【摘要】 建立了一套机械压汽蒸馏海水淡化系统,其设计生产能力为2 m3.d-1、蒸发温度为95℃.通过实验和理论计算分析了蒸发-冷凝器、压缩机和预热器的性能及系统运行参数对产水能耗的影响.结果表明蒸发温度在89~97℃之间系统运行良好;盐水浓度从4.0%降到2.0%,淡水产率提高约7.2%;淡水产率随蒸发温度升高而升高;系统最小淡水分离功为59.4 kJ.kg-1.更多还原

【Abstract】 A mechanical vapor compression desalination system was set up,of which the designed capacity is 2 m3·d-1,and the evaporator temperature is 95 ℃.The system is composed of evaporator-condenser,compressor and preheaters.The performance of the components and the effects of the parameters on the energy consumption were analyzed experimentally and theoretically.The results indicate that the experimental system works well when the operating temperature is in the range from 89 ℃ to 97 ℃,and that the production rate increases with the evaporator temperature.When the salinity reduces from 4.0% to 2.0%,the production rate increases by about 7.2%.The least seawater separation work of the system is 59.4 kJ·kg-1.更多还原