Bi-directional axial flow blower for pump-storage hydrogenerators
Axial flow blowers are described cooling the rotatable field winding on synchronous dynamoelectric machines. An axial flow blower is provided on each axial end of the dynamoelectric machine. Each blower includes an inboard and an outboard section. Each section is capable of forcing a gas coolant through interpolar spaces which separate the poles on synchronous motors and generators. A flow guide is arranged in each interpolar space to direct the gas coolant against the adjacent field winding. One inboard section causes axial flow of the gas coolant through the interpolar spaces when the shaft of the dynamoelectric machine is rotated in a first direction and the other inboard section causes axial flow of the gas coolant in the opposite direction when the shaft is rotated in the second direction. The inboard sections are so designed that when they are rotating in their non-blowing direction of rotation, they extract minimum total pressure from the axially-propelled gas coolant forced towards them by the other inboard section and both outboard sections. The outboard sections provide axial flow of gas coolant through the interpolar spaces during both rotational directions of the shaft. Changing rotational direction in applications such as pump storage hydrogenerators requires such bi-directional axial flow blowers.
- Assignee:
- Westinghouse Electric Corp
- Patent Number(s):
- US 4219746
- OSTI ID:
- 6748769
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
130300 -- Hydro Energy-- Plant Design & Operation
25 ENERGY STORAGE
250300* -- Energy Storage-- Pumped Hydro-- (-1989)
BLOWERS
COOLANTS
COOLING SYSTEMS
DESIGN
ELECTRIC GENERATORS
ENERGY STORAGE
FLUIDS
GASES
HYDROELECTRIC POWER PLANTS
MOTORS
PEAKING POWER PLANTS
POWER PLANTS
PUMPED STORAGE
PUMPED STORAGE POWER PLANTS
STORAGE