基于正交实验的换热器循环水电化学除垢系统优化  

Optimization of electrochemical water softening system based on orthogonal tests

作　　者：林纬[1] 丁珮珊 汪威[1] 吴礼彬[1] 徐建民[1] 郑小涛[1] 喻九阳[1] LIN Wei;DING Pei-shan;WANG Wei;WU Li-bin;XU Jian-min;ZHENG Xiao-tao;YU Jiu-yang(Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment,Wuhan Institute of Technology,Wuhan 430205,China)

机构地区：[1]武汉工程大学湖北省绿色化工装备工程技术研究中心,湖北武汉430205

出　　处：《高校化学工程学报》2020年第4期1012-1018,共7页Journal of Chemical Engineering of Chinese Universities

基　　金：武汉工程大学校内基金(K201630);国家自然科学基金(50976080)。

摘　　要：为了研究电化学水软化系统中操作参数对除垢量的影响程度,建立循环水电化学水软化系统。设计正交实验,分析电解电压、电极板间距与溶液初始硬度等实验因素及水平数对系统除垢量的影响。结果表明,在实验工况条件下,影响除垢效率的主次因素依次为溶液起始硬度、电解电压、电极板间距。综合性能最优的水平组合为:电压为30 V,电极板间距为50 mm,溶液起始硬度为1000 mg×L^-1。电化学水软化法适合软化高硬度的循环水,优化电化学软化水装置应优先考虑适当增大电解电压,其次是减小电极板间距。A circulating water electrochemical water softening system was established to study the effect of operating parameters on descaling.Experimental factors and levels including electrolysis voltage,spacing between electrode plates and initial hardness of the solution were determined.Orthogonal experiments were designed to analyze the influence of each factor on descaling quantity.The results show that the factors affecting removal efficiency are decreased in an order of initial hardness of the solution,electrolysis voltage and spacing between electrode plates.The optimal combination is:voltage 30 V,electrode plate spacing 50 mm and solution initial hardness 1000 mg×L^-1.The electrochemical water softening method is suitable for softening circulating water with high hardness.Electrochemical softening water devices should first consider increase of electrolytic voltage and then reduce the spacing between electrode plates.

关 键 词：电化学 水软化 正交实验 优化分析 

分 类 号：TU991.264[建筑科学—市政工程]