CN107044428B - High-efficiency energy-saving multistage flow dissolved air pump - Google Patents
High-efficiency energy-saving multistage flow dissolved air pump Download PDFInfo
- Publication number
- CN107044428B CN107044428B CN201710478067.XA CN201710478067A CN107044428B CN 107044428 B CN107044428 B CN 107044428B CN 201710478067 A CN201710478067 A CN 201710478067A CN 107044428 B CN107044428 B CN 107044428B
- Authority
- CN
- China
- Prior art keywords
- pump body
- arc
- interstage
- hole
- cavity
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims abstract description 100
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000010992 reflux Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000010865 sewage Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- 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
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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 a high-efficiency energy-saving multistage flow dissolved air pump which comprises a base, a bottom plate, an inlet pump body, at least one interstage pump body, an outlet pump body and a motor, wherein the bottom plate, the inlet pump body, the at least one interstage pump body, the outlet pump body and the motor are arranged on the base, the inlet pump body, the interstage pump body and the outlet pump body are respectively and sequentially arranged on the bottom plate, impellers are respectively arranged in the inlet pump body and the outlet pump body, and the impellers are connected with an output shaft of the motor. The high-efficiency energy-saving multistage flow dissolved air pump adopts the designed dissolved air pump, the secondary or multistage full mixing of gas and liquid is generated in the process of establishing pressure in the inlet pump body to reach saturation, a plurality of interstage pump bodies are designed, multistage reflux mixing of gas and liquid is realized through the flow channels of the interstage pump bodies, the inhaled air is cut into small bubbles for many times, the small bubbles reaching 30 mu m after cutting are realized, and the low energy consumption is realized in the operation process, so that secondary pollution is avoided.
Description
Technical Field
The invention relates to the field of chemical mechanical products, is suitable for thick oil sewage treatment, and in particular relates to a high-efficiency energy-saving multistage flow dissolved air pump.
Background
At present, a solution air pump is needed in the thick oil sewage treatment process, namely, a high-lift water pump is used for providing high pressure to enter the solution air pump, and meanwhile, an air compressor is used for pressing air into the solution air pump, so that the air is dissolved in water under a larger pressure. After the water dissolved in the air passes through the releaser, the pressure suddenly drops, the gas originally dissolved in the water body is separated from the water body to form a large number of tiny bubbles, and for the treatment of thick oil sewage, the gas-dissolved water generated by the current dissolved air pump cannot be completely mixed to reach a saturated state, and the energy consumption is high in the use process.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to overcome the problems in the prior art, the high-efficiency energy-saving multistage flow dissolved air pump is provided, the design structure is reasonable, the saturation of multistage mixed gas and liquid can be realized, and the purposes of saving energy consumption and reducing pollution are effectively realized.
The technical scheme adopted for solving the technical problems is as follows: the efficient energy-saving multistage flow dissolved air pump comprises a base, a bottom plate, an inlet pump body, at least one interstage pump body, an outlet pump body and a motor, wherein the bottom plate, the inlet pump body, the interstage pump body, the outlet pump body and the motor are arranged on the base, the inlet pump body, the interstage pump body and the outlet pump body are respectively and sequentially arranged on the bottom plate, impellers are respectively arranged in the inlet pump body and the outlet pump body, the impellers are connected with an output shaft of the motor,
the top end face of the inlet pump body is connected with a feeding flange interface for feeding liquid, the feeding flange interface is communicated with the inner cavity of the inlet pump body, the side wall of the feeding flange interface is connected with an air inlet interface for air inlet, the air inlet interface is provided with a control angle valve, the front end face of the inlet pump body is provided with a first circular notch, the outlet pump body is connected with a liquid outlet flange interface for discharging liquid,
