CN2608790Y - Pressure-reducing valve - Google Patents
Pressure-reducing valve Download PDFInfo
- Publication number
- CN2608790Y CN2608790Y CN 03227205 CN03227205U CN2608790Y CN 2608790 Y CN2608790 Y CN 2608790Y CN 03227205 CN03227205 CN 03227205 CN 03227205 U CN03227205 U CN 03227205U CN 2608790 Y CN2608790 Y CN 2608790Y
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- China
- Prior art keywords
- valve
- piston
- pressure
- valve body
- piston cylinder
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- Expired - Fee Related
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model relates to a decompressing valve used in liquid conveying pipeline for reducing pressure of liquid and installed on principal pipe or branch pipe. The decompressing valve is made up of a valve body, a valve base, a valve rod, a valve plate, a sealing inlaid plate, a piston and a piston cylinder. The valve base is integrated with the piston cylinder and inlaid in the valve body. Components are inlaid in turn through a passage of the valve body. Assembly and disassembly of the components dose not influence the valve body. In addition, the utility model has the advantages of small cubage, simple structure, easy maintenance, low labor intensity and short time needed. The utility model utilizes feedback pressure finishing automatic adjustment, stabilizes decompressed pressure, provides stable and safe use, prevents pollution, and improves working efficiency and reliability of the pipeline system.
Description
Technical field: the utility model relate to be installed in a kind of fluid delivery pipeline system be responsible for or arm on be used for reducing the reduction valve of hydrodynamic pressure, belong to a kind of valve that utilizes the pressure flow body carried in the pipeline to drive automatically and control.
Background technique: in the fluid delivery pipeline system, the fluid of carrying has certain pressure, in main line, need on a certain position or some arm pressure is reduced to certain certain value, with the needs that satisfy the user with guarantee pipe fitting in the pipeline, the safe operation of annex, therefore, on the pipeline of needs reduction pressure, decompressor to be installed, by regulating decompressor mechanism, can will reduce to a certain value by the pressure of fluid behind the decompressor, decompressor generally is made of reduction valve or multiple valve assembly, mainly contain two kinds of leading type and direct acting types on the structure, driving mode has two kinds of metallic piston formula and rubber membrane chips, regulative mode all adopts spring to regulate, on the general structure many springs, valve seat and piston cylinder are that the multi-cavity of split is multi-channel assembled, open-shut device, Returnning spring, Regulation spring, valve seat, Sealing is contained in the different cavitys, assembling and to remove be to carry out in each cavity in a plurality of passages, thereby valve body manufacturing process complexity, the processing accumulated error is big, assembly precision is low, dress, tear each component open and all need tear moving valve open, maintenance difficulties is big, hand labor intensity is big, the fault point is many, use inconvenience, influence the working efficiency of whole pipe-line system.
Summary of the invention: technical problem to be solved in the utility model is to be to provide a kind of separate assembling piston to make single spring piloted reducer of driver, its related component are press insert type, valve seat and piston cylinder are designed to whole an embedding in the valve body, all component are all embedded successively by a passage of valve body, can not influence valve body in the assembling of whole valve with when removing movable part, it is little to have volume, simple in structure, maintainability is good, advantages such as saving of work and time, adopt rubber plate insert seal structure simultaneously and utilize the pressure flow body of carrying in the pipeline to drive and utilize the feedback pressure regulative mode to regulate automatically, make the decompression pressure stability, use steady safety non-pollution, improved the working efficiency and the reliability of pipe-line system.
The utility model technical solution problem adopts following technological scheme:
The utility model is by valve body, valve seat, piston cylinder, valve rod, valve plate, rubber gasket sheet, panel is pressed in sealing, piston, packing ring, valve gap, spring, rear stabilizer, bearing, guard shield, adjusting screw rod, pressure gauge, filter, modulating valve, three-way pipe, pipe joint, pipe fitting, " O " RunddichtringO, cushion, nut, bolt is formed, valve body is the threeway hole body, it is entrance point, outlet end and the through hole that cooperates with piston cylinder, valve seat, all be processed with seal groove on piston cylinder and the valve rod, " O " RunddichtringO is housed respectively in it, valve plate is embedded in rubber gasket sheet and presses panel to push down with sealing, rubber gasket sheet is pressed the concentric hole of panel together to pack on the valve plate by valve plate and sealing and is used nut, cushion and valve plate are fastened together, " O " RunddichtringO is housed on the piston outer rim, valve rod passes valve seat, piston is packed in the piston cylinder inner chamber, piston and the concentric cushion of also using of valve rod, nut and valve rod are fastenedly connected, valve seat and piston cylinder together are fitted in the valve body, spring one end is contained on the boss of piston, the other end is pushed down with rear stabilizer, bearing is housed on the adjusting screw rod, adjusting screw rod is by being threaded in the valve gap, rear stabilizer is pushed down in the adjusting screw rod lower end, guard shield is connected with valve gap by screw thread and the adjusting screw rod upper end is enclosed in the guard shield, valve gap is pushed down piston cylinder and is used bolt, nut and valve body fuse, pipe fitting one end is communicated with the valve body entrance point by pipe joint, the other end is communicated with the valve outlet end by pipe joint, on this pipe fitting, modulating valve is housed, pressure gauge, filter, three-way pipe, another pipe fitting one end is connected with three-way pipe, and the cavity that the other end is connected with valve body by pipe joint and forms by the hole on the piston cylinder and piston and piston cylinder is communicated with.
