To provide a burner device for multi-fuel, capable of simultaneously burning different kinds of fuels such as liquid and gas, or a plurality of fuel gases having significantly different compositions, and to improve maintenance performance in the burner device for multi-fuel.
A burner includes an outer burner nozzle 15 and an inner burner nozzle 16, an introduction flow channel 25 formed between the inner burner nozzle and the outer burner nozzle, a plurality of rod-shaped gas burner nozzles 34 disposed in parallel with a shaft center inside of the inner burner nozzle, and ring headers 38 disposed on an outer end of the burner. A combustion air adjustment device supplies the secondary air 106 from an outer periphery of the outer burner nozzle and supplies the tertiary air 107 from the inner burner nozzle, rear ends of the gas burner nozzles and the ring headers are connected through detachable connection pipes 37, a second fuel gas 41 is supplied to the gas burner nozzles, and a first fuel gas 23 having calorie lower than that of the second fuel gas is supplied to the introduction flow channel.
WATANABE SHINJI
ITOKAZU RYUNOSUKE
KUROSE TAKAO
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