CN114790998B - Deep well pump and impeller support structure - Google Patents
Deep well pump and impeller support structure Download PDFInfo
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- CN114790998B CN114790998B CN202111584052.4A CN202111584052A CN114790998B CN 114790998 B CN114790998 B CN 114790998B CN 202111584052 A CN202111584052 A CN 202111584052A CN 114790998 B CN114790998 B CN 114790998B
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- impeller
- ring
- bottom plate
- well pump
- support
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- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 27
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 238000000034 method Methods 0.000 description 7
- 238000005086 pumping Methods 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010865 sewage 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
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/185—Rotors consisting of a plurality of wheels
-
- 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
- F04D1/06—Multi-stage 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
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
- F04D29/0473—Bearings hydrostatic; hydrodynamic for radial 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
- F04D29/2233—Construction and assembly entirely open or stamped from one sheet
-
- 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
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本发明提供了一种深井泵叶轮支撑结构，叶轮轴上布置多级传动配合的叶轮组件，叶轮组件内设置叶轮；叶轮的叶片上固接有叶轮顶板和叶轮底板，叶轮底板上伸出有叶轮轴承圈，叶轮组件的顶部伸出与叶轮轴承圈支撑配合的叶轮轴承座。多级叶轮由叶轮轴套，和叶轮上的导流体进行轴向支撑，叶轮通过叶片分别连接叶轮顶板和叶轮底板，叶轮底板与叶轮同步转动，在叶轮底板上伸出叶轮轴承圈，对应在叶轮组件上设置叶轮轴承座，将叶轮由叶轮轴套和叶轮底板两个位置，同时进行轴向和径向支撑，提高叶轮的转动平衡能力，满足大流量的泵体流量要求，提高泵体的平衡能力。本发明还提供了一种深井泵。
The present invention provides a deep well pump impeller support structure, wherein an impeller assembly with multi-stage transmission is arranged on the impeller shaft, and an impeller is arranged inside the impeller assembly; an impeller top plate and an impeller bottom plate are fixedly connected to the impeller blades, an impeller bearing ring extends from the impeller bottom plate, and an impeller bearing seat supporting and cooperating with the impeller bearing ring extends from the top of the impeller assembly. The multi-stage impeller is axially supported by an impeller sleeve and a guide body on the impeller, and the impeller is connected to the impeller top plate and the impeller bottom plate respectively through blades, and the impeller bottom plate rotates synchronously with the impeller, and an impeller bearing ring extends from the impeller bottom plate, and an impeller bearing seat is correspondingly arranged on the impeller assembly, and the impeller is axially and radially supported at two positions, the impeller sleeve and the impeller bottom plate, to improve the rotational balance ability of the impeller, meet the flow requirements of a large flow pump body, and improve the balance ability of the pump body. The present invention also provides a deep well pump.
Description
Technical Field
The invention relates to the technical field of deep-well pumps, in particular to a deep-well pump and an impeller supporting structure.
Background
The deep well pump comprises a motor and a pump body which are axially connected into a whole, and pumping and water conveying operations are carried out in the deep well.
Deep well pumps are widely used for agricultural irrigation, industrial and mining enterprises, urban water supply and drainage, and sewage treatment. Because deep well pumps require deep-well operations, they are subjected to large water flow pressures when operated underwater. The multistage impeller assembly is coaxially arranged in the pump body of the deep-well pump and is synchronously driven by the impeller shaft, and for the deep-well pump with large flow, the impeller shaft bears large centrifugal force, so that the impeller shaft is easy to flex and deform after working for a long time, and the working stability of the impeller shaft is influenced.
Disclosure of Invention
In view of the above, the invention provides a deep well pump impeller supporting structure to improve the working stability of a high-flow deep well pump; the invention also provides a deep well pump.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the impeller supporting structure of the deep well pump is characterized in that an impeller assembly matched with multistage transmission is arranged on an impeller shaft, an impeller is arranged in the impeller assembly, the impeller is provided with an impeller top plate, blades are arranged on the impeller top plate, and an impeller bottom plate is arranged at the lower ends of the blades;
The upper end face of the impeller bottom plate is fixedly connected with the blades, an impeller bearing ring extends out of the lower end face of the impeller bottom plate, and the top of the impeller assembly extends out of an impeller bearing seat which is in supporting fit with the impeller bearing ring.
Preferably, in the deep-well pump impeller supporting structure, the impeller is provided with an impeller shaft sleeve which is held on the impeller shaft, a flow guide body with one end matched with the impeller at the previous stage is arranged in the impeller assembly, and an impeller supporting hole matched with the impeller shaft support of the impeller at the next stage is formed in the flow guide body.
Preferably, in the deep-well pump impeller supporting structure, the impeller bearing seat comprises a supporting hole on the guide seat with a step structure, and a supporting ring falling in the supporting hole on the guide seat;
the support ring comprises an annular transverse part and an annular sleeve extending out of the middle of the annular transverse part;
The annular transverse part is fixedly arranged on the step structure of the supporting hole on the flow guiding seat.
Preferably, in the deep-well pump impeller supporting structure, the supporting ring is made of metal.
Preferably, in the deep-well pump impeller supporting structure, an inner ring of the impeller bearing ring is provided with a limiting step overlapped with the top of the annular sleeve, and the inner ring of the impeller bearing ring is identical to the inner diameter of the annular sleeve.
Preferably, in the deep-well pump impeller supporting structure, the inner ring of the impeller bearing ring is provided with a plurality of pressurizing channels penetrating through the thickness direction of the impeller bearing ring, and the pressurizing channels are communicated with the impeller bearing seat.
Preferably, in the deep-well pump impeller supporting structure, a first friction plate is fixedly arranged at the bottom of the impeller supporting hole, and a second friction plate is fixedly arranged at the bottom of the impeller shaft sleeve; the first friction plate and the second friction plate are in press fit in the axial direction.
Preferably, in the deep-well pump impeller supporting structure, the first friction plate is a ceramic plate, and the second friction plate is an alloy friction plate.
Preferably, in the deep-well pump impeller supporting structure, the impeller assembly includes a guide seat, an impeller and a guide body arranged along a fluid outflow direction;
The flow guide seat comprises an upper flow guide seat cavity and a lower flow guide seat cavity, a fluid outlet is formed in the upper flow guide seat cavity, a fluid inlet is formed in the lower flow guide seat cavity, the impeller bearing ring is arranged on the inner ring of the impeller bottom plate, and the outer ring of the impeller bottom plate falls into the fluid inlet.
A deep-well pump, including the pump body and set up in the internal multistage impeller subassembly of pump, its characterized in that, multistage have above arbitrary deep-well pump impeller bearing structure between the impeller subassembly.
According to the deep-well pump impeller supporting structure provided by the invention, the impeller shaft is provided with the impeller assembly matched with the multistage transmission, the impeller is arranged in the impeller assembly, the impeller top plate and the impeller bottom plate are fixedly connected on the blades of the impeller, the impeller bottom plate is extended with the impeller bearing ring, and the top of the impeller assembly is extended with the impeller bearing seat matched with the impeller bearing ring in a supporting way. The multistage impeller is axially supported by the impeller shaft sleeve and the flow guide body on the impeller, the impeller is respectively connected with the impeller top plate and the impeller bottom plate through blades, the impeller bottom plate and the impeller synchronously rotate, the impeller bearing ring extends out of the impeller bottom plate, the impeller bearing seat is correspondingly arranged on the impeller assembly, the impeller is axially and radially supported by the impeller shaft sleeve and the impeller bottom plate at two positions, the rotation balance capacity of the impeller is improved, the flow requirement of a large-flow pump body is met, and the balance capacity of the pump body is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a deep well pump impeller support structure provided by the invention;
FIG. 2 is a cross-sectional view of the support structure of the impeller bearing ring of FIG. 1;
Fig. 3 is an exploded view of the structure of the impeller bearing seat of fig. 1.
Detailed Description
The invention discloses a deep well pump impeller supporting structure, which improves the working stability of a high-flow deep well pump; the invention also provides a deep well pump.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-3, FIG. 1 is a cross-sectional view of a deep well pump impeller support structure provided by the invention; FIG. 2 is a cross-sectional view of the support structure of the impeller bearing ring of FIG. 1; fig. 3 is an exploded view of the structure of the impeller bearing seat of fig. 1.
In the impeller diversion structure of the deep-well pump, an impeller shaft 1 drives an impeller 2 to rotate to pump water, a diversion seat 3 is arranged on the periphery of the impeller 2, a plurality of impellers 2 and the diversion seat 3 are structurally connected in series and fixed in a pump body to pump fluid.
In the direction of pumping out the impeller 2, the impeller shaft 1 is also provided with a guide body 4, the impeller 2 and the guide body 4 are assembled and arranged in the guide seat 3, the impeller 1 rotates to generate centrifugal force, fluid in the centrifugal force is thrown into the guide seat 3 through impeller blades 21 at the periphery of the impeller, and the guide seat 3 is surrounded by a guide cavity between the impeller and the guide body 4 to transfer the fluid to the impeller at the next stage until the fluid is pumped out.
The middle part of the impeller 2 is provided with an impeller shaft sleeve 22, the impeller shaft sleeve 22 is arranged on the impeller shaft 1, and the impeller shaft 1 drags to synchronously rotate. The impeller 2 is arranged in the guide seats 3, and in the axial direction, the impeller 2 is positioned and rotatably supported by the guide seats 3 of two adjacent stages.
Specifically, the impeller 2 stretches into the flow guiding seat 3, the impeller 2 is provided with an impeller top plate, the inner end surface of the impeller top plate is provided with blades 21, the inlet end of the impeller 2 is provided with an impeller bottom plate 23, the impeller bottom plate 23 is integrally connected with the lower end surfaces of the blades 21, and the impeller top plate, the impeller bottom plate 23, the blades 21 and the impeller shaft sleeve 22 jointly enclose a fluid flow guiding channel.
The impeller bearing ring 24 extends from the lower end surface of the bottom of the impeller bottom plate 23, and correspondingly, the impeller bearing seat 31 matched with the annular bearing ring extends from the guide seat 3.
When the deep-well pump works, such as in a water environment of a pump with water as fluid, the water is filled in a pump body and flows into the space between the impeller bearing ring 24 and the impeller bearing seat 31, when the impeller 2 rotates at a high speed, the water is thrown into the outer ring between the impeller bearing ring 24 and the impeller bearing seat 31 under the centrifugal action of the rotation of the impeller 2, the high-pressure water filled between the impeller bearing ring 24 and the impeller bearing seat 31 forms a layer of rotating water film, and when the impeller 2 rotates, the water filled between the impeller bearing ring 24 and the impeller bearing seat 31 is balanced under the stress of the water, and then forms a water bearing structure under the water extrusion, so that the impeller 2 is radially supported in the rotating process.
As shown in fig. 3, which is an exploded view of the support ring on the impeller bearing housing and its mounting structure.
Preferably, the guide seat 3 comprises a guide seat upper cavity 3-1 and a guide seat lower cavity 3-2, and the impeller bearing seat 31 is positioned on the guide seat upper cavity 3-1. When the deep well pump works, fluid is pumped in through a fluid inlet in the middle of the lower cavity 3-2 of the diversion seat, is conveyed by the impeller 2 and the diversion body 4, and is pumped out through a fluid outlet of the upper cavity 3-1 of the diversion seat. It can be understood that the impeller 2 pumps fluid through the diversion channel, and the impeller bottom plate 23 is integrally arranged on the impeller, so that the height of the upper end face of the outer ring of the impeller bottom plate 23 should not be lower than the height of the fluid inlet, the impeller 2 is guaranteed to guide the fluid into the diversion seat 3 completely, and the fluid is prevented from impacting the outside of the diversion seat 3, so that energy loss is avoided.
The impeller bearing seat 31 includes a guide seat upper support hole 310 and a support ring 311 falling into the guide seat upper support hole, the guide seat upper support hole 320 is a stepped hole, the support ring 32 includes an annular lateral portion 3111, and an inner ring of the annular lateral portion 3111 extends out of the annular sleeve 3112.
The annular transverse portion 3111 is integrally formed in a stepped hole structure of the supporting hole 310 on the guide base, and an impeller bearing seat 31 supporting the impeller bearing ring 24 is enclosed between the annular sleeve 3112 and an inner wall of the supporting hole 310 on the guide base.
Preferably, the support ring 311 is a stainless steel support ring. The outer ring of the support ring 311, that is, the outer ring of the annular sleeve 3112 and the inner ring of the impeller bearing ring 24 are in clearance fit, and stability of the long-term support structure of the impeller 2 is improved by the support ring 311 made of stainless steel.
For a deep well pump with a large flow rate, the centrifugal force to which the impeller 2 is subjected during rotation increases as the flow rate becomes larger, and thus, it is necessary to provide sufficient radial support for the impeller 2 to ensure the balance of the impeller 2 during rotation.
Further, a plurality of pressurizing passages 25 penetrating the thickness direction of the impeller bearing ring 24 are provided, the inner sides of the pressurizing passages 25 are communicated with the flow guiding passages of the impeller 2, and the outer sides of the pressurizing passages 25 are opposite to the impeller bearing seat 31.
Before the deep-well pump works, after the water is filled in the deep-well pump, the filled water flows into the impeller bearing seat 31 in advance through the pressurizing channel 25, so that a water ring supported by fluid water is formed in the impeller bearing seat 31 and the impeller bearing seat 24, and when the impeller 2 rotates, water flow thrown out by the impeller 2 is continuously pressed into the pressurizing channel 25, so that the impeller bearing seat 31 and the water bearing in the impeller bearing seat 24 provide larger radial supporting force, and the supporting requirement of the impeller under large flow is met.
In this case, in a specific embodiment, between two adjacent stages of guide seats 3, the impeller shaft sleeve 22 extends into the guide seat 3 of the previous stage and is supported by the guide body 4, the guide body 4 is provided with an impeller supporting hole 41, the impeller shaft sleeve 22 falls into the impeller supporting hole 41, during the water pumping process of the impeller 2, water is filled into the impeller supporting hole 41, and due to the centrifugal effect of high-speed rotation of the impeller 2, the water pressure provides radial support for the impeller shaft sleeve 22, and the impeller shaft sleeve 22 forms a second water bearing structure in the impeller supporting hole 41.
The first water bearing structure is formed between the impeller bottom plate 23 and the impeller shaft sleeve 22 and the second water bearing structure is formed between the impeller shaft sleeve 22 and the impeller shaft sleeve 22, and the two positions simultaneously provide radial support for the impeller 2, so that the radial balance capacity of the impeller 2 in the working process of a large-flow pump body is improved, and the stability of the deep well pump in the working process is improved.
Further, in the process of pumping out fluid in the pump body, the impeller is axially extruded, the impeller 2 and the flow guiding seat 4 are made of plastic materials, friction loss between the impeller shaft sleeve 22 and the impeller supporting hole 41 is increased due to axial acting force, a first friction plate 42 is integrally formed at the bottom of the impeller supporting hole 41 in the flow guiding body 4, a second friction plate 26 is mounted at the bottom of the impeller shaft sleeve 22, and the abrasion resistance between the impeller and the flow guiding seat is improved due to rotational contact between the first friction plate 42 and the second friction plate 26.
Preferably, the first friction plate 42 is a ceramic plate and the second friction plate 26 is an alloy friction plate.
In the impeller flow guiding structure of the deep well pump provided by the embodiment, the impeller bottom plate 23 is integrally formed at the bottoms of the impeller blades 21, and in the working process of the impeller 2, the impeller 2 drives the impeller bottom plate 23 to synchronously rotate, and fluid flows into the flow guiding seat 3 through the flow guiding channel inside the impeller 2. For radial force applied to the impeller during high-speed rotation, an impeller bearing ring 24 extends out of an impeller bottom plate 23, and an impeller bearing seat 31 structure is formed by integrally integrating a stainless steel support ring in the radial force by utilizing a support hole on a guide seat on the guide seat 3.
The high-pressure fluid is filled between the impeller bearing ring 24 and the impeller bearing seat 31 by using the high-pressure fluid in the deep-well pump operation, so that a first water bearing is formed, and radial support for high-speed rotation of the impeller is provided.
Meanwhile, by utilizing the guide body 4 in the guide seat 3 of the upper stage of the impeller 2, the impeller supporting hole 41 is formed in the guide body 4, and in the high-speed rotation process between the impeller shaft sleeve 22 and the impeller supporting hole 41, a second water bearing is formed by filling high-pressure fluid, and the radial supporting capacity of the impeller under the high-speed working condition is improved by two water bearings at the shaft end and the impeller end of the impeller, so that the working stability of the high-flow deep well pump is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111584052.4A CN114790998B (en) | 2021-12-22 | 2021-12-22 | Deep well pump and impeller support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111584052.4A CN114790998B (en) | 2021-12-22 | 2021-12-22 | Deep well pump and impeller support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114790998A CN114790998A (en) | 2022-07-26 |
| CN114790998B true CN114790998B (en) | 2024-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111584052.4A Active CN114790998B (en) | 2021-12-22 | 2021-12-22 | Deep well pump and impeller support structure |
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| Country | Link |
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| CN (1) | CN114790998B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082984A1 (en) * | 2022-10-19 | 2024-04-25 | 钱江集团温岭正峰动力有限公司 | Deep-well pump and flow guide structure thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837990A (en) * | 2022-06-07 | 2022-08-02 | 浙江凯博瑞汽车零部件有限公司 | Deep well pump and impeller transmission structure |
| CN217539088U (en) * | 2022-06-07 | 2022-10-04 | 叶静亮 | Deep well pump and friction ring wear-resistant structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214660925U (en) * | 2021-02-04 | 2021-11-09 | 钱江集团温岭正峰动力有限公司 | Centrifugal pump |
| CN214499541U (en) * | 2021-02-04 | 2021-10-26 | 温岭正峰数字机电科技有限公司 | Dynamic sealing structure for centrifugal pump |
| CN113279968B (en) * | 2021-06-23 | 2024-11-19 | 温岭正峰数字机电科技有限公司 | An impeller pump |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837990A (en) * | 2022-06-07 | 2022-08-02 | 浙江凯博瑞汽车零部件有限公司 | Deep well pump and impeller transmission structure |
| CN217539088U (en) * | 2022-06-07 | 2022-10-04 | 叶静亮 | Deep well pump and friction ring wear-resistant structure |
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| Publication number | Publication date |
|---|---|
| CN114790998A (en) | 2022-07-26 |
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