焊管2026，Vol.49Issue(1)：59-64,74,7.DOI:10.19291/j.cnki.1001-3938.2026.01.007
B型套筒结构尺寸优化设计研究
Research on Optimization Design of Structural Dimensions for B-type Sleeves
汪怡心 1马孝亮 1杨志军 1郭旭 1郭一帆1
作者信息
- 1. 中国石油塔里木油田分公司 油气运销事业部,新疆 库尔勒 841000
- 折叠
摘要
Abstract
A pipeline defect model and a B-type sleeve welding model were established to address issues such as unreasonable sleeve geometric dimensions,excessive design wall thickness,and cracking of fillet welds caused by the use of B-type sleeves.The distribution patterns of equivalent stress and residual stress in B-type sleeve repair welding for defects of different sizes were studied,and recommendations for key parameters of B-type sleeve design geometric dimensions were provided.Results indicate that the length,width,and depth of pipeline defects only affect the magnitude of defect stress and have little effect on the range of stress concentration.However,the size of the defect distance from the end of the sleeve provided in the standard is too small and does not consider the impact of defects on equivalent stress.The welding residual stress of B-type sleeve fillet weld will increase with the increase of sleeve length and sleeve thickness.As the sleeve wall thickness increases,the welding residual stress at the fillet weld gradually increases,but the maximum equivalent stress on the outer surface of the pipeline first decreases and then increases.The sleeve wall thickness should be controlled between 1 and 1.4 times the pipeline wall thickness.关键词
B型套筒/管道缺陷/角焊缝焊接残余应力/最大等效应力/尺寸优化Key words
B-type sleeve/pipeline defect/welding residual stress of fillet weld/maximum equivalent stress/size optimization分类
能源科技引用本文复制引用
汪怡心,马孝亮,杨志军,郭旭,郭一帆..B型套筒结构尺寸优化设计研究[J].焊管,2026,49(1):59-64,74,7.
