【摘要】 基于盘形与竖式降膜太阳能海水淡化装置的优、缺点和横管降膜蒸发的理论分析 ,针对现有装置存在的问题 ,设计了横管降膜蒸发闭式循环太阳能海水淡化装置 ,并在不同的运行参数下进行了实验研究 ,分析了影响该装置性能的各种因素 .实验结果表明 ,在供能相同的情况下 ,该装置的产水率比单级盘式太阳能蒸馏器提高了 2～ 2 5倍左右 ;提高运行温度 ,有利于提高产水率及单位能耗产水率 ;热水流率取为 30 0～ 6 0 0kg/h ,海水流率取为 8～ 15kg/h ,有利于提高产水率 ,改善该装置的性能 .更多还原

【Abstract】 Based on the analysis of characteristic of the basin type and vertical falling film solar desalination units and the theory of horizontal tube falling film evaporation, aiming at the shortcomings of previous units, a closed circulation solar desalination unit with horizontal tube falling film evaporation was designed and experimented under the conditions of different operating parameter, and the influence factors on performance of unit were also analyzed. Experimental results indicate that the freshwater yield is about 2～2 5 times higher than the single stage basin solar distiller when the supplied energy is the same. It’s favorite to increase operating temperature for improving freshwater yield and freshwater yield per unit energy consumption. The flow rate of hot water of 300～600 kg/h and the feedstock of 8～15 kg/h can increase the freshwater yield and improve the performance of unit.更多还原