Industrial fan waste wind recycling power generation device

Abstract

This invention discloses an industrial fan exhaust air recovery and power generation device, which relates to the field of wind power generation technology. The industrial fan exhaust air recovery and power generation device includes a blower, an exhaust air recovery and power generation module, and a rectangular air duct. The exhaust air recovery and power generation module includes a rectangular inner shell and a generator. An inverter and an energy storage tank are sequentially installed at the bottom of the rectangular air duct near the generator. A rectangular air inlet is connected to the side of the rectangular inner shell. A wind turbine mechanism is installed inside the rectangular inner shell. The wind turbine mechanism includes a support member, an outer frame, and an inner frame. A first blade is fixedly connected to the surface of the outer frame, and a second blade is fixedly connected to the surface of the inner frame. A fixed blade is fixedly connected to the surface of the support member via a bracket. The fixed blade is installed between the first and second blades, achieving multi-stage blowing, guiding airflow, ensuring smooth airflow, realizing multi-stage blowing, good exhaust air recovery and power generation effect, and timely shielding, making it safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of wind power generation technology, and in particular to an industrial wind turbine waste wind recovery power generation device. Background Technology

[0002] Industrial fans are specifically designed for ventilation and air exchange, as well as fire-fighting high-temperature smoke extraction in tunnels, underground garages, high-end civil buildings, metallurgical plants, and factories. They mainly consist of components such as impellers, casings, inlet collectors, guide vanes, and motors. Industrial fan exhaust gas recovery power generation devices are energy-saving devices installed at the exhaust end of industrial centrifugal or axial fans. They capture the residual kinetic or static pressure energy in the exhaust airflow and convert it into electrical energy without affecting the original ventilation function of the fan.

[0003] For example, Chinese patent publication numbers: CN217976461U A wind power recovery and power generation system includes a cooling tower with an air inlet and an air outlet. The air inlet is located on the bottom periphery of the cooling tower, and the air outlet is located on the top of the cooling tower. The air supply assembly includes a blower installed at the bottom of the cooling tower, with the blower's exhaust outlet facing the cooling tower's air outlet. By adopting the above technical solution, when wind enters from the cooling tower's air inlet and exits from the cooling tower's air outlet, the wind force will drive the wind turbine to rotate, enabling the wind turbine to convert wind energy into electrical energy, thus generating electricity and improving the utilization rate of the air discharged from the cooling tower's air outlet.

[0004] In existing technology references, wind turbines can be rotated by wind power to generate wind power. However, such a design makes it inconvenient to guide the wind and prevents multiple cycles of blowing, thus affecting the utilization rate of the wind. Summary of the Invention

[0005] To solve the above technical problems, the present invention is implemented through the following technical solution:

[0006] An industrial wind turbine waste air recovery and power generation device includes:

[0007] A hair dryer, and a rectangular air duct fixedly installed at the air outlet of the hair dryer, wherein a guide mechanism is installed on the side inside the rectangular air duct;

[0008] The waste wind recovery power generation module includes a rectangular inner shell and a generator. The rectangular inner shell is fixedly installed in the middle of the inside of a rectangular air duct, and the generator is fixedly installed in the middle of the bottom of the rectangular air duct. An inverter and an energy storage box are installed in sequence at the bottom of the rectangular air duct and near the generator. A rectangular air inlet is connected to the side of the surface of the rectangular inner shell, and a wind turbine mechanism is installed inside the rectangular inner shell.

[0009] The wind turbine mechanism includes a support member, an outer frame, and an inner frame. The support member is fixedly installed at the middle of the top of the inner cavity of a rectangular inner shell. The central axis of the bottom of the outer frame is rotatably installed at the middle of the bottom of the inner cavity of the rectangular inner shell. The bottom of the inner frame is fixedly installed with the bottom of the inner cavity of the outer frame via a connecting rod. A first blade is fixedly connected to the surface of the outer frame, and a second blade is fixedly connected to the surface of the inner frame. A fixed blade is fixedly connected to the surface of the support member via a bracket. The fixed blade is installed between the first blade and the second blade. The airflow first applies a blowing force to the first blade, and combined with the rotational support of the outer frame for the first blade and the inner frame, the first blade and the outer frame rotate together. The airflow flowing from the surface of the first blade will be guided by the fixed blade and blow onto the surface of the second blade again, thus applying a blowing force to the second blade. This achieves staged multiple blowing, improves the utilization rate of wind, helps the wind turbine rotate smoothly as a whole, and promotes subsequent wind power generation.

