Water wheel operation control method and apparatus therefor

Details Water wheel operation control method and apparatus therefor Water wheel operation control method and apparatus therefor

1980-12-31

1984-10-02

Coe, Philip R.

Rotary kinetic fluid motors or pumps

Method of operation

415 26, 415500, F01D 2114

Patent

active

044745281

ABSTRACT:
Methods of controlling operation of power generating water wheels and apparatus therefor are disclosed. When a guide vane will not close upon occurence of a state of emergency, the inlet valve is kept open until the flow to the wheel starts to suddenly decrease, and then the valve is closed to cut off the flow. The above operation control can be applied to each of a plurality of water wheels forming at least one closed loop water channel. For simultaneous cutoff of the plurality of water wheels, when one guide vane has been closed but other guide vanes will not close, or when guide vanes are closed with a time lag the inlet valves of the plurality of water wheels are closed to cut off the flow, thereby preventing mutual interference among the water wheels to eliminate generation of abnormal water pressure in the closed loop water channel.

REFERENCES:
patent: 3339567 (1967-09-01), Fukasu
patent: 3658436 (1972-04-01), Oishi
patent: 3886373 (1975-05-01), Okada
patent: 4280788 (1981-07-01), Tsunoda

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