Bionic axial flow wind wheel
An axial flow wind and hub technology, which is applied to the components of the pumping device for elastic fluids, non-variable-capacity pumps, machines/engines, etc. , The effect of improving the performance of the wind turbine and reducing the noise
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Embodiment 1
[0045] Such as figure 1 with 2 As shown, a bionic axial flow wind wheel includes a hub 2 and a blade 1 installed on the circumferential side wall of the hub 2, and the material of the wind rotor blade 1 is one of plastic, metal or a combination of both . The blade 1 includes a blade root 11 and a blade top 12, the blade root 11 is a part in contact with the hub 2, the blade top 12 is opposite to the blade root 11 and away from the blade root 11 Part, the blade 1 also includes a blade leading edge 13 and a blade trailing edge 14 opposite to the blade leading edge 13, along the direction from the blade leading edge 13 to the blade trailing edge 14, the contour line at the blade leading edge 13 Include at least two curves with opposite bending directions. The projection line of the contour line of the leading edge 13 of the blade and the plane perpendicular to the axis of the hub 2 also includes at least two curves with opposite bending directions.
[0046] The blade leading ...
Embodiment 2
[0056] Such as Figure 8 As shown, this embodiment only describes the differences from the above embodiments. In this embodiment, the contour line of the leading edge 13 of the blade includes the first contour line ab close to the blade root 11, and the first contour line ab away from the blade root 11. 11 and the second contour line bc connected with the first contour line ab, the first contour line ab and the second contour line bc are curves with opposite bending directions, and the center of curvature of the first contour line ab Located on the outer side of the blade leading edge 13 and set away from the blade leading edge 13, so that the first contour line ab bends toward the blade trailing edge 14 and inwardly of the blade; the curvature of the second contour line bc The center is located on the inner side of said blade leading edge 13 and close to said blade leading edge 13 so that the second contour line bc is curved towards the blade leading edge 13 towards the blade...
Embodiment 3
[0058] This embodiment only describes the differences from the above embodiments. In this embodiment, the blade tip 12 is provided with multi-layer deflecting parts 121. The number of the deflecting parts 121 is at least two layers. The deflection parts 121 are sequentially arranged at intervals from the blade trailing edge 14 to the blade leading edge 13 , and multiple layers of the deflection parts 121 make there be several gaps on the blade tip 12 along the blade leading edge 13 to the blade trailing edge 14 . That is, there is a gap between every two layers of deflecting parts 121 . This design structure is similar to the multi-layer feather structure at the top of a bird's feather, and the multi-layer deflecting parts 121 are deflected toward the suction surface at the same time.
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