FIELD: heating.
SUBSTANCE: invention relates to heat engineering, can be used for burning of gaseous fuel during the process of heating of working space of industrial furnaces and other thermal aggregates. Technical result is achieved in recuperative burner for gaseous fuel, containing casing, located in casing with annular gap pipe of primary air, combustion chamber, heat exchanger, implemented of pipe bundle, provided for combustion materials, herewith pipes of heat exchanger pass through mounted between casing and pipe of primary air helical spiral for air direction, washing heat exchanger pipes.
EFFECT: increasing of air warming temperature and reduction of fuel consumption.
2 cl, 1 dwg
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