高频电磁水处理器处理腔的电磁场仿真分析及实验

Electromagnetic Field Simulation Analysis and Experiment on Processing Chambers of High-frequency Electromagnetic Water Treatment Devices

处理腔是高频电磁水处理器的重要组成部件,为了确定何种处理腔结构对高频电磁阻垢除垢具有更佳的效果,利用准静态学方法对2种常见的处理腔即同轴式处理腔和螺线管式处理腔进行了电磁场分析,得到了同轴式处理腔主导场为电场、螺线管式处理腔主导场为磁场的结论;利用Ansoft Maxwell软件建立了有限元模型,仿真分析其内部的电磁场能量的分布,仿真分析表明:当施加相同的激励源并处理相同体积的水时,同轴式处理腔内的电磁能量大于螺线管式处理腔;最后,设计了一套高频电磁阻垢除垢系统和微型循环水系统,并自行配兑钙离子浓度为5mmol/L的碳酸钙溶液进行了实验研究,检测了溶液中电导率和生成的晶体形态,并用挂片法测定了阻垢率。实验结果表明:2种处理腔都有一定的阻垢效果,但同轴式处理腔的阻垢效果明显优于螺线管式处理腔。

Processing chamber is an important part of high-frequency electromagnetic water treatment devices,in order to determine which one has better anti-scaling effect between two chambers,one is set with coaxial electrodes and the other is wrapped by spirals,we analyzed the quasi-static electromagnetic field distribution in these two chambers.It was proved that the majority field in processing chamber with coaxial electrodes was electric field and that in processing chamber wrapped by spirals was magnetic field.Meantime,we simulated electromagnetic energy distribution in two processing chambers by using the Ansoft Maxwell software,which was based on the finite element method.According to the simulation data,electromagnetic energy of processing chamber with coaxial electrodes is much bigger than that of processing chamber wrapped by spirals.Meanwhile,a mini-circulating water system is built and water quality experiments are completed by self preparing CaCO3 solution in which the concentration of Ca2＋ is 5 mmol/L.Moreover,we observed the microscopic structures of crystal morphology and electric conductivity,and also determined the scale-inhibition rate by weight-loss method.Analysis results from experimental data illustrate that both processing chambers under high-frequency pulsed field have anti-scaling effects,but the processing chamber with coaxial electrodes is more effective.