液压与气动Issue(6)：44-48,5.DOI:10.11832/j.issn.1000-4858.2018.06.009
阀芯行程对角座阀流量特性影响的数值研究
Experimental and Numerical Research on Influence of Spool Stroke on Flow Characteristics of Angle Seat Valve
摘要
Abstract
We study the influence of valve core stroke on flow characteristics of angle seat valve by combining numerical simulation with experimental research.The flow rates data with the valve core of 10 mm and 14 mm obtained from numerical simulation and experiments are compared.Then accuracy of the numerical simulation is verified.Further,velocity field,pressure field and flow vortex in the valve under different strokes are analyzed.The results show that with the increase of valve core stroke,the low pressure area at the valve outlet moves downstream gradually.Besides,the more concentrated high velocity area and the more regular flow vortex are found in the valve.Therefore,flow stability is better and flow resistance is smaller under a larger stroke,resulting in a higher flow coefficient.When the force of the valve core spring is within a reasonable range,the valve core stroke should be increased as much as possible to improve valve circulation ability.关键词
角座阀/流量试验/数值计算/流量特性/流阻特性Key words
angle seat valve/flow test/numerical calculation/flow characteristics/flow resistance characteristics分类
机械制造引用本文复制引用
王洋定,郑智剑..阀芯行程对角座阀流量特性影响的数值研究[J].液压与气动,2018,(6):44-48,5.基金项目
国家质检总局科技计划(2016QK085) （2016QK085）
