CN103244456A - Centrifugal pump impeller - Google Patents
Centrifugal pump impeller Download PDFInfo
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- CN103244456A CN103244456A CN2013101631726A CN201310163172A CN103244456A CN 103244456 A CN103244456 A CN 103244456A CN 2013101631726 A CN2013101631726 A CN 2013101631726A CN 201310163172 A CN201310163172 A CN 201310163172A CN 103244456 A CN103244456 A CN 103244456A
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- centrifugal pump
- impeller
- groove
- cover plate
- pump
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Abstract
The invention discloses a centrifugal pump impeller which comprises a wheel cover plate forming a centrifugal pump impeller. The cover plate is provided with a mounting corresponding side corresponding to a body or pump cover of a centrifugal pump or corresponding to a liquid guide, and is provided with a plurality of cavities on the surface of the corresponding side, and the cavities are evenly and symmetrically arranged on the corresponding side in a surrounding manner. The cavities open outwardly in the radial direction of the cover plate. The cavities and the body or pump cover of the centrifugal pump or the liquid guide form toothed chambers. Energy is transmitted from the toothed chambers outside the impeller cover plate of the impeller to liquid in an impeller main channel. The process of energy transmission by three-dimensional flowing kinetic exchange repeats for multiple times in the whole peripheral toothed channel, and accordingly the centrifugal pump impeller has high lift that a conventional vane pump is unable to reach. The centrifugal pump impeller has the advantages that geometric size and flow are kept constant while the lift of the existing centrifugal pump is increased.
Description
Technical field
The invention belongs to Machine Design and make the field, especially belong to centrifugal pump and manufacture and design the field, particularly single-stage and multistage centrifugal pump impeller design and manufacturing technology.
Background technique
Improving centrifugal pump lift is the key of centrifugal pump technology.The main method that existing common blade pump raising lift particularly closes the dead point lift is to improve the rotating speed of pump and increase impeller outer diameter, and these methods all will increase the volume of manufacture cost and product.
Summary of the invention
The present invention discloses a kind of centrifugal pump impeller according to the deficiencies in the prior art.The present invention is by adopting novel composite impeller and partly form rational fit system with the pump housing, constituted the series operation model of two kinds of form impellers under the constant prerequisite of revolution speed and impeller size, effectively raises centrifugal lift of pump.
The present invention is achieved through the following technical solutions:
Centrifugal pump impeller, comprise the wheel dish type cover plate that constitutes centrifugal pump impeller, cover plate has the installation opposing side corresponding with the pump housing, pump cover or the deflector of centrifugal pump, it is characterized in that: there are a plurality of grooves on the surface of opposing side on the described cover plate, groove arranges symmetrically and evenly around opposing side, groove is at the outside opening of cover plate radial direction, and the pump housing of groove and centrifugal pump, pump cover or deflector form the profile of tooth cavity.
Described groove is arranged on the circumference of wheel dish type cover plate opposing side, quantity is 24～60, the selection of groove number also will be considered impeller diameter and manufacture method etc., and the maximum circumferential thickness of the groove tooth between common two adjacent grooves is 0.6～1.5 with the ratio of groove axial height.
Arranging mainly of described groove considers that from structure and intensity angle the groove axial height is 0.4～0.6 times of impeller cover thickness, and the groove radial length is about 1.1～2 times of axial height.
When the present invention used at single stage centrifugal pump, impeller had two cover plates that are oppositely arranged, and every cover plate has the groove that is arranged on the opposing side respectively.
When the present invention used at multistage centrifugal pump, impeller had a cover plate, and cover plate has the groove that is arranged on the opposing side.
Core of the present invention is the profile of tooth cavity that reeded impeller and the pump housing that cooperates with it, pump cover or deflector form, obtain more high-lift principle and be that impeller of the present invention installs the profile of tooth cavity body structure convection cell that the groove on the opposing side periphery forms and repeatedly repeat acting, improved the centrifugal lift of pump of common blade formula.The runner of impeller cover inboard is common blade pump impeller pattern, and the runner that opposing side has similar peripheral pump impeller is installed in the cover plate outside, is similar to the vortex pump structure by forming with cooperating of pump chamber and pump cover.The high-pressure liquid of impeller outlet obtains higher pressure through the repeated multiple times acting back of cover plate outside profile of tooth cavity.
