CN114738265A - Liquid inlet one-way valve of high-pressure pump - Google Patents
Liquid inlet one-way valve of high-pressure pump Download PDFInfo
- Publication number
- CN114738265A CN114738265A CN202210226593.8A CN202210226593A CN114738265A CN 114738265 A CN114738265 A CN 114738265A CN 202210226593 A CN202210226593 A CN 202210226593A CN 114738265 A CN114738265 A CN 114738265A
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- Prior art keywords
- valve body
- liquid inlet
- liquid
- check valve
- flow
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- 239000007788 liquid Substances 0.000 title claims abstract description 105
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 33
- 239000012530 fluid Substances 0.000 claims description 26
- 210000004907 gland Anatomy 0.000 claims description 13
- 230000002265 prevention Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- 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
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- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
-
- 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
- F04B51/00—Testing machines, pumps, or pumping installations
-
- 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
- F04B53/20—Filtering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention belongs to the technical field of one-way valves, and particularly relates to a liquid inlet one-way valve of a high-pressure pump, which comprises a valve body of the one-way valve, a liquid inlet end, a filtering mechanism, a liquid outlet end and a control and alarm device, wherein the filtering mechanism is sealed and detachably arranged in the liquid inlet end and is used for filtering oil liquid entering the liquid inlet end, and the control and alarm device is used for automatically alarming when a flow detection device detects that the flow of the oil liquid is lower than a limit value. According to the invention, the filtering mechanism is additionally arranged on the existing one-way valve structure, so that oil in the liquid inlet end can be filtered, the detachable connection mode is adopted, the assembly is easy, meanwhile, the filter screen can be cleaned or replaced under the condition that the whole valve device is not required to be detached, the flow detection device is arranged on the liquid outlet end, the flow of the oil can be monitored in real time, the problem of blockage in the valve can be found in time, a flow monitoring system is formed by matching with a control and alarm device, and the automatic alarm is carried out when the flow of the oil is detected to be lower than a limit value.
Description
Technical Field
The invention relates to the technical field of one-way valves, in particular to a liquid inlet one-way valve of a high-pressure pump.
Background
The check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. The one-way valve has a straight-through type and a right-angle type. The straight-through one-way valve is installed on the pipeline by threaded connection. The right-angle check valve has three forms of threaded connection, plate connection and flange connection.
Check valves typically include a valve body, a valve spool, and a spring that provides a fixed cracking pressure. Although the liquid inlet one-way valve of the existing high-pressure pump can play a role in backflow prevention, the liquid inlet one-way valve is single in function, and is lack of a liquid filtering mechanism, contaminated liquid in an inlet valve body cannot be filtered, so that a valve core is prone to being blocked, normal operation of a system is affected, even follow-up equipment is prone to being broken down, the flow monitoring function is correspondingly lacked, and blocking can not be found in time.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a liquid inlet one-way valve for a high-pressure pump, which solves the problems that the existing liquid inlet one-way valve for the high-pressure pump in the background art is lack of an oil liquid filtering mechanism, cannot filter polluted oil liquid entering a valve body, is easy to cause valve core blockage, influences the normal operation of a system, even causes the fault of subsequent equipment, is correspondingly lack of a flow monitoring function, and cannot find the blockage in the valve body in time.
(II) technical scheme
The invention specifically adopts the following technical scheme for realizing the purpose:
a high pressure pump feed check valve comprising:
the valve comprises a one-way valve body, a valve core and a spring, wherein a fluid channel is arranged in the one-way valve body, the valve core is arranged on the corresponding fluid channel in the one-way valve body through the spring, a liquid outlet valve port is arranged on the valve core, and the spring is used for providing fixed opening pressure of the liquid outlet valve port;
the liquid inlet end is connected to the front end of the valve body of the one-way valve, a mounting groove is formed in the liquid inlet end, an embedded groove is formed in the liquid inlet end and corresponds to the bottom of the mounting groove, and an inner channel of the liquid inlet end penetrates through the embedded groove and is communicated with a liquid inlet of the fluid channel;
the filtering mechanism is sealed and detachably arranged in the liquid inlet end and is used for filtering oil liquid entering the liquid inlet end;
the liquid outlet end is connected to the rear end of the check valve body, a flow detection device for monitoring the flow of oil is embedded in the liquid outlet end, and a liquid inlet of the liquid outlet end is communicated with a liquid outlet of the fluid channel;
and the control and alarm device is used for automatically giving an alarm when the flow detection device detects that the oil flow is lower than the limit value.
