涡旋压缩机平衡铁结构对阻力矩的影响研究  

Study on Influence of Balance Iron Structure on Resistance Torque of Scroll Compressor

作　　者：刘兴旺[1] 蒋强强 刘晓明 陈荣道 李远航 李登辉 LIU Xing-wang;JIANG Qiang-qiang;LIU Xiao-ming;CHEN Rong-dao;LI Yuan-hang;LI Deng-hui(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China;State Key Laboratory of Compressor Technology(Anhui Laboratory of Compressor Technology),Anhui 230031,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]压缩机技术国家重点实验室(压缩机技术安徽省实验室),合肥安徽230031

出　　处：《压缩机技术》2024年第1期8-13,37,共7页Compressor Technology

基　　金：压缩机技术国家重点实验室(压缩机技术安徽省实验室)开放基金项目(SKL-YSJ202110)。

摘　　要：针对涡旋压缩机平衡铁随主轴旋转时产生的阻力损失问题,提出了圆角结构及机翼型结构平衡铁。运用Fluent有限元分析软件,结合滑移网格技术对平衡铁工作区域模拟,研究了3种不同结构平衡铁所受的压差阻力矩和摩擦阻力矩,对比分析了不同结构产生的阻力矩大小。结果表明:压差阻力矩占总阻力矩的90%以上,总阻力矩随转速的增大而增大;相对于样机平衡铁,前后端面为圆角的平衡铁总阻力矩减小了30%~50%之间;机翼型平衡铁总阻力矩减小了55%~65%之间。Aiming at the problem of resistance loss caused by the balance iron of scroll compressor rotating with the spindle,the balance iron of fillet structure and wing structure was proposed.Using Fluent finite element analysis software,combined with sliding mesh technology to simulate the working area of balanced iron,the differential pressure resistance torque and friction resistance torque of three different structures of balanced iron were studied,and the resistance torque generated by different structures was compared and analyzed.The results show that the differential resistance torque accounts for more than 90%of the total resistance torque,and the total resistance torque increases with the increase of rotational speed.Compared with the prototype balance iron,the total resistance torque of the balance iron with rounded ends is reduced by 30%~50%.The total resistance torque of the wing-type balance iron is reduced by 55%~65%.

关 键 词：涡旋压缩机 有限元分析 平衡铁 阻力矩 结构优化 

分 类 号：TH45[机械工程—机械制造及自动化]