Wind collection device and wind energy conversion equipment

Abstract

The present invention discloses a wind collecting device, comprising at least two stacked and spaced mounting plates, the surfaces of the two adjacent mounting plates facing each other respectively comprising a mounting area for mounting a wind wheel and a gradient surface area surrounding the mounting area, the thickness of the mounting plate corresponding to the gradient surface area is gradually reduced when approaching the edge of the mounting plate, a wind wheel for wind collecting is arranged between the mounting areas of the two adjacent mounting plates close to each other, the gradient surface areas of the two adjacent mounting plates close to each other compress the airflow passing through the two adjacent mounting plates, so that the gap between the two adjacent mounting plates is formed into a wind tunnel structure. The present invention improves the wind collecting efficiency of the wind collecting device, thereby improving the power generation efficiency of the wind energy conversion equipment using the wind collecting device of the present invention.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a wind collection device and wind energy conversion equipment. Background Art

[0002] There are two types of wind turbines: horizontal-axis wind turbines and vertical-axis wind turbines. Compared with horizontal-axis wind turbines, vertical-axis wind turbines can directly use wind blowing from multiple directions, so there is no need to set up the windward turning device of horizontal-axis wind turbines, so the structure of the machine body can be simplified and the manufacturing cost can be saved. However, due to structural design and other reasons, the power generation per unit area of ​​vertical-axis wind turbines is currently lower than that of horizontal-axis wind turbines. Summary of the invention

[0003] In view of the shortcomings of the prior art, one aspect of the present invention provides a wind collection device, comprising at least two stacked and spaced mounting plates, wherein the surfaces of two adjacent mounting plates facing each other respectively include a mounting area for mounting a wind wheel and a gradient surface area surrounding the mounting area, and the thickness of the mounting plate corresponding to the gradient surface area decreases as it approaches the edge of the mounting plate, and a wind wheel for collecting wind is arranged between the mounting areas of the two adjacent mounting plates that are close to each other, and the gradient surface areas of the two adjacent mounting plates that are close to each other compress the airflow passing through the two adjacent mounting plates, so that the gap between the two adjacent mounting plates is formed into a wind tunnel structure.

[0004] In another aspect of the present invention, a wind energy conversion device is provided, comprising the wind collection device as described above and a generator transmission-connected to the wind collection device, wherein the wind collection device can provide a rotational driving force to the generator.

[0005] Preferably, it also includes a support column for supporting the wind collection device.

[0006] Preferably, a plurality of auxiliary support columns are arranged around the support column and along the circumference of the support column, and the auxiliary support columns are used to support the wind collection device.

[0007] Compared with the wind collecting device of the existing vertical axis wind turbine, the gap between two adjacent mounting plates of the wind collecting device of the present invention is formed into a wind tunnel structure. When the wind passes through the gap between two adjacent mounting plates, a wind jet will be formed between the two mounting plates, thereby generating a stronger driving force for the wind wheel. Therefore, under the same wind volume conditions and the same wind wheel structure conditions, the rotation speed of the wind wheel of the wind collecting device of the present invention is greater than the rotation speed of the wind wheel of the existing wind collecting device. The wind energy conversion device of the present invention adopts the wind collecting device as described above, and the generator of the wind energy conversion device of the present invention obtains the rotational driving force from the above-mentioned wind collecting device. Therefore, compared with the existing vertical axis wind turbine, the wind energy conversion device of the present invention has a higher power generation efficiency.

[0008] Furthermore, the wind collection device of the present invention can be stacked, so that multiple wind collection devices and generator sets connected to the wind collection devices can be arranged within a unit area, thereby increasing the power generation per unit area. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1a to Figure 1d is a schematic structural diagram of a wind collection device according to an embodiment of the present invention;

[0010] Figure 2a to Figure 2b is a schematic structural diagram of a wind collection device according to another embodiment of the present invention;

[0011] Figure 3 is a schematic structural diagram of a wind energy conversion device according to an embodiment of the present invention;

[0012] Figure 4a and Figure 4b 2 is a diagram showing an application example of a wind energy conversion device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and advantages of the present invention clearer, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Examples of these preferred embodiments are illustrated in the accompanying drawings. The embodiments of the present invention shown in the accompanying drawings and described according to the accompanying drawings are merely exemplary, and the present invention is not limited to these embodiments.

[0014] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0015] In view of the defects of the prior art mentioned in the background technology section, the present invention provides a wind collection device with a wind tunnel structure. The wind collection device can form a wind jet inside the structure, thereby generating a stronger driving force for the wind wheel. The following is a specific implementation method.

[0016] Example 1

[0017] like Figure 1a As shown, the wind collection device provided in this embodiment includes two mounting plates 1 stacked and spaced apart. The surfaces of the two adjacent mounting plates 1 facing each other respectively include a mounting area 1a for mounting a wind wheel and a gradient surface area 1b surrounding the mounting area 1a. The thickness of the mounting plate 1 corresponding to the gradient surface area 1b is gradually reduced when approaching the edge of the mounting plate 1, thereby forming a slope between the edge of the mounting plate 1 and the mounting area 1a. A wind wheel 2 for collecting wind is arranged between the mounting areas 1a of the two adjacent mounting plates 1 that are close to each other. When the wind wheel 2 is installed between the two mounting areas 1a, the two ends of the rotating shaft of the wind wheel 2 are respectively connected to the surfaces of the two mounting areas 1a.

[0018] like Figure 1b As shown ( Figure 1b for Figure 1a ), in the wind collecting device of this embodiment, the gradient surface areas 1b close to each other of the two adjacent mounting plates 1 together form a funnel shape, so that the airflow passing through the two adjacent mounting plates 1 can be compressed, so that the gap between the two adjacent mounting plates 1 is formed into a wind tunnel structure. When the wind passes through the gap between the two adjacent mounting plates, a wind jet will be formed between the two mounting plates, thereby generating a stronger driving force for the wind wheel. Therefore, under the same wind volume conditions and the same wind wheel structure conditions, the rotation speed of the wind wheel of the wind collecting device of this embodiment is greater than the rotation speed of the wind wheel of the conventional wind collecting device.

[0019] Preferably, if Figure 1a As shown, in order to facilitate the transportation of the wind collection device of this embodiment, a plurality of screw rings 3 are provided on the surface of the mounting plate 1 on the side facing away from the wind wheel 2 for hoisting it to other equipment, or it can be hoisted to another wind collection device of this embodiment to form a stacked wind collection structure.

[0020] Alternatively, if Figure 1c and 1d As shown, the mounting plate 1 of this embodiment can be selected into different shapes according to actual needs.

[0021] Optionally, the surface of the installation area 1a and the surface of the gradual surface area 1b of this embodiment are plane or curved. When the surface of the installation area 1a and the surface of the gradual surface area 1b are designed as curved surfaces, the curvature of the surface of the installation area 1a and the curvature of the surface of the gradual surface area 1b can be the same or different values ​​according to actual needs.

[0022] Example 2

[0023] The wind collecting device of this embodiment is a further improvement of the wind collecting device of embodiment 1. Figure 2a As shown, the wind collection device of this embodiment is different from that of Example 1 in that it includes a plurality of mounting plates 1 stacked and spaced apart. The surfaces of the two adjacent mounting plates 1 facing each other include a mounting area 1a for mounting a wind wheel and a gradient surface area 1b surrounding the mounting area 1a. The thickness of the mounting plate 1 corresponding to the gradient surface area 1b decreases as it approaches the edge of the mounting plate 1, thereby forming an inclined surface between the edge of the mounting plate 1 and the mounting area 1a. A wind wheel 2 for collecting wind is arranged between the mounting areas 1a of the two adjacent mounting plates 1 that are close to each other.

[0024] like Figure 2b As shown ( Figure 2b for Figure 2a ), in the wind collecting device of this embodiment, the gradient surface areas 1b close to each other of the two adjacent mounting plates 1 together form a funnel shape, so that the airflow passing through the two adjacent mounting plates 1 can be compressed, so that the gap between the two adjacent mounting plates 1 is formed into a wind tunnel structure. When the wind passes through the gap between the two adjacent mounting plates, a wind jet will be formed between the two mounting plates, thereby generating a stronger driving force for the wind wheel. Therefore, under the same wind volume conditions and the same wind wheel structure conditions, the rotation speed of the wind wheel of the wind collecting device of this embodiment is greater than the rotation speed of the wind wheel of the conventional wind collecting device.

[0025] Example 3

[0026] This embodiment provides a wind energy conversion device, comprising the wind collection device A described in Embodiment 1 or Embodiment 2 and a generator (not shown in the figure) drivingly connected to the wind collection device A. The wind collection device A can provide a rotational driving force to the generator, thereby converting wind energy into electrical energy.

[0027] The wind energy conversion device of this embodiment uses the wind collection device described in Example 1 or Example 2 to drive the generator. Since the rotation speed of the wind wheel of the wind collection device of Example 1 or Example 2 is greater than the rotation speed of the wind wheel of the conventional wind collection device, the wind energy conversion device of this embodiment has a higher power generation efficiency compared with the conventional vertical axis wind turbine.

[0028] like Figure 3 As shown (the wind collection device in the figure is a multi-layer wind collection device), the wind energy conversion device of this embodiment also includes a support column B for supporting the wind collection device A. A ladder is arranged in the support column to facilitate the staff to reach the wind collection device to repair the wind wheel.

[0029] Preferably, in this embodiment, a plurality of auxiliary support columns B1 are arranged around the support column B along the circumference of the support column B, and the auxiliary support columns B1 are also used to support the wind collection device A to improve the stability of the overall wind energy conversion equipment.

[0030] As another application example, Figure 4a and Figure 4b As shown, the wind energy conversion device of this embodiment can be installed on the roof of a building C. A photovoltaic power generation device S is installed on the side of the wind collection device A facing away from the roof. Specifically, a plurality of solar cells are arranged in an array on the side of the mounting plate at the top of the wind collection device A facing away from the wind wheel, thereby increasing the output of clean energy in a limited space (such as the roof area).

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind energy conversion device, comprising a wind collection device and a generator connected to the wind collection device, wherein the wind collection device can provide a rotational driving force to the generator, characterized in that: The wind collecting device comprises at least two stacked and spaced mounting plates, the mounting plates are triangular or pentagonal, and surfaces of two adjacent mounting plates facing each other on one side respectively comprise a mounting area for mounting a wind wheel and a gradient surface area surrounding and adjacent to the edge of the mounting area, the thickness of the mounting plate corresponding to the gradient surface area gradually decreases from the edge of the mounting area to the edge of the mounting plate, a plurality of wind wheels for collecting wind are arranged between the mounting areas of two adjacent mounting plates close to each other, the gradient surface areas of two adjacent mounting plates close to each other compress the airflow passing through the two adjacent mounting plates, so that the gap between the two adjacent mounting plates is formed into a wind tunnel structure, and the plurality of wind wheels are spaced apart on the edge of the mounting area; The wind energy conversion device further comprises a support column for supporting the wind collection device, wherein the support column penetrates the central area of ​​each of the mounting plates so that the plurality of wind wheels surround the support column; A plurality of auxiliary support columns are arranged around the support column and along the circumference of the support column, and the auxiliary support columns are used to support the wind collection device.

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