磁力驱动泵隔离套对冷却流道流场特性影响机制研究  

Study on the Influence Mechanism of Magnetic Drive Pump Isolation Sleeve on the Flow Field Characteristics of Cooling Flow Channel

作　　者：秦娟娟[1] 王栋梁[1] 林小军[1] 刘君[1] 尹新权[1] 邢永忠 QIN Juanjuan;WANG Dongliang;LIN Xiaojun;LIU Jun;YIN Xinquan;XING Yongzhong(Lanzhou Institute of Technology,Lanzhou Gansu 730050,China;Lanzhou Hyland Pump Industry Co.,Ltd.,Lanzhou Gansu 730070,China)

机构地区：[1]兰州工业学院,甘肃兰州730050 [2]兰州海兰德泵业有限公司,甘肃兰州730070

出　　处：《机床与液压》2021年第16期140-144,149,共6页Machine Tool & Hydraulics

基　　金：甘肃省高等学校科学研究项目(2018A⁃129);兰州工业学院“开物”科研团队(2018KW⁃04);兰州工业学院2019年度“启智”人才培养计划(2019QZ⁃01);甘肃省高等学校创新能力提升项目(2019A⁃141)。

摘　　要：为探究不同隔离套壁厚下磁力驱动泵冷却工作介质流经隔离套工作间隙所产生压力损失对隔离套性能的影响,对隔离套的结构尺寸及隔离套工作间隙变化时冷却循环流道流场特性进行探讨。利用SolidWorks和ANSYS Workbench建立冷却循环流道等比例三维模型,基于SIMPLC算法和RNGκ-ε模型,利用Fluent仿真分析磁力驱动泵冷却流道内部流场特性,计算可得:冷却工作介质进入导流孔后形成漩涡引起局部压力损失;流经隔离套底部进入泵轴中心回流孔处压力损失最大;流经隔离套工作间隙存在压力损失并随隔离套工作间隙的增大而减小,隔离套壁厚为0.8 mm且工作间隙2.6 mm时,压力损失值最小为2000 Pa,此数据为隔离套的结构优化提供参考。In order to explore the effect of pressure loss on the performance of the isolating sleeve caused by the flow of the cooling working liquidity of the magnetic drive pump through the work gap of the isolating sleeve under different wall thickness,the flow field characteristics of the cooling circulating channel under the change of structure size and work gap of the isolation sleeve were discussed.Using SolidWorks and ANSYS Workbench,a three dimensional model of the cooling circulation channel was established.Based on SIMPLC algorithm and RNGκ-εmodel,the characteristics of the internal flow field in the cooling channel of the magnetic drive pump were analyzed using Fluent simulation.The calculation results are as follows:the local pressure loss is caused by vortex formation of cooling working liquidity after entering the diversion hole;the maximum pressure loss is caused by the flow through the bottom of the isolation sleeve into the central return hole of the pump shaft;a pressure loss exists in the working gap of the isolation sleeve and decreases with the increase of the working gap of the isolation sleeve;when the wall thickness of the isolation sleeve is 0.8 mm and the working gap is 2.6 mm,the minimum pressure loss value is 2000 Pa,which provides reference for the structural optimization of the isolation sleeve.

关 键 词：隔离套壁厚 工作间隙 冷却流道 流场特性 压力损失 

分 类 号：TQ460.5[化学工程—制药化工]