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.
出处
《腐蚀与防护》
CAS
北大核心
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)
关键词
接箍
API油管
液固两相流体
冲蚀
数值模拟
thread connection
API tubing
solid-liquid two-phase flow
erosion
numerical simulation
作者简介
通信作者：程嘉瑞，硕士研究生，从事过程设备的腐蚀、防损与延寿技术的研究，18092492490，cjr88112@163．com
