CN108223833B - 150MPa ultrahigh pressure fluid pressure regulating valve - Google Patents
150MPa ultrahigh pressure fluid pressure regulating valve Download PDFInfo
- Publication number
- CN108223833B CN108223833B CN201810099359.7A CN201810099359A CN108223833B CN 108223833 B CN108223833 B CN 108223833B CN 201810099359 A CN201810099359 A CN 201810099359A CN 108223833 B CN108223833 B CN 108223833B
- Authority
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- China
- Prior art keywords
- valve
- pressure regulating
- seat
- valve core
- 150mpa
- 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.)
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 91
- 239000012530 fluid Substances 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 14
- 239000011324 bead Substances 0.000 claims description 10
- 230000010349 pulsation Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 125000003003 spiro group Chemical group 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007363 regulatory process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1085—Valves; Arrangement of valves having means for limiting the opening height
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
-
- 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
- F16K35/00—Means to prevent accidental or unauthorised actuation
- F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention provides a 150MPa ultrahigh pressure fluid pressure regulating valve, and belongs to the technical field of high pressure fluid end pressure regulation. The valve comprises a valve body, wherein a valve seat is arranged in the valve body, a backwater joint is connected to the bottom of the valve body in a screwed manner, a valve core inserted into the valve seat is arranged in the valve body, the bottom of the valve core is inserted into the valve seat, the bottom of the valve core is a conical surface, a pressure regulating nut is connected to the top of the valve body in a screwed manner, and the pressure regulating nut is arranged at the top of the valve core in a pressed manner. The pressure regulating nut ensures that the position between the valve core and the valve seat is fixed, and can prevent pulsation of the plunger pump caused by the jump of the valve core after pressure regulation.
Description
Technical Field
The invention belongs to the technical field of pressure regulation of high-pressure hydraulic ends, and relates to a 150MPa ultrahigh-pressure fluid pressure regulating valve.
Background
When the pressure of the ultrahigh pressure hydraulic end is regulated, the pressure is regulated usually within the range of 0-150MPa, the pressure regulation is controlled by a pressure regulating valve, the existing ultrahigh pressure regulating valve is pressed against a valve core by using a spring, and the valve core and a valve seat can be different in opening size under the same pressure due to errors in manufacturing the spring.
Disclosure of Invention
The invention aims to solve the problems and provide a 150MPa ultrahigh pressure fluid pressure regulating valve.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a 150MPa superhigh pressure fluid air-vent valve, includes the valve body, the valve body in be equipped with the disk seat, the valve body bottom spiro union has the return water to connect, is equipped with a case of inserting in the disk seat in the valve body, case bottom insert in the disk seat and case bottom be the conical surface, the valve body top spiro union has the pressure regulating nut, the pressure regulating nut press and establish at the case top.
In the above 150MPa ultrahigh pressure fluid pressure regulating valve, a valve seat positioning sleeve is further arranged in the valve body, the valve core penetrates through the valve seat positioning sleeve, and the valve seat positioning sleeve is positioned above the valve seat and is in clamping fit with the valve seat.
In the above 150MPa ultra-high pressure fluid pressure regulating valve, the valve core is connected with a low pressure rebound reset mechanism which can generate thrust force to the valve core so as to accelerate the valve core to move in a direction away from the valve seat.
In the above-mentioned 150MPa ultra-high pressure fluid pressure regulating valve, the low pressure rebound reset mechanism comprises a spring seat which is in clamping fit with the valve core, and a spring which is sleeved on the valve core, wherein two ends of the spring respectively lean against the valve seat positioning sleeve and the spring seat.
In the 150MPa ultrahigh-pressure fluid pressure regulating valve, the valve core is clamped with a sealing ring, and the inner wall of the spring seat is clamped with the sealing ring.
In the above 150MPa ultrahigh pressure fluid pressure regulating valve, the bottom of the pressure regulating nut is detachably clamped with a nut seat, and the nut seat is pressed on the valve core.
In the above-mentioned 150MPa ultra-high pressure fluid pressure regulating valve, a pressure regulating nut locking mechanism capable of locking the pressure regulating nut in the valve body is arranged in the pressure regulating nut.
