Transition-section-free single-pile foundation construction and fan equipment installation process for shallow sea area wind farm

Abstract

The invention discloses a transition-section-free single-pile foundation construction and fan equipment installation process for a shallow sea area wind farm. The process comprises a transportation method. The transportation method comprises the following steps of: arranging single pipe piles on a transportation ship, arranging tracks and pulley devices below the single pipe piles, hanging a rigging after arriving at a construction sea area, and directly erecting piles; dividing a tower into two or three sections, placing each section of tower onto a tower bracket for transporting vertically, erecting, and arranging all small parts including electrical appliance cabinets and the like in the tower to lower field workload; constructing rabbit assemblies by using a cabin, hubs and two blades for transportation to lower field workload and lower the influence of wind speed; and designing a special tool for remaining blades, wherein overlaid transportation can be performed to fully utilize the space of the transportation ship. The transition-section-free single-pile foundation construction and fan equipment installation process for the shallow sea area wind farm disclosed by the invention has the advantages of mature technology, low tool cost, easiness in operating, vertical degree adjusting function, reduction in hoisting times, great increase in the construction efficiency, great saving of ship renting and amortizing cost, and reduction in the construction cost.

Description

technical field [0001] The invention relates to the foundation construction and equipment installation engineering of the offshore wind power industry, in particular to the non-transition section single pile foundation construction and equipment installation technology of offshore wind farms (within a water depth of 30 meters). Background technique [0002] The influence of energy on China's economy and the world economy has been deepening day by day, so the development and utilization of renewable energy has become an important issue. [0003] Wind energy is an important renewable resource, inexhaustible and inexhaustible. Wind power generation is a mature renewable energy power generation technology. Accelerating the development and utilization of wind energy is an important measure to promote the development of renewable energy. [0004] my country is rich in offshore wind energy resources. According to preliminary measurements, there are 750 million kilowatts of reserv...

AI Technical Summary

Problems solved by technology

[0015] There are individual successful cases in domestic wind farms in shallow sea areas. This process has the following disadvantages: 1) The foundation adopts a high-pile sinking platform structure, and the construction efficiency is low for about 15 days per unit; 2) The wind turbine installation adopts integral hoisting, which requires design and production Special buffer tooling and overall hoisting tooling, renting a special ship (semi-submerged barge) for overall transportation, resulting in high construction costs, and the transportation of the whole machine has high requirements for wind and waves, which is not suitable for long-distance transportation. The final electricity price is about 0.91 yuan / kWh

It can be seen that this set of construction technology has high cost, low efficiency, and time-consuming, and cannot be popularized and applied on a large scale.

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