IMPELLER TURBINE, AND VERTICAL AND HORIZONTAL OCEAN ENERGY POWER GENERATION APPARATUSES USING SAME

摘要

Disclosed is an impeller turbine, comprising: a central shaft (1); an annular disc (2) fixedly arranged on the central shaft (1) by means of spokes (3), wherein the radial direction of the annular disc (2) is perpendicular to the central shaft (1); a plurality of vanes (4) circumferentially provided on the annular disc (2), the vanes (4) being parallel to the central shaft (1); wherein the number of the vanes (4) is at least 66, and at most an integer of the value in mm of the outer diameter circumferential length of the annular disc (2); the vanes (4) are arcuated, and the sum of the arc lengths of all of the vanes (4) is between 0.85 - 2 times the outer diameter circumferential length of the annular disc (2); the included angle of line segments from the central point of a vane (4) to the two endpoints thereof constitutes vane included angle A, the vane included angle A being between 100 - 165 degrees; and the included angle of a maximum chord length line of the vane (4) and a radius line of the annular disc (2) that passes through the outer endpoint of the vane (4) is vane mounting angle B, the vane mounting angle B being between 25 - 60 degrees. Also disclosed is a vertical ocean energy collection and power generation apparatus and a horizontal ocean energy collection and power generation apparatus that have the impeller turbine. Under a certain working condition, the efficiency of an impeller turbine is proportional to the number of vanes, and thus an impeller turbine with a super large number of vanes can improve the efficiency of the impeller turbine.