Rotating air foil wind turbine

Abstract

The invention relates to a wind turbine, in particular to a rotating air foil wind turbine. A spindle with threads is jointed with an upper moving shaft with internal threads, and when an electromotor rotates, the upper moving shaft moves on the spindle to make more than one inner air foil tray and more than one outer air foil tray which are arranged on the moving shaft and are connected by usingsteel wire ropes simultaneously move upwards and downwards so as to unfold or fold the whole wind turbine, and when the wind is heavy, the wind turbine is folded to protect the wind turbine. More than two outer air foils on the outer air foil trays expand and rotate to apply work when rotating to the windward side, and when rotating to the other side, the outer air foils are folded to reduce headwind resistance. Meanwhile, more than two inner air foils on the inner air foil trays expand and rotate in the opposite direction to apply work when rotating to the folding side of the outer air foils, and when rotating to the other side, the inner air foils are folded to reduce the headwind resistance. The inner and outer air foils at the two sides of the spindle simultaneously expand and rotate to apply work so that the wind power utilization area is large, and the wind power utilization efficiency is high. The stress acting on the two sides of the spindle is balanced, the structure is solid, and wind blowing from any direction can rotate the wind turbine. The rotating air foil wind turbine is installed on the ground to be used for generating electricity or other motive power, and is more suitable to be installed on ships for generating electricity or motive power.

Description

Technical field: [0001] The invention relates to a wind power machine, in particular to a sail type wind power machine. technical background: [0002] Most of the current practical wind turbines are propeller-type wind turbines to drive generators. The space occupied by the propellers makes the supporting components huge, high in cost, small in the wind receiving area of ​​the propellers, low in wind energy utilization efficiency, and the size and angle of the propellers cannot be controlled by the wind. The size of the force changes with the wind speed. When the wind speed is high, it is easy to damage the wind turbine, and the maintenance cost is high. Now the electricity price of wind energy is higher than that of hydropower, thermal power, and atomic energy. [0003] Some wind turbines rotate horizontally on the column, and its structure is that the wind panels on both sides rotate on the column. When one side rotates against the wind, the other side of the wind panel, o...

AI Technical Summary

Problems solved by technology

[0002] Most of the current practical wind turbines are propeller-type wind turbines to drive generators. The space occupied by the propellers makes the supporting components huge, high in cost, small in the wind receiving area of ​​the propellers, low in wind energy utilization efficiency, and the size and angle of the propellers cannot be controlled by the wind. The size of the force changes accordingly. When the wind speed is high, it is easy to damage the wind turbine, and the maintenance cost is high for various reasons. Now the electricity price of wind energy is higher than that of hydropower, thermal power, and atomic energy.

[0003] Some wind turbines rotate horizontally on the column, and its structure is that the wind panels on both sides rotate on the column. When one side rotates against the wind, the other side of the wind panel, or when rotated to the other side, it forms a headwind to block the rotation, so that the efficiency of wind energy utilization is low. , The mechanical efficiency is also low, and when the wind is strong, the lateral stress will be generated on the column, which will make the whole wind turbine structure unbalanced and easily damage the wind turbine.

[0004] So far, the sails used on the ship have the advantages of higher wind energy utilization rate than any wind turbine when the wind is downwind, and can be folded to protect the sail equipment when the wind speed is high or not in use. However, the efficiency decreases when the side wind blows. Used on ships that are moving forward, the sails cannot rotate to drive generators and other operating equipment

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