Conical breeze acceleration power generation device

Abstract

The utility model discloses a conical breeze acceleration power generation device which comprises a conical wind catching acceleration device, a wind wheel, a wind wheel support, a power generator, a tail vane, a bent pipe, a bearing, a base and a support. The conical wind catching acceleration device comprises a conical wind catching device with a certain conical angle range and a conical inlet and outlet diameter ratio at the front end and a conical diffuser at the rear end. The wind wheel support is fixed at the tail end of the conical wind catching device, and a shaft of the wind wheel penetrates through the wind wheel support to be connected with the generator to drive the generator to generate electricity. And a wind-facing tail vane is mounted at the rear end of the bent pipe in the horizontal direction. The device can enlarge the wind catching area and accelerate the wind speed, realizes low-cost, safe and efficient wind power generation, is particularly suitable for regions with poor wind resources, and can also resist the influence of extremely severe weather.

Description

Technical Field

[0001] The utility model relates to the field of wind power generation technology utilization, in particular to a micro-wind acceleration power generation device utilizing the Venturi effect. Background Art

[0002] Energy is the foundation of modern industrial civilization society. However, the traditional fossil energy accounts for a large proportion of the usage, which will bring environmental pollution and global climate change problems, and does not conform to the sustainable development direction of human society. Therefore, China is vigorously promoting the green and low-carbon transformation of energy, emphasizing increasing the proportion of renewable energy to promote the greening of the energy system. Among renewable energies, the scale of hydropower development in China has basically reached its peak, and wind power and solar power generation will be the main forces in the future. Among them, wind power is divided into onshore wind power and offshore wind power. At present, the onshore installed capacity in China accounts for 90% of the total installed capacity, and the offshore wind power is being promoted on a large scale. However, there are still a large number of areas lacking wind resources on land. If micro-wind power generation is adopted, it has great development potential. However, traditional wind power generation technology usually requires a relatively high wind speed to generate electricity effectively, which limits its application in low-wind-speed areas. Content of the Utility Model

[0003] To solve this problem, a new type of wind power generation technology capable of utilizing low-wind-speed resources has been developed, namely the conical micro-wind acceleration power generation technology. The conical micro-wind acceleration power generation technology is developed on the basis of traditional wind power generation technology and is aimed at wind power generation in low-wind-speed areas. The core of this technology lies in utilizing the Venturi effect and fluid mechanics principles to accelerate the micro-wind through a specific conical shape design, so that wind power generation can still be achieved even in windy-poor or only micro-wind weather, thereby improving the efficiency and utilization hours of wind power generation.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] Design a conical gentle breeze acceleration power generation device with a certain ratio of inlet and outlet diameters and a taper angle, mainly including a conical wind capture and acceleration device (a conical wind capture device and a conical diffuser) and a wind power generation set (a wind turbine, a wind turbine support, and a generator). The wind power generation set includes a wind turbine, a wind turbine support, and a generator. The wind turbine support is fixed at the inlet of a 90° elbow, playing a supporting role. The wind turbine and the generator are distributed on both sides of the wind turbine support. The wind turbine faces the direction of the incoming wind, receives the accelerated wind, rotates under the action of the wind, and the shaft of the wind turbine passes through the wind turbine support and is connected to the generator. The conical wind capture and acceleration device includes a conical wind capture device and a conical diffuser, which are connected by an elbow. One end of the elbow is connected to the outlet of the conical wind capture device, and the other end is connected to a bearing. At the same time, the other end of the bearing is fixed to the conical diffuser, enabling the conical wind capture device, the wind power generation set, and the elbow to rotate relative to the conical diffuser. A base is connected to the tail outlet of the conical diffuser, and the support is fixed on the base to keep the whole device stable. A tail rudder is provided in the horizontal direction connected to the elbow. Under the action of the wind, the tail rudder will drive the conical wind capture device and the elbow to rotate, so that the conical opening can face the wind direction to facilitate the capture of more wind energy.

