PASSIVE REFILL AND RECOVERY SYSTEM FOR STEAM GENERATOR

摘要

PURPOSE: A passive refill and recovery apparatus of a secondary system for a steam generator is provided to perform a stable cooling operation by refilling condensed steam in the steam generator if the level of the steam generator is reduced above a preset value. CONSTITUTION: A condensation bath(100) includes a sealed inner space. A steam collecting pipe(110) connects a discharge terminal of a main steam pressure valve to the condensation bath. A pressure reduction unit reduces the pressure of the steam collected by the steam collecting pipe and converts the steam into condensed water. A refill pipe(120) automatically replenishes a steam generator(130) with cooling water. An atmospheric discharge pipe(150) controls internal pressure. A bath filling pipe(160) receives the condensed water from an external supply source.