CN112065731B - Motor for sewage pump - Google Patents

Motor for sewage pump Download PDF

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Publication number
CN112065731B
CN112065731B CN202010861596.XA CN202010861596A CN112065731B CN 112065731 B CN112065731 B CN 112065731B CN 202010861596 A CN202010861596 A CN 202010861596A CN 112065731 B CN112065731 B CN 112065731B
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CN
China
Prior art keywords
oil
cavity
motor
shell
heat exchange
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Active
Application number
CN202010861596.XA
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Chinese (zh)
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CN112065731A (en
Inventor
周巍
朱四富
霍宏宇
崔常桂
李学强
高鹏
马林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanyang Pump Qingdao Co ltd
Original Assignee
Nanyang Pump Qingdao Co ltd
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Priority to CN202010861596.XA priority Critical patent/CN112065731B/en
Publication of CN112065731A publication Critical patent/CN112065731A/en
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Publication of CN112065731B publication Critical patent/CN112065731B/en
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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
    • F04D13/0606—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
    • F04D29/58—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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/5866—Cooling at last part of the working fluid in a heat exchanger
    • F04D29/5873—Cooling at last part of the working fluid in a heat exchanger flow schemes and regulation thereto
    • 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
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A motor for a sewage pump relates to the technical field of sewage treatment equipment, and is characterized in that the motor is vertically installed, a rotating shaft faces downwards, an oil shell is sleeved on the outer side of a motor shell, two ends of the oil shell are respectively and hermetically installed with two ends of the motor shell, the rotating shaft of the motor extends into the pump shell from a rear end cover of the pump shell and is fixedly installed with an impeller, a cavity between the oil shell and the motor shell is divided into an upper cavity and a lower cavity, and the upper cavity and the lower cavity are communicated at the upper end of the motor shell; and a sealed heat exchange chamber is formed between the rear end cover and the oil shell, an oil wheel is installed in the heat exchange chamber, an oil inlet of the oil wheel is communicated with the lower end of the descending cavity, and an oil outlet of the oil wheel is communicated with the lower end of the ascending cavity. The invention can be operated after being exposed in the air for a long time.

