METHOD FOR PREVENTING FLASHBACK OF GASEOUS MIXTURE FLOWING INTO REACTION CHAMBER

摘要

PROBLEM TO BE SOLVED: To provide a method for preventing flashback of a gaseous mixture flowing into a reaction chamber.

SOLUTION: The method for preventing flashback of a gaseous mixture flowing into a reaction chamber features that the cross-sectional area of the through flow is varied in the region between the entrance opening and the reaction space according to the volume of the flowing gaseous mixture in such a manner that the velocity v of the gaseous mixture is controlled to be higher than the burning rate vbr of the gaseous mixture in at least most of the volume generated (load L). The present invention also relates to a reactor equipped with the entrance opening for the gaseous mixture, a distribution zone for the gaseous mixture equipped with a device which varies the cross-sectional area of the through flow, and the reaction chamber so as to carry out the above method. The present invention can be applied for e.g. a self-heating reactor which supplies a hydrogen-containing gas to a fuel cell APU.

COPYRIGHT: (C)2004,JPO