Air inducing device for breeze power generation

Abstract

The air inducing device comprises an air guiding barrel and an axial flow type wind driven generator in the air guiding barrel, the air guiding barrel comprises an air inlet section and an air outlet section, the large opening end of the air inlet section faces downwards, the large opening end of the air outlet section faces upwards, and a neck part is formed at the joint of the small opening end of the air inlet section and the small opening end of the air outlet section; a power generation impeller of the axial-flow type wind driven generator corresponds to the neck portion, and the cross section area of the large opening end of the air inlet section is larger than that of the large opening end of the air outlet section. The axial-flow type wind driven generator is reasonable in structural design, even in the gentle breeze environment, when natural wind sequentially passes through the wind inlet section and the wind outlet section of the wind guide barrel, the Venturi effect can be generated, the flow speed of airflow can be increased at the wind outlet section, the driving acting force on the power generation impeller of the axial-flow type wind driven generator is improved, and the power generation efficiency is improved. And the power generation efficiency of the power generation equipment in a breeze environment can be improved.

Description

Technical Field

[0001] This invention belongs to the field of wind power generation equipment technology, and in particular relates to a wind-generating device for micro-wind power generation. Background Technology

[0002] Wind energy is a clean and pollution-free renewable energy source. Wind power generation refers to converting the kinetic energy of wind into electrical energy, and it has been widely used. According to existing data, the starting wind speed of common wind power generation devices is generally above 2.5 m / s, and the rated power generation wind speed is above 15 m / s. However, since wind is a very unstable natural resource, wind power generation depends on the strength and stability of the wind. The unpredictable changes in wind speed cause large fluctuations in the output power of wind turbines. Low-speed natural winds cannot start existing wind power generation devices, thus directly affecting power generation efficiency. Especially in light wind environments, wind turbines may stop working for a long time, resulting in reduced power generation efficiency. Therefore, it is necessary to improve existing wind power generation equipment to adapt to light wind environments and improve power generation efficiency. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the deficiencies in the prior art and proposes a wind-generating device for micro-wind power generation.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] A wind-generating device for micro-wind power generation includes a wind duct and an axial-flow wind turbine inside the wind duct. The wind duct includes an inlet section and an outlet section. The large opening end of the inlet section faces downward and the large opening end of the outlet section faces upward. The small opening end of the inlet section and the small opening end of the outlet section form a neck. The power generation impeller of the axial-flow wind turbine is arranged corresponding to the neck. The cross-sectional area of ​​the large opening end of the inlet section is larger than the cross-sectional area of ​​the large opening end of the outlet section.

[0006] Furthermore, the large opening end of the air inlet section is provided with an inclined outer eave, and the connection between the outer eave and the air inlet section is smoothly transitioned.

[0007] Furthermore, one side wall of the large opening end of the air outlet section is provided with an inclined guide surface, the inclination angle of which is approximately equal to the inclination angle of the spoiler.

[0008] Furthermore, a cylindrical section with a straight structure is provided between the small opening end of the air inlet section and the large opening end of the air inlet section.

[0009] Furthermore, the air inlet section and the air outlet section are integrally molded structures.

[0010] Furthermore, the height of the air inlet section is greater than the height of the air outlet section.

[0011] Furthermore, the connection between the air inlet section and the air outlet section is smoothly transitioned.

[0012] Compared with existing technologies, the present invention has the following advantages:

[0013] The invention features a reasonable structural design. Even in a light wind environment, when natural wind passes through the air inlet and outlet sections of the wind duct in sequence, a "Venturi effect" is generated, and the airflow velocity increases at the outlet section. This increases the driving force on the turbine blades of the axial-flow wind turbine, thereby improving the power generation efficiency of the power generation equipment in a light wind environment. Attached Figure Description

[0014] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0015] Figure 1 A schematic diagram of the structure created by this invention;

[0016] Figure 2 A schematic diagram of the external shape of the present invention is provided;

[0017] Figure 3 This is a schematic diagram of the structure of the air guide duct in this invention;

[0018] Figure 4 A schematic diagram of the air outlet section of the air duct in this invention;

[0019] Figure 5 This is a schematic diagram of the air inlet section of the air duct in this invention. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] A wind-generating device for micro-wind power generation, such as Figures 1 to 5 As shown, the device includes a wind duct 1 and an axial-flow wind turbine 2 inside the wind duct. The wind duct includes an inlet section 3 and an outlet section 4. The large opening end 10 of the inlet section faces downward, and the large opening end 11 of the outlet section faces upward. A neck 5 is formed at the junction of the small opening end 12 of the inlet section and the small opening end 13 of the outlet section. The generator impeller 6 of the axial-flow wind turbine is positioned corresponding to this neck. The cross-sectional area of ​​the large opening end of the inlet section is larger than that of the large opening end of the outlet section. A cylindrical columnar section 14 with a straight structure is provided between the small opening end 9 and the large opening end of the inlet section. The inner side of this columnar section serves as the housing space for the axial-flow wind turbine. As an example, the inlet section and the outlet section are integrally formed structures.

[0025] The height of the air inlet section is greater than the height of the air outlet section. The connection between the air inlet section and the air outlet section is smoothly transitioned. In addition, the cross-sectional area of ​​the large opening end of the air inlet section is larger than that of the large opening end of the air outlet section. Therefore, when the airflow blown through the air guide duct enters the air outlet section, it will generate a "Venturi effect". The airflow will be quickly discharged from the large opening end of the air outlet section and will have a "suction" effect on the natural wind in the air inlet section. This will make the axial flow generator in the air guide duct more powerfully driven and improve the power generation efficiency.

[0026] The large opening end of the air inlet section is provided with an inclined outer eave 7, and the connection between the outer eave and the air inlet section is smoothly transitioned. Natural wind is gathered by the outer eave, thereby increasing the air intake volume. One side wall of the large opening end of the air outlet section (the rear side of the large opening end of the air outlet section, that is, the side of the large opening end of the air outlet section away from the spoiler) is provided with an inclined guide surface 8. The inclination angle of the guide surface is approximately equal to the inclination angle of the spoiler, which can effectively guide the airflow to be discharged quickly and smoothly, which is conducive to the generation of the "Venturi effect" during the airflow discharge from the air guide duct.

[0027] The invention features a reasonable structural design. Even in a light wind environment, when natural wind passes through the air inlet and outlet sections of the wind duct in sequence, a "Venturi effect" is generated, and the airflow velocity increases at the outlet section. This increases the driving force on the turbine blades of the axial-flow wind turbine, thereby improving the power generation efficiency of the power generation equipment in a light wind environment.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wind-induced power generation device, characterized in that: The wind turbine includes a wind duct and an axial-flow wind turbine inside the wind duct. The wind duct includes an inlet section and an outlet section. The large opening end of the inlet section faces downward and the large opening end of the outlet section faces upward. The small opening end of the inlet section and the small opening end of the outlet section form a neck. The generator blade of the axial-flow wind turbine is set corresponding to the neck. The cross-sectional area of ​​the large opening end of the inlet section is larger than the cross-sectional area of ​​the large opening end of the outlet section.

2. The wind-induced power generation device according to claim 1, characterized in that: The large opening end of the air inlet section is provided with an inclined outer eave, and the connection between the outer eave and the air inlet section is smoothly transitioned.

3. The wind-induced power generation device according to claim 1, characterized in that: A cylindrical section with a straight structure is provided between the small opening end of the air inlet section and the large opening end of the air inlet section.

4. The wind-induced power generation device according to claim 1, characterized in that: The air inlet section and the air outlet section are integrally molded structures.

5. A wind-induced power generation device according to claim 1, characterized in that: The height of the air inlet section is greater than the height of the air outlet section.

6. The wind-induced power generation device according to claim 1, characterized in that: The connection between the air inlet section and the air outlet section is smooth.

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