Wind power collection device, gas storage device, and power generation system

A wind power collection device, comprising an impeller, wherein an outer side wall of the impeller is composed of four mutually spliced flow guide surfaces, radial cross sections of the four mutually spliced flow guide surfaces correspond to four mutually spliced flow guide curves, the flow guide surfaces are formed by rotating and stretching the flow guide curves around an axis line of the impeller in an axial direction;

• the flow guide curves each comprise a segment of a convex first logarithmic spiral line and a segment of a concave second logarithmic spiral line, and the first logarithmic spiral line and the second logarithmic spiral line of the flow guide curves are smoothly and transitionally connected at one side of the axis line;
• it is defined that an extension line of the first logarithmic spiral line of each flow guide curve intersects with an extension line of the second logarithmic spiral line thereof at point A, an endpoint of the first logarithmic spiral line of the flow guide curve away from the point A is B, and an endpoint of the second logarithmic spiral line of the flow guide curve away from the point A is C;
• wherein, it is defined that a length of AB line is L1, and a length of AC line is L2;
• wherein L1=0.8-1.2L2;
• ∠BAC=90-115°.