GAS-AND-MAZUT FURNACE Russian patent published in 2003 - IPC

FIELD: industrial heat-and-power engineering equipment, particularly for heat-power plants. SUBSTANCE: furnace for co-combustion or separate combustion of gas and mazut into furnace with stacked burners has vertical rectangular combustion chamber, burners, supplying air pipes. Burners are arranged at least in two layers on combustion chamber walls. Upper layer burners are formed as mazut straight flow burners. Each upper layer burner has two air voids, rectangular body and mazut nozzle located co-axial with burner. Rectangular body is edgewise separated into 3 compartments. Central compartment is connected with one air void, end compartments are connected with the other air void. EFFECT: increased reliability and effectiveness of multistage gas combustion process, decreased nitric oxide discharge into the air. 2 cl, 3 dwg