针对某干燥塔的结构特点及运行过程中传热传质特性,建立了该干燥塔中干燥过程的传热传质微分模型,并用试验数据验证其合理性.运用经典龙格库塔法获得该模型的数值结果,分析了传热传质过程中干燥氮气温湿度和锦纶切片温湿度沿塔高的分布情况.通过仿真优化操作条件,提高了干燥塔的干燥能力.%Aiming at the structure of continuous drying tower and the nature of heat-mass transfer, a differential model of heat-mass transfer in drying process was established and its rationality was verified with experimental data. Basing on classical Runge-Kutta method, the numerical results was obtained to have Nitrogen and Nylon slice's temperature and humidity distribution over the drying tower height analyzed. By means of simulation and optimizing the operating conditions, the drying tower efficiency can be improved.
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