[0010] An opening and closing mechanism is installed at the air outlet of the rectangular air duct.

[0011] Furthermore, the air guiding mechanism is used to guide the gas blown out by the blower and to distribute the air evenly. The air guiding mechanism is installed at the air inlet of the rectangular air duct.

[0012] The airflow guiding mechanism includes an air inlet hopper, which is fixedly installed inside a rectangular air duct. A rectangular plate is rotatably mounted at the air inlet position inside the air inlet hopper. A square notch is formed on the surface of the rectangular plate on the side away from the inner wall of the air inlet hopper. A baffle is rotatably mounted on the surface of the rectangular plate near the square notch. A right-angle spring is fixedly connected between the surface of the baffle and the surface of the rectangular plate. An electric telescopic rod is hinged to the inner side of the air inlet hopper. The telescopic end of the electric telescopic rod is hinged to the surface of the rectangular plate. The airflow is guided by two symmetrical rectangular plate assemblies. The V-shaped opening guides the air blown out by the hair dryer, facilitating its entry into the rectangular air inlet. Simultaneously, the airflow forces the baffle to rotate inwards, separating it from the square opening. The square opening then opens, and the right-angled spring deforms elastically under the pushing force, allowing some airflow to pass through the square opening. This results in a more even airflow distribution, preventing excessively high local wind speeds. Furthermore, the airflow along the baffle is diverted by the square opening, reducing the impact between symmetrical airflows on both sides and preventing turbulence, thus ensuring smooth airflow.

[0013] Furthermore, the air outlet of the air inlet hopper is connected to the rectangular air inlet tube, the rectangular plate is installed vertically, there are two rectangular plates, and the two rectangular plates are installed symmetrically along the central axis of the air inlet hopper.

[0014] The baffle is closed by two symmetrical rectangular plates. As the blowing force of the gas on the baffle disappears, the baffle rotates in the opposite direction to reset under the elastic force of the right-angle spring. The baffle covers the square notch. By sealing the air inlet of the air inlet hopper with the rectangular plates and square notch, the air outlet of the blower can be blocked, reducing the amount of debris entering the blower and protecting it.

[0015] Furthermore, the square notches are evenly distributed on the surface of the rectangular plate and on the side away from the inner wall of the air inlet hopper. The baffles are installed vertically, and there are two baffles, which are symmetrically installed along the central axis of the air inlet hopper.

[0016] Furthermore, the opening and closing mechanism includes a support shaft and a strip-shaped protective cover. The support shaft is rotatably mounted on the inner wall of the rectangular air duct near the air outlet via a bushing. The strip-shaped protective cover is fixedly mounted on the outer side of the rectangular air duct near the air outlet. Both ends of the support shaft penetrate the inner wall of the rectangular air duct and extend into the interior of the strip-shaped protective cover. An opening and closing plate is fixedly connected to the middle of the outer circular surface of the support shaft. A guide groove is formed on the surface of the opening and closing plate near the rectangular inner shell. The two outer ends of the support shaft are connected to the strip-shaped protective cover. The inner walls of the protective cover are fixedly connected with spiral springs. The side of the strip protective cover away from the rectangular air duct is detachably fixed with a cover plate. As the airflow blows towards the opening and closing plate in the rectangular air duct, the opening and closing plate is supported by the airflow and rotated outward by the support shaft. The evenly distributed opening and closing plates rotate and open together, which facilitates the gas in the rectangular air duct to be blown out. The guide groove plays a role in guiding and sorting the airflow, suppressing turbulence and boundary layer separation, making the gas flow stable and reducing aerodynamic noise.

[0017] Furthermore, when the opening and closing plate is blown outward by the airflow, the spiral spring sheet undergoes elastic deformation under the torque force connected by the support shaft.

[0018] Furthermore, the support shaft is installed vertically and is evenly distributed at the air outlet inside the rectangular air duct, and the opening and closing plates are evenly distributed at the air outlet inside the rectangular air duct.

