CN117212056A - Wind power generation device with wind collecting tower and spherical fan blades - Google Patents

Abstract

The invention provides a wind power generation device equipped with a wind collecting tower and a spherical fan blade, which includes a top guide ring, a guide support assembly, a bottom guide assembly and a spherical fan assembly. The top guide ring is connected to the bottom through the guide support assembly. The air guide components are connected, and the top air guide ring, the air guide support assembly and the bottom air guide assembly define an accommodation space; the air guide support assembly is provided with a longitudinal air duct, and the longitudinal air duct is used to guide the air flowing through the container. The bottom air guide assembly is provided with a transverse air duct, and the transverse air duct is used to guide the flowing air to the accommodation space; the spherical fan assembly is located in the accommodation space, and the spherical fan assembly is used to connect to the external power generation structure connect. The invention makes power generation by wind power more convenient and efficient, and effectively avoids the technical problems in the prior art that the length of the fan blade is lengthened in order to improve the power generation efficiency, and that the long fan blade is not suitable for maintenance and transportation.

Description

A wind power generation device equipped with a wind collecting tower and spherical fan blades

Technical field

The invention belongs to the technical field related to wind power generation equipment, and in particular, relates to a wind power generation device provided with a wind collecting tower and a spherical fan blade.

Background technique

At present, in the field of new energy power generation, wind power generation is a very important part. At this stage, wind power generation is still generally developed in the form of a wind turbine with a wind cylinder and a wind wheel. Therefore, the way to increase power generation is to lengthen the size of the impeller to achieve the technical effect of increasing the wind receiving area.

Among them, the wind energy formula of wind power generation is E=1/2Ptηπr ² V ³ .

It can be seen from the above formula that when the wind density is constant, the wind energy is the square of the radius of the wind wheel and the cube of the wind speed. Therefore, if we develop according to the existing technical route of tower plus wind wheel, if we want to increase the power generation, we can only increase the length of the fan blades and increase the wind receiving area. However, the existing route is subject to many shortcomings as follows, which makes the project more difficult and various problems will occur frequently:

1. The longer the fan blade, the more difficult it is to transport. Many wind farms are in mountains, and transportation conditions are more restricted, making transportation costs extremely high. 2. The generator in the existing technology is at the top, making operation and maintenance difficult. In the event of a fire, 3. The longer the fan blade, the heavier the fan blade, and the heavier the generator. The two parties together form a top-heavy shape. The more unstable the structure, the greater the risk of the tower collapse. At the same time, The structural cost of the tower's shear resistance will also increase significantly; 4. The longer the fan blade, the closer the material properties of the existing fiber materials are to the limit, and the greater the probability of the slurry breaking in extreme weather such as typhoons, snowstorms, etc.; 5. The longer the blade, the greater the tip speed ratio, and the greater the noise it generates, and it needs to be farther away from cities and buildings, which further increases the cost of transmission lines; 6. The development direction of decentralized wind power in my country is to reduce The cost of the power grid closely integrates the power generation side and the power consumption side. However, the larger the fan size, the further the noise and image interference will be farther away from the industrial park and urban residents.

Contents of the invention

The problem to be solved by the present invention is to provide a wind power generation device equipped with a wind collecting tower and a spherical fan blade, which is particularly suitable for solving the technical problems of inconvenient transportation and inconvenient maintenance of the wind power generation device due to the oversized fan blades, and is effective. Improve energy conversion efficiency.

In order to solve the above technical problems, the technical solution adopted by the present invention is to provide a wind power generation device equipped with a wind collecting tower and a spherical fan blade, including a top guide ring, a guide support assembly, a bottom guide assembly and a spherical fan assembly. , the top flow guide ring is connected to the bottom flow guide assembly through the flow guide support assembly, and the top flow guide ring, the flow guide support assembly and the bottom flow guide assembly define an accommodation space ;

The flow guide support assembly is provided with a longitudinal air duct, and the longitudinal air duct is used to guide the flowing air to the accommodation space;

The bottom air guide assembly is provided with a transverse air duct, and the transverse air duct is used to guide the flowing air to the accommodation space;

The spherical fan assembly is disposed in the accommodation space, and the spherical fan assembly is used to connect to an external power generation structure.

