Offshore wind turbine pile leg nondestructive detection system and method

Abstract

The invention discloses an offshore wind turbine pile leg nondestructive detection system and method. The system comprises a detection device and an upper computer, the detection device is provided with an ultrasonic detection module, an eddy current detection module and an ultrasonic time-of-flight diffraction detection module, the bottom of the detection device is provided with a traveling mechanism used for traveling on a wind turbine pile leg, a pushing mechanism is arranged on the face, away from the wind turbine pile leg, of the detection device, and the upper computer is arranged on an offshore platform and communicates with the detection device in a wired or wireless mode. According to the offshore wind turbine pile leg nondestructive detection system and method, an offshore wind turbine single pile can be comprehensively inspected and maintained, the operation efficiency is improved, and the overall maintenance cost is reduced.

Description

technical field [0001] The invention relates to the field of detection technology, in particular to a system and method for non-destructive detection of pile legs of offshore wind turbines. Background technique [0002] The current common types of foundations for offshore wind turbines include: single pile foundations, gravity foundations, pile cap foundations (intertidal wind turbines), high pile cap foundations, tripod or multi-pod foundations, jacket foundations, etc. Among them, the single-pile structure is a relatively simple and commonly used support structure. The tower is directly supported by the foundation legs or connected through the transition section. The tower, pile legs and transition sections are all cylindrical steel pipe fittings. The legs are inserted all the way below the seabed, and the insertion distance can be determined according to the actual environmental load and the geological conditions of the seabed. In addition to the simple structure, the ad...

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Problems solved by technology

Manual inspection of the interior of the old monopile foundation is no longer possible due to partial fill

And due to potential problems with visibility and sea growth, inspections using divers or remotely operated submarines are challenging, inefficient and difficult to guarantee

The currently existing wall-climbing cleaning and detection devices have limited use environments and are suitable for a single underwater or above-water environment. For example, the Chinese patent with the publication number CN 108380601A and the publication date of 2018.8.10: a surface of an underwater steel pipe pile Cleaning robots, which only have a single cleaning method, cannot perform effective non-destructive testing and defect detection on offshore wind turbine single piles

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