An automatic ultrasonic testing device for pressure vessels

By combining support and detection components, the problem of pressure vessel detection devices being unable to effectively detect in edge areas and in front of obstacles is solved, enabling automatic scanning and coupling agent spraying, thus improving detection accuracy and efficiency.

CN122361601APending Publication Date: 2026-07-10CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Filing Date
2026-04-15
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing pressure vessel inspection devices are prone to creating blind spots near the outer edge of the vessel, making it difficult to adjust the angle flexibly, effectively overcome obstacles, and lack convenient coupling agent spraying devices, which affects the accuracy and efficiency of the inspection.

Method used

The design incorporates a combination of support and detection components, including an adjustable bracket, magnetic wheels, and sensors, enabling automatic scanning and steering. It is also equipped with a coupling agent spraying device to ensure good coupling between the ultrasonic probe and the pressure vessel surface.

Benefits of technology

It achieves full coverage inspection of pressure vessels, improves inspection accuracy and efficiency, and ensures stable operation and inspection results in complex environments.

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Abstract

This invention provides an automatic ultrasonic testing device for pressure vessels, belonging to the field of flaw detection technology. The device consists of a support assembly and a detection assembly. The support assembly includes a bracket, a magnetic wheel, and a tension spring; the detection assembly includes a sensor, a sliding component, and an ultrasonic probe. The bracket has an adjustable tilt angle to adapt to the testing needs of pressure vessels of different diameters. The magnetic wheel is driven by a hub motor and, in conjunction with the tension spring, enables independent obstacle crossing and omnidirectional movement. The device has a built-in main control unit that controls the support assembly through sensor feedback, achieving automatic "Z"-shaped scanning; it drives the sliding component to rotate automatically on the XYZ axes, precisely adjusting the detection angle and position of the ultrasonic probe, enabling online ultrasonic testing or offline analysis. This invention can be widely used in pressure vessel testing operations in industries such as petrochemicals and power energy, and is especially suitable for large storage tanks. It has strong environmental adaptability and testing reliability, greatly improving the efficiency and quality of pressure vessel flaw detection.
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