In the above-mentioned 150MPa ultra-high pressure fluid pressure regulating valve, the pressure regulating nut locking mechanism include the spiro union at the inside stop screw of pressure regulating nut to and enclose by two piece at least spacing washer and close and be the spacing collar of ring form, densely covered with the steel ball in the spacing collar, when stop screw to the inside spiro union of pressure regulating nut, stop screw's top and steel ball contact and extrusion steel ball jack-up limit washer inner wall thereby make the limit washer move to the direction that is close to the valve body inner wall and make the outer wall of limit washer jack-up the inner wall of valve body.
In the above 150MPa ultrahigh pressure fluid pressure regulating valve, the axial lead of the limit screw coincides with the axial lead of the pressure regulating nut, a positioning bead is further pressed above the steel ball in the limit ring, and the positioning bead just corresponds to the end part of the limit screw.
In the above 150MPa ultrahigh pressure fluid pressure regulating valve, the backwater joint is internally clamped with a buffer rod, the buffer rod is internally provided with an overflow channel, and the buffer rod is provided with a plurality of overflow holes communicated with the overflow channel.
Compared with the prior art, the invention has the advantages that:
1. the pressure regulating nut ensures that the position between the valve core and the valve seat is fixed, and can prevent the pulsation of the plunger pump caused by the jump of the valve core after pressure regulation.
2. The design of the buffer rod enables the overflowed high-pressure fluid to be ejected out through a plurality of small holes on the buffer rod, so that the purpose of reducing the pressure is achieved, and the high-pressure fluid is prevented from directly impacting other parts and damaging the other parts; in addition, the size and the number of the openings on the buffer rod can be set to reserve a part of pressure in the buffer rod, so that the damage of cavitation effect to the valve core and the sealing surface of the valve seat caused by bubble generated when overflowed fluid is rapidly changed from high pressure to low pressure is avoided.
3. The low-pressure rebound reset mechanism enables the valve core to act more rapidly when the pressure regulating nut is regulated to reduce the pressure.
4. The pressure regulating nut locking mechanism is arranged, and after the pressure value is set, the pressure regulating nut can be well locked.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is an exploded view of the present invention.
In the figure, a valve body 1, a valve seat 2, a water return joint 3, a valve core 4, a pressure regulating nut 5, a valve seat positioning sleeve 6, a low pressure rebound reset mechanism 7, a spring seat 8, a spring 9, a sealing ring 10, a nut seat 11, a pressure regulating nut locking mechanism 12, a limit screw 13, a limit gasket 14, a limit groove 14a, a steel ball rolling way 14b, a limit ring 15, a steel ball 16, a positioning bead 17, a buffer rod 18, an overflow channel 19, an overflow hole 20, a flow passage 100, a water inlet end 101 and a water outlet end 102.
Detailed Description
As shown in fig. 1 and 2, a 150MPa ultrahigh pressure fluid pressure regulating valve comprises a valve body 1, wherein a valve seat 2 is arranged in the valve body 1, a flow channel 100 is arranged on the valve seat 2, a water inlet end 101 and a water outlet end 102 are respectively arranged on the valve body 1 and positioned on two sides of the flow channel 100, a water return joint 3 is screwed at the bottom of the valve body 1, a valve core 4 inserted into the valve seat 2 is arranged in the valve body 1, the bottom of the valve core 4 is inserted into the valve seat 2, the bottom of the valve core 4 is a conical surface, a pressure regulating nut 5 is screwed at the top of the valve body, and the pressure regulating nut 5 is pressed at the top of the valve core 4.
The existing ultrahigh pressure regulating valve uses a spring to press a valve core, and the valve core and the valve seat can be different in opening size under the same pressure due to errors in manufacturing the spring. In addition, the structure using the spring requires a larger installation space inside the valve body, so that the pressure regulating valve cannot be miniaturized.
In this embodiment, when fluid under pressure enters the valve body 1, pressure acts on the conical surface of the valve core 4 to push the valve core 4 to move upwards, the pressure regulating nut 5 is screwed to press the valve core 4, so that pressure regulation is realized, the positions between the pressure regulating nut 5 and the valve core 4 are limited in the pressure regulating process or after the pressure regulating is finished, the valve core cannot be changed, the valve core cannot jump in the valve seat, and the plunger pump cannot have flow pulsation.
