基于FLUENT的并联自平衡多级泵末级内流动研究  

The Inner Flow Study of Parallel Self-balancing Multistage Pumps Based on FLUENT

作　　者：秦武[1,2] 陈芳芳[1,2] 罗瑞祥 李志鹏[2] 

机构地区：[1]长沙佳能通用泵业有限公司,长沙410323 [2]长沙理工大学,长沙410114

出　　处：《中国农村水利水电》2017年第5期198-201,共4页China Rural Water and Hydropower

基　　金：科技型中小企业技术创新基金项目(11C26114303029)

摘　　要：为了研究双进口并联自平衡型卧式多级离心泵双蜗壳压水室的水力性能,在确定叶轮模型前提下,采用不同速度系数的第Ⅸ断面设计并调整隔板出口的延伸长度,通过CFD分析确认了速度系数0.38、隔板延伸至垂直型线为3个方案中的最优模型。最后通过两级泵整机试验测试,表明实测性能曲线与CFD预测曲线误差2%以内,且高效区在0.751.3倍额定流量区间。Hydraulic performance is studied at the last stage of dual-imports parallel self-balancing horizontal multistage centrifugal pumps, multi -designed double volute multistage centrifugal pumps pressurized water chamber, under the condition of given impeller model. The model with the baffle extending close to the exit and the velocity coefficient of 0.38 is the best one of the three schemes through CFD simulation. The tolerance is lower than 2% between the test result and CFD simulation, with high efficiency between 0.75 - 1.3 rated flow.

关 键 词：多级离心泵 双蜗壳 内部流动 数值模拟 

分 类 号：TV675[水利工程—水利水电工程] TV136