Rotary kinetic fluid motors or pumps – Method of operation
Patent
1980-12-29
1988-07-12
Gluck, Richard E.
Rotary kinetic fluid motors or pumps
Method of operation
290 52, 415500, F03B 310
Patent
active
047566639
ABSTRACT:
A method for operating pumps in a pumping-up power plant having a single speed reversible pump-turbine and a booster pump, the booster pump being provided in a branch pipe which is provided in parallel with a portion of a draft tunnel between the pump-turbine and a lower reservoir, is disclosed. The method includes the steps of, closing guide vanes of the pump-turbine, opening the portion of the draft tunnel which runs in parallel with the branch pipe, closing the branch pipe, then starting the pump-turbine in air as a pump, and starting the booster pump. After the rotational speed of the pump-turbine reaches a predetermined value and the rotational speed of the booster pump reaches a predetermined value, the method also includes the steps of, starting exhaustion of the air remaining inside the pump-turbine, closing the portion of the draft tunnel, opening the branch pipe, and opening the guide vanes of the pump-turbine after completion of the exhaustion and completion of closing the portion of the draft tunnel.
REFERENCES:
patent: 2246472 (1941-06-01), Sharp
patent: 3282563 (1966-11-01), Willi
patent: 3309057 (1967-03-01), Tonooka
patent: 3890059 (1975-06-01), Takase
patent: 4318004 (1982-03-01), Tsunoda
patent: 4363597 (1982-12-01), Tsunoda
Shirasu Katsunori
Tsunoda Sachio
Gluck Richard E.
Tokyo Shibaura Denki Kabushiki Kaisha
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