GAS BURNER Russian patent published in 2002 - IPC

FIELD: burner units. SUBSTANCE: proposed burner has body with cylindrical combustion chamber located inside it and gas and air supply branch pipes; combustion chamber has perforated surface. Gas and air preliminary mixing chamber is located at combustion chamber inlet. Mounted coaxially relative to combustion chamber between its wall and wall of body is perforated pipe. Nozzle for feeding gas to combustion chamber is fitted at outlet end of gas supply branch pipe. Gas and air preliminary mixing chamber is formed by two perforated disks fitted at outlet end of gas supply pipe line before nozzle. Outlet end of gas supply branch pipe is provided with holes over perimeter which are used for delivery of gas to preliminary mixing chamber. Ratio of area of holes in first (relative to way of motion of air) perforated disk to area of holes in second perforated disk ranges from 1:3 to 1:9. Ratio of diameter of perforations at combustion chamber outlet to diameter of holes at its inlet is equal to 3:1. Nozzle has taper surface and angle between branch pipe axis and generating taper surface ranges from 30 to 80 deg. EFFECT: enhanced stability of burning at high rate of escape of combustion products; enhanced ecological safety. 1 dwg