CN111608903A - Liquid suction and discharge valve and working method thereof - Google Patents
Liquid suction and discharge valve and working method thereof Download PDFInfo
- Publication number
- CN111608903A CN111608903A CN202010588349.7A CN202010588349A CN111608903A CN 111608903 A CN111608903 A CN 111608903A CN 202010588349 A CN202010588349 A CN 202010588349A CN 111608903 A CN111608903 A CN 111608903A
- Authority
- CN
- China
- Prior art keywords
- liquid
- liquid suction
- valve
- suction valve
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 226
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000007599 discharging Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims 2
- 239000003245 coal Substances 0.000 abstract description 3
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F04B53/109—Valves; Arrangement of valves inlet and outlet valve forming 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
- F04B53/1087—Valve seats
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- 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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to a liquid suction and discharge valve and a working method thereof, belonging to the technical field of coal mines. In the invention, the liquid suction and discharge valves are arranged in a linear manner, so that the structure is more compact; the guide structure is simple, and the friction force is smaller; the valve seat can be used on two sides, and the service life is longer; the valve seat is in clearance fit with the mounting hole, so that the replacement is convenient; the medium flow rate design reduces cavitation erosion; the liquid suction valve and the liquid discharge valve can be used interchangeably, and fewer spare parts are realized.
Description
Technical Field
The invention belongs to the technical field of coal mines, and particularly relates to a liquid suction and discharge valve and a working method thereof.
Background
The existing plunger pump adopts independent structural design forms of a liquid suction valve and a liquid discharge valve and related connecting pieces, and has the defects of difficult installation and maintenance, various types and styles of parts, non-interchangeability, more spare part stocks and the like.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to design a suction and discharge valve with simple structure, long service life and convenient maintenance.
(II) technical scheme
In order to solve the above technical problems, the present invention provides a liquid suction and discharge valve, comprising: the liquid discharge valve comprises a liquid discharge valve guide seat 1, a liquid discharge valve spring 2, a liquid discharge valve core 3, a liquid discharge valve seat 4, a plunger 5, a liquid suction valve guide seat 6, a liquid suction valve spring 7, a liquid suction valve core 8, a sleeve 9, a liquid suction valve seat 10 and a pump head shell 11;
the liquid discharge valve guide seat 1, the liquid discharge valve spring 2, the liquid discharge valve core 3, the liquid discharge valve seat 4, the plunger 5, the liquid suction valve guide seat 6, the liquid suction valve spring 7, the liquid suction valve core 8, the sleeve 9 and the liquid suction valve seat 10 are all positioned in the cavity of the pump head shell 11 and are arranged from an opening at the upper end of the pump head shell 11, the liquid suction valve seat 10 is of a circular structure, the outer edge of the liquid suction valve seat is in contact with the cavity of the pump head shell 11, and the liquid suction valve seat is arranged from the upper end of; the liquid suction valve core 8 is of a circular structure, one end of the liquid suction valve core is provided with a bulge, the liquid suction valve core is arranged from the upper end of the cavity to be in contact with the liquid suction valve seat 10, and the liquid suction valve spring 7 is sleeved on the bulge of the liquid suction valve core 8; the liquid suction valve guide seat 6 is of a circular structure, a guide hole is formed in the middle of the liquid suction valve guide seat, and the bulge of the liquid suction valve core 8 and the liquid suction valve spring 7 are inserted into the guide hole of the liquid suction valve guide seat 6 together; the sleeve 9 is in contact with the liquid suction valve guide seat 6 and is annular, one end of the side surface is provided with a hole, the central axis of the side surface hole is superposed with the central axis of the plunger 5, and the liquid discharge valve guide seat 1, the liquid discharge valve spring 2, the liquid discharge valve core 3 and the liquid discharge valve seat 4 are sequentially arranged.
Preferably, a metal flange is also included to cover the upper end of the pump head housing 11.
Preferably, the suction valve guide seat 6 and the discharge valve guide seat 1 are identical and interchangeable.
Preferably, the suction valve spring 7 and the discharge valve spring 2 are identical and interchangeable.
Preferably, the suction and discharge spools 8 and 3 are identical and interchangeable.
Preferably, the suction seat 10 and the discharge seat 4 are identical and interchangeable.