[0019] When the blower stops blowing gas, the airflow within the rectangular duct ceases, the force of the airflow on the opening and closing plates disappears, and under the elastic force of the worm gear spring, the support shaft drives the opening and closing plates to rotate in the opposite direction and reset. This causes the evenly distributed opening and closing plates to close together, blocking the air outlet of the rectangular duct and preventing external debris from entering the rectangular duct. The cover plate can be disassembled and installed. When the cover plate is removed, it is easy to open the strip protective cover, which facilitates the inspection and maintenance of the structural components inside the strip protective cover.

[0020] Furthermore, the support shaft passes through the center of the spiral spring sheet, and there are two strip-shaped protective covers, which are symmetrically installed along the rectangular air duct.

[0021] Furthermore, the rectangular air duct is connected to the air outlet bracket of the blower, the generator is installed directly below the rectangular inner shell, the generator is electrically connected to the inverter, and the inverter is electrically connected to the energy storage box.

[0022] When the first and second blades are blown by the airflow together, and supported by the outer and inner frames, the outer frame drives the rotor of the generator to rotate, which generates electricity. The inverter converts the DC power into AC power and stores the electrical energy in the energy storage tank, thereby recovering the excess air blown out by the industrial fan to generate electricity.

[0023] Furthermore, the central shaft at the bottom of the outer frame passes through the bottom of the inner cavity of the rectangular inner shell and the bottom of the inner cavity of the rectangular air duct and extends to the outside of the rectangular air duct. The bottom end of the central shaft at the bottom of the outer frame is fixedly installed to the central shaft of the generator rotor through a coupling.

[0024] Furthermore, the top of the outer frame is rotatably mounted to the support member, and the top of the inner frame is rotatably mounted to the support member. The axis of the inner frame, the axis of the outer frame, and the central axis of the support member coincide. There are five fixed blades, and the five fixed blades are evenly distributed between the first blade and the second blade and close to the air outlet of the rectangular air inlet.

[0025] The beneficial effects of the technical solution provided by this invention include:

[0026] First, the airflow applies a blowing force to the first blade, and the outer frame supports the rotation of the first blade and the inner frame, causing the first blade and the outer frame to rotate together. The airflow flowing from the surface of the first blade will be guided by the fixed blade and blow onto the surface of the second blade again, thus applying a blowing force to the second blade. This achieves staged multiple blowing, improves the utilization rate of wind, helps the wind turbine rotate smoothly as a whole, and promotes subsequent wind power generation.

[0027] Second, when the first and second blades are blown by the airflow together, and supported by the outer and inner frames, the outer frame drives the rotor of the generator to rotate, which generates electricity through the generator. The inverter converts the DC power into AC power and stores the electrical energy in the energy storage tank, thereby recovering the excess air blown out by the industrial fan to generate electricity.

[0028] Third, by forming a V-shaped opening with two symmetrical rectangular plates on both sides, the gas blown out by the blower can be guided, making it easier for the gas to be blown into the rectangular air inlet. At the same time, under the blowing force of the airflow, the baffle is rotated inward, and the square notch is opened, allowing some airflow to pass through the square notch, making the airflow distribution more even and avoiding excessive local wind speed. At the same time, the airflow flowing along the baffle is diverted by the square notch, which can reduce the mutual impact of the symmetrical airflow on both sides, prevent turbulence, and make the gas flow smoothly.

[0029] Fourth, the rectangular plates on both sides are closed, and as the blowing force of the gas on the baffle disappears, the baffle rotates in the opposite direction to reset under the elastic force of the right-angle spring. The baffle covers the square notch. By sealing the air inlet of the air inlet hopper with the rectangular plates and square notch, the air outlet of the blower can be blocked, reducing the amount of debris entering the blower and protecting it.

[0030] 5. As the airflow blows towards the opening and closing plates within the rectangular duct, the opening and closing plates, supported by the airflow and the rotation of the support shaft, rotate outwards. The evenly distributed opening and closing plates rotate and open together, facilitating the outflow of gas from the rectangular duct. The guide grooves guide and comb the airflow, suppressing turbulence and boundary layer separation, resulting in smooth gas flow and reduced aerodynamic noise.

[0031] 6. When the airflow force on the opening and closing plates disappears, the support shaft drives the opening and closing plates to rotate in the opposite direction and reset under the elastic force of the worm gear spring. This causes the evenly distributed opening and closing plates to close together, blocking the air outlet of the rectangular air duct and preventing external debris from entering the rectangular air duct. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an industrial wind turbine waste air recovery and power generation device provided in an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the internal structure of an industrial wind turbine waste air recovery and power generation device provided in an embodiment of the present invention;

[0034] Figure 3 This is a cross-sectional schematic diagram of the internal structure of a rectangular air duct provided in an embodiment of the present invention;

[0035] Figure 4 This is a cross-sectional view of the internal structure of the rectangular inner shell provided in an embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of the overall structure of the wind turbine mechanism provided in an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the cross-sectional structure of the first blade, the second blade, and the fixed blade provided in an embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the connection structure between the flow guiding mechanism and the rectangular air duct provided in an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the connection structure between the flow guiding mechanism and the rectangular air inlet support provided in an embodiment of the present invention;

[0040] Figure 9 This is a cross-sectional view of the internal structure of the air inlet hopper provided in an embodiment of the present invention;

[0041] Figure 10 This is a schematic diagram of the connection structure between the opening and closing mechanism and the rectangular air duct provided in an embodiment of the present invention;

[0042] Figure 11 This is a schematic diagram of the overall structure of the opening and closing mechanism provided in an embodiment of the present invention.

[0043] In the diagram: 1. Hair dryer; 2. Rectangular air duct; 3. Air guiding mechanism; 4. Excess air recovery power generation module; 5. Opening and closing mechanism; 31. Air inlet hopper; 32. Rectangular plate; 33. Square notch; 34. Baffle; 35. Right-angle spring; 36. Electric telescopic rod; 41. Rectangular inner shell; 42. Generator; 43. Inverter; 44. Energy storage box; 45. Rectangular air inlet duct; 46. Wind turbine mechanism; 461. Support component; 462. Outer frame; 463. Inner frame; 464. First blade; 465. Second blade; 466. Fixed blade; 51. Support shaft; 52. Strip-shaped protective cover; 53. Opening and closing plate; 54. Air guiding groove; 55. Spiral spring; 56. Cover plate. Detailed Implementation

[0044] Example 1, see Figures 1-6 A technical solution is provided:

[0045] An industrial wind turbine waste air recovery and power generation device includes:

[0046] Hair dryer 1, and rectangular air duct 2 fixedly installed at the air outlet of hair dryer 1;

[0047] Excess wind recovery power generation module 4 includes a rectangular inner shell 41 and a generator 42. The rectangular inner shell 41 is fixedly installed in the middle of the rectangular air duct 2. The generator 42 is fixedly installed in the middle of the bottom of the rectangular air duct 2. An inverter 43 and an energy storage box 44 are installed in sequence at the bottom of the rectangular air duct 2 and near the generator 42. A rectangular air inlet duct 45 is connected to the side of the surface of the rectangular inner shell 41. A wind turbine mechanism 46 is installed inside the rectangular inner shell 41.

[0048] The rectangular air duct 2 is connected to the air outlet bracket of the blower 1. The generator 42 is installed directly below the rectangular inner shell 41. The generator 42 is electrically connected to the inverter 43. The inverter 43 is electrically connected to the energy storage box 44.

[0049] The wind turbine mechanism 46 includes a support member 461, an outer frame 462, and an inner frame 463. The support member 461 is fixedly installed at the middle of the top of the inner cavity of the rectangular inner shell 41. The central axis of the bottom of the outer frame 462 is rotatably installed at the middle of the bottom of the inner cavity of the rectangular inner shell 41. The bottom of the inner frame 463 is fixedly installed with the bottom of the inner cavity of the outer frame 462 via a connecting rod. A first blade 464 is fixedly connected to the surface of the outer frame 462, and a second blade 465 is fixedly connected to the surface of the inner frame 463. A fixed blade 466 is fixedly connected to the surface of the support member 461 via a bracket. The fixed blade 466 is installed on the first blade 464 and the second blade. Between blades 465, the air blown by the blower 1 enters the rectangular inner shell 41 through the rectangular air inlet 45. The airflow first applies blowing force to the first blade 464, and together with the outer frame 462, it supports the rotation of the first blade 464 and the inner frame 463, so that the first blade 464 and the outer frame 462 rotate together. The airflow flowing from the surface of the first blade 464 will be guided by the fixed blade 466 and blow onto the surface of the second blade 465 again, so that blowing force can be applied to the second blade 465. This achieves staged multiple blowing, improves the utilization rate of wind blowing, helps the wind turbine rotate smoothly as a whole, and promotes subsequent wind power generation.

