离心泵平衡孔位置对轴向力及外特性的影响  

The Influence of Balance Hole Position of Centrifugal Pump on Axial Force and External Characteristics

作　　者：牟介刚[1] 赵锦靖[1] 郑水华[1] 赵永攀[1] 陆河权[1] 汪慧[1] 

机构地区：[1]浙江工业大学,杭州310014

出　　处：《机械设计与制造》2012年第6期173-175,共3页Machinery Design & Manufacture

基　　金：浙江省科技厅重大专项(2008C01024-2)

摘　　要：以离心泵平衡孔平衡轴向力的方法为研究对象,利用计算机CFD技术和试验研究相结合的方法,对平衡孔径向位置与平衡轴向力的效果和泵的外特性的关系进行了深入研究。研究表明,平衡孔位置对轴向力和外特性影响有一定的规律,对平衡室内压力影响显著;随着平衡孔位置径向半径增大,平衡室内整体压力增大,轴向力也越大;径向半径越小,平衡轴向力的效果较好,但泄露量大,扬程和效率略有降低。The method of balancing the axial force of centrifugal pump by balance hole is taken as a research object.Based on the combined CFD technology and experimental research,the relationship between the radial position of balance hole and the effect of axial force,external characteristics of the pump is studied in-depth.Research shows that,the effect of balance hole location on the axial force and the external characteristics have certain law,which effect is significant in balancing the interior pressure;with the increase of radial radius of the balance hole location,the overall balance of interior pressure is increased,the greater the axial force is;the smaller radial radius is,the better the effect of axial force balance is,but leakage may increase and the stroke and efficiency is decreased slightly.

关 键 词：离心泵 轴向力 平衡孔位置 数值模拟 外特性 

分 类 号：TH16[机械工程—机械制造及自动化]