ISOLATION COOLING SYSTEM IN NUCLEAR POWER PLANT

PROBLEM TO BE SOLVED: To achieve the control over the pressure or temperature of a reactor even in the occurrence of a reactor isolation event by making the amount of heat removed by a reactor isolation cooling system adjustable. SOLUTION: In an isolation cooling system including an introduction pipe for introducing the steam from a reactor pressure vessel, a heat exchanger for removing the heat from the steam introduced from the introduction pipe and a return pipe for returning the condensate condensed by the heat removal in the heat exchanger, the return pipe includes a regulating valve. COPYRIGHT: (C)2011,JPO&INPIT