Wind power fan pressurization ducted breeze power generation device

Abstract

The invention discloses a wind power fan pressurization ducted breeze power generation device, and relates to the technical field of wind power generation. The wind power generation device comprises a duct, a wind power supply pressurization assembly, sail blades, a first transmission shaft and a power generation assembly, wherein the wind power supply pressurization assembly is arranged at a first air inlet of the duct; the wind power air supply pressurizing assembly is used for accelerating and pressurizing air flow entering the duct; one end of the first transmission shaft is connected with the sail blades, and the other end of the first transmission shaft is in transmission connection with the wind power air supply pressurization assembly; the power generation assembly is arranged in the duct and is close to the first air outlet of the duct. By the adoption of the technical scheme, the device has the advantages of being low in maintenance cost, high in return on investment and capable of adapting to various installation environments.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and particularly to a wind-powered fan supercharged ducted micro-wind power generation device. Background Art

[0002] Wind power generation refers to converting the kinetic energy of wind into mechanical kinetic energy and then into electrical kinetic energy. That is, the wind turbine rotates under the action of wind, converting the kinetic energy of wind into the mechanical energy of the wind turbine shaft, and the generator rotates to generate electricity driven by the wind turbine shaft. It is an important form of wind energy utilization. Traditional large three-blade paddle fan wind turbines usually require relatively high wind speeds to achieve better power generation effects, which limits their installation locations to only open coastal areas, plains, grasslands, etc., thus restricting their applicability to a certain extent. In addition, in some areas where the wind speed is at a critical state, i.e., the wind speed is relatively small, traditional large three-blade paddle fan wind turbines may often be in a state of being unable to operate at full load, or even shut down for a long time because the wind speed does not reach the start threshold. This shortens the actual operation time of the equipment, reduces the utilization rate, and affects the return on investment. At the same time, the equipment being in a low-load or shutdown state for a long time will also accelerate the aging of equipment components and increase the equipment maintenance cost. Summary of the Invention

[0003] The purpose of the present invention is to provide a wind-powered fan supercharged ducted micro-wind power generation device aiming at the defects and deficiencies of the prior art, which has the advantages of low maintenance cost, high return on investment, and the ability to adapt to various installation environments.

[0004] To achieve the above purpose, the technical solution adopted by the invention is: a wind-powered fan supercharged ducted micro-wind power generation device, comprising: a duct, a wind-powered air supply supercharging component, sail blades, a first transmission shaft, and a power generation component. The wind-powered air supply supercharging component is arranged at the first air inlet of the duct; the wind-powered air supply supercharging component is used to accelerate and supercharge the air flow entering the duct; one end of the first transmission shaft is connected to the sail blades, and the other end is in transmission connection with the wind-powered air supply supercharging component; the power generation component is arranged inside the duct and near the first air outlet of the duct.

[0005] The present invention is further arranged such that the duct is arranged in a Venturi tube shape; the duct includes: an inlet section, a contraction section, a narrow section, and a diffusion section arranged in sequence along the direction away from the sail blades.

[0006] The present invention is further arranged to further include: an air intake component located between the sail blades and the duct; the air intake component includes: an air inlet pipe and a plurality of partitions placed inside the air inlet pipe; the plurality of partitions and the pipe wall of the air inlet pipe enclose a plurality of air intake channels. One end of the air inlet pipe is provided with a second air inlet connected to the outside, and the other end is bent toward the first air inlet and connected to the first air inlet; A throat section is provided at one end of the air intake pipe close to the first air intake port; a cross-sectional area of the throat section is smaller than a cross-sectional area of the end of the air intake pipe where the second air intake port is provided.

