Inflatable Blade Sleeve Support for Wind Turbine Maintenance
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Solution Overview
Problem
Existing maintenance systems for wind turbine blades are unsafe, costly, and time-consuming, particularly for offshore turbines, due to the difficulty in accessing blades at height and the need for complex maneuvering of large airships or pre-installed attachment devices, which are not universally applicable.
Innovation Solution
A device comprising a sleeve with inflatable parts that surrounds the blade, allowing easy installation and removal, providing a stable support structure for maintenance crew, with features like inflatable ribs and anchoring means for secure clamping and fall protection, enabling safer, faster, and more cost-effective maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an air ship is used to support maintenance crew on the blade, then crew safety is improved, but device complexity and operational cost increase significantly
Solution Approach 1:
The patent employs an inflatable sleeve made of flexible material that can be inflated to provide support for maintenance crew on the blade. This flexible shell approach replaces the complex rigid air ship structure with a simpler inflatable membrane system that achieves the same safety function with reduced complexity
Solution Approach 2:
The invention uses pneumatic inflation of the sleeve to create the support structure on the blade. By inflating the sleeve with air or gas, the system achieves the necessary structural support and safety platform without requiring complex mechanical or rigid structures, thereby reducing device complexity while maintaining crew safety
2Reliability
If an air ship is maneuvered to the blade for maintenance, then crew safety is improved, but time consumption increases due to slow maneuvering and safety precautions
Solution Approach 1:
The maintenance system is segmented into separate functional components: the inflatable sleeve that attaches to the blade, the inflation mechanism, and the support structure. This segmentation allows for rapid deployment and attachment without the need for slow, careful maneuvering of a large integrated air ship, significantly reducing time consumption while maintaining safety
Solution Approach 2:
The inflatable sleeve provides a dynamic support structure that can be quickly inflated and deployed on the blade. This dynamic system replaces the static, slow-to-position air ship with a flexible structure that can be rapidly installed and removed, reducing the time required for maintenance operations while ensuring crew safety
3Ease of operation
If attachment devices are pre-installed on the blade during manufacturing, then ease of maintenance is improved, but adaptability decreases as existing turbines cannot be serviced
Solution Approach 1:
The inflatable sleeve is designed to attach to existing blade structures without requiring pre-installed attachment devices. The sleeve can be prepared and positioned in advance, then quickly attached to the blade using existing attachment points or clamping mechanisms, providing easy maintenance access while maintaining adaptability to various blade types including those already installed on turbines
4Reliability
If the blade is taken down for maintenance, then crew safety is improved, but productivity decreases due to time-consuming reinstallation
Solution Approach 1:
The inflatable sleeve acts as an intermediary support structure that brings the maintenance platform to the blade rather than removing the blade for maintenance. This intermediary structure allows crew to work safely on the blade in its installed position, eliminating the need for time-consuming removal and reinstallation while maintaining high productivity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device enables safer, easier, and faster maintenance of wind turbine blades by allowing easy access and reducing the need for complex maneuvering, while being universally usable on various blades, including those already installed, thus enhancing crew safety and reducing operational costs.
Implementation Method 1
the sleeve (4) comprises at least one inflatable part (5-8) which is changeable between a deflated state and an inflated state
Data Source
Figure 1A~1C
Figure 2
Figure 3
AI summary
Device for forming a temporary support structure for maintenance crew for a blade of a wind turbine, the device comprising a sleeve configured to surround the blade, at least a longitudinal section thereof, wherein the sleeve comprises at least one inflatable part which is changeable between a deflated state and an inflated state when the sleeve surrounds the blade, wherein in the deflated state the sleeve is movable with respect to the blade for positioning the sleeve with respect to the blade, wherein in the inflated state the sleeve is configured to clamp the sleeve with respect to the blade, wherein, at least in the inflated state, the sleeve is configured to form a support structure along the blade for supporting maintenance crew for the blade thereon.