余热驱动热变换器海水淡化系统性能研究  

Research on the Performance of Desalination System Integrated With Absorption Heat Transformer Driven by Waste Heat

作　　者：刘锋[1,2] 隋军[1,2] 韩巍[1,2] 金红光[1,2] 

机构地区：[1]中国科学院工程热物理研究所,北京100190 [2]分布式冷热电联供系统北京市重点实验室,北京100190

出　　处：《工程热物理学报》2015年第7期1387-1391,共5页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计划(No.2014CB249202);科技部中瑞绿色创新合作项目(No.S2014GR03880)

摘　　要：本文构建了一套余热驱动的热变换器海水淡化系统,系统的废水造水比达到0.0946,较参比系统提高49%。分析了海水温度、热源水入口温度和加热蒸汽温度的变化对系统性能的影响,结果表明随着海水温度升高,系统的废水造水缓慢减小后急速下降;随着热源水入口温度的降低,废水造水比缓慢减小后急速下降;加热蒸汽温度通过影响COP和海水蒸发器效数而影响废水造水比,在75℃时存在最佳值。热源水入口温度太低,海水温度和加热蒸汽温度太高均不利于系统的稳定。A desalination system integrated with absorption heat transformer driven by waste heat was developed with waste gained output ratio （WGOR） of 0.0946, which is 49% higher than the reference system. Effects of variation of seawater temperature, waste water temperature and heating steam temperature on the system performance were studied. Results show that WGOR decreases slowly and then sharply with the increase of seawater temperature or the decrease of waste water temperature. Heating steam temperature affects WGOR by changing COP of absorption heat transformer and number of effect of seawater evaporator, with a maximum WGOR as heating steam temperature of 75℃. Low waste water temperature, high heating steam temperature or seawater temperature has a bad effect on the system stability.

关 键 词：余热 吸收式热变换器 低温多效蒸发 废水造水比 

分 类 号：TK123[动力工程及工程热物理—工程热物理]