[0007] The present invention further provides that the wind-powered air supply and boosting component includes: a speed change device located at the first air inlet, and the input end of which is transmission-connected to the first transmission shaft; an air supply device arranged in the inlet section, and the air outlet surface of which faces the side of the duct away from the speed change device; and a rotating shaft with one end transmission-connected to the output end of the speed change device and the other end transmission-connected to the air supply device; the speed change device is used to accelerate the speed transmitted to the first transmission shaft by the sail blades and then transmit it to the air supply device via the rotating shaft; the air supply device is used to accelerate and boost the airflow entering the duct.

[0008] The present invention further provides that the speed change device is provided with multiple output ends; the multiple output ends can respectively output different rotational speeds; the air supply devices are provided with multiple air supply devices, and the multiple air supply devices are arranged in sequence along the inlet section toward the diffusion section; the rotating shaft is provided with multiple; the output ends of the speed change device, the air supply devices and the rotating shafts correspond one to one; Different rotating shafts, under the action of different output ends, drive different air supply devices to rotate at different speeds.

[0009] The present invention is further configured to include: a guide plate arranged on the inner wall of the contraction section; the guide plate is arranged in a spiral shape.

[0010] The present invention further provides that the power generation component is arranged in the narrow section; the power generation component includes: a power generation device, a turbine blade disk arranged on the side of the power generation device close to the first air inlet, and a second transmission shaft with one end fixedly connected to the turbine blade disk and the other end transmission connected to the power generation device.

[0011] The present invention further provides that the power generation assembly also includes: a first fairing body and a second fairing body respectively arranged at one end of the power generation device close to the first air inlet and one end away from the first air inlet; the first fairing body and the second fairing body are used to protect the power generation device.

[0012] The present invention further provides that the power generation components are provided in plurality and are arranged in series along the axial direction.

[0013] The present invention further provides that the power generation device is configured as a magnetic levitation generator.

[0014] After adopting the above technical solution, the beneficial effects of the present invention are as follows: In the present invention, a wind power supply and pressurization component is provided at the air inlet of the duct to accelerate and pressurize the airflow entering the duct, increasing the kinetic energy of the airflow, providing more sufficient energy for subsequent power generation, and improving the utilization efficiency of micro-wind energy. This wind-powered fan pressurized duct type micro-wind power generation device can also achieve high-efficiency power output under micro-wind conditions, ensuring the long-term stable operation of the device, reducing the maintenance cost, and being adaptable to various installation environments, with a high return on investment. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 is the structural schematic diagram of the present invention; Figure 2 is another structural schematic diagram of the present invention; Figure 3 is the sectional view of the air intake component; Figure 4 is the top view of the air intake component; Figure 5 is the structural schematic diagram of the intake pipe being divided into an air intake channel by two partition plates.

[0017] Description of the Reference Numerals: 100, duct; 110, first air inlet; 120, first air outlet; 130, inlet section; 140, contraction section; 150, narrow section; 160, diffusion section; 210, speed change device; 220, air supply device; 230, rotating shaft; 300, sail blade; 400, first transmission shaft; 510, power generation device; 520, turbine disk; 530, second transmission shaft; 540, first fairing; 550, second fairing; 600, air intake component; 610, intake pipe; 611, second air inlet; 612, second air outlet; 613, throat section; 620, partition plate; 630, air intake channel; 700, guide vane. Detailed Embodiments

[0018] The following will further elaborate on the present invention in conjunction with the drawings.

[0019] This specific embodiment is only an explanation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0020] This embodiment relates to a wind-powered fan supercharged ducted micro-wind power generation device. Referring to Figure 1 - Figure 2 , it includes: a duct 100, a wind-powered air supply supercharging component, a sail blade 300, a first transmission shaft 400, and a power generation component. The wind-powered air supply supercharging component is arranged at the first air inlet 110 of the duct 100, and the wind-powered air supply supercharging component is used to accelerate and supercharge the airflow entering the duct 100. One end of the first transmission shaft 400 is connected to the sail blade 300, and the other end is in transmission connection with the wind-powered air supply supercharging component; the power generation component is arranged inside the duct 100 and near the first air outlet 120 of the duct 100.

