Power plants – Motive fluid energized by externally applied heat – Having condition responsive control
Patent
1982-03-26
1987-03-24
Jordan, Charles T.
Power plants
Motive fluid energized by externally applied heat
Having condition responsive control
606441, 60646, 122406ST, 376246, 376247, 376370, 376402, F22D 528, F22D 530, G21D 104
Patent
active
046515305
ABSTRACT:
A method and an apparatus for feed-water control in a steam generating plant such as a boiling water nuclear reactor having motor-driven feed-water pumps and turbine-driven feed-water pumps for supplying feed-water to a steam generator, in which the feed-water flow through the turbine-driven feed-water pumps is controlled to be maintained constant, while reducing the recirculation flow discharged from the turbine-driven feed-water pumps and fed back to the inlet thereof, so as to reduce the amount of feed-water supplied to the steam generator by the motor-driven feed-water pumps, whereby variation of water level in the steam generator during switching between the two kinds of feed-water pumps is suppressed.
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patent: 3384550 (1968-05-01), Hanzalek
patent: 3431168 (1969-03-01), Kjemtrup
patent: 4046628 (1977-09-01), Middleton
patent: 4290850 (1981-09-01), Omori et al.
patent: 4322267 (1982-03-01), Kinoshita et al.
patent: 4440715 (1984-04-01), Sato et al.
Hitachi , Ltd.
Jordan Charles T.
Klein Richard
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