CN102200141A - Energy-saving guide vane device for pump - Google Patents
Energy-saving guide vane device for pump Download PDFInfo
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- CN102200141A CN102200141A CN2011101478229A CN201110147822A CN102200141A CN 102200141 A CN102200141 A CN 102200141A CN 2011101478229 A CN2011101478229 A CN 2011101478229A CN 201110147822 A CN201110147822 A CN 201110147822A CN 102200141 A CN102200141 A CN 102200141A
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Abstract
The invention discloses an energy-saving guide vane device for a pump. The device comprises a guide vane chamber (2), a guide vane (3) and a wheel hub (4), wherein the guide vane chamber (2) is connected between the an impellor (1) and an effluent bend pipe (5); the guide vane (3) arranged in the guide vane chamber (2) is provided with a plurality of blades; the guide vane (3) is connected to the wheel hub (4); the blades are nonuniformly arranged on the guide vane (3) along the circumference direction; the intervals among the blades, and the streamlines and placing angles of the blades are all different. The device provided by the invention has the beneficial effects that the smooth malcomformation is overcome, and the device is energy-saving and efficient and is applied widely.
Description
Technical field
The present invention relates to a kind of pump impeller, particularly a kind of energy-conservation vane apparatus.
Background technique
Vane pump is the important component part of pump series products, and its application area in industrial and agricultural production is very extensive, and the electric power of modern electric power industry about 1/3 is used for the drive vane pump.The raising of vane pump working efficiency has direct significance for reducing energy consumption.Based on the long-term and unremitting effort of researcher, the efficient of pump impeller has reached higher level, but the efficient of entire pump device is still not high.This is because the efficient of vane pump device not only depends on the performance of pump impeller, also closely related with the structure of the import and export runner of pump, have only each flow passage components when the whole runner of pump-unit to reach optimum matching relation, the efficient of pump-unit could obtain effectively to improve.
Because the high speed rotating of vane pump impeller, the absolute velocity of impeller outlet all has circumferential speed component, if do not take appropriate measures, the energy of this component correspondence can the runner behind impeller outlet in loss gradually.For reclaiming this part energy, there are two kinds of methods to adopt at present, the one, pumping chamber is set, the 2nd, guide vane (abbreviation stator) is set.For axial-flow pump and mixed flow pump, conventional way is that stator is set, and its effect is that the fluid with impeller outlet collects and guides to rising pipe or to secondary impeller inlet, kinetic energy is become pressure energy, eliminates circumferential speed component.Rotating speed is more little, and the energy of recovery is many more, and the effect of stator is big more, when specific speed reaches 1600, still has the energy more than 5% recyclable.
The vane apparatus that adopts in the fluid machinery of axial-flow pump and mixed flow pump and a lot of other types has following defective at present: vane apparatus is by being formed along the equally distributed leaf grating of circumference, the geometrical shape of every stator is all identical with setting angle, and interlobate interval is also consistent, vane apparatus is arranged between impeller and the Discharging bent-tube, the import of stator is connected with impeller outlet, and the stator outlet is connected with Discharging bent-tube.Because bend pipe is a kind of nonaxisymmetrical flow passage structure, it can have a strong impact on even destroy fully the smooth structure of impeller outlet fiducial axis symmetry.Be based on the smooth axisymmetric supposition of impeller outlet and propose along the equally distributed stator pattern of circumference, smooth and do not match with the impeller outlet of reality, because traditional stator can not adapt to true smoothness, the effect of its recovered energy is had a strong impact on, to smoothness under the far-reaching occasion, this traditional stator is arranged and not only can not be played the effect of reclaiming circumferential speed component, also can worsen pump performance at bend pipe, can only be forced to cancel vane apparatus this moment, causes the huge waste of energy.
Summary of the invention
Defective at existing vane apparatus the invention provides the energy-conservation vane apparatus of a kind of pump.
To achieve these goals, the measure that the present invention taked is:
The energy-conservation vane apparatus of a kind of pump, comprise and lead stator chamber, stator and the wheel hub that is connected between impeller and the Discharging bent-tube, the stator that is arranged on the stator chamber interior is provided with some blades, stator is connected on the wheel hub, blade is along the circumferential direction heterogeneous to be arranged on the stator, the interval between each blade and each blade streamlined and to lay angle all inequality; The side of the blade centralized arrangement of described stator in the stator chamber, observe from the stator outlet port, and make bend pipe water outlet direction be+the x axle direction, the upside of vane apparatus plan view is+the y direction, when impeller turns clockwise, when bend pipe water outlet direction was right side (+x axle direction), the stator centralized arrangement is stator chamber downside (y axle direction) in the vane apparatus plan view.When impeller is rotated counterclockwise, when bend pipe water outlet direction was right side (+x axle direction), the stator centralized arrangement is stator chamber upside (+y axle direction) in the vane apparatus plan view; The number of blade of described stator is 2～10.
