Wind guide device for vertical axis wind turbine

Abstract

The utility model discloses a wind guide device for a vertical axis wind turbine, which comprises a flange plate, an outer cylinder body, an inner cylinder body, a cover ring, a one-way wind valve and a wind guide plate, the inner cylinder body is vertically arranged on the flange plate and positioned on the inner side of the outer cylinder body, the cover ring is arranged at the top of the outer cylinder body and the top of the inner cylinder body, and the one-way wind valve is arranged on the cover ring. The inner barrel is arranged in the outer barrel so as to form an annular cavity between the outer barrel and the inner barrel, the air deflectors are vertically arranged on the outer side of the outer barrel and extend in the radial direction of the outer barrel, air inlets located between every two adjacent air deflectors are formed in the outer barrel, and the one-way air valves are arranged in the air inlets; and air outlets which are in one-to-one correspondence with the air inlets and obliquely point to the blades in the inner barrel are formed in the inner barrel. According to the wind guide device for the vertical axis wind driven generator, the problem of dead wind of the blades is avoided, the wind power generation efficiency is improved, and the working stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical-axis wind turbines, in particular to a wind guiding device for a vertical-axis wind turbine. Background Art

[0002] Wind energy is a kind of green energy. Wind energy can be used for power generation. In areas with rich wind resources, it can replace traditional thermal power generation and reduce environmental pollution.

[0003] Wind turbines are divided into two types: vertical-axis wind turbines and horizontal-axis wind turbines. In the application of large-scale wind turbines, horizontal-axis wind turbines are mainly used. This is because when a vertical-axis wind turbine is working, some of the rotating blades are on the windward side, while some are on the leeward side, canceling out part of the wind force and resulting in low utilization rate. In the prior art, the utility model patent with the application number 2015206537710 discloses an efficiency-enhancing and buffering vertical-axis wind turbine, which adjusts the angle by using the flipping of the blades to improve the wind receiving effect, and uses a buffering and efficiency-enhancing device for buffering when the blades flip. However, it is not conducive to the high-speed rotation of the vertical axis. Although the flipping of the blades is buffered by the buffering and efficiency-enhancing device, it is still easy to be damaged under the long-term flipping impact, with poor stability and needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a wind guiding device for a vertical-axis wind turbine to guide the wind and increase the power generation efficiency.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A wind guiding device for a vertical-axis wind turbine, comprising: a flange plate, an outer cylinder, an inner cylinder, a retaining ring, a one-way air valve and a wind guiding plate. The flange plate is horizontally arranged on the top of the housing of the vertical-axis wind turbine. The outer cylinder is vertically arranged on the flange plate. The inner cylinder is vertically arranged on the flange plate and is located inside the outer cylinder. A rotating shaft extending upward into the inner cylinder is arranged in the vertical-axis wind turbine. Blades are spaced apart on the outer side of the rotating shaft. The retaining ring is arranged on the tops of the outer cylinder and the inner cylinder to form an annular cavity between the outer cylinder and the inner cylinder. The wind guiding plate is vertically arranged on the outer side of the outer cylinder and extends along the radial direction of the outer cylinder. Adjacent two wind guiding plates form a V-shaped angle. An air inlet located between adjacent two wind guiding plates is arranged on the outer cylinder. The one-way air valve is arranged in the air inlet. Air outlets corresponding to the air inlets one by one and obliquely pointing to the blades inside the inner cylinder are arranged in the inner cylinder.

[0007] Wherein, the rotating shaft, the inner cylinder and the outer cylinder are concentric.

[0008] Among them, the one-way air valve includes a hinge and a baffle. The hinge is arranged on one side of the air inlet, the baffle is arranged on the hinge, and one end of the baffle away from the hinge extends into the cavity.

[0009] Among them, a torsion spring is arranged on the hinge to force one end of the baffle away from the hinge to abut against the inner wall of the outer cylinder.

[0010] Among them, rubber pads are respectively arranged on both sides of one end of the baffle away from the hinge.

[0011] Among them, the blades are vertically arranged outside the rotating shaft.

[0012] The beneficial effects of the present utility model: A wind guiding device for a vertical axis wind turbine uses the V-shaped angle between adjacent two wind guiding plates to guide the wind, has good adaptability to the wind direction. The air flow at the downwind side impacts the one-way air valve, causing the one-way air valve to open. The air flow blows through the air outlet to the windward surface of the blades, avoiding the problem of the blades facing against the wind, improving the efficiency of wind power generation, having a simple structure and high working stability. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is Figure 1 the top view of

[0015] Figure 3 is Figure 2 the partial enlarged view of part A in

[0016] Figure 4 is Figure 3 the schematic structural diagram after the one-way air valve is opened in Detailed Embodiments

[0017] Next, in combination with Figures 1 to 4 and through specific embodiments, the technical solution of the present utility model will be further described.

[0018] Such as Figures 1 to 3 the wind guiding device for a vertical axis wind turbine shown, which is used for guiding and increasing the efficiency of the vertical axis wind turbine 1, includes: a flange 2, an outer cylinder 5, an inner cylinder 8, a retaining ring 4, a one-way air valve 7 and a wind guiding plate 3. The flange 2 is horizontally arranged on the top of the housing of the vertical axis wind turbine 1 and can be fixed by screws, with a firm structure.

[0019] The outer cylinder 5 is vertically arranged on the flange 2, the inner cylinder 8 is vertically arranged on the flange 2 and is located inside the outer cylinder 5. The bottoms of the outer cylinder 5 and the inner cylinder 8 are welded and fixed to the flange 2, with good airtightness.

[0020] Such as Figure 2As shown in the figure, a rotating shaft 6 extending upward into the inner cylinder 8 is provided in the vertical axis wind turbine 1. Blades 9 are arranged at intervals outside the rotating shaft 6. In this embodiment, the blades 9 are vertically arranged outside the rotating shaft 6 and are evenly distributed. The rotating shaft 6, the inner cylinder 8 and the outer cylinder 5 are concentric, so that the blades 9 rotate with the rotating shaft 6 in the inner cylinder 8.

[0021] As Figure 1 shown, a cover ring 4 is arranged at the tops of the outer cylinder 5 and the inner cylinder 8 to form an annular cavity 10 between the outer cylinder 5 and the inner cylinder 8 for wind collection. The air guide plates 3 are vertically arranged outside the outer cylinder 5 and extend along the radial direction of the outer cylinder 5. The adjacent two air guide plates 3 form a V-shaped angle. The V-shaped angle of the adjacent two air guide plates 3 is used to guide the wind, and the adaptability to the wind direction is good, and it can receive wind in all directions of 360 degrees.

[0022] As Figure 3 shown, an air inlet 51 located between two adjacent air guide plates 3 is arranged on the outer cylinder 5. A one-way air valve 7 is arranged in the air inlet 51. An air outlet 81 corresponding to the air inlet 51 one by one and obliquely pointing to the blades 9 in the inner cylinder 8 is arranged in the inner cylinder 8. As Figure 4 shown, the air flow at the downwind side impacts the one-way air valve 7, so that the one-way air valve 7 is opened, and the air flow blows to the windward surface of the blades 9 through the air outlet 81, avoiding the problem of the blades 9 facing against the wind, improving the efficiency of wind power generation, and the overall structure is simple and the working stability is high.

[0023] In this embodiment, the one-way air valve 7 includes a hinge 71 and a baffle 72. The hinge 71 is arranged on one side of the air inlet 51. The baffle 72 is arranged on the hinge 72, and the end of the baffle 72 far from the hinge 71 extends into the cavity 10. A torsion spring forcing the end of the baffle far from the hinge to abut against the inner wall of the outer cylinder 5 is arranged on the hinge 71 to elastically close the air inlet 51.

[0024] Rubber pads 73 are respectively arranged on both sides of the end of the baffle 72 far from the hinge 71. As Figure 3 and Figure 4 shown, the rubber pads 73 on both sides of the baffle 72 can contact the outer wall of the inner cylinder 8 or the inner wall of the outer cylinder 5 when the baffle 72 is opened or closed for buffering, reducing the impact and noise problems.

[0025] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. A wind guide device for a vertical axis wind turbine, used for improving wind guide efficiency of a vertical axis wind turbine, characterized in that: include: A flange, an outer cylinder, an inner cylinder, a cover ring, a one-way air valve and an air guide plate, wherein the flange is horizontally arranged on the top of the shell of the vertical axis wind turbine, the outer cylinder is vertically arranged on the flange, the inner cylinder is vertically arranged on the flange and is located on the inner side of the outer cylinder, the vertical axis wind turbine is provided with a rotating shaft extending upward into the inner cylinder, blades are arranged at intervals on the outside of the rotating shaft, the cover ring is arranged on the top of the outer cylinder and the inner cylinder to form an annular cavity between the outer cylinder and the inner cylinder, the air guide plate is vertically arranged on the outside of the outer cylinder and extends radially along the outer cylinder, and two adjacent air guide plates form a V-shaped angle, the outer cylinder is provided with an air inlet located between the two adjacent air guide plates, the one-way air valve is arranged in the air inlet, and the inner cylinder is provided with an air outlet corresponding to the air inlet one by one and obliquely pointing to the blades in the inner cylinder.

2. The wind guide device for a vertical axis wind turbine according to claim 1, characterized in that: The rotating shaft, the inner cylinder and the outer cylinder are cocentric.

3. The wind guide device for a vertical axis wind turbine according to claim 1, characterized in that: The one-way air valve comprises a hinge and a baffle, wherein the hinge is arranged at one side of the air inlet, the baffle is arranged on the hinge, and one end of the baffle away from the hinge extends into the cavity.

4. The wind guide device for a vertical axis wind turbine according to claim 3, characterized in that: The hinge is provided with a torsion spring which forces one end of the baffle away from the hinge to abut against the inner wall of the outer cylinder.

5. The wind guide device for a vertical axis wind turbine according to claim 3, characterized in that: Rubber pads are respectively arranged on both sides of one end of the baffle away from the hinge.

6. The wind guide device for a vertical axis wind turbine according to claim 1, characterized in that: The blades are vertically arranged outside the rotating shaft.

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