The mathematical and physical dynamic models are given based on the adsorbent theory of porous medium . its running and parameters affecting its performance are numerically studied and the method that control the water content in the absorbent bed is recommended . the improvement on system configuration to recover heat is discussed and the operation scheme is given 利用多孔介质吸附模型和平衡吸附压力的概念建立了该系统工作过程的物理数学模型，数值模拟的方法模拟了其工作过程和影响因素，提出了控制吸附床含湿量的方案，验证了改进流程回收能量的可行性并给出了操作方案，提出并分析了用热电制冷器回收水蒸气潜热节约电能的方法。
