CN209180107U - A kind of vortex pump impeller - Google Patents
A kind of vortex pump impeller Download PDFInfo
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- CN209180107U CN209180107U CN201821799764.1U CN201821799764U CN209180107U CN 209180107 U CN209180107 U CN 209180107U CN 201821799764 U CN201821799764 U CN 201821799764U CN 209180107 U CN209180107 U CN 209180107U
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- repairing type
- leaf top
- back side
- working face
- blade
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Abstract
A kind of vortex pump impeller, the impeller includes blade, repairing type processing is carried out at the leaf top of each blade, the blade is integrally in approximate sickle, its circumferential profile is by prismatic blade working face, the prismatic blade back side, repairing type working face leaf top and repairing type back side leaf top girth at, the repairing type working face leaf top and repairing type back side Ye Dingwei curved surface, the lower end on the repairing type working face leaf top connects with the upper end fairing of prismatic blade working face, the lower end on the repairing type back side leaf top connects with the upper end fairing at the prismatic blade back side, the upper end on repairing type working face leaf top connects with the upper end on repairing type back side leaf top.The utility model provides a kind of vortex pump impeller, improves fluidal texture at peripheral pump leaf top, improves impeller anti-cavitation performance, reduces clearance leakage of blade tip loss, makes it with more the utility value in industry.
Description
Technical field
The utility model relates to pump technical field, in particular to a kind of vortex pump impeller belongs to field of fluid machinery.
Background technique
Peripheral pump is a kind of Low Specific Speed Blade pump, because its lift is high, flow is small, it is at low cost, simple and compact for structure, be easy to
Processing has many advantages, such as that self-suction function and gas-liquid mix transmission function, is widely used in chemical industry, fire-fighting, resident living water, instrument instrument
The industries such as table, hydraulic drive, aerospace and medical instrument.
Peripheral pump is mainly made of pump case and impeller.Impeller outer edge part radially evenly distributed multiple radial blades,
Lobe numbers up to tens.Peripheral pump accelerates fluid pressurized by the momentum-exchange in impeller and runner, i.e., often
Secondary reflux movement can all cause reflux to hit with flowpath pressure stream, generated in flow region a large amount of longitudinal direction vortex with
Radial vortex.The biggish pressure difference in blade two sides leads to that undercurrent occurs in blade tip clearance, generates volumetric loss, and undercurrent can also be with
Longitudinal, radial vortex mutually blends, and leads to secondary flow increasingly complex at leaf top.This specific structure bring reflux, two
It phenomena such as secondary stream, not only will be greatly reduced the efficiency of impeller, but also be easy to happen cavitation, brought to the operation of pump very important
Loss.Therefore, the efficiency of peripheral pump is very low, usually only 20%-40%.
Summary of the invention
In order to overcome the clearance leakage of blade tip of existing peripheral pump to lose larger, the lower deficiency of impeller anti-cavitation performance, this
Utility model provides a kind of vortex pump impeller, improves fluidal texture at peripheral pump leaf top, improves impeller anti-cavitation performance, reduces
Clearance leakage of blade tip loss, makes it with more the utility value in industry.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of vortex pump impeller, the impeller include blade, and repairing type processing is carried out at the leaf top of each blade, described
Blade be integrally in approximate sickle, circumferential profile is by prismatic blade working face, the prismatic blade back side, repairing type working face Ye Ding and repairs
Type back side leaf top girth at, the repairing type working face leaf top and repairing type back side Ye Dingwei curved surface, the repairing type working face leaf top
Lower end connect with the upper end fairing of prismatic blade working face, the upper end light of the lower end on the repairing type back side leaf top and the prismatic blade back side
Along connecting, the upper end on repairing type working face leaf top connects with the upper end on repairing type back side leaf top.
Further, the impeller further includes front flow guiding plate, and the front flow guiding plate exterior rim is located at middle part of blade position.
Further, the handover side on the repairing type working face leaf top and repairing type back side leaf top is located at the two of prismatic blade thickness
Times width position.
Further, the curvature γ on the repairing type working face leaf top1Than the curvature γ on the repairing type back side leaf top2Greatly.
Preferably, the curvature γ on the repairing type working face leaf top1With the curvature γ on the repairing type back side leaf top2Meet following
Formula: γ1=K1γ2, wherein K1For proportionality coefficient, value 1.35-1.75, γ1And γ2Unit be mm-1。
The curvature γ on the repairing type working face leaf top1With the curvature γ on the repairing type back side leaf top2Along vane inlet to out
Linear increase is presented in the direction of mouth, and the curvature on leaf top is 1.2-1.3 times of exit at vane inlet.
The exterior rim of the front flow guiding plate is d away from hub centre line1, vortex pump impeller exterior rim is d away from hub centre line2,
And meet following formula: d2=K2d1, wherein K2For proportionality coefficient, value 1.15-1.25, d1And d2Unit be mm-1。
The junction of the repairing type working face and the repairing type back side carries out round corner treatment.
Compared with prior art, the beneficial effects of the utility model are as follows: the vortex-pump vane of the utility model, right
After carrying out deburring processing at leaf top, it can effectively weaken vortex pump impeller jet stream tail region, inhibit the separation of flow of suction surface, reduce
The intensity of Gap cirele, reduction jet stream tail mutually blends and the flow regime across the complexity such as blades flows；And blade and blade top is repaired
Type processing convection current body forms guide functions, increases effective runner volume, so that fluid flowing is more uniform, more stable,
It reduces entropy to increase, increases the effect of impeller, improve the vortex efficiency of pump, avoid the waste of energy.
Detailed description of the invention
Fig. 1 is vortex pump impeller structural schematic diagram described in the utility model embodiment；
Fig. 2 is vortex pump impeller front view described in the utility model embodiment；
Fig. 3 is vortex pump impeller sectional view described in the utility model embodiment；
Fig. 4 is vortex-pump vane sectional view described in the utility model embodiment.
Wherein: 1, impeller；2, front flow guiding plate；3, blade；31, prismatic blade working face；32, the prismatic blade back side；33, repairing type work
Make face Ye Ding；34, repairing type back side Ye Ding.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
Referring to Fig.1~Fig. 4, a kind of vortex pump impeller, the impeller include blade 3, at the leaf top of each blade into
The processing of row repairing type, the blade is integrally in approximate sickle, and circumferential profile is by prismatic blade working face 31, the prismatic blade back side
32, repairing type working face leaf top 33 and repairing type back side leaf top 34 surround, the repairing type working face leaf top 33 and repairing type back side Ye Ding
34 be curved surface, and the lower end on the repairing type working face leaf top 33 connects with the upper end fairing of prismatic blade working face 31, the repairing type
The lower end on back side leaf top 34 connects with the upper end fairing at the prismatic blade back side 32, the upper end and the repairing type back side on repairing type working face leaf top 33
The upper end on leaf top 34 connects.
Further, the impeller further includes front flow guiding plate 2, and 2 exterior rim of front flow guiding plate is located at middle part of blade position.
Further, the handover side on the repairing type working face leaf top 33 and repairing type back side leaf top 34 is located at prismatic blade thickness
Twice of width position.
Further, the curvature γ on the repairing type working face leaf top 331Than the curvature γ on the repairing type back side leaf top 342Greatly.
Preferably, the curvature γ on the repairing type working face leaf top 331With the curvature γ on the repairing type back side leaf top 342Meet
Following formula: γ1=K1γ2, wherein K1For proportionality coefficient, value 1.35-1.75, γ1And γ2Unit be mm-1。
The curvature γ on the repairing type working face leaf top 331With the curvature γ on the repairing type back side leaf top 342Along vane inlet
Linear increase is presented to the direction of outlet, the curvature on leaf top is 1.2-1.3 times of exit at vane inlet.
The exterior rim of the front flow guiding plate 2 is d away from hub centre line1, vortex pump impeller exterior rim is away from hub centre line
d2, and meet following formula: d2=K2d1, wherein K2For proportionality coefficient, value 1.15-1.25, d1And d2Unit be mm-1。
The junction of the repairing type working face and the repairing type back side carries out round corner treatment.
The vortex-pump vane 1 of the present embodiment carries out repairing type processing, the impeller at double shrouded wheel prismatic blade leaf top
1 includes tens blades 3.
By the parameters γ determined in all of above formula1、γ2、d1、d2、K1、K2Pass through optimal setting, guarantees
Repairing type blade can more effectively increase runner volume, inhibit tip leakage vortex, improve fluid flow stability and efficiency.
The vortex-pump vane repairing type of the utility model can effectively obscure 1 jet stream tail region of vortex pump impeller,
The separation of flow for inhibiting suction surface reduces the formation of Gap cirele, and reduction jet stream tail mutually blends and the stream across the complexity such as blades flows
Dynamic state；And repairing type processing convection current body in blade and blade top forms guide functions, largely reduces the running noises of pump；
Effective runner volume is increased, so that fluid flowing is more uniform, more stable, entropy is reduced and increases, increase the effect of impeller 1, mention
The high vortex efficiency of pump, avoids the waste of energy.
It will appreciated by the skilled person that the foregoing is merely the preferred embodiments of utility model, and do not have to
In limitation utility model, although utility model is described in detail referring to previous examples, for those skilled in the art
Member for, can still modify to the technical solution of aforementioned each case history, or to part of technical characteristic into
Row equivalent replacement.With within principle, modification, equivalent replacement for being made etc. should be included in practical new all spirit in utility model
Within the protection scope of type.
Claims (8)
1. a kind of vortex pump impeller, the impeller includes blade, it is characterised in that: carries out repairing type at the leaf top of each blade
Processing, the blade are integrally in approximate sickle, and circumferential profile is worked by prismatic blade working face, the prismatic blade back side, repairing type
Face leaf top and repairing type back side leaf top girth at, the repairing type working face leaf top and repairing type back side Ye Dingwei curved surface, the repairing type
The lower end on working face leaf top connects with the upper end fairing of prismatic blade working face, and the lower end on the repairing type back side leaf top and prismatic blade are carried on the back
The upper end fairing in face connects, and the upper end on repairing type working face leaf top connects with the upper end on repairing type back side leaf top.
2. a kind of vortex pump impeller as described in claim 1, it is characterised in that: the impeller further includes front flow guiding plate, described
Front flow guiding plate exterior rim is located at middle part of blade position.
3. a kind of vortex pump impeller as claimed in claim 1 or 2, it is characterised in that: the repairing type working face Ye Ding and repair
The handover side on type back side leaf top is located at twice of width position of prismatic blade thickness.
4. a kind of vortex pump impeller as claimed in claim 1 or 2, it is characterised in that: the curvature on the repairing type working face leaf top
γ1Than the curvature γ on the repairing type back side leaf top2Greatly.
5. a kind of vortex pump impeller as claimed in claim 4, it is characterised in that: the curvature γ on the repairing type working face leaf top1With
The curvature γ on the repairing type back side leaf top2Meet following formula: γ1=K1γ2, wherein K1For proportionality coefficient, value 1.35-
1.75 γ1And γ2Unit be mm-1。
6. a kind of vortex pump impeller as claimed in claim 4, it is characterised in that: the curvature γ on the repairing type working face leaf top1With
The curvature γ on the repairing type back side leaf top2Linear increase, leaf top at vane inlet is presented along the direction of vane inlet to outlet
Curvature be 1.2-1.3 times of exit.
7. a kind of vortex pump impeller as claimed in claim 2, it is characterised in that: the exterior rim of the front flow guiding plate is away from wheel hub
Heart line is d1, vortex pump impeller exterior rim is d away from hub centre line2, and meet following formula: d2=K2d1, wherein K2For ratio
Coefficient, value 1.15-1.25, d1And d2Unit be mm-1。
8. a kind of vortex pump impeller as claimed in claim 1 or 2, it is characterised in that: the repairing type working face and repairing type is carried on the back
The junction in face carries out round corner treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821799764.1U CN209180107U (en) | 2018-11-02 | 2018-11-02 | A kind of vortex pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821799764.1U CN209180107U (en) | 2018-11-02 | 2018-11-02 | A kind of vortex pump impeller |
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| Publication Number | Publication Date |
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| CN209180107U true CN209180107U (en) | 2019-07-30 |
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| CN201821799764.1U Active CN209180107U (en) | 2018-11-02 | 2018-11-02 | A kind of vortex pump impeller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322850A (en) * | 2018-11-02 | 2019-02-12 | 浙江工业大学 | A kind of vortex pump impeller |
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2018
- 2018-11-02 CN CN201821799764.1U patent/CN209180107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322850A (en) * | 2018-11-02 | 2019-02-12 | 浙江工业大学 | A kind of vortex pump impeller |
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