冲压焊接离心泵水力设计及数值模拟  

Hydraulic Design and Numerical Simulation of Stamping Welding Centrifugal Pump

作　　者：董同祥 Dong Tongxiang(Harbin Electric Power Equipment Co.,Ltd.,Harbin,China)

机构地区：[1]哈尔滨电气动力装备有限公司,黑龙江哈尔滨

出　　处：《科学技术创新》2024年第23期97-100,共4页Scientific and Technological Innovation

摘　　要：本文以某型号离心泵为例,探究了冲压焊接离心泵的水力设计要点,并使用UG软件建立模型展开了数值模拟。对比铸造泵和冲焊泵的效率,发现同样工况下冲焊泵的效率略低,分别选取叶片数目、叶片出口角以及叶片出口直径3项参数予以优化。在叶片数目为5、出口角为28°、出口直径为288 mm的情况下,冲压焊接离心泵在流量为90 m^(3)/h时效率达到了71.7%,比优化前提升了4.4%,比铸造泵提升了3.4%;轴功率为6.5 KW,比优化前低了0.2 KW,比铸造泵低了0.7 KW。由此可得,在水力结构优化后冲压焊接离心泵的效率更高、能耗更低。This article takes a certain model of centrifugal pump as an example to explore the hydraulic design points of stamping welding centrifugal pump,and uses UG software to establish a model for numerical simulation.Comparing the efficiency of casting pumps and welding pumps,it was found that the efficiency of welding pumps is slightly lower under the same working conditions.Three parameters,namely the number of blades,the outlet angle of the blades,and the outlet diameter of the blades,were selected for optimization.When the number of blades is 5,the outlet angle is 28°,and the outlet diameter is 288 mm,the efficiency of the stamping welding centrifugal pump reaches 71.7%at a flow rate of 90 m^(3)/h,which is 4.4%higher than before optimization and 3.4%higher than the casting pump;The shaft power is 6.5 KW,which is 0.2 KW lower than before optimization and 0.7 KW lower than the casting pump.It can be concluded that after optimizing the hydraulic structure,the efficiency and energy consumption of the stamping and welding centrifugal pump are higher.

关 键 词：冲压焊接离心泵 水力设计 叶轮 轴功率 效率 

分 类 号：TH311[机械工程—机械制造及自动化]