Adjustable phased array pipeline girth weld detection device

Abstract

The invention provides an adjustable phased array pipeline girth weld detection device which comprises a body, a magnetic pressing wheel mechanism, an auxiliary bracket, a tightening device, a left flaw detection probe bracket, a right flaw detection probe bracket, a left flaw detection probe and a right flaw detection probe; the body comprises a foundation support, a first sliding rod, a second sliding rod, a sliding rod jackscrew, a left sliding rod linkage frame, a right sliding rod linkage frame, magnetic wheels and wheel shafts; the tightening device is used for tightening the body onto a pipeline to be detected, the magnetic pressing wheel mechanism is arranged between the first sliding rod and the second sliding rod, the auxiliary bracket is connected with the first sliding rod and the second sliding rod of the body, and the flaw detection probe brackets are connected with the flaw detection probes and assist the flaw detection probes in conducting detection on the girth weld of the pipeline to be detected. When the device is used for detecting the pipeline girth weld, the device can rotate steadily around the flaw detection pipeline, therefore the situation that the detection result is affected by vibration and other accidents is prevented, and the device can have the advantages of being wide in applicable range, high in flaw detection sensitivity, high in detection efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of pipeline flaw detection, in particular to an adjustable 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 is high, the ...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an adjustable 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 pipeline flaw detection. , the detection equipment cannot be effectively fixed and other problems; the equipment has the advantages of wide application range, good stability, and high flaw detection sensitivity.

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