CAJ | 학술논문

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。
류산장치모진구SO2주풍궤정상운행중선후량차발생협륜협편단렬사고，경단구SEM、금상조직、금속화학성분、협편정빈등방면적종합분석[1-3]，조도료협륜단렬실효적원인。근거해결론，제출료협륜국산화개조방안，개반개식협륜위폐식협륜，보장료SO2주풍궤적은정운행。
The impeller blade in an imported SO2 blower for sulfuric acid plant was fractured twice during normal operation. The cause of fracture was found by the SEM fractured appearance analysis, the metallographic structure, chemical composition analysis and static frequency measurement of vane. According to this conclusion, the project for safeguarding SO2 blower’s stable operation by localizing production of impeller and replacing semi-opened impeller by closed impeller was put forward.