CN109838411A - A kind of impeller blade for centrifugal pump - Google Patents
A kind of impeller blade for centrifugal pump Download PDFInfo
- Publication number
- CN109838411A CN109838411A CN201711190822.0A CN201711190822A CN109838411A CN 109838411 A CN109838411 A CN 109838411A CN 201711190822 A CN201711190822 A CN 201711190822A CN 109838411 A CN109838411 A CN 109838411A
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- China
- Prior art keywords
- impeller
- blade
- diffuser
- centrifugal pump
- end cap
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Abstract
The present invention provides a kind of impeller blades for centrifugal pump, belong to component of machine technical field.It solves the problems, such as that existing centrifugal blade wheel load is hypodynamic.This is used for the impeller blade of centrifugal pump, including diffuser and the impeller being set in diffuser, diffuser lower end is provided with end cap, impeller includes impeller body and matches the lower arc disk of contact with end cap, the axial wheel hub that there is power supply arbor to pass through on impeller body, blade curved in the shape of a spiral is circumferentially evenly distributed on its outer circumference surface, and the upper end of blade has end plate, end plate, fluid channel is formed between blade and impeller body, diffuser upper end is provided with the sketch plate being recessed inwardly, the circular passage being connected with fluid channel 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, long service life.
Description
Technical field
The invention belongs to component of machine technical field, be related to a kind of impeller blade, in particular to it is a kind of for centrifugal pump
Impeller blade.
Background technique
Centrifugal pump refers to the centrifugal force by generating when impeller rotation to convey the pump of liquid, mainly by impeller, the pump housing, pump
Axis, bearing, sealing ring and stuffing-box etc. are constituted.Centrifugal pump has the advantages of compact-sized, uniform flow, smooth running, impeller
It is the core of centrifugal pump, impeller rotation generates centrifugal force and sucks fluid from import, then by fluid channel to fluid
It pressurizes, is finally discharged from outlet and completes a complete process, therefore, the structure of impeller plays the performance of centrifugal pump
Vital effect.
In existing market for the design of centrifugal pump impeller, reduced mostly by the way that wheel body is designed to that surfaces externally and internally is smooth
Then the pressurization of fluid is realized in the friction loss of water flow by multistage fluid channel, fluid channel is often by impeller and pump
Inner end wall composition, due between impeller and end wall exist friction, there are poor sealing performance to show for the fluid channel formed in this way
As will cause the leakage of fluid during transportation, leading to insufficient pressure.
Summary of the invention
The purpose of the present invention is providing for the above-mentioned problems in the prior art, a kind of frictional force is small, power is strong
Strength, the impeller with long service life for centrifugal pump.
Object of the invention can be realized by the following technical scheme: a kind of impeller blade for centrifugal pump, feature exist
In including diffuser and the impeller being set in diffuser, the diffuser lower end, which is provided with, to be used to help impeller and fix
End cap, the impeller includes impeller body and matches the lower arc disk of contact with end cap, has on the impeller body and supplies
The axial wheel hub that motor shaft passes through circumferentially is evenly distributed with blade curved in the shape of a spiral on outer circumference surface, and blade is upper
End has end plate, fluid channel is formed between the end plate, blade and impeller body, the diffuser upper end is provided with inwardly
The sketch plate of recess offers the circular passage being connected with fluid channel on the sketch plate, the circular passage
Inside is provided with several key blocks, and edge of the key block from center to diffuser is formed with spiral extension for pumping
Convey the flow channel of liquid.
This is used for the technical effect of the impeller blade of centrifugal pump: after impeller blade is applied on centrifugal pump by axis hole installation,
It is rotated under the driving of motor, the liquid of sucking is stored in the fluid channel of itself by impeller blade, is then added by rotating centrifugal
Speed gets rid of it to sketch plate by circular passage, is transmitted to next stage by key block.
In a kind of above-mentioned impeller blade for centrifugal pump, the end cap opening has the blowout patche to raise upward,
The blowout patche is used to be resisted against the lower arc disk of impeller.Reduce the contact area of arc disk under end cap and impeller, reduces friction.
In a kind of above-mentioned impeller blade for centrifugal pump, it is arranged with gasket ring outside the axial wheel hub, it is described
Gasket ring extends downward on the outside of end cap.The abrasion that impeller is substituted with gasket ring further decreases the ring of the lower arc disk of impeller
The edge slot of shape part and end cap, so that hydraulic slip caused by fluid leakage is eliminated between two sealing surfaces, thus
Improve flow and hydraulic performance.
In a kind of above-mentioned impeller blade for centrifugal pump, the gasket ring is made of polyetheretherketonematerials materials.It is poly-
Ether ether ketone material is the polymer of a kind of high-durability and low lubricity, improves stability of the gasket ring in stress.
Compared with prior art, this changes traditional blade wheel structure for the impeller blade of centrifugal pump, is arranged on impeller
The shortcomings that having fluid channel, avoiding insufficient pressure while improving liquid transfer efficiency, has powerful, long service life
The advantages of.
Detailed description of the invention
Fig. 1 is this general structure schematic diagram for the impeller blade of centrifugal pump
Fig. 2 is this structure sectional view for the impeller blade of centrifugal pump.
In figure, 1, diffuser；2, impeller；3, end cap；4, impeller body；5, lower arc disk；6, axial wheel hub；7, blade；8, it holds
Disk；9, fluid channel；10, sketch plate；11, circular passage；12, key block；13, blowout patche；14, gasket ring.
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 and Figure 2, this impeller blade for being used for centrifugal pump, including diffuser 1 and the leaf being set in diffuser 1
Wheel 2,1 lower end of diffuser, which is provided with, is used to help the fixed end cap 3 of impeller 2, and impeller 2 includes impeller body 4 and matches with end cap 3
The lower arc disk 5 of splice grafting touching, the axial wheel hub 6 that there is on impeller body 4 power supply arbor to pass through circumferentially are uniformly distributed on outer circumference surface
There is blade 7 curved in the shape of a spiral, and the upper end of blade 7 has end plate 8, forms fluid between end plate 8, blade 7 and impeller body 4
Channel 9,1 upper end of diffuser be provided with the sketch plate 10 being recessed inwardly, and offers on sketch plate 10 and is connected with fluid channel 9
Circular passage 11, the inside of circular passage 11 are provided with several key blocks 12, key block 12 from center to the edge of diffuser 1 with
Spiral extension forms the flow channel for pumping conveying liquid.
In order to reduce the contact area of end cap 3 and the lower arc disk 5 of impeller 2, friction is reduced, 3 opening of end cap has upward convex
The blowout patche 13 risen, the blowout patche 13 are used to be resisted against the lower arc disk 5 of impeller 2.
In order to improve flow and hydraulic performance, it is arranged with gasket ring 14 outside axial wheel hub 6, gasket ring 14 extends downwardly
To 3 outside of end cap.The abrasion that impeller 2 is substituted with gasket ring 14, further decrease the lower arc disk 5 of impeller 2 annular section and
The edge slot of end cap 3, so that eliminating hydraulic slip caused by fluid leakage between two sealing surfaces.
In order to improve stability of the gasket ring 14 in stress, gasket ring 14 is made of polyetheretherketonematerials materials.
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 surmounts model d defined in the appended claims encloses.
Although diffuser 1, impeller 2, end cap 3, impeller body 4, lower arc disk 5, axial wheel hub 6, leaf is used more herein
The terms such as piece 7, end plate 8, fluid channel 9, sketch plate 10, circular passage 11, key block 12, blowout patche 13, gasket ring 14, but do not arrange
A possibility that except other terms are used.The use of these items is only for be more convenient to describe and explain essence of the invention；
Being construed as any additional limitation is disagreed with spirit of that invention.
Claims (4)
1. a kind of impeller blade for centrifugal pump, which is characterized in that including diffuser (1) and be set in diffuser (1)
Impeller (2), the diffuser (1) lower end, which is provided with, is used to help impeller (2) fixed end cap (3), the impeller (2) packet
It includes impeller body (4) and matches the lower arc disk (5) of contact with end cap (3), there is power supply arbor to wear on the impeller body (4)
The axial wheel hub (6) crossed circumferentially is evenly distributed with blade (7) curved in the shape of a spiral on outer circumference surface, and blade (7) is upper
End has end plate (8), forms fluid channel (9) between the end plate (8), blade (7) and impeller body (4), the diffusion
Device (1) upper end is provided with the sketch plate (10) being recessed inwardly, and offers on the sketch plate (10) and is connected with fluid channel (9)
Logical circular passage (11) is provided with several key blocks (12), the key block (12) on the inside of the circular passage (11)
The flow channel for pumping conveying liquid is formed with spiral extension from center to the edge of diffuser (1).
2. a kind of impeller blade for centrifugal pump according to claim 1, which is characterized in that end cap (3) opening
Locate that there is the blowout patche (13) to raise upward, the blowout patche (13) is used to be resisted against the lower arc disk (5) of impeller (2).
3. a kind of impeller blade for centrifugal pump according to claim 1, which is characterized in that the axial wheel hub (6)
It is arranged with gasket ring (14) outside, the gasket ring (14) extends downward on the outside of end cap (3).
4. a kind of impeller blade for centrifugal pump according to claim 3, which is characterized in that the gasket ring (14) is adopted
It is made of polyetheretherketonematerials materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190822.0A CN109838411A (en) | 2017-11-24 | 2017-11-24 | A kind of impeller blade for centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711190822.0A CN109838411A (en) | 2017-11-24 | 2017-11-24 | A kind of impeller blade for centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109838411A true CN109838411A (en) | 2019-06-04 |
Family
ID=66876383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711190822.0A Withdrawn CN109838411A (en) | 2017-11-24 | 2017-11-24 | A kind of impeller blade for centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109838411A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020064460A1 (en) * | 2000-11-29 | 2002-05-30 | Industrial Technology Research Institute | Integrated 3-D blade structure |
| EP2025942A2 (en) * | 2007-08-01 | 2009-02-18 | Franklin Electric Co., Inc. | Submersible multistage pump with impellers having diverging shrouds |
| CN106133325A (en) * | 2014-03-24 | 2016-11-16 | 倍得龙有限公司 | The purposes of centrifugal pump stage, centrifugal pump and pump stage |
| CN206448980U (en) * | 2016-12-30 | 2017-08-29 | 浙江大秦泵业有限公司 | Deep well pump and its impeller component |
-
2017
- 2017-11-24 CN CN201711190822.0A patent/CN109838411A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020064460A1 (en) * | 2000-11-29 | 2002-05-30 | Industrial Technology Research Institute | Integrated 3-D blade structure |
| EP2025942A2 (en) * | 2007-08-01 | 2009-02-18 | Franklin Electric Co., Inc. | Submersible multistage pump with impellers having diverging shrouds |
| CN106133325A (en) * | 2014-03-24 | 2016-11-16 | 倍得龙有限公司 | The purposes of centrifugal pump stage, centrifugal pump and 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 |
| CN206448980U (en) * | 2016-12-30 | 2017-08-29 | 浙江大秦泵业有限公司 | Deep well pump and its impeller component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190604 |