CN109838386A - A kind of efficient centrifugal pump - Google Patents
A kind of efficient centrifugal pump Download PDFInfo
- Publication number
- CN109838386A CN109838386A CN201711190825.4A CN201711190825A CN109838386A CN 109838386 A CN109838386 A CN 109838386A CN 201711190825 A CN201711190825 A CN 201711190825A CN 109838386 A CN109838386 A CN 109838386A
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- China
- Prior art keywords
- impeller
- diffuser
- centrifugal pump
- shaft
- motor
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Abstract
The present invention provides a kind of efficient centrifugal pumps, belong to machinery manufacturing technology field.It solves the problems such as existing centrifugal pump power performance is poor.This efficient centrifugal pump, including impeller housing, electric machine casing and middle casing, motor is provided in electric machine casing, motor has motor shaft, impeller shaft is provided in impeller housing, inlet is provided on middle casing, the top of impeller housing is provided with liquid outlet, several impeller units are provided in impeller shaft, impeller units include diffuser and the impeller that is set in diffuser, diffuser lower end, which is provided with, is used to help the fixed end cap of impeller, the upper end has the sketch plate being recessed inwardly for connecting upper level impeller units, the circular passage for impeller drain is offered on sketch plate, several key blocks are provided on the inside of circular passage, edge of the key block from center to diffuser is with spiral extension, form the flow channel for pumping conveying liquid.The present invention has the advantages that powerful, performance are stable.
Description
Technical field
The invention belongs to machinery manufacturing technology fields, are related to a kind of centrifugal pump, in particular to a kind of efficient centrifugal pump.
Background technique
A kind of pump that operating is driven by motor of centrifugal pump drives turning for fluid by the centrifugal force that pump inner impeller generates
It moves to complete the conveying of fluid, is mainly made of impeller and pump case, offer inlet and liquid outlet on pump case, pump work is by liquid
Body is sucked from inlet, then passes through the CENTRIFUGAL ACCELERATING of pump housing inner impeller, so that fluid, which obtains bigger kinetic energy, goes out liquid from pump
Mouth outflow.
Centrifugal pump is many kinds of, according to the demand to power, is divided into single stage centrifugal electric pump and multistage centrifugal electric pump, existing
There is multistage centrifugal pump structure in the market relatively simple, transmission shaft is disposed through in the pump housing, is provided on transmission shaft
Multiple impellers, motor drive multiple impellers by transmission shaft, and adding for fluid is then realized by multistage fluid channel
Pressure, fluid channel are often made of the inner end wall of impeller and pump, due to there is friction, the stream formed in this way between impeller and end wall
The phenomenon that there are poor sealing performances in body channel, will cause the leakage of fluid during transportation, leads to insufficient pressure, meanwhile, by
All be in most multi-stage impeller it is integrally formed, use occasion is limited.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, it is steady to provide a kind of powerful, performance
Fixed efficient centrifugal pump.
Object of the invention can be realized by the following technical scheme: a kind of efficient centrifugal pump, including impeller housing, motor
Shell and the middle casing for connecting electric machine casing and impeller housing, are provided with motor, the electricity in the electric machine casing
Machine has the motor shaft that middle casing is extended to axially across electric machine casing, is provided with and motor shaft phase in the impeller housing
The impeller shaft of connection is provided with inlet on the middle casing, and the top of the impeller housing is provided with and impeller housing
The liquid outlet that internal portion is connected, which is characterized in that several sliceable combined impeller lists are provided in the impeller shaft
Member, the impeller units include diffuser and the impeller that is set in diffuser, and the diffuser lower end setting is useful
In the end cap for helping impeller fixed, the upper end has the sketch plate being recessed inwardly for connecting upper level impeller units, it is described
The circular passage for impeller drain is offered on sketch plate, several key blocks are provided on the inside of the circular passage, it is described
Edge of the key block from center to diffuser with spiral extension, formed for pump the flow channel for conveying liquid.
The working principle of this efficient centrifugal pump: after centrifugation pump startup, the impeller units in impeller shaft are set in motor
Drive under start to rotate, liquid is sucked from inlet, liquid from end cap enter stream impeller units in inside, in impeller
Run at high speed under liquid is thrown away from circular passage, into next impeller units recycle, until from liquid outlet be discharged.
In a kind of above-mentioned efficient centrifugal pump, the impeller includes impeller body and matches under contact with end cap
Arc disk has the axial wheel hub passed through for impeller shaft on the impeller body, is circumferentially evenly distributed on outer circumference surface in spiral shell
The blade of sigmoid is revolved, and the upper end of blade has end plate, forms fluid channel between the end plate, blade and impeller body.