Specifically, a valve seat positioning sleeve 6 is further arranged in the valve body 1, the valve seat positioning sleeve 6 is in sealing connection with the interior of the valve body, the valve core 4 penetrates through the valve seat positioning sleeve 6, the valve seat positioning sleeve 6 is located above the valve seat 2 and is matched with the valve seat 2 in a clamping manner, the position of the flow channel 100 corresponds to the water inlet end 101 and the water outlet end 102, and the purpose of pressure regulation is achieved by changing the opening size between the bottom of the valve core 4 and the flow channel 100.
When the pressure regulating nut is screwed upwards, the pressure of the fluid received by the conical surface of the valve core 4 becomes small, and although the pressure can push the valve core to rise, a stagnation process possibly exists, and in order to overcome the stagnation process, in this embodiment, the valve core 4 is connected with a low-pressure rebound reset mechanism 7 which can generate thrust to the valve core 4 so as to enable the valve core 4 to accelerate in a direction away from the valve seat 2.
Specifically, the low-pressure rebound reset mechanism 7 comprises a spring seat 8 which is in clamping fit with the valve core 4, and a spring 9 which is sleeved on the valve core 4, wherein two ends of the spring 9 respectively lean against the valve seat positioning sleeve 6 and the spring seat 8.
When the pressure regulating nut rotates upwards, the bottom of the pressure regulating nut can be temporarily separated from the top of the valve core, the spring 9 is compressed to enable the spring seat 8 to be pushed to ascend, and the spring seat 9 is used for pushing the valve core 4 to ascend, so that quick response of the valve core is achieved.
The valve core 4 is clamped with a sealing ring 10, the inner wall of a spring seat 8 is clamped with the sealing ring 10, specifically, the inner wall of the spring seat 9 is provided with a clamping step matched with the sealing ring 10, and the clamping step is clamped through the sealing ring. That is, when the valve core descends, the sealing ring pushes the spring seat to descend, and when the spring seat ascends, the spring seat pushes the sealing ring to ascend so as to drive the valve core to ascend. It will be appreciated by those skilled in the art that the seal ring 10 may be selected to have a high tensile strength, thereby providing for easier and faster assembly and disassembly.
The bottom of the pressure regulating nut 5 is detachably clamped with a nut seat 11, and the nut seat 11 is pressed on the valve core 4. In the process of machining, the pressure regulating nut 5 is usually made of a material easy to machine, such as copper, and the copper is easy to deform after contacting with the valve core, so that the pressure regulating nut 5 is protected by the nut seat 11 made of a harder material.
Because the pressure regulating nut is connected with the valve body by adopting a screw connection mode, certain machining deviation possibly exists between the screw ports, and the position of the pressure regulating nut in the valve body is fixed and unchanged for ensuring that the pressure regulating is finished. The pressure regulating nut 5 of the present embodiment is provided with a pressure regulating nut locking mechanism 12 which can lock the position of the pressure regulating nut 5 inside the valve body 1.
Specifically, the pressure regulating nut locking mechanism 12 comprises a limit screw 13 screwed in the pressure regulating nut 5, and a limit ring 15 enclosed by at least two limit washers 14 and formed into a circular ring shape, steel balls 16 are densely distributed in the limit ring 15, when the limit screw 13 is screwed into the pressure regulating nut 5, the top of the limit screw 13 is contacted with the steel balls 16 and presses the steel balls 16 to tightly press the inner wall of the limit washer 14, so that the limit washer 14 moves towards the direction close to the inner wall of the valve body 1, and the outer wall of the limit washer 14 tightly presses the inner wall of the valve body 1.
The pressure regulating nut locking mechanism 12 works on the principle that a steel ball is used as power for pushing the limit washer 14, so that the limit washer is in tight contact with the valve body.
More specifically, as shown in fig. 2, the pressure regulating nut is provided with a limit groove 14a for placing the limit washer 14, the limit washer 14 is clamped in the limit groove, the pressure regulating nut is provided with a plurality of steel ball raceways 14b for placing the steel balls 16, the steel balls 16 are densely distributed in the steel ball raceways 14b and can roll along the steel ball raceways, and the steel ball raceways are communicated in the pressure regulating nut and the communicated positions are located below the limit screw 13.
