A wind turbine blade equipped internally with collection means
A technology of wind power generators and collection devices, applied in the field of blades, can solve problems such as endangering the surrounding environment
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[0025] Figure 1 is a cross-sectional view of a blade 101 for a wind turbine. Typically, a blade is assembled from two blade shells and some internal support posts 105 so that the blade includes one or more cavities. In order to also allow moisture to flow out of the blade during use, a plurality of drainage holes 102 are provided on the blade. In the example given, the drainage holes 102 are provided at the tip 103 of the blade, and at the rear right of the outermost part of the rear edge 104 of the blade. According to one embodiment of the present invention, a plurality of filters 106 are provided inside the blade 101 . Advantageously, they are located in front of each drainage hole 102 so that objects or particles larger than the mesh of the filter cannot enter the drainage holes 102 and accordingly do not block the drainage holes. Smaller particles either pass through the filter or are captured by it. According to another embodiment of the invention, the filter is arrang...
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