the center of the interstage pump body is provided with a shaft hole which is used for penetrating the output shaft of the motor, the front end surface of the interstage pump body is provided with a round convex block which is outwards protruded and is in clamping fit with the first round notch, the rear end surface of the interstage pump body is provided with a round concave cavity which corresponds to the round convex block, the cavity of the interstage pump body is internally provided with a flow guide division plate which is in a clockwise flow guide direction, the interstage pump body divides the cavity of the interstage pump body into a first cavity and a second cavity through the flow guide division plate, the volume of the first cavity is smaller than that of the second cavity, the round convex block is provided with a first waist groove, a second waist groove, a third waist groove and a fourth waist groove which are distributed in a round annular shape by taking the shaft center as the shaft center, the front end opening to the tail end opening of the first waist groove, the second waist groove, the third waist groove and the fourth waist groove are in a diffusion structure from small gradually increasing, the tail parts of the first waist groove, the second waist groove, the third waist groove and the fourth waist groove are respectively provided with a first liquid inlet hole, a second liquid inlet hole, a third liquid inlet hole and a fourth liquid inlet hole, the first liquid inlet hole, the second liquid inlet hole, the third liquid inlet hole and the fourth liquid inlet hole respectively occupy 1/4 of the first waist groove, the second waist groove, the third waist groove and the fourth waist groove, the first liquid inlet hole and the second liquid inlet hole are respectively communicated with a first cavity, the third liquid inlet hole and the fourth liquid inlet hole are respectively communicated with a second cavity, the central near end of the circular cavity is respectively provided with a first arc liquid outlet hole and a second arc liquid outlet hole, the first arc liquid outlet hole is smaller than the second arc liquid outlet hole, the central far end of the circular cavity is respectively provided with a third arc reflow hole and a fourth arc reflow hole, the first cavity is communicated with the first arc liquid outlet hole, the third arc reflow hole and the fourth arc reflow hole, the second cavity is communicated with the second arc liquid outlet hole, the first arc-shaped liquid outlet hole and the second arc-shaped liquid outlet hole are respectively communicated with the outlet pump, the third arc-shaped reflux hole and the fourth arc-shaped reflux hole are respectively communicated with the inlet pump,
the radial direction of the inlet pump body, the interstage pump body and the outlet pump body is fastened and fixed through bolts.
In order to facilitate assembly, a positioning mounting pin is connected to the bottom end face of the interstage pump body.
In order to achieve the purpose of diversion mixing, an arc-shaped diversion plate is arranged in a first cavity of the interstage pump body, three arc-shaped diversion plates are arranged in a second cavity of the interstage pump body, and the diversion direction of the arc-shaped diversion plates is the same as that of the diversion partition plate.
The number of the interstage pump bodies is three, and the first interstage pump body.
In order to adapt to different places, a movable adjusting bolt is connected between the base and the bottom plate.
The efficient energy-saving multistage flow dissolved air pump has the beneficial effects that by adopting the designed dissolved air pump, gas-liquid secondary or multistage full mixing is generated to be saturated in the process of establishing pressure in the inlet pump body, a plurality of interstage pump bodies are designed, multistage reflux mixing of gas and liquid is realized through the flow channels of the interstage pump bodies, the inhaled air is cut into small bubbles for many times, the small bubbles reaching 30 mu m after cutting are realized, and the low energy consumption is realized in the operation process, so that secondary pollution is avoided.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of the construction of the inter-stage pump body of FIG. 1;
FIG. 3 is a front view of the inter-stage pump body of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 5 is a rear view of the inter-stage pump body of fig. 2.
The hydraulic pump includes a base, a bottom plate, 3 inlet pumps, 31 inlet flange interfaces, 32 inlet ports, 33 control angle valves, 4 interstage pumps, 41 shaft holes, 42 circular bosses, 42-1 first waist slots, 42-11 first liquid inlets, 42-21 second liquid inlets, 42-31 third liquid inlets, 42-41 fourth liquid inlets, 42-2 second waist slots, 42-3 third waist slots, 42-4 fourth waist slots, 43 circular cavities, 43-1 first arc liquid outlets, 43-2 second arc liquid outlets, 43-3 third arc liquid outlets, 43-4 fourth arc liquid outlets, 44 arc liquid separators, 45 first chambers, 46 second chambers, 47 positioning pins, 48 arc liquid deflectors, 5 outlet ports, 51 flange interfaces, 6 motors, 7 movable adjusting bolts.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
The efficient energy-saving multistage flow dissolved air pump shown in fig. 1 comprises a base 1, a bottom plate 2 is installed and connected on the base 1, a movable adjusting bolt 7 is connected between the base 1 and the bottom plate 2, a motor 6 is fixedly installed on the base 2, an inlet pump body 3, three interstage pump bodies 4 and an outlet pump body 5 are respectively installed on the bottom plate 1 in sequence, the inlet pump body 3, the interstage pump body 4 and the outlet pump body 5 are radially fastened and fixed through long bolts, impellers are respectively installed in the inlet pump body 3 and the outlet pump body 5, the impellers are connected with an output shaft of the motor 6, a feeding flange interface 31 for feeding liquid is connected on the top end face of the inlet pump body 3, the feeding flange interface 31 is communicated with an inner cavity of the inlet pump body 3, an air inlet interface 32 for feeding air is connected on the side wall of the feeding flange interface 31, a control angle valve 33 is installed on the air inlet interface 32, a first circular notch is formed in the front end face of the inlet pump body 3, and a liquid outlet flange interface 51 for discharging liquid is connected on the outlet pump body 5.
As shown in fig. 2-5, the center of the interstage pump body 4 is provided with a shaft hole 41 for penetrating through an output shaft of a motor, the bottom end face of the interstage pump body 4 is connected with a positioning mounting pin 47, the front end face of the interstage pump body 4 is provided with a round convex block 42 which is outwards protruded and is in embedded fit with a first round notch, the rear end face of the interstage pump body 4 is provided with a round concave cavity 43 corresponding to the round convex block 42, the cavity of the interstage pump body 4 is internally provided with a guide division plate 44 which is used for guiding flow in sequence, the interstage pump body 4 divides the cavity of the interstage pump body 4 into a first cavity 45 and a second cavity 46 through the guide division plate 44, the volume of the first cavity 45 is smaller than that of the second cavity 46, the first cavity 45 of the interstage pump body 4 is internally provided with an arc-shaped guide plate 48, three arc-shaped guide plates 48 are arranged in the second chamber 45 of the interstage pump body 4, the guide direction of the arc-shaped guide plates 48 is the same as that of the guide partition plate 44, a first waist groove 42-1, a second waist groove 42-2, a third waist groove 42-3 and a fourth waist groove 42-4 are distributed on the round convex block 42 in a round annular shape by taking the axle center as the axle center, the front port to the tail port of the first waist groove 42-1, the second waist groove 42-2, the third waist groove 42-3 and the fourth waist groove 42-4 are in a diffusion structure from small to large gradually, the tail parts of the first waist groove 42-1, the second waist groove 42-2, the third waist groove 42-3 and the fourth waist groove 42-4 are respectively provided with a first liquid inlet hole 42-11, a second liquid inlet hole 42-21, a third liquid inlet hole 42-31 and a fourth liquid inlet hole 42-41, a first liquid inlet hole 42-11, a second liquid inlet hole 42-21, the third liquid inlet 42-31 and the fourth liquid inlet 42-41 respectively occupy 1/4 of the first waist groove 42-1, the second waist groove 42-2, the third waist groove 42-3 and the fourth waist groove 42-4, the first liquid inlet 42-11 and the second liquid inlet 42-21 are respectively communicated with the first cavity 45, the third liquid inlet 42-31 and the fourth liquid inlet 42-41 are respectively communicated with the second cavity 46, the first arc-shaped liquid outlet 43-1 and the second arc-shaped liquid outlet 43-2 are respectively formed in the central near end of the circular cavity 43, the first arc-shaped liquid outlet 43-1 is smaller than the second arc-shaped liquid outlet 43-2, the third arc-shaped reflow hole 43-3 and the fourth arc-shaped reflow hole 43-4 are respectively formed in the central far end of the circular cavity 43, the first cavity 45 is communicated with the first arc-shaped liquid outlet 43-1, the third arc-3 and the fourth arc-shaped reflow hole 43-4, the second cavity 46 is communicated with the second arc-shaped liquid outlet 43-2, and the third arc-shaped reflow hole 43-3 and the fourth arc-4 are respectively communicated with the second arc-shaped liquid outlet 43-2 and the arc-shaped liquid outlet 43-4.
