增湿-除湿太阳能海水淡化装置实验研究

Experimental Research on Humidification-dehumidification Solar Seawater Desalination Device

基于空气增湿-除湿海水淡化技术,采用曝气管将热空气曝入到太阳能热水器水箱中的增湿方法,设计了以太阳能为热源的小型太阳能海水淡化装置。实验研究表明,该曝气方式具有很好的加湿效果,在各种工况下出口湿空气的相对湿度均可达95.5%以上。出口湿空气的温度及相对湿度主要取决于热空气的曝气速度,选取合适的曝气速度可以使装置获得较高的淡水产率。

A small-sized seawater desalination device combining solar collector was designed based on the air humidification-dehumidification seawater desalination technology. The humidification method is aerate hot air into solar water heater tank by aerator pipe. Experimental Research result show this humidification method with a good wetting effect, the relative humidity of wet air in outlet can reach more than 95.5 % under verious conditions. The temperature and relative humidity of wet air mainly depends on hot air velocity, the suitable aeration velocity can gain a higher production rate of fresh water from the device.