摘要
我国拥有7300多个500m2以上的岛屿,水、电等基础设施的建设是海岛开发的重要环节,自供应的海水淡化系统是满足生态岛、绿色岛建设指标的前提。本文首先阐述了我国海岛开发的现状及其面临的供水难题,介绍了海水淡化工艺装备的现状以及海上可再生能源在制淡领域的应用;其次,通过对海岛能够利用的可再生能源应用现状和经济成本的对比研究和总结,提出了海水综合利用的必要性和主要途径;最后,就海岛建设中可再生能源的应用和海水的综合利用,展望了未来海水淡化的发展方向。
There are more than 7300 islands bigger than 500m2 around the coast of our country. It is gener-ally known that water and electricity supply are important facilities for island development. Ecological island or green island calls for a seawater desalination system which can serve itself continuously. This paper describes cur-rent development situation of these islands, as well as the problem of water supply. It also gives several main- stream applications about renewable energy at sea and an introduction of the present situation in seawater desali- nation. A comparative study between application situation of renewable energy and economic cost has been done. The necessity and major ways of comprehensive utilization of seawater are put forward as well. The future devel-opment of desalination is predicted in the end and comprehensive utilization of seawater is also discussed.
关键词
海岛
海水淡化
生态岛
供水
能源
island
desalination
ecological island
water supply
energy resources
