水电机组振动评价和测点布置现行标准对比分析Comparative analysis of current standards for vibration evaluation and measuring points layout in hydropower units
李志华,李明,王远洪,王猛,郭金忠,刘殿程,夏绍云,马优,周科衡
摘要(Abstract):
比对了行业标准和国家标准中关于水电机组振动/摆度的越限评价和测点布置要求,阐述了工程现场振动/摆度测点的布置等,发现评价标准、测点布置标准和工程现场之间出现了振动评价边界条件、评价准则、评价工况、测点布置等不一致或不明确的现象。分析发现:各标准间不统一之处均出现在固定部件的振动评价和测点布置,对机组轴系径向振动(摆度)的规定相对统一;各标准中的不一致现象,不利于标准广谱应用,且容易产生歧义和分歧;评价标准和测点标准不一致的现象,不利于大型或者巨型机组现场全面振动评价;所有标准中评价准则中缺少振幅越限幅度与累计时长权重系数考虑,不利于水电机组新型角色下振动故障及状态检修开展和数据积累。该结论可为水电机组振动标准编制、安装验收、运行管理和科研试验等从业人员提供帮助和参考。
关键词(KeyWords): 振动;摆度;振动评价;测点布置;不统一
基金项目(Foundation):
作者(Author): 李志华,李明,王远洪,王猛,郭金忠,刘殿程,夏绍云,马优,周科衡
DOI: 10.19666/j.rlfd.202402027
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