CN105179769A - Differential pressure plunger automatic pressure regulating valve - Google Patents
Differential pressure plunger automatic pressure regulating valve Download PDFInfo
- Publication number
- CN105179769A CN105179769A CN201510600347.4A CN201510600347A CN105179769A CN 105179769 A CN105179769 A CN 105179769A CN 201510600347 A CN201510600347 A CN 201510600347A CN 105179769 A CN105179769 A CN 105179769A
- Authority
- CN
- China
- Prior art keywords
- valve body
- diaphragm
- plunger
- medium channel
- fixedly connected
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a differential pressure plunger automatic pressure regulating valve. The differential pressure plunger automatic pressure regulating valve comprises a valve body, a medium channel and a plunger. An upper cavity is arranged in the position, on the upper portion of the plunger, of the valve body; an upper membrane is arranged in the upper cavity and divides the upper cavity into a first upper cavity located on the upper portion of the upper membrane and a second upper cavity located on the lower portion of the upper membrane; the lower surface of the upper membrane is fixedly connected with the upper end face of the plunger; the upper surface of the upper membrane is fixedly connected with an elastic component; the other end of the elastic component is connected with a pressure regulating bolt capable of rotating relatively; a first connection channel for communicating the first upper cavity with the medium channel at the outlet end is arranged between the first upper cavity and the medium channel at the outlet end; a second connection channel for communicating the second upper cavity with the medium channel at the inlet end is arranged between the second upper cavity and the medium channel at the inlet end. The differential pressure plunger automatic pressure regulating valve is of the upper-and-lower-stage outlet end pressure feedback response design, response is more sensitive, and control is more accurate.
Description
Technical field
The invention belongs to pressure regulator valve technical field, be specifically related to a kind of pressure reduction plunger automatic pressure regulator.
Background technique
Pressure regulator valve, applies to various water supply system, heating system, fire-fighting system etc., by the pressure clamp of flowing medium built in certain threshold values, guarantees isostasy, use safety.General pressure regulator valve mostly is throttle valve, is realized the adjustment of flow by the pore size of manual tune runner, thus realizes pressure adjustment, and this mode obviously can not realize the automatic adjustment of pressure, and reliability is not high.Another kind is then decompression valve type pressure regulator valve, and carry out detected pressures size mainly through diaphragm, when pressure is excessive, diaphragm is up, and the size of band movable valve plug modulating valve mouth, realizes decompression, all the time pressure is remained on certain threshold values.But this kind of pressure regulator valve is mainly used in the circulation of gas medium, corresponding liquid medium is not exclusively applicable, and this kind of decompression valve type pressure regulator valve, and degree of regulation is low, and high-pressure fluid medium can only be accomplished to reduce pressure, function singleness.
Summary of the invention
The object of the invention is to: for Problems existing in above-mentioned existing pressure regulator valve, a kind of pressure reduction plunger automatic pressure regulator is provided, be provided with upper and lower two-stage output end pressure change feedback response, make voltage-regulation voltage-stabilization sensitiveer, quick and stable.
To achieve these goals, the technical solution used in the present invention is:
A kind of pressure reduction plunger automatic pressure regulator, comprise valve body, be arranged in the medium channel of valve body, and the plunger body be arranged on medium channel cross-over configuration in valve body, upper chamber is provided with in the valve body on plunger body top, upper diaphragm is provided with in upper chamber, upper chamber is divided into the first upper chamber being in upper diaphragm top by upper diaphragm, and be in the second upper chamber of upper diaphragm bottom, upper diaphragm lower surface is fixedly connected with the upper-end surface of plunger body, the upper surface of upper diaphragm is fixedly connected with elastic member, the elastic member the other end is connected with relatively turnable regulator bolts, the first connecting passage the first upper chamber be communicated with the medium channel of outlet end is provided with between first upper chamber and the medium channel of outlet end, the second connecting passage the second upper chamber be communicated with the medium channel of entrance point is provided with between second upper chamber and the medium channel of entrance point,
Lower chambers is provided with in the valve body of plunger body bottom, lower diaphragm is provided with in lower chambers, lower chambers is divided into the first lower chambers being in lower diaphragm top by lower diaphragm, and be in the second lower chambers of lower diaphragm bottom, lower diaphragm upper surface is fixedly connected with the lower end surface of plunger body, is provided with the 3rd connecting passage the first lower chambers be communicated with the medium channel of outlet end between the first lower chambers and the medium channel of outlet end; The 4th connecting passage the second lower chambers be communicated with the medium channel of entrance point is provided with between second lower chambers and the medium channel of entrance point.
Preferably, valve body top is also provided with the land be fixedly connected with valve body, and the land the other end is also fixedly connected with valve gap, and the upper chamber described in being formed in the middle of valve body, land and valve gap, upper diaphragm is fixedly connected between valve body and land.
Preferably, polytetrafluoroethylsealed sealed packing ring is provided with between valve gap and land, described regulator bolts is through valve gap, and polytetrafluoroethylsealed sealed circle and Gland is also provided with between regulator bolts and valve gap, polytetrafluoroethylsealed sealed circle is between polytetrafluoroethylsealed sealed packing ring and Gland, Gland is fixedly connected with valve gap, and regulator bolts is threaded with Gland.
Preferably, valve body lower portion is also provided with the lower cover be fixedly connected with valve body, and the lower chambers described in valve body and lower cover centre are formed, lower diaphragm is fixedly connected between valve body and lower cover.
Preferably, be also provided with bottom described lower cover and be blocked in letting out of connection second lower chambers and valve body outside and let out slag screw in cinder hole.
Preferably, bottom plunger body, spacing housing screw is also set.
Preferably, the first described connecting passage, the second connecting passage, the 3rd connecting passage all adopt pipe type to be connected with the 4th connecting passage, and are all arranged on valve body outside.
Preferably, described elastic member is connected by plane rolling bearing with between regulator bolts.
Preferably, described upper diaphragm and lower diaphragm all adopt rubber membrane.
Owing to have employed technique scheme, the invention has the beneficial effects as follows:
A kind of pressure reduction plunger automatic pressure regulator of the present invention, plunger body upper and lower is respectively arranged with the Pressure difference feedback design to inlet pressure and outlet pressure, and the elastic force that column cock body gravity and elastic member apply, plunger body is made to be in the quick condition of stress balance all the time, when the pressure of outlet end is high or low, the pressure of outlet end can be controlled by the metering orifice of adjustable column cock body, realize pressure regulation, control more rapidly with accurate.
Accompanying drawing explanation
Fig. 1 is pressure reduction plunger automatic pressure regulator sectional view of the present invention.
Mark in figure: 11-regulator bolts, 12-plane rolling bearing, 13-valve gap, the polytetrafluoroethylsealed sealed packing ring of 14-, 15-elastic member, 16-upper diaphragm, 17-first connecting passage, 18-valve body, 19-the 3rd connecting passage, 20-lower chambers, 201-first lower chambers, 202-second lower chambers, 21-lets out slag screw, diaphragm under 22-, 23-the 4th connecting passage, 24-second connecting passage, 25-upper chamber, 251-first upper chamber, 252-second upper chamber, 26-land, the polytetrafluoroethylsealed sealed circle of 27-, 28-Gland, 29-medium channel, 30-plunger body, the spacing housing screw of 31-, 32-lower cover.