Preferably, the drain valve spring 2 is used for automatically resetting the drain valve core 3; the drainage valve guide seat 1 is used for realizing the moving guide of the drainage valve core 3; the liquid suction valve spring 7 is used for automatically resetting the liquid suction valve core 8; the liquid suction valve guide seat 6 is used for realizing the moving guide of the liquid suction valve core 8.
Preferably, the drain spool 3 is used to achieve the output of the medium; the plunger 5 is used for sucking and discharging liquid medium through reciprocating motion; the suction valve core 8 is used for realizing the suction of the medium.
Preferably, the drain valve seat 4 is used to support the drain valve spool 3; the suction valve seat 10 is used for supporting the suction valve core 8.
The invention also provides a working method of the liquid suction and discharge valve, and the liquid suction process comprises the following steps: in the retraction movement process of the plunger 5, negative pressure is formed in the inner space of the pump head shell 11, the liquid discharge valve core 3 and the liquid discharge valve seat 4 are tightly pressed, meanwhile, the negative pressure drives the liquid suction valve core 8 to compress the liquid suction valve spring 7 to move along the liquid suction valve guide seat 6, so that a gap is formed between the liquid suction valve core 8 and the liquid suction valve seat 10, and external liquid medium is sucked into the cavity through the liquid suction port; the liquid drainage process is as follows: in the process of extending the plunger 5, the space in the sleeve 9 is enabled to form high pressure, the liquid absorption valve core 8 and the liquid absorption valve seat 10 are tightly pressed, meanwhile, the liquid drainage valve core 3 is pushed by the high pressure to compress the liquid drainage valve spring 2 to move along the liquid drainage valve guide seat 1, so that a gap is formed between the liquid drainage valve core 3 and the liquid drainage valve seat 4, and liquid medium in the cavity is discharged through the liquid drainage port.
(III) advantageous effects
In the invention, the liquid suction and discharge valves are arranged in a linear manner, so that the structure is more compact; the guide structure is simple, and the friction force is smaller; the valve seat can be used on two sides, and the service life is longer; the valve seat is in clearance fit with the mounting hole, so that the replacement is convenient; the medium flow rate design reduces cavitation erosion; the liquid suction valve and the liquid discharge valve can be used interchangeably, and fewer spare parts are realized.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Wherein, 1: drain valve guide seat, 2: a drain valve spring; 3: a liquid discharge valve core; 4: a drain valve seat; 5: plunger, 6: a liquid suction valve guide seat; 7: a liquid suction valve spring; 8: a liquid suction valve core; 9: a sleeve; 10: a liquid suction valve seat; 11: a pump head housing.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The invention provides a liquid suction and discharge valve, which is used for realizing the function of sucking and discharging water or emulsion and other media by a plunger pump for a pump station for conveying a power source to a coal mine hydraulic support, and comprises the following components: the liquid discharge valve comprises a liquid discharge valve guide seat 1, a liquid discharge valve spring 2, a liquid discharge valve core 3, a liquid discharge valve seat 4, a plunger 5, a liquid suction valve guide seat 6, a liquid suction valve spring 7, a liquid suction valve core 8, a sleeve 9, a liquid suction valve seat 10 and a pump head shell 11;
the liquid discharge valve guide seat 1 is used for realizing the moving guide of the liquid discharge valve core 3; the liquid discharge valve spring 2 is used for automatically resetting the liquid discharge valve core 3; the liquid discharge valve core 3 is used for realizing the output of the medium; liquid discharge valve seat 4: for supporting the drain spool 3; the plunger 5 is used for realizing the suction and discharge of the liquid medium through the reciprocating motion of the plunger 5; the liquid suction valve guide seat 6 is used for realizing the moving guide of the liquid suction valve core 8; the liquid suction valve spring 7 is used for automatically resetting the liquid suction valve core 8; the liquid suction valve core 8 is used for sucking a medium; the sleeve 9 is used for connecting and supporting the liquid suction and discharge valves; the liquid suction valve seat 10 is used for supporting the liquid suction valve core 8; the pump head shell 11 is used for mounting and bearing all parts such as a liquid suction and discharge valve and the like;
the liquid discharge valve guide seat 1, the liquid discharge valve spring 2, the liquid discharge valve core 3, the liquid discharge valve seat 4, the plunger 5, the liquid suction valve guide seat 6, the liquid suction valve spring 7, the liquid suction valve core 8, the sleeve 9 and the liquid suction valve seat 10 are all positioned in the cavity of the pump head shell 11 and are arranged from an opening at the upper end of the pump head shell 11, the liquid suction valve seat 10 is of a circular structure, the outer edge of the liquid suction valve seat is in contact with the cavity of the pump head shell 11, and the liquid suction valve seat is arranged from the upper end of; the liquid suction valve core 8 is of a circular structure, one end of the liquid suction valve core is provided with a bulge, the liquid suction valve core is arranged from the upper end of the cavity to be in contact with the liquid suction valve seat 10, and the liquid suction valve spring 7 is sleeved on the bulge of the liquid suction valve core 8; the liquid suction valve guide seat 6 is of an annular structure, a guide hole is formed in the middle of the liquid suction valve guide seat, the bulge of the liquid suction valve core 8 and the liquid suction valve spring 7 are inserted into the guide hole of the liquid suction valve guide seat 6 together, the sleeve 9 is in contact with the liquid suction valve guide seat 6, is annular and is made of a metal material, one end of the side surface of the sleeve is provided with a hole, the central axis of the side surface hole is superposed with the central axis of the plunger 5, and then the liquid discharge valve guide seat 1, the liquid discharge valve spring 2, the liquid discharge valve core 3 and the; finally, the upper end of the pump head housing 11 is capped by a metal flange.
