A clean energy storage unit based on wind energy utilization

Abstract

The application discloses a clean energy storage unit based on wind energy utilization, which comprises a main support shaft, a plurality of vertical shaft wind fans, a planetary gear transmission unit and a clockwork energy storage unit. The main support shaft is provided with a plurality of vertical shaft wind fans coaxial with the axis of the main support shaft at intervals from top to bottom. The planetary gear transmission unit is arranged in the vertical shaft wind fan and has a power input shaft and a power output shaft. The power input shaft is fixedly connected with the blades of the vertical shaft wind fan. In the application, the wind energy is utilized in gradient by the plurality of vertical shaft wind fans in the form of wind fan superposition, the utilization rate of wind energy is improved, the intermittent wind energy is converted into mechanical energy by the planetary gear transmission unit and is transmitted to the clockwork energy storage unit, and the rotation radius of the blades of the plurality of vertical shaft wind fans is set to gradually decrease downward according to the height, so that the wind energy of different gradients and wind speeds can be utilized.

Description

Technical Field

[0001] This invention relates to the field of new energy utilization technology, and more specifically to a clean energy storage unit based on wind energy utilization. Background Technology

[0002] In the context of the dual-carbon era, the power system is gradually transitioning towards green and low-carbon development. Renewable energy sources such as solar and wind power have enormous potential and are clean and pollution-free; their development and utilization are bound to see significant growth in the future. Large-scale, easily developed wind energy is mainly distributed in Northwest my country, where current mature wind turbine technology is well-suited. However, for low-speed, intermittent wind energy, especially in urban areas, installing large wind turbines is clearly not cost-effective and would severely impact the quality of life for residents. Currently, commonly used urban transportation vehicles such as cars and trains generate wind energy through intense friction with the surrounding air during high-speed travel.

[0003] A patent document with publication number CN 112253392 A discloses a composite micro-nano energy self-driving system for the energy internet, belonging to the field of micro-nano energy. It includes an integrated collection and conversion device for three types of micro-nano energy: wind, solar, and raindrop energy; a multi-source energy conditioning circuit; and an energy storage device. The integrated micro-nano energy collection and conversion device consists of an independent layer triboelectric nanogenerator, a thin-film photovoltaic cell, and a single-electrode triboelectric nanogenerator, respectively realizing the collection and conversion of wind, solar, and raindrop energy. This system can simultaneously and efficiently collect three types of micro-nano energy from the natural environment and is used for the passive operation of energy internet sensing terminals.

[0004] However, a wind turbine cluster contains multiple turbines, each with different starting performance and speed. If power generation is directly achieved in real time, it is not only difficult to control the power output of multiple turbines, but also the power generation fluctuates greatly due to the influence of intermittent wind speeds. Summary of the Invention

[0005] The technical problem to be solved by this invention is how to convert low-speed, intermittent wind energy into mechanical energy.

[0006] The present invention solves the above-mentioned technical problems through the following technical means: a clean energy storage unit based on wind energy utilization, comprising a main support shaft, multiple vertical axis wind turbines, a planetary gear transmission unit, and a spring-loaded energy storage unit. The main support shaft is provided with multiple vertical axis wind turbines arranged in layers at intervals from top to bottom, coaxial with the axis of the main support shaft. The planetary gear transmission unit is located inside the vertical axis wind turbines and has a power input shaft and a power output shaft. The power input shaft is fixedly connected to the blades of the vertical axis wind turbines, and the power output shaft is drivenly connected to the spring-loaded energy storage unit. The power output shafts of the multiple vertical axis wind turbines are coaxial and fixed sequentially. The rotation radius of the blades of the multiple vertical axis wind turbines decreases from the top of the main support shaft downwards.

[0007] By setting up multiple vertical axis fans and using the fans in a stacked manner to utilize wind energy in a gradient manner, the utilization rate of wind energy is improved. The intermittent wind energy is converted into mechanical energy and transferred to the spring energy storage unit through the planetary gear transmission unit. The rotation radius of the blades of the multiple vertical axis fans is set to gradually decrease downward according to their height, so that wind energy of different gradients and wind speeds can be utilized.

[0008] As a preferred technical solution, the vertical axis wind turbine includes a support platform rotatably connected to a main support shaft. The planetary gear transmission unit includes a sun gear, planetary gears, a ring gear, and a bracket plate. Multiple bracket plates coaxial with the main support shaft are fixed on the main support shaft. A sun gear is rotatably connected to the center of each bracket plate. Multiple equally spaced planetary shafts are rotatably connected to each bracket plate. Each planetary shaft is fixedly connected with a planetary gear meshing with the sun gear. A ring gear meshing with the planetary gears is fixed to the inner wall of the support platform. The planetary gear transmission unit avoids the problem of difficulty in controlling the power output of multiple wind turbines due to differences in starting performance and rotational speed, and also avoids the problem of large fluctuations in power generation caused by intermittent wind speeds. Furthermore, it utilizes spring-loaded energy storage technology to store the energy of multiple wind turbines and release it centrally.

