反渗透海水淡化系统混合膜设计  

Hybrid Membrane Inter-Stage Design for RO Seawater Desalination System

作　　者：苏慧超 李逢时 徐国荣 赵剑超 赵河立 SU Huichao;LI Fengshi;XU Guorong;ZHAO Jianchao;ZHAO Heli(The Institute of Seawater Desalination and Multipurpose Utilization,MNR〈Tianjin〉,Tianjin 300192,China;SEPCOⅢElectric Power Construction Co.,Ltd.,Qingdao 266100,China)

机构地区：[1]自然资源部天津海水淡化与综合利用研究所,天津300192 [2]山东电力建设第三工程有限公司,山东青岛266100

出　　处：《净水技术》2024年第1期132-139,共8页Water Purification Technology

基　　金：国家重点研发计划项目(2023YFE0101000,2017YFF0206703);中央级公益性科研院所基本科研业务费专项资金项目(K-JBYWF-2023-T06)。

摘　　要：节能型反渗透海水淡化系统的设计对于进一步降低制水成本,促进海水淡化的普及应用意义深远。混合膜设计(HID)是一种新颖的反渗透系统设计方式,其特色是在同一个压力容器内排列不同类型的膜元件,通过不同膜元件性能互补实现效益最大化。文中采用软件模拟方式,以水质、能耗、配流为考察指标,首先对杜邦(DuPont)、LG、东丽(Toray)、海德能(Hydranautics)四大主流膜产品在HID中的性能差异进行对比,结果表明,Toray膜在平衡流量和节能效率方面具有明显优势。进一步以Toray膜为研究对象,深入探讨温度和配置比例对性能指标的影响,结果表明,温度是影响HID的一个重要因素,在水温低、水质变化较小的北方海域,HID节能效应更突出,效率可达9%,流量平衡效应明显增强。Energy-saving design of seawater reverse osmosis desalination(SWRO)system is of great significance for reducing the cost of water production and promoting the application of seawater desalination.Hybrid membrane inter-stage design(HID)is a novel method for designing reverse osmosis system,whose features are arranging different types of membrane elements inside the same pressure vessel,optimizing the overall performance through their complementation.In this study,software simulation was employed to investigate the performance differences of membranes from four mainstream brands,namely,DuPont,LG,Toray,and Hydranautics,in terms of water quality,energy consumption and flow distribution.It was found that Toray membranes exhibited outstanding performance in balancing flow and energy saving efficiency.Then,the impacts of temperature and configuration ratio on the performances were further explored for Toray membranes.The results showed that temperature was an important factor for HID.Specifically,in the northern part of China where the seawater temperature was low and the water qualities vary less,the energy-saving effect of HID was more prominent,with the efficiency up to 9%,and the flow balance effect significantly enhanced.

关 键 词：反渗透 海水淡化 混合膜设计(HID) 平衡流量 能耗节约 

分 类 号：X703[环境科学与工程—环境工程]