The liquid suction valve guide seat 6 and the liquid discharge valve guide seat 1 are completely the same and can realize interchange; the liquid suction valve spring 7 and the liquid discharge valve spring 2 are completely the same and can realize interchange; the liquid suction valve core 8 and the liquid discharge valve core 3 are completely the same and can realize interchange; the liquid suction valve seat 10 and the liquid discharge valve seat 4 are completely the same and can be interchanged;
the working principle of the invention is as follows:
liquid suction process: in the retraction motion process of the plunger 5, the internal space of the pump head shell 11 can form negative pressure, so that the liquid discharging valve core 3 and the liquid discharging valve seat 4 are tightly pressed, meanwhile, the negative pressure can drive the liquid suction valve core 8 to compress the liquid suction valve spring 7 to move along the liquid suction valve guide seat 6, so that a gap is formed between the liquid suction valve core 8 and the liquid suction valve seat 10, and external liquid media are sucked into the cavity through the liquid suction port.
Liquid drainage process: in the process of extending the plunger 5, the space in the sleeve 9 can be high-pressure to enable the liquid absorption valve core 8 and the liquid absorption valve seat 10 to be tightly pressed, meanwhile, the high pressure can push the liquid discharge valve core 3 to compress the liquid discharge valve spring 2 to move along the liquid discharge valve guide seat 1, so that a gap is formed between the liquid discharge valve core 3 and the liquid discharge valve seat 4, and liquid medium in the cavity is discharged through the liquid discharge port.
It can be seen that in the invention, the liquid suction and discharge valves are arranged in a linear way, so that the structure is more compact; the guide structure is simple, and the friction force is smaller; the valve seat can be used on two sides, and the service life is longer; the valve seat is in clearance fit with the mounting hole, so that the replacement is convenient; the medium flow rate design reduces cavitation erosion; the liquid suction valve and the liquid discharge valve can be used interchangeably, and fewer spare parts are realized.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A liquid suction and discharge valve, comprising: the device comprises a liquid discharge valve guide seat (1), a liquid discharge valve spring (2), a liquid discharge valve core (3), a liquid discharge valve seat (4), a plunger (5), a liquid suction valve guide seat (6), a liquid suction valve spring (7), a liquid suction valve core (8), a sleeve (9), a liquid suction valve seat (10) and a pump head shell (11);
the liquid discharge valve guide seat (1), the liquid discharge valve spring (2), the liquid discharge valve core (3), the liquid discharge valve seat (4), the plunger (5), the liquid suction valve guide seat (6), the liquid suction valve spring (7), the liquid suction valve core (8), the sleeve (9) and the liquid suction valve seat (10) are all located in a cavity of the pump head shell (11) and are arranged from an opening at the upper end of the pump head shell (11), the liquid suction valve seat (10) is of a circular structure, the outer edge of the liquid suction valve seat is in contact with the cavity of the pump head shell (11), and the liquid suction valve seat is arranged from the upper end to the; the liquid suction valve core (8) is of a circular structure, one end of the liquid suction valve core is provided with a bulge, the liquid suction valve core is arranged from the upper end of the cavity to be in contact with the liquid suction valve seat (10), and the liquid suction valve spring (7) is sleeved on the bulge of the liquid suction valve core (8); the liquid suction valve guide seat (6) is of a circular structure, a guide hole is formed in the middle of the liquid suction valve guide seat, and the bulge of the liquid suction valve core (8) and the liquid suction valve spring (7) are inserted into the guide hole of the liquid suction valve guide seat (6) together; the sleeve (9) is in contact with the liquid suction valve guide seat (6) and is circular, one end of the side surface is provided with a hole, the central axis of the side surface hole is superposed with the central axis of the plunger (5), and the liquid discharge valve guide seat (1), the liquid discharge valve spring (2), the liquid discharge valve core (3) and the liquid discharge valve seat (4) are sequentially arranged.
