排灌机械工程学报2018，Vol.36Issue(6)：466-471,6.DOI:10.3969/j.issn.1674-8530.16.0217
离心泵机组振动故障诊断与分析
Vibration test and analysis of centrifugal pump
摘要
Abstract
The vibration test and analysis is difficult to be conducted,and the valid ways are still lack, which causes many centrifugal pumps to exceed the standard vibration in a big potential risk.In order to solve the problem,the HG8908C,a vibration data collection system of Beijing Jinghang,was used to monitor the vibration signal on the centrifugal pump manufactured by Chongqing Pumps Company. The vibration signal characteristics of amplitude domain,time domain and frequency domain were ana-lyzed in detail by fast fourier transforms(FFT).Besides,combined with the typical database of vibra-tion faults,the faults,such as the friction fault between pump rotor and casing,and the poor suppor-ting stiffness on pipe by balancing axis force(PBAF),were diagnosed.Based on the above mentioned diagnostic outcome and the static bending deflection of pump rator by FEM,the install center of pump rotor was adjusted,the thickness of PBAF was increased,the support as welded among PBAF and pump body and other solutions were carried out.The test results show that the solution ways have a positive effect on it,and the pump can work for hours in a good state.The fault diagnosis methods and the solution ways can solve better the matters of vibration faults on the centrifugal pumps,which is of a certain value to the similar problems.关键词
离心泵机组/可靠性/振动测试/快速傅里叶变换/故障诊断Key words
centrifugal pumps/reliability/vibration analysis/fast fourier transforms/fault diagnosis分类
机械制造引用本文复制引用
雪增红,曹潇,王天周..离心泵机组振动故障诊断与分析[J].排灌机械工程学报,2018,36(6):466-471,6.基金项目
中国船级社项目(9215294) （9215294）
