摘要
以DQ100-64-22型冲压泵为研究对象,对设计空间扭曲叶片、倒角空间扭曲叶片和圆柱形叶片3种不同叶型的冲压焊接离心泵内部流场进行CFD数值模拟分析和样机实验。研究表明,在空间叶片与叶轮前后盖板连接处进行倒角对泵性能影响不大,但可以改变入口流态,减小入口处的冲击损失;圆柱形叶片对泵内部流场和水力性能影响较大,但在流量比较低时,对泵扬程和效率的影响很小。研究结论对冲压泵型线的设计和实际生产都有一定的指导意义。
Taking DQ100-64-22 stamping pump as study object, the paper proceeded inner flow field of three different blades--space distroted blade, chamfer space distorted blade and cylindrical blade--stamping welding centrifugal pump with CFD numerical simulation and experimental investigation. The results indicate that processing fillet at the connecting section of space blade and shafts being chamfer only results in slight influence on the pump performance, but can change the inlet flow state and decreases impact losses of the inlet spot. The cylindrical blade has great influence on both inner flow field and hydraulic performance of pump in the high flow rate situation. The research can provide a good support for the vane curve design and manufacture of stamping and welding multistage centrifugal pumps.
出处
《轻工机械》
CAS
2012年第6期95-98,共4页
Light Industry Machinery
关键词
冲压泵
叶片型线
数值模拟
实验研究
stamping and welding multistage centrifugal pump
vane curve
numerical simulation
experimentalinvestigation
