API油管接箍液固两相流体冲蚀数值模拟  

Numerical Simulation of Erosion for API Round Thread Connection in a Solid-liquid Two-phase Flow

作　　者：程嘉瑞[1] 杨向同[2] 李臻[1] 窦益华[1] 仝少凯[1] 

机构地区：[1]西安石油大学机械工程学院,西安710065 [2]中国石油塔里木油田公司工程院,库尔勒841000

出　　处：《腐蚀与防护》2013年第12期1067-1071,共5页Corrosion & Protection

基　　金：国家重大科技专项(2011ZX05046-04);陕西省教育厅项目(11JK0871);塔里木油田公司项目(H13015);西安石油大学全日制硕士研究生创新基金(2012cx110420)

摘　　要：采用射流试验得到了超级13Cr钢半经验预测模型,结合数值计算进行API油管接箍冲蚀模拟,得出了API油管接箍冲蚀速率分布规律。模拟结果表明,接箍凹槽内壁面冲蚀速率远小于油管内壁;最大冲蚀速率产生于直冲壁面;冲蚀速率随排量增加而增大,排量达到6 m^3/min时冲蚀速率出现极大值点;砂比40%时冲蚀影响最严重。To predict the erosion of API round thread connection, the semi-empirical equation which getting from jet experiment was employed to make calculation. Then the flow characteristics in the connection of API round thread tube were simulated. It was suggested that the most serious erosion area was the forward-facing step（FWFS）. The erosion rate increased with time and the maximum erosion rate occurred in the displacement of 6 m3/min and 40% volume fraction of solid.

关 键 词：接箍 API油管 液固两相流体 冲蚀 数值模拟 

分 类 号：TG174[金属学及工艺—金属表面处理]