Effectively utilize low heat value gaseous fuel's multichannel combustor

The utility model discloses an effectively utilize low heat value gaseous fuel's multichannel combustor, pretext portion, protective layer and pipeline are constituteed, and be that the protective layer forms for the pouring of fire -resistant casting material, be located the head outside, and the pipeline is along radially being formed by axial compressor wind urceolus, whirl wind urceolus, two angle swirler, the layering of gaseous fuel inner tube, coaxial suit to interior outside from in proper order, its characterized in that: axial compressor wind urceolus, whirl wind urceolus constitute annular axial compressor wind channel, and whirl wind urceolus, two angle swirler constitute the whirl wind channel, and two angle swirler and gaseous fuel inner tube constitute gas channel, be provided with axial compressor tuber pipe, whirl tuber pipe, gaseous fuel takeover, central tuber pipe on axial compressor wind urceolus, whirl wind outer tube, gaseous fuel gas outer tube, the gaseous fuel inner tube respectively. The utility model discloses configuration optimization low heat value gaseous fuel's the surely technique of firing, through the optimal configuration in wind channel, the ignition temperature of coal gas air current reduces, ignition time shortens, has satisfied low heat value gaseous fuel's burning condition.