A SWIRLING FLASHBACK ARRESTOR

摘要

A structure is disclosed that will quench a flame front during a flashback event in a gas turbine while simultaneously providing a mixing function during normal operations. The device disclosed consists of two monoliths one upstream of the other. In the basis embodiment of the invention the downstream monolith (20) acts as a mixer while the combination of the upstream monolith (10) and the downstream monolith act as the flashback arrestor. Other embodiments of the device also allow the downstream monolith to be a flameholder. The upstream monolith (10) and the downstream monolith (20) have a plurality of channels (21, 23) defined by walls (41, 42) and are separately by a gap (16, 17). The downstream monolith (20) includes at least one channel (21) which has a spatial orientation whereby a swirl (135) is imparted to a fluid traversing there through.