2. The valve according to claim 1, further comprising a metal flange covering the upper end of the pump head housing (11).
3. The valve according to claim 1, characterized in that said valve guide (6) and said valve guide (1) are identical and interchangeable.
4. The valve according to claim 1, characterized in that the valve spring (7) and the valve spring (2) are identical and interchangeable.
5. The valve according to claim 1, characterized in that the suction spool (8) and the discharge spool (3) are identical and interchangeable.
6. The valve according to claim 1, characterized in that said suction seat (10) and said discharge seat (4) are identical and interchangeable.
7. The suction drain valve according to claim 1, characterized in that the drain valve spring (2) is used to automatically reset the drain spool (3); the drainage valve guide seat (1) is used for realizing the moving guide of the drainage valve core (3); the liquid suction valve spring (7) is used for automatically resetting the liquid suction valve core (8); the liquid suction valve guide seat (6) is used for realizing the moving guide of the liquid suction valve core (8).
8. The valve according to claim 7, characterized in that the drainage spool (3) is used to achieve the output of the medium; the plunger (5) is used for sucking and discharging liquid medium through reciprocating motion; the liquid suction valve core (8) is used for realizing the suction of the medium.
9. The valve according to claim 8, characterized in that the drainage valve seat (4) is intended to support a drainage valve spool (3); the liquid suction valve seat (10) is used for supporting the liquid suction valve core (8).
10. A method of operating a tapping valve according to any of claims 1 to 9, wherein the tapping process comprises: in the retraction movement process of the plunger (5), the internal space of the pump head shell (11) forms negative pressure, the liquid discharging valve core (3) and the liquid discharging valve seat (4) are compressed, meanwhile, the negative pressure drives the liquid suction valve core (8) to compress the liquid suction valve spring (7) to move along the liquid suction valve guide seat (6), a gap is formed between the liquid suction valve core (8) and the liquid suction valve seat (10), and external liquid medium is sucked into the cavity through the liquid suction port; the liquid drainage process is as follows: in the process that the plunger (5) extends out, high pressure is formed in the space in the sleeve (9), the liquid suction valve core (8) and the liquid suction valve seat (10) are pressed tightly, meanwhile, the liquid discharge valve core (3) is pushed by the high pressure to compress the liquid discharge valve spring (2) to move along the liquid discharge valve guide seat (1), a gap is formed between the liquid discharge valve core (3) and the liquid discharge valve seat (4), and liquid media in the cavity are discharged through a liquid discharge port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010588349.7A CN111608903A (en) | 2020-06-24 | 2020-06-24 | Liquid suction and discharge valve and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010588349.7A CN111608903A (en) | 2020-06-24 | 2020-06-24 | Liquid suction and discharge valve and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111608903A true CN111608903A (en) | 2020-09-01 |
Family
ID=72199076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010588349.7A Pending CN111608903A (en) | 2020-06-24 | 2020-06-24 | Liquid suction and discharge valve and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111608903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586426A (en) * | 2021-09-13 | 2021-11-02 | 无锡威顺煤矿机械有限公司 | Emulsion pump and hydraulic end integrated linear vertical structure thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202545230U (en) * | 2012-04-26 | 2012-11-21 | 潍坊胜利石化机械有限公司 | Polymer injection pump |