When valve is loaded on the fluid-transporting tubing, can enter working state automatically.The valve body entrance point is full of fluid, hydrodynamic pressure passes through three-way joint element, pipe fitting enters in the cavity of piston, this pressure acts on the piston, its direction is opposite with the pressure direction of spring, hydrodynamic pressure acts on valve plate from entrance point simultaneously, rubber gasket sheet, sealing is pressed on the panel, the direction of its active force is identical with the direction of the power of spring action on piston, under the effect of these three power, rubber gasket sheet is lifted off a seat to make and is flow to the outlet end that the pressure flow body that the comes gap by rubber gasket sheet and valve base chamber flows to valve body from the valve body entrance point and also continuously flow into downstream line.When fluid flows, because the throttling action in gap between rubber gasket sheet and the valve seat, produce the pressure loss, cause effect of easing stress, the pressure of valve outlet end is lower than the pressure of valve body entrance point like this, the pressure of valve outlet end can show by the pressure gauge that is communicated with pipe fitting, by regulating the pressure that adjusting screw rod just can the spring of regulating action on piston, also just can regulate the throttle clearance of rubber gasket sheet and valve seat, the pressure loss that is fluid by this gap is adjustable, pressure that so just can the regulation valve body outlet end, when the pressure that flows to the pressure flow body that comes from the valve body entrance point raises, by the feedback effect of pipe fitting, the pressure in the piston lower chamber raises, and this pressure promotes piston and drive rubber gasket sheet by valve rod to move to valve seat, the gap of rubber gasket sheet and valve seat reduces thereupon, the fluid pressure loss that flows through this gap increases, and makes because the outlet end pressure rising that the rising of entrance point pressure causes is inhibited, and remains near the pressure stable value; Otherwise, when flowing to the pressure flow body pressure decline that comes from the valve body entrance point, feedback effect by pipe fitting, pressure in the piston lower chamber also descends, the pressure that acts on the piston bottom reduces, piston will rise and drive rubber gasket sheet by valve rod and move up, away from valve seat, gap between rubber gasket sheet and the valve seat increases thereupon, the fluid pressure loss that flows through this gap reduces, make because the pressure decline of the outlet end that the decline of entrance point pressure causes is remedied, remain near the pressure stable value.
When the utility model press insert type reduction valve with said structure is loaded on the fluid-transporting tubing, because its volume is little, simple in structure, thereby maintainability is good, saving of work and time, simultaneously owing to adopt rubber plate insert seal structure and utilize the pressure flow body of carrying in the pipeline to drive and utilize the feedback pressure regulative mode to regulate automatically, make the decompression pressure stability, use steady safety non-pollution, improved the working efficiency and the reliability of pipe-line system.
Description of drawings:
Fig. 1 is the utility model overall construction drawing.
