| 摘要 |
An injection flame burner in which temperature of the generated flame itself can be sustained around the flame. A plurality of double structure injection nozzles (5) each consisting of an outer tube (3) and an inner tube (4) provided coaxially with the outer tube (3) are arranged such that hydrogen gas is ejected from one of the outer tube (3) and the inner tube (4) and oxygen gas is ejected from the other tube, and the injection port (6) of each injection nozzle (5) is located in the injection surface. Each injection nozzle (5) consists of at least one main injection nozzle (5a) having an inner tube (4a) formed to spread toward the injection surface side, and other sub-injection nozzle (5b) arranged around the main injection nozzle (5a), wherein gas is injected from the inner tube (4a) of the main injection nozzle (5a) under high pressure state as compared with gas injected from the sub-injection nozzle (5b). |
