在建立逆流填料式液体除湿系统传热传质过程的数学模型基础上 ,通过合理的简化处理 ,导出了描述这一热质传递过程的常微分方程组 ,得到了相应的解析解 ;并与精确数学模型的数值解进行了对比 ,二者具有良好的吻合性 ;利用解析解分析了各参数对除湿性能的影响 ;所得解析解具有较好的理论及应用价值 Based on the mathematical model of the heat and mass transfer process of the countercurrent liquid-filled liquid dehumidification system, the ordinary differential equations describing the heat and mass transfer process are deduced through reasonable simplification, and the corresponding analytical solutions are obtained. The numerical solution of the mathematical model is compared and the two are in good agreement; the analytical solution is used to analyze the effect of each parameter on the dehumidification performance; the analytical solution obtained has good theoretical and practical value