LIFTED FLAME PREMIXED COMBUSTOR BY SUPPLYING FUEL AIR MIXTURE TO CENTER NOZZLE

摘要

Disclosed is a lifted flame premixed combustor of which the central part receives mixed air. The premixed combustor has at least one premixed combustion nozzle including an outer cylinder wall; an inner cylinder wall arranged in the outer cylinder wall at a certain distance, having a first path through which a first mixed fluid of air and fuel passes, and having a central path through which a second mixed fluid passes; and a first swirler installed in the first path. According to the present invention, the central part of the flame of a fuel nozzle is lifted, thereby preventing thermal damage to a nozzle central part and reducing nitrogen oxides.