Beneficial effect of the present invention: stator is along circumferentially taking different interval to arrange, and each stator blade adopts different streamlined and lay angle, vane apparatus can be overcome the smooth lack of uniformity that nonaxisymmetric structure caused of stream bend pipe: the density of stator riding position determines according to impeller outlet and the actual smooth feature that goes out to flow the bend pipe import, this smooth feature is obtained by computer simulation or prototype experiment, by adopting the different sweeping appearance of rational stator interval and each stator and laying angle, the every blade that can guarantee stator all can be finished recovery fluid circumferential speed component satisfactorily and guide fluid to enter the task of subordinate's runner smoothly, hydraulic loss is effectively controlled, and the energy that pump consumed significantly reduces; By the coordination of energy-conservation vane apparatus and Discharging bent-tube, make the smooth speed of fluid and the pressure distribution of pump discharge reach perfect condition, can further reduce with pipe-line system that pump is connected in fluid resistance losses.In addition, this device not only can be applicable to axial-flow pump and mixed flow pump, also can be applicable to adopt the even vane apparatus of tradition other various fluid machineries as energy recycle device or flow guide device.
Description of drawings
The structure vertical profile schematic representation of Fig. 1, apparatus of the present invention;
The schematic top plan view of Fig. 2, conventional apparatus;
The schematic top plan view of Fig. 3, apparatus of the present invention example-T type vane apparatus;
The schematic top plan view of Fig. 4, apparatus of the present invention example-umbellate form vane apparatus;
Fig. 5, the equidistant umbellate form vane apparatus of apparatus of the present invention example-non-schematic top plan view;
The smoothness figure of winding pipe exit in Fig. 6, the even vane apparatus of tradition;
The smoothness figure of winding pipe exit in Fig. 7, the non-equidistant umbellate form vane apparatus.
Embodiment
The energy-conservation vane apparatus of a kind of pump, comprise and lead stator chamber 2, stator 3 and the wheel hub 4 that is connected between impeller 1 and the Discharging bent-tube 5, the stator 3 that is arranged on 2 inside, stator chamber is provided with some blades, stator 3 is connected on the wheel hub 4, blade is along the circumferential direction heterogeneous to be arranged on the stator 3, the interval between each blade and each blade streamlined and to lay angle all inequality; The side of the blade centralized arrangement of described stator 3 in stator chamber 2, observe from the stator outlet port, and make bend pipe water outlet direction be+the x axle direction, the upside of vane apparatus plan view is+the y direction, when impeller turns clockwise, when bend pipe water outlet direction was right side (+x axle direction), the stator centralized arrangement is stator chamber downside (y axle direction) in the vane apparatus plan view.When impeller is rotated counterclockwise, when bend pipe water outlet direction was right side (+x axle direction), the stator centralized arrangement is stator chamber upside (+y axle direction) in the vane apparatus plan view; The number of blade of described stator 3 is 2～10.
Example one, Fig. 3 are T type vane apparatus, the layout shape of 3 stators such as same " T " word.The advantage of this device is simple in structure, conveniently transform on traditional vane apparatus, but performance has certain gap than other device type.
Example two, Fig. 4 are the umbellate form vane apparatus, and the layout shape of 3 stators is as yunna spiraea, and two stators that are positioned at the side equate with the spacing of intermediate guide blade, are convenient to design and manufacturing.This device forms the bigger blade grid passage of consistency in-y side, helps guiding fluid to enter Discharging bent-tube with less resistance.
Example three, Fig. 5 are non-equidistant umbellate form vane apparatus, it is the further improvement of umbellate form vane apparatus, near the spacing of the stator of bend pipe and intermediate guide blade greater than spacing away from the stator and the intermediate guide blade of bend pipe, this device has taken into full account impeller outlet to the mobile lack of uniformity between the bend pipe import, can form good fluidal texture, can significantly improve the efficient of pump, have the excellent energy-saving property energy.Because non-equidistant umbrella shape vane apparatus has embodied the design philosophy of " non-homogeneous " vane apparatus best, it improves also the most obvious to the performance of pump-unit.
When every stator of above three kinds of examples further adopts different streamline shapes and lays angle, can make the performance of pump-unit reach higher level.
Fig. 6 exists complicated secondary flow and disorderly eddy current for adopting the evenly smooth structure of winding pipe exit during vane apparatus of tradition.The smooth structure of Fig. 7 winding pipe exit when adopting non-equidistant umbellate form vane apparatus, the very harmony of flowing of this structural table free flow body.Can find clearly that from two figure contrast non-equidistant umbrella shape vane apparatus has improved the flowing state of pump discharge effectively, therefore, not only can improve the efficient of pump largely, also significantly reduce the hydraulic loss of whole pipe-line system behind the pump discharge.
Beneficial effect of the present invention: stator is along circumferentially taking different interval to arrange, and each stator blade adopts different streamlined and lay angle, vane apparatus can be overcome the smooth lack of uniformity that nonaxisymmetric structure caused of stream bend pipe: the density of stator riding position determines according to impeller outlet and the actual smooth feature that goes out to flow the bend pipe import, this smooth feature is obtained by computer simulation or prototype experiment, by adopting the different sweeping appearance of rational stator interval and each stator and laying angle, the every blade that can guarantee stator all can be finished recovery fluid circumferential speed component satisfactorily and guide fluid to enter the task of subordinate's runner smoothly, hydraulic loss is effectively controlled, and the energy that pump consumed significantly reduces; By the coordination of energy-conservation vane apparatus and Discharging bent-tube, make the smooth speed of fluid and the pressure distribution of pump discharge reach perfect condition, can further reduce with pipe-line system that pump is connected in fluid resistance losses.In addition, this device not only can be applicable to axial-flow pump and mixed flow pump, also can be applicable to adopt the even vane apparatus of tradition other various fluid machineries as energy recycle device or flow guide device.
Those skilled in the art's simple change and replacement all are within protection scope of the present invention in related domain.
Claims (3)
1. energy-conservation vane apparatus of pump, comprise and lead stator chamber (2), stator (3) and the wheel hub (4) that is connected between impeller (1) and the Discharging bent-tube (5), be arranged on the inner stator (3) in stator chamber (2) and be provided with some blades, stator (3) is connected on the wheel hub (4), it is characterized in that: blade along the circumferential direction anisotropically is arranged on the stator (3), the interval between each blade and each blade streamlined and to lay angle all inequality.
2. the energy-conservation vane apparatus of a kind of pump according to claim 1 is characterized in that: the side of the blade centralized arrangement of described stator (3) in stator chamber (2).
3. the energy-conservation vane apparatus of a kind of pump according to claim 1 and 2 is characterized in that: the number of blade of described stator (3) is 2～10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101478229A CN102200141A (en) | 2011-06-02 | 2011-06-02 | Energy-saving guide vane device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101478229A CN102200141A (en) | 2011-06-02 | 2011-06-02 | Energy-saving guide vane device for pump |
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| CN102200141A true CN102200141A (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101478229A Pending CN102200141A (en) | 2011-06-02 | 2011-06-02 | Energy-saving guide vane device for pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503291A (en) * | 2021-06-09 | 2021-10-15 | 西安交通大学 | Flow regulator for measuring flow field behind bent pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2114044U (en) * | 1991-11-30 | 1992-08-26 | 常德七一机械厂劳动服务公司 | Energy-saving efficient axial-flow pump |
| CN1085993A (en) * | 1993-09-23 | 1994-04-27 | 季海林 | Axial-flow type high-speed paddle pump |
| JPH08284891A (en) * | 1995-04-07 | 1996-10-29 | Kubota Corp | Horizontal shaft pump |
| CN201771784U (en) * | 2009-11-26 | 2011-03-23 | 江苏国泉泵业制造有限公司 | Axial-flow pump with adjustable guide vane |
-
2011
- 2011-06-02 CN CN2011101478229A patent/CN102200141A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2114044U (en) * | 1991-11-30 | 1992-08-26 | 常德七一机械厂劳动服务公司 | Energy-saving efficient axial-flow pump |
| CN1085993A (en) * | 1993-09-23 | 1994-04-27 | 季海林 | Axial-flow type high-speed paddle pump |
| JPH08284891A (en) * | 1995-04-07 | 1996-10-29 | Kubota Corp | Horizontal shaft pump |
| CN201771784U (en) * | 2009-11-26 | 2011-03-23 | 江苏国泉泵业制造有限公司 | Axial-flow pump with adjustable guide vane |
Non-Patent Citations (1)
| Title |
|---|
| 梁开洪等: "化工轴流泵的非均匀导叶布置", 《机械工程学报》, vol. 42, no. 2, 15 September 2006 (2006-09-15), pages 112 - 116 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503291A (en) * | 2021-06-09 | 2021-10-15 | 西安交通大学 | Flow regulator for measuring flow field behind bent pipe |
| CN113503291B (en) * | 2021-06-09 | 2022-08-05 | 西安交通大学 | Flow regulator for measuring flow field behind bent pipe |
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Application publication date: 20110928 |