Embodiment
With reference to Fig. 1, a kind of pressure reduction plunger automatic pressure regulator, comprise valve body 18, be arranged in the medium channel 29 of valve body 18, and the plunger body 30 be arranged on medium channel 29 cross-over configuration in valve body 18, upper chamber 25 is provided with in the valve body 18 on plunger body 30 top, upper diaphragm 16 is provided with in upper chamber 25, upper chamber 25 is divided into the first upper chamber 251 being in upper diaphragm 16 top by upper diaphragm 16, and be in the second upper chamber 252 of upper diaphragm 16 bottom, upper diaphragm 16 lower surface is fixedly connected with the upper-end surface of plunger body 30, the upper surface of upper diaphragm 16 is fixedly connected with elastic member 15, elastic member 15 is preferably spring, elastic member 15 the other end is connected with relatively turnable regulator bolts 11, the first connecting passage 17 the first upper chamber 251 be communicated with the medium channel 29 of outlet end is provided with between first upper chamber 251 and the medium channel 29 of outlet end, the second connecting passage 24 the second upper chamber 252 be communicated with the medium channel 29 of entrance point is provided with between second upper chamber 252 and the medium channel 29 of entrance point.
Lower chambers 20 is provided with in the valve body 18 of plunger body 30 bottom, lower diaphragm 22 is provided with in lower chambers 20, lower chambers 20 is divided into the first lower chambers 201 being in lower diaphragm 22 top by lower diaphragm 22, and be in the second lower chambers 202 of lower diaphragm 22 bottom, lower diaphragm 22 upper surface is fixedly connected with the lower end surface of plunger body 30, is provided with the 3rd connecting passage 19 the first lower chambers 201 be communicated with the medium channel 29 of outlet end between the first lower chambers 201 and the medium channel 29 of outlet end; The 4th connecting passage 23 the second lower chambers 202 be communicated with the medium channel 29 of entrance point is provided with between second lower chambers 202 and the medium channel 29 of entrance point.
Valve body 18 top is also provided with the land 26 be fixedly connected with valve body 18, land 26 the other end is also fixedly connected with valve gap 13, upper chamber 25 described in valve body 18, land 26 are formed with valve gap 13 is middle, upper diaphragm 16 is fixedly connected between valve body 18 and land 26, upper diaphragm 16 is changed convenient.
Guarantee that the installation position of regulator bolts 11 has better sealing, polytetrafluoroethylsealed sealed packing ring 14 is provided with between valve gap 13 and land 26, described regulator bolts 11 is through valve gap 13, and between regulator bolts 11 and valve gap 13, be also provided with polytetrafluoroethylsealed sealed circle 27 and Gland 28, polytetrafluoroethylsealed sealed circle 27 is between polytetrafluoroethylsealed sealed packing ring 14 and Gland 28, Gland 28 is fixedly connected with valve gap 13, and regulator bolts 11 is threaded with Gland 28.
In order to make lower diaphragm 22 change convenient, valve body 18 bottom is also provided with the lower cover 32 be fixedly connected with valve body 18, and the lower chambers 20 described in valve body 18 is formed with lower cover 32 is middle, lower diaphragm 22 is fixedly connected between valve body 18 and lower cover 32.
Also being provided with bottom lower cover 32 and being blocked in letting out of connection second lower chambers 202 and valve body 18 outside and letting out slag screw 21 in cinder hole, after taking off and letting out slag screw 21, namely by letting out cinder hole, the dregs in the second lower chambers 202 or waste liquid being discharged.
Spacing housing screw 31 is also set bottom plunger body 30, plunger body 30 is by the stop screw of bottom, prevent plunger body 30 from contacting completely with bottom the second lower chambers 202, if the bottom of plunger body 30 contacts completely with the bottom of the second lower chambers 202, easy formation absorption, forms absorption, and two are just difficult to separately, by being provided with spacing housing screw 31, the bottom of the bottom of plunger body 30 and the second lower chambers 202 can be kept to there is certain gap.
First connecting passage 17, second connecting passage 24, the 3rd connecting passage 19 all adopt pipe type to be connected with the 4th connecting passage 23, and it is outside to be all arranged on valve body 18, are convenient to change.
