我国沿海地区的经济发展大都面临着淡水资源短缺的严重制约。根据沿海地区的地理位置和水源条件,发展海水淡化技术是解决该地区淡水供需矛盾的有效途径之一。 目前,国际上通用的海水淡化技术主要有蒸馏、电解和分馏渗透膜洼等,其中蒸馏法海水淡化能与火力发电厂相结合而构成热电联产,不仅可以解决沿海地区电力紧张状况,而且可以使其成为淡水供应基地。这是目前世界各国蒸馏法海水淡化技术发展的主流。 Most of the economic development in our coastal areas is seriously restricted by the shortage of freshwater resources. According to the geographical location of coastal areas and water conditions, the development of desalination technology is one of the effective ways to solve the contradiction between supply and demand of fresh water in this area. Currently, the international common seawater desalination technologies mainly include distillation, electrolysis and fractional distillation of permeable membrane depression. The desalination of desalination can be combined with thermal power plant to form combined heat and power, which can not only solve the power shortage in the coastal area, but also can Make it a fresh water supply base. This is the mainstream of the development of desalination technology in the world by distillation method.