孙朋元,袁瀚,张继,孙坤元,庞海林

• 1:中国海洋大学工程学院

摘要(Abstract)：

本文提出了一种基于冷冻脱盐的海水双级冷冻预淡化系统。该系统利用蒸发结晶器对海水进行冷冻,并通过振动分离与洗涤实现冰晶与卤水的分离,以此实现海水的初步脱盐,可作为反渗透淡化的预处理系统。同时,海水冷冻淡化过程中消耗的冷量可重新回收用于空调制冷,淡化成本得以有效降低。本文建立了海水双级冷冻预淡化系统的数学模型,获得了试验系统的关键设计参数,以此搭建了试验平台并完成了试验测试,并对海水双级冷冻预淡化系统进行了经济性分析。试验结果表明:经过海水冷冻预淡化系统,预淡化海水产量可维持在21～27 L/h之间;预淡化海水盐度可从35降低到约11;预淡化过程可回收总冷量7.91 kW;反渗透淡化总成本可降低约33%。

关键词(KeyWords)： 海水淡化;冷冻预淡化;反渗透淡化;经济性分析

Abstract:

Keywords:

基金项目(Foundation): 山东省自然科学基金项目(ZR2017BEE011);; 青岛市博士后应用研究项目资助~~

作者(Author): 孙朋元,袁瀚,张继,孙坤元,庞海林

DOI: 10.16441/j.cnki.hdxb.20180283

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