新型平衡鼓凹槽长度对平衡力和泵性能的影响  

Influence of the Grooves Length of New Type Balance Drum on Balance Force and Performance of Centrifugal Pump

作　　者：牟介刚[1] 陆河权[1] 郑水华[1] 金建波[1] 汪慧[1] 赵锦靖[1] 

机构地区：[1]浙江工业大学机械工程学院,浙江杭州310014

出　　处：《轻工机械》2011年第6期101-104,共4页Light Industry Machinery

基　　金：浙江省重大专项项目(2010C11017);(2008C01024-2)

摘　　要：提出了一种带凹槽的新型平衡鼓结构,并通过数值模拟和试验研究分析了5种不同凹槽长度对新型平衡鼓间隙泄漏量、2侧压差的影响及泵的性能和残余轴向力变化情况。研究结果表明:凹槽长度是影响新型平衡鼓间隙泄漏量及轴向平衡能力的重要因素,当凹槽长度大约为平衡鼓轴向长度的三分之一时,新型平衡鼓装置间隙处存在最小泄漏量,泵的效率较高,轴向力的平衡效果也最好。The paper presented a new type of balance drum with grooves, and analyzed the influence of 5 kinds of different lengths of grooves on performance of centrifugal pump and balance force such as new-type balance clearance leakage, 2-side differential pressure the peocormance of pump and the variation of residual axial force etc. by the method of CFD simulations and experiments. The results of study show that grooves length is an important factor to influence on the new- type balance drum, clearance leak and axial balance capability, there is least leakage in the clearance and best performance to balance the axial force when the length of grooves is 1/3 of the length of the new balance drum. [ Ch ,5 fig. 1 tab. 10 ref. ]

关 键 词：流体输送 多级离心泵 数值模拟 轴向力 平衡鼓 间隙泄漏 

分 类 号：TH311[机械工程—机械制造及自动化]