Method of setting up, maintaining and disassembling a wind turbine

摘要

A method of erecting, and a method of servicing or dismantling, a wind energy plant with a hub height of at least 140 meters makes provision that a heavy-duty lifting device is temporarily disposed on a tower top for any installing, exchanging, or disassembling purposes, and subsequently is dismantled immediately, with all these operations being carried out without using an external crane. A light-duty lifting device attached to the tower serves for erecting the tower, so that no external large-scale cranes are required. For disassembling or exchanging the large components, an auxiliary lifting device is able to transport the heavy-duty lifting device to the top of the tower and is also capable of lowering the heavy-duty lifting device from there.

主权项

1. A method of erecting a wind energy plant comprising a tower and large components attached to a tower top, the large components comprising a nacelle, a generator, and a rotor comprising at least one rotor blade, comprising the following steps:
using a light-duty lifting device which is not capable of transporting the generator to the tower top and which is designed for lightweight loads to erect the tower and attaching the light-duty lifting device to the tower during construction in order to gain height together with the tower during construction of the tower, lifting a heavy-duty lifting device to the tower top with the light-duty lifting device, transporting the heavy-duty lifting device to the tower top while being supported by the tower, temporarily coupling the heavy-duty lifting device suitable for the installation of the large components to the tower to form a heavy-duty crane by using the tower as a crane mast, lifting at least one of the large components with the heavy-duty lifting device to the tower top for installation, decoupling the heavy-duty lifting device from the tower after installation of the large components, and dismantling the heavy-duty lifting device from the tower after installation of the large components while being supported by the tower.