ASEISMATIC/TSUNAMI-RESISTANT EMERGENCY POWER GENERATION FACILITY FOR NUCLEAR POWER PLANT

摘要

PROBLEM TO BE SOLVED: To provide a safe and highly reliable emergency power generation facility for supplying power necessary for emergency core cooling in a reactor shut-down process to prepare for a giant tsunami accompanying an earthquake, when emergency power supply is shut down in a nuclear power plant mainly facing ocean due to a giant earthquake.SOLUTION: An emergency power generation facility is structured so that all apparatuses and systems of the power generation facility are enclosed in one aseismatic, tsunami-resistance and water-proof building. In the building: a fuel tank and a pump chamber are disposed in an underground part; two sets (for regular use and for backup) of power generators driven by internal-combustion engines and all apparatuses necessary for an operation thereof including remote auto start-up are disposed in an above-ground part; and an aseismatic and tsunami-proof air-intake/outtake tower is disposed on a rooftop at a height considering an expected maximum height of a tsunami plus a margin for shredder waves. The present invention can also be applied to an emergency power generation facility for an important establishment at a coast exposed to tsunamis.