Integral hoisting equipment for offshore wind turbine

Abstract

The invention discloses integral hoisting equipment for an offshore wind turbine. The integral hoisting equipment is used for integrally hoisting a wind turbine (4) on a transport ship (3) onto a wind turbine foundation through a crane (2) on an installation ship (1); fixing frames (31) are arranged on the transport ship (3); the wind turbine (4) is arranged between two adjacent fixing frames (31); the integral hoisting equipment for the offshore wind turbine comprises balance beams (5) supported on the two fixing frames (31), and a wind turbine lifting device (6) which is connected with the balance beams (5) through a rope (52); and a lockable follow-up device which can rotate and lock and can extend and retract along an axial direction is detachably hinged between a chassis (21) of the crane and the wind turbine lifting device (6). According to the hoisting equipment, an auxiliary platform is not needed to be arranged, the wind turbine can be transformed from flexible hoisting to rigid hoisting, stable butt joint between the wind turbine and the wind turbine foundation is realized, and bolt holes are stably centered and connected. Therefore, the hoisting process can be simplified, and the hoisting cost is reduced.

Description

technical field [0001] The invention relates to the technical field of offshore fan hoisting, in particular to an overall hoisting device for an offshore fan. Background technique [0002] Offshore wind power generation technology is to build a wind farm in a suitable sea area, install wind turbines (hereinafter referred to as wind turbines) on the basis of the wind turbines in the wind farm, and convert wind energy into electrical energy through the wind turbines. A fan generally includes a fan tower, a nacelle and an impeller. A generator and a gearbox are installed in the nacelle. The main shaft of the gearbox protrudes from the outside of the nacelle, and the impeller is installed on the main shaft. The bottom end of the fan tower is provided with a flange for connecting with the fan foundation, the nacelle is installed on the top of the fan tower, and the impeller is installed on the protruding gearbox main shaft. The impeller rotates under the action of the wind to dri...

AI Technical Summary

Problems solved by technology

However, this solution has the following disadvantages: the offshore operation time is longer and the installation process is more complicated; during the wind turbine installation process, the mobile water work platform needs to be in a good and stable state for a long time, so the work platform is required to have very high stability. However, the sea conditions are complex, the technology is difficult, and the cost of implementation is high

In the above process, since the auxiliary platform needs to be set up first, the hoisting process becomes complicated and consumes too much manpower, which greatly increases the hoisting cost

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