High-stability ultrasonic phased array pipeline ring welding seam detection apparatus

Abstract

The invention discloses a high-stability ultrasonic phased array pipeline ring welding seam detection apparatus, which comprises a main body, a magnetic wheel pressing mechanism, a fastening device, a left and right flaw detection probe bracket and a left and right flaw detection probe, wherein the main body comprises a base, a first sliding rod, a second sliding rod, sliding rod ejection wires, a left and right sliding rod linking frame, magnetic wheels and wheel shafts, the fastening device is used for fastening the main body on a pipeline to be measured, the magnetic wheel pressing mechanism is arranged between the first sliding rod and the second sliding rod, and the flaw detection probe bracket is connected to the flaw detection probe and assists the flaw detection probe to perform detection work on the welding seam of the pipeline to be measured. According to the present invention, the apparatus can stably rotate around the flaw detection pipeline during the pipeline ring welding seam detection work so as to prevent the influence of vibration and other accidents on the detection effect, such that the apparatus has advantages of wide application range, high flaw detection sensitivity, high detection efficiency, and the like.

Description

technical field [0001] The invention relates to the technical field of pipeline flaw detection, in particular to a high-stability ultrasonic phased array pipeline girth weld detection device. Background technique [0002] At present, in the installation and construction of refining and chemical equipment, the amount of non-destructive testing of butt girth welds of large thick-walled and large-diameter pressure pipes is increasing; using A-type pulse ultrasonic testing, the defect display is not intuitive, and the defect shape cannot be displayed. And defect measurement is greatly affected by human factors, and the repeatability of defect detection and evaluation is poor; X-ray detection is more and more difficult or even impossible to detect (insufficient penetration); gamma-ray detection is difficult for safety protection (some places are not allowed to use), detection The time is long, the detection time is limited, and the half-life is short. Therefore, not only the cost...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a high-stability ultrasonic phased array pipeline girth weld detection device, which can rotate around the flaw detection pipeline smoothly during the pipeline girth weld detection work, and at the same time solves the problem of rapidly reducing the diameter of the pipeline. During flaw detection, the detection equipment cannot be effectively fixed; the device has the advantages of wide application range, good stability, and high flaw detection sensitivity.

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