CN108644128B - Sand-proof type jet submersible pump - Google Patents
Sand-proof type jet submersible pump Download PDFInfo
- Publication number
- CN108644128B CN108644128B CN201810783917.1A CN201810783917A CN108644128B CN 108644128 B CN108644128 B CN 108644128B CN 201810783917 A CN201810783917 A CN 201810783917A CN 108644128 B CN108644128 B CN 108644128B
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- China
- Prior art keywords
- motor
- guide vane
- pump body
- pump
- sand
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Links
- 239000004576 sand Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000002347 injection Methods 0.000 claims abstract description 13
- 239000007924 injection Substances 0.000 claims abstract description 13
- 230000002265 prevention Effects 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 238000000926 separation method Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims 3
- 241001330002 Bambuseae Species 0.000 claims 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 3
- 239000011425 bamboo Substances 0.000 claims 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 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
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water 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
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/14—Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type
-
- 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
- F04D13/0606—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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- 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
- F04D29/66—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
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a sand-proof type jet submersible pump, and belongs to the technical field of machinery. It has solved the easy problem of sand oil leak of advancing of current immersible pump. The sand control type jet submersible pump comprises a motor part, a pump body and a base, wherein the motor part consists of a motor shaft, a motor upper end cover, a motor lower end cover, a motor barrel and a cylinder cover, the base is arranged at the bottom of the pump body, the motor shaft of the motor stretches into the pump body, a water inlet and a water outlet are formed in the pump body, an oil cavity is formed between the cylinder cover and the motor lower end cover, the pump body is connected with the motor barrel in the motor part through a connecting body, a mechanical oil seal is arranged between the cylinder cover and the motor lower end cover in the oil cavity, a mechanical sealing piece is arranged at the position of the connecting body on the motor shaft, the motor barrel downwards extends to form a sand separating chamber among the motor barrel, the connecting body and the cylinder cover, and an injection mechanism consisting of an injection pipe, an impeller component and a guide vane component is arranged in the pump body. The invention has the effects of high lift, low noise and sand prevention.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a submersible pump, in particular to a sand-prevention type jet submersible pump.
Background
The submerged pump is an important device for deep well water lifting, and when in use, the whole unit is submerged to work, and the submerged pump is used for extracting underground water to the ground surface, and is the fields of domestic water, mine rescue, industrial cooling, farmland irrigation, seawater lifting, ship load adjustment and the like. The principle of the submersible pump is that after the pump is started, the impeller rotates at a high speed, liquid in the impeller rotates along with the blades, the liquid flies away from the impeller to be ejected outwards under the action of centrifugal force, the ejected liquid gradually slows down in the diffusion chamber of the pump shell, the pressure gradually increases, and then the liquid flows out of the pump outlet and the discharge pipe.
When the traditional submersible pump is used for the occasion that the medium contains a large amount of silt, impurities or small grits in the medium water inevitably enter the pump body to cause abrasion to the mechanical seal and the motor shaft, and the service life of the pump is influenced. In order to solve the technical problem, a person skilled in the art carries out various improvements on the technical problem, for example, a sand prevention device is usually arranged on a motor at present, the structure of the sand prevention device is composed of a framework oil seal and a sand throwing ring, the sand throwing ring is used for preventing sand in a medium from entering a bearing, the sand throwing ring rotates along with a motor shaft when the motor runs, small sand in the medium is thrown out by the sand throwing ring under the action of centrifugal force and is far away from the motor shaft, and the small sand is prevented from penetrating into the bearing at the shaft end along the axial direction, so that the bearing is protected.
The sand control type submersible pump with the structure has the advantages that in the long-term use process, the mechanical seal close to the pump body is worn to different degrees, so that small gravel is inevitably infiltrated upwards, the mechanical seal close to the motor part is influenced, oil of the mechanical seal part is seriously leaked, and the water in the pump body is polluted; and because the operating environment of the submersible pump is complex, when the environmental temperature difference is overlarge, the pressure change in the mechanical seal oil chamber in the traditional submersible pump is larger, and the problem of oil seepage is also caused.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a submersible pump with high lift, low noise and sand prevention effect.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a sand control type injection immersible pump, includes motor portion, the pump body and base, motor portion constitute by motor shaft, motor upper end cover, motor lower extreme cover, motor barrel and cylinder cap, the base install in the bottom of pump body, the motor shaft of motor stretches into in the pump body, the pump body on have water inlet and delivery port, cylinder cap and motor lower extreme cover between form an oil pocket, the pump body install in motor portion's below, and be connected through the connector between the motor barrel in pump body and the motor portion, its characterized in that, the oil pocket in be provided with mechanical oil seal between cylinder cap and the motor lower extreme cover, the motor shaft on be located connector department and be provided with mechanical seal spare, motor barrel downwardly extending make between motor barrel, connector and the cylinder cap form a silt separation chamber, the pump body in be provided with the injection mechanism that comprises injection pipe, impeller subassembly and stator subassembly.