[0050] The central shaft at the bottom of the outer frame 462 passes through the bottom of the inner cavity of the rectangular inner shell 41 and the bottom of the inner cavity of the rectangular air duct 2 and extends to the outside of the rectangular air duct 2. The bottom end of the central shaft at the bottom of the outer frame 462 is fixedly installed with the central shaft of the generator rotor 42 through a coupling.

[0051] When the first blade 464 and the second blade 465 are blown by the airflow, and supported by the outer frame 462 and the inner frame 463, the outer frame 462 drives the rotor of the generator 42 to rotate, which can generate electricity through the generator 42. The inverter 43 converts the DC power into AC power and stores the electrical energy in the energy storage box 44, thereby recovering the residual air blown out by the industrial fan to generate electricity.

[0052] The top of the outer frame 462 is rotatably mounted between the support member 461 and the top of the inner frame 463 is rotatably mounted between the support member 461. The axis of the inner frame 463, the axis of the outer frame 462 and the central axis of the support member 461 coincide. There are five fixed blades 466, and the five fixed blades 466 are evenly distributed between the first blade 464 and the second blade 465 and close to the air outlet of the rectangular air inlet duct 45.

[0053] Example 2, based on Example 1, see [link / reference] Figures 1 to 9 A technical solution is provided:

[0054] A flow guiding mechanism 3 is installed on the side inside the rectangular air duct 2;

[0055] The air guiding mechanism 3 is used to guide the gas blown out by the blower 1 and to distribute the air evenly. The air guiding mechanism 3 is installed at the air inlet of the rectangular air duct 2.

[0056] The airflow guiding mechanism 3 includes an air inlet 31, which is fixedly installed inside the rectangular air duct 2. A rectangular plate 32 is rotatably mounted at the air inlet position inside the air inlet 31. A square notch 33 is provided on the surface of the rectangular plate 32 away from the inner wall of the air inlet 31. A baffle 34 is rotatably mounted on the surface of the rectangular plate 32 near the square notch 33. A right-angle spring piece 35 is fixedly connected between the surface of the baffle 34 and the surface of the rectangular plate 32. An electric telescopic rod 36 is hinged to the inner side of the air inlet 31. The telescopic end of the electric telescopic rod 36 is hinged to the surface of the rectangular plate 32. When the blower 1 blows out air, the electric telescopic rod 36 is activated. By retracting the telescopic end of the electric telescopic rod 36, a pulling force can be applied to the rectangular plate 32. Rotating the air inlet 31 inwards opens the symmetrical rectangular plates 32 on both sides, forming a V-shaped opening that guides the gas blown out by the blower 1 into the rectangular air inlet 45. Simultaneously, the airflow causes the baffle 34 to rotate inwards, separating it from the square notch 33. The square notch 33 opens, and the right-angle spring 35 undergoes elastic deformation under the pushing force, allowing some airflow to pass through the square notch 33, resulting in a more even airflow distribution and preventing excessively high local wind speeds. Furthermore, the airflow along the baffle 34 is diverted by the square notch 33, reducing the impact between the symmetrical airflows on both sides and preventing turbulence, thus ensuring smooth gas flow.

[0057] The air outlet of the air inlet 31 is connected to the rectangular air inlet 45. Two rectangular plates 32 are installed vertically and are symmetrically installed along the central axis of the air inlet 31. When the blower 1 stops blowing gas, the electric telescopic rod 36 is activated again. By extending the telescopic end of the electric telescopic rod 36, a pushing force can be applied to the rectangular plates 32, causing them to rotate toward the air outlet of the blower 1. This closes the two symmetrical rectangular plates 32. As the blowing force of the gas on the baffle 34 disappears, the baffle 34 rotates in the opposite direction to reset under the elastic force of the right-angle spring 35. The baffle 34 covers the square notch 33. By sealing the air inlet of the air inlet 31 with the rectangular plates 32 and the square notch 33, the air outlet of the blower 1 is blocked, reducing the entry of debris into the blower 1 and protecting it.