[0021] In this embodiment, the sail blade 300 is a group of large-area vertical windward surfaces arranged, which can capture the airflow in all directions in a large area. Under the action of the airflow, the sail blade 300 is pushed to rotate. The first transmission shaft 400, as the power transmission device of the sail blade 300, transmits the power of the rotation of the sail blade 300 to the wind-powered air supply supercharging component. The wind-powered air supply supercharging component located at the first air inlet 110 of the duct 100 performs multi-stage acceleration and supercharging on the airflow entering the duct 100, so that the airflow can have a higher flow rate in the duct 100, providing more sufficient energy for subsequent power generation. The power generation component converts the kinetic energy of the airflow into electrical energy. The wind-powered air supply supercharging component improves the utilization efficiency of the micro-wind energy, so that the micro-wind power generation device 510 of this wind-powered fan supercharged double funnel duct 100 can also achieve high-efficiency power output under micro-wind conditions, ensuring that this device can operate stably for a long time, reducing the maintenance cost, and can also adapt to a variety of installation environments, with a relatively high return on investment.

[0022] Further, the duct 100 is arranged in a Venturi tube shape. The duct 100 includes: an inlet section 130, a contraction section 140, a narrow section 150, and a diffusion section 160 arranged in sequence along the direction away from the sail blade 300. When the duct 100 is arranged in a Venturi tube shape, when the airflow flows from the inlet section 130 to the narrow section 150, the flow rate of the airflow gradually increases, forming a specific airflow distribution. In this embodiment, the duct 100 serves as the outer shell main body of this wind-powered fan supercharged ducted micro-wind power generation device 510 and the fixed support for other components. Specifically, the duct 100 is formed by connecting two funnel-shaped tubular channels back to back.

[0023] In this embodiment, the power generation assembly is disposed within the narrow section 150. The power generation assembly includes: a power generation device 510, a turbine disk 520, and a second transmission shaft 530. The turbine disk 520 is disposed on a side of the power generation device 510 close to the first air inlet 110. One end of the second transmission shaft 530 is fixedly connected to the turbine disk 520, and the other end is drivingly connected to the power generation device 510. Specifically, the power generation device 510 is disposed within the narrow section 150. When the airflow within the duct 100 flows through the narrow section 150 of the duct 100, its speed is significantly increased. The turbine disk 520 can directly receive the impact kinetic energy of the high-speed airflow, and efficiently transfer the rotational mechanical energy to the power generation device 510 through the second transmission shaft 530, fully utilizing the airflow kinetic energy and improving the power generation efficiency.

[0024] The power generation assembly further includes: a first fairing 540 and a second fairing 550 respectively disposed at one end of the power generation device 510 close to the first air inlet 110 and at one end away from the first air inlet 110; the first fairing 540 and the second fairing 550 are used to protect the power generation device 510. The first fairing 540 and the second fairing 550 are respectively disposed at both ends of the power generation device 510 to form a closed protection structure, which can effectively isolate the erosion of external impurities (such as dust, droplets, solid particles, etc.) on the power generation device 510, reduce the risk of mechanical wear and electrical faults, and extend the service life of the equipment. A plurality of power generation assemblies are provided and arranged in series along the axial direction to increase the power generation capacity. In this embodiment, referring to Figure 2 , Figure 2 is a horizontal-axis wind-powered fan supercharged double-funnel duct 1 type of micro-wind power generation device, and the power generation assemblies are connected in series. The power generation assemblies are arranged horizontally, and two power generation assemblies are provided. In some embodiments, three power generation assemblies can also be provided. In this embodiment, the power generation device 510 is provided as a magnetic levitation generator, which has the advantages of low energy loss, long service life, and high reliability.

