中文摘要：

海水淡化作为解决淡水资源缺乏的重要途径之一，受到越来越多的重视。但其能耗高成为制约其进一步推广应用的瓶颈。本文开展了热膜耦合水电联产海水淡化技术的研究，建立了集成系统的优化模型，以年经济效益最大为目标，采用GAMS软件进行求解。分析了反渗透和多级闪蒸淡水产量的比值R对系统的影响，并比较了热膜耦合水电联产海水淡化技术与贯通性（OTMSF）、带有盐水循环器（MMSF）和带有排热段（CMSF）3种不同结构的多级闪蒸水电联产海水淡化技术的总经济效益。结果表明：在相同的总淡水产量条件下，热膜耦合水电联产系统的总经济效益较大；对热膜耦合系统，随着R增大，总经济效益单调递减，制水成本逐渐增大。因此，对于热膜耦合水电联产集成系统，适当提高多级闪蒸的淡水产量，有利于系统总的经济效益的提高。

英文摘要：

Seawater desalination technology is getting more and more attention as one of the most important solution to the lack of fresh water. But the high energy cost is the bottle-neck of its extendibility and application. The integrated system of A hybrid RO/MSF desalination plant combined electricity is studied. The optimization model with maximize total economic benefits as the object is provided and the GAMS program is adopted to solve the problem. Simultaneously, the ratio of the RO production and the MSF production is introduced to analyze the affect to the integrated system. And the flow-sheet of hybrid RO/MSF, OTMSF, MMSF and CMSF plant with electricity is compared. The result shows： The total economic benefit of the hybrid RO/MSF system is more than others while the quantity of freshwater is constant. For the hybrid RO/MSF system, the total economic benefit is decreased and the unit cost of freshwater is increased gradually along the R increasing. Consequently, it is propitious to increase the total benefits that MSF production of the hybrid RO/MSF combined electricity integrated system is appropriately increased.