Efficient self-variable-pitch vertical shaft fan and working method thereof

Abstract

The invention discloses an efficient self-variable-pitch vertical shaft fan and a working method thereof. The efficient self-variable-pitch vertical shaft fan comprises a fan main shaft, a first through hole is formed in the outer side surface of the fan main shaft in a penetrating mode, a second through hole is formed in the bottom of the first through hole, the first through hole and the second through hole are perpendicularly distributed, mounting grooves are formed in the positions, under the first through hole and the second through hole, of the outer side surface of the fan main shaft, and the mounting grooves do not penetrate through the fan main shaft. The multiple fan blades are evenly distributed on the outer side of the fan main shaft at a certain included angle, pull rods pull fan supporting rods to swing around the fan main shaft in a reciprocating mode under the action of the two corresponding fan blades which are perpendicularly distributed, connecting rods, air springs, strip-shaped holes and round short shafts, adaptive changes of the angles of the fan blades are achieved, and the windward area of one side is maximum, and the windward area of the other side is almost zero, so that the effects of reducing resistance and increasing efficiency are achieved, the wind energy utilization rate is improved, and the advantages of a horizontal shaft fan and a vertical shaft fan are integrated.

Description

technical field [0001] The invention relates to the technical field of fan power generation, in particular to a high-efficiency self-variable pitch vertical-axis fan and its working method. Background technique [0002] The competition for fossil energy is becoming increasingly fierce, and the unavoidable high pollution characteristics of fossil energy have caused countries all over the world to pay attention to clean and renewable energy. Wind energy, as a renewable energy source that is clean, pollution-free, has large reserves, and is easy to exploit, is the focus of development by countries all over the world. [0003] Wind turbines have developed rapidly all over the world. Horizontal-axis fans have occupied most of the market share with absolute advantages, but the development of vertical-axis fans has lagged behind. However, in recent years, with people's research on vertical-axis fans, The unique structure and excellent performance of vertical axis fans are graduall...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-efficiency self-variable pitch vertical-axis fan and its working method to solve the problems that the traditional resistance-type vertical-axis fan cannot achieve a high wind energy utilization rate, and the shape of the blade is relatively complicated and the production cost is high.

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