlet channel media pressure is incorporated into diaphragm control by control valve
The upper and lower film room of device, sets superpressure check valve between lower film room and control valve outlet, Main valve outlet channel media pressure is drawn
Enter the control chamber of control valve, the aperture of control valve is controlled, so that control bound aperture.Its major defect is：Diaphragm is typically used
Elastomeric material, easily aging, breakage after the diaphragm of elastomeric material is used for a long time, influences product service life.
The content of the invention
The purpose of this utility model is that the shortcoming existed for prior art is flat there is provided a kind of band piston of service life length
Heng Quan pressure-reducing valve.
The technical solution of the utility model includes main valve, control valve, pressure setting device and main valve opening control device；It is main
Valve is made up of valve body, valve seat, flap, bonnet, and valve flowing channel uses high in and low out structure, flap upper surface and bonnet lower surface it
Between spring is set；Pressure setting device is made up of setting spring, adjusting screw, housing, and housing lower surface is by controlling cavity to consolidate
Rubber diaphragm is installed in the middle of the bonnet upper surface between housing and control cavity by Dingan County, rubber diaphragm and control cavity it
Between constitute control chamber, setting spring lower end is fitted on the spring base at rubber diaphragm upper surface center, and setting spring upper end passes through
Spring capping is contacted with adjusting screw；Control valve uses check valve structure, by application valve body, application valve cover, ball sealer, sealing bullet
Spring is constituted, and application valve body is arranged between bonnet and control cavity, and application valve body is formed with center-aisle, its lower surface and control valve
Control valve snout cavity is constituted between lid, center-aisle mouth in application valve body lower surface is formed with the ball face sealing cooperated with ball sealer
Face, ball sealer and Packing spring are arranged in control valve snout cavity, and Packing spring lower end is arranged in application valve cover, ball sealer peace
Between Packing spring upper end and the ball face sealing face of application valve body lower surface；Control is fixedly mounted in rubber diaphragm lower surface center
Bar processed, the control-rod lower end is stretched into the center-aisle of application valve body with being contacted on the upside of ball sealer；Main valve opening control device by
Valve rod, actuating bellows, control diaphragm composition, actuating bellows are fixedly mounted on valve body, and actuating bellows are isolated into by control diaphragm
Diaphragm epicoele and diaphragm cavity of resorption；Mainly control diaphragm uses piston structure, and outside piston face moves close with actuating bellows internal chamber wall
Envelope coordinates, and valve rod lower end is fixedly connected with the piston, and upper end is fixedly connected with flap, set in actuating bellows and valve body junction and
The guide ring that gap coordinates in the middle part of valve rod；Diaphragm cavity of resorption is connected with control valve outlet plenum, and control valve snout cavity leads to valve body import
Road is connected, and control chamber is connected with valve outlet passage, and diaphragm cavity of resorption is connected by damper tube with valve outlet passage.
In above technical scheme, cooperated between valve rod and guide ring using spline.
The utility model has the advantages that the control diaphragm of control flap aperture uses piston structure, it is to avoid prior art is used
Rubber diaphragm directly drives flap to adjust the defect that aperture is easily damaged diaphragm, long product lifecycle.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is partial structurtes enlarged drawing at I in the utility model Fig. 1.
1 valve body, 2 valve seats, 3 flaps, 4 springs, 5 bonnets, 6 control cavitys, 7 control chambers, 8 housings, 9 setting springs, 10 are adjusted
Save screw, 11 rubber diaphragms, 12 control-rods, 13 application valve bodies, 14 ball sealers, 15 Packing springs, 16 application valve covers, 17 control valves
Snout cavity, 18 control valve outlet plenums, 19 guide rings, 20 valve rods, 21 actuating bellows, 22 control diaphragms, 23 diaphragm epicoeles, 24 diaphragms
Cavity of resorption, 25 damper tubes.
Embodiment
Pressure-reducing valve with piston balance ring as shown in Figure 1, including main valve, control valve, pressure setting device and main valve are opened
Spend control device；Main valve is made up of valve body 1, valve seat 2, flap 3, bonnet 5, and the runner of valve body 1 uses high in and low out structure, i.e. valve seat
The channel media intake channel of 2 tops, sets spring 4, the spring 4 is to flap 3 between the upper surface of flap 3 and the lower surface of bonnet 5
Produce downward thrust；Pressure setting device is made up of setting spring 9, adjusting screw 10, housing 8, and the lower surface of housing 8 passes through control
Cavity 6 processed is fixedly mounted in the middle of the upper surface of bonnet 5, i.e., the lower surface of housing 8 is fixedly connected with control cavity 6 upper end by screw,
It is fixedly connected between the control lower end of cavity 6 and bonnet 5 by screw, rubber diaphragm 11 is installed between housing 8 and control cavity 6,
Control chamber 7 is constituted between rubber diaphragm 11 and control cavity 6, the lower end of setting spring 9 is fitted in the upper surface center of rubber diaphragm 11
Spring base on, the upper end of setting spring 9 is contacted by spring capping with adjusting screw 10；Control valve uses check valve structure, by
Application valve body 13, application valve cover 16, ball sealer 14, Packing spring 15 are constituted, and application valve body 13 is arranged on bonnet 5 and control cavity
Between 6, application valve body 13 is formed with center-aisle, and control valve snout cavity 17, control are constituted between its lower surface and application valve cover 16
The lower surface passway of valve body 13 is formed with the ball face sealing face cooperated with ball sealer 14, and ball sealer 14 and Packing spring 15 are installed
In control valve snout cavity 17, the lower end of Packing spring 15 is arranged in application valve cover 16, and ball sealer 14 is arranged on Packing spring 15
Between the ball face sealing face of upper end and the lower surface of application valve body 13, Packing spring 15 pushes up ball sealer 14 and application valve body 13
Ball face sealing face it is close to each other, as shown in Figure 2；Control-rod 12, the control-rod is fixedly mounted in the lower surface center of rubber diaphragm 11
12 lower ends are stretched into the center-aisle of application valve body 13 and contacted with the upside of ball sealer 14, during the rising of control-rod 12, ball sealer 14 by
Packing spring 15 is pushed closer to the ball face sealing face of application valve body 13, and control valve opening reduces, and sealing is promoted when control-rod 12 is moved down
Ball 14 leaves application valve body 13, control valve opening increase；Main valve opening control device is by valve rod 20, actuating bellows 21, control film
Piece 22 is constituted, and actuating bellows 21 are fixedly mounted on valve body 1, and actuating bellows 21 are isolated into the He of diaphragm epicoele 23 by control diaphragm 22
Diaphragm cavity of resorption 24；Control diaphragm 22 uses piston structure, and outside piston face coordinates with the internal chamber wall dynamic sealing of actuating bellows 21, valve rod
20 lower ends are fixedly connected with the piston, and upper end is fixedly connected with flap 3, are set and valve rod in actuating bellows 21 and the junction of valve body 1
The guide ring 19 that 20 middle parts gap coordinate；Diaphragm cavity of resorption 24 is connected with control valve outlet plenum 18, control valve snout cavity 17 and valve body 1
Intake channel is connected, and control chamber 7 is connected with the exit passageway of valve body 1, and diaphragm cavity of resorption 24 passes through damper tube 25 and the exit passageway of valve body 1
Connection, allows medium in diaphragm cavity of resorption 24 to be back to the exit passageway of valve body 1, while being further separated into the medium flow field of diaphragm cavity of resorption 24
Amount.
Cooperated between valve rod 20 and the endoporus of guide ring 19 using spline, prevent valve rod 20 from producing rotation.
When the exit passageway pressure medium of valve body 1 is higher than set-pressure, pressure medium promotes rubber diaphragm 11 in control chamber 7
Rise, control-rod 12 rises, control valve opening reduces, and pressure declines in diaphragm cavity of resorption 24, and the aperture of flap 3 reduces, and valve body 1 is exported
Channel pressure declines；Conversely, when the exit passageway pressure medium of valve body 1 is less than set-pressure, setting spring 9 promotes rubber diaphragm
11 are moved down, and control valve opening increase, the pressure of diaphragm cavity of resorption 24 increase, piston 22 is moved up, and the aperture of flap 3 increase, the outlet of valve body 1 is logical
Road pressure increase.
