A method for installing a single blade of an offshore wind power generator

Abstract

The invention discloses a method for installing a single blade of an offshore wind power generator, which includes the following steps: blade preparation: preliminary inspection of the blade, removal of the delivery bracket of the blade, and removal of the front-end connecting part of the blade root transportation bracket; clamping of the blade: inspection of the blade Position and surface cleanliness, control the spreader to clamp the blade through the wind system, and move the blade out of the blade conveying bracket to maintain the position and balance of the blade in the air; blade hoisting: lift the blade and move the blade to the pitch bearing directly in front of the blade and the pitch bearing: move the blade close to the pitch bearing to complete the alignment connection between the blade and the pitch bearing; after the blade is in place, fix the blade root by installing nuts, washers and studs; this application The aim is to provide a single-blade installation method for offshore wind turbines, which has low cost, good versatility, convenient and reliable hoisting operation, and reduces the demand for artificial materials, which provides great convenience for the later maintenance of wind turbines.

Description

technical field [0001] The invention relates to the technical field of generator blade installation, in particular to an installation method of a single blade of an offshore wind turbine. Background technique [0002] Offshore wind turbines generally include towers, blades, hubs and nacelles, and their installation is affected by offshore wind, waves, and currents, and is more difficult to install than onshore wind turbines. At present, the installation method of offshore wind turbines in the world is mainly the offshore whole machine installation method, that is, the wind turbines are installed and assembled at the assembly base, and then transported to the proposed offshore wind farm through a wind power installation platform or a crane ship, and the whole machine is installed. on the fan tower. This installation method has extremely high requirements on the hoisting weight of the crane, and the overall hoisting cost is also very high, and the applicable hoisting conditio...

AI Technical Summary

Problems solved by technology

[0003] With the gradual increase of the single unit capacity of wind turbines in the offshore wind power industry, the diameter of the impellers is also increasing. At present, the diameter of the impellers of wind turbines is about 130 meters, and there is an increasing trend, which requires a larger crane. , the requirements for the hoisting site are getting higher and higher, the deck area of ​​the wind power installation platform or the crane ship is also getting larger and larger, and the hoisting cost is huge

Several blade installation devices and methods that have appeared on the market at present have not been widely used due to their complex structure, high cost, poor versatility, and low reliability of the clamping mechanism

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