Fan holding and lifting device and mobile overwater operation platform

Abstract

The invention relates to the field of offshore fan mounting technology and discloses a fan holding and lifting device. The fan holding and lifting device is used in a mobile overwater operation platform and comprises a gate-type mounting frame, a fan lifting device and a holder for clamping a fan tower barrel, wherein the gate-type mounting frame is provided with a first support leg, a second support leg and at least one cross beam; the cross beam is fixed between the first leg and the second leg; the holder is arranged on the cross beam; the fan lifting device is fixed on the gate-type mounting frame; and a lifting end of the fan lifting device is connected with the fan tower barrel. The fan holding and lifting device of the structure can be used in the mobile overwater operation platform, the holder and the fan lifting device can completely restrain the fan, and the entire assembled fan can be fixed according to the fan mounting state. The invention also discloses a mobile overwater operation platform.

Description

technical field [0001] The invention relates to the technical field of installation of offshore wind turbines, in particular to a wind turbine holding and lifting device for a mobile water working platform. The invention also relates to a mobile water work platform. Background technique [0002] Offshore wind power generation technology is to build a wind farm on a suitable sea area, install one or more 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 wind turbine generally includes a wind turbine tower, a wind wheel and a nacelle, where a generator, a gearbox, and a main shaft are installed. The bottom of the wind turbine tower is installed on the fan foundation of the wind farm, and the wind wheel and the nacelle are installed on the top of the wind tower. The wind wheel can rotate under the action of the wind to drive the generator in the nacelle to generate electricity, realizin...

AI Technical Summary

Problems solved by technology

[0007] When the fan is installed in this way, the crane ship is in a floating state, and the stability of the ship is poor. When the fan is hoisted from the top of the fan by the high and long boom of the crane ship, the shaking of the hull will amplify the shaking effect on the fan , the fan is always in a shaking state, making it difficult to align the installation part of the bottom of the fan tower with the installation part of the fan foundation of the wind farm, making the installation of the fan very difficult

Therefore, in the process of hoisting the wind turbine as a whole, the stability of the crane ship is highly required, which leads to the installation of the wind turbine only in calm weather, and the working time is greatly affected by the weather

[0008] Moreover, large-scale crane ships are not dedicated to wind turbine installation, and the cost of using or renting crane ships is very high, which in turn leads to higher wind turbine installation costs

In addition, large cranes also have the characteristics of deep draft, so large cranes cannot be used for hoisting operations in tidal flats or shallow sea areas, so that the application of this method is limited by the installation area

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