采气管线浮动式球阀迎流面的冲蚀进化特性

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郑思佳^1*，罗敏¹，别沁¹，刘颖¹，敬加强²

1. 中国石油西南油气田分公司输气管理处，四川成都 610213
2. 西南石油大学石油工程学院，四川成都 610500

收稿日期:2017-09-29修回日期:2018-03-14出版日期:2018-10-22发布日期:2018-10-12
通讯作者:郑思佳

基金资助:四川盆地气田开发地面系统安全清洁高效运行关键技术研究与应用

Characters of erosion evolution on upstream surface of floating ball valves used in gas flow line

Sijia ZHENG^1*, Min LUO¹, Qin BIE¹, Ying LIU¹, Jiaqiang JING²

1. Gas Transmission Management Division of Southwest Oil & Gas Field Company of CNPC, Chengdu, Sichuan 610213, China
2. School of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2017-09-29Revised:2018-03-14Online:2018-10-22Published:2018-10-12

摘要/Abstract

摘要： 基于冲蚀实验和数值模拟，采用3D成像技术、动网格方法研究了典型开度30%时浮动式球阀迎流曲面的冲蚀进化，提出了能概括各因素随时间变化的冲蚀进化模型. 结果表明，冲蚀过程中严重磨损区域(迎流面中部B, E和H处)冲蚀速率呈降低趋势，用250 kg粉尘冲蚀后冲蚀速率为减薄前的0.9倍，用350 kg粉尘冲蚀后冲蚀速率为减薄前的0.825倍，用450 kg粉尘冲蚀后冲蚀速率为减薄前的0.755倍；在流速9~80 m/s，粉尘粒径35~500 ?m和体积浓度1.6?10–13~5.7?10–6的球阀阀芯迎流面冲蚀下，冲蚀进化模型计算值与实验值的误差小于20%；流速19~80 m/s、粉尘粒径150~230 ?m和体积浓度1.68×10–7~2.6×10–5且几何模型与球阀迎流曲面不相似时，可将预测值和实验值控制在同一数量级.

引用本文

郑思佳罗敏别沁刘颖敬加强. 采气管线浮动式球阀迎流面的冲蚀进化特性[J]. 过程工程学报, 2018, 18(5): 942-950.
Sijia ZHENG Min LUO Qin BIE Ying LIU Jiaqiang JING. Characters of erosion evolution on upstream surface of floating ball valves used in gas flow line[J]. Chin. J. Process Eng., 2018, 18(5): 942-950.

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