[0025] In this embodiment, referring to Figure 1 and Figure 3 - Figure 5, the micro-wind power generation device 510 of the wind-powered fan supercharged double-funnel duct 100 type further includes: an air intake assembly 600 located between the sail blades 300 and the duct 100; the air intake assembly 600 includes: an air intake pipe 610 and a plurality of partition plates 620 disposed within the air intake pipe 610. The plurality of partition plates 620 and the inner wall of the air intake pipe 610 enclose a plurality of air intake channels 630; one end of the air intake pipe 610 is provided with a second air intake 611 that communicates with the outside, and the other end is bent towards the direction of the first air intake 611 and communicates with the first air intake 611. That is, the second air outlet 612 of the air intake pipe 610 communicates with the first air intake 611. A throat section 613 is provided at one end of the air intake pipe 610 close to the first air intake 611; the cross-sectional area of the throat section 613 is smaller than the cross-sectional area of the end of the air intake pipe 610 provided with the second air intake 611. Specifically, the function of the air intake pipe 610 is to capture the flowing air current blown by the wind from any direction through the second air intake 611, and to introduce the air current into the first air intake 110 through the second air outlet 612. The function of the partition plates is to prevent the air current captured by the second air intake 611 from flowing in other directions and affecting the air intake effect, so as to guide the air current to the throat section 613 of the air intake pipe 610. The cross-sectional area of the throat section 613 is smaller than the cross-sectional area of the end of the air intake pipe 610 provided with the second air intake 611, so as to form a venturi effect to accelerate the air current guided into it towards the first air intake 611. In this embodiment, six air intake channels 630 are separated between the inner wall of the air intake pipe 610 and the plurality of partition plates 620. In some embodiments, eight air intake channels 630 can also be separated between the inner wall of the air intake pipe 610 and the plurality of partition plates 620.

[0026] Further, referring to Figure 1 - Figure 2, the wind-powered air supply and pressurization assembly includes: a speed-changing device 210, an air supply device 220, and a rotating shaft 230. Among them, the speed-changing device 210 is located at the first air inlet 110, and the input end of the speed-changing device 210 is in transmission connection with the first transmission shaft 400. The air supply device 220 is arranged in the inlet section 130, and the air outlet surface faces the side of the duct 100 away from the speed-changing device 210. One end of the rotating shaft 230 is in transmission connection with the output end of the speed-changing device 210, and the other end is in transmission connection with the air supply device 220. The speed-changing device 210 is used to accelerate the speed transmitted from the wind sail blades 300 to the first transmission shaft 400 and then transmit it to the air supply device 220 through the rotating shaft 230; the air supply device 220 is used to accelerate and pressurize the air flow entering the duct 100. In this embodiment, arranging the air supply device 220 in the duct 100 and in the inlet section 130 is beneficial to accelerating the air flow entering the duct 100 and generating a greater thrust on the air flow entering the duct 100. Under the same power consumption, the air supply device 220 arranged in the duct 100 can generate a greater thrust than the equivalent isolated air supply device 220. The speed-changing device 210 drives the air supply device 220 to rotate at an accelerated speed by accelerating the rotating shaft 230, so that the air supply device 220 has a higher rotational speed, and finally accelerates the air flow entering the duct 100. In this embodiment, the speed-changing device 210 is set as a transmission, and the air supply device 220 is set as a fan.

