COOLING FACILITY FOR SPENT FUEL POOL BUILDING STORING SPENT FUEL USING DECOMMISION NUCLEAR POWER PLANT AND METHOD FOR COOLING WATER FOR SPENT FUEL POOL BUILDING UISING IT

摘要

Disclosed are a cooling water cooling facility for a spent fuel storage tank in which spent fuel is stored using a dismantled nuclear power plant, and a cooling water cooling method for a spent fuel storage tank using the same. The cooling water cooling facility of the spent fuel storage tank that stores spent fuel using a dismantled nuclear power plant is a spent fuel storage tank installed with a storage space formed inside by removing the internal facilities and structures of the nuclear reactor containment building of the dismantled nuclear power plant. , A storage rack installed inside the after-use fuel storage tank to store fuel after use, a coolant that is filled in the storage space of the after-use fuel storage tank, and a heat exchanger for cooling by flowing the coolant from the after-use fuel storage tank, A cooling water circulation line connected between the heat exchanger and the spent fuel storage tank, a circulation pump installed in the cooling water circulation line to circulate the coolant between the spent fuel storage tank and the heat exchanger, and the cooling water of the spent fuel storage tank supplied to the heat exchanger It includes a cooling unit to cool.