摘要:硫酸装置某进口SO2主风机正常运行中先后两次发生叶轮叶片断裂事故,经断口SEM、金相组织、金属化学成分、叶片静频等方面的综合分析[1-3],找到了叶轮断裂失效的原因。根据该结论,提出了叶轮国产化改造方案,改半开式叶轮为闭式叶轮,保障了SO2主风机的稳定运行。
关键词:so2主风机 叶片 应力腐蚀 疲劳断裂 马氏体不锈钢
单位:瓮福集团 贵州大学 贵州福泉550501
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