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发明申请
US20100162930A1 SOLID-FUEL BURNER, COMBUSTION DEVICE USING SOLID-FUEL BURNER, AND METHOD OF OPERATING THE COMBUSTION DEVICE 审中-公开
固体燃料燃烧器，使用固体燃料燃烧器的燃烧装置以及操作燃烧装置的方法

SOLID-FUEL BURNER, COMBUSTION DEVICE USING SOLID-FUEL BURNER, AND METHOD OF OPERATING THE COMBUSTION DEVICE
摘要：
Provided is a solid fuel burner (60) suitable for controlling a flame to be formed by combustion of fuel ejected from the burner (60) and a temperature distribution in a furnace, a combustion apparatus using the solid fuel burner (60), and a method of operating the combustion apparatus. Providing in the fuel nozzle (10) a plurality of gas ejection nozzles (81), (82) and a restriction (obstacle) (19) downstream thereof, and ejecting a relatively large amount of gas from a portion of the gas ejection nozzles (81) provides a circumferential distribution in fuel concentration. Further, having the restriction (obstacle) (19) on a downstream side increases a deviation in fuel concentration. Providing a fuel concentration deviation in the circumferential direction makes it possible to change the forming position of a flame. Therefore, regulating the flow rate of gas flowing through the gas ejection nozzles (81), (82) makes it possible to control constant the temperature of combustion gas at a furnace exit, the temperature of a heat transfer tube provided on a furnace wall surface, the temperature of a fluid flowing through the heat transfer tube, or the temperature of a heat transfer tube provided in a furnace or at a downstream-side flue portion thereof and the temperature of a fluid flowing through the heat transfer tube.
摘要（中）：

提供一种固体燃料燃烧器（60），其适于控制由燃烧器（60）喷射的燃料的燃烧和炉内的温度分布形成的火焰，使用固体燃料燃烧器（60）的燃烧装置，以及 操作燃烧装置的方法。 在燃料喷嘴（10）中设置有多个气体喷射喷嘴（81），（82）和其下游的限制（障碍物）（19），并且从气体喷射喷嘴的一部分喷射相对大量的气体 81）提供燃料浓度的圆周分布。 此外，在下游侧具有限制（障碍物）（19）会增加燃料浓度的偏差。 在圆周方向上提供燃料浓度偏差使得可以改变火焰的形成位置。 因此，通过调节流过气体喷嘴（81），（82）的气体的流量，能够使炉出口处的燃烧气体的温度恒定，设在炉壁面上的传热管的温度 流过传热管的流体的温度，或设置在炉子或下游侧烟道部分的传热管的温度以及流过传热管的流体的温度。

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