Energy-saving power-assisted vertical-axis wind turbine system

Abstract

The invention discloses an energy-saving power-assisted vertical-axis wind turbine system. The energy-saving power-assisted vertical-axis wind turbine system which comprises a base (1), a draught fantower stand column (2), a draught fan tower double eaves (3) and a draught fan tower top (4) which form a draught fan tower. A generator room (10) is located on the lowermost layer, and the other layers are draught fan layers (20). The energy-saving power-assisted vertical-axis wind turbine system further comprises an electric generator cooling liquid storage tank (90), a cooling liquid pump (91)and a cooler (92) which are sequentially connected to form a cooling liquid circulating loop. Each draught fan layer (20) is provided with a vertical-axis wind turbine system fan blade assembly (5). The bottom face of each draught fan layer (20) is provided with a ventilating opening (21). The cooler (92) is arranged on the top of the generator room (10). The heat generated by an electric generator (15) is carried by cooling liquid to the cooler (92) to be dissipated, the air is heated, and upward lift force is formed after the air is heated, the air sequentially passes through all the draughtfan layers (20) to form the upward air flow convective circulation, and the operations of all the vertical-axis wind turbine system fan blade assemblies (5) are assisted by powder. The energy-savingpower-assisted vertical-axis wind turbine system is widely applied to the wind power generation field.

Description

technical field [0001] The invention relates to a vertical axis wind power generation system. Background technique [0002] Wind power is a kind of clean energy, and it is widely used in environments with abundant wind resources. Structurally, wind power generation equipment can be divided into: a horizontal axis wind power generation system in which the rotation axis of the wind rotor is parallel to the wind direction, and a vertical axis wind power generation system in which the rotation axis of the wind rotor is perpendicular to the ground or the direction of the airflow. At present, the horizontal axis wind power generation has been developed to 15 MW, the tower height exceeds 200 meters, and the impeller diameter exceeds 180 meters. This poses a huge challenge to the design, installation, maintenance and reliability of large-scale wind power generation. On land, the power increase of land wind turbines is limited due to the difficulty of transportation due to the exces...

AI Technical Summary

Problems solved by technology

One of the reasons why the existing vertical-axis high-power wind power generation systems are not as popular as horizontal-axis wind turbines is that the greater the power, the larger the blades, and the weight of the blades makes it difficult to enlarge the cantilever beam structure

Therefore, the efficiency of the existing vertical axis wind power generation system is relatively low

[0004] The traditional large-scale megawatt-level wind power generation system is mostly shaped with a horizontal axis. Due to the thrust requirements, its wind blades are required to be very large and long, generally about 30 to 50 meters. Vertical axis generators The axis of the wind turbine is the center of the circle with the length of the wind blade as the radius, plus the safe height of the blade tip of the wind blade from the ground, the generator tower should be built to a height of 50-70 meters, so the overall equipment height is basically more than 100 meters; and Due to the rotation of the wind blades, it poses a great safety hazard to birds and aircraft in the airspace, and poses a great threat to the ecological balance of the environment; in addition, due to structural problems, once any part of the system fails, the overall equipment will be damaged. Stopping the operation will not only cause the loss of power generation, but also the maintenance is very difficult and the operation and maintenance cost is very high

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