化工学报2025，Vol.76Issue(2)：584-595,12.DOI:10.11949/0438-1157.20240691
压滤式水电解槽乳突板内的流动特性分析与优化
Analysis and optimization of flow characteristics in a filter-press water electrolyzer mastoid plate
摘要
Abstract
Electrolysis for hydrogen production is a key driver for the future of green energy.The filter-press water electrolyzer is a widely-used industrial hydrogen production device,where the uniform distribution of electrolytes is crucial for extending electrode lifespan and enhancing electrolysis efficiency.However,the flow field distribution uniformity in traditional mastoid plates is poor,resulting in low electrolysis efficiency and even local overtemperature,which leads to safety problems such as electrode ablation.To overcome this problem and enhance the flow distribution within the electrode plates,a"dense in center,sparse in sides"convex-concave unit distribution strategy for mastoid plates is proposed.First,a visual experimental platform for the mastoid plates was constructed to study the distribution of alkaline solution residence time and validate the simulations.Subsequently,the single-phase flow characteristics of four different dimpled plate structures were simulated,and the flow dead zones were quantitatively characterized using a coupled particle tracking algorithm.The results show that the new convex-concave unit distribution strategy can make the electrolyte flow field inside the electrolytic cell more uniform,minimizing electrolyte backflow and reducing the formation of dead zones.Furthermore,this strategy enhances system flexibility to accommodate a broader range of flow conditions.关键词
电解水制氢/压滤式电解槽/凹凸结构/流动均匀性/结构改进/流动死区/停留时间分布Key words
water electrolysis/filter-press water electrolyzer/convex-concave structure/flow uniformity/structural optimization/flow dead zone/residence time distribution分类
化学化工引用本文复制引用
白谨豪,管小平,杨宁..压滤式水电解槽乳突板内的流动特性分析与优化[J].化工学报,2025,76(2):584-595,12.基金项目
国家重点研发计划项目(2023YFE0106600) （2023YFE0106600）
国家自然科学基金项目(22421003,22178354) （22421003,22178354）
