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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。
As one of the important ways to solve the shortage of freshwater resources, desalination is receiving more and more attention. However, its high energy consumption has become a bottleneck restricting its further application. In this paper, the study of hot film coupled hydro-electric power generation and desalination technology was carried out. An optimization model of integrated system was established. The GAMS software was used to solve the problem with the maximum annual economic benefit. The effect of reverse osmosis and multi-stage flash freshwater production ratio R on the system was analyzed. The thermal membrane coupled hydro-electric co-generation desalination technology and continuity (OTMSF) The Total Economic Benefits of 3 Sections of Multi-Stage Flash Hydropower and Seawater Desalination with CMSF. The results show that under the same conditions of total fresh water production, the overall economic benefits of the hot film coupled hydro-electric combined system are greater. With the increase of R, the overall economic benefit decreases monotonically and the cost of water increases gradually . Therefore, for the integrated system of hot film coupled hydropower and cogeneration, appropriately increasing the freshwater yield of multi-stage flash is beneficial to the overall economic benefits of the system.