Furthermore, the check valve body comprises an inlet valve body and an outlet valve body, the inlet valve body is in threaded connection with the outlet valve body, a first sealing ring is arranged in the check valve body and is installed on the inner wall of the connecting end, corresponding to the inlet valve body and the outlet valve body, of the fluid channel, and when the inlet valve body, the outlet valve body and the valve core are in contact with the first sealing ring at the same time, the first sealing ring provides backflow prevention sealing.
Further, outer connecting threads used for installing the clamping sleeve and the screw cap are arranged on the liquid inlet end and the liquid outlet end, and the liquid inlet of the liquid inlet end and the liquid outlet of the liquid outlet end are both arranged in an open shape matched with the clamping sleeve.
Further, filtering mechanism includes the mount pad with mounting groove looks adaptation, the mount pad passes through bolt fixed mounting in the mounting groove, the connection piece with embedding groove looks adaptation is installed to the bottom of mount pad, the inside of connection piece is equipped with the mounting hole, install the filter screen in the mounting hole, the filter screen corresponds to be installed on the center line of feed liquor end inner channel.
Specifically, sealing connection between the junction of mount pad and connection piece passes through sealing strip and the notch of embedded groove, the peripheral position that the left and right sides of connection piece corresponds the mounting hole all is equipped with the second sealing washer, the connection piece passes through second sealing washer and embedded groove cell wall sealing connection.
Further, be equipped with the gland that is used for sticising filter mechanism on the mounting groove, the feed liquor is served and is equipped with the knot seat corresponding to the left and right sides of mounting groove, lateral margin department is equipped with and detains a lock joint complex knot tongue about the gland.
Further, control and alarm device include PLC controller and alarm, the PLC controller respectively with alarm and flow detection device electric connection, when flow detection device detected that fluid flow is less than the limit value, the PLC controller control alarm reports to the police.
(III) advantageous effects
Compared with the prior art, the invention provides a liquid inlet one-way valve of a high-pressure pump, which has the following beneficial effects:
1. according to the invention, the filtering mechanism is additionally arranged on the existing check valve structure, so that oil liquid in the liquid inlet end can be filtered, the detachable connection mode is adopted, the assembly is easy, meanwhile, the filter screen can be cleaned or replaced without detaching the whole valve device, the maintenance efficiency is effectively improved, and the whole structure is compact.
2. According to the invention, the flow detection device is arranged on the liquid outlet end, so that the flow of the oil can be monitored in real time, the problem of blockage in the valve can be found in time, a flow monitoring system is formed by matching with the control and alarm device, and automatic alarm is carried out when the flow of the oil is detected to be lower than a limit value.
3. According to the invention, the gland is arranged on the mounting groove at the liquid inlet end, and the mounting seat of the filtering mechanism is compressed by the gland, so that the problem that the bolts fall off in the long-time use process due to the fact that the pipeline vibrates due to the fact that the pressure of the high-pressure pump is increased and fluctuates instantly is effectively prevented, and the whole valve structure is more stable and reliable.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection between the liquid inlet end and the filtering mechanism in a cross-sectional state according to the present invention;
FIG. 3 is a cross-sectional view of the inlet end of the present invention;
FIG. 4 is a schematic view of the structure of the filter mechanism of the present invention;
fig. 5 is a schematic structural view of the gland of the present invention.
In the figure: 1. a one-way valve body; 101. an inlet valve body; 102. an outlet valve body; 2. a liquid inlet end; 201. mounting grooves; 202. embedding the groove; 203. a buckle seat; 3. a filtering mechanism; 301. a mounting seat; 302. a bolt; 303. connecting sheets; 304. a filter screen; 4. a liquid outlet end; 5. a fluid channel; 6. a spring; 7. a valve core; 8. a flow detection device; 9. a first seal ring; 10. a sealing strip; 11. a second seal ring; 12. a gland; 1201. a buckle tongue.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in fig. 1 to 5, a liquid inlet check valve for a high pressure pump according to an embodiment of the present invention includes a check valve body 1, a liquid inlet end 2, a filtering mechanism 3, a liquid outlet end 4, and a control and alarm device, wherein:
the check valve comprises a check valve body 1, a main body of the check valve body is of a check valve structure in the prior art, a fluid channel 5 is arranged in the check valve body 1, specifically, a valve cavity connected in series between front and rear channels of the fluid channel 5 is arranged in the check valve body 1, a valve core 7 is installed in the valve cavity through a spring 6, the valve core 7 is of a structure that a plurality of liquid inlet holes are circumferentially arranged on the outer wall, the inner wall is hollow, a liquid outlet valve port is arranged at the tail end, the structural design of the valve core 7 can reduce flow resistance and ensure flow, and the spring 6 provides fixed liquid outlet valve port opening pressure; when the anti-backflow valve works, the pipeline system enables input pressure to be increased under the action of the high-pressure pump, the valve core 7 is forced to be away from a front end channel of the fluid channel 5 under the action of fluid, the fluid is discharged through a gap between the valve core 7 and the one-way valve body 1, a liquid inlet hole of the valve core 7 and a liquid outlet valve port in sequence, and when the fluid reversely flows, the valve core 7 blocks the front end channel of the fluid channel 5 under the action of the spring 6 to play a role in backflow prevention.
