CN107191653B - Water hammer bleeder valve - Google Patents
Water hammer bleeder valve Download PDFInfo
- Publication number
- CN107191653B CN107191653B CN201710494081.9A CN201710494081A CN107191653B CN 107191653 B CN107191653 B CN 107191653B CN 201710494081 A CN201710494081 A CN 201710494081A CN 107191653 B CN107191653 B CN 107191653B
- Authority
- CN
- China
- Prior art keywords
- valve
- piston
- sealing
- hole
- seat
- 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.)
- Active
Links
Images
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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/12—Covers for housings
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Fluid-Driven Valves (AREA)
Abstract
The invention provides a water hammer relief valve, which comprises a valve body, a valve cover, a sealing seat, a valve sleeve, a piston, a combined valve shaft and an elastic component, wherein the valve cover is arranged above the valve body, the sealing seat and the valve sleeve are arranged in the valve body, the piston is in sealing fit with the sealing seat and in sliding seal fit with the valve sleeve relatively to the valve sleeve, the combined valve shaft penetrates through the valve cover and the piston and can move up and down relatively to the piston by overcoming the elastic force of the elastic component, the combined valve shaft is in sealing fit with the piston and the valve cover, the valve body is provided with a water inlet channel and a water outlet channel, the piston, the valve sleeve and the valve cover form an adjusting cavity, the combined valve shaft is provided with a water inlet hole communicated with the water inlet channel and the adjusting cavity, and the piston is also provided with a water outlet hole communicated with the water outlet channel.
Description
Technical Field
The invention relates to the field of valves, in particular to a water hammer relief valve.
Background
At present, in a clean water pipeline system, a pressure relief safety valve is generally used, and the valve is a direct-acting quick-opening quick-closing type or pilot type relief valve which can be opened for pressure relief after the pressure of a pipeline exceeds the set value of the pressure relief safety valve; however, when the pump is suddenly stopped, the valve is quickly closed, so that the circulation flow rate in the outlet pipeline of the valve suddenly drops, reflux impact pressure is generated, impact pressure wave transmission is generated by speed mutation, the transmission speed is very high, the pressure of the outlet section of the valve can be increased to be several times of rated pressure, the phenomenon is water hammer phenomenon in the pipeline, and the phenomenon can cause the valve or the pipeline to break, so that accidents are generated.
The instant high pressure generated by the water hammer is quick in time, and the pressure relief safety valve needs a certain time to be opened, so that the instant high pressure generated by the water hammer cannot be timely and quickly relieved; in addition, after the pressure relief safety valve is opened for pressure relief, when the pressure of the pipeline is restored to a set pressure value, the pressure relief safety valve can be quickly closed, so that the pipeline forms secondary instantaneous high pressure; the secondary instantaneous high pressure is formed by the excessively high closing speed of the pressure relief safety valve, and can also generate a certain damage effect on the pipeline.
In view of this, it is necessary to design a water hammer relief valve to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to solve the technical problems that: the water hammer relief valve not only can rapidly open the pressure relief and eliminate the water hammer, but also can control the closing speed of the valve.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a water hammer bleeder valve, includes the valve body, installs the valve gap in the valve body top, installs at the inside sealing seat of valve body and valve pocket and with sealing seat sealing fit and relative valve pocket sliding seal fit's piston, water hammer bleeder valve still includes the combination valve shaft that runs through valve gap and piston and the elastic component who is connected with the combination valve shaft, the elasticity that the elastic component was overcome to the combination valve shaft can reciprocate relative to the piston, and combination valve shaft and the equal sealing fit of piston and valve gap, the valve body is equipped with inlet channel and outlet channel, piston, valve pocket and valve gap form the regulating chamber, be equipped with the inlet port of intercommunication inlet channel and regulating chamber on the combination valve shaft, still be equipped with the apopore of intercommunication outlet channel on the piston.
Further, the combined valve shaft comprises a throttle rod capable of adjusting the size of the water inlet hole.
Further, the combined valve shaft comprises a main valve core matched with the piston and a secondary valve core connected with the main valve core and matched with the valve cover, the water inlet hole comprises an axial through hole arranged on the main valve core and a radial through hole arranged on the secondary valve core, the axial through hole is communicated with the radial through hole, and the throttle rod is inserted from the upper part of the secondary valve core and is stopped at the intersection of the axial through hole and the radial through hole.
Further, the sealing seat comprises a sealing part and a supporting part which are arranged in parallel; the valve sleeve is arranged between the supporting part and the valve cover; the piston comprises a lower piston wall in sealing fit with the sealing part, an upper piston wall which is positioned above the supporting part and in sealing fit with the valve sleeve, and an intermediate wall which is connected with the lower piston wall and the upper piston wall, and the water outlet hole is formed in the intermediate wall.
Further, the main valve core is provided with a first sealing part in sealing fit with the lower wall of the piston and a second sealing part in sealing fit with the upper wall of the piston, the first sealing part and the second sealing part are both provided with a first sealing ring, a first valve seat for fixing the first sealing ring is arranged on the first sealing part, and a filter screen is arranged on the first valve seat.
Further, one end of the auxiliary valve core is in threaded connection with the second sealing part; the other end of the auxiliary valve core penetrates through the valve cover and is convexly provided with an elastic seat for supporting the elastic component, and the elastic seat is arranged above the valve cover.
Further, the valve cover comprises a flat plate part matched with the valve body and a containing cavity formed by extending upwards from the flat plate part, a second valve seat matched with the auxiliary valve core in a sealing mode, a second sealing ring arranged on the second valve seat and a fixed cover arranged on the flat plate part and used for fixing the second sealing ring are arranged on the flat plate part, and the elastic part and the elastic seat are arranged in the containing cavity.
Further, a pressing plate for pressing the elastic component is arranged above the accommodating cavity, a guide part extending into the accommodating cavity is arranged on the pressing plate in a downward extending mode, and the elastic component is located in the guide part.
Further, the throttle lever penetrates into the accommodating cavity and the auxiliary valve core from the upper part of the pressing plate, the throttle lever is in threaded fit with the auxiliary valve core, and the throttle lever is provided with a conical adjusting part positioned at the intersection of the axial through hole and the radial through hole.
Further, an adjusting nut in threaded fit with the throttle lever is arranged above the pressing plate.
Compared with the prior art, the invention has at least the following advantages:
1. the invention combines the advantages of the spring type pressure relief valve and the differential type pressure relief valve, solves the problem that the spring force of the spring type pressure relief valve cannot be large and the problem that the response speed of the differential type pressure relief valve is low, and further achieves the effect of rapidly opening the pressure relief valve and eliminating the water hammer.
2. The invention can control the closing speed of the valve by adjusting the water inlet area of the water inlet hole in the middle of the combined valve shaft through the throttle lever, and avoid the valve from forming a valve closing water hammer due to quick closing.
3. The water hammer relief valve does not need an external configuration guide pipe and a guide valve, is convenient to install, and is freeze-proof and theft-proof; the integrated differential control structure has compact structure and small failure rate.
Drawings
Fig. 1 is a schematic structural view of a water hammer relief valve of the present invention.
Fig. 2 is an enlarged partial view of portion a of the water hammer relief valve shown in fig. 1.
Fig. 3 is an enlarged partial view of section B of the water hammer relief valve shown in fig. 1.
FIG. 4 is a schematic view of the main valve spool assembly of the water hammer relief valve of the present invention.
Fig. 5 is a schematic structural view of a secondary spool assembly in a water hammer relief valve of the present invention.
Detailed Description
The structure and summary of the water hammer relief valve of the present invention are described below in conjunction with fig. 1-5.
A water hammer relief valve comprises a valve body 1, a valve cover 2 arranged above the valve body 1, a sealing seat 3 and a valve sleeve 4 arranged inside the valve body 1, a piston 5 in sealing fit with the sealing seat 3 and in sliding sealing fit with the valve sleeve 4, a combined valve shaft 6 penetrating through the valve cover 2 and the piston 5, an elastic component 7 connected with the combined valve shaft 6, and a pressing plate 8 arranged above the valve cover 2 and pressing the elastic component 7.
