Electromagnetic ultrasonic equipment for pipeline crack internal detection

CN120870355APending Publication Date: 2025-10-31CHINA UNIV OF PETROLEUM (BEIJING)
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Patent Information

Application Number
CN202511113736.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-08
Publication Date
2025-10-31

AI Technical Summary

Technical Problem

Existing electromagnetic ultrasonic testing technology is difficult to move stably in the narrow space inside pipes and cannot adapt to the undulations of the pipe wall, resulting in inaccurate and unreliable testing.

Method used

An electromagnetic ultrasonic device for detecting cracks inside pipes has been designed, including a cylindrical chamber, a probe assembly surrounding the outer periphery of the chamber, and a support wheel assembly. The probe assembly includes a radially retractable electromagnetic ultrasonic probe and a main control unit, and the support wheel assembly includes a radially retractable support wheel. Combined with a buffer wheel and a drive motor, the probe can move stably and fit within the pipe.

Benefits of technology

It achieves stable movement and high throughput of the electromagnetic ultrasonic probe in the narrow space inside the pipe, and can adapt to the undulations of the pipe wall, ensuring the accuracy, reliability and safety of the detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses electromagnetic ultrasonic equipment for pipeline crack internal detection. The electromagnetic ultrasonic equipment comprises a columnar bin body and a plurality of groups of probe assemblies arranged around the periphery of the columnar bin body, the supporting wheel assemblies are arranged at the two ends of the columnar bin body respectively; the supporting wheel assembly comprises a supporting wheel capable of stretching out and drawing back in the radial direction of the columnar bin body. The probe assembly comprises an electromagnetic ultrasonic probe capable of stretching out and drawing back in the radial direction of the columnar bin body. A main control unit which is in communication connection with the electromagnetic ultrasonic probe is arranged in the columnar bin body and is used for controlling the electromagnetic ultrasonic probe to carry out electromagnetic ultrasonic detection. The electromagnetic ultrasonic equipment can stably move in a narrow space in the pipeline and well adapt to fluctuating changes of the surface of the inner wall of the pipeline, the high passing ability of the electromagnetic ultrasonic equipment in the pipeline is guaranteed, it is also guaranteed that the electromagnetic ultrasonic probe is attached to the inner wall face of the pipeline, and the service life of the electromagnetic ultrasonic equipment is prolonged. And therefore, the accuracy and reliability of all-position crack detection on the pipeline are ensured.
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Citation Information

Cited By

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  • A pipeline internal detection system, method, storage medium and electronic device

    CN122345659B