Research on Crack Failure of Auxiliary Feed Water Pump Impeller Based on CFD

被引：0

作者：

Li Y. ^{[1
]}

Liu Z. ^{[1
]}

Zheng H. ^{[1
]}

机构：

[1] Liaoning Hongyan River Nuclear Power Co., Ltd., Dalian, 116319, Liaoning

来源：

Hedongli Gongcheng/Nuclear Power Engineering | 2020年 / 41卷 / 02期

关键词：

Auxiliary feed pump; Computational fluid dynamics (CFD); Impeller crack; Unsteady flow field simulation; Vibration monitoring;

D O I：

10.13832/j.jnpe.2020.02.0130

中图分类号：

学科分类号：

摘要：

In order to study the crack failure characteristics of the auxiliary feed pump impeller, the pressure pulsation response law of the auxiliary feed pump casing measuring point under different impeller crack lengths is explored based on CFD, and the CFD results are verified by the vibration monitoring data of the auxiliary pump feed pump in the presence or absence of impeller cracks. The research shows that the pressure pulsation response of the pump casing can better reflect the crack failure characteristics of the auxiliary feed pump impeller; when there is a crack in the auxiliary feed pump impeller, there will be a clear sideband with a width of rotating frequency of the blade passing frequency in the vibration spectrum of the pump casing measuring point. © 2020, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.

引用

页码：130 / 134

页数：4