MULTI-CHAMBER FIRING DEVICE Russian patent published in 2011 - IPC F23C1/12 

FIELD: power industry.

SUBSTANCE: supply openings of afterburning air are slot-type and arranged in bottom coverings of primary furnaces parallel to slot-type supply openings of lighting-up air and separated from them with partitions with width B_partition=(0.05-0.35)·B_{primary furnace}; separating walls are installed above partitions and restricted with height H_walls=(0.05-0.45)·H_{primary furnace}; gas supply tubes are lifted above bottom coverings of primary furnaces to height H_gas=(0.50-0.85)·H_{primary furnace}, and axes of gas outlet nozzles are turned relative to horizontal symmetry planes of gas supply tubes through angle γ=10°-40°, where B_{primary furnace} and H_{primary furnace} are inner dimensions of width and height of primary furnace, m, respectively.

EFFECT: reducing the temperature in gas ignition primary furnaces and enlarging their operating period between repairs at reduction of concentration of nitrogen oxides in combustion products.

5 dwg