The invention relates to a high-efficiency energy-saving multistage flow dissolved air pump, which utilizes an impeller with a special structure to suck feed liquid and gas into an inlet pump body 3 from a feed flange interface 31 and an air inlet interface 32 respectively, generates gas-liquid two-stage or multistage full mixing and saturation in the process of establishing pressure in the inlet pump body 3, cuts the sucked air into small bubbles for many times by the multistage impeller rotating at high speed, and instantly dissolves the small bubbles reaching 30 mu m after cutting into reflux liquid in a high-pressure environment in the pump, the mixed liquid passes through an interstage pump body 4 with a special design flow channel, the mixed liquid flows into a first liquid inlet 42-11, a second liquid inlet 42-21, a third liquid inlet 42-31 and a fourth liquid inlet 42-41 from a first waist 42-1, a second waist 42-2, a third waist 42-3 and a fourth waist 42-4 of the interstage pump body 4, the mixed liquid of the first liquid inlet hole 42-11 and the second liquid inlet hole 42-21 enters the first chamber 45, part of the mixed liquid in the first chamber 45 flows back into the backflow liquid through the third arc backflow hole 43-3 and the fourth arc backflow hole 43-4 in a uniform acceleration mode, the other part of the mixed liquid in the first chamber 45 is conveyed to the next-stage impeller suction port through the first arc liquid outlet hole 43-1 for diversion circulation, the mixed liquid of the third liquid inlet hole 42-31 and the fourth liquid inlet hole 42-41 enters the second chamber 46, the mixed liquid in the second chamber 46 is conveyed to the next-stage impeller suction port for diversion circulation, the feeding flange interface 31 flows to the negative pressure surface from the pressure surface, bubbles adsorbed at the impeller inlet are quickly dispersed, so that the mixed liquid and new liquid suction are conveyed to the next-stage impeller suction port, the design is circulated in this way, no air source device is added, and secondary energy consumption and pollution are not added.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (5)
1. An efficient energy-saving multistage flow solution air pump is characterized in that: comprises a base (1), a bottom plate (2), an inlet pump body (3), at least one interstage pump body (4), an outlet pump body (5) and a motor (6) which are arranged and connected on the base (1), wherein the motor (6) is fixedly arranged on the base (1), the inlet pump body (3), the interstage pump body (4) and the outlet pump body (5) are respectively and sequentially arranged on the bottom plate (2), impellers are respectively arranged in the inlet pump body (3) and the outlet pump body (5), the impellers are connected with an output shaft of the motor (6),
the top end face of the inlet pump body (3) is connected with a feeding flange interface (31) for feeding liquid, the feeding flange interface (31) is communicated with the inner cavity of the inlet pump body (3), the side wall of the feeding flange interface (31) is connected with an air inlet interface (32) for feeding air, the air inlet interface (32) is provided with a control angle valve (33), the front end face of the inlet pump body (3) is provided with a first circular notch, the outlet pump body (5) is connected with a liquid outlet flange interface (51) for discharging liquid,
