| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiling-water nuclear power plant that reliably supplies coolant water to a reactor pressure vessel or a reactor containment vessel using a back-up building if a severe accident should occur.SOLUTION: A boiling-water nuclear power plant comprises: a nuclear reactor building 100 that has a reactor containment vessel 101; and an outside building 200 that has resistance properties against hazards and is located independently outside the nuclear reactor building 100. The outside building 200 has an operation panel 201 and a power source 202 independent from the nuclear reactor building 100. The boiling-water nuclear power plant also comprises: water injection pumps 211 and 212 located inside the outside building 200; alternate water injection pipes 110, 120, 130, 140, and 150 through which water is supplied to at least a reactor pressure vessel 102 or the reactor containment vessel 101 in the nuclear reactor building 100 by the water injection pumps 211 and 212; and valves connected to the alternate water injection pipes 110, 120, 130, 140, and 150. Accordingly, if a severe accident should occur, alternate water injection is possible.SELECTED DRAWING: Figure 1 |