[0058] Square notches 33 are evenly distributed on the surface of rectangular plate 32 and away from the inner wall of air inlet 31. Baffles 34 are installed vertically. There are two baffles 34, and the two baffles 34 are installed symmetrically along the central axis of air inlet 31.

[0059] Example 3, based on Examples 1 and 2, see below. Figures 1 to 11 A technical solution is provided:

[0060] The opening and closing mechanism 5 includes a support shaft 51 and a strip-shaped protective cover 52. The support shaft 51 is rotatably mounted on the inner wall of the rectangular air duct 2 near the air outlet via a bushing. The strip-shaped protective cover 52 is fixedly mounted on the outer side of the rectangular air duct 2 near the air outlet. Both ends of the support shaft 51 penetrate the inner wall of the rectangular air duct 2 and extend into the interior of the strip-shaped protective cover 52. An opening and closing plate 53 is fixedly connected to the middle of the outer surface of the support shaft 51. A guide groove 54 is formed on the surface of the opening and closing plate 53 near the rectangular inner shell 41. A spiral spring piece 55 is fixedly connected between the two outer ends of the support shaft 51 and the inner wall of the strip-shaped protective cover 52. The strip-shaped protective cover 52 is located away from the rectangular inner shell 41. A cover plate 56 is detachably fixed on one side of the rectangular air duct 2. As the airflow blows towards the opening and closing plate 53 within the rectangular air duct 2, the opening and closing plate 53 is assisted by the airflow and rotated under the support of the support shaft 51, causing the opening and closing plate 53 to rotate outward. The evenly distributed opening and closing plates 53 rotate and open together, facilitating the outflow of gas from the rectangular air duct 2. The guide groove 54 guides and combs the airflow, suppressing turbulence and boundary layer separation, making the gas flow smooth and reducing aerodynamic noise. When the opening and closing plate 53 is blown outward by the airflow, the spiral spring 55 is subjected to torque force and undergoes elastic deformation under the connection of the support shaft 51.

[0061] The support shaft 51 is installed vertically and is evenly distributed at the air outlet inside the rectangular air duct 2. The opening and closing plates 53 are also evenly distributed at the air outlet inside the rectangular air duct 2. When the blower 1 stops blowing gas, the airflow inside the rectangular air duct 2 stops, the blowing force on the opening and closing plates 53 disappears, and under the elastic force of the worm gear spring 55, the support shaft 51 drives the opening and closing plates 53 to rotate in the opposite direction to reset, thereby closing the evenly distributed opening and closing plates 53 together, blocking the air outlet of the rectangular air duct 2 and preventing external debris from entering the rectangular air duct 2. The cover plate 56 can be disassembled and installed. When the cover plate 56 is disassembled, it is easy to open the strip protective cover 52, which helps to inspect and maintain the structural components inside the strip protective cover 52.

[0062] The support shaft 51 passes through the center of the worm gear spring 55, and there are two strip protective covers 52, which are symmetrically installed along the rectangular air duct 2.

[0063] In use, first turn on the blower 1 to blow the gas. At the same time, turn on the electric telescopic rod 36. By retracting the telescopic end of the electric telescopic rod 36, a pulling force can be applied to the rectangular plate 32. The rectangular plate 32 rotates inward to the air inlet 31, which opens the two symmetrical rectangular plates 32. The V-shaped opening formed by the two symmetrical rectangular plates 32 can guide the gas blown by the blower 1, making it easier for the gas to be blown into the rectangular air inlet 45. At the same time, under the blowing force of the airflow, the baffle 34 is subjected to the blowing force of the airflow. The baffle 34 rotates inward and separates from the square notch 33. The square notch 33 is opened, and the right-angle spring 35 is pushed and deformed elastically, which allows some airflow to pass through the square notch 33, making the airflow distribution more even and avoiding excessive local wind speed. At the same time, the airflow flowing along the baffle 34 is diverted by the square notch 33, which can reduce the mutual impact of the two symmetrical airflows and prevent turbulence, so that the gas flows smoothly.

