FIELD: nuclear power engineering.
SUBSTANCE: hub of a cooling tower fan contains a ring and a disk, cavities and cutouts are open in the ring and/or in the disk to reduce frequencies of natural fan oscillations and prevent excitation of certain-type loads that negatively effect the fan during operation. The number, size and shape of cavities can be adjusted to adjust the frequency of natural fan oscillations within the initial value.
EFFECT: obtaining axial cooling tower fan.
6 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| AXIAL FAN | 2010 |
|
RU2546894C2 |
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|
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|
RU2135853C1 |
