不同缩口下闸阀介质流动特性研究  

Study on Medium Flow Characteristics under Different Shrinkage of Gate Valves

作　　者：陈雪峰[1] 李洪武 张定三 彭波[1] 陈荣昌[1] 段永松 CHEN Xue-feng;LI Hong-wu;ZHANG Ding-san;PENG Bo;CHEN Rong-chang;DUAN Yong-song(China Valve Co.,Ltd.,Zigong 643001,Sichuan,China;China Nuclear Power Engineering Co.,Ltd.,Shenzhen 518124,Guangdong,China)

机构地区：[1]华夏阀门有限公司,四川自贡643001 [2]中广核工程有限公司,广东深圳518124

出　　处：《阀门》2024年第6期661-666,共6页VALVE MAGAZINE

摘　　要：阀门的缩口比是阀门使用单位及生产单位关注的重要因素,直接关系到机组运行性能参数。文中分别以DN100和DN350闸阀,以缩口比0.75、0.8、0.85、0.90、0.95及1.0建立三维模型,并利用FLUENT软件进行流场模拟分析,模拟不同缩口的闸阀内介质的流动状态,获取其速度场和压力场,并计算出不同缩口下阀门的流阻系数。根据流阻系数计算出工况参数下阀门压力损失,为阀门使用单位及生产制造单位提供选型参考方案。The shrink ratio of the valve is an important factor concerned by valve user and manufactur-er,which is directly related to the unit operating performance parameters.In this paper,DN100 and DN350 gate valve are used to build 3D models with the shrink ratio of 0.75,0.8,0.85,0.90,0.95 and 1.O,obtain the velocity field and pressure field,calculate the flow resistance coefficient of different shrink valves.According to flow resistance coefficient of gate valve,calculate the pressure loss.Pro-vide reference schemes for valve users and manufacturing units.

关 键 词：缩口比 流场模拟 压力损失 流阻系数 

分 类 号：TH134[机械工程—机械制造及自动化]