CN204878074U - Stator blade of back stator sweepforward of axial compressor pump station - Google Patents
Stator blade of back stator sweepforward of axial compressor pump station Download PDFInfo
- Publication number
- CN204878074U CN204878074U CN201520607839.1U CN201520607839U CN204878074U CN 204878074 U CN204878074 U CN 204878074U CN 201520607839 U CN201520607839 U CN 201520607839U CN 204878074 U CN204878074 U CN 204878074U
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- stator blade
- sweepforward
- stator
- pump station
- rim
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- Expired - Fee Related
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Abstract
The utility model relates to a stator blade of back stator sweepforward of axial compressor pump station belongs to water conservancy power engineering design technical field, including the fixed stator blade that sets up between hub and rim, stator blade and rim junction outer fringe are for stator blade and hub junction inner edge sweepforward 16. The rotation angle of stator blade sweepforward presses the linear change. The stator blade of sweepforward 16, stator hub wing section is unchangeable promptly, and rim wing section counter -clockwise turning 16, and the anticlockwise rotation angle of middle wing section presses the linear change.
Description
Technical field
The utility model relates to a kind of stator blade of rear guide vane sweepforward of Axial Flow Pump Station, belongs to water conservancy energetics design field.
Background technique
The object that axial-flow pump arranges stator is the circular rector in order to eliminate impeller outlet current, and the speed of current can be converted to pressure energy.South water to north Large Axial Flow Pump Station engineering, in order to better obtain pump performance, is all provided with exit guide vane.At present for the performance study of axial-flow pump with or without stator, result of study unanimously shows there is stator than during without stator, and axial flow pump performance is more excellent.Due to stator simplicity of design, the rear guide vane of current Large Axial Flow Pump Station is all straight stator, and this stator can reclaim part energy, under design conditions performance still can, once it is serious to enter the back side separation of flow of off-design behaviour stator, and can not maximized recovery circular rector.When the phenomenon of the separation of flow is simultaneously serious, vibration aggravation, affects the safe and stable operation of unit.
Model utility content
The utility model object is for above-mentioned prior art Problems existing, the problem that a kind of back side separation of flow that effectively can improve Diffusion Vanes of Axial Pumps is serious is provided, simultaneously can the stator blade of rear guide vane sweepforward of Axial Flow Pump Station of maximized recovery impeller outlet velocity circulation.
The technical solution of the utility model is, a kind of stator blade of rear guide vane sweepforward of Axial Flow Pump Station, comprise the stator blade be fixedly installed between wheel hub and wheel rim, stator blade and wheel rim joint outer rim are relative to stator blade and wheel hub joint inner edge sweepforward 16 °.The angle of swing of stator blade sweepforward linearly changes.The stator blade of described sweepforward 16 °, namely stator wheel hub aerofoil profile is constant, and wheel rim aerofoil profile is rotated counterclockwise 16 °, and middle aerofoil profile rotated counterclockwise by angle linearly changes.
The utility model is rational in infrastructure simply, the manufacturing is easy, and using effect is good.Axial-flow pump impeller outlet stream is disorderly, and fluidised form is complicated, arranges stator blade at the impeller outlet of axial-flow pump, can be good at speed to be converted to pressure energy, reclaim circular rector, enable simultaneously current comparatively smooth-going go out stream, reduce pipeline hydraulic loss, improve the pump assembly efficiency of axial-flow pump.In the utility model, it is sweepforward 16 ° by stator blade design, separation of flow phenomenon in the stator back side is made to alleviate a lot, axial-flow pump device efficiency obtains significant raising, well improves the problem that axial-flow pump exit guide vane is serious in the back separation of flow of off-design behaviour lower blade, affect axial-flow pump device efficiency.Further raising pump assembly efficiency, can reduce unit operation noise simultaneously, improves Economy and the Security of pumping station operation.
Along with the construction of South-to-North Water Transfer Project and the enforcement of national large pumping station technical innovation, there are up to a hundred pumping plants to need to renovate altogether, and change the stator blade of sweepforward 16 °, larger economic benefit and social benefit will be obtained.
Accompanying drawing explanation
Fig. 1 is the stator blade structure schematic diagram of the utility model sweepforward 16 °.
Fig. 2 be the stator blades installation of the utility model sweepforward 16 ° on wheel hub time overall structure schematic diagram.
In figure: 1 stator blade, 2 wheel hubs.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of stator blade of rear guide vane sweepforward of Axial Flow Pump Station, comprise the stator blade 1 be fixedly installed between wheel hub 2 and wheel rim, stator blade 1 and wheel rim joint outer rim are relative to stator blade 1 and wheel hub 2 joint inner edge sweepforward 16 °, and the angle of swing of stator blade 1 sweepforward linearly changes.
The stator blade 1 of described sweepforward 16 °, namely stator wheel hub aerofoil profile is constant, and wheel rim aerofoil profile is rotated counterclockwise 16 °, and middle aerofoil profile rotated counterclockwise by angle linearly changes.
According to axial-flow pump impeller size, numerical control bed mills out stator blade pattern, according to pattern size, at numerical control machining center, sweepforward stator blade is processed, manufactured.The stator blade 1 of sweepforward 16 ° can be good at improving the serious situation of the stator back side separation of flow, better reclaims circular rector.
Claims (2)
1. the stator blade of the rear guide vane sweepforward of an Axial Flow Pump Station, comprise the stator blade (1) be fixedly installed between wheel hub (2) and wheel rim, it is characterized in that, described stator blade (1) and wheel rim joint outer rim are relative to stator blade (1) and wheel hub (2) inner edge, joint sweepforward 16 °.
2. the stator blade of the rear guide vane sweepforward of a kind of Axial Flow Pump Station according to claim 1, is characterized in that, the angle of swing of described stator blade (1) sweepforward linearly changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607839.1U CN204878074U (en) | 2015-08-13 | 2015-08-13 | Stator blade of back stator sweepforward of axial compressor pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607839.1U CN204878074U (en) | 2015-08-13 | 2015-08-13 | Stator blade of back stator sweepforward of axial compressor pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878074U true CN204878074U (en) | 2015-12-16 |
Family
ID=54822451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520607839.1U Expired - Fee Related CN204878074U (en) | 2015-08-13 | 2015-08-13 | Stator blade of back stator sweepforward of axial compressor pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878074U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499669A (en) * | 2016-10-28 | 2017-03-15 | 扬州大学 | Water pump using flexible stator |
| CN111255743A (en) * | 2020-03-02 | 2020-06-09 | 广东美的厨房电器制造有限公司 | Fan blade, cooling fan and microwave oven |
| CN111677689A (en) * | 2020-06-23 | 2020-09-18 | 东方电气集团东方电机有限公司 | Design method of vibration and noise reduction mixed flow pump or axial flow pump |
-
2015
- 2015-08-13 CN CN201520607839.1U patent/CN204878074U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499669A (en) * | 2016-10-28 | 2017-03-15 | 扬州大学 | Water pump using flexible stator |
| CN111255743A (en) * | 2020-03-02 | 2020-06-09 | 广东美的厨房电器制造有限公司 | Fan blade, cooling fan and microwave oven |
| CN111677689A (en) * | 2020-06-23 | 2020-09-18 | 东方电气集团东方电机有限公司 | Design method of vibration and noise reduction mixed flow pump or axial flow pump |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20180813 |