Claims (2)
1. a kind of pressure-reducing valve with piston balance ring, including main valve, control valve, pressure setting device and main valve aperture control dress
Put；Main valve is made up of valve body (1), valve seat (2), flap (3), bonnet (5)；Pressure setting device is by setting spring (9), regulation spiral shell
Follow closely (10), housing (8) composition, housing (8) lower surface by controlling cavity (6) to be fixedly mounted in the middle of bonnet (5) upper surface,
Rubber diaphragm (11) is installed between housing (8) and control cavity (6), constitutes and controls between rubber diaphragm (11) and control cavity (6)
Chamber (7) processed；Control valve uses check valve structure, by application valve body (13), application valve cover (16), ball sealer (14), Packing spring
(15) constitute, application valve body (13) is arranged between bonnet (5) and control cavity (6), and application valve body (13) is formed with center-aisle,
Control valve snout cavity (17) is constituted between its lower surface and application valve cover (16), ball sealer (14) and Packing spring (15) are arranged on
In control valve snout cavity (17), ball sealer (14) is arranged on the sphere of Packing spring (15) upper end and application valve body (13) lower surface
Between sealing surface；Control-rod (12) is fixedly mounted in rubber diaphragm (11) lower surface center, and control is stretched into control-rod (12) lower end
With being contacted on the upside of ball sealer (14) in the center-aisle of valve body (13)；Main valve opening control device is by valve rod (20), actuating bellows
(21), control diaphragm (22) composition, actuating bellows (21) are fixedly mounted on valve body (1), control diaphragm (22) by actuating bellows
(21) diaphragm epicoele (23) and diaphragm cavity of resorption (24) are isolated into；It is characterized in that control diaphragm (22) is used outside piston structure, piston
Disc coordinates with actuating bellows (21) internal chamber wall dynamic sealing, and valve rod (20) lower end is fixedly connected with the piston, and upper end is solid with flap (3)
Fixed connection, the guide ring (19) that gap coordinates in the middle part of actuating bellows (21) and the setting of valve body (1) junction and valve rod (20)；Film
Piece cavity of resorption (24) is connected with control valve outlet plenum (18), and control valve snout cavity (17) is connected with valve body (1) intake channel, control chamber
(7) connected with valve body (1) exit passageway, diaphragm cavity of resorption (24) is connected by damper tube (25) with valve body (1) exit passageway.
2. the pressure-reducing valve according to claim 1 with piston balance ring, it is characterized in that valve rod (20) is interior with guide ring (19)
Cooperated between hole using spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241623.7U CN206617598U (en) | 2017-03-10 | 2017-03-10 | Pressure-reducing valve with piston balance ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720241623.7U CN206617598U (en) | 2017-03-10 | 2017-03-10 | Pressure-reducing valve with piston balance ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206617598U true CN206617598U (en) | 2017-11-07 |
Family
ID=60232603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720241623.7U Expired - Fee Related CN206617598U (en) | 2017-03-10 | 2017-03-10 | Pressure-reducing valve with piston balance ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206617598U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644397A (en) * | 2018-08-08 | 2018-10-12 | 百强阀门集团有限公司 | Depressurize shut-off valve |
| CN110523305A (en) * | 2019-09-18 | 2019-12-03 | 浙江工业大学 | A kind of mixer of adjustable foam liquid proportional |
-
2017
- 2017-03-10 CN CN201720241623.7U patent/CN206617598U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644397A (en) * | 2018-08-08 | 2018-10-12 | 百强阀门集团有限公司 | Depressurize shut-off valve |
| CN110523305A (en) * | 2019-09-18 | 2019-12-03 | 浙江工业大学 | A kind of mixer of adjustable foam liquid proportional |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201902618U (en) | Novel self-operated pressure adjusting valve | |
| CN206617598U (en) | Pressure-reducing valve with piston balance ring | |
| CN103821981A (en) | Self-operated internal pressure collecting type adjusting valve | |
| CN202327281U (en) | Membrane type pressure reducing valve | |
| CN102392911A (en) | Diaphragm type pressure reducing valve | |
| CN214119066U (en) | Outlet pressure control valve for refrigeration system | |
| CN202149260U (en) | Fuel gas pressure regulator | |
| CN205781318U (en) | Labyrinth type noise reduction regulation valve | |
| CN104514901A (en) | Plastic sealing type pilot-operated safety valve | |
| CN207018594U (en) | A kind of novel fluid pressure maintaining valve | |
| CN202182222U (en) | Piston type balanced self-reliance pressure-regulating valve | |
| CN209067889U (en) | A kind of tyre vulcanizer overflow-type nitrogen balance valve | |
| CN210106709U (en) | Manual-automatic integrated single-seat regulating valve | |
| JP2004265363A (en) | Gas pressure reducing valve | |
| CN205013846U (en) | Heat dissipation type pneumatic film sleeve governing valve | |
| CN203571134U (en) | Plastic sealing pilot operated safety valve | |
| CN208919453U (en) | A kind of regulating valve diaphragm unit used for rail vehicle and regulating valve | |
| CN205401808U (en) | Gasbag formula governing valve | |
| CN205013844U (en) | Low -temperature type pneumatic film single seat governing valve | |
| CN110131442A (en) | A kind of three-way control valve structure | |
| CN109163105A (en) | A kind of double stub shaft regulating valve and its assembly method | |
| CN104500800A (en) | Axial flow pressure regulator | |
| CN205190861U (en) | Bivalve core self -operated pressure control valve | |
| CN210050314U (en) | Range-dividing regulating valve | |
| CN210179008U (en) | Gas pressure regulator |
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: 20171107 Termination date: 20190310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |