水冷方形分离循环流化床锅炉的启动与压火

Start-up and Hold-down Performance of a CFB Boiler with Water Cooled Square Cyclone

以75 t/h中压锅炉为对象，介绍了水冷异型分离循环流化床的压火、启动特性。其冷态启动到满负荷的时间约为1.5～2 h，燃烧室升温速率平均为12 ℃/min，最大为21 ℃/min。压火6～7 h后可以直接热态启动，热态启动时间约为30 min，温态启动时间与启动时的床温有关，一般在30～60 min。运行中的负荷变化率为9%/min～11%/min。

The start-up and hold-down performance of water cooled square cyclone CFB boiler is introduced with the object of a 75t/h capacity one in this paper. The total time from 0 to full load is about 1.5 to 2 hours, the average rate of temperature rise is 12℃/min, and max is 21℃/min. The temperature maintains about 6 to 7 hours to restart without burning oil, which spend 30 min or so. The total time for warm start-up is related with bed temperature, usually 30 to 60 min. The load changing rate range from 9%/min to 11%/min.