前置导叶离心泵的损失建模及试验  

Modeling and experiment of the hydraulic losses of centrifugal pump with inlet guide vanes

作　　者：谭磊[1] 曹树良[1] 桂绍波[1] 祝宝山[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,热能工程系北京100084

出　　处：《水力发电学报》2011年第4期191-196,共6页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金资助项目(50776052);国家高技术研究发展计划(863计划)资助项目(2008AA05Z201)

摘　　要：基于水力机械基本方程,建立了前置导叶离心泵的损失计算模型,将前置导叶离心泵的损失分为叶轮损失、前置导叶损失和蜗壳损失三部分。完成了不同工况、不同预旋角度下装有前置导叶的XA150/32型离心泵外特性试验。运用本文提出的损失模型预测了前置导叶离心泵的扬程和效率特性,将计算结果与试验数据进行了比较,结果表明,该模型的预测结果准确可靠且适用范围广,为实际工程中离心泵的优化设计提供了一种快速实用的性能预测方法。A loss model of centrifugal pump with inlet guide vane was developed using the basic equations of hydraulic pump,and the total loss was divided into three parts,impeller loss,inlet guide vane loss and volute loss.The performance of an XA150/32 centrifugal pump with inlet guide vane was tested under various pre-whirl angles and other conditions,and the loss model was adopted to predict the head and efficiency of the pump.The results agree well with the experimental data and meet the engineering needs.The model provides a fast and practical method of performance prediction for optimization design of centrifugal pumps.

关 键 词：水力机械 离心泵 损失模型 性能预测 试验 

分 类 号：TV136.2[水利工程—水力学及河流动力学]