Hydraulic oblique push type offshore wind turbine installation system

Abstract

The invention relates to a hydraulic oblique push type offshore wind turbine installation system. The installation system comprises a wind turbine installation ship, a rotating device, a hydraulic system and wind turbine arrangement lifting devices, tail supporting columns are vertically arranged at the tail part of a deck, and tail rails are arranged on the tail supporting columns; the rotating device comprises gear lifting devices, rotating arms and mechanical arms, the gear lifting devices slide up and down along the tail rails, and one ends of the rotary arms are hinged to the gear liftingdevices; the hydraulic system comprises hydraulic power devices, hydraulic bases and hydraulic rods hinged to the hydraulic bases, the top ends of the hydraulic rods are hinged to the rotating arms,and the hydraulic power devices drive the hydraulic rods to stretch and push the rotating arms to rotate; and whole wind turbines are horizontally arranged on the wind turbine arrangement lifting devices, and the mechanical arms hold and lift tower drums of the wind turbines. According to the hydraulic oblique push type offshore wind turbine installation system, after the mechanical arms hold thetower drums of the wind turbines, the hydraulic system pushes upwards the rotating arms to rotate around a tail cross beam, meanwhile, the tail cross beam can move up and down along the tail rails, and the two ends of each rotary arm can work cooperatively, so that installation time of one offshore wind turbine can be effectively shortened.

Description

technical field [0001] The invention relates to the technical field of installation of offshore wind turbines, in particular to a hydraulic inclined-push offshore wind turbine installation system. Background technique [0002] As the development and construction of global offshore wind power continues to heat up, the demand for offshore wind turbine installation ships in the Asia-Pacific region is also increasing day by day. [0003] At present, there are two main installation methods for offshore wind turbines: separate hoisting and integral hoisting. In the split hoisting scheme, the offshore foundation is installed first, then the wind turbine tower is hoisted, and finally the nacelle and blades are installed. Split hoisting works at sea for a long time, and the installation is extremely sensitive to weather conditions, but the requirements for the hoisting capacity of the wind power installation ship are not high. The overall hoisting method is to assemble the tower, e...

AI Technical Summary

Problems solved by technology

The overall hoisting method is to assemble the tower, engine room and blades on land, transport them to the installation site by ship, and use "integrated" overall hoisting to install them on the foundation, which can reduce high-altitude operations at sea, so the time for offshore installation is shorter. It is long, but it puts forward high requirements on the lifting capacity of the offshore installation ship and the unit transportation capacity. The number of wind turbines that can be installed at one time is 1-2, which is not many, and the vertical installation and transportation of the wind turbines leads to a high center of gravity of the ship.

[0004] It can be seen from the above that the traditional segmental hoisting and overall hoisting installation methods have low efficiency, long working hours, and are extremely sensitive to weather conditions, which increases the uncertainty of the construction period

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