螺杆压缩机内密封齿间隙泄漏量的数值仿真  

Numerical Analysis of the Addendum Clearance Leakage in Screw Compressor

作　　者：李敏[1] 王亚洲[1] 刁安娜[1] 肖鹏飞[1] 

机构地区：[1]中国船舶重工集团公司第七一一研究所,上海200072

出　　处：《压缩机技术》2013年第4期11-14,20,共5页Compressor Technology

摘　　要：通过CFD方法计算气体在三维齿顶间隙模型中的泄漏量,分析了气体在模型中的压力与速度分布,并研究了压差、密封齿的长度和高度对泄漏量的影响,并对现有的密封齿进行改进,仿真计算结果表明改进后的密封齿可以有效减少气体的泄漏量。The computational fluid dynamics equations are applied to numerically calculate leakage in addendum clearance.The pressure nephogram and velocity vectorgraph of gas in model are analyzed, the relationship between leakage and pressure difference, seal teeth length and height has been analyzed, and the existing seal teeth structure has been improved.The simulation results show that the improved seal teeth can reduce leakage effectively.

关 键 词：螺杆压缩机 密封齿 泄漏量 齿顶间隙 CFD 

分 类 号：TH455[机械工程—机械制造及自动化]