CN107524630A - A kind of open type non-isometric blade impeller - Google Patents
A kind of open type non-isometric blade impeller Download PDFInfo
- Publication number
- CN107524630A CN107524630A CN201710976064.9A CN201710976064A CN107524630A CN 107524630 A CN107524630 A CN 107524630A CN 201710976064 A CN201710976064 A CN 201710976064A CN 107524630 A CN107524630 A CN 107524630A
- Authority
- CN
- China
- Prior art keywords
- blade
- linear leaf
- impeller
- short
- leaf
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002245 particle Substances 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2238—Special flow patterns
- F04D29/2244—Free vortex
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Abstract
The invention provides a kind of open type non-isometric blade 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 and some short blades, linear leaf, secondary linear leaf A, secondary linear leaf B and back blade, impeller is semi-open centrifugal impeller, and blade is non-equidistant blade, and the short blade intersects with linear leaf at vane inlet and rounding off；Time linear leaf is provided between the short blade and the linear leaf and adjacent linear leaf B, the present invention is to solid particle and paper handkerchief of different sizes, long and short fiber etc. has fabulous adaptability, the blocking at impeller inlet such as solid particle can be avoided, 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
The present invention relates to field of fluid machinery, more particularly to a kind of open type non-isometric blade impeller.
Background technology
The effect of impeller is that the mechanical energy of prime mover is directly transmitted into liquid, motor driven wheel rotation, is centrifuged with this
Power is that water is thrown away, and 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 pump by performance and operational efficiency, reduce pump
Reliability and service life.And impeller of pump needs shutdown maintenance to handle when being wound, operating efficiency is influenceed, hinders life
Production.Therefore, the realization of the key technology such as impeller of pump blocking-free performance and Effec-tive Function is particularly important to dredge pump.And traditional blowdown
For pump to increase impeller to sewage impurity by performance, generally use has inlet diameter and the larger single, double stream by area
Road impeller impeller realizes that such impeller is generally especially thick and heavy, and radial load is big, and pump assembly starting and stopping vibration noise is strong, easily causes mouth
The component wears such as ring, bearing, mechanical seal are serious；For equidistant vane type centrifugal pump impeller, although its efficiency is higher, it is logical
Performance and poor to solid particle adaptability of different sizes is crossed, with house refuses such as the paper handkerchief in rain sewage, long fibres
It is more and more, it is easy to hang on blade, the blocking of impeller is caused, influences the stable operation of unit.
The content of the invention
To solve the above mentioned problem of prior art, the invention provides a kind of open type non-isometric blade impeller.Specifically
The technical scheme taken is：
A kind of open type non-isometric blade impeller, mainly include a back shroud (5) and some short blades (1), linear leaf
(2), secondary linear leaf A (3), secondary linear leaf B (4) and back blade (6), it is characterised in that：The impeller is semi-open centrifugal impeller,
Blade is non-equidistant blade, and the short blade (1) intersects with linear leaf (2) at vane inlet and rounding off；The short leaf
Be provided with time linear leaf A (3) between piece (1) and the linear leaf (2), the short blade (1) and adjacent linear leaf B (7) it
Between be provided with time linear leaf B (4)；Between blade of the definition time between linear leaf A (3) and adjacent short blade (1), linear leaf (2)
Away from respectively t1 and t2, the blade pitgh defined between the short blade (1) and the adjacent linear leaf B (7) is t3, described
Blade pitgh between secondary linear leaf B (4) and adjacent linear leaf B (7), short blade (1) is respectively t31 and t32, there is t1<t2<
T3, and t1:T2=t31:T32, the short blade (1), linear leaf (2), secondary linear leaf A (3), secondary linear leaf B (4) are one group
Blade, whole impeller set 2~3 groups of blades, and be centrosymmetric distribution.
In such scheme, the secondary linear leaf A (3) is identical with time linear leaf B (4) geomery, and the inlet side of blade
It is arranged near impeller central diameter, has：D31=(0.4~0.5) D2, its outer blade diameter is equal to impeller outer diameter.
In such scheme, the short blade (1) is equal with the outer blade diameter of linear leaf (2) and is less than impeller outer diameter, and has
D12=D22=(0.88~0.92) D2。
In such scheme, the outlet laying angle of the short blade (1) is more than the outlet laying angle of the linear leaf (2), institute
The subtended angle of blade for stating short blade (1) is less than the subtended angle of blade of the linear leaf (2).
In such scheme, the spacing between the blade meets following formula：
t1:t2:T3=1:2:3.6.
In such scheme, back blade (6) setting is distributed in impeller back and is located on back shroud (5), the leaf of back blade
Piece number is 3~6.
Compared with prior art, the beneficial effects of the invention are as follows：
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, long and short fiber etc. of different sizes, impurity passes through
Function admirable；
2. small whirlpool can be produced at vane inlet, so as to reduce or avoid the long fibres such as solid particle or paper handkerchief to enter in impeller
Blocking at mouthful, increase impeller make impeller be run in nominal situation the through performance of solid particle of different sizes；
3. compared to thick and heavy single, double flow passage impeller, the present invention in non-equidistant blade solid-liquid two-phase blowdown pump impeller not
Only efficiency high and light weight, greatly save the use of material, and because blade is centrosymmetric distribution, have good
Balance, radial load is small, operates steadily, noise and vibration reduction in unit operation and start and stop, so as to substantially increase machinery
The service life of the rotor parts such as sealing, bearing, reliability of the present invention is high and is easy to safeguard.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of axis projection of open type non-isometric blade impeller of one embodiment of the invention；
Fig. 2 is a kind of plan of open type non-isometric blade impeller of one embodiment of the invention；
In figure：1. short blade；2. linear leaf；3. time linear leaf A；4. time linear leaf B；5. back shroud；6. back blade；7. length
Blade B.
Embodiment
The invention provides a kind of open type non-isometric blade impeller, such as Fig. 1,2 be respectively the axle of an embodiment in the present invention
Face perspective view and plan.
A kind of open type non-isometric blade impeller, mainly includes a back shroud 5 and some short blades 1, and linear leaf 2 is secondary
Linear leaf A3, secondary linear leaf B4 and back blade 6, it is characterised in that：The impeller is semi-open centrifugal impeller, and blade is non-equidistant
Blade, the short blade 1 intersects with linear leaf 2 at vane inlet and rounding off；The short blade 1 and the linear leaf 2
Between be provided with time linear leaf A3, time linear leaf B4 is provided between the short blade 1 and adjacent linear leaf B7；Define vice-minister
Blade pitgh between blade A3 and adjacent short blade 1, linear leaf 2 is respectively t1 and t2, define the short blade 1 with it is described
Blade pitgh between adjacent linear leaf B7 is t3, between the secondary linear leaf B (4) and adjacent linear leaf B7, short blade 1
Blade pitgh be respectively t31 and t32, have t1<t2<T3, and t1:T2=t31:T32, the short blade 1, linear leaf 2 are secondary
Linear leaf A3, secondary linear leaf B4 are one group of blade, and whole impeller sets 2~3 groups of blades, and be centrosymmetric distribution.
In such scheme, the secondary linear leaf A3 is identical with time linear leaf B4 geomeries, and the inlet side of blade is set
Near impeller central diameter, have：D31=(0.4~0.5) D2, its outer blade diameter is equal to impeller outer diameter.
In such scheme, the short blade 1 is equal with the outer blade diameter of linear leaf 2 and is less than impeller outer diameter, and has D12=
D22=(0.88~0.92) D2。
In such scheme, the outlet laying angle of the short blade 1 is more than the outlet laying angle of the linear leaf 2, described short
The subtended angle of blade of blade 1 is less than the subtended angle of blade of the linear leaf 2.
In such scheme, the spacing between the blade meets following formula：
t1:t2:T3=1:2:3.6.
In such scheme, the setting of back blade 6 is distributed in impeller back and is located on back shroud 5, the number of blade of back blade
For 3~6.
It should be appreciated that although this specification is described according to each embodiment, not each embodiment only includes one
Individual independent technical scheme, 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.
Those listed above is a series of to describe illustrating only for possible embodiments of the invention in detail,
They simultaneously are not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change
It should be included in the scope of the protection.
Claims (6)
1. a kind of open type non-isometric blade impeller, mainly include a back shroud (5) and some short blades (1), linear leaf
(2), secondary linear leaf A (3), secondary linear leaf B (4) and back blade (6), it is characterised in that：The impeller is semi-open centrifugal impeller,
Blade is non-equidistant blade, and the short blade (1) intersects with linear leaf (2) at vane inlet and rounding off；The short leaf
Be provided with time linear leaf A (3) between piece (1) and the linear leaf (2), the short blade (1) and adjacent linear leaf B (7) it
Between be provided with time linear leaf B (4)；Between blade of the definition time between linear leaf A (3) and adjacent short blade (1), linear leaf (2)
Away from respectively t1 and t2, the blade pitgh defined between the short blade (1) and the adjacent linear leaf B (7) is t3, described
Blade pitgh between secondary linear leaf B (4) and adjacent linear leaf B (7), short blade (1) is respectively t31 and t32, there is t1<t2<
T3, and t1:T2=t31:T32, the short blade (1), linear leaf (2), secondary linear leaf A (3), secondary linear leaf B (4) are one group
Blade, whole impeller set 2~3 groups of blades, and be centrosymmetric distribution.
2. according to a kind of open type non-isometric blade impeller described in claim 1, it is characterised in that：The secondary linear leaf A (3)
It is identical with secondary linear leaf B (4) geomery, and the inlet side of blade is arranged near impeller central diameter, D31=(0.4~0.5) D2,
Its outer blade diameter is equal to impeller outer diameter.
3. according to a kind of open type non-isometric blade impeller described in claim 1, it is characterised in that：The short blade (1) with
The outer blade diameter of linear leaf (2) is equal and is less than impeller outer diameter, and has D12=D22=(0.88~0.92) D2。
4. according to a kind of open type non-isometric blade impeller described in claim 1, it is characterised in that：The short blade (1)
The outlet laying angle that laying angle is more than the linear leaf (2) is exported, the subtended angle of blade of the short blade (1) is less than the linear leaf
(2) subtended angle of blade.
5. according to a kind of open type non-isometric blade impeller described in claim 1, it is characterised in that：Between between the blade
Away from meeting following formula：
t1:t2:T3=1:2:3.6.
6. according to a kind of open type non-isometric blade impeller described in claim 1, it is characterised in that：The back blade (6) sets
Put and be distributed in impeller back and be located on back shroud (5), the number of blade of back blade is 3~6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710976064.9A CN107524630B (en) | 2017-10-19 | 2017-10-19 | Open non-equidistant blade impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710976064.9A CN107524630B (en) | 2017-10-19 | 2017-10-19 | Open non-equidistant blade impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107524630A true CN107524630A (en) | 2017-12-29 |
| CN107524630B CN107524630B (en) | 2024-04-19 |
Family
ID=60684076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710976064.9A Active CN107524630B (en) | 2017-10-19 | 2017-10-19 | Open non-equidistant blade impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524630B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110805572A (en) * | 2019-11-26 | 2020-02-18 | 赵中江 | Anti-blocking impeller of centrifugal pump |
| CN110857701A (en) * | 2018-08-23 | 2020-03-03 | 广东威灵电机制造有限公司 | Blade arrangement method of impeller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007315333A (en) * | 2006-05-29 | 2007-12-06 | Hitachi Plant Technologies Ltd | Centrifugal fluid machine |
| CN101432527A (en) * | 2006-04-25 | 2009-05-13 | Ihc荷兰知识产权有限公司 | Centrifugal pump impeller |
| CN203570667U (en) * | 2013-09-02 | 2014-04-30 | 浙江同泰泵业有限公司 | Semi-open-type high-lift impeller |
| CN105221477A (en) * | 2015-10-16 | 2016-01-06 | 江苏大学 | A kind of asymmetric solid-liquid two-phase flow centrifugal impeller Hydraulic Design Method |
| CN105650032A (en) * | 2016-03-29 | 2016-06-08 | 浙江理工大学 | Pressure expander of centrifugal compressor |
| CN106337833A (en) * | 2015-07-06 | 2017-01-18 | 杭州三花研究院有限公司 | Impeller, centrifugal pump and electric drive pump |
| CN207278565U (en) * | 2017-10-19 | 2018-04-27 | 江苏国泉泵业制造有限公司 | A kind of open type non-isometric blade impeller |
-
2017
- 2017-10-19 CN CN201710976064.9A patent/CN107524630B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101432527A (en) * | 2006-04-25 | 2009-05-13 | Ihc荷兰知识产权有限公司 | Centrifugal pump impeller |
| JP2007315333A (en) * | 2006-05-29 | 2007-12-06 | Hitachi Plant Technologies Ltd | Centrifugal fluid machine |
| CN203570667U (en) * | 2013-09-02 | 2014-04-30 | 浙江同泰泵业有限公司 | Semi-open-type high-lift impeller |
| CN106337833A (en) * | 2015-07-06 | 2017-01-18 | 杭州三花研究院有限公司 | Impeller, centrifugal pump and electric drive pump |
| CN105221477A (en) * | 2015-10-16 | 2016-01-06 | 江苏大学 | A kind of asymmetric solid-liquid two-phase flow centrifugal impeller Hydraulic Design Method |
| CN105650032A (en) * | 2016-03-29 | 2016-06-08 | 浙江理工大学 | Pressure expander of centrifugal compressor |
| CN207278565U (en) * | 2017-10-19 | 2018-04-27 | 江苏国泉泵业制造有限公司 | A kind of open type non-isometric blade impeller |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110857701A (en) * | 2018-08-23 | 2020-03-03 | 广东威灵电机制造有限公司 | Blade arrangement method of impeller |
| CN110805572A (en) * | 2019-11-26 | 2020-02-18 | 赵中江 | Anti-blocking impeller of centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107524630B (en) | 2024-04-19 |
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