The valve body 1 comprises a water inlet channel 9 and a water outlet channel 10 with collinear central lines, an isolation inner wall 11 arranged inside the valve body 1 and a mounting channel 12 positioned above the valve body 1. The water inlet channel 9 and the water outlet channel 10 are separated from communication by an isolating inner wall 11. The isolating inner wall 11 is provided with a valve port 13 for installing the sealing seat 3. The mounting channel 12 is internally provided with a convex shoulder 14 (see fig. 2 in detail) for mounting the sealing seat 3.
The valve cover 2 comprises a flat plate part 15 matched with the valve body 1 and a containing cavity 16 formed by extending upwards from the flat plate part 15. The flat plate portion 15 is fixed to the valve body 1 by a plurality of bolts.
The seal holder 3 includes a seal portion 17 and a support portion 18 arranged in parallel. The sealing portion 17 is mounted on the valve port 13. The support 18 is mounted on the shoulder 14.
The valve sleeve 4 is arranged between the support 18 and the valve cover 2. The upper surface of the valve sleeve 4 is in sealing fit with the valve cover 2.
The piston 5 comprises a lower piston wall 19 in sealing engagement with the sealing portion 17, an upper piston wall 20 above the support portion 18 in sealing engagement with the valve sleeve 4 and an intermediate wall 21 connecting the lower piston wall 19 and the upper piston wall 20. A third sealing ring is arranged between the lower piston wall 19 and the sealing part 17. The piston upper wall 20, the valve sleeve 4 and the flat plate portion 15 of the valve cap 2 form an adjustment chamber 22. The intermediate wall 21 is further provided with a water outlet hole 23 communicating with the water outlet channel 10.
The combined valve shaft 6 can move up and down relative to the piston 5 against the elastic force of the elastic part 7. The combined valve shaft 6 is in sealing fit with the piston 5 and the valve cover 2. The combined valve shaft 6 is provided with a water inlet hole which is communicated with the water inlet channel 9 and the adjusting cavity 21. The combined valve shaft 6 comprises a throttle lever 24 capable of adjusting the size of a water inlet hole, a main valve core 25 matched with the piston 5 and a secondary valve core 26 connected with the main valve core 25 and matched with the valve cover 2. The inlet opening comprises an axial through hole 27 provided in the main spool 25 and a radial through hole 28 provided in the auxiliary spool 26. The axial through holes 27 are communicated with the radial through holes 28.
The throttle lever 24 penetrates into the housing chamber 16 of the valve cap 2 and the secondary spool 26 from above the pressure plate 8, and is inserted from above the secondary spool 26 and ends at the intersection of the axial through hole 27 and the radial through hole 28. The throttle lever 24 is threadedly engaged with the sub-spool 26. The throttle lever 24 is provided with a conical adjustment 29 at the intersection of the axial through bore 27 and the radial through bore 28. The throttle lever 24 changes the sectional areas of the conical adjusting part 29, the axial through hole 27 and the radial through hole 28 by moving up and down, thereby achieving the effect of adjusting the flow rate.
The main valve element 25 is provided with a first sealing portion 30 in sealing engagement with the lower piston wall 19 and a second sealing portion 31 in sealing engagement with the upper piston wall 20. The first sealing portion 30 and the second sealing portion 31 are each provided with a first seal ring 32. The first seal portion 30 is provided with a first valve seat 33 to which the first seal ring 32 is fixed. The first valve seat 33 is provided with a filter screen 34. The filter screen 34 can filter out large particle impurities in the medium to prevent the water inlet from being blocked.
One end of the sub spool 26 is screwed to the second sealing portion 31 of the main spool 25. The other end of the auxiliary valve core 26 passes through the flat plate part 15 of the valve cover 2 and is provided with an elastic seat 35 for supporting the elastic component 7. The elastic seat 35 is located above the flat plate portion 15. The flat plate 15 is provided with a second valve seat 36 in sealing engagement with the sub-valve element 26, a second seal ring 37 mounted on the second valve seat 36, and a fixing cover 38 (see fig. 3 for details) mounted on the flat plate 15 and fixing the second seal ring 37. The elastic member 7 and the elastic seat 34 are located inside the housing cavity 16.