In the sand control type jet submersible pump, a partition wall for installing a jet pipe is arranged at a position, close to a water inlet, in the pump body, and the partition wall and the pump body are integrally formed, an impeller assembly consists of an upper impeller and a lower impeller which are of the same size, the upper impeller and the lower impeller are sequentially and fixedly connected to the end part of a motor shaft at intervals, the guide vane assembly consists of a guide vane fixing seat, a fixing seat cover plate, a guide vane body and a guide vane cover plate, the guide vane cover plate is fixedly connected with the upper end of the jet pipe, the guide vane body is connected to the top of the guide vane cover plate, the lower impeller is positioned between the guide vane body and the guide vane cover plate, the upper top of the guide vane body is provided with a fixing seat cover plate, the upper end of the guide vane fixing seat is fixedly connected to the connecting body, and the lower end of the guide vane is positioned above the fixing seat cover plate.
In the sand prevention type jet submersible pump, a blow-down valve for discharging oil dirt or silt is arranged on the side wall of the motor cylinder at the silt separation chamber.
In the sand-preventing type jet submersible pump, the upper end part of the connecting body is provided with a sand-preventing sleeve which is integrated with the connecting body and extends upwards. The sand control sleeve has a certain filtering effect on coarse sand.
In the sand control type jet submersible pump, the water outlet is positioned at the side part of the pump body.
In the sand control type jet submersible pump, the water inlet is positioned at the bottom of the pump body, and the water inlet net cover is arranged between the base and the pump body.
In the sand-prevention type jet submersible pump, the motor lower end cover and the motor barrel are integrally formed.
Compared with the prior art, the sand control type jet submersible pump has the following advantages:
1. the jet mechanism in the jet pump is applied to the submersible pump, and the submersible pump is positioned in water, so that the problem of high noise of the jet pump mechanism is solved, the lift of the submersible pump is improved, and the performance of the submersible pump is comparable to that of a QD series multistage submersible pump by adopting a multistage impeller, but the number of stages is less than that of the impeller of the QD series;
2. the mud-sand separation chamber is additionally arranged, the mechanical oil seal above is separated from the mechanical sealing element below, so that oil leakage occurs when the mechanical oil seal above is worn, oil can flow into the mud-sand separation chamber, the pollution to water caused by the fact that the oil directly enters the pump cavity is avoided, the mechanical sealing element below is damaged, mud sand can enter the mud-sand separation chamber, the influence on the mechanical oil seal above cannot be directly caused, and the service life is prolonged;
3. the outer wall of the mud-sand separating chamber is provided with a check bolt or a blow-down valve, so that the condition in the mud-sand separating chamber can be checked or cleared.
Drawings
FIG. 1 is a schematic cross-sectional view of the present sand control jet submersible pump.
In the figure, 1, a motor part; 2. a pump body; 3. a base; 4. a motor shaft; 5. an upper end cover of the motor; 6. a motor lower end cover; 7. a motor barrel; 8. a cylinder head; 9. a water inlet; 10. a water outlet; 11. an oil chamber; 12. a connecting body; 13. mechanical oil seal; 14. a mechanical seal; 15. a mud-sand separation chamber; 16. a jet pipe; 17. partition walls; 18. an upper impeller; 19. a lower impeller; 20. a guide vane fixing seat; 21. a fixed seat cover plate; 22. a guide vane body; 23. a guide vane cover plate; 24. a blow-down valve; 25. a water inlet net cover; 26. sand prevention sleeve.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the sand control type jet submersible pump comprises a motor part 1, a pump body 2 and a base 3, wherein the motor part 1 is composed of a motor shaft 4, a motor upper end cover 5, a motor lower end cover 6, a motor cylinder 7 and a cylinder cover 8, the motor lower end cover 6 and the motor cylinder 7 are integrally formed, the base 3 is arranged at the bottom of the pump body 2, the motor shaft 4 of the motor stretches into the pump body 2, a water inlet 9 and a water outlet 10 are formed in the pump body 2, an oil cavity 11 is formed between the cylinder cover 8 and the motor lower end cover 6, the pump body 2 is arranged below the motor part 1, the pump body 2 is connected with the motor cylinder 7 in the motor part 1 through a connecting body 12, a mechanical oil seal 13 is arranged between the cylinder cover 8 and the motor lower end cover 6 in the oil cavity 11, a mechanical sealing piece 14 is arranged at the position of the connecting body 12 on the motor shaft 4, the motor cylinder 7 downwards extends to form a mud sand separation chamber 15 between the motor cylinder 7, a jet mechanism composed of a jet pipe 16, an impeller component and a guide vane component is arranged in the pump body 2, the side wall of the motor cylinder 7 is positioned at the position of the mud separation chamber 15, and is provided with a drain valve 24 for draining oil stain or the pump to be connected with the pump end part of the pump by the pump, and the pump has a pump head pressure of the pump is increased, and the pump pressure can be increased by the pump pressure is increased by the pump suction head of the pump and the pump has a pump pressure of the pump pressure can be pumped down.
