倾覆力矩作用下涡旋压缩机切向泄漏研究  

Research on Tangential Leakage of Scroll Compressor under Overturning Moment

作　　者：赵嫚[1] 安雄雄 杨洋 李通 ZHAO Man;AN Xiong-xiong;YANG Yang;LI Tong(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050

出　　处：《压缩机技术》2023年第2期8-13,共6页Compressor Technology

基　　金：国家自然基金项目(51265026)。

摘　　要：针对涡旋压缩机倾覆力矩作用下动涡盘倾覆造成的切向泄漏问题,在建立切向泄漏通道物理模型基础上,建立了切向楔形平板间气体泄漏数学模型,修正了泄漏面积的计算公式,并借助Fluent软件对单个压缩腔三维流场及泄漏量进行了分析。结果表明:倾角对泄漏面积、压缩腔内压力及速度极值产生影响,且对泄漏速度的影响大于对压力的影响,但对压力及速度场的分布规律基本无影响。切向泄漏量的理论计算与数值模拟对比分析表明,模拟值均大于理论值,理论值较模拟值要稳定,且随着倾角的增大,两者泄漏量的偏差逐渐减小,泄漏曲线趋势基本趋于一致,物理模型及数学模型可行。数学模型和研究结果可为涡旋压缩机的设计和性能分析提供一定的指导和借鉴作用。Aiming at the problem of tangential leakage caused by the overturning moment of orbiting scroll in scroll compressor,the mathematical model of gas leakage between tangential wedge-shaped plates was established based on the physical model of tangential leakage channel,and the calculation formula of leakage area was modified.The three-dimensional flow field and leakage rate of single compression chamber were analyzed by Fluent software.The results show that the inclination angle has an effect on the leakage area,the pressure and the velocity in the compression chamber,and the effect on the leakage velocity is greater than that on the pressure,but it has no influence on the distribution of the pressure and velocity field.The comparative analysis of theoretical calculation and numerical simulation of tangential leakage shows that the simulation value is greater than the theoretical value,and the theoretical value is more stable than the simulation value.With the increase of inclination angle,the deviation of leakage between the two gradually decreases,and the trend of leakage curve basically tends to be consistent.The physical model and mathematical model is feasible.The mathematical model and research results can provide some guidance and reference for the design and performance analysis of scroll compressor.

关 键 词：涡旋压缩机 物理模型 数学模型 倾角 数值模拟 

分 类 号：TH45[机械工程—机械制造及自动化]