Abstract In this paper, a design method of loop seal typed recycle device used in CFB boiler is discussed in detail on the basis of structure parameters and air distributor of loop seal as well as external aeration rate and pressure.

• 针对流动密封阀结构尺寸，布风装置和外部充气量、充气压力的确定等方面，详细探讨了循环流化床锅炉中最常用的流动密封阀（LoopSeal）型返料装置的设计方法。