电催化反应器内进水方式及电流分布的实验研究  

Experimental study on influent mode and current distribution in electro-catalytic reactor

作　　者：黄琳琳 张绪雯 韩继伟 Huang Linlin;Zhang Xuwen;Han Jiwei(School of Environmental&Chemical Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China;Heilongjiang Provincial Highway&Bridge Survey&Design Institute Co.Ltd.,Harbin 150090,China)

机构地区：[1]黑龙江科技大学环境与化工学院,哈尔滨150022 [2]黑龙江省公路桥梁勘测设计院有限公司,哈尔滨150090

出　　处：《黑龙江科技大学学报》2025年第1期59-64,共6页Journal of Heilongjiang University of Science And Technology

基　　金：国家自然科学基金青年基金项目(52000061);黑龙江省省属高等学校基本科研业务费项目(2023-KYYWF-0519)。

摘　　要：为优化圆柱形电催化反应器内的进水方式及电极间距,利用CFD和COMSOL模拟反应器内流体流动过程中的速度分布,并通过实验方法验证模拟结果的准确性。结果表明:进水方式为切向时反应器传质性能最佳,此时电极表面速度分布较均匀,利于提高反应过程中溶液分布的一致性和空间利用率,进水流速为0.062 m/s时切向进水的极限电流为0.032 m/s时的1.25倍,增大进水流速能够提高体系的传质性能;适当增加电极间距能够促进均匀的电流分布,当电极间距为15 mm时,反应2 h后,TOC去除率可达89.7%。This paper aims to optimize the water influent mode and electrode spacing in a cylindrical electro-catalytic reactor by using CFD and COMSOL to simulate the velocity distribution of the fluid flow within the reactor,and verify the accuracy of these simulation results by experiment.The results indicate that the mass transfer performance of the reactor performs best with the tangent influent mode,together with even surface velocity distribution across the electrode,which improves the consistency of solution distribution and the space utilization in the reaction process.The limiting current of the tangential influent water at an inflow speed of 0.062 m/s is 1.25 times higher than that at 0.032 m/s,suggesting that increasing the inflow rate can enhance the mass transfer performance of the system;and the appropriate increase of electrode spacing can enhance the uniformity of current distribution.When the electrode spacing is set to 15 mm,the TOC removal efficiency can reach 89.7%after a 2-hour reaction period.

关 键 词：电催化反应器 进水方式 电极间距 传质性能 

分 类 号：X703.1[环境科学与工程—环境工程]