| 摘要 |
<p>A hydrogen treatment facility for treating hydrogen without using a power source is disposed outside a reactor containment vessel (109) and in a upper portion of a reactor building. A hydrogen detector (129) detecting hydrogen in the reactor building is connected to a control apparatus operated by an independent power source activated at the time of station black-out. A circulation passage for air circulation generated in the reactor building is disposed in the reactor building and outside the reactor containment vessel (109). A hydrogen treatment duct (128a, b, c) connects to the circulation passage and both of a gangway (130) and a room disposing an equipment. When a severe accident and a station black-out and when hydrogen concentration detected by the hydrogen detection apparatus exceeds a set concentration, the hydrogen treatment duct (128a, b, c) is put in use by the control apparatus. Air containing the hydrogen is introduced into the hydrogen treatment facilities through the hydrogen treatment duct (128a, b, c) and the circulation passage.</p> |
