Vibration analysis of butylenes centrifugal pump and plunger pump pipeline and research of vibration-damping technology

CHEN Guo， HE Li-dong， HAN Wan-fu， PEI Zheng-wu
（Diagnosis & self-Recovery Engineering Research Center， Beijing University of Chemical Technology，
Beijing 100029， China）

Abstract： In order to solve the problem of butylenes centrifugal pump and plunger pump pipeline vibration in a petrochemical plant，the pipeline damping technology was investigated. The vibration frequency and amplitude of piping systems were measured and finite element analysis software CAESARⅡ was employed to analyze the pipeline model，the relationship between the piping system and its vibration characteristics was founded. Comparing the calculated data with the actual measurement data，the piping vibration solutions were come forward. The vibration-damping technology was used and dampers were installed on the suitable location of pipelines，while the pipeline was in the regular production. The actual engineering damping results show that the vibration of pipeline is reduced effectively and dropped to within safe limits，the pipeline system is ensured to operate safely.
Key words： pipe vibration； CAESARⅡ； modal analysis； vibration damping