在能源紧张和水资源匮乏的时代背景下,利用太阳能驱动膜蒸馏系统来淡化海水和苦咸水成为一项重要的水处理技术.为了提高膜蒸馏通量,使用了旋转切向入流的方式来强化传质过程,并对其作了深入的数值模拟和机理研究.在空气隙膜组件结构上做了进一步的改进,其通量与原有膜组件通量接近,但易于加工制作和可多种方式组合使用.为提高太阳能热水系统的性能,开展了集热器性能的实验研究,并应用FLUENT软件对全玻璃真空管集热系统进行三维数值模拟计算.太阳能膜蒸馏的实验表明在呼和浩特夏季,完全可以利用太阳能驱动膜蒸馏系统全天工作.%In the background of energy shortage and water scarcity, It becomes an important water treatment technology for solar-powered membrane distillation system to desalinate the sea water or brackish water. To improve the flux of membrane distillation, a rotary tangential inflow method is used to enhance the mass transfer process, and its numerical simulation and mechanism study have done. Membrane module structure in the air gap membrane distillation system has been further improved, its flux is close to the original membrane module, but it is easy to manufacture and can be used in combination with a variety of ways. To improve the performance of solar water heating system, experimental study of collector properties has been carried out. And three-dimensional numerical simulation for all-glass vacuum tube solar collector system has been done by software FLUENT. Experimental results show that solar powered membrane distillation can work safely all day in summer of Huhhot.
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