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现行的海水淡化法,有蒸发法、膜法、溶剂法、冷冻法等。所有这些方法的设备投资和运转费用都很高,而且耗费大量能源,因而注意到了运转费用比较低的利用太阳热的方式。太阳能海水淡化,脱盐形式有直接法和间接法。直接法把太阳能集热器和蒸发器组装在同一设备内,主要结构是玻璃温室内贮存海水,由于阳光照射产生水蒸汽,冷凝后成为淡水。间接法集热器和脱盐器各自独立。脱盐器是多效水平管液膜蒸发法和高温
The current desalination method, there are evaporation, membrane, solvent, freezing and so on. All of these methods have high equipment investment and operating costs and consume a large amount of energy, thus noting the lower operating costs of utilizing solar heat. Solar desalination, desalination in the form of direct and indirect methods. The direct method integrates solar collectors and evaporators in the same equipment. The main structure is the storage of seawater in glasshouses, water vapor generated by sunlight and condensation to become freshwater. Indirect collector and desalter are independent. Desalter is a multi-effect horizontal tube liquid film evaporation method and high temperature