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结合已有的反渗透/多级闪蒸混产系统和发电多级闪蒸联产系统,设计了一个新的包括热力发电系统、反渗透海水淡化系统和多级闪蒸海水淡化系统的水电联产超结构,对以不同盐度苦咸水、海水为原水的水电联产系统进行了优化设计,通过求解系统以年费用最小为目标函数的非线性数学模型,得到不同盐度下联产系统优化的生产结构.结果表明,在低盐度(≤25000mg/L)下采用冷凝式发电和一级反渗透产水,高盐度下采用抽汽冷凝式发电和热膜混合产水,可降低联产系统的年费用,获得较低成本的淡化水.在本工作所定的生产规模下,优化联产方案的年费用可降低23%~36%.
Combined with the existing reverse osmosis / multistage flashover system and power generation multi-stage flash cogeneration system, a new hydropower system including thermal power generation system, reverse osmosis desalination system and multi-stage flash desalination system was designed The superstructure was optimized to optimize the design of hydropower system with different salinity of brackish water and sea water as raw water. By solving the nonlinear mathematical model with the annual cost as the objective function, The results showed that the use of condensing power generation and primary reverse osmosis to produce water at low salinity (≤25000mg / L) and the use of extractive condensing power generation and hot film mixing at high salinity could reduce The annual cost of the co-production system will be lower than that of the desalinated water, and the annual cost of optimizing the co-production plan can be reduced by 23% -36% under the production scale stipulated in this work.