CN103244436A - Low-noise electric centrifugal pump - Google Patents
Low-noise electric centrifugal pump Download PDFInfo
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- CN103244436A CN103244436A CN2013102038189A CN201310203818A CN103244436A CN 103244436 A CN103244436 A CN 103244436A CN 2013102038189 A CN2013102038189 A CN 2013102038189A CN 201310203818 A CN201310203818 A CN 201310203818A CN 103244436 A CN103244436 A CN 103244436A
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- centrifugal pump
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Abstract
The invention discloses a low-noise stable horizontal direct-connected electric centrifugal pump which comprises a filter screen (3), a dredging screw (4), a pressure reduction pipe (5), a throttling valve (6), a first bearing cooling containing cavity (7), a condenser motor shell (8), a second bearing cooling containing cavity (9), a connecting pipe (10), a jet pipe (11), a water inlet (16) and a water outlet (17). A traditional air cooling motor type is changed into a water cooling structure, the first bearing cooling containing cavity (7) and the condenser motor shell (8) are used for cooling a motor bearing, a stator and a rotor releasing heat, a formed jet guide device is used for improving stability of the pump running under an off-design condition, so that radiation noise of the centrifugal pump in the running process is effectively reduced, running stability of the centrifugal pump is improved, and the 'quiet' design of a pipeline system is realized.
Description
Technical field
The present invention relates to a kind of electric centrifugal pump, particularly be applied to the electronic centrifugal water pump of low noise that urban water supply and sewerage and cabin are used.
Background technique
Along with the increasingly stringent of environmental standard and the raising gradually of customer requirement, the noise that mechanical movement produces has become a problem demanding prompt solution.Electric centrifugal pump is widely used in fields such as urban water supply and sewerage, cabin, residential quarter pumping plant, factory and the air conditioner water circulatory system, and along with improving constantly of revolution speed, the noise of its generation more and more badly influences resident and workman's physically and mentally healthy and safety in production.The noise of electric centrifugal pump mainly is made of noise of motor and centrifugal pump noise.Noise of motor mainly is electromagnetic noise, mechanical noise and the fan noise that is produced by the motor stator rotor; Mainly to be that when operation produces under off-design behaviour instability such as cavitation, backflow and secondary stream are mobile cause hydrodynamic noise in the pipe-line system to the centrifugal pump noise.Therefore, the operation stability of reduction noise of motor and raising centrifugal pump is the key that realizes whole pipe-line system " calm type " design.
Reducing whole pipe-line system noise in the prior art mostly is that motor noise-reducing and the noise reduction of centrifugal pump own are separately considered, by developing the low noise motor and carrying out the pump optimal design again, thereby reach the purpose of the whole noise reduction of pump assembly, but this change often needs very high development cost.
Summary of the invention
The object of the present invention is to provide a kind of novel electric centrifugal pump, this centrifugal pump can not change original pump performance, not increase the bigger problem of noise in the centrifugal pump running that effectively solves on the cost of production basis.
For solving the problems of the technologies described above, technological scheme of the present invention is filtered decompressor from the drainage of original centrifugal pump outlet(discharge) flange through a cover, links to each other with the motor condenser system, the cooling water that comes out from condensation tube injects impeller inlet by the jet pipe of pump inlet flange, forms the water circulation.
A kind of low noise electric centrifugal pump comprises filter screen, mediation screw, relief pipe, throttle, bearing cooling cavity volume, condensation motor casing, connecting tube, jet pipe, water intake, water outlet.The present invention has designed a kind of drainage-fluidic device, and is a cover motor water cooling circulatory system with traditional motor air-cooled structure system reform, forms new horizontal direct-connected electric centrifugal pump structure.
Be provided with throttle valve between decompressor and the motor condenser system, be used for controlling the flow of condensed water, the motor radiating amount the when aperture of valve is moved according to pump assembly under the different operating modes is determined.
Compare with the horizontal direct-connected electronic centrifugal water pump unit of tradition, the present invention has cancelled the device of fan cooled motor, makes water-cooled machine shell mechanism into, has kept the major part design of original water pump and motor.Owing to there is not fan noise, and aluminum water-cooling motor cover also has well isolated effect to electromagnetic noise, and the pump assembly noise reduces greatly.Because the drainage fluidic device is equal to the inlet pressure that improves pump, the import that can effectively suppress pump under the small flow refluxes, and has improved the cavitation performance of pump to a certain extent, thereby strengthens the operation stability of pump.The heat extraction of aluminum water-cooling motor cover is effective, can not impact the electric pump surrounding environment, and aluminium product can not get rusty, thereby increase working life of product.Leave clutch shaft bearing cooling cavity volume at the bearing place, the second bearing cooling chamber, condensation tube adopts two " S " type structure wound motors, can effectively solve the cooling liquid problem that the diverse location temperature rise differs greatly in water jacket in bearing heat radiation and the existing water jacket type water-cooled machine water jacket.Owing to cancelled fan in the design and shortened the length of motor shaft, the present invention does not increase cost when producing.
Described motor condenser system comprises clutch shaft bearing cooling cavity volume, condensation motor casing and second bearing cooling cavity volume, and wherein the condensation motor casing is cast in together by cast iron bracket, copper pipe and aluminum hull again.
Described decompressor and motor water cooling coagulate and are provided with throttle valve between the system, are used for controlling the flow of condensed water, and the motor radiating amount the when aperture of valve is moved according to pump assembly under the different operating modes is determined.
Technological scheme of the present invention, the working procedure of low noise electric centrifugal pump is: in the motor-drive pump running, the impeller rotation produces lift, and the outlet of the pump housing is high pressure, and import is low pressure.High pressure water is by delivery side of pump flange runner, and the drainage of process filter screen is to relief pipe.Decompression water is introduced into the motor condenser system, and its flow is by the throttle control that connects.The motor condenser system by bearing cool off cavity volume, the condensation motor casing is formed, the condensation motor casing is cast in together by cast iron bracket, copper pipe and aluminum hull again.Condensed water enters the water intake of condensation motor casing and along with copper pipe is two " S " type wound motors from clutch shaft bearing cooling cavity volume, homogeneous band is walked heat, finally, condensed water enters second bearing cooling cavity volume through water outlet, leave motor by connecting tube, and by jet pipe introducing impeller inlet, form the water circulation.
The invention has the advantages that electric pump unit overall noise is low and can suppress centrifugal pump import backflow and raising cavitation performance, motor radiating is even, and running stability is strong in the pump work process, can realize " calm type " operation of pipe-line system.
Description of drawings
Fig. 1 is the erection drawing of a kind of low noise electric centrifugal pump of the present invention.
Fig. 2 is the condensation motor casing sectional drawing of a kind of low noise electric centrifugal pump of the present invention.
Fig. 3: be the deployed configuration schematic representation of two " S " cooling water channels of a kind of low noise electric centrifugal pump of the present invention.
Among the figure: 1. impeller, the 2. pump housing, 3. filter screen, 4. mediation screw, 5. relief pipe, 6. throttle, 7. clutch shaft bearing cools off cavity volume, 8. condensation motor casing, 9. second bearing cooling cavity volume, 10. connecting tube, 11. jet pipes, 12. electric machine stator irons, 13. cast iron bracket, 14. copper pipes, 15. aluminum hulls, 16. water intake, 17. water outlets.
Embodiment
In the motor-drive pump running, impeller 1 rotation produces lift, and the outlet of the pump housing 2 is high pressure, and import is low pressure.Open conduction hole at the centrifugal pump outlet(discharge) flange, the outlet(discharge) flange runner of high-pressure water pump enters relief pipe 5 and carries out step-down through filter screen 3, and conduction hole adds mediation screw 4 so that cleaning.Decompression water is introduced into the motor condenser system, and its flow is by throttle valve 6 controls that connect.Throttle valve 6 and clutch shaft bearing cooling cavity volume 7 is connected by conduit, and the water after the step-down enters condensation motor casing 8 through clutch shaft bearing cooling cavity volume 7 by import 16, and is pair " S " types with copper pipe 14 and walks heat around the electric machine casing fluxion strap.Housing is made of aluminum, and copper pipe 14 is fixed on the cast iron bracket 13, and the in aggregates and cast iron bracket of described cast iron bracket, copper pipe and housing casting and copper pipe are wrapped in aluminum hull 15 walls, and water intake 16 and the water outlet 17 of described copper pipe stretch out housing.Condensed water enters second bearing cooling cavity volume 9 by water outlet 17, docks by connecting tube 10 between cavity volume and the jet pipe 11.Condensed water finally causes impeller inlet by jet pipe 11, forms the water circulation.
Adopt above-mentioned mode of execution, at first the condensation motor casing adopts aluminium to make, and its quality is light and heat-transfer effect good, and the mechanical strength that cast iron bracket 13 can increase casing is set, and the location when being conducive to copper pipe 14 casting.Secondly, because traditional screw type or " S " can cause the temperature difference at motor two ends, in electric machine temperature rise calculated, the temperature peak was offset to the coolant outlet place.The copper pipe 14 that the present invention adopts is two " S " type wound motors and is equal to and is provided with two cooling water channels, feed along the opposite cooling liquid of electric machine stator iron 12 axial flow direction in two cooling water channels, make and carry out heat exchange between the cooling liquid in two cooling water channels, can make the temperature rise of motor diverse location keep consistent as much as possible.At last, because the drainage fluidic device is equal to the inlet pressure that improves pump, the import that can effectively suppress pump under the small flow refluxes, and has improved the cavitation performance of pump to a certain extent, thereby strengthens the operation stability of pump.
Claims (6)
1. low noise electric centrifugal pump, it is characterized in that: comprise a kind of drainage-fluidic device, motor water cooling system, wherein drainage-fluidic device is made up of relief pipe (5), connecting tube (10), jet pipe (11), water intake (16) and water outlet (17); The motor water cooling system comprises clutch shaft bearing cooling cavity volume (7), condensation motor casing (8) and second bearing cooling cavity volume (9); Clutch shaft bearing cooling cavity volume (7) links to each other by water intake (16) with condensation motor casing (8), and second bearing cooling cavity volume (9) links to each other by water outlet (17) with condensation motor casing (8); Described drainage-fluidic device and motor water cooling system form circulation loop at centrifugal delivery side of pump and ingress.
2. a kind of low noise electric centrifugal pump according to claim 1, it is characterized in that: relief pipe (5) is connected by filter screen (3) with the water outlet of impeller (1).
3. a kind of low noise electric centrifugal pump according to claim 2 is characterized in that: be provided with mediation screw (4) between relief pipe (5) and the filter screen (3); Be provided with throttle (6) between relief pipe (5) and the clutch shaft bearing cooling cavity volume (7).
4. according to claims 3 described low noise electric centrifugal pumps, it is characterized in that: described mediation screw (4) is arranged on conduction hole place on the centrifugal pump outlet(discharge) flange.
5. according to the described low noise electric centrifugal pump of claim item 1, it is characterized in that: described centrifugal pump condensation motor casing comprises cast iron bracket (13), copper pipe (14), aluminum hull (15), described cast iron bracket (13), copper pipe (14) and aluminum hull (15) are cast into one; Cast iron bracket (13) and copper pipe (14) are wrapped in aluminum hull (15) wall.
6. according to claim item 5 described centrifugal pump condensation motor casings, it is characterized in that: described copper pipe (14) is arranged on the cast iron bracket (13), described copper pipe (14) is two " S " types around cast iron bracket (13), and water intake (16) and the water outlet (17) of copper pipe (14) stretch out housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310203818.9A CN103244436B (en) | 2013-05-29 | 2013-05-29 | A kind of Low-noise electric centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310203818.9A CN103244436B (en) | 2013-05-29 | 2013-05-29 | A kind of Low-noise electric centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
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| CN103244436A true CN103244436A (en) | 2013-08-14 |
| CN103244436B CN103244436B (en) | 2016-01-20 |
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| CN201310203818.9A Active CN103244436B (en) | 2013-05-29 | 2013-05-29 | A kind of Low-noise electric centrifugal pump |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615416A (en) * | 2013-11-25 | 2014-03-05 | 丹东克隆先锋泵业有限公司 | Magnetic pump capable of preventing particulate matter from entering inner rotor cavity |
| CN106505783A (en) * | 2016-12-19 | 2017-03-15 | 南京磁谷科技有限公司 | A kind of 280kw magnetic-suspension high-speeds blower fan structure |
| CN111817486A (en) * | 2020-07-06 | 2020-10-23 | 杭州沃德水泵制造有限公司 | Motor casing and manufacturing and forming process thereof |
| CN113007103A (en) * | 2021-03-08 | 2021-06-22 | 佛山市顺德区一拓电气有限公司 | Water pump |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477875Y (en) * | 2001-03-20 | 2002-02-20 | 上海连成泵业制造有限公司 | Energy saving water cooling and low noise pump set |
| CN2594499Y (en) * | 2002-12-13 | 2003-12-24 | 上海东方泵业制造有限公司 | Low-noise hydrocooling centrifugal pump |
| US20050047933A1 (en) * | 2002-10-04 | 2005-03-03 | Gianni Ottoboni | Low-noise pump cooled by the pumped water |
| EP2182219A2 (en) * | 2008-11-03 | 2010-05-05 | Wilo Se | Centrifugal motor pump |
| CN102536841A (en) * | 2010-12-31 | 2012-07-04 | 开利泵业(集团)有限公司 | Containerized-type energy-saving low-noise water-cooling centrifugal pump |
| CN102808779A (en) * | 2011-06-03 | 2012-12-05 | 开利泵业(集团)有限公司 | Low-noise water-cooled centrifugal pump |
| CN102857017A (en) * | 2011-06-30 | 2013-01-02 | 南车戚墅堰机车车辆工艺研究所有限公司 | Integrated water-cooling motor shell |
| CN202679157U (en) * | 2012-07-25 | 2013-01-16 | 上海中科深江电动车辆有限公司 | Cooling water path structure of motor shell |
| CN203430798U (en) * | 2013-05-29 | 2014-02-12 | 江苏大学 | Low-noise electric centrifugal pump |
-
2013
- 2013-05-29 CN CN201310203818.9A patent/CN103244436B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2477875Y (en) * | 2001-03-20 | 2002-02-20 | 上海连成泵业制造有限公司 | Energy saving water cooling and low noise pump set |
| US20050047933A1 (en) * | 2002-10-04 | 2005-03-03 | Gianni Ottoboni | Low-noise pump cooled by the pumped water |
| CN2594499Y (en) * | 2002-12-13 | 2003-12-24 | 上海东方泵业制造有限公司 | Low-noise hydrocooling centrifugal pump |
| EP2182219A2 (en) * | 2008-11-03 | 2010-05-05 | Wilo Se | Centrifugal motor pump |
| CN102536841A (en) * | 2010-12-31 | 2012-07-04 | 开利泵业(集团)有限公司 | Containerized-type energy-saving low-noise water-cooling centrifugal pump |
| CN102808779A (en) * | 2011-06-03 | 2012-12-05 | 开利泵业(集团)有限公司 | Low-noise water-cooled centrifugal pump |
| CN102857017A (en) * | 2011-06-30 | 2013-01-02 | 南车戚墅堰机车车辆工艺研究所有限公司 | Integrated water-cooling motor shell |
| CN202679157U (en) * | 2012-07-25 | 2013-01-16 | 上海中科深江电动车辆有限公司 | Cooling water path structure of motor shell |
| CN203430798U (en) * | 2013-05-29 | 2014-02-12 | 江苏大学 | Low-noise electric centrifugal pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615416A (en) * | 2013-11-25 | 2014-03-05 | 丹东克隆先锋泵业有限公司 | Magnetic pump capable of preventing particulate matter from entering inner rotor cavity |
| CN106505783A (en) * | 2016-12-19 | 2017-03-15 | 南京磁谷科技有限公司 | A kind of 280kw magnetic-suspension high-speeds blower fan structure |
| CN111817486A (en) * | 2020-07-06 | 2020-10-23 | 杭州沃德水泵制造有限公司 | Motor casing and manufacturing and forming process thereof |
| CN113007103A (en) * | 2021-03-08 | 2021-06-22 | 佛山市顺德区一拓电气有限公司 | Water pump |
| CN113007103B (en) * | 2021-03-08 | 2022-09-30 | 广州安捷制造有限公司 | Water pump |
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| Publication number | Publication date |
|---|---|
| CN103244436B (en) | 2016-01-20 |
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130814 Assignee: Jiangsu is a pump industry science and technology Group Co., Ltd forever Assignor: Jiangsu University Contract record no.: 2016320000045 Denomination of invention: Low-noise electric centrifugal pump Granted publication date: 20160120 License type: Exclusive License Record date: 20160229 |
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