SYSTEM OF FLOODING FOR EXTERNAL REACTOR VESSEL

摘要

PURPOSE: The absorbing impact system of reactor wall collaboration is provided to prevent accident by steadily cooling the exterior wall in the electricity truncation. CONSTITUTION: The cooling water supply line is connected to the collaboration of the nuclear reactor. A reload water tank (210) holds within the nuclear reactor building has the cooling water. A outside cooling water supply line is connected to a cooling water supply line. The spool (257) is provided with water from an external service water supply device. A condenser cooling water tub (230) is connected to the outside cooling water supply line. [Reference numerals] (104) Nuclear reactor cavity; (210) Reload water tank in the structure of a nuclear reactor; (220) External water supply unit; (230) Condensation cooling tank; (242) Shutdown cooling pump; (244) Borated water supplement pump; (257) Spool