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Invention Grant
CN101287905B 风力涡轮机叶片 失效 - 权利终止

风力涡轮机叶片
Abstract:
本发明公开了一种风力涡轮机叶片(10)，该风力涡轮机叶片包括根部区域(13)、在该根部区域处的叶片内的隔板(20)和用于排出在叶片内冷凝的水的装置。排水装置包括形成在根部区域处叶片的表面上的四个孔(30)，其中两个孔在隔板的一侧，两个孔在另一侧；对于它们在叶片表面上的角位置，两个孔位于叶片的吸引侧上，另两个孔位于叶片的挤压侧上。孔(30)设有从叶片的外表面向外凸出的凸出部(35)，从而防止沿叶片外表面流下的水进入叶片。
Abstract(English):

Wind turbine blade (10) which comprises a root area (13), an enclosure (20) inside the blade at the root area, and means for draining off water that condensates inside the blade. The draining means comprise four bores (30) formed on the surface of the blade at the root area, two at one side of the enclosure and two at the other side; as for their angular position on the surface of the blade, two bores are located on the suction side of the blade and two other bores are located on the pressure side of the blade. The bores (30) are provided with a protrusion (35) protruding outwards from the outer surface of the blade, so that water flowing down the outer surface of the blade is prevented from entering the blade.

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