| CN203796548U (en) * | 2014-01-16 | 2014-08-27 | 浙江众博矿业机械有限公司 | Pump head assembly |
| CN204476737U (en) * | 2014-12-30 | 2015-07-15 | 宁波锦球机械有限公司 | A kind of emulsion pump valve body structure |
| CN205779642U (en) * | 2016-06-24 | 2016-12-07 | 无锡市东亚泵业有限公司 | A kind of reciprocating plunger pump |
| CN107701417A (en) * | 2017-05-05 | 2018-02-16 | 宁波钱湖石油设备有限公司 | A kind of reciprocating pump hydraulic-end structure |
| CN208474056U (en) * | 2018-05-28 | 2019-02-05 | 濮阳市大通机泵有限公司 | A kind of split type fluid end of water injecting pump |
| CN110242530A (en) * | 2019-07-31 | 2019-09-17 | 中铁工程服务有限公司 | Hydraulic double-liquid grouting pump and suction paste-making method |
| CN210218013U (en) * | 2019-07-31 | 2020-03-31 | 中铁工程服务有限公司 | Hydraulic double-liquid grouting pump |
| CN212318282U (en) * | 2020-06-24 | 2021-01-08 | 北京华海基业机械设备有限公司 | Liquid suction and discharge valve |
-
2020
- 2020-06-24 CN CN202010588349.7A patent/CN111608903A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202545230U (en) * | 2012-04-26 | 2012-11-21 | 潍坊胜利石化机械有限公司 | Polymer injection pump |
| CN203796548U (en) * | 2014-01-16 | 2014-08-27 | 浙江众博矿业机械有限公司 | Pump head assembly |
| CN204476737U (en) * | 2014-12-30 | 2015-07-15 | 宁波锦球机械有限公司 | A kind of emulsion pump valve body structure |
| CN205779642U (en) * | 2016-06-24 | 2016-12-07 | 无锡市东亚泵业有限公司 | A kind of reciprocating plunger pump |
| CN107701417A (en) * | 2017-05-05 | 2018-02-16 | 宁波钱湖石油设备有限公司 | A kind of reciprocating pump hydraulic-end structure |
| CN208474056U (en) * | 2018-05-28 | 2019-02-05 | 濮阳市大通机泵有限公司 | A kind of split type fluid end of water injecting pump |
| CN110242530A (en) * | 2019-07-31 | 2019-09-17 | 中铁工程服务有限公司 | Hydraulic double-liquid grouting pump and suction paste-making method |
| CN210218013U (en) * | 2019-07-31 | 2020-03-31 | 中铁工程服务有限公司 | Hydraulic double-liquid grouting pump |
| CN212318282U (en) * | 2020-06-24 | 2021-01-08 | 北京华海基业机械设备有限公司 | Liquid suction and discharge valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586426A (en) * | 2021-09-13 | 2021-11-02 | 无锡威顺煤矿机械有限公司 | Emulsion pump and hydraulic end integrated linear vertical structure thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12000386B2 (en) | Plunger, hydraulic end and plunger pump | |
| CN111692065A (en) | Plunger pump hydraulic end | |
| CN111692064A (en) | Long-life plunger pump hydraulic end | |
| CN209308905U (en) | A kind of anticlogging novel electromagnetic pump | |
| CN111608903A (en) | Liquid suction and discharge valve and working method thereof | |
| CN212318282U (en) | Liquid suction and discharge valve | |
| CN208951017U (en) | The hydraulic structure of bar cropper | |
| CN201982274U (en) | Scraper ring of piston type air compressor | |
| CN103410721B (en) | Fluid end device of plunger pump | |
| CN201705677U (en) | Semi-open impeller submerged slurry pump | |
| EP4227532A1 (en) | Emulsion plunger pump and pump head assembly thereof | |
| CN216111151U (en) | Motor direct-drive fracturing device | |
| CN209818875U (en) | Normally open type pneumatic column unloading valve | |
| CN210715925U (en) | Mechanical sealing device with replaceable static ring | |
| CN107461376A (en) | For improving the hydraulic cylinder of sealing property | |
| CN202971376U (en) | Oil distributing valve for novel ultra-high pressure radial piston pump | |
| CN112360714A (en) | Plunger pump | |
| CN221220776U (en) | Vertical multistage stamping pump with static seal | |
| CN220849969U (en) | Diaphragm chamber discharging mechanism of volumetric pump | |
| CN221003094U (en) | Plunger seal ring assembly for fuel pump | |
| CN203939689U (en) | The axial plunger type hydraulic pump of hydraulic pressure backhaul | |
| CN211009051U (en) | Be suitable for high impurity quality of water plunger pump fluid end structure | |
| CN209212969U (en) | A kind of sealing device of hydraulic pump | |
| CN213088164U (en) | Plunger pump hydraulic end | |
| CN109737049B (en) | Plunger pump hydraulic assembly |
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 |