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贵州北盘江董箐发电厂220MW水轮发电机组试运行时产生异常轰鸣噪音,经分析是由于水轮机转轮卡门涡造成的,在对转轮叶片进行修形处理后得以解决。
During the trial operation of 220MW hydroelectric generating set in Beipanjiang Dongfanghong Power Plant in Guizhou Province, abnormal roar noise was generated. After analysis, it was caused by the Karman vortex of the turbine of the turbine and was solved after the blade was modified.