CN113586454B - Single-stage single-suction pump with noise reduction function - Google Patents
Single-stage single-suction pump with noise reduction function Download PDFInfo
- Publication number
- CN113586454B CN113586454B CN202110845053.3A CN202110845053A CN113586454B CN 113586454 B CN113586454 B CN 113586454B CN 202110845053 A CN202110845053 A CN 202110845053A CN 113586454 B CN113586454 B CN 113586454B
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- pipe
- communicating pipe
- pump body
- noise reduction
- filter screen
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- 230000009467 reduction Effects 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000002955 isolation Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000010813 municipal solid waste Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 17
- 239000012535 impurity Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 244000309464 bull Species 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of single-stage single-suction pumps, and discloses a single-stage single-suction pump with a noise reduction function, which comprises a pump body, a motor and a noise reduction box, wherein an output shaft of the motor penetrates through the pump body to be in transmission connection with an impeller in the motor, one side, far away from the motor, of the pump body is communicated with a water inlet pipe, and one side, perpendicular to the water inlet pipe, of the pump body is provided with a water outlet pipe; the water outlet pipe is connected with a water outlet assembly on one side far away from the pump body, the water outlet assembly comprises a communicating pipe, a shunt pipe and a converging pipe, one end of the shunt pipe far away from the communicating pipe is communicated with the end part of the converging pipe, an isolation belt is fixedly arranged in the communicating pipe, a sealing plug is arranged on one side, close to the water outlet pipe, of the isolation belt, and the sealing plug is movably connected with the communicating pipe; the inner wall of the shunt tube is fixedly provided with a fixed plate, and the fixed plate is provided with a filter screen through a screw. The fluid is subjected to split treatment, so that the water pressure is reduced, the impact is reduced, the noise is reduced, and meanwhile, impurities are effectively filtered through the filter screen.
Description
Technical field:
the invention relates to the technical field of single-stage single-suction pumps, in particular to a single-stage single-suction pump with a noise reduction function.
The background technology is as follows:
the single-stage single-suction centrifugal pump is a water pump which is most commonly applied in agriculture, and compared with other centrifugal pumps, the single-stage single-suction centrifugal pump has the advantages of high lift, smaller flow, simple structure and convenient use, and is used for conveying clear water or other liquids with physical and chemical properties similar to those of water. The existing single-stage single-suction pump generates larger noise when the process fluid is used to be in quick contact with a pipeline to collide with the pipeline, so that noise pollution is caused, people nearby are uncomfortable after long-term use, and impurities in the fluid are not easy to filter.
The invention comprises the following steps:
aiming at the problems in the prior art, the invention aims to provide a single-stage single-suction pump with a noise reduction function.
The technical problems to be solved by the invention are realized by adopting the following technical scheme: the single-stage single-suction pump with the noise reduction function comprises a pump body, a motor and a noise reduction box, wherein the pump body and the motor are both arranged in the noise reduction box, an output shaft of the motor penetrates through the pump body to be in transmission connection with an impeller in the motor, one side, far away from the motor, of the pump body is communicated with a water inlet pipe, and a water outlet pipe is arranged on one side, perpendicular to the water inlet pipe, of the pump body;
the water outlet pipe is far away from one side of the pump body and is connected with a water outlet assembly, the water outlet assembly comprises two groups of communicating pipes, split pipes and converging pipes, the split pipes are arranged on two sides of the communicating pipes, one end of each split pipe far away from each communicating pipe is communicated with one end of each converging pipe, an isolation belt is fixedly arranged in each communicating pipe, the isolation belt is arranged on one side, far away from the water outlet pipe, of the junction of each split pipe and each communicating pipe, a sealing plug is arranged on one side, close to the water outlet pipe, of each isolation belt, and each sealing plug is movably connected with each communicating pipe;
the inner wall of the shunt tube is fixedly provided with a fixed plate, and the fixed plate is provided with a filter screen through a screw.
Preferably, the cross section of the shunt tube is U-shaped, the shunt tube consists of a section of vertical pipeline and horizontal pipelines at two ends, one group of horizontal pipelines is vertically connected with the communicating pipe, and the filter screen is arranged inside the horizontal pipeline communicated with the communicating pipe.
Preferably, the bottom of the communicating pipe is provided with a trash hole, the trash hole is positioned on one side of the filter screen close to the communicating pipe, a swivel is rotatably arranged on the outer side of the shunt pipe, and a through hole is correspondingly arranged on the swivel and corresponds to the trash hole.
Preferably, the top of the communicating pipe is provided with an opening, a sealing cover is in threaded connection with the outer side of the opening, a sleeve is fixedly installed at the bottom of the sealing cover, a push rod is connected in a sliding manner in the sleeve, a spring is fixedly connected between the push rod and the sleeve, and the bottom end of the push rod is in butt joint with the isolation belt.
Preferably, the noise reduction box is internally filled with wave crest sponge, and the outer side of the noise reduction box is uniformly coated with a waterproof coating.
Preferably, a flowmeter is arranged in the middle of the shunt tube.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the impact between fluids and an output pipeline is avoided when the pump body works through the cooperation of the isolation belt, the sealing plug and the communicating pipe, the sealing plug moves upwards when the water pressure in the communicating pipe gradually rises, the fluids are split and discharged through the split pipes at the two sides of the communicating pipe and then are converged and discharged by the converging pipes, the fluids are split and treated, the water pressure is reduced, the impact is reduced, and thus the noise is reduced, compared with the pipeline, the sealing plug is softer, the impact between the fluids and the sealing plug is lower in noise, the noise reduction box and the peak sponge filled in the noise reduction box absorb the noise generated by the pump body and the motor, the noise is effectively reduced, and the filter screen arranged in the split pipes filters the impurities mixed in the fluids, so that the impurities are effectively filtered.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed in the description of the embodiments will be briefly described below, it will be apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art;
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a filter screen mounting structure according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of the internal structure of the sleeve according to the present invention;
fig. 5 is a schematic view of the internal structure of the shunt of the present invention;
FIG. 6 is an enlarged view of a portion of the invention at B in FIG. 5;
wherein: 1. a pump body; 2. a motor; 3. an impeller; 4. a water inlet pipe; 5. a water outlet pipe; 6. a drainage assembly; 601. a communicating pipe; 602. a shunt; 6021. a impurity removing hole; 603. a flow combining pipe; 7. a flow meter; 8. a separator; 9. a swivel; 901. a via hole; 10. a cover; 11. a sleeve; 12. a push rod; 13. a spring; 14. a brush; 15. a sealing plug; 16. a fixing plate; 17. a filter screen; 18. a rotating rod; 19. a guide plate; 1901. a guide groove; 20. a pin shaft; 21. a noise reduction box; 22. a waterproof coating; 23. a wave crest sponge.
The specific embodiment is as follows:
the invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
Example 1:
as shown in fig. 1-4, a single-stage single-suction pump with noise reduction function comprises a pump body 1, a motor 2 and a noise reduction box 21, wherein a wave crest sponge 23 and a wave crest sponge with a unique shape are filled in the noise reduction box 21, the wave crest sponge is used in sound insulation and noise reduction, the absorption capacity of the wave crest sponge to high frequency is very strong, the wave crest sponge can also be used in sound absorption treatment, and a waterproof coating 22 is uniformly smeared on the outer side of the noise reduction box 21. The pump body 1 and the motor 2 are both arranged in the noise reduction box 21, the wave crest sponge 23 effectively absorbs noise generated by the inside of the pump body 1 and the motor 2, noise pollution is reduced, an output shaft of the motor 2 penetrates through the pump body 1 to be in transmission connection with an impeller 3 in the motor, one side, far away from the motor 2, of the pump body 1 is communicated with a water inlet pipe 4, and one side, perpendicular to the water inlet pipe 4, of the pump body 1 is provided with a water outlet pipe 5; the impeller 3 is driven to rotate at a high speed by the motor 2, and fluid is sucked through the water inlet pipe 4 and then discharged through the water outlet pipe 5.
