涡旋压缩机静盘外壁面强化传热研究  

Heat transfer enhancement of outer surfaceof fixed scroll for scroll compressor

作　　者：周新华 肖必宏 戴明 邓捷 杨乃赞 李海生[3] ZHOU Xin-hua;XIAO Bi-hong;DAI Ming;DENG Jie;YANG Nai-zan;LI Hai-sheng(Hefei General Machinery Research Institute Co.Ltd.,Hefei 230031,China;Engineering Department,Xuzhou Power Supply Section of Shanghai Railway Bureau,Xuzhou 221000,China;School of ChemicalEngineering and Technology,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]合肥通用机械研究院有限公司,安徽合肥230031 [2]上海铁路局徐州供电段工程科,江苏徐州221000 [3]中国矿业大学化工学院,江苏徐州221116

出　　处：《机电工程》2020年第11期1323-1328,共6页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学青年基金资助项目(51105362)。

摘　　要：针对涡旋压缩机静盘散热不佳、变形不均匀的问题,对静盘外壁面进行了强化传热的研究。提出了弧形和直形两种结构的散热翅片模型,运用有限元分析方法,开展了静盘外壁面传热的数值模拟研究;通过分析不同转角下的静盘传热温度场、轴向热变形以及热应变结果,对两种散热翅片结构进行了合理性评价。研究结果表明:两种散热翅片结构的传热性能存在差异,在相同的条件下,弧形翅片的静盘壁面不同温区温度场传热效果更好,传热过程更加均匀,轴向变形和热应变较小,能够实现静盘外壁面的强化传热;该结果有助于降低动静涡旋齿间摩擦磨损,延长涡旋压缩机的使用寿命,为静盘外壁面强化传热提供可行方案。Aiming at the problems of poor heat dissipation and uneven deformation of the fixed scroll of scroll compressor,the heat transfer of outer wall surface for the fixed scroll was studied.Two models with arc-shaped and straight-shaped cooling fins were designed to enhance the heat transfer of the fixed scroll.The finite element analysis method was used to realize the numerical simulation of heat transfer on the fixed scroll outer wall.According to the results of heat transfer temperature field,axial heat deformation and thermal strain at different rotation angles,the two cooling fins were evaluated reasonably.The results indicate that the differences of heat transfer performance for two models are obvious.Under the same condition,the cooling fin with arc-shaped is more suitable than straight-shaped because of the uniform heat transfer,less axial deformation and thermal strain.The cooling fin with arc-shaped can realized the heat transfer enhancement of fixed scroll.These can not only reduce the friction and wear of scroll teeth,but also extend the life of the scroll compressor.It will provide a feasible solution for enhancing the heat transfer on the outer wall surface of fixed scroll.

关 键 词：涡旋压缩机 有限元分析 弧形翅片 强化传热 

分 类 号：TH457[机械工程—机械制造及自动化]