Being connected by plane rolling bearing 12 between elastic member 15 with regulator bolts 11, when selecting regulator bolts 11, extrude or decontrol elastic member 15 by regulator bolts 11, and elastic member 15 and then can not rotating along with the rotation of regulator bolts 11.
Upper diaphragm 16 and lower diaphragm 22 all adopt rubber membrane, highly sensitive.
When medium circulates at medium channel 29, first upper chamber 251 is communicated with the outlet end of medium channel 29, second upper chamber 252 is communicated with the entrance point of medium channel 29, the upper surface of such upper diaphragm 16 is then subject to downward thrust P2 × S2, wherein P2 is outlet end pressure medium, and S2 is the area of contact of upper diaphragm 16 upper surface and flowing medium; The lower surface of upper diaphragm 16 is then subject to thrust P1 × S1 upwards, wherein P1 is entrance point pressure medium, S1 is the area of contact of upper diaphragm 16 lower surface and flowing medium, and because plunger body 30 top connects elastic member 15, then plunger body 30 is subject to downward spring force F.First lower chambers 201 is communicated with the outlet end of medium channel 29, second lower chambers 202 is communicated with the entrance point of medium channel 29, descend the upper surface of diaphragm 22 to be then subject to downward thrust P2 × S3 like this, wherein S3 is the area of contact of lower diaphragm 22 upper surface and flowing medium; The lower surface of lower diaphragm 22 is then subject to thrust P1 × S4 upwards, and wherein S4 is the area of contact of lower diaphragm 22 lower surface and flowing medium.
Because upper diaphragm 16 is fixedly connected with plunger body 30 respectively with lower diaphragm 22, then the stressed two ends being transferred to plunger body 30 respectively of upper diaphragm 16 and lower diaphragm 22.Plunger body 30 self gravitation is set as G, then plunger body 30 is subject to downward making a concerted effort for P2 × S2+P2 × S3+F+G, be subject to upwards make a concerted effort for P1 × S1+P1 × S4, equal with joint efforts with downward when making a concerted effort upwards, then plunger body 30 remains on neutral buoyancy state.When the relative setting pressure of outlet pressures P2 increases, then plunger body 30 is subject to downward increase of making a concerted effort, plunger body 30 is moved down, the metering orifice of plunger body 30 by flowing medium reduce, then pressure P 2 minimizing of outlet end, makes plunger body 30 again be in a neutral buoyancy state.When the relative setting pressure of outlet pressures P2 reduces, in like manner, plunger body 30 moves up, the metering orifice increasing plunger body 30 by flowing medium, then pressure P 2 increase of outlet end, makes plunger body 30 again be in a neutral buoyancy state.
Meanwhile, by regulating regulator bolts 11, i.e. the spring force F of adjustable elastic parts 15, thus the position of adjustable column cock body 30, and then setting outlet pressures P2 size.
By the stressed refinement by plunger body 30, and form feedback response formula with outlet pressures and be connected, thus can the position of adjustable column cock body 30 accurately, finally realize the object accurately controlling outlet pressures.