The cross sections of the first sealing ring 32, the second sealing ring 37 and the third sealing ring are all in a convex shape, and the cross sections are of self-sealing structures, so that the sealing performance is improved.
The elastic member 7 provides an elastic force using a spring. One end of the elastic part 7 is sleeved on the spring seat 34; the other end is pressed under the pressing plate 8.
The pressing plate 8 is fixedly arranged above the accommodating cavity 16 through threads. The pressure plate 8 extends downwardly with a guide 39 which extends into the interior of the receiving cavity 15. The elastic member 7 is located inside the guide 39. An adjusting nut 40 which is in threaded fit with the throttle lever 24 is also arranged above the pressing plate 8. The adjusting nut 40 can adjust the length of the pressing plate 8 extending into the accommodating cavity 16, and further change the elastic force of the elastic component 7, so as to adjust the opening pressure of the combined valve shaft 6.
The working principle of the water hammer relief valve of the invention is as follows:
1. when the valve is in the closed position, the elastic force of the elastic part 7 is regulated by the regulating nut 40 to push the combined valve shaft 6 open when the water pressure is over-pressure, at the moment, the water pressure of the water inlet channel 9 enters the regulating cavity 22 from the water inlet hole in the center of the combined valve shaft 6, and as the sectional area S2 of the upper wall 20 of the piston corresponding to the regulating cavity is larger than the sectional area S1 of the lower wall 18 of the piston, (S2 > S1, P1=P2), the valve is closed under the water pressure;
2. when the system is over-pressurized, the system pressure is larger than the elastic force of the elastic part 7, the combined valve shaft 6 is pushed away, at the moment, the seal between the combined valve shaft 6 and the lower piston wall 19 is broken for the first time, and the pressure of the water inlet channel 9 is released at the first time; simultaneously, along with the upward movement of the combined valve shaft 6, the seal between the piston upper wall 20 and the combined valve shaft 6 is broken at the same time, and the pressure water in the regulating cavity 22 is quickly released, so that the pressure in the regulating cavity 22 is quickly zero (p2=0), the piston moves upwards quickly under the hydraulic thrust of the water inlet channel 9, the seal between the piston 5 and the sealing seat 3 is broken, the large water leakage port of the valve is quickly opened, and the pressure is quickly released.
3. When the system pressure is reduced and is lower than the set pressure, the elastic force of the elastic component 7 is larger than the medium pressure to act on the combined valve shaft 6, the elastic component 7 pushes the combined valve shaft 6 to move downwards to reset, at the moment, the combined valve shaft 6 forms a seal with the upper wall and the lower wall of the piston 5, at the moment, the pressure of the water inlet channel enters the adjusting cavity 22 from the water inlet hole in the middle of the combined valve shaft 6, the sectional area of the upper wall 20 of the piston is larger than the sectional area of the lower wall of the piston, under the same water pressure condition, the thrust of the adjusting cavity 22 is larger than the water pressure thrust of the water inlet channel, the piston 5 starts to move downwards to close the valve, and the speed of the piston moves downwards is dependent on the water inlet speed of pressure water in the adjusting cavity 22, so that the water inlet area of the water inlet hole in the middle of the combined valve shaft 6 is adjusted through the throttle lever 24, the closing speed of the valve can be controlled, and the valve is prevented from forming a valve closing water hammer due to quick closing.
In summary, the above is only a preferred embodiment of the present invention, and should not be used to limit the scope of the present invention. All simple and equivalent changes and modifications made in accordance with the claims and the specification should be considered as falling within the scope of the present invention.