Description

Motor for sewage pump
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to a motor for a sewage pump.
Background
The sewage pump belongs to one of centrifugal impurity pumps, and has various forms: such as submersible type and dry type, etc., wherein the submersible sewage pump is sunk at the bottom of the sewage pool to pump sewage from a low place to a high place; the motor seal of sewage pump installs the upper end at the pump case, the sewage pump is in the same time immersed in water at the during operation motor, consequently the motor directly dispels the heat in aqueous in the operation, but the direct mount can make the motor expose in the air in the condition such as surface of water shallow layer when the surface of water descends or sewage pump installation, the radiating efficiency that the motor produced for the pump is too slow, can make the motor appear overheated, damage the motor, reduce the life of motor, consequently, current ordinary motor for the sewage pump can not expose for a long time and move in the air.
Disclosure of Invention
In order to solve the problems of the prior art, the invention provides a motor for a sewage pump, which can be exposed in the air for operation for a long time.
The purpose of the invention can be realized by the following technical scheme: a motor for a sewage pump is vertically installed, a rotating shaft faces downwards, an oil shell is sleeved on the outer side of the motor shell, two ends of the oil shell are respectively installed at two ends of the motor shell in a sealing mode, the rotating shaft of the motor extends into the pump shell from a rear end cover of the pump shell and is fixedly installed with an impeller, a cavity between the oil shell and the motor shell is divided into an upper cavity and a lower cavity, and the upper cavity and the lower cavity are communicated at the upper end of the motor shell; and a sealed heat exchange chamber is formed between the rear end cover and the oil shell, an oil wheel is installed in the heat exchange chamber, an oil inlet of the oil wheel is communicated with the lower end of the descending cavity, and an oil outlet of the oil wheel is communicated with the lower end of the ascending cavity.
Preferably, a partition plate perpendicular to the rotating shaft is installed in the heat exchange chamber, an oil cavity is located above the partition plate in the heat exchange chamber, a heat exchange cavity is located below the partition plate, a window is formed in the partition plate and is aligned with the lower end of the descending cavity, the oil tanker is installed on the partition plate, a vertical plate is installed in the oil cavity and separates the window from the oil tanker in separate cavities, an oil inlet of the oil tanker is communicated with the heat exchange cavity, and an oil outlet of the oil tanker is communicated with the oil cavity.
Preferably, the oil tanker sleeve is fixedly installed on the rotating shaft, and the rotating shaft is used as a power shaft of the oil tanker to drive the oil tanker to rotate.
Preferably, a plurality of flanges are arranged on the end face, facing the heat exchange cavity, of the rear end cover.
Preferably, the flanges are circular and are uniformly distributed at equal intervals along the radial direction by taking the rotating shaft as the center. The circular flange can greatly increase the heat exchange area of the cooling oil and the sewage, and improve the heat exchange efficiency.
Preferably, a connecting sleeve is hermetically arranged between the rear end cover and the oil casing, the partition plate is arranged at the sealing position of the connecting sleeve and the partition plate, the oil cavity is arranged between the partition plate and the connecting sleeve, and a heat exchange cavity is arranged between the connecting sleeve and the rear end cover. The connecting sleeve is installed to ensure that the cooling oil has a certain oil storage amount in the motor.
Preferably, at least two isolation ribs are evenly distributed on the outer wall of the motor shell in the circumferential direction, the isolation ribs divide the inner cavity of the oil shell into at least two cavities, and the upper cavity and the lower cavity are circumferentially distributed at intervals.
Preferably, the number of the windows on the partition plate is equal to the number of the descending cavities.
Preferably, the oil casing and the connecting sleeve are provided with oil filling ports, and the side wall of the rear end cover is provided with an oil outlet.
Preferably, an observation window is further arranged on the side wall of the connecting sleeve. The observation window is convenient for maintaining and repairing the inside of the oil cavity.
The principle of the invention is as follows: the cooling oil is preferably low-viscosity cooling oil, and the heat dissipation circulation of the cooling oil in the whole motor is as follows: after the motor is started, the rotating shaft drives the impeller to rotate, the oil wheel also synchronously rotates, the whole cooling oil circularly flows under the driving of the oil wheel, the cooling oil upwards flows to the uppermost end of the motor along the ascending cavity and exchanges heat with heat generated by the operation of a winding of the motor, the cooling oil turns over the upper end of the isolation rib and flows into the descending cavity, the heat exchange is continuously carried out with the heat generated by the operation of the winding of the motor, then the cooling oil flows into the oil cavity and flows into the heat exchange cavity from the window of the partition plate, the cooling oil with the heat conducts the heat to water in the pump shell through the wall and the flange of the rear end cover, so that the heat exchange is completed, and the cooling oil upwards flows into the ascending cavity after being pumped into the oil cavity by the oil wheel; the cooling oil circulates along the motor, so that heat generated by the operation of the motor windings is transmitted to the rear end cover and absorbed by water in the pump shell.
The invention has the advantages that: the invention has simple structure and convenient use, the outer side of the motor is provided with the oil shell, a large amount of low-viscosity cooling oil is filled between the oil shell and the motor shell, the oil cavity and the heat exchange cavity are also filled with the cooling oil, the oil circuit is communicated, and the cooling oil is in heat exchange with sewage at the rear end cover by utilizing the flow of the sewage in the sewage pump in the pumping process, so that the heat generated in the motor is finally taken away by the sewage; therefore, the working condition that the motor is exposed in the air for long-term operation can be met.
Drawings
Fig. 1 is a schematic view of the internal structure of the embodiment of the present invention.
Fig. 2 is a schematic diagram of the structure at a in fig. 1.
Fig. 3 is a schematic view of a radial cross-sectional structure of an oil casing according to an embodiment of the present invention.
Fig. 4 is a schematic top view of a separator according to an embodiment of the present invention.
Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.
Detailed Description
The invention is further illustrated by the following figures and examples.
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
