Flaw detecting device for pipeline inner wall detection

Abstract

The invention discloses a pipeline inner wall inspection and flaw detection device which uses an external rotating motor as the driving force in the pipeline, and adjusts the positional relationship of the two sliding plates through the thread fit relationship, so that it can adapt to the variable diameter pipeline and can quickly locate the pipeline. The flaw detection device at the wall crack position has lower cost and is more durable, can save working time and improve work efficiency, and is characterized in that the support arm is an arc-shaped plate structure, and a slot is opened at the front end of the middle part of the support arm, and the There is a detection shield on the outside of the placement groove, the middle part of the inner side of the center bearing supports the arm, and communicates with the placement groove, the two ends of the support arm are respectively parallel to the center line of the center bearing, and the The two ends of the support arm are provided with magnet strips respectively, and two fixed frames are arranged symmetrically on the outer edge of the support arm, and each of the fixed frames is provided with a connecting bearing, and the support wheel is placed on the connected to the bearing.

Description

technical field [0001] The invention relates to a flaw detection device for the inner wall of a pipeline, which relates to a mobile device for flaw detection that can penetrate deep into the pipeline, and belongs to the field of pipeline detection. In particular, it relates to a flaw detection device that uses an external rotating motor as the driving force in the pipe, adjusts the positional relationship of two sliding plates through the thread fit relationship, makes it suitable for variable-diameter pipes, and can quickly locate cracks on the pipe wall. Background technique [0002] At present, pipelines such as petroleum pipelines, water conservancy pipelines, communication pipes, and sewage pipelines are corrosive to a certain extent in the working environment where these pipelines are located. They are used for a long time and are mostly buried in pipeline wells or underground. For this kind of pipeline, if there is a failure, it is generally difficult to detect it dee...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned inventions, as the detection robot, mainly rely on the power provided by its own motor, whether it is a battery or laying movable wires, it will increase the weight of the detection robot, and this type of detection robot is expensive, and the movement in the pipeline , external staff, it is difficult to directly control, the detection effect is poor, and it is difficult to locate the detected wound in time, the detection effect is poor, the detection effect is poor for short-length pipelines, and the inner wall flaw detection of the joint of the variable diameter pipeline, Existing detection robots think more about how to pass through, and the detection effect is not good

However, some sensors that detect the inner wall of the pipe are difficult to penetrate into the pipe effectively without contacting the pipe wall.

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