[1]刘迎来,许 彦,张 超,等.输气管道在役修复过程中温度场分布的研究[J].焊管,2021,44(11):1-6.[doi:10.19291/j.cnki.1001-3938.2021.11.001]
 LIU Yinglai,XU Yan,ZHANG Chao,et al.Study on Temperature Field Distribution during in-service Repair of Natural Gas Pipeline[J].,2021,44(11):1-6.[doi:10.19291/j.cnki.1001-3938.2021.11.001]
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输气管道在役修复过程中温度场分布的研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
第44卷
期数:
2021年第11期
页码:
1-6
栏目:
试验与研究
出版日期:
2021-11-28

文章信息/Info

Title:
Study on Temperature Field Distribution during in-service Repair of Natural Gas Pipeline
文章编号:
10.19291/j.cnki.1001-3938.2021.11.001
作者:
刘迎来许 彦张 超魏祥和强富平
1.中国石油集团石油管工程技术研究院,西安710077;2.国家管网西部管道公司,乌鲁木齐 830011
Author(s):
LIU Yinglai XU Yan ZHANG Chao WEI Xianghe QIANG Fuping
1. CNPC Tubular Goods Research Institute, Xi’an 710077, China; 2. PipeChina West Pipeline Company, Urumqi 830011, China
关键词:
输气管道管道修复再加热温度温度场控制
Keywords:
natural gas pipeline pipeline repair reheating temperature temperature field control
分类号:
TG441.4
DOI:
10.19291/j.cnki.1001-3938.2021.11.001
文献标志码:
A
摘要:
针对高强度管线钢再热失强及角焊缝延迟开裂问题,研究了不同气体流速下管线钢管感应加热温度的分布及不同中频加热功率对角焊缝堆焊处预热温度场分布的影响。结果发现,在加热温度不高于400℃的条件下,管体强度未发生降低;在气体流速不低于10 m/s的条件下,控制中频加热功率不低于200 kW,可有效防止角焊缝处发生延迟开裂。研究表明,管体表面温度场分布受气体流速的影响,通过控制中频加热功率及再加热温度,可有效改善B型套筒角焊缝处延迟裂纹的产生及管体再热失强问题,从而确保在管体不停输状态下进行修复作业。
Abstract:
Aiming at the problems of reheating strength loss and delayed cracking of fillet weld of high-strength pipeline steel, the distribution of induction heating temperature of pipeline steel pipe under different gas flow rate and the influence of different medium frequency heating power on the distribution of preheating temperature field at fillet weld surfacing were studied. The results show that the strength of the pipe does not decrease when the heating temperature is less than 400 ℃; When the gas flow rate is not less than 10 m/s and the medium frequency heating power is controlled not less than 200 kW, delayed cracking can be effectively prevented at the fillet weld. The research shows that the surface temperature field distribution of the pipe is affected by the gas flow rate. By controlling the medium frequency heating power and reheating temperature, the problem of delayed cracks at the fillet weld of type B sleeve and reheat strength loss of the pipe can be effectively improved, so as to ensure the repair operation can be done without stopping the transmission.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-06-24作者简介:刘迎来(1964—),男,高级工程师,主要从事输送管道工程用高强度弯管及管件新产品的研制开发、失效分析、技术支撑服务及重要输送管线现场事故处理等工作。
更新日期/Last Update: 2021-12-09