BUILDING FOR CIRCULATING WATER PUMP DEVICE OF NUCLEAR POWER PLANT FACILITY

PROBLEM TO BE SOLVED: To reduce the building capacity of nuclear reactor facilities by installing the sea water system equipment of another system in the space between circulating water pump pipes in a circulating water pump building. SOLUTION: In the circulating water pump building 1, two circulating water pumps 2 are installed. To determine their installation positions, pump intake part width-directional size is determined according to the diameter of a bell mouth below a circulating pump 2 which is determined on the basis of the shape and flow rate of the circulating water pump 2 and the distance 11 between the circulating water pumps and circulating water pump building width- directional size 10 are determined according to the determined size. The space between circulating water discharge pipes 3 is determined according to the diameter of the circulating water discharge pipe 3 and in the space, sea water system equipment 12 of class-C earthquake resistance is arranged. Further, a header part 4 linking the circulating water discharge pumps 3 has no movable part and eliminates the need for its maintenance, so it can be buried in the ground outside the circulating water pump building 1.