球阀开度及入口速度对固-液两相流场的影响  

Influence of opening and inlet velocity of the ball valve on solid-liquid two-phase flow field

作　　者：加万里[1] 王勇[2] 高勇[3] JIA Wanli;WANG Yong;GAO Yong(Xi′an Aerospace Propulsion Test Technique Institute,Xi′an 710100,China;Shaanxi Yanchang Petroleu m(Group)Co.Ltd.,Xi′an 710075,China;School of Chemistry and Chemical Engineering,Yulin University,Yulin 719000,China)

机构地区：[1]西安航天动力试验技术研究所,陕西西安710100 [2]陕西延长石油(集团)有限责任公司,陕西西安710075 [3]榆林学院化学与化工学院,陕西榆林719000

出　　处：《化工科技》2024年第1期1-4,30,共5页Science & Technology in Chemical Industry

基　　金：国家自然科学基金项目(22268047);陕西省教育厅重点科学研究计划项目(22JS048);榆林市科技局产学研项目(CXY-2022-77)。

摘　　要：球阀广泛应用于固-液两相流的运输和流量调节。利用有限元软件研究球阀不同开度和不同入口速度下流场的变化,对于设计、制造球阀及优化球阀结构具有一定的指导意义。结果表明,阀门开度越大,轴截面流线越平直,压力梯度、速度梯度和流阻系数越小,流动状态越稳定;入口速度越大,轴截面流线越弯曲,压力和速度变化越明显,流动状态越紊乱,但流阻系数与入口流速无关。Ball valves are widely used in the fluid transport and flow regulation for the solid-liquid two-phase flow.In this paper,finite element software was used to investigate the flow field of a ball valve with different opening and inlet velocity,which had certain guiding significance for the design,manufacture,and the structure optimization of the ball valves.The results show that when the valve opening is large,the streamlines of the axial section are flatter,the pressure gradient,velocity gradient and flow resistance coefficient are smaller,and the flow state is more stable.When the inlet velocity is large,the streamlines of the axial section are more curved,the pressure and velocity change is more obvious,and the flow state is more derangement.However,the flow resistance coefficient has no relationship with the inlet velocity.

关 键 词：球阀 两相流 有限元 流阻系数 

分 类 号：TH134[机械工程—机械制造及自动化]