公开(公告)号：US4741879A

公开(公告)日：1988-05-03

申请号：US872716

申请日：1986-06-10

申请人： William J. McLean ,  Lawrence R. Thorne ,  Joanne V. Volponi

发明人： William J. McLean ,  Lawrence R. Thorne ,  Joanne V. Volponi

IPC分类号： G21C9/004 ,  G21C19/317 ,  G21C9/04

CPC分类号： G21C19/317 ,  G21C9/004 ,  Y02E30/40

摘要： A catalytic igniter which can ignite a hydrogen-air mixture as lean as 5.5% hydrogen with induction times ranging from 20 s to 400 s, under conditions which may be present during a loss-of-liquid-coolant accident at a light water nuclear reactor comprises (a) a perforate catalytically active substrate, such as a platinum coated ceramic honeycomb or wire mesh screen, through which heated gases produced by oxidation of the mixture can freely flow and (b) a plurality of thin platinum wires mounted in a thermally conductive manner on the substrate and positioned thereon so as to be able to receive heat from the substrate and the heated gases while also in contact with unoxidized gases.

摘要翻译： 一种催化点火器，可以在轻水核反应堆的液体 - 液体冷却剂事故期间可能存在的条件下，将诱导时间为20秒至400秒的氢气空气混合物点燃为5.5％的氢气 包括（a）穿孔催化活性基底，例如镀铂的陶瓷蜂窝或丝网筛，通过混合物氧化产生的加热气体可自由流动，以及（b）多个安装在导热 在衬底上并定位在其上，以便能够接收来自衬底和加热气体的热量同时也与未氧化气体接触。