The steel ball rollaway nest has a plurality of and is radial setting, preferably 4 steel ball rollaway nest.
The axial lead of the limit screw 13 coincides with the axial lead of the pressure regulating nut 5, a positioning bead 17 is further pressed above the steel ball 16 in the limit ring 15, and the positioning bead 17 just corresponds to the end part of the limit screw 13.
The water return joint 3 is internally clamped with a buffer rod 18, an overflow channel 19 is arranged in the buffer rod 18, and a plurality of overflow holes 20 communicated with the overflow channel 19 are formed in the buffer rod 18. The design of the buffer rod enables the overflowed high-pressure fluid to be ejected out through the overflow holes 20 on the buffer rod, so that the purpose of reducing the pressure is achieved, and the high-pressure fluid is prevented from directly impacting other parts and damaging the other parts. The size and the number of the overflow holes 20 on the buffer rod can keep a part of pressure in the buffer rod according to the setting, so that the damage of cavitation effect to the valve core and the sealing surface of the valve seat caused by bubbles generated when the overflowed fluid is rapidly changed from high pressure to low pressure is avoided.
The working principle of the invention is as follows:
when the pressure of the fluid end needs to be increased, the pressure regulating nut 5 is rotated downwards, the nut seat 11 pushes the valve core 4 to move downwards, the spring 9 compresses, the opening between the valve core 4 and the valve seat 2 becomes smaller, namely the contact area between the flow passage 100 and the conical surface of the valve core 4 is increased, and the pressure of the fluid end is increased. After the pressure regulation is finished, the limit screw 13 is rotated downwards to push the positioning bead 17 downwards, the positioning bead extrudes the steel ball 16, the steel ball pushes the limit washer 14 to push against the inner wall of the valve body 1, and the position of the pressure regulating nut 5 in the valve body 1 is fixed.
When the pressure of the hydraulic end needs to be regulated down, the pressure regulating nut is rotated upwards, the valve core rapidly rises under the action of spring force and hydraulic force, the opening between the valve core and the valve seat is enlarged, and the pressure of the hydraulic end is reduced.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the valve body 1, the valve seat 2, the return water joint 3, the valve element 4, the pressure regulating nut 5, the valve seat positioning sleeve 6, the low pressure rebound resetting mechanism 7, the spring seat 8, the spring 9, the seal ring 10, the nut seat 11, the pressure regulating nut locking mechanism 12, the limit screw 13, the limit washer 14, the limit groove 14a, the steel ball raceway 14b, the limit ring 15, the steel ball 16, the positioning bead 17, the buffer rod 18, the overflow channel 19, the overflow hole 20, the flow passage 100, the water inlet end 101, the water outlet end 102, etc. are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the invention and should be construed in a manner consistent with their spirit and scope.
Claims (8)
1. The 150MPa ultrahigh pressure fluid pressure regulating valve comprises a valve body (1), wherein a valve seat (2) is arranged in the valve body (1), a backwater joint (3) is connected to the bottom of the valve body (1) in a screwed manner, a valve core (4) inserted into the valve seat (2) is arranged in the valve body (1), the ultrahigh pressure fluid pressure regulating valve is characterized in that the bottom of the valve core (4) is inserted into the valve seat (2) and the bottom of the valve core (4) is a conical surface, a pressure regulating nut (5) is connected to the top of the valve body in a screwed manner, the pressure regulating nut (5) is arranged at the top of the valve core (4) in a pressed manner,
a valve seat positioning sleeve (6) is also arranged in the valve body (1), the valve core (4) passes through the valve seat positioning sleeve (6), the valve seat positioning sleeve (6) is positioned above the valve seat (2) and is in clamping fit with the valve seat (2),
the bottom of the pressure regulating nut (5) is detachably clamped with a nut seat (11), and the nut seat (11) is pressed on the valve core (4).
2. The 150MPa ultra-high pressure fluid pressure regulating valve according to claim 1, wherein the valve core (4) is connected with a low pressure rebound mechanism (7) capable of generating thrust to the valve core (4) so as to accelerate the valve core (4) in a direction away from the valve seat (2).
