Method and apparatus for feed-water control in a steam generating plant
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United States of America Patent
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Mar 24, 1987
Grant Date -
N/A
app pub date -
Mar 26, 1982
filing date -
Mar 27, 1981
priority date (Note) -
Expired
status (Latency Note)
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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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