CN107747546B - High-lift down-suction self-cooling submersible electric pump - Google Patents
High-lift down-suction self-cooling submersible electric pump Download PDFInfo
- Publication number
- CN107747546B CN107747546B CN201711188131.7A CN201711188131A CN107747546B CN 107747546 B CN107747546 B CN 107747546B CN 201711188131 A CN201711188131 A CN 201711188131A CN 107747546 B CN107747546 B CN 107747546B
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- Prior art keywords
- motor
- water
- guide cylinder
- electric pump
- submersible electric
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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
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
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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
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
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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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
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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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention particularly relates to a high-lift down-suction self-cooling submersible electric pump, which solves the problems that the submersible pump cannot pump surface water, cannot perform high-lift operation and is easy to damage due to the influence of the position of a water inlet on the conventional submersible electric pump. A guide cylinder is arranged below the motor, and a grid-shaped water inlet hole is formed in the side wall of the guide cylinder; the lower output shaft of the motor is sleeved with a thrust bearing and a balance sleeve, an axial flow impeller is arranged in the balance sleeve, a downdraft impeller is arranged on the lower output shaft of the motor, a water guide cylinder is arranged outside the side wall of the motor, a water filling port is formed in the side wall of the water guide cylinder, and an outtake guide shell is arranged between a water outlet of the downdraft impeller and the water guide cylinder. The invention realizes the requirement of high-lift operation of the submersible electric pump, improves the cooling effect of the motor and the thrust bearing, further prolongs the service life of the submersible electric pump, is not limited by the height of the water level during pumping operation, and ensures the normal operation of the submersible electric pump.
Description
Technical Field
The invention relates to a submersible electric pump for a well, in particular to a high-lift down-suction self-cooling type submersible electric pump.
Background
The existing well submersible electric pump mainly comprises a motor and a submersible pump, wherein the motor is arranged at the lower part, the submersible pump is arranged at the upper part, a water inlet is arranged between the motor and the submersible pump (the connection part of the motor and the submersible pump), and the water level can not be submerged in the water inlet and the submersible pump can not work due to the fact that the water level of some regions is obviously reduced due to excessive underground water exploitation in recent years; when high-lift operation is required, the volume of the electric motor is larger, so that the water inlet of the submersible electric pump is higher and cannot work even limited by the water level; meanwhile, the high-lift electric pump has large axial pressure, the temperature rise of the thrust bearing is high, the lubricating performance is poor, and the thrust bearing is easy to damage.
Disclosure of Invention
The invention provides a high-lift down-suction self-cooling submersible electric pump, which aims to solve the problems that the submersible pump cannot pump surface water, cannot perform high-lift operation and is easy to damage due to the influence of the position of a water inlet on the conventional submersible electric pump.
The invention is realized by adopting the following technical scheme: the high-lift down-suction self-cooling type submersible electric pump comprises a motor and a submersible pump, wherein a guide cylinder communicated with the motor is arranged below the motor, and a grid-shaped water inlet hole is formed in the side wall of the guide cylinder; the lower output shaft of the motor is sleeved with a thrust bearing and a balance sleeve which are sequentially arranged in the motor from top to bottom and are in clearance fit with the lower output shaft, the balance sleeve is spherically hinged with the thrust bearing, an axial-flow impeller fixed on the lower output shaft is arranged in the balance sleeve, a downdraft impeller positioned between the motor and the guide cylinder is arranged on the lower output shaft of the motor, a water guide cylinder connected with the submersible pump and the guide cylinder is arranged outside the side wall of the motor, a water filling port corresponding to the position of a water inlet of the motor is formed in the side wall of the water guide cylinder, and an outtake guide shell is arranged between a water outlet of the downdraft impeller and.
When the submersible pump works, the high-lift down-suction self-cooled submersible electric pump is placed in underground water, the guide cylinder is always in the water, the motor is started, the down-suction impeller is driven to enable water to enter the water guide cylinder through the water outlet guide shell until the water inlet joint of the submersible pump, and then the submersible pump pumps the water out; meanwhile, water is injected into the motor through the water injection port, the water in the motor is stirred under the action of the axial-flow impeller, and the internal temperature of the motor is cooled; the setting of water guide tube has further improved the cooling effect to the motor, balanced sleeve pipe adopts the loop configuration simultaneously, thrust bearing's lifting surface area has been increaseed, the balance performance obtains further promotion, output shaft clearance fit under thrust bearing and the motor, water in the motor improves rivers through axial-flow impeller, form the water film, thrust bearing has further been protected, it has the unable dry surface water of taking out of immersible pump to have overcome current submerged motor pump and has influenced by water inlet position, can't carry out the problem that high-lift operation and charge pump are fragile.