3. The 150MPa ultra-high pressure fluid pressure regulating valve according to claim 2, wherein the low pressure rebound reset mechanism (7) comprises a spring seat (8) in clamping fit with the valve core (4), and a spring (9) sleeved on the valve core (4), and two ends of the spring (9) respectively abut against the valve seat positioning sleeve (6) and the spring seat (8).
4. The 150MPa ultrahigh-pressure fluid pressure regulating valve according to claim 3, wherein the valve core (4) is provided with a sealing ring (10) in a clamping manner, and the inner wall of the spring seat (8) is in clamping connection with the sealing ring (10).
5. The pressure regulating valve for 150MPa ultra-high pressure fluid according to claim 1, wherein a pressure regulating nut locking mechanism (12) capable of locking the pressure regulating nut (5) in the internal position of the valve body (1) is provided in the pressure regulating nut (5).
6. The pressure regulating valve for ultrahigh pressure fluid according to claim 5, wherein the pressure regulating nut locking mechanism (12) comprises a limit screw (13) screwed inside the pressure regulating nut (5) and a limit ring (15) which is enclosed by at least two limit washers (14) and is in a circular ring shape, steel balls (16) are densely distributed in the limit ring (15), when the limit screw (13) is screwed into the pressure regulating nut (5), the top of the limit screw (13) is contacted with the steel balls (16) and presses the steel balls (16) to press against the inner wall of the limit washer (14) so as to enable the limit washer (14) to move towards a direction close to the inner wall of the valve body (1) and enable the outer wall of the limit washer (14) to press against the inner wall of the valve body (1).
7. The 150MPa ultra-high pressure fluid pressure regulating valve according to claim 6, wherein the axis of the limit screw (13) coincides with the axis of the pressure regulating nut (5), a positioning bead (17) is further pressed above the steel ball (16) in the limit ring (15), and the positioning bead (17) just corresponds to the end of the limit screw (13).
8. The 150MPa ultra-high pressure fluid pressure regulating valve according to claim 1, wherein a buffer rod (18) is clamped in the backwater joint (3), an overflow channel (19) is arranged in the buffer rod (18), and a plurality of overflow holes (20) communicated with the overflow channel (19) are arranged on the buffer rod (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810099359.7A CN108223833B (en) | 2018-01-30 | 2018-01-30 | 150MPa ultrahigh pressure fluid pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810099359.7A CN108223833B (en) | 2018-01-30 | 2018-01-30 | 150MPa ultrahigh pressure fluid pressure regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108223833A CN108223833A (en) | 2018-06-29 |
| CN108223833B true CN108223833B (en) | 2023-12-29 |
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ID=62670362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810099359.7A Active CN108223833B (en) | 2018-01-30 | 2018-01-30 | 150MPa ultrahigh pressure fluid pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223833B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377297B (en) * | 2020-11-16 | 2022-05-27 | 四川莱克斯流体控制设备有限公司 | Multifunctional universal adjustable exhaust valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202884144U (en) * | 2012-06-28 | 2013-04-17 | 阮云 | High pressure water pressure regulating valve |
| CN104141813A (en) * | 2013-05-06 | 2014-11-12 | 北京华德液压工业集团有限责任公司 | Direct-acting overflow valve |
| CN205978679U (en) * | 2016-08-30 | 2017-02-22 | 重庆红江机械有限责任公司 | Ultrahigh pressure relief valve |
| CN207906499U (en) * | 2018-01-30 | 2018-09-25 | 浙江大农实业股份有限公司 | 150MPa super high pressure fluid pressure regulator valves |
-
2018
- 2018-01-30 CN CN201810099359.7A patent/CN108223833B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202884144U (en) * | 2012-06-28 | 2013-04-17 | 阮云 | High pressure water pressure regulating valve |
| CN104141813A (en) * | 2013-05-06 | 2014-11-12 | 北京华德液压工业集团有限责任公司 | Direct-acting overflow valve |
| CN205978679U (en) * | 2016-08-30 | 2017-02-22 | 重庆红江机械有限责任公司 | Ultrahigh pressure relief valve |
| CN207906499U (en) * | 2018-01-30 | 2018-09-25 | 浙江大农实业股份有限公司 | 150MPa super high pressure fluid pressure regulator valves |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108223833A (en) | 2018-06-29 |
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