Claims (10)
1. The utility model provides a water hammer bleeder valve, includes the valve body, installs the valve gap in the valve body top, installs inside sealing seat and the valve pocket of valve body and with sealing seat sealing fit and relative valve pocket sliding seal matched's piston, its characterized in that: the water hammer relief valve further comprises a combined valve shaft penetrating through the valve cover and the piston and an elastic part connected with the combined valve shaft, the combined valve shaft can move up and down relative to the piston against the elastic force of the elastic part, the combined valve shaft is in sealing fit with the piston and the valve cover, the valve body is provided with a water inlet channel and a water outlet channel, the piston, the valve sleeve and the valve cover form an adjusting cavity, the combined valve shaft is provided with a water inlet hole communicated with the water inlet channel and the adjusting cavity, and the piston is also provided with a water outlet hole communicated with the water outlet channel; the combined valve shaft comprises a main valve core matched with the piston, the main valve core is provided with a first sealing part matched with the lower wall of the piston and a second sealing part matched with the upper wall of the piston, a groove is formed between the first sealing part and the second sealing part, and the groove is used as a pressure relief channel of the adjusting cavity when the combined valve shaft moves upwards.
2. The water hammer relief valve of claim 1, wherein: the combined valve shaft comprises a throttle rod capable of adjusting the size of the water inlet.
3. The water hammer relief valve of claim 2, wherein: the combined valve shaft comprises a main valve core matched with the piston and an auxiliary valve core connected with the main valve core and matched with the valve cover, the water inlet hole comprises an axial through hole arranged on the main valve core and a radial through hole arranged on the auxiliary valve core, the axial through hole is communicated with the radial through hole, and the throttle rod is inserted from the upper part of the auxiliary valve core and is stopped at the intersection of the axial through hole and the radial through hole.
4. A water hammer relief valve as defined in claim 3, wherein: the sealing seat comprises a sealing part and a supporting part which are arranged in parallel; the valve sleeve is arranged between the supporting part and the valve cover; the piston comprises a lower piston wall in sealing fit with the sealing part, an upper piston wall which is positioned above the supporting part and in sealing fit with the valve sleeve, and an intermediate wall which is connected with the lower piston wall and the upper piston wall, and the water outlet hole is formed in the intermediate wall.
5. The water hammer relief valve of claim 4, wherein: the main valve core is provided with a first sealing part in sealing fit with the lower wall of the piston and a second sealing part in sealing fit with the upper wall of the piston, the first sealing part and the second sealing part are both provided with a first sealing ring, a first valve seat for fixing the first sealing ring is arranged on the first sealing part, and a filter screen is arranged on the first valve seat.
6. The water hammer relief valve of claim 5, wherein: one end of the auxiliary valve core is in threaded connection with the second sealing part; the other end of the auxiliary valve core penetrates through the valve cover and is convexly provided with an elastic seat for supporting the elastic component, and the elastic seat is arranged above the valve cover.
7. The water hammer relief valve of claim 6, wherein: the valve cover comprises a flat plate part matched with the valve body and a containing cavity formed by extending upwards from the flat plate part, wherein a second valve seat matched with the auxiliary valve core in a sealing mode, a second sealing ring arranged on the second valve seat and a fixed cover arranged on the flat plate part and used for fixing the second sealing ring are arranged on the flat plate part, and the elastic part and the elastic seat are arranged in the containing cavity.
8. The water hammer relief valve of claim 7, wherein: the pressure plate for pressing the elastic component is arranged above the accommodating cavity, the pressure plate extends downwards to form a guide part extending into the accommodating cavity, and the elastic component is located in the guide part.
9. The water hammer relief valve of claim 8, wherein: the throttle rod penetrates into the accommodating cavity and the auxiliary valve core from the upper part of the pressing plate, the throttle rod is in threaded fit with the auxiliary valve core, and the throttle rod is provided with a conical adjusting part positioned at the intersection of the axial through hole and the radial through hole.
