某旋转机械闭式叶轮推力的计算

Thrust Calculation of a Rotating Mechanical Enclosed Impeller

针对某旋转机械闭式叶轮,给出了叶轮推力的计算方法。汽封腔室中旋转因子的大小影响轮盘推力、轮盖侧推力,运用CFD数值计算,分析了汽封腔室中旋转因子的影响因素,得出漏气量大小对旋转因子的影响最显著,并且得出该旋转机械叶轮轮盖侧旋转因子取值0.55~0.60,轮盘侧取值0.40~0.46。

Thrust calculation method of a rotating mechanical enclosed impeller has been put forward.Rotating factor of gland seal chamber influenced impeller disk thrust and cover side thrust,further applying CFD numerical calculation,influence elements of rotating factor in gland seal chamber have been analyzed to determine that air leakage most affected rotating factor,it also worked out that rotating factor values are 0.55~0.60 at the cover side and 0.40~0.46 at the disk side of the rotating mechanical impeller.