流体脉动诱发离心泵振动分析与治理
Centrifugal pump vibration induced by fluid pulse analysis and corrective methods
张新
作者单位：大庆石化公司化工一厂
中文关键字：单级；重工位；离心泵；流体压力脉动；相振动；振动；分析；治理
英文关键字：Single stage；heavy duty；centrifugal pump；fluid pressure pulsation；phase resonance；analysis；vibration；corrective methods
中文摘要：分析了大庆丁二烯装置精馏塔底离心泵的振动高故障，通过频谱、结构分析和实验，找到重工位OH2型离心泵流体脉动诱发轴承箱机械振动的原因，采取修改叶轮叶片数量的措施，避开流体相共振，泵体振动水平达到优级，并提出进一步减振措施以及采购、监造方面的建议。
英文摘要：The article analyses the high vibration of the rectifier column centrifugal pump of heavy duty and OH2 model in daqing BD plant.The result is that high vibration cause of pump bearing house is induced by fluid pressure pulse by way of frenquency spectrum diagnosis, pump structure analysis and experiment, altering vane number of impeller avoided fluid phase resonance, pump vibration level achived good grade , measures for the improved vibration and advice of design,manufacture and purchase is proposed.