[0027] In this embodiment, there are multiple output ends provided at the output end of the speed-changing device 210; the multiple output ends can respectively output different rotational speeds; there are multiple air supply devices 220, and the multiple air supply devices 220 are sequentially arranged along the inlet section 130 in the direction towards the diffuser section 160; there are multiple rotating shafts 230; the output ends of the speed-changing device 210, the air supply devices 220, and the rotating shafts 230 are in one-to-one correspondence; under the action of different output ends, different rotating shafts 230 drive different air supply devices 220 to rotate at different speeds. Specifically, in this embodiment, referring to Figure 1, four air supply devices 220 are provided, which are sequentially arranged as a low-pressure air supply device 220, a first medium-pressure air supply device 220, a second medium-pressure air supply device 220, and a high-pressure air supply device 220 along the inlet section 130 towards the diffusion section 160. Correspondingly, four output ends are provided at the output end of the speed change device 210, namely a first output end, a second output end, a third output end, and a fourth output end. The rotating shaft 230 is also correspondingly provided with a first rotating shaft 230, a second rotating shaft 230, a third rotating shaft 230, and a fourth rotating shaft 230, forming a concentric multi-axis sleeve-type rotating shaft structure. During the operation of the speed change device 210, the first output end outputs a low speed, the fourth output end outputs a high speed, and the speeds output by the second output end and the third output end are between the speeds output by the first output end and the fourth output end. In this way, the air flow entering the duct 100 through the first air inlet 110 is pressurized and accelerated step by step, enabling the air flow entering the duct 100 to obtain a greater thrust and greater kinetic energy. In some embodiments, five output ends of the speed change device 210, the rotating shaft 230, and the air supply device 220 can also be provided.

[0028] In this embodiment, the wind power fan supercharging duct-type gentle wind power generation device further includes: a guide vane 700 provided on the inner wall of the contraction section 140. The guide vane 700 is arranged in a spiral shape so as to make the air flow flowing in the duct 100 form a rotating air flow with a tornado effect. In this way, the centrifugal force of the rotating air flow in the duct 100 causes it to gather towards the inner wall of the duct 100, forming a stronger air flow near the wall of the duct 100, providing a stronger high-speed air flow and kinetic energy for driving the turbine disk 520 of the power generation device 510, and pushing the turbine disk 520 to drive the generator to generate electricity. The high-speed rotating air flow is beneficial to improving the working efficiency of the turbine disk 520, enabling the power generation device to obtain a more efficient torque, and improving the power generation efficiency of the wind power fan supercharging double-funnel duct 100-type gentle wind power generation device 510.

[0029] Advantages of the present invention: The wind-powered fan supercharged ducted gentle breeze power generation device sets the duct 100 as a Venturi tube shape, enabling the air flow to naturally increase in speed and pressure within the duct 100. A wind-powered air supply supercharging component is provided at the first air inlet 110 within the duct 100. Driven by the wind-powered air supply supercharging component, the air flow within the duct 100 can be further increased in speed and pressure, enabling the air flow to obtain greater kinetic energy. Then, by using the flow guide plate 700 provided on the inner wall of the contraction section 140 of the duct 100, the air flow can form an air flow with a tornado effect, which can provide a more powerful high-speed air flow and kinetic energy for driving the turbine disk 520 of the power generation device 510, and push the turbine disk 520 to drive the generator to generate electricity. In this way, the wind-powered fan supercharged ducted gentle breeze power generation device can achieve high-efficiency power output even under gentle breeze conditions, reduce maintenance costs, and have a high return on investment. At the same time, it can also adapt to various installation environments and increase the applicable range of the wind-powered fan supercharged ducted gentle breeze power generation device.

[0030] The above is only used to illustrate the technical solution of the present invention and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, shall be covered by the scope of the claims of the present invention.

Claims

1. A wind-powered fan supercharged ducted gentle wind power generation device, characterized in that, Comprising: A duct (100), a wind power air supply and pressurization assembly, a sail blade (300), a first transmission shaft (400), and a power generation assembly. The wind power air supply and pressurization assembly is disposed at a first air inlet (110) of the duct (100); the wind power air supply and pressurization assembly is used for accelerating and pressurizing the air flow entering the duct (100); one end of the first transmission shaft (400) is connected to the sail blade (300), and the other end is in transmission connection with the wind power air supply and pressurization assembly; the power generation assembly is disposed inside the duct (100) and near a first air outlet (120) of the duct (100).