A motor for a sewage pump is vertically installed, a rotating shaft 3 faces downwards, an oil casing 2 is sleeved on the outer side of a motor casing 1, two ends of the oil casing 2 are respectively installed with two ends of the motor casing 1 in a sealing mode, the rotating shaft 3 of the motor extends into the pump casing 4 from a rear end cover 5 of the pump casing 4 and is fixedly installed with an impeller, a cavity between the oil casing 2 and the motor casing 1 is divided into an upper cavity 21 and a lower cavity 22, and the upper cavity 21 is communicated with the lower cavity 22 at the upper end of the motor casing 1; a sealed heat exchange chamber 6 is formed between the rear end cover 5 and the oil casing 2, an oil tanker 7 is mounted on the heat exchange chamber 6, an oil inlet of the oil tanker 7 is communicated with the lower end of the descending cavity 22, and an oil outlet 12 of the oil tanker 7 is communicated with the lower end of the ascending cavity 21. Be full of the coolant oil in oil casing 2 and heat transfer chamber 6, the coolant oil in the oil casing 2 absorbs the heat that electric motor rotor produced, makes the inside cooling of motor, and the coolant oil in the heat transfer chamber 6 produces the heat energy exchange through the sewage in rear end cap 5 and the pump case 4, takes away the heat of coolant oil through the sewage pumping, consequently the coolant oil forms a circulation between oil casing 2 and heat transfer chamber 6: when the oil tanker 7 rotates, cooling oil which completes heat exchange in the heat exchange chamber 6 is cooled and then is pumped to the ascending cavity 21 of the oil casing 2 through the oil tanker 7, the cooling oil in the ascending cavity 21 flows upwards to the upper end of the motor casing 1 to flow downwards to the descending cavity 22 while cooling the motor, and the cooling oil in the descending cavity 22 flows downwards to the heat exchange chamber 6 to be exchanged while cooling the motor.
Further, in this embodiment, a partition plate 8 perpendicular to the rotating shaft 3 is installed in the heat exchange chamber 6, an oil cavity 61 is located above the partition plate 8 in the heat exchange chamber 6, a heat exchange cavity 62 is located below the partition plate 8, a window 81 is provided on the partition plate 8, the window 81 is aligned with the lower end of the descending cavity 22, the tanker 7 is installed on the partition plate 8, the tanker 7 is fixedly installed by being sleeved on the rotating shaft 3, and the rotating shaft 3 is used as a power shaft of the tanker 7 to drive the tanker 7 to rotate; a vertical upright plate 9 is installed in the oil chamber 61, the window 81 is separated from the oil tanker 7 by the upright plate 9, the oil inlet of the oil tanker 7 is communicated with the heat exchange chamber 62, and the oil outlet 12 of the oil tanker 7 is communicated with the oil chamber 61.
Further, in this embodiment, in order to increase the heat exchange efficiency, a plurality of flanges 51 are disposed on an end surface of the rear end cover 5 facing the heat exchange cavity 62, and the flanges 51 are annular and are uniformly distributed at equal intervals along a radial direction with the rotating shaft 3 as a center; the circular flange 51 can greatly increase the heat exchange area between the cooling oil and the sewage, and improve the heat exchange efficiency.
Further, in this embodiment, a connecting sleeve 10 is installed between the rear end cover 5 and the oil casing 2 in a sealing manner, the partition plate 8 is installed at a sealing position between the connecting sleeve 10 and the partition plate 8, the oil chamber 61 is arranged between the partition plate 8 and the connecting sleeve 10, and the heat exchange chamber 62 is arranged between the connecting sleeve 10 and the rear end cover 5. The connecting sleeve 10 is installed to ensure a certain amount of oil storage in the motor.
Further, in this embodiment, 4 isolation ribs 101 are uniformly distributed on the outer wall of the motor casing 1 at the circumference, the isolation ribs 101 divide the inner cavity of the oil casing 2 into 4 chambers, the number of the upper cavities 21 is 2, the number of the lower cavities 22 is 2, the upper cavities 21 and the lower cavities 22 are distributed at intervals, and the number of the windows 81 on the partition plate 8 is equal to the number of the lower cavities 22 and corresponds to one another; in addition, since the windows 81 are distributed on opposite sides of the partition 8, the number of the vertical plates 9 is 4, and each window 81 is separated from the oil tanker 7 to ensure that the cooling oil can complete the circulation.
Further, in the present embodiment, oil filling ports 11 are provided on the walls of the oil casing 2 and the connecting sleeve 10, and an oil outlet 12 is provided on the side wall of the rear end cover 5. An observation window 13 is also arranged on the side wall of the connecting sleeve 10. The observation window 13 facilitates maintenance and repair of the interior of the oil chamber 61.
The principle of the embodiment of the invention is as follows: the cooling oil is preferably low-viscosity cooling oil, and the heat dissipation circulation of the cooling oil in the whole motor is as follows: after the motor is started, the impeller is driven by the rotating shaft 3 to rotate, the oil tanker 7 also synchronously rotates, the whole cooling oil circularly flows under the drive of the oil tanker 7, the cooling oil upwards flows to the uppermost end of the motor along the ascending cavity 21, exchanges heat with heat generated by the operation of a winding of the motor, turns over the upper end of the isolation rib 101, flows into the descending cavity 22, continues exchanging heat with the heat generated by the operation of the winding of the motor, then flows into the oil cavity 61, flows into the heat exchange cavity 62 from the window 81 of the partition plate 8, and conducts the heat to water in the pump shell 4 through the wall of the rear end cover 5 and the flange 51, so that the heat exchange is completed, and then the cooling oil upwards flows into the ascending cavity 21 after being pumped into the oil cavity 61 by the oil tanker 7; the cooling oil circulates along the machine, thereby transferring the heat generated by the operation of the machine windings to the rear end cover 5, where it is absorbed by the water in the pump housing 4.
The embodiment of the invention has the advantages that: the invention has simple structure and convenient use, the layer of oil casing 2 is arranged at the outer side of the motor, a large amount of low-viscosity cooling oil is filled between the oil casing 2 and the motor casing 1, the oil cavity 61 and the heat exchange cavity 62 are also filled with the cooling oil, the oil paths are communicated, and by utilizing the flow of sewage in the sewage pump in the pumping process, the cooling oil is in the sewage at the rear end cover 5 to generate heat exchange, so that the heat generated in the motor is finally taken away by the sewage; therefore, the working condition that the motor is exposed in the air for long-term operation can be met.
The structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the art, and any structural modifications, changes in proportions, or adjustments in size, which do not affect the efficacy and attainment of the same are intended to fall within the scope of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The invention has been described above with reference to preferred embodiments, but the scope of protection of the invention is not limited thereto, and all technical solutions falling within the scope of the claims are within the scope of protection of the invention. Various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict.