Claims (9)
1. a pressure reduction plunger automatic pressure regulator, comprise valve body (18), be arranged in the medium channel (29) of valve body (18), and the plunger body (30) be arranged on medium channel (29) cross-over configuration in valve body (18), it is characterized in that, upper chamber (25) is provided with in the valve body (18) on plunger body (30) top, upper diaphragm (16) is provided with in upper chamber (25), upper chamber (25) is divided into the first upper chamber (251) being in upper diaphragm (16) top by upper diaphragm (16), and be in second upper chamber (252) of upper diaphragm (16) bottom, upper diaphragm (16) lower surface is fixedly connected with the upper-end surface of plunger body (30), the upper surface of upper diaphragm (16) is fixedly connected with elastic member (15), elastic member (15) the other end is connected with relatively turnable regulator bolts (11), the first connecting passage (17) the first upper chamber (251) be communicated with the medium channel (29) of outlet end is provided with between first upper chamber (251) and the medium channel (29) of outlet end, the second connecting passage (24) the second upper chamber (252) be communicated with the medium channel (29) of entrance point is provided with between second upper chamber (252) and the medium channel (29) of entrance point,
Lower chambers (20) is provided with in the valve body (18) of plunger body (30) bottom, lower diaphragm (22) is provided with in lower chambers (20), lower chambers (20) is divided into the first lower chambers (201) being in lower diaphragm (22) top by lower diaphragm (22), and be in second lower chambers (202) of lower diaphragm (22) bottom, lower diaphragm (22) upper surface is fixedly connected with the lower end surface of plunger body (30), the 3rd connecting passage (19) the first lower chambers (201) be communicated with the medium channel (29) of outlet end is provided with between first lower chambers (201) and the medium channel (29) of outlet end, the 4th connecting passage (23) the second lower chambers (202) be communicated with the medium channel (29) of entrance point is provided with between second lower chambers (202) and the medium channel (29) of entrance point.
2. pressure reduction plunger automatic pressure regulator according to claim 1, it is characterized in that, valve body (18) top is also provided with the land (26) be fixedly connected with valve body (18), land (26) the other end is also fixedly connected with valve gap (13), upper chamber (25) described in valve body (18), land (26) are formed with valve gap (13) is middle, upper diaphragm (16) is fixedly connected between valve body (18) and land (26).
3. pressure reduction plunger automatic pressure regulator according to claim 2, it is characterized in that, polytetrafluoroethylsealed sealed packing ring (14) is provided with between valve gap (13) and land (26), described regulator bolts (11) is through valve gap (13), and between regulator bolts (11) and valve gap (13), be also provided with polytetrafluoroethylsealed sealed circle (27) and Gland (28), polytetrafluoroethylsealed sealed circle (27) is positioned between polytetrafluoroethylsealed sealed packing ring (14) and Gland (28), Gland (28) is fixedly connected with valve gap (13), regulator bolts (11) is threaded with Gland (28).
4. pressure reduction plunger automatic pressure regulator according to claim 1, it is characterized in that, valve body (18) bottom is also provided with the lower cover (32) be fixedly connected with valve body (18), lower chambers (20) described in valve body (18) is formed with lower cover (32) is middle, lower diaphragm (22) is fixedly connected between valve body (18) and lower cover (32).
5. pressure reduction plunger automatic pressure regulator according to claim 4, it is characterized in that, described lower cover (32) bottom is also provided with and is blocked in outside the letting out of connection second lower chambers (202) and valve body (18) and lets out slag screw (21) in cinder hole.
6. pressure reduction plunger automatic pressure regulator according to claim 1, is characterized in that, plunger body (30) bottom also arranges spacing housing screw (31).
7. pressure reduction plunger automatic pressure regulator according to claim 1, it is characterized in that, described the first connecting passage (17), the second connecting passage (24), the 3rd connecting passage (19) all adopt pipe type to be connected with the 4th connecting passage (23), and it is outside to be all arranged on valve body (18).
8. pressure reduction plunger automatic pressure regulator according to claim 1, is characterized in that, described elastic member (15) is connected by plane rolling bearing (12) with between regulator bolts (11).