The water outlet pipe 5 is connected with a water outlet assembly 6 on the side far away from the pump body 1, the water outlet assembly 6 comprises two groups of communicating pipes 601, a shunt pipe 602 and a converging pipe 603, the shunt pipes 602 are arranged on two sides of the communicating pipes 601, one end of each shunt pipe 602 far away from each communicating pipe 601 is communicated with the end part of each converging pipe 603, an isolation belt 8 is fixedly installed inside each communicating pipe 601, the isolation belt 8 is located on the side, far away from the water outlet pipe 5, of the junction between each shunt pipe 602 and each communicating pipe 601, a sealing plug 15 is installed on the side, close to the water outlet pipe 5, of each isolation belt 8, and each sealing plug 15 is movably connected with each communicating pipe 601;
specifically, avoid taking place the striking with output pipeline between pump body 1 during operation fluid through median 8, sealing plug 15 and communicating pipe 601 cooperation, sealing plug 15 upwards moves when communicating pipe 601 internal water pressure risees gradually, and the fluid carries out the reposition of redundant personnel discharge through shunt tubes 602 of communicating pipe 601 both sides, then is joined the discharge by confluence tube 603, carries out reposition of redundant personnel processing with the fluid, reduces water pressure, thereby reduces the striking and reduce noise, and sealing plug 15 compares the pipeline more soft simultaneously, and fluid and sealing plug 15 striking itself noise is less, compares traditional single-pipe transportation and has obvious noise reduction effect.
The top of the communicating pipe 601 is provided with an opening, a sealing cover 10 is connected with the outside of the opening in a threaded manner, a sleeve 11 is fixedly arranged at the bottom of the sealing cover 10, a push rod 12 is connected in a sliding manner in the sleeve 11, a spring 13 is fixedly connected between the push rod 12 and the sleeve 11, and the bottom end of the push rod 12 is abutted to the isolation belt 8.
Specifically, install closing cap 10 at communicating pipe 601 top through threaded connection's mode, the elasticity effect through spring 13 is ejecting ejector pin 12 relative sleeve 11, ejector pin 12 bottom drives median portion down and moves, make median 8 be in an approximate circular arc shape, simultaneously drive sealing plug 15 and move down, sealing plug 15 is close to and the two relative slip of communicating pipe 601 lateral wall, sealing plug 15 cuts off the separation with shunt tubes 602 and communicating pipe 601, impeller 3 rotatory work is inside the fluid suction pump body 1, the water pressure in communicating pipe 601 increases gradually, jack-up sealing plug 15 upwards, thereby fluid flows away through shunt tubes 602 of both sides, shunt pressure reduction noise.
The inner wall of the shunt tube 602 is fixedly provided with a fixing plate 16, and the fixing plate 16 is provided with a filter screen 17 through screws.
The cross-sectional shape of the shunt tube 602 is U-shaped, the shunt tube 602 is composed of a section of vertical pipeline and two ends of horizontal pipeline, wherein a group of horizontal pipelines are vertically connected with the communicating pipe 601, the filter screen 17 is installed inside the horizontal pipeline communicated with the communicating pipe 601, and the flowmeter 7 is arranged in the middle of the shunt tube 602.
The bottom of the communicating pipe 601 is provided with a trash hole 6021, the trash hole 6021 is positioned on one side of the filter screen 17 close to the communicating pipe 601, a swivel 9 is rotatably arranged on the outer side of the shunt pipe 602, and a through hole 901 is correspondingly arranged on the swivel 9 and corresponds to the trash hole 6021.
Specifically, the fluid can mix partial impurity in carrying the in-process, separates impurity in filter screen 17 one side through filter screen 17, can judge the flow size in shunt tubes 602 through flowmeter 7, and the flow that flowmeter 7 shows is less, and the explanation corresponds shunt tubes 602 inside probably causes the jam, and rotatory swivel 9 makes conduction hole 901 and the corresponding cooperation of trash hole 6021 this moment, can discharge impurity from shunt tubes 602 in, effectively solves the jam problem, improves the conveying efficiency of fluid.
Example 2:
on the basis of example 1, as shown in fig. 5 and 6; the cross-section of filter screen 17 is circular arc shape and centre of a circle is located and is close to sealing plug 15 one side, communicating pipe 601 inside rotation is installed bull stick 18, the rotation center of bull stick 18 and the centre of a circle coincidence of filter screen 17, sealing plug 15 both sides are all fixed mounting has deflector 19, be equipped with guide way 1901 on the deflector 19, round pin axle 20 is installed to bull stick 18 one end, round pin axle 20 is located guide way 1901 and rather than sliding connection, brush 14 is installed to the bull stick 18 other end, brush 14 inserts in the mesh of filter screen 17.
Specifically, the sealing plug 15 can slide relative to the communicating pipe 601, whether the shunt 602 is communicated with the communicating pipe 601 or not and the size of the cross section of the communication is controlled through the movement of the sealing plug 15, the guide plates 19 on two sides of the sealing plug 15 are driven to synchronously move while moving, the pin shaft 20 moves along the groove of the guide groove 1901 under the guiding action of the guide groove 1901, the rotating rod 18 is driven to rotate in the shunt 602, and the rotating center of the rotating rod 18 coincides with the circle center of the filter screen 17, so that when the rotating rod 18 rotates, the brush 14 and the filter screen 17 at one end of the rotating rod 18 are relatively moved, the brush 14 is soft matters and is inserted into the mesh of the filter screen 17, when the brush 14 scrapes along the surface of the filter screen 17, fibrous impurities blocked inside the mesh can be effectively scraped, the blocking problem is effectively solved, and the flow stability inside the shunt 602 is ensured.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. A single-stage single-suction pump with noise reduction function is characterized in that: the novel noise reduction device comprises a pump body (1), a motor (2) and a noise reduction box (21), wherein the pump body (1) and the motor (2) are both arranged inside the noise reduction box (21), an output shaft of the motor (2) penetrates through the pump body (1) to be in transmission connection with an impeller (3) inside the pump body, one side, far away from the motor (2), of the pump body (1) is communicated with a water inlet pipe (4), and one side, perpendicular to the water inlet pipe (4), of the pump body (1) is provided with a water outlet pipe (5);
the utility model discloses a pump body, including pump body (1) and outlet pipe, outlet pipe (5) are kept away from pump body (1) one side and are connected with drainage subassembly (6), drainage subassembly (6) are including communicating pipe (601), shunt tubes (602) and confluence pipe (603), shunt tubes (602) are equipped with two sets of and are located communicating pipe (601) both sides, shunt tubes (602) are kept away from communicating pipe (601) one end and confluence pipe (603) tip intercommunication, communicating pipe (601) internally fixed mounting has median (8), median (8) are located shunt tubes (602) and communicating pipe (601) junction and keep away from outlet pipe (5) one side, sealing plug (15) are installed to median (8) one side near outlet pipe (5), sealing plug (15) and communicating pipe (601) swing joint.
A fixed plate (16) is fixedly arranged on the inner wall of the shunt tube (602), and a filter screen (17) is arranged on the fixed plate (16) through a screw;
the cross section of the shunt tube (602) is U-shaped, the shunt tube (602) consists of a section of vertical pipeline and horizontal pipelines at two ends, one group of horizontal pipelines is vertically connected with the communicating pipe (601), and the filter screen (17) is arranged inside the horizontal pipeline communicated with the communicating pipe (601);
the bottom of the communicating pipe (601) is provided with a trash hole (6021), the trash hole (6021) is positioned on one side of the filter screen (17) close to the communicating pipe (601), a swivel (9) is rotatably arranged on the outer side of the shunt pipe (602), and a through hole (901) is formed in the swivel (9) and corresponds to the trash hole (6021);
the cross section of the filter screen is in an arc shape, the circle center of the filter screen is positioned at one side close to the sealing plug, a rotating rod is rotatably arranged in the communicating pipe, the rotation center of the rotating rod coincides with the circle center of the filter screen, guide plates are fixedly arranged at two sides of the sealing plug, guide grooves are formed in the guide plates, a pin shaft is arranged at one end of the rotating rod, the pin shaft is positioned in the guide grooves and is in sliding connection with the guide grooves, a brush is arranged at the other end of the rotating rod, and the brush is inserted into a mesh of the filter screen;
the top of the communicating pipe (601) is provided with an opening, a sealing cover (10) is connected with the outside of the opening in a threaded manner, a sleeve (11) is fixedly installed at the bottom of the sealing cover (10), a push rod (12) is connected in a sliding manner in the sleeve (11), a spring (13) is fixedly connected between the push rod (12) and the sleeve (11), and the bottom end of the push rod (12) is abutted to the isolation belt (8);
a flowmeter (7) is arranged in the middle of the shunt tube (602).
2. A single stage single suction pump with noise reduction according to claim 1, characterized in that: the noise reduction box (21) is internally filled with wave crest sponge (23), and a waterproof coating (22) is uniformly coated on the outer side of the noise reduction box (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110845053.3A CN113586454B (en) | 2021-07-26 | 2021-07-26 | Single-stage single-suction pump with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110845053.3A CN113586454B (en) | 2021-07-26 | 2021-07-26 | Single-stage single-suction pump with noise reduction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113586454A CN113586454A (en) | 2021-11-02 |
| CN113586454B true CN113586454B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110845053.3A Active CN113586454B (en) | 2021-07-26 | 2021-07-26 | Single-stage single-suction pump with noise reduction function |
Country Status (1)
| Country | Link |
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| CN (1) | CN113586454B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586460B (en) * | 2021-07-26 | 2024-04-02 | 安徽埃斯克制泵有限公司 | Wear-resistant sewage self-priming pump |
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| CN1952407A (en) * | 2005-10-20 | 2007-04-25 | 宣伯民 | Centrifugal pump having extrusion chamber with subchannel |
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| CN207333195U (en) * | 2017-08-08 | 2018-05-08 | 上海丹泉泵业(集团)有限公司 | A kind of energy-efficient stainless steel centrifugal multistage pump multiple centrifugal pump |
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| CN210531152U (en) * | 2019-08-29 | 2020-05-15 | 吴永何 | Water pump for hydroelectric power generation |
| CN211525090U (en) * | 2019-12-10 | 2020-09-18 | 武汉五二五泵业有限公司 | Pump head for self-balancing multistage heart pump |
| CN213298268U (en) * | 2020-10-23 | 2021-05-28 | 江苏格里克真空技术有限公司 | Screw type vacuum pump |
| CN113586460A (en) * | 2021-07-26 | 2021-11-02 | 安徽埃斯克制泵有限公司 | Wear-resisting type blowdown self priming pump |
-
2021
- 2021-07-26 CN CN202110845053.3A patent/CN113586454B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952407A (en) * | 2005-10-20 | 2007-04-25 | 宣伯民 | Centrifugal pump having extrusion chamber with subchannel |
| CN207333195U (en) * | 2017-08-08 | 2018-05-08 | 上海丹泉泵业(集团)有限公司 | A kind of energy-efficient stainless steel centrifugal multistage pump multiple centrifugal pump |
| CN207261261U (en) * | 2017-08-14 | 2018-04-20 | 瑞安市博纳汽车部件有限公司 | A kind of conduction type centrifugal pump |
| CN208702705U (en) * | 2018-07-10 | 2019-04-05 | 四川润物供水系统有限公司 | A kind of water supply pump of the domestic water system convenient for removing contamination |
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| CN211525090U (en) * | 2019-12-10 | 2020-09-18 | 武汉五二五泵业有限公司 | Pump head for self-balancing multistage heart pump |
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| CN113586460A (en) * | 2021-07-26 | 2021-11-02 | 安徽埃斯克制泵有限公司 | Wear-resisting type blowdown self priming pump |
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| Publication number | Publication date |
|---|---|
| CN113586454A (en) | 2021-11-02 |
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