CN207278564U - A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller - Google Patents
A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller Download PDFInfo
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- CN207278564U CN207278564U CN201721347027.3U CN201721347027U CN207278564U CN 207278564 U CN207278564 U CN 207278564U CN 201721347027 U CN201721347027 U CN 201721347027U CN 207278564 U CN207278564 U CN 207278564U
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- blade
- impeller
- linear leaf
- equidistant
- liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 230000008676 import Effects 0.000 claims abstract description 27
- 239000002245 particle Substances 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract description 7
- 239000000835 fiber Substances 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller, heavy bodied two-phase solid-liquid fluid can be conveyed, maximum weight concentration is conveyed up to 35~55%, mainly include a back shroud (5) and some linear leaf A (1), linear leaf B (2), secondary linear leaf (3), import short blade (4) and back blade (6), it is characterised in that：The impeller is semi-open centrifugal impeller, and blade is non-equidistant blade, and is provided with import short blade；The secondary linear leaf (3) is located between linear leaf A (1) and linear leaf B (2)；The blade exit width b0 of the import short blade is less than impeller outlet width b2, the utility model is to solid particle and paper handkerchief of different sizes, long and short fiber etc. has fabulous adaptability, it can avoid the blocking in wheel hub such as solid particle, increase the through performance of impeller solid particle, impeller is set to be run in nominal situation, and balance is good, stable and reliable operation.
Description
Technical field
Field of fluid machinery is the utility model is related to, more particularly to a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller.
Background technology
The effect of impeller is that the mechanical energy of prime mover is directly transmitted to liquid, and motor impeller is rotated, centrifuged with this
Power is that water is thrown away, these energy are being converted into static pressure by pump case, (are mainly increasing static pressure to increase the static energy of liquid and kinetic energy
Can).
In dredge pump, when pumping sewage dirt medium, because can usually be mingled with medium all size particle, long fibre,
The impurity such as house refuse, so as to easily cause the blockage problem in impeller of pump, influence being pumped by performance and operational efficiency, reduction for pump
Reliability and service life.And impeller of pump needs shutdown maintenance to handle when being wound, work efficiency is seriously affected, is hindered
Delay the development of industrial production and environmental protection work.Therefore, the reality of the key technology such as impeller of pump blocking-free performance and Effec-tive Function
Now to dredge pump it is particularly important that.And traditional dredge pump is usually pumped to increase impeller to sewage impurity by performance with sacrificing
Hydraulic performance be cost, realized using with inlet diameter and the larger single, double flow passage impeller impeller by area, such leaf
Wheel is usually especially thick and heavy, and radial load is big, and pump assembly starting and stopping vibration noise is strong, easily causes the components such as choma, bearing, mechanical seal
Serious wear；For equidistant vane type centrifugal pump impeller, although its efficiency is higher, it is by performance and to of different sizes
Solid particle adaptability is poor, easy to hang on blade as the house refuses such as the paper handkerchief in rain sewage, long fibre are more and more,
The blocking of impeller is caused, influences the stable operation of unit.
The content of the invention
To solve the above problem of prior art, the utility model provides a kind of non-equidistant blade solid-liquid two-phase row
Dirty impeller of pump.The technical solution specifically taken is：
A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller, mainly includes a back shroud (5) and some linear leaf A
(1), linear leaf B (2), secondary linear leaf (3), import short blade (4) and back blade (6), it is characterised in that：The impeller is half-open
Formula centrifugal impeller, blade are non-equidistant blade, and it is t1 to define linear leaf A (1) and the blade pitgh of adjacent secondary linear leaf (3), long
The blade pitgh of blade B (2) and adjacent secondary linear leaf (3) is t2, linear leaf A (1) and the blade pitgh of adjacent linear leaf B1 (7)
For t3, there is t1<t2<t3；The import short blade (4) is arranged at impeller inlet, positioned at impeller hub and impeller inlet diameter
Between；The secondary linear leaf (3) is located between linear leaf A (1) and linear leaf B (2)；The back blade (6) is arranged at the impeller back of the body
Portion is located on back shroud (5)；The blade exit width b0 of the import short blade (4) is less than impeller outlet width b2.
Further, the number of blade of the import short blade (4) is 2, and be centrosymmetric distribution, the import short blade
(4) outside diameter is not more than the inlet diameter of impeller.
Further, the linear leaf A (1) is connected with the inlet side of linear leaf B (2) at impeller hub, described
The outlet laying angle of linear leaf A (1) is more than the outlet laying angle of the linear leaf B (2), the subtended angle of blade of the linear leaf A (1)
Less than the subtended angle of blade of the linear leaf B (2).
Further, the spacing between the blade meets following formula：t1:t2:T3=1:2:3.5.
Further, the vane inlet diameter of the secondary linear leaf (3) is more bigger than the outer blade diameter of import short blade (4),
For 1.05~1.15 times of import short blade (4) blade exit outside diameter, the outlet outside diameter and impeller outer diameter of the secondary linear leaf (3)
It is equal.
Further, the blade exit width b0 and impeller outlet width b2 of the import short blade meet following formula relation：
B0=(0.4~0.65) b2.
The beneficial effects of the utility model are：
1. impeller can convey heavy bodied two-phase solid-liquid fluid, conveying maximum weight concentration up to 35~55%, adopt by impeller
With non-equidistant blade, there is fabulous adaptability to solid particle and paper handkerchief of different sizes, long and short fiber etc.；
2. being provided with import short blade between impeller hub and impeller inlet diameter, short blade is rotated in entrance generation
Small whirlpool, so that the blocking in wheel hub such as solid particle is avoided, permeability of the increase impeller to solid particle of different sizes
Can, impeller is run in nominal situation；
3. compared to thick and heavy single, double flow passage impeller, the non-equidistant blade solid-liquid two-phase dredge pump leaf in the utility model
Not only efficient but also light weight is taken turns, is greatly saved the use of material, and since blade is centrosymmetric distribution, with very
Good balance, radial load is small, operates steadily, noise and vibration reduction in unit operation and start and stop, so as to substantially increase
The service life of the rotor parts such as mechanical seal, bearing.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of axis projection of non-equidistant blade solid-liquid two-phase blowdown pump impeller of one embodiment of the utility model；
Fig. 2 is a kind of plan of non-equidistant blade solid-liquid two-phase blowdown pump impeller of one embodiment of the utility model；
In figure：1. linear leaf A；2. linear leaf B；3. time linear leaf；4. import short blade；5. back shroud；6. back blade；7.
Linear leaf B1.
Embodiment
The utility model provides a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller, and such as Fig. 1,2 be respectively this practicality
The axis projection of an embodiment and plan in new.
A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller, mainly includes a back shroud 5 and some linear leaf A1,
Linear leaf B2, secondary linear leaf 3, import short blade 4 and back blade 6, it is characterised in that：The impeller is semi-open centrifugal impeller,
Blade is non-equidistant blade, and the blade pitgh for defining linear leaf A1 and adjacent secondary linear leaf 3 is t1, linear leaf B2 and adjacent vice-minister
The blade pitgh of blade 3 is that the blade pitgh of t2, linear leaf A1 and adjacent linear leaf B17 are t3, there is t1<t2<t3；The import
Short blade 4 is arranged at impeller inlet, between impeller hub and impeller inlet diameter；The secondary linear leaf 3, which is located at, to come into leaves
Between piece A1 and linear leaf B2；The back blade 6 is arranged at impeller back and is located on back shroud 5；The leaf of the import short blade 4
Piece exit width b0 is less than impeller outlet width b2.
Further, the number of blade of the import short blade 4 is 2, and be centrosymmetric distribution, the import short blade 4
Outside diameter is not more than the inlet diameter of impeller.
Further, the linear leaf A1 is connected with the inlet side of linear leaf B2 at impeller hub, described to come into leaves
The outlet laying angle of piece A1 is more than the outlet laying angle of the linear leaf B2, and the subtended angle of blade of the linear leaf A1 is less than the length
The subtended angle of blade of blade B2.
Further, the spacing between the blade meets following formula：t1:t2:T3=1:2:3.5.
Further, the secondary linear leaf) vane inlet diameter it is more bigger than the outer blade diameter of import short blade 4, be into
1.05~1.15 times of mouth 4 blade exit outside diameter of short blade, the outlet outside diameter of the secondary linear leaf 3 is equal with impeller outer diameter.
Further, the blade exit width b0 and impeller outlet width b2 of the import short blade meet following formula relation：
B0=(0.4~0.65) b2.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment only includes one
A independent technical solution, this narrating mode of specification is only that those skilled in the art will should say for clarity
Bright book is as an entirety, and the technical solutions in the various embodiments may also be suitably combined, and forming those skilled in the art can be with
The other embodiment of understanding.
The a series of detailed description of those listed above is only for the specific of the possible embodiments of the utility model
Illustrate, they simultaneously be not used to limitation the scope of protection of the utility model, it is all without departing from the utility model skill spirit made etc.
Effect embodiment or change should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller, mainly includes a back shroud (5) and some linear leaf A
(1), linear leaf B (2), secondary linear leaf (3), import short blade (4) and back blade (6), it is characterised in that：The impeller is half-open
Formula centrifugal impeller, blade are non-equidistant blade, and it is t1 to define linear leaf A (1) and the blade pitgh of adjacent secondary linear leaf (3), long
The blade pitgh of blade B (2) and adjacent secondary linear leaf (3) is t2, linear leaf A (1) and the blade pitgh of adjacent linear leaf B1 (7)
For t3, there is t1<t2<t3；The import short blade (4) is arranged at impeller inlet, positioned at impeller hub and impeller inlet diameter
Between；The secondary linear leaf (3) is located between linear leaf A (1) and linear leaf B (2)；The back blade (6) is arranged at the impeller back of the body
Portion is located on back shroud (5)；The blade exit width b0 of the import short blade (4) is less than impeller outlet width b2.
2. according to a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller described in claim 1, it is characterised in that：It is described into
The number of blade of mouth short blade (4) is 2, and be centrosymmetric distribution, and the outside diameter of the import short blade (4) is not more than the import of impeller
Diameter.
3. according to a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller described in claim 1, it is characterised in that：The length
Blade A (1) is connected with the inlet side of linear leaf B (2) at impeller hub, and the outlet laying angle of the linear leaf A (1) is big
In the outlet laying angle of the linear leaf B (2), the subtended angle of blade of the linear leaf A (1) is less than the blade of the linear leaf B (2)
Cornerite.
4. according to a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller described in claim 1, it is characterised in that：The leaf
Spacing between piece meets following formula：
t1:t2:T3=1:2:3.5.
5. according to a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller described in claim 1, it is characterised in that：Described time
The vane inlet diameter of linear leaf (3) is more bigger than the outer blade diameter of import short blade (4), is import short blade (4) blade exit
1.05~1.15 times of outside diameter, the outlet outside diameter of the secondary linear leaf (3) are equal with impeller outer diameter.
6. according to a kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller described in claim 1, it is characterised in that it is described into
The blade exit width b0 and impeller outlet width b2 of mouth short blade meet following formula relation：
B0=(0.4~0.65) b2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347027.3U CN207278564U (en) | 2017-10-19 | 2017-10-19 | A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721347027.3U CN207278564U (en) | 2017-10-19 | 2017-10-19 | A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278564U true CN207278564U (en) | 2018-04-27 |
Family
ID=61979660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721347027.3U Expired - Fee Related CN207278564U (en) | 2017-10-19 | 2017-10-19 | A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller |
Country Status (1)
| Country | Link |
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| CN (1) | CN207278564U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503979A (en) * | 2017-10-19 | 2017-12-22 | 江苏国泉泵业制造有限公司 | A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller |
| CN109630472A (en) * | 2018-11-29 | 2019-04-16 | 中国农业大学 | The centrifugal pump of suppression cavitation surge |
| WO2019232878A1 (en) * | 2018-06-06 | 2019-12-12 | 江苏大学 | Semi-open centrifugal pump impeller and design optimization method therefor |
-
2017
- 2017-10-19 CN CN201721347027.3U patent/CN207278564U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503979A (en) * | 2017-10-19 | 2017-12-22 | 江苏国泉泵业制造有限公司 | A kind of non-equidistant blade solid-liquid two-phase blowdown pump impeller |
| CN107503979B (en) * | 2017-10-19 | 2024-04-19 | 江苏国泉泵业制造有限公司 | Non-equidistant blade solid-liquid two-phase sewage pump impeller |
| WO2019232878A1 (en) * | 2018-06-06 | 2019-12-12 | 江苏大学 | Semi-open centrifugal pump impeller and design optimization method therefor |
| US11525454B2 (en) | 2018-06-06 | 2022-12-13 | Jiangsu University | Semi-open centrifugal pump impeller and its optimization design |
| CN109630472A (en) * | 2018-11-29 | 2019-04-16 | 中国农业大学 | The centrifugal pump of suppression cavitation surge |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20191019 |
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| CF01 | Termination of patent right due to non-payment of annual fee |