The liquid inlet end 2 is connected to the front end of the one-way valve body 1, a mounting groove 201 is formed in the liquid inlet end 2, an embedded groove 202 is formed in the liquid inlet end 2 corresponding to the bottom of the mounting groove 201, and an inner channel of the liquid inlet end 2 penetrates through the embedded groove 202 to be communicated with a liquid inlet of the fluid channel 5; the positions of the mounting groove 201 and the embedded groove 202 relative to the liquid inlet end 2 are shown in fig. 3;
The liquid outlet end 4 is connected to the rear end of the check valve body 1, a flow detection device 8 used for monitoring the flow of the oil liquid is embedded in the liquid outlet end 4, a liquid inlet of the liquid outlet end 4 is communicated with a liquid outlet of the fluid channel 5, the flow of the oil liquid can be monitored in real time through the flow detection device 8, and the problem of internal blockage of the check valve body 1 can be found in time.
In the above embodiment, the flow rate detection device 8 may be one of LXZ series magnetoelectric intelligent flow meters in the related art.
And the control and alarm device is used for automatically giving an alarm when the flow detection device 8 detects that the oil flow is lower than the limit value.
As shown in fig. 1, in some embodiments, the check valve body 1 includes an inlet valve body 101 and an outlet valve body 102, the inlet valve body 101 is in threaded connection with the outlet valve body 102, and the inlet valve body 101 is in threaded connection with the outlet valve body 102 in a manner that the damaged valve element 7 and the damaged spring 6 can be replaced conveniently; the check valve comprises a check valve body 1, a first sealing ring 9 is arranged in the check valve body 1, the first sealing ring 9 is arranged on the inner wall of a connecting end, corresponding to an inlet valve body 101 and an outlet valve body 102, of a fluid channel 5, when the inlet valve body 101, the outlet valve body 102 and a valve core 7 are simultaneously contacted with the first sealing ring 9, the first sealing ring 9 provides backflow prevention sealing, under the normal working state of the check valve, the valve core 7 can apply certain force to a spring 6 under the pressure of oil, the compression spring 6 drives the valve core 7 to move backwards, at the moment, the oil enters the valve core 7 through the space between the valve core 7 and the inner wall of the outlet valve body 102 and is discharged through a liquid outlet valve port.
As shown in fig. 1, in some embodiments, the liquid inlet end 2 and the liquid outlet end 4 are both provided with external connection threads for installing the chuck sleeve and the nut, the liquid inlet of the liquid inlet end 2 and the liquid outlet of the liquid outlet end 4 are both arranged in an open shape matched with the chuck sleeve, when assembling, the chuck sleeve is arranged in the nut corresponding to the liquid inlet of the liquid inlet end 2, then the chuck sleeve is inserted into the open by the knob nut, thus completing the installation of the nut and the chuck sleeve on the liquid inlet end 2, and the installation mode of the chuck sleeve and the nut on the liquid outlet end 4 is the same as that of the liquid inlet end 2; during connecting tube, insert the connecting tube tip in the sleeve, utilize nut locking, conflict sleeve, form sealedly, need not the welding, simple to operate.
As shown in fig. 4, in some embodiments, the filter mechanism 3 includes a mounting seat 301 adapted to the mounting groove 201, the mounting seat 301 is fixedly mounted in the mounting groove 201 by a bolt 302, a connecting piece 303 adapted to the embedded groove 202 is mounted at the bottom of the mounting seat 301, the end surface size of the mounting seat 301 should be larger than the end surface size of the connecting piece 303, the mounting seat 301 is aligned with the embedded groove 202 when mounted, and the mounting seat 301 is overlapped in the mounting groove 201; the inside of connection piece 303 is equipped with the mounting hole, installs filter screen 304 in the mounting hole, and filter screen 304 corresponds to be installed on the central line of feed liquor end 2 inner channel, and the relative feed liquor end 2 inner channel of size of filter screen 304 should not be too little, avoids leading to protrusion to connection piece 303 inner edge in the passageway to play the choked flow effect to fluid.
