Driving device for internal detection of magnetic flux leakage in industrial pipelines and its application method

Abstract

The invention discloses a driving device for internal inspection of magnetic flux leakage of an industrial pipeline and a using method of the driving device. The device comprises a driving power unit, a guiding and centering unit and a pipeline abutting and clamping unit, wherein the driving power unit is connected with one end of the guiding and centering unit and is used for generating a high-pressure flowing medium; the guiding and centering unit comprises an instrument cover and is used for guiding and centering an internal inspection device, and the internal inspection device enters the industrial pipeline through the instrument cover under the action of the high-pressure flowing medium; and the pipeline abutting and clamping unit is connected with the other end of the guiding and centering unit and is used for realizing seamless abutment of the guiding and centering unit and the pipeline. The method comprises the steps of arranging one driving device at the inlet end of an inspected pipeline to realize transmitting and driving functions of the internal inspection device and arranging the other driving device at the outlet end of the inspected pipeline to realize a receiving function of the internal inspection device. The driving device is simple, convenient and flexible in operation, the damage rate of the internal inspection device can be effectively reduced, and the transmitting, driving and receiving integrated function of the internal inspection device for the pipeline is realized.

Description

technical field [0001] The invention belongs to the technical field of electromagnetic nondestructive testing, and more specifically relates to a driving device for internal detection of magnetic flux leakage in industrial pipelines and a method for using the same. Background technique [0002] It is of great significance to ensure the safety of production to ensure the safe operation of industrial pipelines widely used in petroleum, chemical, metallurgy, pharmaceutical, electric power, gas and other fields. Taking the heating furnace as an example, the heating furnace is one of the most commonly used equipment in the petrochemical industry. The heating furnace tube is an important component of the heating furnace, and its safety status is directly related to the normal operation of the production device. In recent years, with the shortage of petroleum resources, the refining of high-sulfur oil, the corrosion of equipment has become increasingly serious. With the commissioni...

AI Technical Summary

Problems solved by technology

Among them, the manual method is that multiple people work together to put the internal detector into and out of the pipeline, which has a low safety factor and high labor costs; the ejector push method uses an external force to push the inner detection device into or out of the pipeline with a ejector, which is easy Damage to the internal detection device

For example, CN101713492A discloses a mobile device and a sending and receiving method of an in-line detection device. The mobile device uses a push rod and a tray to send and receive the internal detection device. However, the mobile device does not have the ability to drive the internal detection device for motion scanning. function, it also needs to be driven by other power devices

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