基于流固耦合的轴流式止回阀开启过程仿真  

Process simulation for the opening of axial flow check valves based on fluid-solid coupling

作　　者：段峰波 闵希华 汪开雄 李科 DUAN Fengbo MIN Xihua WANG Kaixiong LI Ke(Zigong New Dipper Valve Co. Ltd. PetroChina West Pipeline Company)

机构地区：[1]自贡新地佩尔阀门有限公司 [2]中国石油西部管道公司

出　　处：《油气储运》2016年第9期964-969,共6页Oil & Gas Storage and Transportation

基　　金：中国石油天然气集团公司重大科技专项"油气管道关键设备国产化";2012E-2802

摘　　要：轴流式止回阀是长输管道的泵或压缩机出口防止介质倒流的关键设备。从分析轴流式止回阀开启原理着手,建立数学模型,结合实际工况参数,采用流固耦合方法和动网格技术,优化设计并仿真计算了轴流式止回阀动态开启过程。通过分析压降流量曲线和位移流量曲线,得出决定轴流式止回阀开启的关键因素是流量条件,同时指出了轴流式止回阀的稳定工作区域。研究结果通过了工业性试验和现场验证,为设计制造既能稳定工作又能控制压降的轴流式止回阀提供了新的途径。Axial flow check valve is a key device which is installed at the outlets of pumps or compressors on the longdistance pipelines to prevent the medium from flowing backwards. In this paper, analysis was conducted on the opening principles of axial flow check valves, and mathematical model was established. Combined with the actual working parameters, fluid-solid coupling method and moving grid technology were used to optimize and simulate the dynamic opening process of such valves. Based on the analysis on pressure drop flow curves and displacement flow curves, it is concluded that flow condition is the key element to control the opening of axial flow check valves, and the stable performance region of the axial flow check valves is also identified. The study results have been proved in industrial tests and field applications. This study provides a new way to design axial flow check valves which can not only realize stable behavior but also control the pressure drop.

关 键 词：轴流式止回阀 动态开启 稳定工作区域 流固耦合 动网格 压降 

分 类 号：TE974[石油与天然气工程—石油机械设备]