Fan blade for secondary utilization of wind energy
By setting up airflow channels in the wind blades of the wind turbine, the wind energy forms a forward spiral airflow, which solves the problem that wind energy can only be used at one time, improves the wind energy utilization rate, and is suitable for a variety of wind conditions.
Patent Information
- Application Number
- CN202422319172.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Due to the poor design of wind blades in existing wind turbines, wind energy can only be used at one time, and the wind energy utilization efficiency is low.
A wind blade for secondary utilization of wind energy is designed, including side plates, blades and airflow baffles. An airflow channel is formed between the blades and airflow baffles, so that the wind energy forms a forward spiral airflow in the airflow channel, and generates power to act directly on the air blades.
By reusing wind energy, the wind energy utilization rate is improved, and there is no need to wait for greater wind force to generate electricity. During breeze, the wind blades can also rotate to generate electricity, reducing the environmental requirements of the wind blades and are suitable for more scenarios.
Smart Images
Figure CN222976950U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of wind power generation, and particularly relates to a wind blade for secondary utilization of wind energy. Background Art
[0002] Traditional energy has been largely consumed and has caused environmental pollution. The current energy shortage and environmental pollution problems have attracted wide attention and emphasis. People have gradually sought new energy to replace traditional energy. Among them, wind energy is an energy source that people have widely favored and utilized. However, the current wind power generation efficiency is low, resulting in a relatively low proportion of wind energy in the energy structure. The main reason for the low efficiency of wind turbines is the poor design of the generator wind wheel structure and blade shape. In existing wind power generation, most of the design of wind blades only changes the shape, structure, and layout of the wind blades to obtain the pressure difference generated when the wind passes through the wind blades as the driving force. Taking the most common propeller wind blade as an example, only the shape of the wind blade can be designed to obtain a more ideal pressure difference and better results. However, the propeller wind blade can only utilize wind energy once and cannot recover wind energy, resulting in low utilization efficiency of wind energy. Summary of the Invention
[0003] This application provides a wind blade for secondary utilization of wind energy, which solves the problem that the wind blade can only utilize wind energy once and has low wind energy utilization efficiency.
[0004] An embodiment of this application provides a wind blade for secondary utilization of wind energy, including side plates. Blades are provided on the side plates, and air flow baffles are provided on the side plates. An air flow channel is formed between the blades and the air flow baffles.
[0005] In one embodiment,
[0006] The side plates are in the shape of an arc-shaped triangle.
[0007] In one embodiment,
[0008] The number of the side plates is two, and the blades are arranged between the two side plates.
[0009] In one embodiment,
[0010] Mounting holes are provided on the side plates.
[0011] In one embodiment,
[0012] The number of the blades is at least 1, and preferably, the number of the blades is 3.
[0013] In one embodiment,
[0014] The blades include windward blades and guide blades.
[0015] In one embodiment,
[0016] The windward blade is arc-shaped and the guiding blade is linear.
[0017] In one embodiment,
[0018] The number of the air flow baffles is at least one, preferably three; a gap is left between the guiding blade and the air flow baffle to form the air flow channel.
[0019] This application provides a wind blade for secondary utilization of wind energy. It can not only obtain the pressure difference generated when the wind passes through the wind blade as power through the designed structure, but also set an air flow channel in the wind blade, so that the wind entering the wind blade can form a forward spiral air flow in the air flow channel, and the power generated by the air flow directly acts on the wind blade to perform secondary utilization of the wind, improve the wind energy utilization rate, and does not need to generate electricity only when there is a strong wind. It can also make the wind blade rotate to generate electricity even in gentle winds; the windward blades are set as arc-shaped and multiple pieces are provided, which can receive winds from multiple angles, reduce the requirements of the wind blade on the environment, make it applicable to more scenarios, and the array installation can utilize wind energy with the highest efficiency. Description of the Drawings
[0020] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following-described drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0021] Figure 1 It is a side view of the wind blade;
[0022] Figure 2 It is along Figure 1 The sectional view taken along line AA in
[0023] Figure 3 It is a demonstration diagram of the air flow path;
[0024] Figure 4 It is a structure diagram of the blade;
[0025] Figure 5 It is a top view of the wind blade.
[0026] Explanation of the symbols and markings in the drawings:
[0027] 1. Side plate; 11. Mounting hole; 2. Blade; 21. Windward blade; 22. Guiding blade; 3. Air flow baffle; 4. Air flow channel. Detailed Embodiments
[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer and more understandable, this application is further described in detail. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.
[0029] In one embodiment, a wind blade for secondary utilization of wind energy is as Figure 1 shown, including a side plate 1, on which a blade 2 is provided, as Figure 2 shown, an air flow baffle 3 is provided on the side plate 1, as Figure 3 shown, an air flow channel 4 is formed between the blade 2 and the air flow baffle 1; the number of side plates 1 is two, and the blade 2 is arranged between the two side plates 2; an installation hole 11 is provided on the side plate 1; as Figure 4 shown, the blade 2 includes a windward blade 21 and a guiding blade 22, the windward blade 21 is arc-shaped, and the guiding blade 22 is linear.
[0030] Specifically, as Figure 5 shown, the side plate 1 is in the shape of a triangle with an arc, and the arc fits the arc of the windward blade 21. The side plate 1 is used to fix the blade 2 and the air flow baffle 3; the installation hole 11 is located in the middle of the side plate 1 and is used to install the wind blade on the main shaft of the generator; the number of blades 2 is at least 1, and in this embodiment, it is 3. The windward blade 21 and the guiding blade 22 are fixedly connected as a whole and are both installed on the side plate 1; the number of air flow baffles 3 is at least 1, and in this embodiment, it is 3. The three air flow baffles 3 enclose a triangle and are fixedly installed in the middle of the side plate 1. The installation hole 11 is located inside the triangle enclosed by the air flow baffles 3; the three guiding blades 22 and the three air flow baffles 3 are installed on the side plate 1 in parallel, and there is a gap between the guiding blade 22 and the air flow baffle 3, and the three blades 2 do not contact each other, thereby forming an air flow channel 4 on the side plate 1. As Figure 3 shown, the air flow enters the next blade 2 from the arc-shaped windward blade 21 through the air flow channel 4, and then enters the third blade 2 through the air flow channel 4, forming a spiral air flow to provide secondary power for the rotation of the blade 2.
[0031] The wind blades can be freely combined and installed on the main shaft of the generator, and the number of wind blades can be increased or decreased according to the actual situation.
[0032] The present application provides a wind blade for secondary utilization of wind energy, which includes side plates. Blades are provided on the side plates, and air flow baffles are provided on the side plates. An air flow channel is formed between the blades and the air flow baffles. The wind blade provided by the present application can not only obtain the pressure difference generated when the wind passes through the wind blade as power through the designed structure, but also form a forward spiral air flow in the air flow channel by arranging the air flow channel in the wind blade. The power generated by the air flow directly acts on the wind blade to perform secondary utilization of the wind, improve the wind energy utilization rate, and does not require generating electricity only when there is strong wind. The wind blade can also rotate to generate electricity even when there is gentle wind. The windward blades are set to be arc-shaped and multiple blades are provided, which can receive wind forces from multiple angles, reduce the requirements of the wind blade on the environment, and make it applicable to more scenarios. The array installation can utilize wind energy with the highest efficiency.
[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specifically defined.
[0034] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. A wind blade for secondary utilization of wind energy, comprising a side plate, on which blades are arranged, characterized in that: The side plate is provided with an air flow baffle, and an air flow channel is formed between the blades and the air flow baffle; The blades include windward blades and guide blades; and the side plates are in the shape of a triangle with an arc line.
2. The wind blade for secondary utilization of wind energy according to claim 1, characterized in that: The number of the side plates is two, and the blade is arranged between the two side plates.
3. The wind blade for secondary utilization of wind energy according to claim 1, characterized in that: The side plate is provided with a mounting hole.
4. The wind blade for secondary utilization of wind energy according to claim 1, characterized in that: The number of the blades is at least one.
5. The wind blade for secondary utilization of wind energy according to claim 1, characterized in that: The windward blade is arc-shaped, and the guide blade is straight-line-shaped.
6. The wind blade for secondary utilization of wind energy according to claim 1, characterized in that: The number of the airflow baffle is at least one, and a gap is left between the guide blade and the airflow baffle to form the airflow channel.