2. The wind-powered fan supercharged duct type gentle breeze power generation device according to claim 1, characterized in that, The duct (100) is arranged in a Venturi tube shape; the duct (100) comprises: an inlet section (130), a contraction section (140), a narrow section (150), and a diffusion section (160) which are sequentially arranged in a direction away from the sail blade (300).

3. The wind-powered fan supercharged ducted gentle breeze power generation device according to claim 2, wherein, Further comprising: an air intake assembly (600) located between the sail blade (300) and the duct (100); the air intake assembly (600) comprises: an air inlet pipe (610) and a plurality of partition plates (620) disposed inside the air inlet pipe (610); a plurality of the partition plates (620) and the pipe wall of the air inlet pipe (610) enclose a plurality of air intake channels (630); One end of the air inlet pipe (610) is provided with a second air inlet (611) for communicating with the outside, and the other end is bent towards the direction of the first air inlet (110) and is in communication with the first air inlet (110); One end of the air inlet pipe (610) near the first air inlet (110) is provided with a throat section (613); the cross-sectional area of the throat section (613) is smaller than the cross-sectional area of the end of the air inlet pipe (610) provided with the second air inlet (611).

4. The wind-powered fan supercharged duct type gentle breeze power generation device according to claim 3, characterized in that, The wind power air supply and pressurization assembly comprises: a speed change device (210) located at the first air inlet (110) and having an input end in transmission connection with the first transmission shaft (400), a air supply device (220) disposed inside the inlet section (130) and having an air outlet surface facing a side of the duct (100) away from the speed change device (210), and a rotating shaft (230) having one end in transmission connection with an output end of the speed change device (210) and the other end in transmission connection with the air supply device (220); the speed change device (210) is used for accelerating the speed transmitted from the sail blade (300) to the first transmission shaft (400) and then transmitting it to the air supply device (220) through the rotating shaft (230); the air supply device (220) is used for accelerating and pressurizing the air flow entering the duct (100).

5. The wind-powered fan supercharged ducted gentle breeze power generation device according to claim 4, characterized in that, The output end of the speed change device (210) is provided with a plurality of; the plurality of output ends can respectively output different rotational speeds; the air supply devices (220) are provided with a plurality of, and the plurality of air supply devices (220) are sequentially arranged along the inlet section (130) towards the diffusion section (160); the rotating shafts (230) are provided with a plurality of; the output ends of the speed change device (210), the air supply devices (220) and the rotating shafts (230) are in one-to-one correspondence; Under the action of different output ends, different rotating shafts (230) drive different air supply devices (220) to rotate at different speeds.

6. The wind-powered fan supercharged ducted type gentle breeze power generation device according to claim 5, characterized in that, It further includes: A flow guide plate (700) arranged on the inner wall of the contraction section (140); the flow guide plate (700) is arranged in a spiral shape.

7. The wind-powered fan supercharged ducted type gentle breeze power generation device according to claim 6, characterized in that, The power generation assembly is arranged in the narrow section (150); the power generation assembly includes: a power generation device (510), a turbine disk (520) arranged on the side of the power generation device (510) close to the first air inlet (110), and a second transmission shaft (530) with one end fixedly connected to the turbine disk (520) and the other end in transmission connection with the power generation device (510).

8. The wind-powered fan supercharged duct type gentle breeze power generation device according to claim 7, characterized in that, The power generation assembly further includes: a first fairing body (540) and a second fairing body (550) respectively arranged at one end of the power generation device (510) close to the first air inlet (110) and at one end far from the first air inlet (110); the first fairing body (540) and the second fairing body (550) are used to protect the power generation device (510).

9. The wind-powered fan supercharged duct type gentle breeze power generation device according to claim 8, characterized in that, The power generation assemblies are provided with a plurality of and are arranged in series along the axis.

10. The wind power fan supercharged duct type gentle breeze power generation device according to claim 9, characterized in that, The power generation device (510) is arranged as a magnetic levitation generator.

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