DEVICE AND METHOD FOR REMOVING HYDROGEN IN REACTOR CONTAINMENT VESSEL

PROBLEM TO BE SOLVED: To securely remove hydrogen and curb the rise in the internal pressure in a reactor containment vessel caused by hydrogen by securing a heat source for sufficiently delivering the original performance of a hydrogen/nitrogen catalyst without needing any offsite power and also efficiently removing oxygen that retards the reaction of the hydrogen/nitrogen catalyst. SOLUTION: A hydrogen removal device 1 placed in the reactor containment vessel 102 enclosing a reactor pressure vessel 107 to remove the hydrogen generated in the vessel 102 when occurrence of an accident includes a cabinet 1a, the hydrogen/nitrogen catalyst 3 placed in the cabinet 1a to generate ammonia from nitrogen and hydrogen in the atmosphere in the containment vessel 102, a hydrogen/oxygen catalyst 4 to generate water from hydrogen and oxygen, heating elements 2b and 5b made of metal that reacts with steam to emit heat and opening and closing doors 2a and 5a that are placed in the cabinet 1a and opened when occurrence of an accident. COPYRIGHT: (C)2011,JPO&INPIT