[0009] As a preferred technical solution, the vertical axis fan further includes horizontal struts and vertical axis fan blades. The vertical axis fan blades are fixedly connected to the outer wall of the support platform through the horizontal struts. The number of horizontal struts on the vertical axis fan is the same as the number of vertical axis fan blades.

[0010] As a preferred technical solution, the vertical axis fan blade has an airfoil geometry, and the angle between the tangent of the vertical axis fan blade and the free end of the horizontal strut is an acute angle. The blade can be rotated by tilting the blade.

[0011] As a preferred technical solution, the main support shaft is provided with mounting platforms arranged in layers from top to bottom. The mounting platforms are rotatably connected to the support platforms. The top of the support platform is rotatably connected to the upper mounting platform through ball bearings, and the bottom of the support platform is rotatably connected to the lower mounting platform through tapered roller bearings. The use of ball bearings and tapered roller bearings can reduce rotational friction and improve energy transfer.

[0012] As a preferred technical solution, the multiple planetary shafts are coaxial and fixedly connected in sequence. A transmission gear is fixedly connected to the output end of the planetary shaft. A bushing is fitted at the bottom of the main support shaft, and a driven gear that meshes with the transmission gear is fixedly provided outside the bushing. The bushing is connected to the input end of the spring energy storage unit.

[0013] As a preferred technical solution, it also includes a bottom support platform. The top of the bottom support platform is fixedly connected to the main support shaft via a bracket. The bracket is offset from the planetary shaft. The bottom of the bottom support platform is formed with a receiving cavity. The spring energy storage unit is located in the receiving cavity. The bushing extends into the receiving cavity and is driven and engaged with the input end of the spring energy storage unit. By placing the spring energy storage unit in a sealed cavity, interference from other factors can be avoided.

[0014] As a preferred technical solution, the vertical axis fan is equipped with an anti-reverse mechanism on its outer side. The anti-reverse mechanism is located on the outer side of the main support shaft. By setting the anti-reverse mechanism, reverse rotation can be prevented.

[0015] As a preferred technical solution, the anti-reverse mechanism includes a semi-circular windbreak barrier located outside the vertical axis fan. The outer wall of the windbreak barrier is equipped with a photovoltaic panel. The semi-circular windbreak barrier can prevent the fan from reversing, and the photovoltaic panel can also absorb solar energy, thereby improving energy utilization efficiency.

[0016] As a preferred technical solution, the anti-reverse mechanism further includes a ratchet and a pawl. Pawls are rotatably connected to multiple mounting platforms via vertical shafts, and ratchets that are compatible with the pawls are fixedly connected to the outer wall of the support platform.

[0017] The advantages of this invention are:

[0018] (1) In this invention, wind energy is utilized in a gradient manner by setting multiple vertical axis fans and using the form of fan stacking, thereby improving the utilization rate of wind energy. The intermittent wind energy is converted into mechanical energy and transmitted to the spring energy storage unit through the planetary gear transmission unit. The rotation radius of the blades of the multiple vertical axis fans is set to gradually decrease downward according to their height, so that wind energy of different gradients and wind speeds can be utilized.

[0019] (2) In this invention, by setting up a planetary gear transmission unit, the problem of difficulty in controlling the power output of multiple wind turbines due to different starting performance and speed of different wind turbines is avoided. At the same time, the problem of huge fluctuations in power generation due to the influence of intermittent wind speed is avoided. Furthermore, the energy of multiple wind turbines is stored and released in a concentrated manner through the spring energy storage technology.

[0020] (3) In this invention, the use of ball bearings and tapered roller bearings can reduce rotational friction and improve energy transfer efficiency.