The submersible electric pump has reasonable and reliable structural design, realizes the requirement of high-lift operation of the submersible electric pump due to the arrangement of the guide cylinder and the downdraft impeller at the bottom, improves the cooling effect of the motor and the thrust bearing, further prolongs the service life of the submersible electric pump, ensures the normal operation of the submersible electric pump because the pumping operation is not limited by the height of the water level, and has the advantages of simple structure, convenient processing and low cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: the water-saving type water-saving pump comprises a motor 1, a submersible pump 2, a guide cylinder 3, a grid-shaped water inlet hole 4, a lower output shaft 5, a thrust bearing 6, a balance sleeve 7, an axial-flow impeller 8, a downdraft impeller 9, a water guide cylinder 10, a water injection port 11 and an outtake guide shell 12.
Detailed Description
The high-lift down-suction self-cooling type submersible electric pump comprises a motor 1 and a submersible pump 2, wherein a guide cylinder 3 communicated with the motor 1 is arranged below the motor 1, and a grid-shaped water inlet hole 4 is formed in the side wall of the guide cylinder 3; the lower output shaft 5 of the motor 1 is sleeved with a thrust bearing 6 and a balance sleeve 7 which are sequentially arranged in the motor 1 from top to bottom and are in clearance fit with the lower output shaft 5, the balance sleeve 7 is in spherical hinge joint with the thrust bearing 6, an axial flow impeller 8 fixed on the lower output shaft 5 is arranged in the balance sleeve 7, a downdraft impeller 9 positioned between the motor 1 and the guide cylinder 3 is arranged on the lower output shaft 5 of the motor 1, a water guide cylinder 10 connected with the submersible pump 2 and the guide cylinder 3 is arranged outside the side wall of the motor 1, a water filling port 11 corresponding to the water inlet position of the motor 1 is formed in the side wall of the water guide cylinder 10, and an outgoing water guide shell 12 is arranged between the water outlet of the downdraft impeller 9 and.
Claims (1)
1. The utility model provides a inhale self-cooling submerged motor pump under high-lift, includes motor (1) and immersible pump (2), its characterized in that: a guide cylinder (3) communicated with the motor (1) is arranged below the motor, and a grid-shaped water inlet hole (4) is formed in the side wall of the guide cylinder (3); a thrust bearing (6) and a balance sleeve (7) which are sequentially arranged in the motor (1) from top to bottom and are in clearance fit with the lower output shaft (5) are sleeved on the lower output shaft (5) of the motor (1), the balance sleeve (7) is in spherical hinge connection with the thrust bearing (6), an axial flow impeller (8) fixed on a lower output shaft (5) is arranged in the balance sleeve (7), a downdraft impeller (9) located between the motor (1) and the guide cylinder (3) is arranged on the lower output shaft (5) of the motor (1), a water guide cylinder (10) connected with the submersible pump (2) and the guide cylinder (3) is arranged outside the side wall of the motor (1), a water filling port (11) corresponding to the position of a water inlet of the motor (1) is formed in the side wall of the water guide cylinder (10), and an external water outlet guide shell (12) is arranged between a water outlet of the downdraft impeller (9) and the water guide cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711188131.7A CN107747546B (en) | 2017-11-24 | 2017-11-24 | High-lift down-suction self-cooling submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711188131.7A CN107747546B (en) | 2017-11-24 | 2017-11-24 | High-lift down-suction self-cooling submersible electric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107747546A CN107747546A (en) | 2018-03-02 |
| CN107747546B true CN107747546B (en) | 2020-05-22 |
Family
ID=61251994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711188131.7A Active CN107747546B (en) | 2017-11-24 | 2017-11-24 | High-lift down-suction self-cooling submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107747546B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11808268B2 (en) | 2020-10-19 | 2023-11-07 | Milwaukee Electric Tool Corporation | Stick pump assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681434A (en) * | 2019-01-24 | 2019-04-26 | 滨特尔(上海)投资有限公司 | A kind of water-cooled energy-saving silent pump |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB546223A (en) * | 1941-05-05 | 1942-07-02 | Hayward Tyler & Co Ltd | Improvements in or relating to submersible pumps |
| CN201636067U (en) * | 2010-04-26 | 2010-11-17 | 佳木斯大学 | Axial force balancing device for ultra-deep-well submersible pump |
| CN203604239U (en) * | 2013-11-29 | 2014-05-21 | 大连深蓝泵业有限公司 | Low-temperature vertical type immersed pump axial force balance mechanism |
| CN206448972U (en) * | 2017-02-15 | 2017-08-29 | 天津赛鸥泵业有限公司 | A kind of bottom single impeller Downdraught submersible electric pump |
| CN207420894U (en) * | 2017-11-24 | 2018-05-29 | 山西晋海制泵科技有限公司 | High-lift lower suction self-cooled submersible pump |
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2017
- 2017-11-24 CN CN201711188131.7A patent/CN107747546B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11808268B2 (en) | 2020-10-19 | 2023-11-07 | Milwaukee Electric Tool Corporation | Stick pump assembly |
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| Publication number | Publication date |
|---|---|
| CN107747546A (en) | 2018-03-02 |
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