| 摘要 |
A tubular flame burner includes a tubular combustion chamber having an open end, a fuel gas injection nozzle, and an oxygen-containing gas injection nozzle, each of the injection nozzles being disposed on a closed end side of the combustion chamber so as to be oriented in a direction tangential to an inner wall surface of the combustion chamber. The tubular flame burner further includes a temperature-adjustment gas injection nozzle and backflow preventing means, the temperature-adjustment gas injection nozzle being disposed on the open end side of the combustion chamber and injecting a temperature-adjustment gas for adjusting a temperature of a combustion exhaust gas, the backflow preventing means preventing backflow of the temperature-adjustment gas, which has been injected from the temperature-adjustment gas injection nozzle, toward the fuel gas injection nozzle. |