[0021] (4) In this invention, the semi-circular windbreak barrier can prevent the wind turbine from reversing, and the photovoltaic panel can absorb solar energy and improve energy utilization efficiency. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of a clean energy storage unit based on wind energy utilization provided in an embodiment of the present invention;

[0023] Figure 2 This invention provides a clean energy storage unit based on wind energy utilization. Figure 1 A schematic diagram of the AA cross-sectional structure;

[0024] Figure 3 A schematic diagram of a clean energy storage unit based on wind energy utilization provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a support platform structure for a clean energy storage unit based on wind energy utilization, provided for an embodiment of the present invention;

[0026] Figure 5 A top view of a clean energy storage unit based on wind energy utilization, provided as an embodiment of the present invention;

[0027] Figure 6 This invention provides a clean energy storage unit based on wind energy utilization. Figure 1 A magnified schematic diagram of the C-section structure;

[0028] Figure 7 This invention provides a clean energy storage unit based on wind energy utilization. Figure 1 A schematic diagram of the BB cross-sectional structure;

[0029] Figure 8 A schematic diagram of the wind speed curve of a clean energy storage unit based on wind energy utilization provided for an embodiment of the present invention;

[0030] Reference numerals: 1. Main support shaft; 11. Mounting platform; 12. Ball bearing; 13. Tapered roller bearing; 14. Bracket; 15. Bushing; 2. Vertical axis fan; 21. Support platform; 22. Horizontal strut; 23. Vertical axis fan blade; 3. Planetary gear transmission unit; 31. Sun gear; 32. Planetary gear; 33. Ring gear; 34. Bracket plate; 35. Planetary shaft; 36. Transmission gear; 37. Driven gear; 4. Spring energy storage unit; 5. Bottom support platform; 51. Receiving cavity; 6. Anti-reverse mechanism; 61. Windbreak; 62. Ratchet; 63. Pawl; 64. Vertical shaft. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] refer to Figure 1 and Figure 2 A clean energy storage unit based on wind energy utilization includes a main support shaft 1, multiple vertical axis fans 2, a planetary gear transmission unit 3, a spring-loaded energy storage unit 4, a bottom support platform 5, and an anti-reverse mechanism 6. The main support shaft 1 has multiple vertical axis fans 2 arranged in layers from top to bottom, coaxial with the axis of the main support shaft 1. The planetary gear transmission unit 3 is located inside the vertical axis fans 2 and has a power input shaft and a power output shaft. The power input shaft is fixedly connected to the blades of the vertical axis fans 2, and the power output shaft is drive-connected to the spring-loaded energy storage unit 4. The spring energy storage unit 4 is a spring shaft. The power output shafts of multiple vertical axis fans 2 are coaxial and fixed in sequence. The rotation radius of the blades of multiple vertical axis fans 2 decreases from the top of the main support shaft 1 downwards. The bottom support platform 5 is fixedly connected to the bottom of the main support shaft 1. The bottom of the bottom support platform 5 has a cavity 51 formed at the bottom. The spring energy storage unit 4 is located in the cavity 51. The bushing 15 extends into the cavity 51 and is driven and cooperates with the input end of the spring energy storage unit 4. The anti-reverse mechanism 6 is located outside the main support shaft 1 and is used to prevent the vertical axis fans 2 from reversing.

[0033] By using multiple vertical axis fans 2 in a superimposed manner to utilize wind energy in a gradient manner, the utilization rate of wind energy is improved. The intermittent wind energy is converted into mechanical energy and transferred to the spring-loaded energy storage unit 4 through the planetary gear transmission unit 3. The rotation radius of the blades of the multiple vertical axis fans 2 is set to gradually decrease downward according to their height, so that wind energy of different gradients and wind speeds can be utilized. Considering that air is a viscous fluid, the wind speed distribution along highways and railways is similar to the fluid velocity distribution on a flat plate. In this embodiment, the clean energy storage unit is applied in the green belt of high highways or along railway lines. The energy stored in the spring-loaded energy storage unit 4 is used to power nearby facilities, but it is not limited to this.

[0034] See Figure 2 The planetary gear transmission unit 3 includes a sun gear 31, planetary gears 32, ring gears 33, a bracket plate 34, and planetary shafts 35. In this embodiment, three planetary gears 32 are used as an example, but it is not limited to this. Multiple bracket plates 34 coaxial with its axis are fixed on the main support shaft 1. The sun gear 31 is rotatably connected at the center of the bracket plate 34. Three equally spaced planetary shafts 35 are rotatably connected on the bracket plate 34. The multiple planetary shafts 35 are coaxial and fixedly connected in sequence. Each planetary shaft 35 is fixedly connected with a planetary gear 32 that meshes with the sun gear 31. The inner wall of the support platform 21 is fixedly provided with ring gears 33 that mesh with the planetary gears 32.

[0035] In existing technologies, wind turbine clusters are equipped with multiple wind turbines. However, different wind turbines have different starting performance and speeds. If they generate electricity directly in real time, it is not only difficult to control the power output of multiple wind turbines, but also the power generation fluctuates greatly due to the influence of intermittent wind speeds. By setting up the planetary gear transmission unit 3, the problem of difficulty in controlling the power output of multiple wind turbines in real time due to different starting performance and speeds is avoided. At the same time, the problem of huge fluctuations in power generation due to the influence of intermittent wind speeds is also avoided. Furthermore, the energy of multiple wind turbines is stored through spring energy storage technology and released in a concentrated manner.

[0036] See Figure 3 and Figure 4 The vertical axis fan 2 includes a support platform 21 rotatably connected to the main support shaft 1, a horizontal strut 22, and vertical axis fan blades 23. The vertical axis fan blades 23 are fixedly connected to the outer wall of the support platform 21 through the horizontal strut 22. The number of horizontal struts 22 and vertical axis fan blades 23 on the vertical axis fan 2 is the same. The vertical axis fan blades 23 have an airfoil geometry structure, and the angle between the tangent of the vertical axis fan blades 23 and the free end of the horizontal strut 22 is an acute angle, which facilitates the opening and rotation of the blades.

[0037] See Figure 4 , Figure 5The main support shaft 1 is provided with mounting platforms 11 arranged in layers from top to bottom, with the mounting platforms 11 rotating in conjunction with the support platform 21. (See reference) Figure 6 The top of the bottom support platform 5 is fixedly connected to the main support shaft 1 via a bracket 14. The bracket 14 is offset from the planetary shaft 35. The mounting platform 11 has a through hole through which the planetary shaft 35 can pass. The top of the support platform 21 is rotatably connected to the upper mounting platform 11 via a ball bearing 12. The bottom of the support platform 21 is rotatably connected to the lower mounting platform 11 via a tapered roller bearing 13. The ball bearing 12 and tapered roller bearing 13 can reduce the loss of rolling friction and improve energy utilization efficiency.

[0038] See Figure 6 The planetary gear transmission unit 3 also includes a transmission gear 36 and a driven gear 37. The output end of the planetary shaft 35 is fixedly connected to the transmission gear 36. The bottom of the main support shaft 1 is fitted with a bushing 15, and the bushing 15 is fixedly fitted with a driven gear 37 that meshes with the transmission gear 36. The bushing 15 is connected to the input end of the spring energy storage unit 4. When the vertical axis fan blades 23 of different layers rotate, they drive the support platform 21 to rotate. The rotation of the support platform 21 drives the gear ring 33 to rotate. Since the sun gear 31 is rotatably connected to the bracket plate... At the center of 34, the bracket plate 34 is coaxially fixed with the main support shaft 1, and the planetary gears 32 mesh with the sun gear 31 and the ring gear 33 respectively, so that the three planetary gears 32 drive their corresponding planetary shafts 35 to rotate, and transmit the rotation to the bottom planetary shaft 35 through the planetary shafts 35 fixedly connected in sequence. The bottom planetary shaft 35 drives the transmission gear 36 to rotate, the three transmission gears 36 drive the middle driven gear 37 to rotate, the driven gear 37 drives the bushing 15 to rotate, and the end of the bushing 15 that extends into the receiving cavity 51 drives the mainspring shaft to rotate.

[0039] See Figure 4 , Figure 7 The anti-reverse mechanism 6 includes a semi-circular windbreak 61, a ratchet 62, a pawl 63, and a vertical shaft 64. The semi-circular windbreak 61 is located outside the vertical axis fan 2. A photovoltaic panel is provided on the outer wall of the windbreak 61. Pawls 63 are rotatably connected to multiple mounting platforms 11 via the vertical shaft 64. A ratchet 62 that matches the pawl 63 is fixedly connected to the outer wall of the support platform 21. The semi-circular windbreak 61 can prevent the fan from reversing. The photovoltaic panel can also absorb solar energy and improve energy utilization efficiency.