The energy of common blade formula centrifugal pump fluid only derives from the sprue of impeller, and in the present invention, the high-pressure liquid that flows out from the impeller sprue will flow in the composite blading pump chamber of the impeller outside again, process profile of tooth small leaf repeatedly convection cell repeats to do work and obtains higher pressure, thereby has improved centrifugal lift of pump.
Impeller of the present invention passes to energy the fluid that flows out the impeller sprue by impeller cover outside profile of tooth cavity.This exchange of kinetic energy by Three-dimensional Flow is transmitted energy process, can repeat repeatedly in the profile of tooth runner of whole circumference, therefore have the common blade pump can not reach high-lift.The present invention is keeping having improved existing centrifugal lift of pump under the constant prerequisite of physical dimension and flow.
Description of drawings
Fig. 1 is single stage centrifugal pump paddle wheel plane structural representation of the present invention;
Fig. 2 is one-stage centrifugal pump impeller radial cross-section of the present invention;
Fig. 3 is one-stage centrifugal pump impeller schematic perspective view of the present invention;
Fig. 4 is one-stage centrifugal pump structure sectional view of the present invention;
Fig. 5 is single stage centrifugal pump profile of tooth cavity body structure enlarged diagram of the present invention, i.e. the local enlarged diagram of Fig. 4;
Fig. 6 is multistage centrifugal pump paddle wheel plane structural representation of the present invention;
Fig. 7 is multistage centrifugal pump impeller radial cross-section of the present invention;
Fig. 8 is multistage centrifugal pump impeller schematic perspective view of the present invention;
Fig. 9 is multistage centrifugal pump impeller installing cross-sectional schematic of the present invention;
Figure 10 is multistage centrifugal pump profile of tooth cavity body structure enlarged diagram of the present invention, i.e. the local enlarged diagram of Fig. 9.
Among the figure, the 1st, impeller, 1a are the groove teeth, 1b groove, 1c are opposing sides, the 2nd, the pump housing, the 3rd, profile of tooth cavity, the 4th, pump cover, the 5th, deflector.
Embodiment
Below by embodiment the present invention is further described; present embodiment only is used for the present invention is further detailed; but can not be interpreted as limiting the scope of the invention, those skilled in the art can make some nonessential improvement and adjustment belongs to the scope of protection of the invention according to the content of the invention described above.
Embodiment 1
In conjunction with Fig. 1 to Fig. 5.
This example is single stage centrifugal pump, as shown in the figure, centrifugal pump impeller 1 comprises the wheel dish type cover plate that constitutes centrifugal pump impeller 1, one-stage centrifugal pump impeller 1 has two cover plates that are oppositely arranged, cover plate has the installation opposing side 1c corresponding with the pump housing 2 of centrifugal pump, pump cover 4, there are a plurality of groove 1b on the surface of opposing side 1c on the cover plate, and groove 1b arranges symmetrically and evenly around opposing side 1c, and groove 1b forms profile of tooth cavity 3 at the pump housing 2, the pump cover 4 of the outside opening of cover plate radial direction and centrifugal pump.
Groove 1b is arranged on the circumference of wheel dish type cover plate opposing side 1c, and quantity is 24～60.
The maximum circumferential thickness of groove tooth 1a between two adjacent groove 1b is 0.6～1.5 with the ratio of groove 1b axial height, and each groove 1b axial height is 1.1～2 times that 0.4～0.6 times of impeller 1 cover sheet thickness, groove 1b radial length are about axial height.
One-stage centrifugal pump impeller 1 is made of two cover plates that are oppositely arranged, and is main channel between the cover plate, and under rotating centrifugal pressure, water enters pumping chamber from main channel usually, and two cover plates have the opposing side 1c that is rotatably assorted with the pump housing 2 or pump cover 4 respectively, as shown in Figure 4; At the edge of two cover plate opposing side 1c, the present invention is provided with groove 1b, and so-called groove 1b is the shape of outer end opening drawer-like, and as Fig. 1, Fig. 2 and shown in Figure 3, groove 1b evenly arranges at interval at the circumferential edges of cover plate opposing side 1c, and opening is outside; Groove 1b can be cube or other shapes.
At the front and rear cover plate of impeller 1 or only process the groove 1b of profile of tooth in one-sided cover plate outer rim, by forming opening towards the profile of tooth cavity 3 of pumping chamber with cooperating of the pump housing 2 and pump cover 4.The high-pressure liquid that flows out from impeller 1 sprue flows into again in the profile of tooth cavity 3 and obtains higher pressure through repeatedly doing work of profile of tooth groove 1b, thereby has improved centrifugal lift of pump.
The pump housing 2 and pump cover 4 are not limited to the plane with the partial shape that profile of tooth cavity 3 cooperates, and can be processed as arcuate surface, form the cavity of greater room when cooperating with profile of tooth groove 1b.
In conjunction with Fig. 6 to Figure 10.
This example is multistage centrifugal pump, as shown in the figure, centrifugal pump impeller 1 comprises the wheel dish type cover plate that constitutes centrifugal pump impeller 1, multistage centrifugal pump impeller 1 has a cover plate, cover plate has the installation opposing side 1c corresponding with the deflector 5 of centrifugal pump, there are a plurality of groove 1b on the surface of opposing side 1c on the cover plate, and groove 1b arranges symmetrically and evenly around opposing side 1c, and groove 1b forms profile of tooth cavity 3 at the deflector 5 of the outside opening of cover plate radial direction and centrifugal pump.
Groove 1b is arranged on the circumference of wheel dish type cover plate opposing side 1c, and quantity is 24～60.
The maximum circumferential thickness of groove tooth 1a between two adjacent groove 1b is 0.6～1.5 with the ratio of groove 1b axial height, and each groove 1b axial height is 1.1～2 times that 0.4～0.6 times of impeller 1 cover sheet thickness, groove 1b radial length are about axial height.
Multistage centrifugal pump impeller 1 has many groups, and every group of impeller 1 has the back shroud that is rotatably assorted with deflector 5, and under many group impeller 1 rotating centrifugal pressure, water obtains pressurization repeatedly usually, and every group of cover plate has the opposing side 1c that is rotatably assorted with deflector 5 respectively, as shown in Figure 9; At the edge of cover plate opposing side 1c, the present invention is provided with groove 1b, and so-called groove 1b is the shape of outer end opening drawer-like, and as Fig. 6, Fig. 7 and shown in Figure 10, groove 1b evenly arranges at interval at the circumferential edges of cover plate opposing side 1c, and opening is outside; Groove 1b can be cube or other shapes.
The runner of this routine impeller 1 front and rear cover plate inboard is common blade pump impeller pattern, and the back shroud outside processes the groove 1b of profile of tooth, by forming opening towards the profile of tooth cavity 3 of pumping chamber with cooperating of deflector 5.The high-pressure liquid that flows out from impeller 1 sprue flows into again in the profile of tooth cavity 3 and obtains higher pressure through repeatedly doing work of profile of tooth groove 1b, thereby has improved centrifugal lift of pump.
Claims (5)
1. centrifugal pump impeller, comprise the wheel dish type cover plate that constitutes centrifugal pump impeller (1), cover plate has the installation opposing side (1c) corresponding with the pump housing, pump cover or the deflector of centrifugal pump, it is characterized in that: there are a plurality of grooves (1b) on the surface of opposing side on the described cover plate (1c), groove (1b) arranges symmetrically and evenly around opposing side (1c), groove (1b) is at the outside opening of cover plate radial direction, and groove (1b) forms profile of tooth cavity (3) with the pump housing, pump cover or the deflector of centrifugal pump.
2. centrifugal pump impeller according to claim 1 is characterized in that: described groove (1b) is arranged on the circumference of wheel dish type cover plate opposing side (1c), and quantity is 24～60.
3. centrifugal pump impeller according to claim 1 and 2, it is characterized in that: the ratio of the maximum circumferential thickness of groove tooth (1a) between described two adjacent grooves (1b) and groove (1b) axial height is 0.6～1.5, and each groove (1b) axial height is 1.1～2 times that 0.4～0.6 times of impeller (1) cover sheet thickness, groove (1b) radial length are about axial height.
4. centrifugal pump impeller according to claim 3, it is characterized in that: described centrifugal pump is single stage centrifugal pump, and impeller (1) has two cover plates that are oppositely arranged, and every cover plate has the groove (1b) that is arranged on the opposing side (1c) respectively.
5. centrifugal pump impeller according to claim 3, it is characterized in that: described centrifugal pump is multistage centrifugal pump, and impeller (1) has a cover plate, and cover plate has the groove (1b) that is arranged on the opposing side (1c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310163172.6A CN103244456B (en) | 2013-05-06 | 2013-05-06 | A kind of centrifugal pump impeller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310163172.6A CN103244456B (en) | 2013-05-06 | 2013-05-06 | A kind of centrifugal pump impeller |
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| CN103244456A true CN103244456A (en) | 2013-08-14 |
| CN103244456B CN103244456B (en) | 2016-04-13 |
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| CN201310163172.6A Active CN103244456B (en) | 2013-05-06 | 2013-05-06 | A kind of centrifugal pump impeller |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314860A (en) * | 2014-09-24 | 2015-01-28 | 江苏大学 | Impeller for low-specific speed centrifugal pump |
| WO2017034693A1 (en) * | 2015-08-24 | 2017-03-02 | Woodward, Inc. | Centrifugal pump with serrated impeller |
| CN109322842A (en) * | 2018-11-26 | 2019-02-12 | 浙江理工大学 | With front shroud blade and notch without spiral case centrifugal fan and working method |
| CN109899316A (en) * | 2017-12-08 | 2019-06-18 | 张颖 | Accelerate the centrifugal impeller of centrifugal pump |
| CN114810623A (en) * | 2022-04-16 | 2022-07-29 | 江苏大学流体机械温岭研究院 | Vane pump health monitoring and evaluating method and device based on Mahalanobis distance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2087250U (en) * | 1991-03-25 | 1991-10-23 | 何继国 | High effiency self-suction pump |
| CN1071230A (en) * | 1991-09-23 | 1993-04-21 | 卢才美 | Very-high-lift vortex pump |
| CN2268792Y (en) * | 1995-08-04 | 1997-11-26 | 临沂市水泵厂 | Centrifugal water pump impeller |
| US20070122264A1 (en) * | 2005-11-28 | 2007-05-31 | Aisan Kogyo Kabushiki Kaisha | Pump |
| CN203272226U (en) * | 2013-05-06 | 2013-11-06 | 西华大学 | Centrifugal pump impeller |
-
2013
- 2013-05-06 CN CN201310163172.6A patent/CN103244456B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087250U (en) * | 1991-03-25 | 1991-10-23 | 何继国 | High effiency self-suction pump |
| CN1071230A (en) * | 1991-09-23 | 1993-04-21 | 卢才美 | Very-high-lift vortex pump |
| CN2268792Y (en) * | 1995-08-04 | 1997-11-26 | 临沂市水泵厂 | Centrifugal water pump impeller |
| US20070122264A1 (en) * | 2005-11-28 | 2007-05-31 | Aisan Kogyo Kabushiki Kaisha | Pump |
| CN203272226U (en) * | 2013-05-06 | 2013-11-06 | 西华大学 | Centrifugal pump impeller |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314860A (en) * | 2014-09-24 | 2015-01-28 | 江苏大学 | Impeller for low-specific speed centrifugal pump |
| WO2017034693A1 (en) * | 2015-08-24 | 2017-03-02 | Woodward, Inc. | Centrifugal pump with serrated impeller |
| US10907647B2 (en) | 2015-08-24 | 2021-02-02 | Woodward, Inc. | Centrifugal pump with serrated impeller |
| CN109899316A (en) * | 2017-12-08 | 2019-06-18 | 张颖 | Accelerate the centrifugal impeller of centrifugal pump |
| CN109322842A (en) * | 2018-11-26 | 2019-02-12 | 浙江理工大学 | With front shroud blade and notch without spiral case centrifugal fan and working method |
| CN109322842B (en) * | 2018-11-26 | 2024-03-15 | 昆山佰斯拓机械设备有限公司 | Volute-free centrifugal ventilator with front cover plate blades and notches and working method |
| CN114810623A (en) * | 2022-04-16 | 2022-07-29 | 江苏大学流体机械温岭研究院 | Vane pump health monitoring and evaluating method and device based on Mahalanobis distance |
| CN114810623B (en) * | 2022-04-16 | 2023-09-22 | 江苏大学流体机械温岭研究院 | Marsh distance-based vane pump health monitoring and evaluating method and device |
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| CN103244456B (en) | 2016-04-13 |
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