As shown in fig. 2, in some embodiments, in order to improve the sealing performance of the filter mechanism 3, the connection portion of the mounting seat 301 and the connecting piece 303 is connected with the notch of the embedded groove 202 in a sealing manner through the sealing strip 10, a second sealing ring 11 is arranged at the left side and the right side of the connecting piece 303 corresponding to the peripheral position of the mounting hole, the connecting piece 303 is connected with the groove wall of the embedded groove 202 in a sealing manner through the second sealing ring 11, double sealing is achieved to avoid oil leakage, and the water tightness of the connecting structure is ensured.
As shown in fig. 2 and 5, in some embodiments, in order to prevent the pipe from vibrating due to the large instantaneous fluctuation of the pressure raised by the high-pressure pump, the bolts 302 may be detached during a long period of use. The mounting groove 201 is provided with a gland 12 for pressing the filtering mechanism 3, the mounting seat 301, the connecting sheet 303 and the liquid inlet end 2 are combined more tightly due to the arrangement of the gland 12, the bolt 302 is effectively prevented from falling off, and the filtering mechanism 3 can work stably and reliably for a long time; the left and right sides that corresponds mounting groove 201 on feed liquor end 2 is equipped with detains seat 203, and the lateral margin department about gland 12 is equipped with and detains seat 203 lock joint complex knot tongue 1201, uses through detaining seat 203 and the cooperation of detaining tongue 1201, can withhold gland 12 on mounting groove 201 fast, and gland 12 can play waterproof, prevent that impurity from getting into the effect in mounting groove 201.
In some embodiments, the control and alarm device comprises a PLC controller and an alarm, the PLC controller is electrically connected to the alarm and the flow detection device 8, respectively, and when the flow detection device 8 detects that the oil flow is lower than a limit value, the PLC controller controls the alarm to alarm.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The liquid inlet one-way valve of the high-pressure pump is characterized in that: the method comprises the following steps:
the check valve comprises a check valve body (1), a fluid channel (5) is arranged in the check valve body (1), a valve core (7) is arranged on the corresponding fluid channel (5) in the check valve body (1) through a spring (6), a liquid outlet valve port is arranged on the valve core (7), and the spring (6) is used for providing fixed liquid outlet valve port opening pressure;
the liquid inlet end (2) is connected to the front end of the one-way valve body (1), a mounting groove (201) is formed in the liquid inlet end (2), an embedded groove (202) is formed in the liquid inlet end (2) and corresponds to the bottom of the mounting groove (201), and an inner channel of the liquid inlet end (2) penetrates through the embedded groove (202) and is communicated with a liquid inlet of the fluid channel (5);
the filtering mechanism (3) is hermetically and detachably arranged in the liquid inlet end (2) and is used for filtering the oil liquid entering the liquid inlet end (2);
the liquid outlet end (4) is connected to the rear end of the one-way valve body (1), a flow detection device (8) for monitoring the flow of oil is embedded in the liquid outlet end (4), and a liquid inlet of the liquid outlet end (4) is communicated with a liquid outlet of the fluid channel (5);
and the control and alarm device is used for automatically giving an alarm when the flow detection device (8) detects that the oil flow is lower than the limit value.
2. The high-pressure pump feed check valve as claimed in claim 1, wherein: the check valve body (1) comprises an inlet valve body (101) and an outlet valve body (102), the inlet valve body (101) is in threaded connection with the outlet valve body (102), a first sealing ring (9) is arranged in the check valve body (1), the first sealing ring (9) is arranged on the inner wall of the connecting end, corresponding to the inlet valve body (101) and the outlet valve body (102), of the fluid channel (5), and when the inlet valve body (101), the outlet valve body (102) and the valve core (7) are in contact with the first sealing ring (9) simultaneously, the first sealing ring (9) provides backflow prevention sealing.
3. The high-pressure pump feed check valve as claimed in claim 1, wherein: outer connecting threads used for installing the clamping sleeve and the screw cap are arranged on the liquid inlet end (2) and the liquid outlet end (4), and the liquid inlet of the liquid inlet end (2) and the liquid outlet of the liquid outlet end (4) are both arranged in an open shape matched with the clamping sleeve.