[0040] Working principle: When the vertical axis fan blades 23 of different layers rotate, they drive the support platform 21 to rotate. The rotation of the support platform 21 drives the gear ring 33 to rotate. Since the sun gear 31 is rotatably connected to the center of the bracket plate 34, the bracket plate 34 is coaxially fixed with the main support shaft 1. The planetary gears 32 mesh with the sun gear 31 and the gear ring 33 respectively, so that the three planetary gears 32 drive their corresponding planetary shafts 35 to rotate. The rotation is transmitted to the bottom planetary shaft 35 through the sequential fixed connection of the planetary shafts 35. The bottom planetary shaft 35 drives the transmission gear 36 to rotate. The three transmission gears 36 drive the middle driven gear 37 to rotate. The driven gear 37 drives the bushing 15 to rotate. The end of the bushing 15 that extends into the receiving cavity 51 drives the spring shaft to rotate. When the wind speed of different gradients is different or the vertical axis fan blades 23 of a certain layer rotate, it drives the vertical axis fan blades 23 of all layers to rotate.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clean energy storage unit based on wind energy utilization, characterized in that, The system includes a main support shaft (1), multiple vertical axis fans (2), a planetary gear transmission unit (3), and a spring energy storage unit (4). The main support shaft (1) has multiple vertical axis fans (2) arranged in layers from top to bottom, coaxial with the axis of the main support shaft (1). The planetary gear transmission unit (3) is located inside the vertical axis fans (2) and has a power input shaft and a power output shaft. The power input shaft is fixedly connected to the blades of the vertical axis fans (2), and the power output shaft is drivenly connected to the spring energy storage unit (4). The power output shafts of the multiple vertical axis fans (2) are coaxial and fixed sequentially. The rotation radius of the blades of the multiple vertical axis fans (2) decreases from the top of the main support shaft (1) downwards. The vertical axis fans (2) include a support platform (21) rotatably connected to the main support shaft (1). The planetary gear transmission unit (3) includes a sun gear (31) and planetary gears (32). The main support shaft (1) is fixed with multiple bracket plates (34) that are coaxial with its axis. A sun gear (31) is rotatably connected at the center of the bracket plate (34). Multiple planetary shafts (35) that are equally spaced are rotatably connected on the bracket plate (34). Each planetary shaft (35) is fixedly connected with a planetary gear (32) that meshes with the sun gear (31). A gear ring tooth (33) that meshes with the planetary gear (32) is fixedly provided on the inner wall of the support platform (21). The multiple planetary shafts (35) are coaxial and fixedly connected in sequence. A transmission gear (36) is fixedly connected to the output end of the planetary shaft (35). A bushing (15) is sleeved at the bottom of the main support shaft (1). A driven gear (37) that meshes with the transmission gear (36) is fixedly provided on the outside of the bushing (15). The bushing (15) is connected to the input end of the spring energy storage unit (4).

2. The clean energy storage unit based on wind energy utilization according to claim 1, characterized in that, The vertical axis fan (2) also includes horizontal struts (22) and vertical axis fan blades (23). The vertical axis fan blades (23) are fixedly connected to the outer wall of the support platform (21) through the horizontal struts (22). The number of horizontal struts (22) and vertical axis fan blades (23) on the vertical axis fan (2) is the same.

3. A clean energy storage unit based on wind energy utilization according to claim 2, characterized in that, The vertical axis fan blade (23) has an airfoil geometry, and the angle between the vertical axis fan blade (23) and the tangent at the free end of the horizontal strut (22) is an acute angle.

4. A clean energy storage unit based on wind energy utilization according to claim 1, characterized in that, The main support shaft (1) is provided with mounting platforms (11) arranged in layers from top to bottom. The mounting platforms (11) are rotatably connected to the support platform (21). The top of the support platform (21) is rotatably connected to the upper mounting platform (11) through ball bearings (12), and the bottom of the support platform (21) is rotatably connected to the lower mounting platform (11) through tapered roller bearings (13).

5. A clean energy storage unit based on wind energy utilization according to claim 1, characterized in that, It also includes a bottom support platform (5), the top of which is fixedly connected to the main support shaft (1) via a bracket (14). The bracket (14) is offset from the planetary shaft (35). The bottom of the bottom support platform (5) has a cavity (51) formed at the bottom. The spring energy storage unit (4) is located in the cavity (51). The bushing (15) extends into the cavity (51) and is driven to cooperate with the input end of the spring energy storage unit (4).

6. A clean energy storage unit based on wind energy utilization according to claim 3, characterized in that, Each vertical axis fan (2) is provided with an anti-reverse mechanism (6) on its outer side, and the anti-reverse mechanism (6) is located on the outer side of the main support shaft (1).

7. A clean energy storage unit based on wind energy utilization according to claim 6, characterized in that, The anti-reverse mechanism (6) includes a semi-circular windbreak barrier (61) located outside the vertical axis fan (2), and the outer wall of the windbreak barrier (61) is provided with a photovoltaic panel.

8. A clean energy storage unit based on wind energy utilization according to claim 7, characterized in that, The anti-reverse mechanism (6) also includes a ratchet (62) and a pawl (63). The main support shaft (1) is provided with mounting platforms (11) arranged in layers from top to bottom. Each of the mounting platforms (11) is rotatably connected to a pawl (63) via a vertical shaft (64). The outer wall of the support platform (21) is fixedly connected with a ratchet (62) that is compatible with the pawl (63).

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