热力透平2025，Vol.54Issue(2)：91-96,148,7.DOI:10.13707/j.cnki.31-1922/th.2025.02.003
隔膜压缩机膜片疲劳性能研究
Research on Diaphragm Fatigue Performance in Diaphragm Compressors
摘要
Abstract
Diaphragm compressor is the core equipment of hydrogen and nuclear energy units in the field of green and low carbon energy,and its metal diaphragms are critical vulnerable components.During operation,the diaphragm executes reciprocating flexural motion in the cylinder,so it is mainly subject to radial and circumferential stress,leading to significant high cycle fatigue.Compared with the method to control the diaphragm stress by optimizing the cavity profile,to adopt metal materials with excellent fatigue properties is the fundamental way to prolong the service life of metal diaphragm.The tensile properties and high cycle fatigue performance of two typical diaphragm materials,namely 301 SS and 00Cr15Ni5,are tested and studied,with the results that 00Cr15Ni5 has higher elastic yield limit and better high cycle fatigue performance.Meanwhile,it is discovered that the high cycle fatigue performance of diaphragm can be further improved by water sandblasting and polishing on the diaphragm surface.The research results can provide reference for future development of diaphragm compressors with large discharge capacity and high pressure ratio.关键词
隔膜压缩机/金属膜片/高周疲劳/301 SS/00Cr15Ni5/表面处理Key words
diaphragm compressor/metal diaphragm/high cycle fatigue/301 SS/00Cr15Ni5/surface treatment分类
机械工程引用本文复制引用
苏小云,王鹏,陈钢..隔膜压缩机膜片疲劳性能研究[J].热力透平,2025,54(2):91-96,148,7.基金项目
2022年上海市优秀学术/技术带头人计划资助(22XD1431200) （22XD1431200）
