安全、健康和环境2026，Vol.26Issue(5)：77-85,9.DOI:10.3969/j.issn.1672-7932.2026.04.011
碱性电解槽氢氧混合安全影响因素实验研究
Experimental Study on the Influencing Factors of Hydrogen-Oxygen Mixing Safety in Alkaline Electrolyzers
摘要
Abstract
To address the safety hazards of hydrogen and oxygen mixing caused by diaphragm rupture during hydrogen production by alkaline water electrolysis,this study investigated the effects of alkaline electrolyte cir-culation flow rate,operating pressure,and pressure deviation between the hydrogen and oxygen sides on gas pu-rity using a single-electrolyzer experimental platform.The results indicated that an optimal value existed for the electrolyte circulation flow rate;both excessively low and high rates exacerbated gas mixing,a phenomenon that was particularly pronounced when the rupture occurred in the upper part of the diaphragm.Furthermore,an in-crease in operating pressure generally elevated the hydrogen content in oxygen,with a more significant impact observed in the lower region of the diaphragm.Moreover,the effect of pressure deviation exhibited position de-pendency.Specifically,the hydrogen content in oxygen at the upper diaphragm rised significantly with an in-creasing pressure difference,whereas the mixing at the lower diaphragm was predominantly driven by the elec-trolyte circulation flow rate.Through experimental analysis,this study elucidated the influence of key parame-ters on hydrogen-oxygen crossover behaviors under typical diaphragm ruptures,thereby providing a reliable ex-perimental basis for the safe operation of electrolyzers.关键词
碱性电解槽/氢氧混合/气体纯度/操作参数Key words
alkaline electrolyzer/hydrogen-oxygen mixing/gas purity/operating parameters分类
能源科技引用本文复制引用
毕晓蕾..碱性电解槽氢氧混合安全影响因素实验研究[J].安全、健康和环境,2026,26(5):77-85,9.基金项目
山东省重点研发项目(2024CXPT064),绿氢制备与储输过程风险致灾机制及安全保障技术. （2024CXPT064）
