FIELD: motors and pumps.
SUBSTANCE: invention can be used in centrifugal pumps, fans and compressors, whose impellers have radial blade grates. Loss of pressure is minimized due to the fact that, in the form of the median blade line recommended by the invention, the absolute flow of the working medium in the region of the grate in the radial plane occurs along the arcs of the circle. Recommended optimum shape of the median blade line is calculated in each specific case based on the geometric and gas dynamic parameters of the impeller according to the interrelation given in the invention.
EFFECT: invention minimizes head losses in such blade grates by setting the optimum shape of the blades center line.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR EXPERIMENTAL OPTIMIZATION OF RADIAL FAN IMPELLER | 2020 |
|
RU2740873C1 |
| BLADE GRID OF CENTRIFUGAL TURBOMACHINE | 2019 |
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RU2696921C1 |
| BLADE SYSTEM OF CENTRIFUGAL WHEEL | 2009 |
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RU2403455C1 |
| BLADE DIFFUSER OF CENTRIFUGAL MACHINE | 2009 |
|
RU2406880C2 |
| RADIAL IMPELLER GRATING OF CENTRIFUGAL STAGE | 2015 |
|
RU2579525C1 |
| MULTISTAGE SUBMERGED AXIAL PUMP | 2003 |
|
RU2244164C1 |
| DEVICE FOR REMOVING FOREIGN OBJECTS FROM AIR FLOW IN FIRST STAGE OF AXIAL COMPRESSOR OR SUB-ZONE OF GAS TURBINE ENGINE FAN | 2017 |
|
RU2672196C2 |
| STAGE OF CENTRIFUGAL COMPRESSOR | 0 |
|
SU1726849A1 |
| METHOD FOR ORGANIZING ENERGY EXCHANGE BETWEEN WORKING MEDIUM AND BLADED MACHINE IMPELLER | 1995 |
|
RU2100657C1 |
| DIFFUSER OF TURBOMACHINE | 2008 |
|
RU2485356C2 |