Further, a partition wall 17 for installing the injection pipe 16 is arranged at a position, close to the water inlet 9, in the pump body 2 of the sand-prevention type injection submersible pump, the partition wall 17 and the pump body 2 are integrally formed, an impeller assembly consists of an upper impeller 18 and a lower impeller 19 which are of the same size, the upper impeller 18 and the lower impeller 19 are fixedly connected to the end part of the motor shaft 4 at intervals in sequence, the guide vane assembly consists of a guide vane fixing seat 20, a fixing seat cover plate 21, a guide vane body 22 and a guide vane cover plate 23, the guide vane cover plate 23 is fixedly connected with the upper end of the injection pipe 16, the guide vane body 22 is connected to the top of the guide vane cover plate 23, the lower impeller 19 is positioned between the guide vane body 22 and the guide vane cover plate 23, the upper top of the guide vane body 22 is provided with the fixing seat cover plate 21, the upper end of the guide vane fixing seat 20 is fixedly connected to the connecting body 12, and the lower end of the guide vane assembly is fixedly connected with the fixing seat cover plate 21, and the upper impeller 18 is positioned above the fixing seat cover plate 21.
Further, the water outlet 10 in the sand-proof jet submersible pump is positioned at the side part of the pump body 2, the water inlet 9 is positioned at the bottom of the pump body 2, and the water inlet net cover 25 is arranged between the base 3 and the pump body 2.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although terms such as the motor part 1, the pump body 2, the base 3, the motor shaft 4, the motor upper end cap 5, the motor lower end cap 6, the motor cylinder 7, the cylinder head 8, the water inlet 9, the water outlet 10, the oil chamber 11, the connector 12, the mechanical oil seal 13, the mechanical seal 14, the silt separation chamber 15, the injection pipe 16, the partition wall 17, the upper impeller 18, the lower impeller 19, the vane fixing base 20, the fixing base cover 21, the vane body 22, the vane cover 23, the blow-down valve 24, the water intake screen 25, the sand control cover 26, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (3)
1. The utility model provides a sand control type jet submersible pump, includes motor portion (1), pump body (2) and base (3), motor portion (1) constitute by motor shaft (4), motor upper end cover (5), motor lower end cover (6), motor section of thick bamboo (7) and cylinder cap (8), base (3) install in the bottom of pump body (2), motor shaft (4) of motor stretch into pump body (2), pump body (2) on have water inlet (9) and delivery port (10), cylinder cap (8) and motor lower end cover (6) between form an oil pocket (11), pump body (2) install in motor portion (1) below, and be connected through connector (12) between motor section of thick bamboo (7) in pump body (2) and motor portion (1), characterized in that, cylinder cap (4) on be located connector (12) and be provided with mechanical oil seal (13) between motor lower (6), motor shaft (8) and cylinder cap (4) on be provided with motor seal (14) and extend between section of thick bamboo (7) and cylinder cap (12), the pump body (2) is internally provided with an injection mechanism consisting of an injection pipe (16), an impeller assembly and a guide vane assembly, a partition wall (17) for installing the injection pipe (16) is arranged at a position, close to a water inlet (9), in the pump body (2), the partition wall (17) and the pump body (2) are integrally formed, the impeller assembly consists of an upper impeller (18) and a lower impeller (19) which are the same in size, the upper impeller (18) and the lower impeller (19) are sequentially and fixedly connected to the end part of a motor shaft (4) at intervals, the guide vane assembly consists of a guide vane fixing seat (20), a fixing seat cover plate (21), a guide She Benti (22) and a guide vane cover plate (23), the guide vane cover plate (23) is fixedly connected with the upper end of the injection pipe (16), the guide vane body (22) is connected to the top of the guide vane cover plate (23), the guide vane fixing seat (21) is arranged at the top of the guide vane body (22), the upper end of the guide vane fixing seat (20) is fixedly connected to the upper end part of the guide vane body (12) and the guide vane cover plate (23) is fixedly connected to the upper end part of the guide vane body (21), the side wall of the motor cylinder (7) is provided with a blow-down valve (24) for discharging greasy dirt or silt at the position of the mud-sand separation chamber (15), the upper end part of the connecting body (12) is provided with a sand prevention sleeve (26) which is integrated with the connecting body and extends upwards, and the water outlet (10) is positioned at the side part of the pump body (2).