[0064] Furthermore, after the air blown by the blower 1 enters the rectangular inner shell 41 through the rectangular air inlet 45, the airflow first applies blowing force to the first blade 464, and in conjunction with the outer frame 462, it supports the rotation of the first blade 464 and the inner frame 463, so that the first blade 464 and the outer frame 462 rotate together. The airflow flowing from the surface of the first blade 464 will be guided by the fixed blade 466, and the airflow will blow onto the surface of the second blade 465 again, so that the blowing force can be applied to the second blade 465, thereby realizing graded multiple blowing, improving the utilization rate of the airflow, and helping the wind turbine to rotate smoothly as a whole.

[0065] When the first blade 464 and the second blade 465 are blown by the airflow together, and supported by the outer frame 462 and the inner frame 463, the outer frame 462 drives the rotor of the generator 42 to rotate, so that the generator 42 can generate electricity, and the inverter 43 converts the DC power into AC power and stores the electrical energy in the energy storage box 44, thereby recovering the residual air blown out by the industrial fan to generate electricity.

[0066] Furthermore, as the airflow blows towards the opening and closing plate 53 within the rectangular air duct 2, the opening and closing plate 53 is subjected to the blowing force of the airflow and, under the rotational support of the support shaft 51, rotates outward. The evenly distributed opening and closing plates 53 rotate and open together, facilitating the outflow of gas from the rectangular air duct 2. The guide groove 54 guides and combs the airflow, suppressing turbulence and boundary layer separation, making the gas flow smooth and reducing aerodynamic noise. When the opening and closing plate 53 is blown outward by the airflow, the spiral spring 55 undergoes elastic deformation under the torque force connected by the support shaft 51.

[0067] When the blower 1 stops blowing gas, the electric telescopic rod 36 is turned on again. By extending the telescopic end of the electric telescopic rod 36, a pushing force can be applied to the rectangular plate 32. The rectangular plate 32 rotates towards the air outlet of the blower 1, which can close the two symmetrical rectangular plates 32. As the blowing force of the gas on the baffle 34 disappears, the baffle 34 rotates in the opposite direction to reset under the elastic force of the right-angle spring 35. The baffle 34 covers the square notch 33. By sealing the air inlet of the air inlet 31 through the rectangular plate 32 and the square notch 33, the air outlet of the blower 1 can be blocked, reducing the entry of debris into the blower 1 and protecting the blower 1.

[0068] Furthermore, the airflow within the rectangular duct 2 stops, the blowing force on the opening and closing plate 53 disappears, and under the elastic force of the worm gear spring 55, the support shaft 51 drives the opening and closing plate 53 to rotate in the opposite direction to reset, thereby causing the evenly distributed opening and closing plates 53 to close together, blocking the air outlet of the rectangular duct 2 and preventing external debris from entering the rectangular duct 2. Moreover, the cover plate 56 can be disassembled and installed. When the cover plate 56 is disassembled, it is easy to open the strip protective cover 52, which helps to inspect and maintain the structural components inside the strip protective cover 52.

[0069] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An industrial fan exhaust air recovery and power generation device, characterized in that, include: A hair dryer, and a rectangular air duct fixedly installed at the air outlet of the hair dryer, wherein a guide mechanism is installed on the side inside the rectangular air duct; The waste wind recovery power generation module includes a rectangular inner shell and a generator. The rectangular inner shell is fixedly installed in the middle of the inside of a rectangular air duct, and the generator is fixedly installed in the middle of the bottom of the rectangular air duct. An inverter and an energy storage box are installed in sequence at the bottom of the rectangular air duct and near the generator. A rectangular air inlet is connected to the side of the surface of the rectangular inner shell, and a wind turbine mechanism is installed inside the rectangular inner shell. The wind turbine mechanism includes a support member, an outer frame, and an inner frame. The support member is fixedly installed at the middle of the top of the inner cavity of the rectangular inner shell. The central axis of the bottom of the outer frame is rotatably installed at the middle of the bottom of the inner cavity of the rectangular inner shell. The bottom of the inner frame is fixedly installed with the bottom of the inner cavity of the outer frame through a connecting rod. A first blade is fixedly connected to the surface of the outer frame, and a second blade is fixedly connected to the surface of the inner frame. A fixed blade is fixedly connected to the surface of the support member through a bracket, and the fixed blade is installed between the first blade and the second blade. An opening and closing mechanism is installed at the air outlet of the rectangular air duct.

