| 摘要 |
A burner tip, a combustion burner, and a boiler, provided with: a mixing chamber (85), provided in the interior; multiple mixed-fluid spray holes (82, 83, 84) which are arranged at prescribed intervals in the circumferential direction, and the base ends of which communicate with the mixing chamber (85), and the tip ends of which are open; fluid fuel supply passages (90) that supply a fluid fuel to the mixing chamber (85); and steam supply passages (89) that supply steam to the mixing chamber (85). The mixing fluid spray holes (82, 83, 84) are provided as first spray holes (82a, 83a, 84a), the base ends of which communicate with the mixing chamber (85), and multiple second spray holes (82b, 83b, 84b), the base ends of which communicate with the first spray holes (82a, 83a, 84a), and the tip ends of which are open. Thus, mixing of the fluid fuel and a spray medium is promoted, thereby reducing the spray particle diameter of the fluid fuel and improving combustibility. |
