循环流化床锅炉高温分离器分离效率的确定

The Determination of the Seperation Efficiency of a High-temperature Separator for a Circulating Fluidized Bed Boiler

根据循环流化床密相区热平衡分析．提出了循环灰量和循环灰温度是影响密相区温度水平的主要因素．利用循环倍率的定义，推导出了循环倍率的计算式．在灰平衡分析的基础上，推导出了高温分离器分离效率与循环倍率的关系式．推荐发展适合国情的低循环倍率（Ｒｃ＝２～１０）的循环流化床锅炉．

Based on rhe heat balance analysis of a circulating fluidized bed dense phase ration the author holds that the circulating ash quantity and itS temperature are major factors influencing the temperature leyel of the dense phase region. By the use of the definition of circulation ratio a formula for calculating the circulation ratio was derived. On the basis of the ash balance analysis a relationship between the high-temperature separator separation efficiency and circulation ratio has also been deduced It is recommended to develop the circulating fluidized bed boilers of low circulation ratio(Rc=2-10). which are in tune with the curren. conditions in China.