4. The high-pressure pump feed check valve as claimed in claim 1, wherein: filtering mechanism (3) include mount pad (301) with mounting groove (201) looks adaptation, mount pad (301) are through bolt (302) fixed mounting in mounting groove (201), connection piece (303) with embedded groove (202) looks adaptation are installed to the bottom of mount pad (301), the inside of connection piece (303) is equipped with the mounting hole, install filter screen (304) in the mounting hole, filter screen (304) correspond to be installed on the central line of passageway in feed liquor end (2).
5. The high-pressure pump feed check valve as claimed in claim 4, wherein: sealing connection between the junction of mount pad (301) and connection piece (303) passes through sealing strip (10) and the notch of embedded groove (202), the peripheral position that the left and right sides of connection piece (303) corresponds the mounting hole all is equipped with second sealing washer (11), connection piece (303) are through second sealing washer (11) and embedded groove (202) cell wall sealing connection.
6. The high-pressure pump feed check valve of claim 1, characterized in that: be equipped with gland (12) that are used for sticising filter mechanism (3) on mounting groove (201), the left and right sides that corresponds mounting groove (201) on feed liquor end (2) is equipped with detains seat (203), lateral margin department is equipped with and detains seat (203) lock joint complex knot tongue (1201) about gland (12).
7. The high-pressure pump feed check valve as claimed in claim 1, wherein: control and alarm device include PLC controller and alarm, the PLC controller respectively with alarm and flow detection device (8) electric connection, when flow detection device (8) detected that fluid flow is less than the limit value, the PLC controller control alarm reports to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226593.8A CN114738265A (en) | 2022-03-09 | 2022-03-09 | Liquid inlet one-way valve of high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226593.8A CN114738265A (en) | 2022-03-09 | 2022-03-09 | Liquid inlet one-way valve of high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114738265A true CN114738265A (en) | 2022-07-12 |
Family
ID=82275896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210226593.8A Pending CN114738265A (en) | 2022-03-09 | 2022-03-09 | Liquid inlet one-way valve of high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114738265A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117846953A (en) * | 2024-03-07 | 2024-04-09 | 天津华益机械设备维修有限公司 | Water power testing device of reciprocating plunger pump for oil field |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040060603A1 (en) * | 2000-06-09 | 2004-04-01 | Song Kil Bong | Automatic valve device |
| CN204140975U (en) * | 2014-10-08 | 2015-02-04 | 浙江天信仪表科技有限公司 | The non-return filtering mechanism of flow automatic control device |
| CN104455581A (en) * | 2014-11-28 | 2015-03-25 | 四川航空工业川西机器有限责任公司 | Ultrahigh pressure check valve |
| KR20170067978A (en) * | 2015-12-09 | 2017-06-19 | 김성태 | Pressure reducing valve device for high pressure fluid |
| CN109469749A (en) * | 2018-12-26 | 2019-03-15 | 无锡梯梯科技有限公司 | Check valve apparatus |
| CN215596527U (en) * | 2021-08-24 | 2022-01-21 | 宁波展鹰智能卫浴科技有限公司 | Electromagnetic valve with flow detection function |
-
2022
- 2022-03-09 CN CN202210226593.8A patent/CN114738265A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040060603A1 (en) * | 2000-06-09 | 2004-04-01 | Song Kil Bong | Automatic valve device |
| CN204140975U (en) * | 2014-10-08 | 2015-02-04 | 浙江天信仪表科技有限公司 | The non-return filtering mechanism of flow automatic control device |
| CN104455581A (en) * | 2014-11-28 | 2015-03-25 | 四川航空工业川西机器有限责任公司 | Ultrahigh pressure check valve |
| KR20170067978A (en) * | 2015-12-09 | 2017-06-19 | 김성태 | Pressure reducing valve device for high pressure fluid |
| CN109469749A (en) * | 2018-12-26 | 2019-03-15 | 无锡梯梯科技有限公司 | Check valve apparatus |
| CN215596527U (en) * | 2021-08-24 | 2022-01-21 | 宁波展鹰智能卫浴科技有限公司 | Electromagnetic valve with flow detection function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117846953A (en) * | 2024-03-07 | 2024-04-09 | 天津华益机械设备维修有限公司 | Water power testing device of reciprocating plunger pump for oil field |
| CN117846953B (en) * | 2024-03-07 | 2024-05-14 | 天津华益机械设备维修有限公司 | Water power testing device of reciprocating plunger pump for oil field |
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