核电厂调试期间核级管道振动测量工作改进

Improvement of Vibration Measurement for Nuclear-Class Pipes in Nuclear Power Plants during Decommissioning

美国机械工程师协会(ASME)OM-S/G-2000 Part 3导则存在操作性不足的缺陷,而国内核电厂核级管道振动测量工作均依此导则,采用的试验方法类似,但都无法全面、准确预测管道振动极大点。以某核电厂调试期间核级管道振动测量工作为例,从试验对象的筛选、关键设备或部件的选取、测点选择、现场试验及振动分析评价5个方面进行探讨,提出改进建议,最后以某核电厂安全壳喷淋系统(EAS)的某管段振动为研究对象,对测量方法、振动限值计算及评价等进行案例分析。

ASME （American Society of Mechanical Engineers） OM-S / G-2000 Part 3 of insufficient operational guidelines exists defects, while the vibration measurements for nuclear-class pipes in domestic nuclear power plants refer this guideline, with similar test method, which can not fully and accurately predict the pipeline vibration maximum points. In this paper, taking a nuclear power plant during the commissioning of nuclear grade pipe vibration measurements as an example, the screening of test objects, selection of the critical equipment or components, selection of measurement point, field test and vibration evaluation are discussed, and the recommendation for improvement is proposed. Finally, taking some pipe vibration of someone nuclear power plant EAS system （containment spray system） as the research object, we analyze the method of measurement, calculation and evaluation of vibration limits.