2. The industrial fan exhaust wind recovery and power generation device according to claim 1, characterized in that: The air guiding mechanism is used to guide the gas blown out by the blower and to distribute the air evenly. The air guiding mechanism is installed at the air inlet of the rectangular air duct. The airflow guiding mechanism includes an air inlet hopper, which is fixedly installed inside a rectangular air duct. A rectangular plate is rotatably installed at the air inlet position inside the air inlet hopper. A square notch is opened on the surface of the rectangular plate on the side away from the inner wall of the air inlet hopper. A baffle is rotatably installed on the surface of the rectangular plate near the square notch. A right-angle spring is fixedly connected between the surface of the baffle and the surface of the rectangular plate. An electric telescopic rod is hinged to the inner side of the air inlet hopper. The telescopic end of the electric telescopic rod is hinged to the surface of the rectangular plate.

3. The industrial fan exhaust wind recovery and power generation device according to claim 2, characterized in that: The air outlet of the air inlet hopper is connected to the rectangular air inlet tube. The rectangular plate is installed vertically, and there are two rectangular plates, which are symmetrically installed along the central axis of the air inlet hopper.

4. The industrial fan exhaust wind recovery and power generation device according to claim 2, characterized in that: The square notches are evenly distributed on the surface of the rectangular plate and on the side away from the inner wall of the air inlet hopper. The baffles are installed vertically, and there are two baffles, which are symmetrically installed along the central axis of the air inlet hopper.

5. The industrial fan exhaust wind recovery and power generation device according to claim 1, characterized in that: The opening and closing mechanism includes a support shaft and a strip-shaped protective cover. The support shaft is rotatably mounted on the inner wall of the rectangular air duct near the air outlet via a bushing. The strip-shaped protective cover is fixedly mounted on the outer side of the rectangular air duct near the air outlet. Both ends of the support shaft penetrate the inner wall of the rectangular air duct and extend into the interior of the strip-shaped protective cover. An opening and closing plate is fixedly connected to the middle of the outer circular surface of the support shaft. A flow guiding groove is formed on the surface of the opening and closing plate on the side near the rectangular inner shell. A spiral spring is fixedly connected between the two outer ends of the support shaft and the inner wall of the strip-shaped protective cover. A cover plate is detachably fixedly installed on the side of the strip-shaped protective cover away from the rectangular air duct.

6. The industrial fan exhaust wind recovery and power generation device according to claim 5, characterized in that: The support shaft is installed vertically and is evenly distributed at the air outlet inside the rectangular air duct. The opening and closing plates are evenly distributed at the air outlet inside the rectangular air duct.

7. The industrial fan exhaust wind recovery and power generation device according to claim 5, characterized in that: The support shaft passes through the center of the spiral spring sheet, and there are two strip-shaped protective covers, which are symmetrically installed along the rectangular air duct.

8. The industrial fan exhaust wind recovery and power generation device according to claim 1, characterized in that: The rectangular air duct is connected to the air outlet bracket of the blower. The generator is installed directly below the rectangular inner shell. The generator is electrically connected to the inverter. The inverter is electrically connected to the energy storage box.

9. The industrial fan exhaust wind recovery and power generation device according to claim 1, characterized in that: The central shaft at the bottom of the outer frame passes through the bottom of the inner cavity of the rectangular inner shell and the bottom of the inner cavity of the rectangular air duct and extends to the outside of the rectangular air duct. The bottom end of the central shaft at the bottom of the outer frame is fixedly installed to the central shaft of the generator rotor through a coupling.

10. The industrial fan exhaust wind recovery and power generation device according to claim 1, characterized in that: The top of the outer frame is rotatably mounted between the support member and the top of the inner frame. The axis of the inner frame, the axis of the outer frame, and the central axis of the support member coincide. There are five fixed blades, and the five fixed blades are evenly distributed between the first blade and the second blade and close to the air outlet of the rectangular air inlet.

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