A visual detection device for cracks on the surface of underwater structures

Abstract

The invention discloses a visual detecting device for a surface crack of an underwater structure, which can be used for flexibly detecting the surface crack in real time under the condition that the operation of the structure is not interfered. Through the adoption of ultrasonic nondestructive cleaning and high pressure water jet flow, water scales, oil stains, mosses and sucker creatures attached to the surface of the underwater structure are removed so as to determine a detecting part; an image of a cleaned part is collected through the adoption of a underwater camera; and through an underwater acoustic communication method, the image is transmitted to an upper computer end for a detector to observe the detecting part. The visual detecting device for the surface crack of the underwater structure, disclosed by the invention, has the advantages as follows: through a sliding guide rail, a cleaning detecting position can be adjusted or multi-machine networking can be carried out; underwater key parts of engineering buildings such as dams and drilling platforms are monitored for a long time; and damages caused by enlargements of new cracks are avoided.

Description

technical field [0001] The invention relates to a crack detection device, in particular to a visual detection device for cracks on the surface of underwater structures. Background technique [0002] The underwater structures of dams and drilling platforms have been operated for a long time, and affected by water quality, water pressure and various biochemical factors, cracks and damages will inevitably appear in the dam body and gates. Since the structure is under water for a long time, it is inconvenient to detect and clean, resulting in the deposition of scale and the growth of various algae and shellfish, which often hide these problems that have already occurred. If the tiny cracks and damages that appeared in the early stage cannot be repaired in time, the degree of defects will be further expanded, which may cause the dam gate to fail to open in time, the dam body to fail to work normally, and even catastrophic accidents such as large-scale collapse. In order to preve...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that a large amount of manpower, material resources, and time are consumed in the existing maintenance and inspection methods of underwater structures, and the structures cannot work normally in the whole process, the present invention provides a combination of ultrasonic cleaning and underwater acoustic communication technology, which can be operated remotely, A visual crack detection device on the surface of underwater structures that is highly automated, can be networked, and does not interfere with the normal work of structures.

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