Mode of execution: as shown in Figure 1.The utility model is by valve body 19, valve seat 39, piston cylinder 16, valve rod 33, valve plate 22, rubber gasket sheet 21, panel 40 is pressed in sealing, piston 27, packing ring 38, valve gap 3, spring 6, rear stabilizer 5, bearing 4, guard shield 1, adjusting screw rod 2, pressure gauge 7, filter 32, modulating valve 34,8,9,14, three-way pipe 28,10, pipe joint 36,35,17, pipe fitting 26,30, " O " RunddichtringO 31,20,18,15, cushion 23,25, nut 11,13,24, bolt 12 is formed, valve body 19 is the threeway hole body, it is entrance point 101, outlet end 102 and the through hole that cooperates with piston cylinder 16, be processed with seal groove on the valve seat 39, " O " RunddichtringO 20 is housed, on the piston cylinder 16 seal groove is arranged, in " O " RunddichtringO 18 is housed, be processed with seal groove on the valve rod 33, " O " RunddichtringO 31 is housed in it, valve plate 22 is embedded in rubber gasket sheet 21 and presses panel 40 to push down with sealing, rubber gasket sheet 21 presses the concentric hole of panel 21 together to pack on the valve plate 22 and with nut 24 by valve plate 22 and sealing, cushion 23 is fastened together with valve plate 22, " O " RunddichtringO 15 is housed on piston 27 outer rims, valve rod 33 passes valve seat 39, piston 27 is packed in piston cylinder 16 inner chambers, piston 27 is concentric also with cushion 25 with valve rod 33, nut 11 is fastenedly connected with valve rod 33, valve seat 39 together is fitted in the valve body 19 with piston cylinder 16, spring 6 one ends are contained on the boss of piston 27, the other end is pushed down with rear stabilizer 5, bearing 4 is housed on the adjusting screw rod 2, adjusting screw rod 2 is by being threaded in the valve gap 3, rear stabilizer 5 is pushed down in adjusting screw rod 2 lower ends, guard shield 1 is connected with valve gap 3 by screw thread and adjusting screw rod 2 upper ends is enclosed in the guard shield 1, valve gap 3 is pushed down piston cylinder 16 and is used bolt 13, nut 12 fuses with valve body 19, pipe fitting 26 is communicated with valve body 19 entrance points 101 by pipe joint 36, modulating valve 34 is housed on pipe fitting 26,9,14,8, pressure gauge 7, filter 32, three-way pipe 28,10, pipe fitting 30 1 ends are connected with three-way pipe 28, the cavity 29 that the other end is connected with valve body 19 by pipe joint 35 and forms by the hole on the piston cylinder 16 and piston 27 and piston cylinder 16 is communicated with, and pipe fitting 26 the other ends are communicated with valve body 19 outlet end 102 by pipe joint 17.
When valve is loaded on the fluid-transporting tubing, can enter working state automatically.Valve body 19 entrance points 101 are full of fluid, hydrodynamic pressure is by three-way joint element 28, pipe fitting 30 enters in the cavity 29 of piston 27, this pressure acts on the piston 27, its direction is opposite with the pressure direction of spring 6, hydrodynamic pressure acts on valve plate 22 from entrance point 101 simultaneously, rubber gasket sheet 21, sealing is pressed on the panel 40, the direction of its active force is identical with the direction that spring 6 acts on the power on the piston 27, under the effect of these three power, rubber gasket sheet 21 is lifted off a seat and 39 is made and flow to the outlet end 102 that the pressure flow body that the comes gap by 39 of rubber gasket sheet 21 and valve seats flows to valve body 19 from valve body 19 entrance points 101 and also continuously flow into downstream line.When fluid flows, because the throttling action in gap between rubber gasket sheet 21 and the valve seat 39, produce the pressure loss, cause effect of easing stress, the pressure of valve body 19 outlet end 102 is lower than the pressure of valve body 19 entrance points 101 like this, the pressure of valve body 19 outlet end 102 can show by the pressure gauge 7 that is communicated with pipe fitting 26, by regulating the pressure that adjusting screw rod 2 just can the spring 6 of regulating action on piston 27, also just can regulate the throttle clearance of rubber gasket sheet 21 and valve seat 39, the pressure loss that is fluid by this gap is adjustable, pressure that so just can regulation valve body 19 outlet end 102, when the pressure that flows to the pressure flow body that comes from valve body 19 entrance points 101 raises, feedback effect by pipe fitting 26, pressure in piston 27 lower chambers 29 raises, this pressure promotes piston 27 and drives rubber gasket sheet 21 to valve seat 39 motions by valve rod 33, rubber gasket sheet 21 reduces with the gap of valve seat 39 thereupon, the fluid pressure loss that flows through this gap increases, make because the outlet end 102 pressure rising that the rising of entrance point 101 pressure causes is inhibited, remain near the pressure stable value; Otherwise, when flowing to the pressure flow body pressure decline that comes from valve body 19 entrance points 101, feedback effect by pipe fitting 26, pressure in piston 27 lower chambers 29 also descends, the pressure that acts on piston 27 bottoms reduces, piston 27 will rise and drive rubber gasket sheet 21 by valve rod 33 and move up, away from valve seat 39, gap between rubber gasket sheet 21 and the valve seat 39 increases thereupon, the fluid pressure loss that flows through this gap reduces, make because the pressure decline of the outlet end 102 that the decline of entrance point 101 pressure causes is remedied, remain near the pressure stable value.
