大型灯泡贯流泵站振动计算方法  

Computing method of vibration in large bulb tubular pump system

作　　者：李玉莹[1] 高峰[1] 李清华[1] 杨克坤[1] 

机构地区：[1]山东省水利勘测设计院,山东济南250014

出　　处：《水利水电科技进展》2014年第5期69-74,共6页Advances in Science and Technology of Water Resources

摘　　要：为了寻找一种便于设计应用的大型灯泡贯流泵站振动定量分析方法,以南水北调东线工程二级坝泵站为例,对泵站动荷载特性进行了分析,将机组动荷载偏于安全地简化为3个主频谐荷载;根据GB50040—1996《动力机器基础设计规范》并考虑泵站特点,给出了适合泵站振动计算的定量分析方法。将该方法应用于二级坝泵站的振动计算,所得结果为泵站振动的上限值;现场振动检测控制点最大位移值与计算值接近且小于计算值,表明该方法计算结果安全可靠。In this work, we propose a quantitative analysis method of vibration for large bulb tubular pump station, which is easy to design and apply, by taking Erjiba Pumping Station in East Route of South-to-Norlh Water Transfer Project as an example. Furthermore, we analyze the dynamic load properties of the pump station and then find that the dynamic load of machine set can simplify into three main frequency harmonic loads with a little safety. Relerring to GB 50040-1996 The Primary Design Principles on Dynamic Machine and the characteristics of pump station, we provide a suitable quantitative analysis method for calculating the vibration of a pumping station. The paper applied this method to calculate the vibration of Erjiba Pumping Station and the result clearly presents the upper limit. The control point of maximum displacement, tested by vibration detection, is slightly less than calculated values indicating that the quantitative analysis method is safe and reliable.

关 键 词：灯泡贯流泵站 泵站振动 压力脉动 二级坝泵站 南水北调东线工程 

分 类 号：TV675[水利工程—水利水电工程]