Vibration Fault Diagnosis and Trend Analysis of Circulating Seawater Pump

被引：0

作者：

机构：

来源：

Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | 2022年 / 42卷 / 04期

关键词：

Fault trend - Load reduction - Lubrication / - Nuclear power unit - Rolling bearings - Root Mean Square - Seawater pumps - Trend analysis - Vibration fault diagnosis - Vibration velocity;

D O I：

10.16450/j.cnki.issn.1004-6801.2022.04.024

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学科分类号：

摘要：

Due to the high vibration of the lower rolling bearing of circulating seawater pump in a CPR1000 Nuclear power unit， there is a risk of emergency load reduction or shutdown. It is of great significance to carry out vibration fault diagnosis and trend analysis. By analyzing the signal and root mean square signal of vibration velocity of the BCV 285 circulating seawater pump in operation， it is found that the local spalling exists in the outer ring raceway of the bearing， and the resonance is the main reason for the high vibration defect of the seawater pump. The resonace of the seawater pump is reduced by strengthening the lubrication of the bearing and the rigidity of the foundation. The practice shows that the real-time monitoring of the root mean square value of vibration velocity can guide the safe operation of the circulating seawater pump effectively. © 2022 Journal of Vibration,Measurement & Diagnosis. All rights reserved.

引用

页码：791 / 796

页数：5

共 16 条

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