To provide a regenerative radiant tube burner which realizes low-NOx combustion by combining two-stage combustion and thick and thin fuel concentration combustion, and realizes substantially uniform temperature distribution in a circumferential and longitudinal directions of the radiant tube.
A regenerative radiant tube burner 10 having a regenerative burner comprises a fuel gas jetting nozzle 24 for ejecting a fuel gas to both ends of a radiant tube, primary air jetting nozzles 28 formed around the fuel gas jetting nozzle 24 in order to eject primary combustion air, secondary air jetting nozzles formed around the primary air jetting nozzles 28 in order to eject secondary combustion air 32a, 32b, and a regenerative body 34 for preheating the secondary combustion air. The jetting nozzles for the secondary air 32a, 32b are located such that thick and thin fuel concentration combustion is conducted.
TANAKA HIROYUKI
EBII KENGO
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