CN205401257U - Low noise multistage centrifugal pump - Google Patents
Low noise multistage centrifugal pump Download PDFInfo
- Publication number
- CN205401257U CN205401257U CN201620212742.5U CN201620212742U CN205401257U CN 205401257 U CN205401257 U CN 205401257U CN 201620212742 U CN201620212742 U CN 201620212742U CN 205401257 U CN205401257 U CN 205401257U
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- pump
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- electric machine
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- 239000007788 liquid Substances 0.000 claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000002826 coolant Substances 0.000 claims abstract description 5
- 238000005096 rolling process Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 20
- 230000004087 circulation Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a liquid cooling low noise multistage centrifugal pump, drives pump shaft pivoted motor, pegs graft at the epaxial impeller of pump through the shaft coupling slide bearing that it includes the pump body, fluid -cooled electrical machine, cup joint the pump shaft of axle sleeve and spacer ring, cup jointed in the axle sleeve outside, the shaft coupling that links with the pump shaft to and it is a plurality of through steel band fastening and mutual tandem complex stator. The utility model discloses a liquid cooling low noise multistage centrifugal pump is owing to adopt fluid -cooled electrical machine to eliminate the noise that traditional motor adopted cooling fan to bring, the motor passes through in the motor that casing and shell body are dual closed and hindered motor noise's transmission way simultaneously, thereby has reduced the noise of centrifugal pump, in addition, the stator and the bearing of cooling motor during owing to the coolant liquid component parts of an entirety are in time taken away the heat that the motor produced, have reduced the temperature of motor, have improved the efficiency of motor to multistage centrifugal pump's efficiency has been improved.
Description
Technical field
This utility model relates to industrial liquid conveying and urban water supply and sewerage field, particularly relates to the low noise rustless steel centrifugal multistage pump multiple centrifugal pump that a kind of fluid-cooled electrical machine drives.
Background technology
Centrifugal multistage pump multiple centrifugal pump is applied to conveying and urban water supply and sewerage, the skyscraper pressurized water supply of industrial liquid, and the cold-warm water such as gardens sprinkling irrigation, fire fighting pressurization, long distance water, heating, bathroom is circularly-supercharged and coordinative composition of equipments and air conditioning unit circulation, cooling water conveying etc..
The motor major part that current centrifugal multistage pump multiple centrifugal pump adopts is standard industry motor.Standard industry motor is for the higher application places of noise requirements, and such as house, business office, hotel etc., be difficult to meet the requirement of client.The method reducing noise mainly has two: one to be the oscillation power reducing noise source, and two is hinder or cut off its route of transmission.Reduce the pursuit that noise source oscillation power is projector all the time, but difficulty is relatively big, relatively costly.Hindering or cut off noise transmission paths and also can effectively reduce noise level, however it is necessary that bigger space, cost is high simultaneously.
Liquid of the present utility model cooling centrifugal multistage pump multiple centrifugal pump is owing to adopting fluid-cooled electrical machine, eliminate cooling fan in conventional motors, thus eliminating a noise source, motor is by motor inner housing and shell body dual sealing simultaneously, hinder the pipeline of motor noise, reduce the noise of motor, thus reducing the noise of centrifugal pump；On the other hand, being cooled down stator and the spring bearing of motor by liquid, the heat that motor is produced is taken away in time, reduces the temperature of motor, improves the efficiency of motor, thus improve the efficiency of centrifugal multistage pump multiple centrifugal pump simultaneously.
Utility model content
For solving above-mentioned technical problem, this utility model provides a kind of solution reducing centrifugal multistage pump multiple centrifugal pump noise.
For reaching above-mentioned purpose, the technical solution of the utility model is as follows:
A kind of low noise centrifugal multistage pump multiple centrifugal pump, including:
The pump housing, is positioned at bottom described centrifugal pump, and the described pump housing includes fluid intake and outlet；
Pump shaft, is axially contained in the described pump housing, and described pump shaft is socketed with axle sleeve and wheel space ring；
Sliding bearing, is socketed in outside described axle sleeve, pump shaft described in sliding support；
Impeller, is plugged on described pump shaft and by described wheel space annulate shaft to location, and described pump shaft drives described wheel rotation, thus the fluid pressurization that will enter from described pump housing suction inlet；
Stator, is arranged on outside described axle sleeve, and flow velocity is collected and reduced to the liquid stator described in chopped-off head pressurizeed by described impeller, enters impeller described in next stage and continues pressurization until liquid being discharged from described outlet and sending into water supply system；
Fluid-cooled electrical machine, it is axially mounted to described pump housing upper end by electric machine support, and described electric machine support and the pump housing are locked by turnbuckle；Described electric machine support has support inner shell and rack shell, forms the guiding fluid hole and the hole for back flow that connect described pump housing chamber between described support inner shell and rack shell；The housing of described fluid-cooled electrical machine is made up of the motor inner shell comprising motor stator and motor housing, forms the circulation for motor coolant of the motor liquid back pipe between described motor inner shell and electrode shell；Chamber for housing described impeller and stator has urceolus and inner core, forms the liquid back pipe connecting described hole for back flow between described urceolus and inner core, the outlet of the outlet of the described liquid back pipe extremely described pump housing；
Motor shaft, is axially contained in the middle of the described motor inner shell of described fluid-cooled electrical machine, described fluid-cooled electrical machine drive and rotate；
Rolling bearing, motor shaft described in rolling support；
Shaft coupling, is used for coupling described motor shaft and pump shaft, and described fluid-cooled electrical machine drives described pump shaft to rotate by described motor shaft and shaft coupling；
Described pump shaft adopts mechanical seal through two side positions of described electric machine support, to cut off the fluid described electric machine support of entrance in the described pump housing.
Wherein, described rolling bearing includes front end rolling bearing and rear end rolling bearing, it is respectively used to front end and the rear end of motor shaft described in rolling support, described front end rolling bearing is arranged on the top of described electric machine support, and described motor shaft is stretched in described electric machine support after the rolling bearing of described front end and is connected with described pump shaft by described shaft coupling.
Wherein, described rolling bearing is angular contact deep groove ball bearing, to make it have the bearing capacity of axial load.
Further, being additionally provided with the sealing plate being socketed on described motor shaft in described electric machine support, described sealing plate is by forming coolant circulation passage for taking away the heat produced between described front end rolling bearing and electric machine support and motor shaft between sealing ring and described electric machine support；Described sealing plate, the entrance of cooling passage between sealing ring and electric machine support is respectively communicated to the outlet of described guiding fluid hole and the entrance of hole for back flow with outlet.
Wherein, impeller described in chopped-off head is axially positioned by axis head nut, is axially positioned by axle sleeve between chopped-off head and second level impeller, by described wheel space annulate shaft to location between all the other impellers at different levels.Further, the inner ring of described impeller there is multiple projection radially fixed on multiple grooves of pump shaft outer wall.
Wherein, one end of stator described in chopped-off head is plugged on described axle sleeve, coordinates location by steel band tandem between the other end of stator described in chopped-off head with all the other stators.
Wherein, between described axle sleeve and stator, logical interference fit is assembled together, and is matched in clearance between described sliding bearing and axle sleeve.
Low noise centrifugal multistage pump multiple centrifugal pump of the present utility model adopts fluid-cooled electrical machine, eliminate cooling fan in conventional motors, eliminate a noise source, motor is by motor inner shell and motor housing dual sealing simultaneously, hinder the propagation of noise, reduce the noise of motor, thus reducing the noise of centrifugal pump；On the other hand, in the work process of centrifugal multistage pump multiple centrifugal pump, cooled down stator and the spring bearing of motor by liquid circulation simultaneously, the heat that motor is produced is taken away in time, reduce the temperature of motor, improve the efficiency of motor, thus improve the efficiency of centrifugal multistage pump multiple centrifugal pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of the low noise centrifugal multistage pump multiple centrifugal pump disclosed in this utility model embodiment.
In figure, numeral represents:
1. steel band 2. impeller 3. sliding bearing
4. axle sleeve 5. stator 6. turnbuckle
7. mechanical seal 8. guiding fluid hole 9. front end rolling bearing
10. motor housing 11. fluid-cooled electrical machine 12. rear end rolling bearing
13. the pump housing 14. urceolus 15. liquid back pipe
16. wheel space ring 17. pump shaft 18. hole for back flow
19. shaft coupling 20. electric machine support 21. sealing ring
22. sealing plate 23. motor inner shell 24. motor liquid back pipe
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described.
Fig. 1 is this utility model low noise centrifugal multistage pump multiple centrifugal pump schematic diagram for two-stage, as it can be seen, low noise centrifugal multistage pump multiple centrifugal pump of the present utility model specifically includes: steel band 1, impeller 2, sliding bearing 3, axle sleeve 4, stator 5, turnbuckle 6, mechanical seal 7, guiding fluid hole 8, front end rolling bearing 9, motor housing 10, fluid-cooled electrical machine 11, rear end rolling bearing 12, the pump housing 13, urceolus 14, liquid back pipe 15, wheel space ring 16, pump shaft 17, hole for back flow 18, shaft coupling 19, support 20, sealing ring 21, sealing plate 22, motor inner shell 23, motor liquid back pipe 24.
Pump shaft 17 is contained in impeller 2 and stator 5, and impeller 2 is plugged on pump shaft 17, and pump shaft 17 is socketed with axle sleeve 4 and wheel space ring 16.Sliding bearing 3 is socketed in inside axle sleeve 4, sliding support pump shaft 17, is matched in clearance between sliding bearing 3 and axle sleeve 4.Axle sleeve 4 adopts interference fit on stator 5.The machining accuracy of axle sleeve 4 is higher.The processing request of wheel space ring 16 is relatively much lower, and its major function is the axial location between impeller 2.
Pump shaft 17 adopts sliding bearing 3 to support by axle sleeve 4.Fluid-cooled electrical machine 11 motor shaft is supported by front end rolling bearing 9 and rear end rolling bearing 12, front end rolling bearing 9 is typically the angular contact deep groove ball bearing of axial load bearing capacity and rear end rolling bearing 12 adopts common deep groove ball bearing, and rear end rolling bearing 12 adopts angular contact deep groove ball bearing sometimes.Pump shaft 17 is connected by shaft coupling 19 and motor shaft, and outer liquid cool electric machine 11 drives pump shaft 17 to rotate by shaft coupling 19, and pump shaft 17 impeller 2 rotates, thus the fluid pressurization that will suck from the pump housing 13.The mutual tandem of stator 5 coordinates, and is tightened together by steel band 1, collects and reduces flow velocity by the fluid under pressure of impeller 2 by stator 5, and discharged by the pump housing 13 outlet.
First stage impeller 2 is axially positioned by axis head nut, is axially positioned by axle sleeve 4 between the first order and second level impeller, is axially positioned by wheel space ring 16 between all the other each impellers 2.Impeller 2 inner ring there is multiple projection radially fixed on multiple grooves of pump shaft 17.
The effect of stator 5 is that the liquid that impeller 2 is thrown away collects, and makes the flow velocity of liquid reduce, and after partial velocity can be changed into pressure energy, then is uniformly introduced next stage or discharges feeding fluid pipe network system through the pump housing 13 outlet.Stator 5 makes liquid flow in continuous print runner, is not easily formed dead angle and diffusion suddenly, and fluid velocity change ratio is more uniform, and hydraulic performance is good.
One end of part stator 5 is plugged on axle sleeve 4, and the other end coordinates location by the tandem between stator 5, for instance first-level guide blade 5.And logical interference fit is assembled together between axle sleeve 4 and stator 5, it is matched in clearance between sliding bearing 3 and axle sleeve 4.Part stator 5 is without assembling sleeve 5, and by coordinating location with other stator 5 tandems, namely the other end of stators 5 at different levels is fixed by steel band 1 tandem.
According to different impeller diameters and different progression, multiple sliding bearings 3 can be configured for centrifugal multistage pump multiple centrifugal pump, by adjusting the quantity optimization of sliding bearing 3, it is ensured that centrifugal multistage pump multiple centrifugal pump safe and stable operation.
Electric machine support 20 is opened guiding fluid hole 8 and hole for back flow 18, as the circulation canal of cooling motor liquid.Liquid introduces in the cavity closed between motor inner shell 23 and motor housing 10 from centrifugal pump high pressure chest by 8 liquid of the guiding fluid hole electric machine support 20, cooling liquid is by the hole for back flow 18 on electric machine support 20 after motor liquid back pipe 24, and constitutes blood circulation via connecting with multistage pump low pressure chamber after liquid back pipe 15.Then and flow into and complete internal cooling in hole for back flow 18 liquid of cooling motor is separated with extraneous by sealing ring 21 by sealing plate 22, and part cooling liquid branches in the chamber that electric machine support 20, sealing plate 22 and sealing ring 21 are constituted via guiding fluid hole 8,.In centrifugal multistage pump multiple centrifugal pump work process, circulation liquid takes away the heat of motor stator generation and the heat of spring bearing mechanical friction in the course of the work generation timely, all the time motor and spring bearing temperature is allowed to be maintained at a relatively low temperature of apparent wind cool electric machine, improve the efficiency of motor, thus improve the efficiency of low noise multistage pump.
Pump shaft 17 adopts mechanical seal 7 through two side positions of electric machine support 20, internal with the fluid entrance electric machine support 20 cut off in the pump housing 13.
The pump shaft 17 of low noise centrifugal multistage pump multiple centrifugal pump of the present utility model is directly driven by fluid-cooled electrical machine 11 by shaft coupling 19, and 2 liquid pumpings of pump shaft 17 impeller are to the lift specified.Low noise centrifugal multistage pump multiple centrifugal pump sucks low noise centrifugal multistage pump multiple centrifugal pump through the pump housing 13 suction inlet by impeller 2 liquid, liquid is after impeller 2 pressurizes, enter subordinate's impeller 2 through stator 5 and continue pressurization, then pass through subordinate's stator 5 and enter the pressurization of next stage impeller, until being discharged by final stage stator 5 after being terminated by impeller 2 pressure process, finally, low noise centrifugal multistage pump multiple centrifugal pump sends into tubing the liquid of high pressure runner between stator 5 and urceolus 14 from the outlet of the pump housing 13.
Requirement according to pumped (conveying) medium, low noise centrifugal multistage pump multiple centrifugal pump of the present utility model can be selected for corresponding material, corrosion resistant material as antirust in rustless steel, titanium alloy etc..
The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein when without departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (8)
1. a low noise centrifugal multistage pump multiple centrifugal pump, it is characterised in that including:
The pump housing, is positioned at bottom described centrifugal pump, and the described pump housing includes fluid intake and outlet；
Pump shaft, is axially contained in the described pump housing, and described pump shaft is socketed with axle sleeve and wheel space ring；
Sliding bearing, is socketed in outside described axle sleeve, pump shaft described in sliding support；
Impeller, is plugged on described pump shaft and by described wheel space annulate shaft to location, and described pump shaft drives described wheel rotation, thus the fluid pressurization that will enter from described pump housing suction inlet；
Stator, is arranged on outside described axle sleeve, and flow velocity is collected and reduced to the liquid stator described in chopped-off head pressurizeed by described impeller, enters impeller described in next stage and continues pressurization until liquid being discharged from described outlet and sending into water supply system；
Fluid-cooled electrical machine, it is axially mounted to described pump housing upper end by electric machine support, and described electric machine support and the pump housing are locked by turnbuckle；Described electric machine support has support inner shell and rack shell, forms the guiding fluid hole and the hole for back flow that connect described pump housing chamber between described support inner shell and rack shell；The housing of described fluid-cooled electrical machine is made up of the motor inner shell comprising motor stator and motor housing, forms the circulation for motor coolant of the motor liquid back pipe between described motor inner shell and electrode shell；Chamber for housing described impeller and stator has urceolus and inner core, forms the liquid back pipe connecting described hole for back flow between described urceolus and inner core, the outlet of the outlet of the described liquid back pipe extremely described pump housing；
Motor shaft, is axially contained in the middle of the described motor inner shell of described fluid-cooled electrical machine, described fluid-cooled electrical machine drive and rotate；
Rolling bearing, motor shaft described in rolling support；
Shaft coupling, is used for coupling described motor shaft and pump shaft, and described fluid-cooled electrical machine drives described pump shaft to rotate by described motor shaft and shaft coupling；
Described pump shaft adopts mechanical seal through two side positions of described electric machine support, to cut off the fluid described electric machine support of entrance in the described pump housing.
2. low noise centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterized in that, described rolling bearing includes front end rolling bearing and rear end rolling bearing, it is respectively used to front end and the rear end of motor shaft described in rolling support, described front end rolling bearing is arranged on the top of described electric machine support, and described motor shaft is stretched in described electric machine support after the rolling bearing of described front end and is connected with described pump shaft by described shaft coupling.
3. low noise centrifugal multistage pump multiple centrifugal pump according to claim 2, it is characterised in that described rolling bearing is angular contact deep groove ball bearing, to make it have the bearing capacity of axial load.
4. low noise centrifugal multistage pump multiple centrifugal pump according to claim 3, it is characterized in that, being additionally provided with the sealing plate being socketed on described motor shaft in described electric machine support, described sealing plate is by forming coolant circulation passage for taking away the heat produced between described front end rolling bearing and electric machine support and motor shaft between sealing ring and described electric machine support；Described sealing plate, the entrance of cooling passage between sealing ring and electric machine support is respectively communicated to the outlet of described guiding fluid hole and the entrance of hole for back flow with outlet.
5. low noise centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterized in that, impeller described in chopped-off head is axially positioned by axis head nut, is axially positioned by axle sleeve between chopped-off head and second level impeller, by described wheel space annulate shaft to location between all the other impellers at different levels.
6. low noise centrifugal multistage pump multiple centrifugal pump according to claim 5, it is characterised in that have multiple projection radially fixed on multiple grooves of pump shaft outer wall on the inner ring of described impeller.
7. low noise centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that one end of stator described in chopped-off head is plugged on described axle sleeve, coordinates location by steel band tandem between the other end of stator described in chopped-off head with all the other stators.
8. low noise centrifugal multistage pump multiple centrifugal pump according to claim 1, it is characterised in that between described axle sleeve and stator, logical interference fit is assembled together, and is matched in clearance between described sliding bearing and axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620212742.5U CN205401257U (en) | 2016-03-18 | 2016-03-18 | Low noise multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620212742.5U CN205401257U (en) | 2016-03-18 | 2016-03-18 | Low noise multistage centrifugal pump |
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| Publication Number | Publication Date |
|---|---|
| CN205401257U true CN205401257U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620212742.5U Active CN205401257U (en) | 2016-03-18 | 2016-03-18 | Low noise multistage centrifugal pump |
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| Country | Link |
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| CN (1) | CN205401257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673574A (en) * | 2016-03-18 | 2016-06-15 | 池泉 | Low-noise multi-stage centrifugal pump |
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2016
- 2016-03-18 CN CN201620212742.5U patent/CN205401257U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673574A (en) * | 2016-03-18 | 2016-06-15 | 池泉 | Low-noise multi-stage centrifugal pump |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171012 Address after: 201706, 6355, 2, 3, North East Road, Qingpu District, Shanghai Patentee after: Shanghai Han Automation Technology Co., Ltd. Address before: 201706 Shanghai, Qingpu, Hong Kong East Road, Shanghai Panda Machinery (Group) Co., Ltd. Patentee before: Chi Quan |