WO2012097472A1

WO2012097472A1 - Cyclonic wind power generator

Info

Publication number: WO2012097472A1
Application number: PCT/CN2011/000090
Authority: WO
Inventors: 周建煌
Original assignee: 巨诺国际有限公司
Priority date: 2011-01-20
Filing date: 2011-01-20
Publication date: 2012-07-26
Also published as: CN102782313A

Abstract

A darrieus cyclonic wind power generator comprises a supporting shaft (11), darrieus wind impellers (6,7,8,9) which are located on the shaft, a main body (1) which can rotate around the supporting shaft in a horizontal plane, an acceleration channel around the main body, air current which generates in the acceleration channel and reelingly ascends, and airfoils (12) which are located in the acceleration channel. The main body, the acceleration channel and the airfoils are fixed mutually. By generating the ascending cyclone, the dynamic force of the vertical wind power generator is increased, and accordingly the utilization factor of the wind is enhanced.

Description

Cyclone wind turbine

Technical field

The present invention relates to the field of wind power generation equipment, and more particularly to a cyclonic wind power generator.

As a clean, renewable energy source, wind power is being developed and widely used around the world. The wind turbines used in the world today basically adopt the setting of horizontal blades. Although the horizontal wind turbine has high cost, high maintenance cost and high damage rate, its fan blade power generation efficiency is high, so it is still widely used. Vertical wind turbines (that is, wind turbines with vertical support shafts for wind turbines) have many advantages, but their blades are less efficient and therefore rarely used. Summary of the invention

SUMMARY OF THE INVENTION The present invention is directed to improving the power generation efficiency of a vertical wind turbine, specifically, increasing the power of a vertical wind turbine by generating an ascending cyclone, thereby improving the utilization of the wind.

A wind power plant according to the present invention, comprising a support shaft disposed on a main body of the support shaft, the main body being rotatable in a horizontal plane about the support shaft, surrounding an acceleration passage of the main body, forming a swirling airflow in the acceleration passage And a wing disposed in the acceleration passage, the main body, the acceleration passage and the wing being fixed to each other.

In a preferred embodiment, the body configuration is a cylindrical shape in which the upper and lower ends are hermetically sealed.

In one embodiment, a plurality of guides are disposed concentrically with the main body about the support shaft a flow plate, the baffle is supported by a bottom plate fixed to the support shaft, each baffle is spaced apart from the main body, a gap is left between the adjacent baffles, and the bottom of the baffle is sealed through the bottom plate, the baffle The top of the opening is open to form the acceleration passage.

In another preferred embodiment, the air gap is provided in the gap between adjacent baffles having a tapered airfoil section, the spacing of each baffle from the body being gradually reduced.

According to an embodiment of the invention, both ends of the wing are fixed to the deflector and the body. In particular, the wing is provided as a plurality of sets of wings that are fixed to the deflector and the body. The blades are of the same height as the baffles. DRAWINGS

Figure 1 shows a top view of a wind turbine of the present invention;

2 shows a wind power generator of the present invention, wherein the wing is provided with a plurality of sets of wing groups fixed to the deflector and the main body;

3 is a schematic view showing the airflow of the cyclone wind turbine of the present invention during operation; FIG. 4 is a view showing the rotary upward flow generated by the cyclone wind turbine of the present invention during operation;

Figure 5 shows the horizontal propulsion of airflow to the airfoil in the acceleration passage of the wind turbine of the present invention. detailed description

As shown in FIG. 1, the wind power generator of the present invention is shown, wherein the main body 1 of the generator is configured as a cylinder, the upper end and the lower end thereof are closed, and the center of the main body 1 is fixed to the support. The shaft 11 is rotated about the support shaft 11 in a horizontal plane.

A plurality of baffles 2, 3, 4, and 5 are disposed concentrically with the main body 1 around the support shaft 11. As shown in Fig. 2, each of the baffles 2, 3, 4, 5 is supported by a bottom plate 10 fixed to the support shaft 11 so as to rotate with the main body 1 about the support shaft 11. Each of the baffles 2, 3, 4, 5 is spaced apart from the body 1 with a gap between adjacent baffles. The bottoms of the deflectors 2, 3, 4, 5 are sealed by the bottom plate 10, and the top of the baffles is open. The main body 1 and the baffles 2, 3, 4, 5 together define an acceleration passage of the wind power generator of the present invention.

In conjunction with Fig. 2, a gap is left between adjacent baffles 3, 4, and peripheral blades 8 are disposed in the gap. Similarly, the peripheral blades can also be supported by the bottom plate 10 fixed to the support shaft 11. Preferably, the blades are of the same height as the baffles.

As shown in Figures 1 and 2, the cyclone wind turbine has a total of four baffles and four peripheral blades 6, 7, 8, and 9, thus forming a Darrying fan. It will be appreciated that other numbers of baffles and peripheral blades may also implement the present invention.

Referring to Fig. 2, the wing 12 is constructed to be disposed in an acceleration passage between the cylinder main body 1 and the deflector. In the embodiment shown in the figure, four sets of wings 12 are disposed in the acceleration passage of the deflector opposite the body of the drum. That is, each baffle corresponds to a set of wings. Preferably, the wing 12 is connected to a baffle and a cylindrical body 1, that is, one end of the wing 12 is connected to a baffle, and the other end of the wing 12 is connected to the main body 1, so that the wing, the deflector and the main body Coaxial rotation around the support shaft.

The airflow movement of the cyclone wind turbine of the present invention during operation will be described below with reference to Figs. As shown in Fig. 3, when the wind blows to the cyclone wind turbine, the peripheral blades form a Darrying fan, which is driven by the wind, and the cylindrical body and the deflector are due to them. The mutual fixed relationship rotates together. As shown in Fig. 3, the air flow (wind) passes through the blades at the gap (opening) between the adjacent baffles, thereby entering the acceleration passage between the baffle and the cylindrical body.

Since the cross section of the blade is gradually reduced, the airflow near the cylindrical body is accelerated, and the airflow is in the path of the acceleration passage of each of the deflector and the main body, and the interval between each baffle and the main body gradually becomes Reduced so that the airflow is further accelerated. When the accelerated airflow travels to the next peripheral blade, the airflow in the upper part of the blade is accelerated, increasing the wind speed difference between the upper and lower surfaces of the blade, so the lift generated by the blade is correspondingly increased, which is more conventional. The lift generated by the Darryle blades is greater.

As the airflow continues to enter the acceleration channel, the air pressure in the channel also increases. Since the bottom of the accelerating passage is closed and the upper portion is open, the accelerating airflow travels upward to form a rotating ascending airflow and exits from the top of the passage. See Figure 4, where the arrows indicate the flow of the airflow. The outside wind flows substantially horizontally, flowing through the opening above the passage, reducing the upward air pressure at the opening, so that the airflow in the acceleration passage is further accelerated to rotate upward, forming a strong rising swirling airflow.

Refer to Figure 5 to illustrate the effect of the rising swirling airflow generated in the accelerating channel on the wing set of the wind turbine. When the rising swirling airflow passes through the wing group in the acceleration passage, a lifting force is generated, and the horizontal component force forms a horizontal driving force to drive the wind turbine to rotate. As a result, the Darière blades of the peripherals and the built-in wing set form the horizontal thrust of the fan, which together push the fan to rotate. The airflow is also fully utilized in the acceleration passage, thereby increasing the utilization of the wind.

Claims

Claim

A wind power plant comprising:

Support shaft

a body disposed on the support shaft, the body being rotatable in a horizontal plane about the support shaft; an acceleration passage around the body, forming a rotationally rising airflow in the acceleration passage; a wing disposed in the acceleration passage, The main body, the acceleration passage and the wing are fixed to each other.

The wind power plant according to claim 1, wherein said main body has a cylindrical shape in which both upper and lower ends are sealed.

3. The wind power plant according to claim 1 or 2, wherein a plurality of baffles are disposed concentrically with the main body around the support shaft, the baffles being supported by a bottom plate fixed to the support shaft, each baffle The space is spaced apart from the main body, a gap is left between the adjacent baffles, and the bottom of the baffle is sealed by the bottom plate, and the top of the baffle is opened to form the accelerating passage.

The wind power plant according to claim 3, wherein the air gap is provided in a gap between adjacent baffles, the vane having a tapered airfoil section.

The wind power plant according to claim 3, wherein each of the baffles is gradually spaced from the main body to form an air flow accelerating passage.

6. The wind power plant according to claim 3, wherein both ends of the wing are fixed to the deflector and the body, respectively.

7. The wind power plant according to claim 3 or 6, wherein the wing is provided as a plurality of sets of wings fixed to the deflector.

The wind power plant according to any one of claims 4 to 6, wherein the blades are the same height as the deflector.