Offshore wind turbine pre-assembly process
An offshore wind turbine, pre-assembled technology, applied in ships and other directions, can solve the problems of affecting the service life of the wind turbine, the installation accuracy of the blade is not small, the disturbance connection damage, etc., and achieve the effect of improving operation efficiency, reducing construction cost and improving efficiency
Pending Publication Date: 2022-03-25
山东宏洲海洋工程有限公司 +1
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Problems solved by technology
During the utilization of offshore wind energy, it is necessary to install huge wind turbines on pile foundations. The conventional construction method is that the construction ship first lifts the wind turbine cabin and installs it on the pile foundation, and then the construction ship installs the blades on the cabin one by one. However, due to the existence of wind and waves at sea, there is inevitably a displacement deviation between the construction ship and the engine room fixed on the pile foundation due to shaking. Therefore, not only the installation accuracy of the blades is not small, so the excessive disturbance may cause the installation The connection between the blade and the nacelle will be damaged during the process, which will affect the service life of the fan
[0003] For this reason, some companies have adopted "a method for assembling offshore wind turbines at the wharf" as disclosed in the Chinese patent CN201910654711.3. They assemble the wind turbines in the static environment of the wharf, and then transport them as a whole to the target sea area for installation, but In this way, a large-tonnage construction ship is required to haul the assembled wind turbine, which affects its loading efficiency. It requires multiple trips by the construction ship to realize the overall installation of the wind farm, so the overall efficiency is not high
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[0037] see Figure 1~8 , a kind of offshore wind turbine pre-assembly process that the present invention relates to, its steps are:
[0038] Step 1, in place, the operation platform 101 has self-propelled capability, and the fan installation column 102 and the crane 103 are installed on the floating deck of the operation platform 101 (the crane 103 includes a slewing crane and a pole crane, which can replace the construction ship Complete all hoisting tasks), the lower part of the floating deck of the working platform 101 is equipped with a power system (the power system adopts DP dynamic positioning system, so that it not only has self-propelled capability, but also cooperates with GPS, Beidou, etc. system, combined with various sensor signals such as wind speed and sea waves, can achieve dynamic balance in the target sea area, and ensure the construction accuracy and construction effect when the complete wind turbine is installed on the pile foundation), the floating deck of...
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The invention relates to an offshore wind turbine pre-assembly process which comprises the following steps: step 1, placing in place: loading a wind turbine cabin and a wind turbine blade on a working platform to a target sea area; 2, a cabin is installed, a draught fan installation stand column and a crane are installed on a floating deck of the operation platform, and the draught fan cabin is fixedly installed on the draught fan installation stand column through the crane on the operation platform; and 3, blade installation is conducted, specifically, the fan blade is lifted by the crane to be installed on the fan cabin. According to the pre-assembly process for the offshore wind turbine, the construction efficiency of the wind turbine can be effectively improved on the premise that the assembly precision is guaranteed.
Description
technical field [0001] The invention relates to an assembly process of a wind turbine, in particular to a pre-assembly process of an offshore wind turbine, and belongs to the technical field of offshore wind power. Background technique [0002] At present, with the tightening of carbon emission policies year by year, renewable energy, especially wind energy, has been vigorously promoted. In the utilization of wind energy, offshore wind energy reserves are huge and have great development prospects, so it has been widely sought after by countries all over the world. During the utilization of offshore wind energy, it is necessary to install huge wind turbines on pile foundations. The conventional construction method is that the construction ship first lifts the wind turbine cabin and installs it on the pile foundation, and then the construction ship installs the blades on the cabin one by one. However, due to the existence of wind and waves at sea, there is inevitably a displa...
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Login to View More IPC IPC(8): B63B75/00
CPCB63B75/00Y02E10/72
Inventor 周宏勤
Owner 山东宏洲海洋工程有限公司