CN201339738Y - Hydraulic control membrane type pressure regulator with high step-down ratio - Google Patents
Hydraulic control membrane type pressure regulator with high step-down ratio Download PDFInfo
- Publication number
- CN201339738Y CN201339738Y CNU2008201590769U CN200820159076U CN201339738Y CN 201339738 Y CN201339738 Y CN 201339738Y CN U2008201590769 U CNU2008201590769 U CN U2008201590769U CN 200820159076 U CN200820159076 U CN 200820159076U CN 201339738 Y CN201339738 Y CN 201339738Y
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- hydraulic control
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- 239000012528 membrane Substances 0.000 title abstract 8
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The utility model discloses a hydraulic control membrane type pressure regulator with high step-down ratio, comprising a valve body (1), a piston rod (3), a piston (2) and a valve rod (4). A membrane seat (5) and a valve cover (10) are arranged on the valve rod (1); the valve rod (4) is connected to a membrane (8); a lower membrane chamber (16) is communicated with the atmosphere; one end of a bypass pipeline (17) is connected with the inlet end of the valve body (1) while the other end is connected with one working end of a pressure information collecting device guide valve component (14); another working end of the pressure information collecting device guide valve component (14) is connected with an upper membrane chamber (15) while the control end is connected with the outlet end of the valve body (1). The hydraulic control membrane type pressure regulator has high pressure reduction ratio, the reduced pressure being stable and not influenced by the upstream pressure and variation in flow rate, has strong anti-cavitation capability and can effectively avoid phenomena of noises and squeaking, therefore the hydraulic control membrane type pressure regulator is suitable for various working conditions with heavy load, high pressure difference and others.
Description
Technical field
The utility model is mainly concerned with the pump valve field, refers in particular to the high step-down ratio pressure regulator valve of a kind of hydraulic control diaphragm type.
Background technique
In the prior art, a kind of high step-down ratio pressure regulator valve is arranged, its valve flowing channel structure is the Z font, the piston cylinder that valve inner has two joints to combine, a piston movable up and down also is equipped with in the piston cylinder hole, on piston cylinder and piston, also be processed with the aperture of many overcurrents respectively, it is to adjust the relative position of piston in piston cylinder by the mode of handwheel on the artificial rotary valve, obtain needed downstream pressure, when fluctuation takes place in downstream pressure, it does not possess automatic adjustment piston in piston cylinder the position and obtain to stablize the function of downstream pressure.
The model utility content
When problem to be solved in the utility model provides a kind of downstream pressure fluctuation takes place, possess automatic adjustment piston in piston cylinder the position and obtain stablize downstream pressure and simple in structure, assemble easy to maintenance, have a high step-down ratio pressure regulator valve of safe and reliable hydraulic control diaphragm type.
In order to solve above-mentioned technology existing problems, the high step-down ratio pressure regulator valve of the hydraulic control diaphragm type that the utility model provides, comprise valve body, piston cylinder, piston and the valve rod that is attached thereto, on described valve body, be provided with diaphragm seat and valve gap thereof, between described diaphragm seat and valve gap, be provided with diaphragm and form diaphragm epicoele and diaphragm cavity of resorption, described valve rod is connected on the described diaphragm, described diaphragm cavity of resorption is communicated with atmosphere, the first by-pass governing pipeline, one end that is provided with first modulating valve and first filter is connected with described valve body entrance point, the other end is connected with a working end of pressure information gathering-device guide valve component, another working end of described pressure information gathering-device guide valve component is connected with described diaphragm epicoele, and the control end of described pressure information gathering-device guide valve component is connected with the outlet end of described valve body by the second by-pass governing pipeline that is provided with second modulating valve and second filter.
Adopt the high step-down ratio pressure regulator valve of hydraulic control diaphragm type of technique scheme, the information collection of pressure information gathering-device guide valve component is according to the pressure that changes behind the valve, the control diaphragm moves up and down, thereby control piston moves up and down, and the automatic adjusting of control downstream pressure is drawn close towards the pressure balance direction of original setting.Pressure medium enters in the piston hole at a high speed by piston cylinder bottom aperture, heart portion at piston, spray the high speed medium formation high velocity impact each other that comes all around, make pressure can transform into kinetic energy, this process has consumed portion of energy, then medium again along the aperture at piston cylinder middle part once more high velocity jet in the expanded letter inner chamber of valve body, further consumed the energy of medium, obtain needed pressure after making valve.
