离心泵旋转轴的磁流体密封实验研究  

Experimental Study on Magnetic Fluid Seal of Centrifugal Pump

作　　者：娄磊[1] 杨逢瑜[1] 陈君辉[1] 王顺[1] 王其磊[1] 

机构地区：[1]兰州理工大学磁物理与磁技术研究所,甘肃兰州730050

出　　处：《润滑与密封》2009年第5期69-71,75,共4页Lubrication Engineering

摘　　要：介绍了离心泵旋转轴的磁流体密封技术,通过实验分析了泵的转速、温度、密封间隙、磁极极数和磁液体体积对磁流体密封承压能力的影响。结果表明:磁流体密封的承压能力随密封间隙、温度和转速的增加而下降,随磁流体量的增加和磁极极数的增多而提高,但当磁流体量超过一临界值和极数超过5极后,磁流体密封的承压能力保持在某一恒定值。The sealing technologies of magnetic fluid for centrifugal pump were introduced, the effect of pump rotation rate, temperature, seal clearance, pole number and magnetic liquid volume on the pressure bearing capacity of magnetic flu- id seal was analyzed. The results show that the pressure bearing capacity of magnetic fluid seal decreases when seal clear- ance, temperature and rotation rate increase, and increases when magnetic liquid volume and pole number increase. When magnetic fluid volume exceeds a certain critical value and pole number is more than five, the pressure bearing capacity maintains at a constant value.

关 键 词：离心泵 磁流体 密封 旋转轴 

分 类 号：TM201.3[一般工业技术—材料科学与工程]