[0006] Compared with the existing wind power generation technology, the advantages of the present utility model are as follows:

[0007] First of all, this device can start generating electricity under gentle breeze conditions, far lower than the wind speed required by traditional wind turbines, enabling it to be applied in areas with relatively low wind speeds. Secondly, this device does not require large hubs, long blades, and pitch and yaw systems, greatly reducing the equipment manufacturing cost, improving the safety and stability of operation, and also having lower installation and operation and maintenance costs. Due to the absence of large rotating blades, the device has low noise and vibration and has little impact on the surrounding environment; at the same time, the conical wind capture and acceleration device plays a protective role for the wind power generation set inside the pipe, so it can resist the damage of extreme bad weather such as strong winds, heavy rains, heavy snows, and icing. In addition, this device can be customized according to different application requirements and site conditions, and is suitable for various environments such as urban rooftops, remote mountainous areas, or islands; it can be used alone or integrated with other energy systems (such as solar power generation) to form a diversified energy supply. Brief Description of the Drawings

[0008] Figure 1 is a schematic structural diagram (front view) of the conical gentle breeze acceleration power generation device of the present utility model.

[0009] Figure 2 is a schematic structural diagram (top view) of the conical gentle breeze acceleration power generation device of the present utility model.

[0010] Figure 3 is a schematic structural diagram (left view) of the conical gentle breeze acceleration power generation device of the present utility model.

[0011] Figure 4It is a schematic structural diagram of the wind power generation unit inside the conical gentle breeze acceleration power generation device of the present utility model.

[0012] Each label in the figure represents: 1 - conical wind-catching device; 2 - wind turbine; 3 - wind turbine support; 4 - generator; 5 - 90° elbow; 6 - bearing; 7 - diffuser; 8 - base; 9 - support; 10 - rudder Specific embodiments

[0013] The present utility model will be further described in detail below in conjunction with the specification drawings and this embodiment.

[0014] As Figures 1 to 4 shown, the conical gentle breeze acceleration power generation device of this embodiment includes a conical wind-catching acceleration device and a wind power generation unit.

[0015] The conical wind-catching acceleration device includes a conical wind-catching device (1) and a conical diffuser (7), which are connected by an elbow (5). One end of the elbow (5) is connected to the outlet of the conical wind-catching device (1), and the other end of the elbow (5) is connected to one end of the bearing (6). The other end of the bearing (6) is fixed to the conical diffuser (7), so that the conical wind-catching device (1), the wind power generation unit and the elbow (5) can rotate relative to the conical diffuser (7). A base (8) is connected to the tail outlet of the conical diffuser (7), and a support (9) is fixed on the base (8) to keep the whole device stable. A rudder (10) is provided in the horizontal direction connected to the elbow (5). Under the action of the wind, the rudder (10) will drive the conical wind-catching device (1) and the elbow (5) to rotate, so that the conical opening can face the wind direction to facilitate capturing more wind energy.

[0016] The wind power generation unit includes a wind turbine (2), a wind turbine support (3) and a generator (4). The wind turbine support (3) is fixed at the inlet of the 90° elbow (5) to play a supporting role. The wind turbine (2) and the generator (4) are distributed on both sides of the wind turbine support (3). The wind turbine faces the wind coming direction to receive the accelerated wind and rotates under the action of the wind. The shaft of the wind turbine (2) passes through the wind turbine support (3) and is connected to the generator (4).

[0017] The cone angle range of the conical wind-catching device (1) is 60 - 120°. The diameter ratio of the inlet and outlet is set according to the gentle breeze acceleration magnitude to achieve the optimization of wind energy capture and wind force acceleration. The conical wind-catching device (1) captures wind energy through the inlet, and the wind energy is accelerated at the outlet of the conical wind-catching device (1) to drive the wind turbine (2) to rotate and drive the generator (4) to generate electricity.

[0018] The wind turbine support (3) mainly plays a supporting role. The wind turbine support (3) is fixed at the outlet of the conical wind-catching device (1) to support the wind turbine (2) and the generator (4). A shaft hole is opened in the center to make the wind turbine (2) and the generator (4) coaxial.

[0019] One end of the elbow pipe (5) is connected to the outlet of the conical wind-catching device (1), and the other end is connected to a conical diffuser (7). A bearing (6) is connected to the outlet of the elbow pipe (5). With the vertical section of the elbow pipe (5) as the axis, the bearing (6) is fixed at the inlet of the conical diffuser (7). Thus, the conical wind-catching device (1) and the elbow pipe (5) can rotate relative to the conical diffuser (7).

[0020] The base (8) is connected to the outlet of the conical diffuser (7) to fix the whole device.

[0021] The tail rudder (10) is fixed at the rear end of the horizontal section of the elbow pipe (5). The action of the wind makes the tail rudder (10) always parallel to the wind direction, thereby driving the elbow pipe (5) and the conical wind-catching device (1) to rotate, so that the air inlet of the conical wind-catching device (1) faces the wind direction, capturing more wind energy.

[0022] In practical applications, for the conical low-wind-acceleration power generation device, different conical angle ranges and cone inlet and outlet diameter ratios of the conical wind-catching device (1) can be set under different application scenarios; at the same time, the conical diffuser (7) can also be set in the horizontal direction or other directions, so as to adjust the capacity and rated power of the wind power generation set, better adapt to different environments, improve its power generation efficiency, and achieve the best power generation effect.

[0023] Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A conical gentle breeze acceleration power generation device, characterized in that: It includes a conical wind-catching acceleration device and a wind power generation set. The wind power generation set includes a wind wheel (2), a wind wheel support (3) and a generator (4). The wind wheel support (3) is fixed at the entrance of a 90° elbow pipe (5) to play a supporting role. The wind wheel (2) and the generator (4) are distributed on both sides of the wind wheel support (3). The wind wheel faces the wind direction to receive the accelerated wind and rotates under the action of the wind. The shaft of the wind wheel (2) passes through the wind wheel support (3) and is connected to the generator (4). The conical wind-catching acceleration device includes a conical wind-catching device (1) and a conical diffuser (7), which are connected by the elbow pipe (5). One end of the elbow pipe (5) is connected to the outlet of the conical wind-catching device (1), and the other end of the elbow pipe (5) is connected to one end of a bearing (6). The other end of the bearing (6) is fixed to the conical diffuser (7), enabling the conical wind-catching device (1), the wind power generation set and the elbow pipe (5) to rotate relative to the conical diffuser (7). A base (8) is connected to the tail outlet of the conical diffuser (7), and a support (9) is fixed on the base (8) to keep the whole device stable. A tail rudder (10) is provided in the horizontal direction connected to the elbow pipe (5). Under the action of the wind, the tail rudder (10) will drive the conical wind-catching device (1) and the elbow pipe (5) to rotate, so that the conical opening can face the wind direction to facilitate capturing more wind energy.

2. The conical gentle breeze acceleration power generation device according to claim 1, wherein: The cone angle range of the conical wind-catching device (1) is 60 - 120°. The inlet and outlet diameter ratio is set according to the magnitude of the gentle wind acceleration to achieve the optimization of wind energy capture and wind acceleration. The conical wind-catching device (1) captures wind energy through the inlet, and the wind energy is accelerated at the outlet of the conical wind-catching device (1) to drive the wind wheel (2) to rotate and drive the generator (4) to generate electricity.

3. The conical gentle breeze accelerating power generation device according to claim 1, wherein: The wind wheel support (3) mainly plays a supporting role. The wind wheel support (3) is fixed at the outlet of the conical wind-catching device (1) to support the wind wheel (2) and the generator (4). An axial hole is opened in the center to make the wind wheel (2) and the generator (4) coaxial.

4. The conical gentle breeze accelerating power generation device according to claim 1, wherein: One end of the elbow pipe (5) is connected to the outlet of the conical wind-catching device (1), and the other end is connected to a conical diffuser (7).

5. The conical gentle breeze acceleration power generation device according to claim 1, characterized in that: A bearing (6) is connected to the outlet of the elbow pipe (5). Taking the vertical section of the elbow pipe (5) as the axis, the bearing (6) is fixed at the inlet of the conical diffuser (7), whereby the conical wind-catching device (1) and the elbow pipe (5) can rotate relative to the conical diffuser (7).

6. The conical gentle breeze acceleration power generation device according to claim 1, characterized in that: The base (8) is connected to the outlet of the conical diffuser (7) to fix the whole device.

7. The conical gentle breeze accelerating power generation device according to claim 1, wherein: The tail rudder (10) is fixed at the rear end of the horizontal section of the elbow pipe (5). The action of the wind makes the tail rudder (10) always parallel to the wind direction, thereby driving the elbow pipe (5) and the conical wind-catching device (1) to rotate, so that the wind-catching opening of the conical wind-catching device (1) is in the windward direction to capture more wind energy.

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