the center of the interstage pump body (4) is provided with a shaft hole (41) for penetrating through an output shaft of the motor, the front end surface of the interstage pump body (4) is provided with a round convex block (42) which protrudes outwards and is in clamping fit with the first round notch, the rear end surface of the interstage pump body is provided with a round concave cavity (43) corresponding to the round convex block (42), the cavity of the interstage pump body (4) is internally provided with a flow guide division plate (44) which guides flow in time, the interstage pump body (4) divides the cavity of the interstage pump body (4) into a first cavity (45) and a second cavity (46) through the flow guide division plate (44), the volume of the first cavity (45) is smaller than that of the second cavity (46), the round convex block (42) is provided with a first waist groove (42-1), a second waist groove (42-2), a third waist groove (42-3) and a fourth waist groove (42-4) which are distributed in a circular shape by taking the axle center as a circle, the front port to the tail port of the first waist groove (42-1), the second waist groove (42-2), the third waist groove (42-3) and the fourth waist groove (42-4) are of a diffusion structure which gradually becomes larger from small to large, and the tail parts of the first waist groove (42-1), the second waist groove (42-2), the third waist groove (42-3) and the fourth waist groove (42-4) are respectively provided with a first liquid inlet hole (42-11), the second liquid inlet hole (42-21), the third liquid inlet hole (42-31) and the fourth liquid inlet hole (42-41), the first liquid inlet hole (42-11) and the second liquid inlet hole (42-21) are respectively communicated with the first cavity (45), the third liquid inlet hole (42-31) and the fourth liquid inlet hole (42-41) are respectively communicated with the second cavity (46), the first arc-shaped liquid outlet hole (43-1) and the second arc-shaped liquid outlet hole (43-2) are respectively arranged at the central near end of the circular concave cavity (43), the third arc-shaped backflow hole (43-3) and the fourth arc-shaped backflow hole (43-4) are respectively arranged at the central far end of the circular concave cavity (43), the first cavity (45) is communicated with the first arc-shaped liquid outlet hole (43-1), the third arc-backflow hole (43-3) and the fourth arc-shaped backflow hole (43-4), the second cavity (46) is communicated with the second arc-shaped liquid outlet hole (43-2), the first arc-shaped liquid outlet hole (43-1) and the second arc-shaped backflow hole (43-3) are respectively communicated with the third arc-shaped liquid outlet hole (43-4),
the radial direction of the inlet pump body (3), the interstage pump body (4) and the outlet pump body (5) is fastened and fixed through bolts.
2. The efficient and energy-saving multi-stage flow dissolved air pump as claimed in claim 1, wherein: the bottom end face of the interstage pump body (4) is connected with a positioning mounting pin (47).
3. The efficient and energy-saving multi-stage flow dissolved air pump as claimed in claim 1, wherein: an arc-shaped guide plate (48) is arranged in the first chamber (45) of the interstage pump body (4), three arc-shaped guide plates (48) are arranged in the second chamber (46) of the interstage pump body (4), and the guide direction of the arc-shaped guide plates (48) is the same as that of the guide partition plate (44).
4. The efficient and energy-saving multi-stage flow dissolved air pump as claimed in claim 1, wherein: the number of the interstage pump bodies (4) is three.
