CN204175635U - A kind of Multi-vane type Non-blinding pump and impeller thereof - Google Patents
A kind of Multi-vane type Non-blinding pump and impeller thereof Download PDFInfo
- Publication number
- CN204175635U CN204175635U CN201420282659.6U CN201420282659U CN204175635U CN 204175635 U CN204175635 U CN 204175635U CN 201420282659 U CN201420282659 U CN 201420282659U CN 204175635 U CN204175635 U CN 204175635U
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- CN
- China
- Prior art keywords
- impeller
- pump
- blade
- vane type
- wheel body
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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
- F04D29/2238—Special flow patterns
- F04D29/2244—Free vortex
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a kind of Multi-vane type Non-blinding pump and impeller thereof.It comprises the pump housing, impeller, pump shaft, drive motor.The pump housing is characterised in that: pump inlet diameter is very big import, and impeller is placed in the rear side in pump chamber, and front side is without phyllocyst (3).Impeller comprises blade (1) on wheel body, the wheel shaft at wheel body center and wheel body and back blades.Impeller is half-open Multi-vane type, only has back shroud (4), without front shroud.The utility model blade adopts multiple-blade form, and blade import and export laying angle is all less than 90 ° (usual vortex non-clogging pump blade is less, and its laying angle is 90 °), vane inlet diameter D
jless, pump inlet diameter adopts very big inlet diameter, this kind of composite structure not only reduces vane inlet and impacts and eddy loss, increase the effective work area of blade, raise the efficiency and lift, and major part long fibre, large particle solid not by impeller, directly from entering spiral case (2) without phyllocyst, anti-winding and good without plugging performance.
Description
Technical field
The utility model relates to a kind of Multi-vane type Non-blinding pump and impeller thereof, and particularly one is mainly applicable to conveying and has prehensile long fibre, oarse-grained solid, or the Non-blinding pump impeller containing portion gas in conveying flowing medium.Belong to slurry, sewage transport equipment technical field.
Background technique
At present, at conveying paper pulp, during sewage dirt medium, pump usually causes running blocking as solid impurities such as long plastic optical fibre, bastose, paper pulp fiber and large particles because being mingled with various long fibre in medium, thus affect pump by performance and operational efficiency, reduce the reliability of pump and working life; The fiber be wrapped on impeller not only reduce pump effective area of passage and and result in blockage, also take and often shut down process, maintenance is frequent, thus affects working efficiency and delay industrial production.Therefore, pump impeller realizes without blocking and high-efficiency operation is the key technology being badly in need of at present solving.
Pump in the market paper pulp fiber, sewage dirt pump structure form more, common product has single Double Channel Pump and rotary flow type pump.Single Double Channel Pump is applicable to the fluid carrying large particle, long fibrous materials, Procedure of Single-channel Pump impeller due to the number of blade be 1, its blade can not be arranged symmetrically with, and balance is poor, and during pump operation, noise and vibration is relatively large; Double Channel Pump balance is slightly better than Procedure of Single-channel Pump, but blade is thicker than general centrifugal blade, and anti-entangling is poor, easily results in blockage, cause pump cisco unity malfunction during conveying elongated fibers, even can motor damage.Rotary flow type pump impeller is generally that impeller is held back in the rear pump chamber of spiral case, blade is simple prismatic blade shape, pump inlet diameter is less, impeller outer diameter is narrower to spiral case inlet region, when conveying long fibre, large particle solid dielectric, easily results in blockage, and blade is that the hydraulic loss of prismatic blade type is larger, efficiency is often lower, and during the type pump operation, during large discharge district, power easily overloads and causes motor damage.
Through retrieval, (application number: 201220259153.4), its blade is prismatic blade shape to published patent " a kind of impeller without blocking torque flow pump and without blocking torque flow pump ", and impeller moves back in rear pump chamber, and efficiency is lower, and efficient district easily transships.Pump inlet diameter is less, and more long fibre, large particle solid dielectric enter impeller, causes impeller wearing and tearing to a certain degree and blocking; Published patent " a kind of unshrouded impeller is without blocking macerator pump " (application number: 201120437821.3), it installs the cutter disc for cutting the impurity such as large particle and long fibre in pump inlet place, but this cutter disc device is installed, pump structure becomes complicated, cost increases, during pump operation, cutter disc consumes a part of power, the efficiency of pump, lift and flow is caused to decline, and in pump inlet, cutter disc is installed, pump effective discharge area itself is made to reduce, the passing capacity of pump declines, and causes blocking to a certain degree.
Summary of the invention
For the problems referred to above, the utility model provides a kind of good by performance when carrying long fibre, large particle solid matter, and efficiency is high, the significant Non-blinding pump of energy-saving effect.
In order to solve Problems existing in background technique, the utility model solves the technological scheme that its technical problem adopts: provide a kind of Multi-vane type Non-blinding pump impeller, comprise the blade on wheel body, the wheel shaft at wheel body center and wheel body front and the back blades on the back side, impeller is semi-open type, only there is back shroud, without front shroud; Described number of blade Z value gets 9 ~ 11, and described blade shape is cylindrical, and back blades number is corresponding with impeller blade number, and back blades form is corresponding with blade shape.Width of blade b
2scope is the impeller outlet diameter D of 0.15 ~ 0.2 times
2, vane inlet laying angle β
1scope is 50 ° ~ 70 °, blade exit laying angle β
2scope is 40 ° ~ 50 °, and subtended angle of blade scope is 30 ° ~ 45 °.
Another technological scheme of the utility model: a kind of Multi-vane type Non-blinding pump, comprise the pump housing, the pump housing is provided with water intake and water outlet, the impeller in the pump housing, electric machine rotational axis is fixedly connected with impeller rotating shaft, and impeller is made up of wheel body, back shroud, blade and back blades.Pump inlet is about 1.2 times of general Non-blinding pump import, and long fibre, large particle solid matter major part directly do not enter spiral case by impeller, reaches the effect without blocking.Be (0.13 ~ 0.16) D without phyllocyst width L
2, spiral case inlet diameter D
3for (1.23 ~ 1.28) D
2.Less without phyllocyst width L value, spiral case inlet diameter D
3comparatively large, have larger annular space between impeller outlet to spiral case inlet, not only efficiency, lift are high, anti-entangling, good without plugging performance.
The utility model beneficial effect is, compared with traditional non-clogging impeller structure, pump adopts very big inlet diameter, impeller outlet diameter D
2to spiral case inlet diameter D
3between get higher value, therefore do not affecting under the prerequisite by performance, increase the number of blade, the efficiency of pump and lift not only obtain larger raising, and when carrying elongated fibers, large particle solid anti-entangling and good without plugging performance.
The Multi-vane type non-clogging impeller structure that the utility model provides is simple, easily manufactures, and installation and maintenance are convenient, long fibre, large particle solid major part directly sends into spiral case without impeller, passing ability and anti-Filament-wound Machine performance good, efficiency is high, pump operation is steady, long service life.
Accompanying drawing explanation
Fig. 1 is the three-dimensional string diagram of the utility model Multi-vane type Non-blinding pump spiral case and impeller leading faces
Fig. 2 is the three-dimensional string diagram of the utility model Multi-vane type Non-blinding pump spiral case and impeller reverse side
Fig. 3 is the utility model multiple-blade Non-blinding pump structural representation
Fig. 4 is the utility model multiple-blade Non-blinding pump blade wheel structure schematic diagram
In Fig. 1,1. blade, 2. spiral case, 3. without phyllocyst, 4. back shroud
In Fig. 2,5. back blades, 6. wheel body, 7. axis hole
In Fig. 3,8. pump shaft, 9. motor, 10. axle end caps, 11. pump inlets, 12. pump discharges
In Fig. 4, D
2for impeller outlet diameter, D
jfor vane inlet diameter, b
2for impeller outlet width, θ is subtended angle of blade, β
1for vane inlet laying angle, β
2for blade exit laying angle
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail: these accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model is described in a schematic way.
Fig. 1, Fig. 2 are Multi-vane type Non-blinding pump spiral case and impeller, Fig. 3 is Multi-vane type Non-blinding pump, its mainly comprise blade (1), spiral case (2), without phyllocyst (3), back shroud (4), back blades (5), wheel body (6), axis hole (7), pump shaft (8), motor (9), axle end caps (10), pump inlet (11), pump discharge (12).Impeller is fixed on pump shaft by axle end caps, and pump shaft is connected with drive motor axle, is installed in spiral case, when motor rotates, rotates through pump shaft impeller, can realize slurry, wastewater media or the conveying containing gas medium.
The impeller of the utility model preferred embodiment is semi-open type structure, it is characterized by and only has back shroud (4), and without front shroud, there is back blades (5) at the back side of back shroud.Impeller blade (1) form is cylindrical, and number of blade Z is 9 ~ 11 pieces.Back blades (5) number is corresponding with blade (1) number, and back blades (5) form is corresponding with blade (1) form.Described width of blade b
2scope is the impeller outlet diameter D of 0.15 ~ 0.2 times
2, described vane inlet laying angle β
1scope is 50 ° ~ 70 °, described blade exit laying angle β
2scope is 40 ° ~ 50 °, and described subtended angle of blade θ scope is 30 ° ~ 45 °.Described impeller inlet diameter D
jfor 0.6 ~ 0.8 times of general centrifugal pump.As specific speed n
stime larger, vane inlet laying angle β
1, blade exit laying angle β
2, subtended angle of blade θ gets smaller value.Compared with general prismatic blade shape impeller, not only improve fluid flow state, and efficiency and the lift of pump can be improved further.Blade uses special material, through Overheating Treatment, improves and clashes into and wear-resisting property.
The pump inlet of the utility model preferred embodiment is about 1.2 times of general Non-blinding pump import, is (0.13 ~ 0.16) D without phyllocyst width L
2, spiral case inlet diameter D
3for (1.23 ~ 1.28) D
2.Impeller is not installed and is moved back to rear pump chamber, less without phyllocyst width L value, spiral case inlet diameter D
3comparatively large, have larger annular space between impeller outlet to spiral case inlet, not only efficiency, lift are high, anti-entangling, good without plugging performance.
Preferred embodiment of the present utility model can be used for the conveying containing long fibre (as wood pulp, secondary stock, straw, plastics, rope), solid particle (as wooden unit, unit of plastic etc.) medium, also can be used for the conveying of air containing fluid, be widely used, operate steadily, nothing blocking property, anti-entangling are good, efficiency is high, obvious energy conservation.
It is more than preferred embodiment of the present utility model, but the utility model is not limited to above-described embodiment, relevant staff in the scope not departing from technical requirements of the present utility model, can carry out various change and amendment, but must determine its technical scope according to right.
Claims (5)
1. a Multi-vane type Non-blinding pump impeller, comprise the back blades at wheel body, the wheel shaft at wheel body center, the blade in wheel body front and the wheel body back side, it is characterized in that: described impeller is Multi-vane type, blade shape is cylindrical, and the number of blade is 9 ~ 11, and impeller is half-opened impeller, there is back shroud, without front shroud, there is back blades at the back shroud back side, back blades number and form corresponding with the number of blade and blade shape.
2. a kind of Multi-vane type Non-blinding pump impeller as claimed in claim 1, is characterized in that: subtended angle of blade θ is 30 ° ~ 45 °, vane inlet laying angle β
1get 50 ° ~ 70 °, blade exit laying angle β
2get 40 ° ~ 50 °.
3. a kind of Multi-vane type Non-blinding pump impeller as claimed in claim 1, is characterized in that: impeller inlet diameter D is 0.6 ~ 0.8 times of middle high-specific rotation speed centrifugal pump calculated value, entrance edge of blade and axis being parallel and coplanar.
4. a Multi-vane type Non-blinding pump, comprises the impeller in the pump housing, the pump housing, pump shaft and the rotary main shaft driven by power source, main shaft is fixedly connected with pump shaft, it is characterized in that: described impeller has the structure according to any one of claim 1-3.
5. a kind of Multi-vane type Non-blinding pump as claimed in claim 4, is characterized in that: impeller is placed in the rear side in spiral case, and front side is without phyllocyst, is (0.13 ~ 0.16) D without phyllocyst width L
2, spiral case inlet diameter D
3for (1.23 ~ 1.28) D
2(D
2for impeller outlet diameter).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282659.6U CN204175635U (en) | 2014-05-27 | 2014-05-27 | A kind of Multi-vane type Non-blinding pump and impeller thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282659.6U CN204175635U (en) | 2014-05-27 | 2014-05-27 | A kind of Multi-vane type Non-blinding pump and impeller thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175635U true CN204175635U (en) | 2015-02-25 |
Family
ID=52564446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420282659.6U Expired - Fee Related CN204175635U (en) | 2014-05-27 | 2014-05-27 | A kind of Multi-vane type Non-blinding pump and impeller thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982461A (en) * | 2014-05-27 | 2014-08-13 | 江苏大学 | Multiple blade type non-blocking pump and impeller thereof |
-
2014
- 2014-05-27 CN CN201420282659.6U patent/CN204175635U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982461A (en) * | 2014-05-27 | 2014-08-13 | 江苏大学 | Multiple blade type non-blocking pump and impeller thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20210527 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |