Large-bore pipe ring welded seam phased-array ultrasonic automatic detection system

An automatic detection technology for large-diameter pipes, which is applied to the analysis of solids using sound waves/ultrasonic waves/infrasonic waves. It can solve the problems of subjective factors in the detection results, difficulty in measuring its own height, and decreased human white blood cells. It has a wide range of probe adaptation. , small number of probes and great flexibility

Inactive Publication Date: 2003-04-23
中国石油天然气管道科学研究院有限公司 +3
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Problems solved by technology

[0005] 1. The detection speed is slow, especially for the detection of pipeline girth welds, the detection speed is even slower, which seriously affects the progress of the projects involved
[0006] 2. The test results have subjective factors and are related to the level and responsibility of the operator
[0007] 3. It is very difficult to measure the depth direction of the defect or the height of the defect itself, so it is difficult to realize the engineering critical analysis using ECA
[0008] 4. Radiographic flaw detection has serious harm to human health. Excessive workload can cause human white blood cell drop and even lead to leukemia
[0009] 5. In the detection of weld seam quality of pipes with different wall thicknesses, pipe diameters and materials, there are difficulties in system adjustment, narrow adaptability of probes and heavy equipment

Method used

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  • Large-bore pipe ring welded seam phased-array ultrasonic automatic detection system
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  • Large-bore pipe ring welded seam phased-array ultrasonic automatic detection system

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Embodiment Construction

[0041] Please refer to Figure 1 and combine figure 2 As shown, the phased array ultrasonic automatic detection system for large-diameter pipeline girth welds of the present invention includes a main control part 1, a special pipeline crawler part 2, an ultrasonic chip array probe part 3, an upper computer intelligent graphics processing part 4, and a cable part 5 , special equipment vehicle 6, wherein,

[0042] The ultrasonic chip array probe part 3 is installed on the special pipeline crawler part 2,

[0043] The main control part 1 and the upper computer intelligent graphics processing part 4 are placed in the special equipment car 6,

[0044] The main control part 1 and the upper computer intelligent graphics processing part 4 in the special equipment vehicle 6 are connected with the special pipe crawler part 2 through the cable part 5 .

[0045] The main control part 1 is actually a phased array detector (the specific structure and principle of the detector are disclosed...

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Abstract

The present invention discloses a phased-array ultrasonic wave automatic detection system for detecting large-bore pipe circumferential weld. Said system mainly includes main control portion, specialpipeline creeper portion, ultrasonic wafer array probe portion, upperseat machine intelligent graphic processing portion, cable portion and special assembly car portion. The diameter range of pipe which can be detected by said system is large, from 4 inches to 56 inches.

Description

Background technique [0001] In the inspection of pipeline welding quality, traditional inspection mainly uses visual inspection, radiographic inspection, manual ultrasonic inspection, etc. Among them, visual inspection is the earliest method used, and it is generally used for the weld quality of small-diameter pipes. For the circular butt welds of large-diameter pipes (generally referring to pipe diameters of more than 1 meter), it will be very difficult to use radiographic inspection. The inspection personnel operate the X-ray inspection machine to emit X-rays, take pictures of the quality of the welds, and then develop, fix, rinse, and dry in the dark room to obtain weld photos, and then judge the quality of the welds by special personnel. When this method is protected by a lead room in the laboratory, the health and safety of the staff needs to be paid attention to. However, in the case of pipeline construction in the field, without good protection measures, it will pose a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04
Inventor 薛振奎黄建民张学增苏恒兴吴楠松陈家祥覃明贵白世武王文海蓝玲根
Owner 中国石油天然气管道科学研究院有限公司
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