不同结构参数对排气座回流强度的影响  

Research of the Effect of Different Structure Parameters on the Backflow Intensity of Exhaust Seat

作　　者：王小明[1] 田青青[1] 熊国良[1] 吴志强[1] 张龙[1] 罗嗣骁 万长标[1] 

机构地区：[1]华东交通大学机电工程学院,南昌330013

出　　处：《组合机床与自动化加工技术》2014年第4期119-121,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家科技部科技人员服务企业行动项目(SQ2009GJC5005668);江西省科技支撑计划项目(2010BGB00601);江西省教育厅产学研合作资助项目(GJJ10005)

摘　　要：通过对双螺杆压缩机以排气座气道口形状、气管道容积以及形状等不同参数选用五种典型模型,分别采用CFD嵌入式滑移网格技术对排气座进行非定常数值模拟,从中提取各种参数下排气座回流强度数据,并对其进行分析比较,得出在不同参数下排气座回流分布情况,从而为螺杆压缩机排气座工程设计以及优化提供有利的依据。Five typical models with different gas crossing shapes, gas pipeline volume and shapes of twin-ro- tor screw compressor exhaust seat are used to make an unsteady numerical simulation by the use of CFD slid- ing meshing technology, and the backflow intensity data of exhaust seat under different parameters is with- drawn. Meanwhile, through analyzing and comparing the data, backflow distribution situations under differ- ent parameters are gained, which provide useful basis for the engineering design and optimization of screw compressor exhaust seat.

关 键 词：双吸平衡式 螺杆压缩机 排气座 滑移网格 数值模拟 

分 类 号：TH166[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]