液压与气动2025，Vol.49Issue(3)：73-80,8.DOI:10.11832/j.issn.1000-4858.2025.03.009
高压断路器操动机构液压阀控系统流场动态特性
Dynamic Characteristics of Flow Field in Hydraulic Valve Controlled System of High Voltage Circuit Breaker Operating Mechanism
摘要
Abstract
In view of the complexities and variability in the flow field of the hydraulic valve controlled system in high voltage circuit breaker operating mechanisms,this study focuses on the impact of valve opening on the dynamic characteristics of the flow field within the hydraulic cylinder,hydraulic valve,and return oil pipeline.Initially,the flow channel of a disc spring hydraulic operating mechanism is extracted and simplified by using ICEM software.Subsequently,the k-εturbulence model in STAR-CCM+software is employed to solve the flow field of the hydraulic valve controlled system of the high voltage circuit breaker operating mechanism,and the movement of the main valve spool is realized by the dynamic grid technology.The results demonstrate that the pressure at the lower end of the working cylinder calculated by simulation is consistent with the experimental data.The velocity of hydraulic oil increases rapidly when it passes through the valve port while forming two vortices between the bottom of the main valve spool and the valve body.Additionally,the pressure in the return oil pipeline fluctuates considerably with the movement of the main valve spool.关键词
液压阀/流场仿真/动网格/k-ε湍流模型Key words
hydraulic valve/flow field simulation/dynamic grid/k-εturbulence model分类
机械工程引用本文复制引用
刘煜,刘宇,朱文才,丁孺琦,李海文,刘森琪..高压断路器操动机构液压阀控系统流场动态特性[J].液压与气动,2025,49(3):73-80,8.基金项目
江西省自然科学基金(20242BAB25260) （20242BAB25260）