Claims (6)

1. The motor for the sewage pump is characterized in that the motor is vertically installed, a rotating shaft (3) faces downwards, an oil shell (2) is sleeved on the outer side of a motor shell (1), two ends of the oil shell (2) are respectively installed at two ends of the motor shell (1) in a sealing mode, the rotating shaft (3) of the motor extends into the pump shell (4) from a rear end cover (5) of the pump shell (4) and is fixedly installed with an impeller, a cavity between the oil shell (2) and the motor shell (1) is divided into an upper cavity (21) and a lower cavity (22), and the upper cavity (21) is communicated with the lower cavity (22) at the upper end of the motor shell (1); a sealed heat exchange chamber (6) is formed between the rear end cover (5) and the oil shell (2), an oil tanker (7) is installed on the heat exchange chamber (6), an oil inlet of the oil tanker (7) is communicated with the lower end of the descending cavity (22), and an oil outlet (12) of the oil tanker (7) is communicated with the lower end of the ascending cavity (21); a partition plate (8) perpendicular to the rotating shaft (3) is installed in the heat exchange chamber (6), an oil cavity (61) is formed in the heat exchange chamber (6) and located above the partition plate (8), a heat exchange cavity (62) is located below the partition plate (8), a window (81) is arranged on the partition plate (8), the window (81) is aligned with the lower end of the descending cavity (22) in a rear mode, the oil tanker (7) is installed on the partition plate (8), a vertical plate (9) is installed in the oil cavity (61), the window (81) is separated from the oil tanker (7) by the vertical plate (9), an oil inlet of the oil tanker (7) is communicated with the heat exchange cavity (62), and an oil outlet (12) of the oil tanker (7) is communicated with the oil cavity (61); the end face, facing the heat exchange cavity (62), of the rear end cover (5) is provided with a plurality of flanges (51); at least two isolation ribs (101) are uniformly distributed on the outer wall of the motor casing (1) in the circumferential direction, the isolation ribs (101) divide the inner cavity of the oil casing (2) into at least two cavities, and the upper cavity (21) and the lower cavity (22) are distributed at intervals in the circumferential direction; the number of windows (81) on the partition (8) is equal to the number of downgoing chambers (22).
2. The electric motor for a sewage pump according to claim 1, wherein the tanker (7) is fixedly mounted on the rotary shaft (3) in a sleeved manner, and the rotary shaft (3) is used as a power shaft of the tanker (7) to drive the tanker (7) to rotate.
3. The motor for the sewage pump according to claim 1, wherein the flange (51) is annular and is uniformly spaced in a radial direction centering on the rotating shaft (3).
4. The motor for the sewage pump according to claim 3, wherein a connecting sleeve (10) is hermetically installed between the rear end cover (5) and the oil casing (2), the partition plate (8) is installed at a sealing position of the connecting sleeve (10) and the partition plate (8), the oil chamber (61) is arranged between the partition plate (8) and the connecting sleeve (10), and a heat exchange chamber (62) is arranged between the connecting sleeve (10) and the rear end cover (5).
5. Motor for a sewage pump according to claim 4, characterized in that an oil filling opening (11) is provided on the wall of the oil casing (2) and the connecting sleeve (10), and an oil outlet (12) is provided on the side wall of the rear end cover (5).
6. Motor for a sewage pump according to claim 5, characterized in that an observation window (13) is further provided on the side wall of the connection sleeve (10).
CN202010861596.XA 2020-08-25 2020-08-25 Motor for sewage pump Active CN112065731B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010861596.XA CN112065731B (en) 2020-08-25 2020-08-25 Motor for sewage pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010861596.XA CN112065731B (en) 2020-08-25 2020-08-25 Motor for sewage pump

