CN202431593U - Axial-flow pump impeller adopting spiral blades - Google Patents
Axial-flow pump impeller adopting spiral blades Download PDFInfo
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- CN202431593U CN202431593U CN2011204378548U CN201120437854U CN202431593U CN 202431593 U CN202431593 U CN 202431593U CN 2011204378548 U CN2011204378548 U CN 2011204378548U CN 201120437854 U CN201120437854 U CN 201120437854U CN 202431593 U CN202431593 U CN 202431593U
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- axial
- flow pump
- impeller
- blade
- flow
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Abstract
The utility model relates to a main hydraulic component of an axial-flow pump, in particular to an axial-flow pump impeller adopting spiral blades. The axial-flow pump impeller is characterized in that spiral-line-shaped blades instead of wing-shaped blades are adopted for the impeller; the spiral blades adopt large wrap angles, phi is usually equal to 150-700 degrees, and the length of a flow channel is 3-5 times that of a single-flow-channel impeller, so that the flow of medium in the flow channel is effectively restrained, the medium transfers energy gradually and smoothly along the blades, the pressure and the speed of the medium on the surface of the blades are promoted to be uniform, the winding, blocking and damage of impurities are avoided, and a motor can not be damaged generally due to overload.
Description
Technical field
The utility model relates to a kind of main hydraulic part of axial-flow pump, particularly a kind of axial-flow pump impeller that adopts the screw type blade.
Background technique
At present; Known axial-flow pump impeller adopts airfoil fan mostly, and impeller is connected with motor shaft, applies impetus and the convection cell acting at the drive lower blade convection cell of axle; Have characteristics such as flow is big, lift is low, be applicable to industries such as field irrigation, municipal plumbing, sewage treatment.But, adopt axial-flow pump requirement to fed sheet of a media in practical application of this impeller relatively stricter, can only be used to carry clear water or slight sewage, as use the blowdown pumping plant; Water quality is complicated, and silt is many, and foreign material are many, causes impeller blade to twine foreign material easily; Cause outer end mechanical seal distortion, cause mechanical seal to be lost efficacy, the motor water inlet; Pump is frequently reported to the police, and increases maintenance frequency, even burns out motor.
Summary of the invention
For addressing the above problem; The utility model adopts the impeller of screw type blade; Impeller length is 3～5 times of Procedure of Single-channel Pump impeller length, and under the constraint of big cornerite helical blade, medium transmits energy gradually smoothly along blade; Impel the pressure and the speed of blade surface medium to be tending towards evenly, avoid the impurity material to twine, stop up and damage.From the suction eye to the delivery side of pump, all flow section areas are all greater than the Pump Suction Nozzle area; At impeller inlet, blade forms the sickleshaped shape, and this particular structure makes impeller can be screwed into the solid matter that is deposited in pump inlet on one's own initiative, and under the screw propulsion effect of spiral part, forces it to pass through impeller.The impeller of this kind form had not both had current and had impacted during work, again can positive feed, and have the fabulous performance of passing through, thereby avoided the winding and the obstruction of foreign material, improved the axial-flow pump reliability of operation greatly, effectively protected motor.
Realize that above-mentioned purpose adopted technological scheme be:
The blade of impeller no longer adopts aerofoil profile, but adopts spiral line type.The screw type blade adopts uniform pitch helix (also available non-uniform pitch helix) to design, and requires smooth variation, flows to guarantee the smooth-going of medium.Generally be designed to a blade (also can two, three) and blade and become the spiral protrusive type, wheel hub adopts taper.Blade stands on core wheel cone surface with certain inclination angle and spacing, and its structure shape is the similar spiral propulsion device that end radii is little, root radius is big of inlet part, and exit portion is an axial flow.The impeller of this kind unique forms had not both had current and had impacted during work, again can positive feed, and have the fabulous performance of passing through, thereby avoided the winding and the obstruction of foreign material, improved the axial-flow pump reliability of operation greatly.
Above-described a kind of axial-flow pump impeller that adopts the screw type blade, it is by inlet side (1), wheel hub (2), axis hole (3), outlet limit (4), helical blade (5), working surface (6) and the back side (7) composition; It is characterized in that: impeller adopts helical blade (5), the transmission energy level and smooth gradually to medium under its screw propulsion and long constraint.
Described a kind of axial-flow pump impeller that adopts the screw type blade is characterized in that: the subtended angle of blade scope is φ=150 °～700 °.
Described a kind of axial-flow pump impeller that adopts the screw type blade is characterized in that: helical blade is counted Z=1～3.
Described a kind of axial-flow pump impeller that adopts the screw type blade is characterized in that: be applicable to diving spiral axial-flow pump.
The utility model has the advantages that: the screw type blade adopts very big cornerite; Common φ=150 °～700 °, its flow channel length is 3～5 times of single blade impeller, has effectively fettered medium flowing in runner; Medium transmits energy gradually smoothly along blade; Impel the pressure and the speed of blade surface medium to be tending towards evenly, avoid the impurity material to twine, stop up and damage, generally can not make motor overload and burn out.
The beneficial effect of the utility model is: evaded axial-flow pump to strict this shortcoming of medium, enlarged the using scope of axial-flow pump, improved operational reliability, when being used for sewage treatment, need not carry out pretreatment to sewage, saved the great amount of investment and the energy.
The present invention is on probation through the user, and reaction effect is good.
Description of drawings
Fig. 1, Fig. 2 are the axial-flow pump impeller schematic representation and the planimetric maps of one embodiment of the present of invention.
Fig. 1 is among Fig. 2: 1. inlet side, 2. wheel hub, 3. axis hole, 4. outlet limit, 5. helical blade, 6. working surface, the 7. back side.
Embodiment
Fig. 1 and Fig. 2 have confirmed the structural type of impeller in the present embodiment jointly, and it mainly is made up of wheel hub (2) and helical blade (5).Impeller is done high speed rotary motion under the drive of pump shaft; Under the constraint and screw propulsion effect of helical blade (5); Medium continuously gets into helical flow path from sickleshaped inlet side (1); And transmit energy gradually smoothly along blade, and impel the pressure of blade surface medium and speed to be tending towards evenly, throw away from outlet limit (4) along helix direction at last.Thereby accomplished the energy transfer of medium, and avoided the impurity material to curl, stop up and damage, improved the conveyance capacity of impeller.
Be specifying that embodiment was done with Fig. 1 and Fig. 2 more than, but the present invention is not limited to the foregoing description, also comprises other embodiments or variation in the concept of the present invention for the present invention.For example, can enlarge the cornerite of helical blade; Blade not only can adopt a slice, can also adopt double-leaf, three blades etc.; The tapering of wheel hub also can be along with needs are regulated.
Claims (4)
1. axial-flow pump impeller that adopts the screw type blade, it is by inlet side (1), wheel hub (2), axis hole (3), outlet limit (4), helical blade (5), working surface (6) and the back side (7) composition; It is characterized in that: impeller adopts helical blade (5), the transmission energy level and smooth gradually to medium under its screw propulsion and long constraint.
2. a kind of axial-flow pump impeller that adopts the screw type blade according to claim 1 is characterized in that: the subtended angle of blade scope is φ=150 °～700 °.
3. a kind of axial-flow pump impeller of screw type blade that adopts according to claim 2 is characterized in that: helical blade is counted Z=1～3.
4. a kind of axial-flow pump impeller that adopts the screw type blade according to claim 3 is characterized in that: be applicable to diving spiral axial-flow pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204378548U CN202431593U (en) | 2011-11-03 | 2011-11-03 | Axial-flow pump impeller adopting spiral blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204378548U CN202431593U (en) | 2011-11-03 | 2011-11-03 | Axial-flow pump impeller adopting spiral blades |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431593U true CN202431593U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204378548U Expired - Fee Related CN202431593U (en) | 2011-11-03 | 2011-11-03 | Axial-flow pump impeller adopting spiral blades |
Country Status (1)
| Country | Link |
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| CN (1) | CN202431593U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748322A (en) * | 2012-06-29 | 2012-10-24 | 江苏国泉泵业制造有限公司 | Double-vane axial flow pump |
| CN102748300A (en) * | 2012-06-29 | 2012-10-24 | 江苏国泉泵业制造有限公司 | Spiral axial-flow pump |
| CN103016392A (en) * | 2012-12-13 | 2013-04-03 | 哈尔滨电气动力装备有限公司 | Oil impeller for thrust bearing of second-generation reactor coolant pump |
| CN107762966A (en) * | 2017-10-12 | 2018-03-06 | 合肥凯泉电机电泵有限公司 | A kind of design method of high-efficiency helical sweepback axial wheel hydraulic model |
-
2011
- 2011-11-03 CN CN2011204378548U patent/CN202431593U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748322A (en) * | 2012-06-29 | 2012-10-24 | 江苏国泉泵业制造有限公司 | Double-vane axial flow pump |
| CN102748300A (en) * | 2012-06-29 | 2012-10-24 | 江苏国泉泵业制造有限公司 | Spiral axial-flow pump |
| CN103016392A (en) * | 2012-12-13 | 2013-04-03 | 哈尔滨电气动力装备有限公司 | Oil impeller for thrust bearing of second-generation reactor coolant pump |
| CN103016392B (en) * | 2012-12-13 | 2015-05-13 | 哈尔滨电气动力装备有限公司 | Oil impeller for thrust bearing of second-generation reactor coolant pump |
| CN107762966A (en) * | 2017-10-12 | 2018-03-06 | 合肥凯泉电机电泵有限公司 | A kind of design method of high-efficiency helical sweepback axial wheel hydraulic model |
| CN107762966B (en) * | 2017-10-12 | 2019-04-30 | 合肥凯泉电机电泵有限公司 | A kind of design method of high-efficiency helical sweepback axial wheel hydraulic model |
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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: 20120912 Termination date: 20141103 |
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| EXPY | Termination of patent right or utility model |