5. The efficient and energy-saving multi-stage flow dissolved air pump as claimed in claim 1, wherein: a movable adjusting bolt (7) is connected between the base (1) and the bottom plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710478067.XA CN107044428B (en) | 2017-06-22 | 2017-06-22 | High-efficiency energy-saving multistage flow dissolved air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710478067.XA CN107044428B (en) | 2017-06-22 | 2017-06-22 | High-efficiency energy-saving multistage flow dissolved air pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044428A CN107044428A (en) | 2017-08-15 |
| CN107044428B true CN107044428B (en) | 2023-12-05 |
Family
ID=59547035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710478067.XA Active CN107044428B (en) | 2017-06-22 | 2017-06-22 | High-efficiency energy-saving multistage flow dissolved air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044428B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215141B (en) * | 2021-11-02 | 2022-11-08 | 浙江建投环保工程有限公司 | Water intake device for dissolved air pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623590A (en) * | 1979-08-06 | 1981-03-05 | No Yamamoto | Multistage centrifugal pump |
| CN2036447U (en) * | 1988-08-12 | 1989-04-26 | 孙明山 | Gas-liquid mixing pump |
| CN2554392Y (en) * | 2002-05-15 | 2003-06-04 | 汪作美 | Self-priming vertical multi-stage centrifugal pump |
| CN101078408A (en) * | 2006-05-24 | 2007-11-28 | 松下电工株式会社 | Pump and liquid supply system |
| RU77651U1 (en) * | 2008-07-09 | 2008-10-27 | Владимир Дмитриевич Анохин | CENTRIFUGAL-VORTEX STEP OF SUBMERSIBLE PUMP |
| CN206845487U (en) * | 2017-06-22 | 2018-01-05 | 靖江市浩鑫电气机械配件有限公司 | Highly effective energy-conserving multi-stage stream air dissolved pump |
-
2017
- 2017-06-22 CN CN201710478067.XA patent/CN107044428B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623590A (en) * | 1979-08-06 | 1981-03-05 | No Yamamoto | Multistage centrifugal pump |
| CN2036447U (en) * | 1988-08-12 | 1989-04-26 | 孙明山 | Gas-liquid mixing pump |
| CN2554392Y (en) * | 2002-05-15 | 2003-06-04 | 汪作美 | Self-priming vertical multi-stage centrifugal pump |
| CN101078408A (en) * | 2006-05-24 | 2007-11-28 | 松下电工株式会社 | Pump and liquid supply system |
| RU77651U1 (en) * | 2008-07-09 | 2008-10-27 | Владимир Дмитриевич Анохин | CENTRIFUGAL-VORTEX STEP OF SUBMERSIBLE PUMP |
| CN206845487U (en) * | 2017-06-22 | 2018-01-05 | 靖江市浩鑫电气机械配件有限公司 | Highly effective energy-conserving multi-stage stream air dissolved pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107044428A (en) | 2017-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112879308B (en) | Multistage centrifugal pump | |
| CN107044428B (en) | High-efficiency energy-saving multistage flow dissolved air pump | |
| CN202348688U (en) | Jet type self-priming centrifugal pump | |
| CN110657098A (en) | Radial series high-pressure vortex pump | |
| CN201241825Y (en) | High pressure and high flow vane type oil pump with porous oil inlet and outlet | |
| CN109296532B (en) | Electronic air pump with rotary vane | |
| CN102322424B (en) | Jet self-sucking centrifugal water pump | |
| CN109356849B (en) | Liquid piston air compressor | |
| CN206845487U (en) | Highly effective energy-conserving multi-stage stream air dissolved pump | |
| CN2744859Y (en) | Guide vane type multistage self-suction centrifugal pump with strong gas-liquid separation function | |
| CN112096617B (en) | Vertical self-priming pump | |
| CN113586458B (en) | Self-priming multi-stage composite shielding pump | |
| CN203892187U (en) | Vertical Roots dry vacuum pump | |
| CN203641034U (en) | Submerged double-suction sewage pump structure | |
| CN109185108B (en) | Diaphragm air pump motor and cylinder seat combined structure thereof | |
| CN111120396A (en) | Impeller partition work doing isolation sealing device and flow dividing method | |
| CN219911256U (en) | High-efficiency energy-saving self-priming pump | |
| CN210660719U (en) | Novel impeller for water pump | |
| CN215860823U (en) | Self-suction type multistage composite shield pump and combined type self-suction type multistage composite shield pump | |
| CN203297145U (en) | Double-suction first-stage impeller for multi-stage pump | |
| CN212318292U (en) | Energy-saving efficient low-noise screw vacuum pump | |
| WO2023279689A1 (en) | Direct current permanent magnet self-priming composite shielding pump | |
| CN115788978B (en) | High-efficient water jetting air extraction vacuum apparatus | |
| CN215486611U (en) | Horizontal split axial split first-stage double-suction seven-stage centrifugal pump | |
| CN215566625U (en) | Miniature water ring vacuum pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |