采用含盐水溶液进行了两种类型的动态膜蒸馏实验 ,即间歇恒温操作和间歇降温操作。实验测定不同时刻 (不同浓度 )对应的纯水通量和蒸出质量累积值。同时建立了动态膜蒸馏过程的数学模型 ,模型预测值与恒温间歇操作实验结果吻合较好。对降温间歇操作中出现的实验现象进行了分析和讨论 ,在此基础上提出了项目样机采用间歇操作的构想 Two types of dynamic membrane distillation experiments were conducted using saline solution, namely intermittent constant temperature operation and intermittent cooling operation. Experimental determination of different times (different concentrations) corresponding to the pure water flux and the cumulative value of steam quality. At the same time, a mathematical model of dynamic membrane distillation process was established. The predicted values ​​of the model coincide well with those of the intermittent operation at constant temperature. Based on the analysis and discussion of the experimental phenomena occurring during the intermittent operation of the cooling process, the concept of intermittent operation of the project prototype is proposed