CN101493072A - Vertical shaft wind mill with wind gathering device - Google Patents

Abstract

The invention belongs to the field of wind power generating equipment, and more particularly provides a vertical axis wind turbine provided with a wind collecting device. The windward end of the vertical axis wind turbine is provided with the funnel shaped wind collecting device to lead a wind wheel which can continuously provide power for the vertical axis wind turbine to directly receive wind, while a wind wheel that causes resistance for the vertical axis wind turbine can not receive wind. The wind collecting device improves the utilized wind energy density, thereby increasing the power of the whole wind machine; as the wind only provides power and does not cause resistance, the biggest weak point of the vertical axis wind turbine can be overcome, and the efficiency of the vertical axis wind turbine can be improved.

Description

A vertical axis wind turbine with a wind collecting device

technical field

The invention belongs to the field of wind power generation equipment, and in particular provides a vertical axis wind machine with a wind collecting device.

Background technique

All countries in the world are facing the dual pressure of conventional energy shortage and environmental protection. In recent years, the rapid development and application of renewable energy power generation has played a very important role in alleviating the current energy pressure. Wind power is one of the fastest growing renewable energy sources, with an average annual growth rate of 30% in the past two decades. At present, the mainstream wind turbines all use horizontal-axis wind turbines. The reason is that the efficiency of vertical-axis wind turbines is relatively low. However, the vertical axis wind turbine also has many advantages. If it can be utilized properly, it will definitely inject new vitality into the development of wind power. In general vertical axis wind turbines, the blades on both sides of the shaft in the windward direction act on the shaft in the opposite direction of moment after receiving the wind, so they cancel each other out, resulting in poor wind energy utilization. In addition, the density of wind energy itself is low, and it is inconvenient to use it.

Contents of the invention

The invention aims at the deficiencies of the existing wind power generation technology, and provides a vertical axis wind machine with a wind collecting device. It is characterized in that a funnel-shaped wind collecting device 2 is arranged at the windward end of the vertical axis wind turbine 1, so that only the wind rotor 4 that can continuously provide power for the vertical axis wind turbine 1 receives the wind directly, while the vertical axis wind turbine 1 receives wind directly. The wind wheel 4 that makes resistance is not subjected to wind.

The structure of the vertical axis wind turbine 1 is: two or more wind wheels 4 are evenly arranged on the vertical axis 3 .

The shapes of the wind wheel 4 include circular, S-shaped, and spoon-shaped.

The wind collecting device 2 has a large air inlet and a small air outlet, which is funnel-shaped, and its function is to guide the wind that originally forms resistance to the wind wheel 4 that provides power for the vertical axis wind turbine 1 .

The beneficial effects of the present invention are: the wind gathering device increases the density of wind energy utilized, thereby increasing the power of the entire wind turbine; the wind energy only provides power and does not create resistance, which overcomes the biggest weakness of the vertical axis wind turbine and makes the vertical axis wind power Machine efficiency is improved.

Description of drawings

Fig. 1 is the schematic diagram of vertical axis wind turbine of the present invention;

Fig. 2 is the front view of the wind gathering device in the present invention;

Fig. 3 is the top view of the wind collecting device in the present invention;

Fig. 4 is a schematic diagram of the principle of a vertical axis wind turbine with a wind collecting device in the present invention.

Labels in the figure:

1-vertical axis wind turbine; 2-wind collecting device; 3-vertical axis; 4-wind wheel.

Detailed ways

The present invention provides a vertical-axis fan with a wind gathering device, and the present invention will be further described below through the description of the drawings and specific embodiments.

1 to 4 are structural schematic diagrams of a vertical axis wind turbine, a wind collecting device, and a vertical axis fan with a wind collecting device. Two circular wind wheels 4 are evenly arranged on the vertical axis 3 to form a vertical axis wind turbine 1; a funnel-shaped wind collecting device 2 with a large air inlet and a small air outlet is arranged at the windward end of the vertical axis wind turbine 1 , so that only the wind rotor 4 that can continuously provide power for the vertical axis wind turbine 1 is directly exposed to the wind, while the wind rotor 4 that creates resistance for the vertical axis wind turbine 1 is not affected by the wind.

The wind gathering device gathers the large-area wind into the gradually narrowing channel, and concentrates blowing on the blades of the wind turbine to increase the power of the wind turbine. Moreover, the wind that might otherwise form resistance is also guided to the blades that provide power, which increases power while avoiding resistance.

Claims (4)

1. vertical axis windmill that has wind-gathering device, it is characterized in that, windward side at vertical axis windmill (1) is provided with funnel shaped wind-gathering device (2), make and to have only wind wheel (4) the direct wind-engaging just that can continue to provide power for vertical axis windmill (1), and the wind wheel (4) of giving vertical axis windmill (1) manufacturing resistance wind-engaging not.

2. a kind of vertical axis windmill that has wind-gathering device according to claim 1 is characterized in that, the structure of described vertical axis windmill (1) is: 2 or 2 above wind wheels (4) evenly are set on vertical shaft (3).

3. a kind of vertical axis windmill that has wind-gathering device according to claim 2 is characterized in that the shape of described wind wheel (4) comprises circle, S shape, scoop.

4. a kind of vertical axis windmill that has wind-gathering device according to claim 1, it is characterized in that, the intake grill of described wind-gathering device (2) is big, air-out is young, be funnel shape, its effect is will originally form the wind of resistance to be directed to vertical axis windmill (1) and to provide on the wind wheel (4) of power.

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