公开(公告)号：US4284401A

公开(公告)日：1981-08-18

申请号：US62532

申请日：1979-07-31

申请人： June Tatebayashi ,  Kazuaki Yano

发明人： June Tatebayashi ,  Kazuaki Yano

IPC分类号： F23C10/22 ,  F23G5/30 ,  F23D19/02

CPC分类号： F23G5/30 ,  F23C10/22

摘要： A bed of solid particles on an air distributor of a fluidized-bed furnace is fluidized by upward currents of air fed through the distributor. A fuel to be burnt in the fluidized bed is premixed with carrying air, and the fuel-air mixture is fed into the bed from a burner extending upwardly through the distributor. For utmost combustion efficiency the ratio by mass of the feed rate of the fuel-carrying air to the sum of the feed rates of the fuel-carrying air and the bed-fluidizing air is adjusted by flow control valves so as to be in the range of from about 0.2 to 0.6. The head of the burner is of such construction that the fuel-air mixture is ejected therefrom in the form of swirling jets. The burner head is usually located about 50 millimeters above the distributor.

摘要翻译： 在流化床炉的空气分配器上的固体颗粒床由通过分配器供给的空气的向上流动而流化。 在流化床中燃烧的燃料与携带空气预混合，并且燃料 - 空气混合物从向上延伸穿过分配器的燃烧器进料到床中。 为了最大的燃烧效率，通过流量控制阀调节燃料承载空气的进料速度与燃料输送空气和床流化空气的进料速度之和的质量比，使其在该范围内 为约0.2至0.6。 燃烧器的头部具有这样的结构，使得燃料 - 空气混合物以漩涡喷射的形式从其喷射。 燃烧器头通常位于分配器上方约50毫米处。