PEM型电解水制氢设备在电厂的应用

Application of PEM-type Hydrogen Generator by Water Electrolysis in Power Plant

与传统的碱性电解水制氢设备相比,质子交换膜(PEM)电解水制氢设备具有电解效率高,工作电流密度大(10000~30000A/m 2),电解槽体积小,工作介质为纯水,无腐蚀性,对环境无污染,系统简单和易于操作维护等优点,使得PEM型制氢设备在发电厂氢气冷却机组方面有广泛的应用。本文介绍了PEM型电解水制氢技术的工作原理及技术优势,通过与碱性电解水制氢技术方案的定量结果进行对比,对PEM电解水制氢设备在电厂氢气冷却发电机组方面应用的技术方案、设备组成及经济可行性进行了分析,并对PEM型电解水技术在电厂领域的发展前景进行了展望。

Compared with alkalinetype hydrogen generation plant,the proton exchange membrane(PEM)electrolysis and hydrogen production technology has the advantages of high operating current density,high electrolytic efficiency,low pollution,lightweight and compact structure.The small electrolyzed water hydrogen production equipment of this technologyhasa wide application prospect in the field of hydrogen-cooled generator sets for power plants.This article first describes the principles and advantages of proton exchange membrane electrolysis of water in hydrogen technology,and then compares with alkaline type electrolysis hydrogen generation technology.Particularly,the advantages of applying proton exchange membrane electrolysis technology ina hydrogen-cooled generator set power plantare analyzed.Furthermore,the development prospects of the proton exchange membrane electrolysis technology are also summarized.