为克服吸附式制冷能量利用效率不高的缺点，采用硅胶－水、分子筛－水分别作为两级循环的工作对以及两级循环中都用分子筛－水为工作对，构造了两种双效复叠式制冷循环．该循环可有效利用第二级循环的吸附热、析出蒸汽的显热，能有效提高热力完善度。建立了计算机模型，对系统和影响性能的一些参数进行了分析讨论。 In order to overcome the shortcomings of low utilization efficiency of adsorption refrigeration energy, silica gel-water, molecular sieve-water as two-stage cycle working pair and two-stage cycle using molecular sieve-water as working pair, two kinds of double- Stack refrigeration cycle. This cycle can effectively utilize the heat of adsorption of the second stage cycle to separate the sensible heat of the steam, which can effectively improve the degree of thermal perfection. Established a computer model, the system and some parameters that affect performance were discussed.