GAS BURNER Russian patent published in 2003 - IPC

FIELD: burners of heat-generating units for various industries including thermal engineering. SUBSTANCE: gas burner has mixer in the form of cylindrical tube, gas and air feed pipes, outlet nozzle in the form of converging tube, flame holder, injector installed coaxially to mixer and used to produce gas-air mixture; novelty is that outlet nozzle is built integral with flame holder which has cylindrical channels over outlet nozzle perimeter communicating with mixer interior and provided with inlet and outlet sections of different diameters; injector is made in the form of pipe communicating with gas feed pipe; opposite end of the latter accommodates mixture gas feeding nozzle installed at distance of 6-8 inner diameters of pipe from its butt end; pipe has holes in nozzle location point; ratio of diameter of cylindrical channel inlet section diameter to cylindrical channel outlet section diameter is 0.1-0.5 and ratio of area of cylindrical-channel inlet holes to that of converging-tube outlet hole is 0.05-0.1. EFFECT: enlarged functional capabilities of burner; enhanced environmental friendliness due to reduced emission of pollutants. 1 cl, 2 dwg