微型涡旋压缩机切向泄漏流动特性与数值分析  

Tangential Leakage Flow Characteristics and Numerical Analysis of Micro Scroll Compressor

作　　者：黄磊 王玉 何鸿斌 张宇希 刘伟 陈雪辉 HUANG Lei;WANG Yu;HE Hongbin;ZHANG Yuxi;LIU Wei;CHEN Xuehui(School of Mechanical and Electrical Engineering,Anhui Jianzhu University,Hefei Anhui 230601,China;Hefei Bolin Advanced Materials Co.,Ltd.,Hefei Anhui 230088,China)

机构地区：[1]安徽建筑大学机械与电气工程学院,安徽合肥230601 [2]合肥波林新材料股份有限公司,安徽合肥230088

出　　处：《机床与液压》2023年第9期157-163,共7页Machine Tool & Hydraulics

基　　金：国家自然科学基金面上项目(51875152);安徽省重点研究与开发计划项目(202004a05020066,202104a05020049);安徽省高校省级自然科学重点研究项目(KJ2020A0489);安徽省高校省级优秀青年人才基金项目(gxyq2020034)。

摘　　要：针对微型涡旋压缩机工作腔内流场运动状态和切向泄漏特性难以通过实验测试获取的问题,以带有径向间隙的动、静涡旋盘啮合形成的三维流体模型为研究对象,采用CFD动网格技术,建立结构化网格和定义边界运动,探索月牙形压缩腔在工作过程中腔内流体的瞬态分布情况,研究径向间隙导致切向泄漏的工作腔内温度场、速度场和压力场瞬态分布规律。结果表明:切向泄漏对温度场和速度场不均匀分布情况影响较大,对压力场影响较小,在啮合间隙处压力和温度呈梯度变化,速度出现极值;平均进、出口质量流量和泄漏量与转速成正比。For those problems arising from the motion state of the flow field and tangential leakage characteristics in the working cavity of a micro scroll compressor are hard to catch through experimental tests,taking the 3-D fluid model formed by the meshing of dynamic and static scroll disks with radial clearance as the research object,CFD dynamic mesh technology was applied to establish a structured mesh and define the marginal motion,the transient distributions of fluid in the working process of crescent compression cavity were explored.The transient distribution laws of temperature field,velocity field and pressure field in the compression working chamber caused by radial clearance were studied.The results show that the tangential leakage has a massive impact on the inhomogeneous distribution of temperature and velocity field,and it has a small influence on the pressure field,at the meshing gap,the pressure and temperature change in a gradient,and the velocity has an extreme value;the average inlet and outlet mass flows and leakage are directly proportional to the speed.

关 键 词：微型涡旋压缩机 切向泄漏 结构化网格 数值分析 

分 类 号：TH45[机械工程—机械制造及自动化]