METHOD AND DEVICE FOR BURNING GAS Russian patent published in 1994 - IPC

FIELD: thermal engineering. SUBSTANCE: method involves feeding gaseous and air flows to a combustion zone and injection of recirculation gases. The recirculation gases are injected into the gas flow before mixing it with the air flow. The device has a gas feed case a gas feed pipe mounted along the case axis. The air feed pipe is mounted in the gas feed case with an annular clearance and has gas nozzles with outlet holes on the side surface, the nozzles are coaxially positioned around the air feed pipe and one nozzle - around the other one. The air feed pipe also has recirculation gas feed nozzles and branch pipes on the side surface of the gas feed nozzle. The branch pipes are brought out into outlet holes. EFFECT: improved efficiency. 2 cl, 1 dwg