农业工程学报2012，Vol.28Issue(7)：86-90,5.DOI:10.3969/j.issn.10026819.2012.07.015
屏蔽泵轴向力平衡新方法
New method for axial force balance of canned motor pump
摘要
Abstract
The magnitude of axial force has great impacts on the life and efficiency of canned motor pump. Because the traditional balance methods can not completely eliminate the axial force of canned motor pump, it is quite necessary to create new technique. Based on the analysis and calculation of axial force of canned motor pump, an auxiliary impeller was designed using the method of examination calculation. The auxiliary impeller drives coolant in the cooling circuit, and generates an axial force which is equal and opposite to axial force by the main impeller and rotor gravity force, thereby the axial force was eliminated. Through the axial force comparisons between theory calculation and experimental measurement, the residual axial force of canned motor pump is small, and the calculation results are basically consistent with experimental measurements. The practical application indicates that the new axial force balance method of canned motor pump is reliable and the calculation is correct. The new method can basically eliminate the residual axial force, reduce the bearing load and extend bearing life, so the canned motor pump can run safely and reliably. These research achievements are also valuable for engineering application.关键词
离心泵/轴向载荷/计算/平衡方法/副叶轮Key words
centrifugal pumps/axial loads/calculations/balance method/auxiliary impeller分类
机械制造引用本文复制引用
李伟,施卫东,蒋小平,王准,孔繁余..屏蔽泵轴向力平衡新方法[J].农业工程学报,2012,28(7):86-90,5.基金项目
江苏省自然科学基金项目(BK 2011505) （BK 2011505）
江苏高校优势学科建设工程资助项目 （）
江苏高等学校优秀科技创新团队计划项目(苏教科[2009]10号) （苏教科[2009]10号）
江苏省高校自然科学基金项目(09KJD570001) （09KJD570001）
江苏省研究生创新计划项目(CX09B 196Z) （CX09B 196Z）