Claims (1)
1, a kind of press insert type reduction valve is by valve body (19), valve seat (39), piston cylinder (16), valve rod (33), valve plate (22), rubber gasket sheet (21), panel (40) is pressed in sealing, piston (27), packing ring (38), valve gap (3), spring (6), rear stabilizer (5), bearing (4), guard shield (1), adjusting screw rod (2), pressure gauge (7), filter (32), modulating valve (34), (8), (9), (14), three-way pipe (28), (10), pipe joint (36), (35), (17), pipe fitting (26), (30), " O " RunddichtringO (31), (20), (18), (15), cushion (23), (25), nut (11), (13), (24), bolt (12) is formed, it is characterized in that valve body (19) is the threeway hole body, be entrance point (101), outlet end (102) and the through hole that cooperates with piston cylinder (16), valve seat is processed with seal groove on (39), " O " RunddichtringO (20) is housed, piston cylinder has seal groove on (16), in " O " RunddichtringO (18) is housed, valve rod is processed with seal groove on (33), " O " RunddichtringO (31) is housed in it, valve plate (22) is embedded in rubber gasket sheet (21) and presses panel (40) to push down with sealing, rubber gasket sheet (21) presses the concentric hole of panel (21) together to pack into by valve plate (22) and sealing, and valve plate (22) is gone up and with nut (24), cushion (23) is fastened together with valve plate (22), on piston (27) outer rim " O " RunddichtringO (15) is housed, valve rod (33) passes valve seat (39), piston (27) is packed in piston cylinder (16) inner chamber, piston (27) is concentric with valve rod (33), and with cushion (25), nut (11) is fastenedly connected with valve rod (33), valve seat (39) together is fitted in the valve body (19) with piston cylinder (16), spring (6) one ends are contained on the boss of piston (27), the other end is pushed down with rear stabilizer (5), bearing (4) is housed on the adjusting screw rod (2), adjusting screw rod (2) is by being threaded in the valve gap (3), rear stabilizer (5) is pushed down in adjusting screw rod (2) lower end, guard shield (1) is connected with valve gap (3) by screw thread and adjusting screw rod (2) upper end is enclosed in the guard shield (1), valve gap (3) is pushed down piston cylinder (16) and is used bolt (13), nut (12) fuses with valve body (19), pipe fitting (26) is communicated with valve body (19) entrance point (101) by pipe joint (36), modulating valve (34) is housed on pipe fitting (26), (9), (14), (8), pressure gauge (7), filter (32), three-way pipe (28), (10), pipe fitting (30) one ends are connected with three-way pipe (28), the cavity (29) that the other end is connected with valve body (19) by pipe joint (35) and forms by the hole on the piston cylinder (16) and piston (27) and piston cylinder (16) is communicated with, and pipe fitting (26) the other end is communicated with valve body (19) outlet end (102) by pipe joint (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03227205 CN2608790Y (en) | 2003-03-25 | 2003-03-25 | Pressure-reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03227205 CN2608790Y (en) | 2003-03-25 | 2003-03-25 | Pressure-reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2608790Y true CN2608790Y (en) | 2004-03-31 |
Family
ID=34163992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03227205 Expired - Fee Related CN2608790Y (en) | 2003-03-25 | 2003-03-25 | Pressure-reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2608790Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269286A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Protection device for gas circuit system |
| CN102278503A (en) * | 2011-06-16 | 2011-12-14 | 陈建华 | Integral pressure reduction valve |
| CN104006194A (en) * | 2014-06-05 | 2014-08-27 | 宁波永享铜管道有限公司 | Reducing valve |
| CN107606177A (en) * | 2017-09-08 | 2018-01-19 | 成都西屋科技发展有限公司 | A kind of adjustable automatic valve of flow pressure |
-
2003
- 2003-03-25 CN CN 03227205 patent/CN2608790Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269286A (en) * | 2010-12-31 | 2011-12-07 | 北京谊安医疗系统股份有限公司 | Protection device for gas circuit system |
| CN102278503A (en) * | 2011-06-16 | 2011-12-14 | 陈建华 | Integral pressure reduction valve |
| CN104006194A (en) * | 2014-06-05 | 2014-08-27 | 宁波永享铜管道有限公司 | Reducing valve |
| CN107606177A (en) * | 2017-09-08 | 2018-01-19 | 成都西屋科技发展有限公司 | A kind of adjustable automatic valve of flow pressure |
| CN107606177B (en) * | 2017-09-08 | 2019-03-29 | 成都西屋科技发展有限公司 | A kind of adjustable automatic valve of flow pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040331 |