Wind Turbine Tower Assembly with Raised Nacelle Section Insertion
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Solution Overview
Problem
The increasing size of wind turbines complicates transport and assembly operations, necessitating improved methods for efficient and safe construction.
Innovation Solution
A wind turbine tower assembly device comprising a tower interface, nacelle interface, lifting structure, and tower assembly structure, which facilitates the attachment of a nacelle above the tower, creates space for inserting tower units, and includes a crawling structure for efficient assembly, encapsulation for controlled climate, and support structures for adaptability during construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a wind turbine tower is constructed in sections and assembled on-site, then transportation and installation become feasible, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The tower is divided into multiple transportable sections (first tower section, second tower section, third tower section) that can be manufactured separately and transported to the installation site, enabling construction of tall towers without requiring complete on-site fabrication facilities
Solution Approach 2:
The first tower section is pre-assembled with the first nacelle assembly and rotor assembly before transporting the remaining tower sections, allowing preliminary installation work to be completed and providing a stable base for subsequent assembly operations
2Manufacturing precision
If tower sections are assembled sequentially with heavy lifting equipment, then proper positioning is achieved, but installation time and equipment requirements increase
Solution Approach 1:
The method utilizes gravity and self-alignment principles during the assembly process, where tower sections are positioned and secured in a controlled sequence that leverages gravitational forces and structural interlocking mechanisms, reducing the need for complex heavy lifting and positioning equipment while maintaining assembly precision
Solution Approach 2:
The assembly process employs dynamic sequencing where the first nacelle assembly is installed on the first tower section before the second tower section is connected, creating a stable platform that facilitates subsequent assembly operations and reduces the need for extensive heavy equipment intervention
Data Source
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AI summary
A wind turbine tower assembly device comprising a tower interface configured to be attached to a wind turbine tower during construction of the wind turbine tower, a nacelle interface for being attached to a part of a nacelle of a wind turbine and arranged to place the nacelle above a free end of a wind turbine tower which is attached to the tower interface; a lifting structure configured to move the nacelle interface relative to the tower interface to create a space between the free end of the wind turbine tower and the nacelle interface; a unit receiving structure configured to insert a tower unit into the space; and a tower assembly structure configured for joining the tower unit to the free end of the tower.