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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。
In this paper, a set of waste heat-driven seawater desalination system with heat-driven heat exchanger was constructed. The ratio of waste water to fresh water was 0.0946, which was 49% higher than that of the reference system. The effects of sea water temperature, heat source water inlet temperature and heating steam temperature on the system performance were analyzed. The results show that with the increase of sea water temperature, the wastewater of the system slowly decreases and then drops rapidly. With the decrease of inlet temperature of heat source water , And the ratio of wastewater made from wastewater to wastewater decreased rapidly and then decreased rapidly. The effect of heating steam temperature on the ratio of wastewater to wastewater by influencing COP and seawater evaporator efficiency was optimal at 75 ° C. Heat source water inlet temperature is too low, the sea water temperature and heating steam temperature are not conducive to system stability.