摘要
分析了离心泵的振动原因,如汽蚀余量不够、操作流量过低、轻组分分离不彻底、泵入口管道阻塞、泵的流道设计不合理、泵叶轮设计不合理、泵轴不对称、泵体固定不好等。提出了整改方案,如抬高入口测液面高度、减少入口管线和管件的当量长度,增加最小回流线、稳定操作、清理管道内异物、改善泵内结构设计、泵体加固等。
The causes of centrifugal pump vibration are analyzed, such as insufficient pump suction height, too low operating flowrate, insufficient light ends separation, blocking of pump inlet pipeline, improp- er design of pump flow pass and pump impeller vane, non-symmetry of pump shaft and poor fixing of pump body, etc. The corrections are recommended like raising the liquid height at the suction of pump and reducing lengths of pump inlet pipelines and pipe fittings, adding minimal/low recycle line, cleaning out foreign materials in the pipeline, improving internal construction design of pumps and conso!idating pump body, etc.
出处
《炼油技术与工程》
CAS
2009年第6期20-24,共5页
Petroleum Refinery Engineering
关键词
离心泵
振动
汽蚀
阻塞
结构设计
centrifugal pump, vibration, water hammer, blocking, construction design
