离心泵稳态密封间隙力的计算分析  

Analysis of Static Hydraulic Forces in Annular Seals

作　　者：张新敏[1] 夏延秋 赵清[1] 周晓晔[1] 

机构地区：[1]沈阳工业大学机械工程学院,沈阳110023

出　　处：《润滑与密封》2004年第4期63-65,共3页Lubrication Engineering

摘　　要：在综合考虑层流、湍流、介于层流与湍流之间的过渡区以及惯性影响的基础上建立了湍流润滑Reynolds方程 ,通过数值求解计算出离心泵环状间隙密封内的压力场 ,进而求得对应的密封间隙力及泄漏量。结果表明 ,数值计算结果与文献给出的实验结果具有较好的一致性 ,表明所提出的计算方法具有较高精度 ,可为离心泵转子系统的设计提供可靠的量化依据。结合实例对影响密封间隙力的一些主要因素进行了分析。The static hydraulic forces of annular plain seals were investigated theoretically.The Reynolds equation was established in consideration of the influence,including laminar,turbulent,transition regimes as well as inertia effect.By numerical solution of the equation the pressure distribution along and around the annular seals was gotten.Furthermore,the static hydraulic forces and leakage rate were obtained.Numerical predictions show good agreement with available experimental results.The effects of eccentricity and clearance on the performance of the hydraulic forces were discussed as a reference case.

关 键 词：离心泵 稳态特性 稳态密封间隙力 环状间隙密封 数值计算 

分 类 号：TH311[机械工程—机械制造及自动化]