Vertical wind power generation equipment

Abstract

The invention relates to vertical wind power generation equipment, and belongs to the field of wind power generation equipment. When air flow formed by air in the atmosphere blows, the air flow is guided into the air inducing pipe by the fins, the blades are driven to rotate to drive the generator to generate electricity, and finally the electricity flows out from the air releasing opening. Meanwhile, the air flow also blows the skirt hemline to swing, and the internal and external pressure difference formed by swinging of the skirt hemline along with the wind enables the low-pressure air flow to be discharged more quickly and smoothly. According to the vertical wind power generation equipment, the acceleration of the fins is formed at the top of the air inducing pipe, and the skirt hemline at the bottom of the air releasing opening guides the air flow to be discharged, so that the wind energy utilization rate of the equipment is greatly improved, the equipment can reliably operate in a low wind field, and the vertical wind power generation equipment can be widely suitable for operation in wind fields of about three levels.

Description

Technical Field

[0001] The present application belongs to the technical field of wind power equipment, and in particular, relates to a vertical wind power generation equipment. Background Art

[0002] With the improvement of people's living standards and the rapid development of science and technology, the demand for electricity is increasing. Clean energy is gradually entering the market. Currently, the clean energy running on the market is mainly represented by solar photovoltaic power generation and wind power generation.

[0003] Solar photovoltaic power generation occupies a large area and is inefficient due to factors such as weather changes and static electricity adsorption of dust.

[0004] At present, most wind power generators in operation on the market are large three-blade generators, which have high requirements for wind speed and direction. In order to make full use of wind energy, the blades must be longer and larger, which poses considerable challenges to transportation, installation and maintenance. Wind power generation is the most effective clean energy. How to improve the utilization rate of wind energy, how to obtain high power generation in low wind conditions, how to reduce the volume and floor space, etc., are the problems that wind power generation equipment urgently needs to solve.

[0005] Chinese patent document CN113236480A discloses a wind power generation device that uses an induced draft duct for boosting and compression functions. A fin layer is arranged on the induced draft duct to introduce airflow (wind) into the induced draft duct. The airflow in the induced draft duct drives the blades and generator at the bottom to work, converting wind energy into electrical energy. However, the bottom of the power generation device is prone to poor exhaust, resulting in low power generation efficiency and inability to further utilize low wind speed wind energy of about level three. Summary of the invention

[0006] The technical problem to be solved by the present invention is: to solve the deficiencies in the prior art, thereby providing a vertical wind power generation device with high power generation efficiency and capable of utilizing low wind speed wind energy.

[0007] The technical solution adopted by the present invention to solve its technical problem is:

[0008] A vertical wind power generation device, comprising:

[0009] An air duct, the top of which is closed and a plurality of air inlets are arranged on the side wall;

[0010] A fin, wherein the fin is a curved surface, the air inlet is arranged between two adjacent fins distributed along the height direction, and the height of the fin at one end away from the fin is higher than the height at one end close to the air inlet;

[0011] The blade is arranged inside the induced draft duct;

[0012] An air release port is located at the lower end of the air duct, and a cross section of the air release port gradually increases from an end close to the air duct to an end away from the air duct;

[0013] A generator connected to the blades and capable of generating electricity when the blades rotate;

[0014] The skirt is installed at the bottom of the air outlet and can swing under the action of airflow.

[0015] Preferably, in the vertical wind power generation device of the present invention, the fins are evenly distributed on the side wall along the axial direction and the circumferential direction of the air duct.

[0016] Preferably, in the vertical wind power generation equipment of the present invention, a damper is installed at the air inlet.

[0017] Preferably, in the vertical wind power generation device of the present invention, the curve formed by the inner wall of the longitudinal section of the fin along the length direction is an upward convex curve.

[0018] Preferably, in the vertical wind power generation device of the present invention, the length of the longitudinal section of the fin along the width direction gradually increases from an end close to the air duct toward an end far from the air duct.

[0019] Preferably, in the vertical wind power generation equipment of the present invention, the skirt is made of a flexible material and is arranged around the bottom of the air release port.

[0020] Preferably, in the vertical wind power generation device of the present invention, the skirt is a cloth material with pleats formed at regular intervals, and support members are embedded in the cloth material at regular intervals.

[0021] Preferably, in the vertical wind power generation equipment of the present invention, the support member is a metal bar.

[0022] Preferably, in the vertical wind power generation equipment of the present invention, the generator is arranged in the wind release port.

[0023] Preferably, the vertical wind power generation equipment of the present invention further comprises a column, wherein the column is used to support and install the air release port and the air duct.

[0024] The beneficial effects of the present invention are:

[0025] In the vertical wind power generation equipment of the present application, when the airflow formed by the wind in the atmosphere blows through, it is guided by the fins into the duct, driving the blades to rotate and drive the generator to generate electricity, and finally flows out from the air release port. At the same time, the airflow will also blow the skirt to swing, and the internal and external pressure difference formed by the swing of the skirt with the wind will make the discharge of low-pressure airflow faster and smoother. By forming the acceleration of the fins at the top of the duct, and guiding the airflow to be discharged by the skirt at the bottom of the air release port, the wind energy utilization rate of the equipment of this embodiment is greatly improved, and it can also operate reliably in low wind fields. The vertical wind power generation equipment of the present application can be widely used in wind fields of about level three. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Figure 1 is a three-dimensional diagram of a vertical wind power generation device in an embodiment of the present application;

[0028] Figure 2 is a cross-sectional view of a vertical wind power generation device according to an embodiment of the present application (wherein the damper is opened);

[0029] Figure 3 is a schematic structural diagram of the fins and air inlet of an embodiment of the present application;

[0030] Figure 4 is a schematic diagram of a skirt being blown by wind in an embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of the airflow in the vertical wind power generation equipment of the embodiment of the present application.

[0032] The reference numerals in the figure are:

[0033] 1. Air duct;

[0034] 11 Air inlet;

[0035] 12. Air door;

[0036] 13 Cover plate;

[0037] 14 wind chamber;

[0038] 2 fins;

[0039] 3 blades;

[0040] 31 turbine shaft;

[0041] 32 Coupling;

[0042] 4. Air release vent;

[0043] 5. Generator;

[0044] 6 Hem. DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0048] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0049] Example

[0050] This embodiment provides a vertical wind power generation device, such as Figure 1 and 2 As shown, including:

[0051] The induced air duct 1 is closed at the top and has a plurality of air inlets 11 on the side wall. The induced air duct 1 is in the shape of a circular tube as a whole and is closed at the top by a cover plate 13;

[0052] The fin 2 is a curved surface, the air inlet 11 is arranged between two adjacent fins 2 distributed along the height direction, and the height of the end of the fin 2 away from the fin 2 is higher than the height of the end close to the air inlet 11;

[0053] The blade 3 is arranged inside the air duct 1. Specifically, the air duct 1 has an air chamber 14 at the bottom, and the blade 3 is arranged in the air chamber 14. The air inlet 11 is not arranged on the side wall of the air chamber 14.

[0054] The air outlet 4 is located at the lower end of the air duct 1, and the cross section of the air outlet 4 gradually increases from the end close to the air duct 1 to the end far away from the air duct 1;

[0055] A generator 5 connected to the blade 3 and capable of generating electricity when the blade 3 rotates;

[0056] The skirt 6 is installed at the bottom of the air outlet 4 and can swing under the action of airflow.

[0057] The blades 3 (preferably turbine blades) are connected to the shaft of the generator 5 via a turbine shaft 31. Of course, a coupling 32 is usually provided between the shafts.

[0058] The vertical wind power generation equipment of this embodiment, such as Figure 3-5 As shown, the flow process of the airflow in the device is shown. The horizontal airflow F (wind) enters from the inlet of the fin 2, and the airflow f flowing obliquely downward is formed in the fin 2. The airflow f is accelerated in the fin 2 and enters the air duct 1. The multiple air inlets 11 on the side facing the airflow F will collect the airflow into the air duct 1, and a downward pressurized airflow f1 is formed in the upper closed air duct 1, and a compressed airflow f2 is obtained in the wind chamber 14. When the compressed airflow f2 passes through the blade 3, the blade 3 is driven to run quickly. The compressed airflow f2 passes through the blade 3 and reaches the air outlet 4 to form a low-pressure airflow f3 inside the air outlet 4. At the same time, the low-pressure airflow F1 in the horizontal airflow (that is, the airflow blowing horizontally toward the air outlet 4) blows toward the skirt 6. Under the action of the skirt 6, F1 is blocked from entering the air outlet 4, which can prevent interference with the discharge of the low-pressure airflow f3 at the air outlet 4. The internal and external pressure difference formed by the swing of the skirt 6 with the wind makes the discharge of the low-pressure airflow f3 faster and smoother. By forming the acceleration of the fins 2 at the top of the air duct 1, and guiding the airflow discharge through the skirt 6 at the bottom of the air release port 4, the wind energy utilization rate of the equipment of this embodiment is greatly improved, and it can operate reliably even in low wind fields. The equipment of this embodiment can be widely used in wind fields of about level 3.

[0059] Furthermore, the fins 2 are evenly distributed on the side wall along the axial direction and circumferential direction of the air duct 1 to absorb airflow in all directions and adapt to different wind directions. The edges of the fins 2 are rounded to reduce wind resistance.

[0060] Furthermore, a damper 12 is installed at the air inlet 11 , and the damper 12 allows air to enter the air duct 1 and prevents the gas in the air duct 1 from being discharged through the damper 12 .

[0061] Furthermore, the curve formed by the inner wall of the longitudinal section of the fin 2 is an upward convex curve. Figure 4 The schematic diagram of the fin 2 given in the figure corresponds to the inner wall of the longitudinal section of the fin 2. If the horizontal axis is the X-axis and the vertical axis is the Y-axis, the curve formed by the inner wall of the longitudinal section of the fin 2 is an upward concave curve, that is, the tangent line of any point on the curve is above the curve. The length of the longitudinal section of the fin 2 along the width direction gradually increases from the end close to the air duct 1 to the end away from the air duct 1. In other words, the closer the fin 2 is to the outside, the wider it is. In the width direction, the fin 2 is an arch with bottoms on both sides and a high middle. Setting the fin 2 into the above shape can better guide the airflow into the air inlet 11.

[0062] Furthermore, the skirt 6 is made of flexible material installed around the bottom of the air outlet 4, such as nylon cloth or other weather-resistant cloth materials. Specifically, the skirt 6 is a cloth material with folds formed at intervals (that is, the cloth material partially overlaps at intervals), and supports (such as stainless steel metal strips, which are avoided from being arranged in the folded area) are embedded in the cloth material at intervals, and the supports can keep the skirt 6 vertically downward, and can prevent the skirt 6 from being blown up directly when the wind is too strong.

[0063] Furthermore, the generator 5 is arranged in the air outlet 4. The airflow can blow through the generator 5, which can protect the generator 5 from being exposed to the sun and rain, and can also cool the generator.

[0064] Furthermore, it also includes a column 7, and the column 7 is used to support the installation of the air release port 4 and the air duct 1. By setting the column 7, the air release port 4 and the air duct 1 can be installed to a desired height.

[0065] The fin 2 is also supported as a whole by a supporting frame.

[0066] Based on the above ideal embodiments of this application, the relevant staff can make various changes and modifications without departing from the technical concept of this application through the above description. The technical scope of this application is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A vertical wind power generation device, characterized in that: include: An air duct (1), the top of the air duct (1) is closed and a plurality of air inlets (11) are arranged on the side wall; A fin (2), wherein the fin (2) is a curved surface, the air inlet (11) is arranged between two adjacent fins (2) distributed along the height direction, and the height of the fin (2) at one end away from the fin (2) is higher than the height of the end close to the air inlet (11); The blade (3) is arranged inside the air duct (1); An air release port (4) is located at the lower end of the air duct (1), and a cross section of the air release port (4) gradually increases from an end close to the air duct (1) to an end away from the air duct (1); A generator (5) connected to the blade (3) and capable of generating electricity when the blade (3) rotates; The skirt (6) is installed at the bottom of the air outlet (4) and can swing under the action of airflow.

2. The vertical wind power generation equipment according to claim 1, characterized in that: The fins (2) are evenly distributed on the side wall along the axial direction and circumferential direction of the air duct (1).

3. The vertical wind power generation equipment according to claim 1, characterized in that: A damper (12) is installed at the air inlet (11).

4. The vertical wind power generation equipment according to any one of claims 1 to 3, characterized in that: The curve formed by the inner wall of the longitudinal section of the fin (2) along the length direction is an upward convex curve.

5. The vertical wind power generation equipment according to claim 4, characterized in that: The length of the longitudinal section of the fin (2) along the width direction gradually increases from an end close to the air duct (1) toward an end away from the air duct (1).

6. The vertical wind power generation equipment according to any one of claims 1 to 3, characterized in that: The skirt (6) is made of a flexible material and is arranged along the bottom of the air release port (4).

7. The vertical wind power generation equipment according to claim 6, characterized in that: The skirt (6) is a cloth material with pleats formed at intervals, and support members are embedded in the cloth material at intervals.

8. The vertical wind power generation equipment according to claim 7, characterized in that: The supporting member is a metal bar.

9. The vertical wind power generation equipment according to any one of claims 1 to 3, characterized in that: The generator (5) is arranged in the air release port (4).

10. The vertical wind power generation equipment according to any one of claims 1 to 3, characterized in that: It also comprises a column (7), wherein the column (7) is used to support and install the air release port (4) and the air induction pipe (1).

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