NUCLEAR POWER PLANT AND REACTOR COOLANT PRESSURE CONTROL APPARATUS

PROBLEM TO BE SOLVED: To suppress pressure reduction of a reactor coolant being present within a reactor cooling system when starting up a nuclear power plant.SOLUTION: A nuclear power plant 1 has: an extraction water pressure control valve 16 provided in extraction piping 15A for extracting a react...

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Bibliographic Details
Main Authors SAKAMOTO HOMARE, SUDO AKIO
Format Patent
LanguageEnglish
Published 01.03.2012
Subjects
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR POWER PLANT
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To suppress pressure reduction of a reactor coolant being present within a reactor cooling system when starting up a nuclear power plant.SOLUTION: A nuclear power plant 1 has: an extraction water pressure control valve 16 provided in extraction piping 15A for extracting a reactor coolant C1 within a reactor cooling system 2rcs; and a reactor coolant pressure control apparatus 20 for performing PI control on operation of the extraction water pressure control valve 16 in such a manner that a deviation between target pressure within the reactor cooling system 2rcs and actual pressure within the reactor cooling system 2rcs becomes 0. In the case where the deviation exceeds a predetermined threshold value, the reactor coolant pressure control apparatus 20 makes a value of at least either a proportion gain or an integration time constant greater than that before the deviation exceeds the threshold value.
Bibliography:Application Number: JP20100185587