Compared with prior art, advantage of the present utility model just is:
1, the high step-down ratio pressure regulator valve of the utility model hydraulic control diaphragm type has rational in infrastructure, appearance looks elegant, main valve body adopts straight-through molded breadth valve body design, and media flow is smooth and easy, and turbulent flow is few, and assembling, maintenance, debugging are convenient, have higher-security and reliability.
2, on the high step-down ratio pressure regulator valve of the utility model hydraulic control diaphragm type, have and collect the pressure information gathering-device guide valve component that pressure information changes, thus it automatically behind the Inductance valve variation in pressure adjust and control the steady state that downstream pressure reaches prior setting automatically.
3, can realize bigger Pressure reducing ratio, decompression process is shockproof, utter long and high-pitched sounds, cavitation phenomenon.
4, working procedure is finished automation, and decompression is reliable, save worry, relieved.
In sum, the utility model is a kind of downstream pressure when fluctuation takes place, possess automatic adjustment piston in piston cylinder the position and obtain stablize downstream pressure and simple in structure, assemble easy to maintenance, have a high step-down ratio pressure regulator valve of safe and reliable hydraulic control diaphragm type.
Description of drawings
Fig. 1 is the utility model structural representation;
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, in valve body 1, be provided with piston cylinder 3 and piston 2, on valve body 1, be provided with diaphragm seat 5 and valve gap 10 thereof, between diaphragm seat 5 and valve gap 10, be provided with diaphragm 8 and form diaphragm epicoele 15 and diaphragm cavity of resorption 16, valve rod 4 upper ends are connected on the diaphragm 8 by diaphragm top board 9 and diaphragm press table 7, valve rod 4 lower ends are connected with piston 2, diaphragm cavity of resorption 16 is communicated with atmosphere, be provided with first modulating valve 11 and first filter 12, by-pass governing pipeline 20 1 ends of first pressure gauge 13 are connected with valve body 1 entrance point, the other end is connected with a working end of pressure information gathering-device guide valve component 14, another working end of pressure information gathering-device guide valve component 14 is connected with diaphragm epicoele 15, and the control end of pressure information gathering-device guide valve component 14 is by being provided with second modulating valve 18 and second filter 17, the by-pass governing pipeline 21 of second pressure gauge 19 is connected with the outlet end of valve body 1.
Referring to Fig. 1, regulate the screw required pressure to the valve on the pressure information gathering-device guide valve component 14, during work, pressure medium enters valve body 1 entrance point, a part of pressure medium is by modulating valve 11 simultaneously, filter 12 enters a working end of pressure information gathering-device guide valve component 14, and enter the diaphragm epicoele 15 of valve body 1 by another working end, between pilot valve valve plate in the pressure information gathering-device guide valve component 14 and the valve plate seat certain opening is arranged at this moment, make diaphragm epicoele 15 partial pressures let out the outlet end of valve body 1, between piston 2 in the formation valve body 1 and the piston cylinder 3 certain opening overcurrent is arranged, the mutual collision of high speed medium around piston 2, being formed centrally behind the aperture before valve on process piston cylinder 3 apertures and the piston 2, pass through piston cylinder 3 high velocity jet then again in wide valve body 1, pressure medium is further reduced, just obtain stable required pressure like this behind the valve.
When valve body 1 back pressure increases, the control end of the pressure signal transmission that increases to the pressure information gathering-device guide valve component 14, the pilot valve valve plate of the control end pilot pressure information collection apparatus guide valve component 14 in the pressure information gathering-device guide valve component 14 and the opening between the valve plate seat reduce, cause diaphragm epicoele 15 pressure to increase, diaphragm 8 drive valve rods 4, piston 2 are moved down synchronously, area of passage between piston 2 and the piston cylinder 3 is reduced, impel downstream pressure to reduce thereupon, return to the metastable state of prior setting up to downstream pressure.Thereby can be sensed and finish automatically the function of adjustment after the variation of realization downstream pressure by valve oneself, stablize constant to keep downstream pressure.
Otherwise, as the same.
