Multi-sided Intake Structure for Wind Turbine Tower Door Ventilation
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Solution Overview
Problem
Existing wind turbine tower systems face challenges in efficiently introducing fresh air into the down tower area due to limited air flow and filter clogging, particularly in environments with high particulate concentrations, requiring complex and expensive modifications or equipment.
Innovation Solution
A multi-sided intake structure connected to the door panel of the wind turbine tower, allowing air to be drawn from multiple directions through louvered panels that can be manually or automatically opened, combined with a two-stage filtering system to filter larger and finer particulates, providing improved airflow and filtration without substantial modifications to existing structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional louvers and filters are used in the tower door, then fresh air can be introduced into the down tower area, but the cross-sectional area for air flow is limited and filters become quickly clogged
Solution Approach 1:
The patent transitions from conventional two-dimensional louver panels to a three-dimensional multi-sided intake structure that extends outward from the door panel. This vertical extension creates additional air intake surfaces on multiple sides (front, rear, and lateral surfaces), effectively increasing the air flow cross-sectional area without requiring larger door openings, thereby resolving the contradiction between reliable air introduction and flow efficiency.
2Object-affected harmful factors
If filters are installed in the tower door louver, then air can be filtered, but filters become quickly clogged in environments with heavy air particulate concentrations
Solution Approach 1:
The patent divides the single filter into multiple separate filters distributed across different sides of the multi-sided intake structure. Each filter serves a specific air intake surface, allowing individual filters to be smaller and easier to clean or replace. This segmentation reduces the burden on each individual filter and improves overall system reliability in high particulate environments.
3Productivity
If complex air handling equipment or substantial modifications to tower segments are used, then air circulation can be improved, but the system becomes expensive and difficult to retrofit
Solution Approach 1:
The multi-sided intake structure is designed as a universal component that can be attached to existing tower door panels without requiring substantial modifications to the tower segments. The structure serves multiple functions: increasing air intake area, providing mounting surfaces for filters, and maintaining structural integrity. This multi-functionality allows improved air circulation while avoiding complex air handling equipment and expensive retrofits.
Data Source
AI summary
A wind turbine tower includes a door access opening in a down tower area of the tower. A hinged door panel covers the door access opening, with a ventilation opening defined through the door panel. A multi-sided intake structure, such as a box-like structure, is connected to an exterior of the door panel over the first ventilation opening. The intake structure extends transversely from the door panel and includes a top side, a bottom side, and at least two vertical sides extending between the top side and the bottom side. The vertical sides are open to air flow therethrough. The top and bottom sides may also be open to air flow therethrough. Air from multiple directions is drawn into an interior of the wind turbine tower through the intake structure and ventilation opening. A filtering system with first and second stage filters may be incorporated with any of the intake structures.