CN116146498B - Anti-blocking self-cleaning sewage pump for integrated pump station - Google Patents
Anti-blocking self-cleaning sewage pump for integrated pump station Download PDFInfo
- Publication number
- CN116146498B CN116146498B CN202310157208.3A CN202310157208A CN116146498B CN 116146498 B CN116146498 B CN 116146498B CN 202310157208 A CN202310157208 A CN 202310157208A CN 116146498 B CN116146498 B CN 116146498B
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- Prior art keywords
- shearing
- impeller
- cover plate
- pump
- groove
- Prior art date
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- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 239000010865 sewage Substances 0.000 title claims abstract description 22
- 238000010008 shearing Methods 0.000 claims abstract description 88
- 238000004804 winding Methods 0.000 claims abstract description 6
- 230000001154 acute effect Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 12
- 239000012535 impurity Substances 0.000 abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005201 scrubbing Methods 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
- 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
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2216—Shape, geometry
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- 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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an anti-blocking self-cleaning sewage pump for an integrated pump station, which comprises an impeller and a pump body, wherein a shearing device is arranged between the impeller and the inner wall of the pump body and is used for shearing windings entering the pump body. The impeller comprises an impeller front cover plate and an impeller rear cover plate, and shearing devices are respectively arranged between the impeller front cover plate and the impeller rear cover plate and between the impeller rear cover plate and the inner wall of the pump body. The outer edge of the impeller front cover plate or the outer edge of the impeller rear cover plate is at least provided with a first shearing body, and the inner wall of the pump body is at least provided with a second shearing body; the first shearing body and the second shearing body form a shearing device. According to the invention, the flow guiding device and the shearing device are arranged between the impeller and the pump body, so that the blocking problem caused by impurities such as fibers can be relieved, and the function of automatically cleaning the impeller can be realized.
Description
Technical Field
The invention relates to the field of sewage centrifugal pumps, in particular to an anti-blocking self-cleaning sewage pump for an integrated pump station.
Background
As an important hydraulic machine, a water pump has been widely used in various fields of national production. For sewage pumps, the blockage problem can seriously affect the working efficiency of centrifugal pumps, and even threaten the production safety when the pumps are seriously blocked. Thus, for the contaminated water medium, an anti-clogging self-cleaning pump is needed.
The prior art has disclosed a centrifugal pump that prevents blockking up, and the device has set up filter cap and scraping clean structure such as cutting ring at the water inlet of pump, and the device can get rid of the jam problem of water inlet department, but the scrubbing device is complicated and need open again when blockking up, still can not pertinently prevent the jam problem in the centrifugal pump. The invention also discloses a design method of the non-blocking centrifugal pump impeller, which improves the conveying capacity and stability of the centrifugal pump in conveying particles and easy winding mediums by designing a spiral single-flow-channel non-blocking centrifugal pump impeller. The invention can achieve a certain anti-blocking effect, but has no effective anti-blocking and dirt-removing device.
The prior art can not effectively remove impurities such as easy-to-wind fibers, and can not achieve good effects of preventing blockage in the directions such as an inlet and a flow passage of a centrifugal pump.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the anti-blocking self-cleaning sewage pump for the integrated pump station, and the blocking problem caused by impurities such as fibers can be relieved and the automatic cleaning function of the impeller can be realized by arranging the flow guiding device and the shearing device between the impeller and the pump body.
The present invention achieves the above technical object by the following means.
The utility model provides an integration pump station is with preventing blockking up self-cleaning sewage pump, includes impeller and pump body, be equipped with shearing mechanism between impeller and the pump body inner wall for cut the internal winding thing of entering pump.
Further, the impeller comprises an impeller front cover plate and an impeller rear cover plate, and shearing devices are respectively arranged between the impeller front cover plate and the impeller rear cover plate and between the impeller rear cover plate and the inner wall of the pump body.
Further, at least one first shearing body is arranged on the outer edge of the impeller front cover plate or the outer edge of the impeller rear cover plate, and at least one second shearing body is arranged on the inner wall of the pump body; the first shearing body and the second shearing body form a shearing device.
Further, the first shear body and the second shear body are positioned in the same plane; the second shearing body is positioned near the separating tongue of the inner wall of the pump body.
Further, the first shear body is a first shear groove, at least one first shear groove is arranged at the edge of the impeller rear cover plate or the impeller front cover plate, and a first front edge bulge is arranged at one end of the first shear groove; the second shear body is a second shear groove, at least one second shear groove is arranged on the inner wall of the pump body, and a second front edge bulge is arranged at one end of the second shear groove; the first leading edge bulge and the second leading edge bulge form a shearing device.
Further, the cross section of the first shear groove or the second shear groove is triangular or wedge-shaped; the included angle between the first front edge bulge and the inner wall of the first shearing groove is an acute angle; and the included angle between the second front edge bulge and the inner wall of the second shearing groove is an acute angle.
Further, an inlet groove is formed in the inlet of the impeller front cover plate and used for forming clearance backflow in a clearance between the impeller and the pump body; the cross section of the inlet groove is rectangular or trapezoidal.
Further, a plurality of diversion trenches are uniformly distributed on the impeller rear cover plate; the diversion trench is of a structure with a high front part and a low rear part.
Further, the first shearing bodies of the impeller front cover plate and the first shearing bodies of the impeller rear cover plate are distributed in a staggered mode.
Further, a plurality of first shearing bodies are uniformly distributed on the outer edge of the impeller front cover plate or the outer edge of the impeller rear cover plate, and in a rotation period, gaps between the uniformly distributed first shearing bodies and the second shearing bodies are gradually reduced.
The invention has the beneficial effects that:
1. According to the anti-blocking self-cleaning sewage pump for the integrated pump station, the inlet groove is matched with the gap between the impeller and the pump body to form gap backflow, so that the effect of self-cleaning of the impeller is achieved, and inlet blocking is avoided.
2. According to the anti-blocking self-cleaning sewage pump for the integrated pump station, impurities such as fibers can be prevented from winding a transmission shaft by arranging the diversion trench at the rear cover plate of the impeller.
3. According to the anti-blocking self-cleaning sewage pump for the integrated pump station, the shearing structure is adopted to shear the fibers, so that the phenomenon that the impeller is wound and blocked due to easily-wound substances such as the fibers is avoided.
4. According to the anti-blocking self-cleaning sewage pump for the integrated pump station, gaps between the first shearing bodies and the second shearing bodies which are uniformly distributed are gradually reduced in one rotation period, so that the shearing capacity is gradually increased in one rotation period.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described, in which the drawings are some embodiments of the invention, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of an anti-blocking self-cleaning sewage pump for an integrated pump station.
Fig. 2 is a schematic view of an impeller according to the present invention.
Fig. 3 is a schematic view of the front cover plate of the impeller according to the present invention.
Fig. 4 is a schematic view of the back cover plate of the impeller according to the present invention.
FIG. 5 is a cross-sectional view and a partial enlarged view of an anti-clogging self-cleaning sewage pump for an integrated pump station according to the present invention.
FIG. 6 is a B-B cross-sectional view of an anti-clogging self-cleaning sewage pump for an integrated pump station according to the present invention.
In the figure:
1-a motor; 2-a transmission shaft; 3-an impeller; 4-a pump body; 5-mechanical sealing; 6-pump cover, 31-impeller front cover plate; 311-inlet grooves; 312-front cover plate shear slots; 32-impeller back cover plate; 321-diversion trenches; 322-back cover plate shear groove; 323-front edge of the shearing slot of the rear cover plate is convex; 411-front shear slot of pump body; 412-a pump body rear shear tank; 413-pump body shear groove leading edge bulge.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments, but the scope of the invention is not limited thereto.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1 and 2, the anti-blocking self-cleaning sewage pump for the integrated pump station comprises a motor 1, a transmission shaft 2, an impeller 3, a pump body 4 and a pump cover 5; the pump body 4 and the pump cover 5 are closed to form a closed space, the motor 1 is connected with the impeller 3 through the transmission shaft 2 in the closed space to drive the impeller 3 to rotate, and a mechanical seal 5 is further arranged between the impeller 3 and the transmission shaft 2, so that the sealing performance of the pump is further improved. The impeller 3 in the invention adopts a micro-open impeller structure, namely the impeller 3 comprises an impeller front cover plate 31 and an impeller rear cover plate 32, and the micro-open impeller structure can avoid the problems of low efficiency of an open centrifugal pump and easy blockage of a closed centrifugal pump. A gap is left between the impeller front cover plate 31 and the impeller rear cover plate 32 and the pump body 4, respectively. Shearing devices are respectively arranged between the impeller front cover plate 31 and the impeller rear cover plate 32 and the inner wall of the pump body 4, specifically, at least one first shearing body is arranged on the outer edge of the impeller front cover plate 31 or the outer edge of the impeller rear cover plate 32, and at least one second shearing body is arranged on the inner wall of the pump body 4; the first shearing body and the second shearing body form a shearing device. The first shearing body and the second shearing body are positioned in the same plane; the second shear body is positioned near a partition tongue of the inner wall of the pump body 4.
As shown in fig. 3, in the impeller front cover plate 31 according to the present invention, a plurality of inlet grooves 311 with rectangular or trapezoidal cross sections are provided at the inlet of the impeller front cover plate 31 as a flow guiding device, the inlet grooves 311 can disorder the fluid at the inlet, prevent impurities from accumulating at the inlet of the pump, and the inlet grooves 311 cooperate with the gap between the impeller front cover plate 31 and the pump body 4 to form a gap backflow, wash the gap between the impeller front cover plate 31 and the pump body 4, and drain the backflow liquid to the inlet, further prevent the accumulation of impurities to generate blockage or increase friction between the pump body 4 and the impeller front cover plate 31.
As shown in fig. 4, in the impeller back cover plate 32 according to the present invention, a plurality of diversion trenches 321 are provided on the outer side of the impeller back cover plate 32 as diversion devices, the diversion trenches 321 are in an arc shape, and adopt a structure with low front and high rear, so that fiber impurities in the liquid can be blocked in time and drained to the outlet of the impeller 3 by means of the centrifugal force of the impeller 3, and the fiber impurities can be effectively prevented from being wound at the connection position of the impeller 3 and the transmission shaft 2, thereby causing blockage.
Shearing devices are respectively arranged between the impeller front cover plate 31 and the impeller rear cover plate 32 and the inner wall of the pump body 4. The shearing device between the impeller back cover plate 32 and the inner wall of the pump body 4 is exemplified below as shown in fig. 5. 4 rear cover plate shearing grooves 322 are uniformly distributed on the outer edge of the impeller rear cover plate 32, and a pump body rear shearing groove 412 is formed in the inner wall of the pump body 4; one end of the back cover plate cutting groove 322 is provided with a front edge bulge 323 of the back cover plate cutting groove; one end of the pump body rear shearing groove 412 is provided with a pump body shearing groove front edge bulge 413; the front edge protrusion 323 of the rear cover plate shear groove and the front edge protrusion 413 of the pump body shear groove form a shearing device. The back plate shear groove 322 is located in the same shear plane as the pump body back shear groove 412. When the front edge bulge 323 of the rear cover plate shearing groove is adjacent to the front edge bulge 413 of the pump body shearing groove, impurities such as fibers are sheared by utilizing the shearing device when the impeller 3 rotates, and winding and blocking of the impeller 3 caused by easily-wound substances such as fibers are avoided. The front edge bulge 323 of the rear cover plate shear groove and the front edge bulge 413 of the pump body shear groove can be straight lines or arc lines; the cross sections of the pump body rear shear groove 412 and the rear cover plate shear groove 322 are triangular or wedge-shaped; the included angle between the front edge bulge 413 of the pump body shearing groove and the inner wall of the pump body rear shearing groove 412 is an acute angle; the front edge bulge 323 of the rear cover plate shearing groove and the inner wall of the rear cover plate shearing groove 322 form an acute angle, so that a better shearing effect is achieved. The shearing device between the impeller front cover plate 31 and the inner wall of the pump body 4 is shown in fig. 6.
The first shearing bodies of the impeller front cover plate 31 and the first shearing bodies of the impeller rear cover plate 32 are distributed in a staggered manner, so that the shearing times of one period can be increased, and meanwhile, the cross shearing force of the fiber with a larger length can be realized.
The outer edge of the impeller front cover plate 31 or the outer edge of the impeller rear cover plate 32 is uniformly provided with a plurality of first shearing bodies, and in one rotation period, gaps between the first shearing bodies and the second shearing bodies which are uniformly distributed are gradually reduced, so that multistage shearing in one rotation period is realized, and the effect on coarser fiber is better.
According to the invention, the anti-blocking self-cleaning sewage pump for the integrated pump station can be connected in series to form a multi-stage sewage pump, so that the working efficiency is improved.
It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (4)
1. The anti-blocking self-cleaning sewage pump for the integrated pump station is characterized by comprising an impeller (3) and a pump body (4), wherein a shearing device is arranged between the impeller (3) and the inner wall of the pump body (4) and is used for shearing a winding entering the pump body (4);
The impeller (3) comprises an impeller front cover plate (31) and an impeller rear cover plate (32), and shearing devices are respectively arranged between the impeller front cover plate (31) and the impeller rear cover plate (32) and the inner wall of the pump body (4); an inlet groove (311) is formed at the inlet of the impeller front cover plate (31) and is used for forming clearance backflow in a clearance between the impeller (3) and the pump body (4); the cross section of the inlet groove (311) is rectangular or trapezoidal; at least one first shearing body is arranged on the outer edge of the impeller front cover plate (31) or the outer edge of the impeller rear cover plate (32), and at least one second shearing body is arranged on the inner wall of the pump body (4); the first shearing body and the second shearing body form a shearing device; the first shearing body and the second shearing body are positioned in the same plane; the second shearing body is positioned near a partition tongue on the inner wall of the pump body (4); the first shearing body is a first shearing groove, at least one first shearing groove is formed in the edge of the impeller rear cover plate (32) or the impeller front cover plate (31), and a first front edge bulge is formed in one end of the first shearing groove; the second shear body is a second shear groove, at least one second shear groove is arranged on the inner wall of the pump body (4), and a second front edge bulge is arranged at one end of the second shear groove; the first front edge bulge and the second front edge bulge form a shearing device; the cross section of the first shearing groove or the second shearing groove is triangular or wedge-shaped; the included angle between the first front edge bulge and the inner wall of the first shearing groove is an acute angle; and the included angle between the second front edge bulge and the inner wall of the second shearing groove is an acute angle.
2. The anti-blocking self-cleaning sewage pump for an integrated pump station according to claim 1, wherein a plurality of diversion trenches (321) are uniformly distributed on the impeller rear cover plate (32); the diversion trench (321) has a structure with a high front part and a low rear part.
3. The anti-clogging self-cleaning sewage pump for an integrated pump station according to claim 1, wherein the first shearing bodies of the impeller front cover plate (31) and the first shearing bodies of the impeller rear cover plate (32) are staggered.
4. The anti-blocking self-cleaning sewage pump for an integrated pump station according to claim 1, wherein a plurality of first shearing bodies are uniformly distributed on the outer edge of the impeller front cover plate (31) or the outer edge of the impeller rear cover plate (32), and in one rotation period, gaps between the uniformly distributed first shearing bodies and the second shearing bodies are gradually reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310157208.3A CN116146498B (en) | 2023-02-23 | 2023-02-23 | Anti-blocking self-cleaning sewage pump for integrated pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310157208.3A CN116146498B (en) | 2023-02-23 | 2023-02-23 | Anti-blocking self-cleaning sewage pump for integrated pump station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116146498A CN116146498A (en) | 2023-05-23 |
| CN116146498B true CN116146498B (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310157208.3A Active CN116146498B (en) | 2023-02-23 | 2023-02-23 | Anti-blocking self-cleaning sewage pump for integrated pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116146498B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2898390Y (en) * | 2006-04-21 | 2007-05-09 | 江苏大学 | Impeller-gap adjusting mechanism of sewage pump with drainage channel |
| CN104314860A (en) * | 2014-09-24 | 2015-01-28 | 江苏大学 | Impeller for low-specific speed centrifugal pump |
| CN208686594U (en) * | 2018-08-30 | 2019-04-02 | 四川川工泵业有限公司 | Electric lime-ash liquid pump under New |
| CN110541830A (en) * | 2019-08-28 | 2019-12-06 | 中国计量大学 | Self-suction sewage pump with double-opening ring seal |
| CN212297010U (en) * | 2020-01-14 | 2021-01-05 | 江苏大学镇江流体工程装备技术研究院 | Vortex pump impeller with groove structure |
-
2023
- 2023-02-23 CN CN202310157208.3A patent/CN116146498B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2898390Y (en) * | 2006-04-21 | 2007-05-09 | 江苏大学 | Impeller-gap adjusting mechanism of sewage pump with drainage channel |
| CN104314860A (en) * | 2014-09-24 | 2015-01-28 | 江苏大学 | Impeller for low-specific speed centrifugal pump |
| CN208686594U (en) * | 2018-08-30 | 2019-04-02 | 四川川工泵业有限公司 | Electric lime-ash liquid pump under New |
| CN110541830A (en) * | 2019-08-28 | 2019-12-06 | 中国计量大学 | Self-suction sewage pump with double-opening ring seal |
| CN212297010U (en) * | 2020-01-14 | 2021-01-05 | 江苏大学镇江流体工程装备技术研究院 | Vortex pump impeller with groove structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116146498A (en) | 2023-05-23 |
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