10. The water hammer relief valve of claim 9, wherein: and an adjusting nut in threaded fit with the throttle lever is arranged above the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710494081.9A CN107191653B (en) | 2017-06-26 | 2017-06-26 | Water hammer bleeder valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710494081.9A CN107191653B (en) | 2017-06-26 | 2017-06-26 | Water hammer bleeder valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107191653A CN107191653A (en) | 2017-09-22 |
| CN107191653B true CN107191653B (en) | 2023-07-14 |
Family
ID=59880116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710494081.9A Active CN107191653B (en) | 2017-06-26 | 2017-06-26 | Water hammer bleeder valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107191653B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373026B (en) * | 2018-11-26 | 2024-05-10 | 江汉油田兴亚工矿配件潜江有限公司 | Differential pressure type constant pressure air release valve for petroleum exploitation |
| CN109731702B (en) * | 2019-01-18 | 2020-06-26 | 青岛诺凯达机械制造有限公司 | Non-return device and drum for tubular separator with same |
| KR102431693B1 (en) * | 2021-01-21 | 2022-08-31 | 주식회사 썬프리시즌 | Back pressure type release valve |
| CN113090848B (en) * | 2021-04-28 | 2022-02-08 | 博纳斯威阀门股份有限公司 | Water hammer discharge valve |
| CN114483969A (en) * | 2022-02-23 | 2022-05-13 | 威海琅立德仪表科技有限公司 | Regulating valve capable of automatically discharging accumulated water |
| CN117432848B (en) * | 2023-12-19 | 2024-03-08 | 靖江市新世纪液压件制造有限公司 | Safety valve with automatic pressure relief structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203009946U (en) * | 2012-12-19 | 2013-06-19 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08326942A (en) * | 1995-06-05 | 1996-12-10 | Kosei Hattori | Valve body for opening valve |
| JP2004263851A (en) * | 2003-01-06 | 2004-09-24 | Tgk Co Ltd | Switching valve |
| CN101504088B (en) * | 2009-02-12 | 2012-11-28 | 白龙山 | Multifunctional general balance valve |
| JP5421059B2 (en) * | 2009-10-21 | 2014-02-19 | 豊興工業株式会社 | solenoid valve |
| CN201973267U (en) * | 2011-04-25 | 2011-09-14 | 浙江贝尔控制阀门有限公司 | High pressure regulating valve |
| CN203809703U (en) * | 2014-05-05 | 2014-09-03 | 无锡卓尔阀业有限公司 | Ultrahigh-pressure steam release valve |
| CN204083448U (en) * | 2014-09-30 | 2015-01-07 | 宁波星箭航天机械有限公司 | Guide electromagnetic valve |
| CN207145722U (en) * | 2017-06-26 | 2018-03-27 | 安徽红星阀门有限公司 | A kind of water attack release valve |
-
2017
- 2017-06-26 CN CN201710494081.9A patent/CN107191653B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203009946U (en) * | 2012-12-19 | 2013-06-19 | 武汉大禹阀门股份有限公司 | Water hammer discharge valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107191653A (en) | 2017-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107191653B (en) | Water hammer bleeder valve | |
| EP2584205B1 (en) | Time-delay valve | |
| WO2022068046A1 (en) | Pilot-operated electric proportional high-pressure relief valve | |
| KR101096870B1 (en) | A control valve with a check valve having a damping function | |
| CN110792650B (en) | Threaded cartridge type load retaining valve | |
| CN110360345B (en) | Anti-impact three-way pressure reducing valve | |
| CN201753790U (en) | Safety valve for multi-way valve | |
| CN107989848B (en) | Energy-saving sequence valve | |
| US3478776A (en) | Pressure regulating device for fluid dispensing systems | |
| CN101709799B (en) | Multifunctional sleeve type energy dissipation valve | |
| CN109826984B (en) | Pilot-operated safety valve | |
| CN207145722U (en) | A kind of water attack release valve | |
| US6286534B1 (en) | Pressure relief valve system including a pilot valve having a radial damper mechanism | |
| US4192343A (en) | Full-flow relief valve | |
| US7686039B2 (en) | Cartridge valve assembly | |
| CN110081211B (en) | One-way valve for satellite attitude and orbit control propellant supply system | |
| CN218440002U (en) | Pilot-operated type leakage-free safety pressure valve | |
| EP2821683B1 (en) | Pressure regulating valve | |
| CN2921497Y (en) | Micro-block flow-limiting non-return valve | |
| CN113309897B (en) | Case buffer structure | |
| CN210830637U (en) | Safety valve structure for piston type pressure reducer | |
| CN201714748U (en) | Safety valve for multi-way valve | |
| CN110486512B (en) | Safety valve | |
| CN210484785U (en) | Self-adjusting ball valve | |
| CN107806524B (en) | Axial-flow type water control pressure reducing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |