An idea of the circulating fluidized bed with low velocity fore-posited branch bed has been put forward,and tested by an aerodynamic experiment in the cold model.

• 提出前置低速循环沸腾床的结构设想，并进行了冷模空气动力试验，证实此带前置分床的沸腾炉在空气动力上是容易实现的；