张学延,张卫军,何国安,崔光明,潘渤

• 1:西安热工研究院有限公司

摘要(Abstract)：

火电机组深度调峰、灵活性运行，增大了主、辅机设备转子出现裂纹故障的风险，对机组安全稳定运行构成严重威胁。根据建立的裂纹转子的振动方程，归纳了裂纹转子的主要振动特性，并在此基础上结合现场诊断经验，提出通过振动分析识别转子裂纹故障的方法，该识别方法判据包括持续爬升的基频振动且转子动平衡无效、2倍频振动持续增大、伯德曲线异常等。最后通过3起运行中的汽轮机、发电机和锅炉一次风机转子裂纹的故障识别案例，说明了该方法的实际应用过程及其准确性。

关键词(KeyWords)： 转子;裂纹故障;振动特性;故障识别;诊断案例

Abstract:

Keywords:

基金项目(Foundation): 中国华能集团有限公司总部科技项目（HNKJ22-H103）~~

作者(Author): 张学延,张卫军,何国安,崔光明,潘渤

DOI: 10.19666/j.rlfd.202502027

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