WZP系列管道爬行器在长输管道施工中的应用
Application of Serial WZP Pipeline Crawlers in Long Distance Transportation Pipeline Construction
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- DOI:
- 作者:
- 时焱1, 陈建平2
SHI Yan1
- 作者单位:
- 1. 大港油田集团工程建设公司, 天津 300272;
2. 华北石油工程建设公司, 河北任丘 062552
Engineering Construction Company of Dagang Oilfield Group,Tianjin 300272,China
- 关键词:
- 长输管道;焊接;无损检测;爬行器
long distance transmission pipeline;welding;nondestructive testing
- 摘要:
- 无损检测(DNT)在长输管道施工中是检测焊接质量的关键工序,针对长输管道输送压力大、距离长、焊口多的特点,对管道直径200mm以上长输管道采用爬行器进行管内周向曝光法X射线检测,对一道环焊缝的检测只需一次曝光便可完成。这与管外双壁透照的检测方法相比,提高了工作效率,保证了检测的灵敏度,从而确保了焊缝检测质量。
Nondestructive testing （NDT） is a essential working procedure in long distance transmission pipeline construction. According to the features of long distance transmission pipelines, such as high operational pressure, long distance and large number of welds, the crawlers are used for the pipelines with their diameters over 200 mm to carry out X ray inspection by internal pipe circumferential exposal. Thus, the inspection for one weld needs one exposal only. Comparing with the inspection method of external double walls transmission exposal, it has the advantages of higher operational efficiency and sensitivity, therefore to ensure the weld inspection quality.2008,6(6): 78-80 收稿日期：2008-9-26分类号：TE973.8作者简介：时焱（1958-），男，江苏沐阳人，高级工程师，1984 年毕业于西安石油学院，多年来从事焊接技术管理工作。