9. pressure reduction plunger automatic pressure regulator according to claim 1, is characterized in that, described upper diaphragm (16) and lower diaphragm (22) all adopt rubber membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600347.4A CN105179769B (en) | 2015-09-17 | 2015-09-17 | A kind of pressure difference plunger automatic pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510600347.4A CN105179769B (en) | 2015-09-17 | 2015-09-17 | A kind of pressure difference plunger automatic pressure regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105179769A true CN105179769A (en) | 2015-12-23 |
| CN105179769B CN105179769B (en) | 2017-07-18 |
Family
ID=54902063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510600347.4A Active CN105179769B (en) | 2015-09-17 | 2015-09-17 | A kind of pressure difference plunger automatic pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105179769B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387837A (en) * | 2017-09-18 | 2017-11-24 | 宝鸡泰华磁机电技术研究所有限公司 | With the medium runner structure for preventing valve cavity precipitation dregs |
| CN107725847A (en) * | 2017-11-14 | 2018-02-23 | 西安交通大学 | A kind of Direct Action Type two-way pressure-reducing valve using pressure feedback |
| CN107990021A (en) * | 2017-11-14 | 2018-05-04 | 西安交通大学 | A kind of direct-acting triple pressure reducing valve with pressure feedback structure |
| CN109764142A (en) * | 2019-01-29 | 2019-05-17 | 湖北三江航天红峰控制有限公司 | A kind of trimmer valve |
| CN112933315A (en) * | 2021-02-01 | 2021-06-11 | 温州医科大学附属第二医院（温州医科大学附属育英儿童医院） | Pressure regulating device for hemodialysis machine |
| CN114673818A (en) * | 2022-03-24 | 2022-06-28 | 浙江大学 | Self-operated multi-stage pressure reducing valve with feedforward-feedback control function and method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250298B1 (en) * | 1986-06-20 | 1990-02-07 | ABX , Société Anonyme dite | Two- or three-way micro-electric valve with a double sealing diaphragm |
| WO1999023402A1 (en) * | 1997-11-05 | 1999-05-14 | Babson Bros. Co. | Double diaphragm shut-off valve |
| CN2376560Y (en) * | 1999-04-14 | 2000-05-03 | 顺德市乐从镇大墩玻璃钢厂 | Gas/vapour double function diaphragm valve for water heater |
| CN2422495Y (en) * | 2000-03-09 | 2001-03-07 | 阎洪昌 | Double clack diaphragm hydraulic valve |
| CN2721994Y (en) * | 2004-08-20 | 2005-08-31 | 江苏亚太泵业有限公司 | Multifunctional transmitting hydraulic adjusting valve |
| CN201487220U (en) * | 2009-04-03 | 2010-05-26 | 杜毅 | Multifunctional hydraulic control valve |
| CN203009948U (en) * | 2012-11-16 | 2013-06-19 | 张意立 | Internal-external thread head pressure regulating valve |
| CN205013784U (en) * | 2015-09-17 | 2016-02-03 | 付明 | Pressure differential plunger automatic pressure regulator |
-
2015
- 2015-09-17 CN CN201510600347.4A patent/CN105179769B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250298B1 (en) * | 1986-06-20 | 1990-02-07 | ABX , Société Anonyme dite | Two- or three-way micro-electric valve with a double sealing diaphragm |
| WO1999023402A1 (en) * | 1997-11-05 | 1999-05-14 | Babson Bros. Co. | Double diaphragm shut-off valve |
| CN2376560Y (en) * | 1999-04-14 | 2000-05-03 | 顺德市乐从镇大墩玻璃钢厂 | Gas/vapour double function diaphragm valve for water heater |
| CN2422495Y (en) * | 2000-03-09 | 2001-03-07 | 阎洪昌 | Double clack diaphragm hydraulic valve |
| CN2721994Y (en) * | 2004-08-20 | 2005-08-31 | 江苏亚太泵业有限公司 | Multifunctional transmitting hydraulic adjusting valve |
| CN201487220U (en) * | 2009-04-03 | 2010-05-26 | 杜毅 | Multifunctional hydraulic control valve |
| CN203009948U (en) * | 2012-11-16 | 2013-06-19 | 张意立 | Internal-external thread head pressure regulating valve |
