循环流化床锅炉冷态临界流化风量与运行风量

Analysis of the Relationship of CFBB Minimum Fluidization Air Flow in Cold and Hot Positions

利用厄贡准则式和浙江大学提出的计算式计算了宽筛分颗粒的临界流化风速以及冷热态临界流化风速的比值 ,分析了冷态临界流化风量与热态运行时风量的关系 ,认为二者基本相当时才能保证热态运行时床料良好流化。

The minimum fluidization velocity (u mf) of wide-grade coal and the ratio of u mf in cold and hot positions were calculated using the Eraun and Zhejiang university's equations respectively. The realtionship of the u mf in cold and hot positions was analyzed and from the analysis the conclusion that cold and hot u mf should be nearly the same to keep CFB running properly can be drawn.