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CN112065731A CN112065731A (en) 2020-12-11
CN112065731B true CN112065731B (en) 2022-07-12

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002310088A (en) * 2001-04-09 2002-10-23 Aimu Denki Kogyo Kk Dry type submerged motor pump with cooling water sealed type heat exchanger
CN2916210Y (en) * 2006-04-21 2007-06-27 淮南市华源矿用机电设备厂 Explosion-suppression water-cooled type submersible electric sewage pump for mining
CN103261705A (en) * 2010-08-25 2013-08-21 麦格纳动力系有限公司 Electric water pump with stator cooling
CN204186610U (en) * 2014-10-30 2015-03-04 无锡利欧锡泵制造有限公司 From the dirty pump of cooling Novel submarine
CN204212999U (en) * 2014-10-26 2015-03-18 浙江丰球泵业股份有限公司 Inner eycle forces cooling submersible pump
JP2018059497A (en) * 2016-09-30 2018-04-12 株式会社荏原製作所 Motor pump and drain facility including the same
CN207333222U (en) * 2017-09-14 2018-05-08 浙江人民泵业有限公司 A kind of immersible pump with cooling system
CN211174646U (en) * 2019-11-22 2020-08-04 浙江丰球克瑞泵业有限公司 Internal circulation cooling submersible sewage pump

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6157302B2 (en) * 2013-10-10 2017-07-05 株式会社鶴見製作所 Motor cooling device for vertical electric pump
CN208982367U (en) * 2018-06-01 2019-06-14 崇玮工业股份有限公司 Double-cooling electronic water pump
CN209435018U (en) * 2019-03-19 2019-09-24 上海盘毂动力科技股份有限公司 A kind of cooling system, stator module and motor in axial magnetic field

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002310088A (en) * 2001-04-09 2002-10-23 Aimu Denki Kogyo Kk Dry type submerged motor pump with cooling water sealed type heat exchanger
CN2916210Y (en) * 2006-04-21 2007-06-27 淮南市华源矿用机电设备厂 Explosion-suppression water-cooled type submersible electric sewage pump for mining
CN103261705A (en) * 2010-08-25 2013-08-21 麦格纳动力系有限公司 Electric water pump with stator cooling
CN204212999U (en) * 2014-10-26 2015-03-18 浙江丰球泵业股份有限公司 Inner eycle forces cooling submersible pump
CN204186610U (en) * 2014-10-30 2015-03-04 无锡利欧锡泵制造有限公司 From the dirty pump of cooling Novel submarine
JP2018059497A (en) * 2016-09-30 2018-04-12 株式会社荏原製作所 Motor pump and drain facility including the same
CN207333222U (en) * 2017-09-14 2018-05-08 浙江人民泵业有限公司 A kind of immersible pump with cooling system
CN211174646U (en) * 2019-11-22 2020-08-04 浙江丰球克瑞泵业有限公司 Internal circulation cooling submersible sewage pump

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