石油化工装置离心泵最小流量浅析  

Analysis of Minimum Flow of Centrifugal Pump Used in Petrochemical Plant

作　　者：邵晨[1] 王小鹏[1] 邢桂坤 范吉全[1] 

机构地区：[1]中国寰球工程公司,北京100012

出　　处：《化工设备与管道》2015年第6期51-54,共4页Process Equipment & Piping

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目(2010E-1703)

摘　　要：石油化工装置中小流量、高扬程的离心泵逐渐被广泛使用,如化肥装置中的高压甲铵泵、高压液氨泵和高压锅炉给水泵。这些泵在低流量运行时,可能出现振动、噪声等机械故障,通过分析低流量时对泵产生的危害提出应采取的相应措施,并对最小流量线的作用、设置原则、典型设计以及最小流量的确定等方面进行了讨论。In petrochemical plants, the centrifugal pumps with high head and small and medium flow are more and more widely applied, such as high pressure carbomate pump, high pressure liquid ammonia pump and high pressure boiler water feeding pump. In operation of these pumps with low flow, mechanical faults, including vibration and noise, may occur. In this article, through the analysis of harms to pumps in low flow operation, counter measures were proposed. Moreover, the function and determining principle of minimum flow line, and its application in design were discussed.

关 键 词：离心泵 最小流量 汽蚀 

分 类 号：TQ051.2[化学工程] TH311[机械工程—机械制造及自动化]