Sheet-mounted tower, manufacturing and mounting method and wind turbine generator

Abstract

The invention provides a sheet-mounted tower, a manufacturing and mounting method and a wind turbine generator. The sheet-mounted tower comprises at least one sheet-mounted shell ring, the sheet-mounted shell ring comprises a plurality of sheet bodies and positioning connecting structures, and the plurality of sheet bodies are connected through the positioning connecting structures; and a plurality of sheet-mounted shell rings are arranged, and the sheet-mounted shell rings are connected through flanges. The tower of which the diameter exceeds the transportation size requirement is longitudinally cut to form three or more parts, so that the transportation size requirement is met, the problem that the connection structure of tower sheet bodies is unreasonable in arrangement is solved, and the problems of inaccurate positioning and difficult connection during sheet body assembly, inclination and non-uniform stress of a tower drum caused by sheet body dislocation, damage to electrical equipment caused by gap water leakage, tedious installation caused by diversity of accessories and the like are solved.

Description

technical field [0001] The present disclosure relates to an application field of wind power generation equipment, in particular to a sheet-mounted tower, a manufacturing and installation method, and a wind turbine, specifically a sheet-mounted tower, an accessory module, a manufacturing and installation method, and a wind turbine. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] The tower is an important component system of the wind turbine, used to support the upper nacelle system and the wind wheel system. With the rapid development of land-based high-power units, wind resources are continuously developed and utilized. In the case of relatively stable wind speeds and relatively high annual average wind speeds within the safety level of wind turbines, there are fewer and fewer wind areas, and areas with large wind shear changes are not ...

AI Technical Summary

Problems solved by technology

However, the height limit conditions of infrastructure such as roads and bridges (the standard height limit for primary and secondary roads is 5m), the relative concentration of infrastructure in geographical locations where decentralized projects are located, and the restrictions on transportation conditions in mountainous and hilly areas have led to large-diameter towers. The transportation conditions have become extremely harsh and even cannot be transported to the project site. Measures such as bridge demolition and road repair have caused huge costs and affected the project schedule requirements, and the bulky feature of the integral ring forged flange has limited the development of steel tubular towers , is also an important factor hindering the development of large-scale wind turbines

[0005] However, in the prior art, the structural setting for the connection of the tower pieces is unreasonable, resulting in inaccurate positioning during the assembly of the pieces, difficulty in connection, dislocation of the pieces, resulting in tilting of the tower, uneven force, and water leakage in the gaps. Damage to electrical equipment and cumbersome installation due to the diversity of accessories will affect the ability of the tower to bear loads and further affect the safety of wind turbines

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