In a kind of above-mentioned efficient centrifugal pump, the edge of the diffuser upper surface is provided with the card to lower recess
Slot, the card slot are assembled for two neighboring impeller units.The design of card slot facilitates the installation of adjacent fan-wheel unit, improves steady
It is qualitative.
In a kind of above-mentioned efficient centrifugal pump, gasket ring is arranged with outside the axial wheel hub, the gasket is circumferential
Under extend on the outside of end cap, and its end is resisted against on sketch plate.
In a kind of above-mentioned efficient centrifugal pump, the connecting portion of the motor shaft and impeller shaft is provided with sealing axis
Set.Preventing liquid from entering connecting portion influences transmission efficiency.
Compared with prior art, this efficient centrifugal pump improves impeller wheel portion, is assembled using seperated impeller units
Mode realize multi-stage booster, have the advantages that powerful, performance are stable.
Detailed description of the invention
Fig. 1 is the overall structure cross-sectional view of this efficient centrifugal pump.
Fig. 2 is the structural schematic diagram of impeller units in this efficient centrifugal pump.
Fig. 3 is the dismounting figure of impeller units in this efficient centrifugal pump.
In figure, 1, impeller housing；2, electric machine casing；3, middle casing；4, motor；5, motor shaft；6, impeller shaft；7, feed liquor
Mouthful；8, liquid outlet；9, impeller units；10, diffuser；11, impeller；12, end cap；13, sketch plate；14, circular passage；15, key
Block；16, flow channel；17, impeller body；18, lower arc disk；19, axial wheel hub；20, blade；21, end plate；22, fluid channel；
23, card slot；24, gasket ring；25, sealing axle sleeve.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, Figure 2, Figure 3 shows, this efficient centrifugal pump, including impeller housing 1, electric machine casing 2 and connection motor casing
The middle casing 3 of body 2 and impeller housing 1 is provided with motor 4 in electric machine casing 2, and motor 4 has to be prolonged axially across electric machine casing 2
The motor shaft 5 of middle casing 3 is extended to, is provided with the impeller shaft 6 being connected with motor shaft 5 in impeller housing 1, on middle casing 3
It is provided with inlet 7, the top of impeller housing 1 is provided with the liquid outlet 8 being connected with inside impeller housing 1, sets in impeller shaft 6
Several sliceable combined impeller units 9 are equipped with, impeller units 9 include diffuser 10 and the leaf being set in diffuser 10
Wheel 11,10 lower end of diffuser, which is provided with, is used to help the fixed end cap 12 of impeller 11, and the upper end, which has, to be recessed inwardly for connecting
The sketch plate 13 of upper level impeller units 9 offers the circular passage 14 for 11 drain of impeller, circular passage 14 on sketch plate 13
Inside be provided with several key blocks 15, from center to the edge of diffuser 10 with spiral extension, formation is used for key block 15
The flow channel 16 of pump conveying liquid.
It further describes in detail, impeller 11 includes impeller body 17 and the lower arc disk 18 that contact is matched with end cap 12, impeller body
There is the axial wheel hub 19 passed through for impeller shaft 6 on 17, be circumferentially evenly distributed with leaf curved in the shape of a spiral on outer circumference surface
Piece 20, and the upper end of blade 20 has end plate 21, and fluid channel 22 is formed between end plate 21, blade 20 and impeller body 17.
In order to improve stability, the edge of 10 upper surface of diffuser is provided with the card slot 23 to lower recess, and card slot 23 is used
It is assembled in two neighboring impeller units 9.
It further describes in detail, gasket ring 24 is arranged with outside axial wheel hub 19, gasket ring 24 extends downward into 12 outside of end cap, and
Its end is resisted against on sketch plate 13.
Liquid, which enters connecting portion, in order to prevent influences transmission efficiency, and motor shaft 5 and the connecting portion of impeller shaft 6 are provided with
Sealing axle sleeve 25.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although impeller housing 1, electric machine casing 2, middle casing 3, motor 4, motor shaft 5, impeller is used more herein
Axis 6, inlet 7, liquid outlet 8, impeller units 9, diffuser 10, impeller 11, end cap 12, sketch plate 13, circular passage 14, key block
15, flow channel 15, impeller body 17, lower arc disk 18, axial wheel hub 19, blade 20, end plate 21, fluid channel 22, card slot 23, pad
The terms such as loop 24, sealing axle sleeve 25, but it does not exclude the possibility of using other terms.The use of these items is only for
It is more convenient to describe and explain essence of the invention；It is construed as any additional limitation all and is and spirit of that invention
It disagrees.
Claims (5)
1. a kind of efficient centrifugal pump, including impeller housing (1), electric machine casing (2) and connection electric machine casing (2) and impeller housing
(1) middle casing (3), the electric machine casing (2) is interior to be provided with motor (4), and the motor (4) has axially across electricity
Casing body (2) extends to the motor shaft (5) of middle casing (3), is provided with and motor shaft (5) phase in the impeller housing (1)
The impeller shaft (6) of connection is provided with inlet (7) on the middle casing (3), and the top of the impeller housing (1) is set
The liquid outlet (8) for being equipped with and being connected inside impeller housing (1), which is characterized in that be provided in the impeller shaft (6) several
A sliceable combined impeller units (9), the impeller units (9) include diffuser (10) and are set to diffuser (10)
Interior impeller (11), the diffuser (10) lower end, which is provided with, is used to help the fixed end cap (12) of impeller, and the upper end has
The sketch plate (13) being recessed inwardly for connecting upper level impeller units (9), the sketch plate offers on (13) for impeller
(11) circular passage (14) of drain is provided with several key blocks (15), the key on the inside of the circular passage (14)
Block (15) is from center to the edge of diffuser (10) with spiral extension.
2. a kind of efficient centrifugal pump according to claim 1, which is characterized in that the impeller (11) include impeller body with
And the lower arc disk (18) of contact is matched with end cap (12), there is the axial wheel passed through for impeller shaft (6) on the impeller body
Hub (19) is circumferentially evenly distributed with blade (20) curved in the shape of a spiral on outer circumference surface, and the upper end of blade (20) has
End plate (21) forms fluid channel (22) between the end plate (21), blade (20) and impeller body.
3. a kind of efficient centrifugal pump according to claim 1, which is characterized in that the edge of diffuser (10) upper surface
Place is provided with the card slot (23) to lower recess, and the card slot (23) is assembled for two neighboring impeller units (9).
4. a kind of efficient centrifugal pump according to claim 2, which is characterized in that be arranged with outside the axial wheel hub (19)
Gasket ring (24), the gasket ring (24) extends downward on the outside of end cap (12), and its end is resisted against on sketch plate (13).
5. a kind of efficient centrifugal pump according to claim 1, which is characterized in that the motor shaft (5) and impeller shaft (6)
Connecting portion be provided with sealing axle sleeve (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190825.4A CN109838386A (en) | 2017-11-24 | 2017-11-24 | A kind of efficient centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190825.4A CN109838386A (en) | 2017-11-24 | 2017-11-24 | A kind of efficient centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109838386A true CN109838386A (en) | 2019-06-04 |
Family
ID=66876384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711190825.4A Withdrawn CN109838386A (en) | 2017-11-24 | 2017-11-24 | A kind of efficient centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109838386A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879307A (en) * | 2020-03-31 | 2021-06-01 | 温岭市高深泵业科技有限公司 | Single-stage external member of partial flow pump and multistage partial flow pump thereof |
| CN115076155A (en) * | 2022-07-19 | 2022-09-20 | 弗里森泵业（太仓）有限公司 | Single-inlet double-side impeller centrifugal pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2174662A1 (en) * | 1993-11-08 | 1995-05-18 | Lloyd D. Hanson | Multistage centrifugal pump with canned magnetic bearing |
| CN203384080U (en) * | 2013-06-04 | 2014-01-08 | 周林 | Submerged infusion pump capable of automatically adjusting inner cavity pressure of motor |
| WO2015145196A1 (en) * | 2014-03-24 | 2015-10-01 | Pedrollo S.P.A. | Centrifugal pump stage, centrifugal pump and use of a pump stage |
| CN205895628U (en) * | 2016-08-12 | 2017-01-18 | 浙江人民泵业有限公司 | High -lift multistage deep well subaqueous pump |
-
2017
- 2017-11-24 CN CN201711190825.4A patent/CN109838386A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2174662A1 (en) * | 1993-11-08 | 1995-05-18 | Lloyd D. Hanson | Multistage centrifugal pump with canned magnetic bearing |
| CN203384080U (en) * | 2013-06-04 | 2014-01-08 | 周林 | Submerged infusion pump capable of automatically adjusting inner cavity pressure of motor |
| WO2015145196A1 (en) * | 2014-03-24 | 2015-10-01 | Pedrollo S.P.A. | Centrifugal pump stage, centrifugal pump and use of a pump stage |
| US20170107990A1 (en) * | 2014-03-24 | 2017-04-20 | Pedrollo S.P.A. | Centrifugal pump stage, centrifugal pump and use of a pump stage |
| CN205895628U (en) * | 2016-08-12 | 2017-01-18 | 浙江人民泵业有限公司 | High -lift multistage deep well subaqueous pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879307A (en) * | 2020-03-31 | 2021-06-01 | 温岭市高深泵业科技有限公司 | Single-stage external member of partial flow pump and multistage partial flow pump thereof |
| CN115076155A (en) * | 2022-07-19 | 2022-09-20 | 弗里森泵业（太仓）有限公司 | Single-inlet double-side impeller centrifugal pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190604 |