| CN205013784U (en) * | 2015-09-17 | 2016-02-03 | 付明 | Pressure differential plunger automatic pressure regulator |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387837A (en) * | 2017-09-18 | 2017-11-24 | 宝鸡泰华磁机电技术研究所有限公司 | With the medium runner structure for preventing valve cavity precipitation dregs |
| CN107725847A (en) * | 2017-11-14 | 2018-02-23 | 西安交通大学 | A kind of Direct Action Type two-way pressure-reducing valve using pressure feedback |
| CN107990021A (en) * | 2017-11-14 | 2018-05-04 | 西安交通大学 | A kind of direct-acting triple pressure reducing valve with pressure feedback structure |
| CN107725847B (en) * | 2017-11-14 | 2019-05-21 | 西安交通大学 | A kind of Direct Action Type two-way pressure reducing valve using pressure feedback |
| CN107990021B (en) * | 2017-11-14 | 2019-11-26 | 西安交通大学 | A kind of direct-acting triple pressure reducing valve with pressure feedback structure |
| CN109764142A (en) * | 2019-01-29 | 2019-05-17 | 湖北三江航天红峰控制有限公司 | A kind of trimmer valve |
| CN112933315A (en) * | 2021-02-01 | 2021-06-11 | 温州医科大学附属第二医院（温州医科大学附属育英儿童医院） | Pressure regulating device for hemodialysis machine |
| CN114673818A (en) * | 2022-03-24 | 2022-06-28 | 浙江大学 | Self-operated multi-stage pressure reducing valve with feedforward-feedback control function and method thereof |
| CN114673818B (en) * | 2022-03-24 | 2022-12-13 | 浙江大学 | Self-operated multi-stage pressure reducing valve with feedforward-feedback control function and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105179769B (en) | 2017-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105179769A (en) | Differential pressure plunger automatic pressure regulating valve | |
| CN102678994B (en) | Automatic decompression voltage and current stabilizer | |
| CN106015675B (en) | A kind of one-way pressure-regulating overflow valve with thrust bearing | |
| CN104329485A (en) | Multifunctional combination valve | |
| CN205013784U (en) | Pressure differential plunger automatic pressure regulator | |
| CN204042100U (en) | Two gas kind pressure maintaining valve | |
| CN102853155B (en) | Adjustable pressure reducing valve with high pressure reducing ratio | |
| CN203757110U (en) | Self-operated internal pressure tapping type adjusting valve | |
| CN204961948U (en) | Diaphragm type liquid air -vent valve | |
| CN105971999A (en) | Temperature-controlling water valve | |
| CN109307084B (en) | Valve capable of adjusting flow and adjusting method thereof | |
| US1507073A (en) | Pressure-reducing valve | |
| CN209041686U (en) | A kind of piston type branch pipe pressure-reducing valve | |
| CN202834264U (en) | Adjustable pressure reducing valve with high pressure reducing ratio | |
| CN204628669U (en) | A kind of U-shaped pin quick-acting type reduction valve | |
| CN210484785U (en) | Self-adjusting ball valve | |
| CN210566498U (en) | Pressure reducing valve for water | |
| CN208749708U (en) | A kind of two-way unidirectional sequence valve arrangement | |
| CN105202239A (en) | Diaphragm-type liquid pressure regulating valve | |
| CN202418767U (en) | Overflow valve | |
| CN202597827U (en) | Novel automatic pressure reducing and stabilizing and current stabilizing device | |
| RU2370633C1 (en) | Adjustable pressure regulator | |
| CN204403012U (en) | The ultrahigh pressure direct acting relief valve that a kind of air pressure controls | |
| CN204628648U (en) | A kind of Multifunctional combined valve | |
| CN204004641U (en) | Dynamic differential pressure balancing valve with locking valve and outlet valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170622 Address after: 610306 Sichuan City, Qingbaijiang City, the town of the Dragon King Village cleaning group of the five group of Applicant after: Chengdu Custer Precision Casting Co., Ltd. Address before: 610199 Sichuan Province, Longquanyi District, Longquanyi, East Road, No. 2, building 1, unit 6, building 10, No. 1020 Applicant before: Fu Ming |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |