VERTICAL AXIS-TYPE HYDRAULIC POWER GENERATION DEVICE, VERTICAL AXIS-TYPE HYDRAULIC POWER GENERATION UNIT, AND VERTICAL AXIS-TYPE HYDRAULIC POWER GENERATION BLADE

摘要

This vertical axis-type hydraulic power generation device 10 is provided with: a power generator 50 which generates power using a rotating drive force received from a water flow; a vertical rotating shaft 20 which is rotatably coupled with the power generator 50 and extends downward in a vertical direction; and a plurality of blades 13 which are disposed at substantially regular angular intervals in a circumferential direction around the vertical rotating shaft 20, wherein the plurality of blades 13 are formed as linear blades which are formed extending in the vertical direction and which have a lateral cross sectional shape comprising an airfoil shape X, the airfoil shape X having a trailing edge formed in an arc shape 13a with a curvature. Thus, the airfoil shape of the blade is optimized to obtain an airfoil shape which maintains, even when used for hydraulic power generation involving a large load from the water flow, blade performance with which it is possible to obtain high output while eliminating a lack of strength of the trailing edge.