CN201661513U - A pump reverse turbine impeller inlet - Google Patents
A pump reverse turbine impeller inlet Download PDFInfo
- Publication number
- CN201661513U CN201661513U CN2010201358340U CN201020135834U CN201661513U CN 201661513 U CN201661513 U CN 201661513U CN 2010201358340 U CN2010201358340 U CN 2010201358340U CN 201020135834 U CN201020135834 U CN 201020135834U CN 201661513 U CN201661513 U CN 201661513U
- Authority
- CN
- China
- Prior art keywords
- pump
- turbine
- rear cover
- inlet
- turbine impeller
- 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.)
- Expired - Fee Related
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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
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本实用新型是为了减小由于泵反转透平叶轮进口尖角而引起的漩涡和撞击损失，提高泵反转透平的效率，而提出的一种泵反转透平叶轮进口。本实用新型将泵反转透平的叶片进口端1和前后盖板进口端2设为圆角，使叶片出口和前后盖板实现光滑过渡。从而减小了泵反转透平叶轮进口冲击损失和漩涡损失，达到了提高泵反转透平的效率目的。
The utility model aims at reducing the vortex and impact loss caused by the sharp angle of the pump reverse turbine impeller inlet, and improving the efficiency of the pump reverse turbine impeller, and proposes a pump reverse turbine impeller inlet. In the utility model, the blade inlet end 1 and the front and rear cover plate inlet ends 2 of the pump reverse turbine are rounded, so that the blade outlet and the front and rear cover plates realize a smooth transition. Therefore, the impact loss and vortex loss at the impeller inlet of the reverse pump turbine are reduced, and the purpose of improving the efficiency of the reverse pump turbine is achieved.
Description
Technical field
The utility model relates to the import of a kind of pump counter-rotating turbo wheel, refers in particular to the pump counter-rotating when being used as turbine, in order to improve the efficient of pump counter-rotating turbine, and the impeller inlet of design.
Background technique
The principle of pump counter-rotating hydraulic turbine is the counter-rotating by pump rotor, and the high-pressure energy that import liquid is had is converted into the mechanical energy of rotor, thereby realizes the purpose to the recovery of import highly pressurised liquid energy.This device is usually used in the energy recycle device of power less than 500KW.Under the pump operating mode, the blade of pump and front and rear cover plate export normally wedge angle, because the flow performance of the mobile and pump inside of turbine inside is different, its flow direction is just in time opposite.If directly do hydraulic turbine with the pump counter-rotating, its efficient generally is lower than the efficient of pump.In order to improve the efficient that pump counter-rotating hydraulic turbine reclaims the highly pressurised liquid energy, should adopt new design method and measure.
Summary of the invention
In order to improve the efficient of pump counter-rotating hydraulic turbine, the utility model provides the import of a kind of pump counter-rotating turbo wheel, effectively raises the efficient of pump counter-rotating hydraulic turbine.
Technical solution adopted in the utility model is: in order to reduce turbine inlet owing to liquid and blade, cover plate bump produce bigger whirlpool and impact loss, the entrance point of blade entrance point and front and rear cover plate is set as fillet, make blade exit and front and rear cover plate realize smooth transition, thereby effectively reduced the loss of pump counter-rotating turbine import bump, improved the efficient of pump counter-rotating turbine.The size of set fillet should not change blade and front and rear cover plate outside diameter.
The beneficial effects of the utility model are: by this device, reduced pump counter-rotating turbo wheel import impact loss and whirlpool loss, reached the purpose that improves hydraulic turbine efficient.
Description of drawings
The wedge angle of the blade of Fig. 1 pump impeller
Fig. 2 turbo wheel blade rounding
Two kinds of different front and rear cover plate roundings of Fig. 3, Fig. 4
Among the figure, 1, the blade entrance point, 2, the front and rear cover plate entrance point.
Embodiment
In conjunction with Fig. 1, Fig. 2 this device being carried out embodiment describes.
The reverse blade entrance point 1 and the front and rear cover plate entrance point 2 of turbo wheel import of pump is made as fillet, makes blade exit and front and rear cover plate realize smooth transition.The size of set fillet should not change blade and front and rear cover plate outside diameter, and the fillet outer rim of promptly described blade entrance point 1 and the outer circular edge of front and rear cover plate are tangent.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201358340U CN201661513U (en) | 2010-03-19 | 2010-03-19 | A pump reverse turbine impeller inlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201358340U CN201661513U (en) | 2010-03-19 | 2010-03-19 | A pump reverse turbine impeller inlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661513U true CN201661513U (en) | 2010-12-01 |
Family
ID=43231930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201358340U Expired - Fee Related CN201661513U (en) | 2010-03-19 | 2010-03-19 | A pump reverse turbine impeller inlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201661513U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973403A (en) * | 2019-03-11 | 2019-07-05 | 衢州学院 | A pump-turbine performance test device based on a load pump |
| CN111649004A (en) * | 2020-06-30 | 2020-09-11 | 浙江理工大学 | A high-speed centrifugal pump reversing as a hydraulic turbine device |
-
2010
- 2010-03-19 CN CN2010201358340U patent/CN201661513U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973403A (en) * | 2019-03-11 | 2019-07-05 | 衢州学院 | A pump-turbine performance test device based on a load pump |
| CN111649004A (en) * | 2020-06-30 | 2020-09-11 | 浙江理工大学 | A high-speed centrifugal pump reversing as a hydraulic turbine device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20120319 |