旋启式止回阀动水力矩探究  

Research on Dynamic Hydraulic Torque of Swing Check Valve

作　　者：余建平[1] 焦艳平 王美琪 韩永东 胡爽 张佩 刘雨 YU Jian-ping;JIAO Yan-ping;WANG Mei-qi;HAN Yong-dong;HU Shuang;ZHANG Pei;LIU Yu(College of Petroleum and Chemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学石油化工学院,兰州730050

出　　处：《当代化工》2021年第9期2246-2250,共5页Contemporary Chemical Industry

基　　金：甘肃省自然科学基金(项目编号:1610RJZA029)。

摘　　要：探究旋启式止回阀在开启与关闭的动态过程中出现颤振、水击和噪声等复杂的物理过程。为了进一步探究其内部流场,采用了计算流体力学方法建立结构三维仿真模型,分析旋启式止回阀阀板在15°、25°、35°、45°、55°下的速度、压力,分别计算该止回阀在5个开度下对应的流阻系数,对其在开启过程流场动态变化情况进行流体仿真计算,通过可视化研究获得阀动水力矩-开度的曲线。The dynamic characteristics of the swing check valve in engineering practice were studied, such as the vibration, noise and flap motion characteristics. The CFD method was used to establish a finite element model for structural statics simulation analysis, and the valve plate was analyzed in stress and deformation results at various angles;a finite element model was established to calculate the flow resistance coefficient, calculate the flow resistance coefficient of the check valve at various openings;the flow field change during the opening process was simulated and calculated;the curve of valve dynamic torque was obtained through visualization study.

关 键 词：止回阀 ANSYS 动水力矩系数 

分 类 号：TH137.523[机械工程—机械制造及自动化] O352[理学—流体力学]