FURNACE Russian patent published in 2013 - IPC F23C5/08 

FIELD: power engineering.

SUBSTANCE: furnace comprises a combustion chamber with a vertical plane of symmetry, side walls with screen pipes arranged symmetrically relative to the vertical plane of symmetry, bottom and ceiling slabs, a rear wall with a window of combustion products discharge, a front wall with two main burners symmetrically arranged relative to the vertical plane of symmetry, having slot vertical nozzles to supply primary air and gas, arranged at the side of the vertical plane of symmetry of the chamber, slot vertical nozzles for introduction of secondary air arranged at the side of side walls with screen pipes, and also slot vertical spacers separating these nozzles, on the front wall under the main burners there is a burner installed, having a slot horizontal nozzle arranged at the bottom side for supply of secondary air, a slot horizontal nozzle arranged at the side of the main burners for primary air and gas supply, and also a slot horizontal spacer separating these nozzles.

EFFECT: invention makes it possible to reduce gas underburning with lower yield of nitrogen oxides.

3 dwg