热力发电2024，Vol.53Issue(11)：38-46,9.DOI:10.19666/j.rlfd.202402027
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 1李明 2王远洪 2王猛 3郭金忠 2刘殿程 2夏绍云 1马优 1周科衡2
作者信息
- 1. 西安热工研究院有限公司,陕西 西安 710054
- 2. 华能澜沧江水电股份有限公司,云南 昆明 650206
- 3. 郑州航天电子技术有限公司,河南 郑州 450066
- 折叠
摘要
Abstract
The requirements of over limit evaluation and measuring points layout of vibration/swing in hydropower units in industry standards and national standards are compared.The layout of vibration/swing measurement points on the project site is also described.It is found that the standards related to evaluation and the ones related to measuring points arrangement are inconsistent or unclear with the engineering site,such as vibration evaluation boundary conditions,evaluation criteria,evaluation working conditions and measuring points arrangement.Analysis shows that all the differences between the standards appear in vibration evaluation and measuring points arrangement for fixed parts,and the provisions on radial vibration(swing)of the unit shafting are relatively unified.Inconsistencies in all standards are not conducive to broad-spectrum application,and are prone to ambiguity and disagreement.The phenomenon that the evaluation standard is inconsistent with the measuring points standard,is not conducive to on-site comprehensive vibration evaluation of large or giant units.All the standard evaluation criteria lack the consideration of weight coefficient of amplitude exceeding the limit and cumulative duration,which is not conducive to the development of vibration fault and condition based maintenance,and data accumulation in the new role of hydropower units.The conclusion is expected to provide analytical help and reference for the practitioners of vibration standard compilation,installation and acceptance,operation management and scientific research and test of hydropower units.关键词
振动/摆度/振动评价/测点布置/不统一Key words
vibration/swing/vibration evaluation/measuring points arrangement/disunity引用本文复制引用
李志华,李明,王远洪,王猛,郭金忠,刘殿程,夏绍云,马优,周科衡..水电机组振动评价和测点布置现行标准对比分析[J].热力发电,2024,53(11):38-46,9.