Claims (1)
1, the high step-down ratio pressure regulator valve of a kind of hydraulic control diaphragm type, comprise valve body (1), piston cylinder (3), piston (2) and the valve rod (4) that is attached thereto, it is characterized in that: on described valve body (1), be provided with diaphragm seat (5) and valve gap (10) thereof, between described diaphragm seat (5) and valve gap (10), be provided with diaphragm (8) and form diaphragm epicoele (15) and diaphragm cavity of resorption (16), described valve rod (4) is connected on the described diaphragm (8), described diaphragm cavity of resorption (16) is communicated with atmosphere, the first by-pass governing pipeline (20) one ends that are provided with first modulating valve (11) and first filter (12) are connected with described valve body (1) entrance point, the other end is connected with a working end of pressure information gathering-device guide valve component (14), another working end of described pressure information gathering-device guide valve component (14) is connected with described diaphragm epicoele (15), and the control end of described pressure information gathering-device guide valve component (14) is connected with the outlet end of described valve body (1) by the second by-pass governing pipeline (21) that is provided with second modulating valve (18) and second filter (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201590769U CN201339738Y (en) | 2008-11-07 | 2008-11-07 | Hydraulic control membrane type pressure regulator with high step-down ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201590769U CN201339738Y (en) | 2008-11-07 | 2008-11-07 | Hydraulic control membrane type pressure regulator with high step-down ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339738Y true CN201339738Y (en) | 2009-11-04 |
Family
ID=41235284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201590769U Expired - Lifetime CN201339738Y (en) | 2008-11-07 | 2008-11-07 | Hydraulic control membrane type pressure regulator with high step-down ratio |
Country Status (1)
| Country | Link |
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| CN (1) | CN201339738Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313054A (en) * | 2011-08-19 | 2012-01-11 | 浙江盾安阀门有限公司 | Piston type pressure reducing valve |
| CN102705549A (en) * | 2012-06-19 | 2012-10-03 | 杭州良工阀门有限公司 | Pressure reducing valve for nuclear power fire fighting |
| CN102879141A (en) * | 2012-08-14 | 2013-01-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for accurately stabilizing pressure in periodical water supply system of hydraulic dynamometer |
| CN103174868A (en) * | 2013-02-06 | 2013-06-26 | 张凡 | Diaphragm valve with adjustable pressure and adjustable flow range |
| CN106870815A (en) * | 2017-03-17 | 2017-06-20 | 湖南泵阀制造有限公司 | Balanced type Direct Action Type water attack release valve |
| CN112431951A (en) * | 2020-11-12 | 2021-03-02 | 株洲珠华水工业科技开发有限公司 | Multi-period self-adaptive constant-voltage system |
-
2008
- 2008-11-07 CN CNU2008201590769U patent/CN201339738Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313054A (en) * | 2011-08-19 | 2012-01-11 | 浙江盾安阀门有限公司 | Piston type pressure reducing valve |
| CN102313054B (en) * | 2011-08-19 | 2014-04-16 | 浙江盾安阀门有限公司 | Piston type pressure reducing valve |
| CN102705549A (en) * | 2012-06-19 | 2012-10-03 | 杭州良工阀门有限公司 | Pressure reducing valve for nuclear power fire fighting |
| CN102705549B (en) * | 2012-06-19 | 2013-11-27 | 杭州良工阀门有限公司 | Pressure reducing valve for nuclear power fire fighting |
| CN102879141A (en) * | 2012-08-14 | 2013-01-16 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for accurately stabilizing pressure in periodical water supply system of hydraulic dynamometer |
| CN102879141B (en) * | 2012-08-14 | 2015-06-10 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for accurately stabilizing pressure in periodical water supply system of hydraulic dynamometer |
| CN103174868A (en) * | 2013-02-06 | 2013-06-26 | 张凡 | Diaphragm valve with adjustable pressure and adjustable flow range |
| CN106870815A (en) * | 2017-03-17 | 2017-06-20 | 湖南泵阀制造有限公司 | Balanced type Direct Action Type water attack release valve |
| CN106870815B (en) * | 2017-03-17 | 2022-12-20 | 湖南泵阀制造有限公司 | Balance type direct-acting water attack relief valve |
| CN112431951A (en) * | 2020-11-12 | 2021-03-02 | 株洲珠华水工业科技开发有限公司 | Multi-period self-adaptive constant-voltage 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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |