CN114233642B - Water pump capable of discharging bubbles in fluid - Google Patents
Water pump capable of discharging bubbles in fluid Download PDFInfo
- Publication number
- CN114233642B CN114233642B CN202111313847.1A CN202111313847A CN114233642B CN 114233642 B CN114233642 B CN 114233642B CN 202111313847 A CN202111313847 A CN 202111313847A CN 114233642 B CN114233642 B CN 114233642B
- Authority
- CN
- China
- Prior art keywords
- stator
- impeller
- pump body
- water pump
- pump
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000012530 fluid Substances 0.000 title claims abstract description 48
- 238000007599 discharging Methods 0.000 title claims abstract description 10
- 230000008021 deposition Effects 0.000 claims description 17
- 238000005192 partition Methods 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 2
- 239000012535 impurity Substances 0.000 description 8
- 238000002955 isolation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing 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
- F04D13/0606—Canned motor 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
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
Abstract
The utility model discloses a water pump capable of discharging bubbles in a fluid, which belongs to the field of intelligent water pumps and comprises a pump body, wherein an impeller is arranged in the pump body, a plurality of arc-shaped clapboards are arranged in the impeller, a spiral flow passage for passing the fluid is formed between two adjacent arc-shaped clapboards, an air groove is arranged in each arc-shaped clapboard, and an exhaust structure comprises an exhaust passage communicated with the air groove; the exhaust passage can be used for exhausting gas in the water pump, so that bubbles are prevented from entering the structures of the rotor and the stator, cavitation is reduced, and the problems that in the prior art, bubbles in the water pump fluid can cause cavitation to the inner structure of the water pump, so that the service life of the water pump is reduced, and larger noise is generated during operation are solved.
Description
Technical Field
The utility model relates to an intelligent water pump, in particular to a water pump capable of discharging bubbles in a fluid.
Background
Bubbles often exist in the fluid of the water pump, the bubbles can flow along with the fluid, cavitation is easy to generate when the bubbles move to the fine structure of the water pump, the service life of the water pump is reduced, or the water pump generates larger noise during operation.
For example, "a micro pump capable of exhausting", disclosed in chinese patent literature, with publication number CN201920933407.8, includes a pump head, a pump housing, a vent plug, an isolation chamber, a connecting shaft, a rotor, a stator motor, and a PCBA control board; the pump head and the isolation cavity are covered on the opening of the pump shell; the isolation cavity is arranged in the pump shell and the pump head, and separates the pump shell and the cavity in the pump head into a pump cavity and a pump waterproof cavity; the rotor is arranged in the pump cavity; the connecting shaft penetrates through the rotor, and two ends of the connecting shaft are fixedly connected with the pump head and the isolation cavity respectively; the stator motor is arranged in the pump waterproof cavity and used for driving a rotor in the pump cavity to rotate; the PCBA control board is arranged in the pump waterproof cavity and is electrically connected with the stator motor; the pump head is provided with an exhaust port, and the exhaust plug is matched with the exhaust port. In the utility model, the exhaust port is arranged on the pump head, which is favorable for exhausting air in the water pump and reducing the damage of the water pump in the anhydrous state; however, the pump has the defects that the gas in the pump body cannot be collected at the exhaust port, if the introduced fluid is provided with bubbles, the bubbles cannot be discharged out of the pump body, cavitation can still be generated on a fine structure in the pump body, the service life of the water pump is reduced, and large noise is generated during use.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, cavitation is generated on a structure in a water pump by bubbles in the fluid of the water pump, so that the service life of the water pump is reduced, and larger noise is generated during operation.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model discloses a water pump capable of discharging bubbles in a fluid, which comprises a pump body, wherein the pump body comprises a pump body shell, the front end of the pump body shell is provided with a water inlet, the rear end of the pump body shell is provided with a water outlet, the front part of the pump body is provided with an exhaust structure, a stator and a rotor are arranged in the pump body shell, a stator front cover and a stator rear cover are respectively arranged at two ends of the stator, a guide shell is arranged at the front side of the stator front cover, an impeller mounting groove is arranged in the guide shell, an impeller is arranged in the impeller mounting groove, a plurality of arc-shaped clapboards are arranged in the impeller, a spiral flow passage for passing fluid is formed between two adjacent arc-shaped clapboards, an air groove is formed in the arc-shaped clapboards, and the exhaust structure comprises an exhaust passage communicated with the air groove.
The exhaust channel can be used for exhausting gas in the water pump, so that bubbles are prevented from entering the structures of the rotor and the stator, and cavitation is reduced; because this scheme, the fluid that passes through in the water pump all needs to pass through the impeller, and the fluid can receive the pressure of arc baffle when passing through the impeller, consequently, in spiral runner, the fluid can be close to wherein the arc baffle of one side to make bubble concentrate in the arc baffle department of opposite side, can be with the bubble introduction that concentrates in arc baffle one side to exhaust passage through the air pocket in the arc baffle, thereby discharge water pump.
Preferably, one side of the arc-shaped partition plate facing the center of the curvature circle is the inner side, one side of the arc-shaped partition plate facing away from the center of the curvature circle is the outer side, the air groove is separated from the spiral flow passage by a waterproof and breathable film, and the waterproof and breathable film is positioned on the inner side of the arc-shaped partition plate; in the process that the impeller rotates to provide power for fluid, the outer side of the arc-shaped partition plate is extruded with the fluid, so that the fluid can be close to the outer side of the arc-shaped partition plate, bubbles can be concentrated to the inner side of the adjacent arc-shaped partition plate, and the bubbles concentrated to the inner side of the arc-shaped partition plate can enter the air grooves through the waterproof and breathable films which are arranged on the inner side of the arc-shaped partition plate and are connected with the air grooves.
Preferably, the pump body comprises a pump body front cover, an annular exhaust channel mounting part is arranged on the pump body front cover, the exhaust channel comprises an exhaust channel outer section and an exhaust channel inner section, the impeller comprises a bottom plate and a cover plate, the arc-shaped partition plate is positioned on the bottom plate, the cover plate is provided with the exhaust channel inner section, the exhaust channel inner section is annular and is adaptively mounted in the exhaust channel mounting part, the exhaust channel outer section is mounted on the exhaust channel mounting part, the exhaust channel outer section is connected with an exhaust pipe, and an air pump is arranged in the exhaust pipe; the inner section of the exhaust channel is positioned on the cover plate, so that the impeller rotates and the inner section of the exhaust channel also rotates, and the annular exhaust channel mounting part can ensure that the annular channel can still keep a sealing state while the impeller rotates; the air pump can enable the exhaust passage to be in a negative pressure state, so that air bubbles in the impeller can enter the air groove and the exhaust passage.
Preferably, the rotating shaft of the rotor is arranged in an adaptive manner with the impeller, and one end of the rotating shaft of the rotor, which is positioned at the water inlet, is provided with a rotating blade; the rotating blades can rotate synchronously with the impeller, and large bubbles in the fluid are broken into small bubbles before the fluid enters the impeller, so that gas close to the arc-shaped partition plate can enter the gas tank more easily through the waterproof breathable film.
Preferably, an inner runner is arranged on the inner side of the stator, an outer runner is arranged on the outer side of the stator, a first outlet communicated with the outer runner is arranged on the outer side of the guide shell, and a second outlet communicated with the inner runner is arranged on one side, facing the front cover of the stator, of the guide shell; the fluid diversion shell divides the fluid into an outer flow channel and an inner flow channel, the outer flow channel passes through the outer side of the stator to radiate heat generated by the stator, the inner flow channel passes between the rotor and the stator to radiate heat of the stator and the rotor, and the overhigh temperature of the stator and the rotor in the operation process of the water pump is avoided.
Preferably, an annular flow limiting block is arranged between the stator front cover and the water pump rotor, and a flow limiting groove communicated with the inner runner is arranged on the flow limiting block; the flow limiting groove is used for reducing the flow of the fluid in the inner flow passage, and because the inner flow passage is positioned at the gap between the rotor and the stator, the sectional area of the inner flow passage is smaller, the flow velocity is faster, the flow velocity of the fluid in the inner flow passage can be reduced by limiting the flow of the flow limiting groove, and more friction heat is avoided between the fluid and the stator rotor.
Preferably, a deposition cavity is further arranged between the stator front cover and the guide shell, the deposition cavity is communicated with a second outlet, and the second outlet is a round hole coaxial with the rotor; due to the spiral flow passage in the impeller, the fluid in the guide shell can rotate to form rotational flow, so that impurities in the fluid can be converged at the middle part of the guide shell, namely at the second outlet and enter the deposition cavity, the effect of filtering the impurities is achieved, the situation that the impurities enter the inner flow passage or the outer flow passage to rub with the stator or the rotor is avoided, and the impurities in the deposition cavity can be cleaned through regular maintenance.
Therefore, the utility model has the following beneficial effects: (1) Bubbles in the fluid can be discharged before the fluid passes through the fine structure in the water pump, so that cavitation is reduced; (2) The stator and the rotor can be radiated, so that the overhigh temperature is avoided; (3) Impurities in the fluid can be gathered in the deposition cavity, so that the impurity amount entering the inner runner and the outer runner is reduced.
Drawings
Fig. 1 is a schematic cross-sectional view of the present utility model.
FIG. 2 is an enlarged schematic view of a portion of the exhaust structure of the present utility model.
Fig. 3 is a schematic view of an internal structure of the inducer and impeller of the present utility model.
Fig. 4 is a cross-sectional view of an arcuate diaphragm of an impeller of the present utility model.
In the figure: 1. the air exhaust structure 2, the stator front cover 3, the guide shell 4, the impeller mounting groove 5, the impeller 6, the arc-shaped partition plate 7, the spiral flow passage 8, the air groove 9, the inner side 10, the outer side 11, the water-proof air permeable membrane 12, the air exhaust passage mounting part 13 the device comprises an exhaust passage outer section 14, an exhaust passage inner section 15, a bottom plate 16, a cover plate 17, rotating blades 18, a first outlet 19, a second outlet 20, an impeller water inlet passage 21, a water inlet 22, a flow limiting block 23, a flow limiting groove 24 and a deposition cavity.
Detailed Description
The utility model is further described below with reference to the drawings and detailed description.
In the embodiment shown in fig. 1-4, a water pump capable of discharging bubbles in a fluid comprises a pump body, the pump body comprises a pump body shell, the front part of the pump body is provided with an exhaust structure 1, a stator and a rotor are arranged in the pump body shell, two ends of the stator are respectively provided with a stator front cover 2 and a stator rear cover, the front side of the stator front cover is provided with a guide shell 3, the guide shell is internally provided with an impeller mounting groove 4, an impeller 5 is arranged in the impeller mounting groove, the impeller is disc-shaped, a plurality of arc-shaped clapboards 6 are arranged in the impeller, a spiral flow channel 7 for passing fluid is formed between two adjacent arc-shaped clapboards, an air groove 8 is arranged in the arc-shaped clapboards, the exhaust structure comprises an exhaust channel communicated with the air groove, one side of the arc-shaped clapboards facing the center of a curvature circle of the arc-shaped clapboards is an inner side 9, the side facing away from the center of the curvature circle of the impeller is an outer side 10, the air groove is separated from the spiral flow channel by a water-proof breathable film 11, the water-proof breathable film is positioned on the inner side of the arc-shaped partition board, the pump body comprises a pump body front cover, the pump body front cover is provided with an annular exhaust channel mounting part 12, the exhaust channel comprises an exhaust channel outer section 13 and an exhaust channel inner section 14, the impeller comprises a bottom plate 15 and a cover plate 16, the arc-shaped partition board is positioned on the bottom plate, the cover plate is provided with an exhaust channel inner section, the exhaust channel inner section is annular and is adaptively mounted in the exhaust channel mounting part, the exhaust channel outer section is mounted on the exhaust channel mounting part, the exhaust channel outer section is connected with an exhaust pipe, and an air pump is arranged in the exhaust pipe; the rotating shaft of the rotor is arranged in an adaptive manner with the impeller, and one end of the rotating shaft of the rotor, which is positioned at the water inlet, is provided with a rotating blade 17; the outer side of the stator is provided with an outer runner, the inner side of the stator is provided with an inner runner, the inner runner is positioned between the rotor and the stator, the outer side of the guide shell is provided with a first outlet 18 communicated with the outer runner, and one side of the guide shell, facing the front cover of the stator, is provided with a second outlet 19 communicated with the inner runner; an impeller water inlet channel 20 is arranged on one side of the impeller, and the impeller water inlet channel is communicated with the spiral flow channel and a water inlet 21 on the diversion shell; an annular flow limiting block 22 is arranged between the stator front cover and the water pump rotor, and a flow limiting groove 23 communicated with the inner flow passage is arranged on the flow limiting block; a deposition cavity 24 is further arranged between the stator front cover and the guide shell, the deposition cavity is communicated with a second outlet, and the second outlet is a round hole coaxial with the rotor; the stator front cover is provided with a front cover deposition groove on one side facing the flow guiding shell, the flow guiding shell is provided with a flow guiding shell deposition groove on one side facing the stator front cover, and the front cover deposition groove and the flow guiding shell deposition groove form the deposition cavity.
In the working process of the water pump, fluid enters the water pump from the water inlet and then enters the impeller of the diversion shell, in the rotating process of the impeller, the impeller supplies power to the fluid and throws the fluid out to the side surface of the impeller along the spiral flow channel, the fluid leaving the impeller forms rotational flow in the diversion shell, the fluid in the diversion shell mainly flows to the outer flow channel through the first outlet, and a small amount of fluid flows to the inner flow channel through the second outlet, so that heat dissipation is carried out on the stator and the rotor; the small amount of impurities in the water pump are converged at the middle part of the guide shell under the action of the rotational flow and flow to the second outlet along with the fluid, and the impurities are finally deposited in the deposition cavity and cannot enter the inner flow channel or the outer flow channel because the fluid in the deposition cavity is in a non-flowing state.
If the entering fluid contains bubbles, the bubbles can enter the impeller together with the fluid, the fluid in the impeller can be extruded with the outer side of the arc-shaped partition plate when flowing in the spiral flow passage, the bubbles can be close to the inner side of the arc-shaped partition plate and enter the air groove through the water-proof air-permeable membrane, and the gas in the air groove enters the exhaust pipe through the exhaust passage, so that the water pump is discharged.
Claims (6)
1. The utility model provides a can discharge pump of bubble in fluid, its characterized in that, includes the pump body, the pump body includes pump body shell, and pump body shell's front end is equipped with the water inlet, pump body shell's rear end is equipped with the delivery port, the front portion of pump body is equipped with exhaust structure, be equipped with stator and rotor in the pump body shell, stator protecgulum and stator hou gai are installed respectively to the both ends of stator, the shell is installed to the front side of stator protecgulum, be equipped with the impeller mounting groove in the shell, install the impeller in the impeller mounting groove, be equipped with a plurality of arc baffle in the impeller, form between two adjacent arc baffles and be used for passing through fluidic spiral runner, be equipped with the air groove in the arc baffle, exhaust structure include with the exhaust channel of air groove intercommunication, the pump body includes pump body protecgulum, be equipped with annular exhaust channel installation department on the pump body protecgulum, the exhaust channel includes exhaust channel outer section and exhaust channel inner section, the impeller includes bottom plate and apron, the arc baffle is located the bottom plate, be equipped with exhaust channel inner section on the apron, the exhaust channel inner section is annular and install in the exhaust channel installation department, exhaust channel outer section is equipped with exhaust pump outer section.
2. The water pump capable of discharging bubbles in a fluid according to claim 1, wherein the side of the arc-shaped partition plate facing the center of the curvature circle is the inner side, the side facing away from the center of the curvature circle is the outer side, the air groove and the spiral flow passage are separated by a water-proof and air-permeable membrane, and the water-proof and air-permeable membrane is positioned on the inner side of the arc-shaped partition plate.
3. A water pump capable of discharging bubbles in a fluid according to claim 1, wherein the rotary shaft of the rotor is fitted with the impeller, and a rotary blade is provided at one end of the rotary shaft of the rotor at the water inlet.
4. The water pump of claim 1, wherein the inner side of the stator is provided with an inner flow passage, the outer side of the stator is provided with an outer flow passage, the outer side of the shell is provided with a first outlet communicated with the outer flow passage, and the side of the shell facing the front cover of the stator is provided with a second outlet communicated with the inner flow passage.
5. The water pump capable of discharging bubbles in a fluid according to claim 4, wherein an annular flow limiting block is installed between the stator front cover and the water pump rotor, and a flow limiting groove communicated with the inner flow passage is arranged on the flow limiting block.
6. A water pump capable of discharging bubbles in a fluid according to claim 4 or 5, wherein a deposition chamber is further provided between the stator front cover and the diversion shell, the deposition chamber is communicated with a second outlet, and the second outlet is a circular hole coaxial with the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111313847.1A CN114233642B (en) | 2021-11-08 | 2021-11-08 | Water pump capable of discharging bubbles in fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111313847.1A CN114233642B (en) | 2021-11-08 | 2021-11-08 | Water pump capable of discharging bubbles in fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114233642A CN114233642A (en) | 2022-03-25 |
| CN114233642B true CN114233642B (en) | 2024-03-15 |
Family
ID=80748782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111313847.1A Active CN114233642B (en) | 2021-11-08 | 2021-11-08 | Water pump capable of discharging bubbles in fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233642B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4921400A (en) * | 1987-07-06 | 1990-05-01 | A. Ahlstrom Corporation | Pump and a method of separating gas by such from a fluid to be pumped |
| CN104533816A (en) * | 2014-11-12 | 2015-04-22 | 中国科学院工程热物理研究所 | Radial diffuser testing device and testing method of centrifugal compressor |
| CN105604956A (en) * | 2016-01-27 | 2016-05-25 | 大连罗斯泵业有限公司 | Combined type efficient self-sucking pump |
| CN205446147U (en) * | 2016-02-25 | 2016-08-10 | 贵州鑫鑫曙光科技有限公司 | Reposition of redundant personnel centrifugal pump |
| CN214247694U (en) * | 2020-12-29 | 2021-09-21 | 河北祥迈泵业有限公司 | Horizontal foam pump with continuous exhaust system |
-
2021
- 2021-11-08 CN CN202111313847.1A patent/CN114233642B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4921400A (en) * | 1987-07-06 | 1990-05-01 | A. Ahlstrom Corporation | Pump and a method of separating gas by such from a fluid to be pumped |
| CN104533816A (en) * | 2014-11-12 | 2015-04-22 | 中国科学院工程热物理研究所 | Radial diffuser testing device and testing method of centrifugal compressor |
| CN105604956A (en) * | 2016-01-27 | 2016-05-25 | 大连罗斯泵业有限公司 | Combined type efficient self-sucking pump |
| CN205446147U (en) * | 2016-02-25 | 2016-08-10 | 贵州鑫鑫曙光科技有限公司 | Reposition of redundant personnel centrifugal pump |
| CN214247694U (en) * | 2020-12-29 | 2021-09-21 | 河北祥迈泵业有限公司 | Horizontal foam pump with continuous exhaust system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114233642A (en) | 2022-03-25 |
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| GR01 | Patent grant |