2. The sand control type jet submersible pump according to claim 1, wherein the water inlet (9) is positioned at the bottom of the pump body (2), and a water inlet net cover (25) is arranged between the base (3) and the pump body (2).
3. The sand control type jet submersible pump as claimed in claim 1, wherein the motor lower end cover (6) and the motor cylinder (7) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783917.1A CN108644128B (en) | 2018-07-17 | 2018-07-17 | Sand-proof type jet submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810783917.1A CN108644128B (en) | 2018-07-17 | 2018-07-17 | Sand-proof type jet submersible pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108644128A CN108644128A (en) | 2018-10-12 |
| CN108644128B true CN108644128B (en) | 2024-02-20 |
Family
ID=63751398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810783917.1A Active CN108644128B (en) | 2018-07-17 | 2018-07-17 | Sand-proof type jet submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644128B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003184778A (en) * | 2001-12-14 | 2003-07-03 | Kawamoto Pump Mfg Co Ltd | Vertical type multi-stage centrifugal pump |
| CN201517509U (en) * | 2009-09-28 | 2010-06-30 | 台州豪贝泵业有限公司 | Multi-stage immersible pump |
| CN202690468U (en) * | 2012-05-19 | 2013-01-23 | 浙江利欧股份有限公司 | Submersible pump with spraying body structure |
| CN202851388U (en) * | 2012-10-11 | 2013-04-03 | 泰州泰丰泵业有限公司 | Flame-proof type submersible sand-draining electric pump for mining |
| CN203670235U (en) * | 2014-01-07 | 2014-06-25 | 台州凌霄泵业有限公司 | Double-impeller submersible pump |
| KR20150075846A (en) * | 2013-12-26 | 2015-07-06 | 디에이치엠(주) | Vertical crush pump for treating an accumulated sludge sediment |
| CN204458384U (en) * | 2015-01-12 | 2015-07-08 | 浙江人民泵业有限公司 | A kind of jet pump |
| CN205744495U (en) * | 2016-06-24 | 2016-11-30 | 台州阳春机电有限公司 | Sand control sewage pump |
| KR101811866B1 (en) * | 2017-04-12 | 2017-12-22 | 주식회사 남일 | a Under-water Pump of lower motor type with mix function |
| CN208546323U (en) * | 2018-07-17 | 2019-02-26 | 浙江乾辰智能科技有限公司 | A kind of sand-proof type injection immersible pump |
-
2018
- 2018-07-17 CN CN201810783917.1A patent/CN108644128B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003184778A (en) * | 2001-12-14 | 2003-07-03 | Kawamoto Pump Mfg Co Ltd | Vertical type multi-stage centrifugal pump |
| CN201517509U (en) * | 2009-09-28 | 2010-06-30 | 台州豪贝泵业有限公司 | Multi-stage immersible pump |
| CN202690468U (en) * | 2012-05-19 | 2013-01-23 | 浙江利欧股份有限公司 | Submersible pump with spraying body structure |
| CN202851388U (en) * | 2012-10-11 | 2013-04-03 | 泰州泰丰泵业有限公司 | Flame-proof type submersible sand-draining electric pump for mining |
| KR20150075846A (en) * | 2013-12-26 | 2015-07-06 | 디에이치엠(주) | Vertical crush pump for treating an accumulated sludge sediment |
| CN203670235U (en) * | 2014-01-07 | 2014-06-25 | 台州凌霄泵业有限公司 | Double-impeller submersible pump |
| CN204458384U (en) * | 2015-01-12 | 2015-07-08 | 浙江人民泵业有限公司 | A kind of jet pump |
| CN205744495U (en) * | 2016-06-24 | 2016-11-30 | 台州阳春机电有限公司 | Sand control sewage pump |
| KR101811866B1 (en) * | 2017-04-12 | 2017-12-22 | 주식회사 남일 | a Under-water Pump of lower motor type with mix function |
| CN208546323U (en) * | 2018-07-17 | 2019-02-26 | 浙江乾辰智能科技有限公司 | A kind of sand-proof type injection immersible pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108644128A (en) | 2018-10-12 |
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