Weld detection of pipeline with medium based on X-ray computed radiographic technology
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摘 要
采用便携式数字CR系统对某大型石化企业的400条压力管道进行了X射线计算机辅助成像检测(CR)。通过设置管道是否带料、采用不同射线源和是否考虑介质对透照的影响等三种情况的比对试验,验证了检测手段的可靠性及有效性。现场检测能发现管道对接焊缝的未焊透、未熔合、夹渣、气孔和裂纹等典型缺陷,并针对CR现场应用存在的一些问题进行了讨论,为CR技术在带料管道焊缝检测中的广泛应用奠定基础。
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Abstract
Using the portable digital CR system, the X-ray computer-aided image detection (CR) of 400 pressure pipelines in a large petrochemical enterprise was carried out. The reliability and effectiveness of the detection method are verified by the comparison test of whether the pipeline is equipped with medium, using different ray sources and considering the influence of the medium on the permeation. The typical defects of butt weld of pipeline, such as incomplete penetration, incomplete fusion, slag inclusion, air hole and crack, can be found in the field inspection. Some problems existing in the field application of CR are discussed, which lays a certain foundation for the wide application of CR technology in the inspection of weld seam of pipeline with medium.
中图分类号 TG115.28 DOI 10.11973/wsjc202004008
所属栏目 试验研究
基金项目 浙江省质监系统质量技术基础建设项目(20180119)
收稿日期 2020/1/21
修改稿日期
网络出版日期
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联系人作者柴军辉(cjh@nbanji.com)
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备注毛国均(1978-),男,硕士,高级工程师,主要从事承压类特种设备无损检测研究工作
引用该论文: MAO Guojun,CHAI Junhui,ZHANG Zijian,ZHANG Xiaolong,Lü Zhongjie,XUE Bingkang,HU Jian,HUANG Xiaojiang. Weld detection of pipeline with medium based on X-ray computed radiographic technology[J]. Nondestructive Testing, 2020, 42(4): 36~41
毛国均,柴军辉,张子健,张小龙,吕钟杰,薛秉康,胡健,黄小江. 基于 X射线计算机辅助成像技术的带料管道焊缝检测[J]. 无损检测, 2020, 42(4): 36~41
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参考文献
【1】张辉宇,张瑞轩. CR检测技术在长输管道上的应用[J]. 无损检测, 2016,38(8): 60-64.
【2】孙朝明,孙忠诚,曾祥照.数字射线成像中归一化信噪比指标的分析讨论[J]. 无损检测, 2017,39(10): 42-48.
【3】王彬,华雄飞,钟华,等.计算机射线照相(CR)分辨率对图像质量的影响[J]. 中国电力, 2016,49(4): 149-153.
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【2】孙朝明,孙忠诚,曾祥照.数字射线成像中归一化信噪比指标的分析讨论[J]. 无损检测, 2017,39(10): 42-48.
【3】王彬,华雄飞,钟华,等.计算机射线照相(CR)分辨率对图像质量的影响[J]. 中国电力, 2016,49(4): 149-153.
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