Further, the flow guide support assembly includes a shear structural column and first guide plates provided on both sides of the shear structural column. The shear structural column and the first guide plates on both sides are The longitudinal air duct is formed between them, and one end of the shear structural column is connected to the top guide ring, and the other end is connected to the bottom guide component;

One end of the shear structural column is connected to the top guide ring, and the other end is connected to the bottom guide component.

Furthermore, there are four groups of the flow guide support components, and the adjacent flow guide support components are spaced apart and surround the accommodation space.

Further, the bottom flow guide assembly includes a second flow guide plate, and both ends of the second flow guide plate are respectively connected to the adjacent flow guide support components;

The second guide plate guides the air flowing through the accommodation space.

Further, the bottom diversion assembly also includes a plurality of extraction chimneys, and the plurality of extraction chimneys are connected in sequence between the adjacent shear structural columns, located on both sides. The extraction chimneys at the ends are respectively connected to the corresponding shear structural columns.

Further, the bottom flow guide assembly also includes a pressure flow conversion plate, both ends of the pressure flow conversion plate are respectively connected to the corresponding shear structural columns, and the pressure flow conversion plate is connected to the second guide plate. The transverse air duct is formed between the flow plates;

The extraction chimney is disposed between the pressure flow conversion plate and the second guide plate.

Further, the bottom flow guide assembly further includes an energy storage bin, the energy storage bin is connected to the shear structural column, and the energy storage bin is used to accommodate the power generation structure.

Furthermore, an air inlet is provided between the energy storage bin and the pressure flow conversion plate, and the air inlet is connected to the accommodation space.

Further, the spherical fan assembly includes a fan blade and a rotating shaft, the fan blade is an arc blade, and the fan blade is connected to one end of the rotating shaft;

One end of the rotation shaft away from the fan blade is used to connect with the power generation structure.

Further, the spherical fan assembly further includes a support rod, one end of the support rod is connected to the free end of the fan blade, and the other end is connected to the rotation shaft.

The advantages and positive effects of the present invention are: due to the adoption of the above technical solution, wind power generation becomes more convenient and efficient, effectively avoiding the existing technology of lengthening the length of the fan blades to improve power generation efficiency, and the long fan blades being unsuitable for use. Technical problems of maintenance and transportation; and the invention has the advantages of simple structure, convenient maintenance, low processing cost, and good use effect.

Description of the drawings

Figure 1 is a schematic three-dimensional structural diagram from a first perspective of a wind power generation device provided with a wind collection tower and spherical fan blades provided by the present invention;

Figure 2 is a schematic three-dimensional structural diagram of the wind power generation device provided by the present invention with a wind collection tower and spherical fan blades from a second perspective;

Figure 3 is a schematic front structural view of the wind tower part of the wind power generation device equipped with a wind tower and spherical fan blades provided by the present invention;

Figure 4 is a schematic three-dimensional structural diagram of the wind tower part of the wind power generation device provided with the wind tower and spherical fan blades provided by the present invention.

In the picture:

1-top guide ring; 2-guide support component; 21-shear structural column; 22-first guide plate; 3-bottom guide component; 31-second guide plate; 32-extraction chimney; 33-pressure flow conversion plate; 34-air inlet; 35-energy storage bin; 4-spherical fan assembly; 41-fan blades; 42-rotating shaft; 43-support rod.

Detailed ways

As shown in Figure 1 or Figure 2, the present invention provides a wind power generation device equipped with a wind collecting tower and spherical fan blades, including a top guide ring 1, a guide support assembly 2, a bottom guide assembly 3 and a spherical fan. Component 4, the top guide ring 1 is connected to the bottom guide component 3 through the guide support component 2, and the top guide ring 1, the guide support component 2 and the bottom guide component 3 define an accommodation space; the guide support The component 2 is provided with a longitudinal air duct, and the longitudinal air duct is used to guide the flowing air to the accommodation space; the bottom guide component 3 is provided with a transverse air duct, and the transverse air duct is used to guide the flowing air to the accommodation space. ; The spherical fan assembly 4 is located in the accommodation space, and the spherical fan assembly 4 is used to connect to an external power generation structure.

Specifically: during assembly, the four flow guide support components 2 are connected to the bottom surface of the top guide ring 1, and the flow guide support components 2 are spaced apart; and the end of the flow guide support component 2 away from the top guide ring 1 is connected to the bottom surface of the top guide ring 1. The bottom guide assembly 3 is connected, and an accommodation space for accommodating the spherical fan assembly 4 is enclosed between the top guide ring 1, the guide support assembly 2 and the bottom guide assembly 3, and the spherical fan assembly 4 passes through the guide assembly. The wind blown in from the longitudinal air duct of the flow support assembly 2 and the transverse air duct of the bottom flow guide assembly 3 drives it to rotate, thereby converting wind energy into mechanical energy, and then converting the mechanical energy into electrical energy through the external power generation structure.

In an optional implementation of this embodiment, referring to Figure 2, the flow guide support assembly 2 includes a shear structural column 21 and a first guide plate 22 located on both sides of the shear structural column 21. The shear structural column 21 and its two The longitudinal air duct is formed between the first guide plates 22 on both sides, and one end of the shear structural column 21 is connected to the top guide ring 1, and the other end is connected to the bottom guide assembly 2; one end of the shear structural column 21 Connect to the top guide ring 1, and the other end to the bottom guide component 3.

Specifically: the longitudinal air duct is formed between the shear structural column 21 and the first guide plates 22 on both sides, and one end of the shear structural column 21 is connected to the top guide ring 1, and the other end is connected to the bottom guide assembly. 2 connection; one end of the shear structural column 21 is connected to the top guide ring 1, and the other end is connected to the bottom guide component 3. Preferably, first deflectors 22 are symmetrically provided on both sides of each shear structural column 21, and both shear structural columns 21 and first deflectors 22 are arranged vertically, and the first deflector 22 and The spacing between the shear structural columns 21 becomes farther and farther away from the accommodation space. That is, after the wind passes through this gap, the spacing distance becomes narrower and narrower, causing the wind speed to increase, which in turn causes the rotation speed of the spherical fan assembly 4 to increase. .

In an optional implementation of this embodiment, referring to FIG. 1 or FIG. 2 , four groups of flow guide support assemblies 2 are provided, and adjacent flow guide support assemblies 2 are spaced apart and surrounded by accommodating spaces.

Specifically: four air guide support assemblies 2 are distributed opposite each other, and the side of each air guide support assembly 2 facing the accommodation space is set to be arc-shaped to match the shape of the spherical fan assembly 4 .

Further, referring to Figure 3 or Figure 4, the bottom air guide assembly 3 includes a second air guide plate 31, and both ends of the second air guide plate 31 are respectively connected to the adjacent air guide support assembly 2; the second air guide plate 31 It is the same as directing the air flowing through the accommodation space.

Specifically: there are four second guide plates 31, and the two ends of the four second guide plates 31 are respectively connected to the adjacent shear structural columns 21, and one end of the second guide plate 31 faces the accommodation space. It is tilted upward so that the wind can blow into the accommodation space through the second deflector 31 .

Further, referring to FIG. 3 , the bottom diversion assembly 3 also includes a plurality of extraction chimneys 32 , and the plurality of extraction chimneys 32 are connected in sequence between adjacent shear structural columns 12 , located at The extraction chimneys 32 at both ends are connected to corresponding shear structural columns 12 respectively.

Specifically: there are multiple extraction chimneys 32, and the multiple extraction chimneys 32 are connected in sequence between adjacent shear structural columns 12, and the extraction chimneys 32 at both ends are respectively connected to the corresponding shear structural columns 12. ; Preferably, multiple suction chimneys 32 are connected in sequence, and the suction chimneys 32 are used to blow wind into the accommodation space.

Further, referring to Figure 3, the bottom flow guide assembly 3 also includes a pressure flow conversion plate 33. Both ends of the pressure flow conversion plate 33 are connected to the corresponding shear structural columns 12, and the pressure flow conversion plate 33 is connected to the second flow guide plate 33. A transverse air channel is formed between the plates 31; the suction chimney 32 is provided between the pressure flow conversion plate 33 and the second guide plate 31.

Specifically: both ends of the pressure flow conversion plate 33 are respectively connected to the corresponding shear structural columns 12, and a transverse air channel is formed between the pressure flow conversion plate 33 and the second guide plate 31; the suction chimney 32 is provided with a pressure flow Between the conversion plate 33 and the second guide plate 31; preferably, there is a gap between the pressure flow conversion plate 33 and the second guide plate 31, and the outside wind enters through this gap and blows to the accommodation space.

In an optional implementation of this embodiment, referring to Figure 3, the bottom flow guide assembly 3 also includes an energy storage bin 35. The energy storage bin 35 is connected to the shear structural column 12, and the energy storage bin 35 is used to accommodate the power generation structure.

Specifically: the energy storage bin 35 is connected to the shear structural column 12, and the energy storage bin 35 is used to accommodate the power generation structure; preferably, the energy storage bin 35 is connected to the bottom of the shear structural column 12, and the energy storage bin 35 is used for accommodating the power generation structure. For setting up power generation equipment.

Further, referring to FIG. 3 , an air inlet 34 is provided between the energy storage bin 35 and the pressure flow conversion plate 33 , and the air inlet 34 is connected to the accommodation space.

Specifically: an air inlet 34 is provided between the energy storage bin 35 and the pressure flow conversion plate 33, and the air inlet 34 is connected with the accommodation space; preferably, the air inlet 34 is used to allow wind to enter and pass through the pressure flow conversion plate. 33 The surrounding passage enters the accommodation space.

In an optional implementation of this embodiment, referring to Figure 1 or Figure 2, the spherical fan assembly 4 includes a fan blade 41 and a rotating shaft 42. The fan blade 41 is an arc-shaped blade, and the fan blade 41 is connected to one end of the rotating shaft 42; The end of the rotating shaft 42 away from the fan blades 41 is used to connect with the power generation structure.

Specifically: there are two groups of spherical fan assemblies 4, and each group is provided with three arc-shaped fan blades 41. The spherical fan assemblies 4 on both sides form a spherical shape and are arranged in the accommodation space, and the three fan blades 41 are arranged in a spherical shape. One point is connected to the end of the rotating shaft 42, and the other end of the rotating shaft 42 is used to connect to the power generation structure. When in use, the fan blades 41 drive the rotating shaft 42 to rotate.

Further, referring to FIG. 3 , the spherical fan assembly 4 also includes a support rod 43 , one end of the support rod 43 is connected to the free end of the fan blade 41 , and the other end is connected to the rotation shaft 42 .

Specifically: one end of the support rod 43 is connected to the free end of the fan blade 41, and the other end is connected to the rotation shaft 42; preferably, the free end of each of the three fan blades 41 is connected to the rotation shaft 42 through the support rod 43. To increase the stability of the fan blade 41 .

During use, the air sucked up by the suction chimney 32 is sucked into the accommodation space, and the pressure flow conversion plate 33 draws the high wind pressure areas of the side walls of the suction chimney 32 into the accommodation space. area, which increases the flow rate of the accommodation space. The negative pressure area on the leeward side also creates suction to accelerate the wind in the accommodation space.

And when the incoming wind blows towards the wind collection tower at an angle of 45 degrees, the shear structural columns 21 and the first deflector 22 at the four positions have different functions according to Bernoulli's principle.

The shear structural columns 21 and the first deflector 22 close to the incoming wind side use the narrow tube effect to accelerate the incoming wind, and the increased wind speed utilizes the pressure difference of the incoming wind from both sides to increase the wind speed.

The shear structural columns 21 on both sides and the first deflector 22 form a wind shielding surface and negative pressure areas on both sides of the back. The outflow wind speed in the core area is accelerated. The shear structural column 21 and the first deflector 22 away from the wind side form a small air inlet and a large air outlet, which reduces the area of the air suction port in the negative pressure area and is conducive to the acceleration of wind in the core area.

The fan blade 41 is a mirror image of two hemispheric fan blades forming a spherical fan blade. The two hemispheric fan blades realize the incoming wind reversal through the reverse horizontal axis to improve the wind receiving efficiency; at the same time, the formula for the surface area of the sphere is s=4πr ^2. The area of the sphere is four times the area of the circle with the same radius. At the same radius, the wind receiving area increases Large, stability is improved. The spherical shape directly determines that the fan blade 41 can absorb wind force in all directions.

An embodiment of the present invention has been described in detail above, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the implementation scope of the present invention. All equivalent changes and improvements made within the scope of the present invention shall still fall within the scope of the patent of the present invention.

Claims (10)

1. A wind power generation device provided with a wind collecting tower and spherical fan blades, characterized by: including a top guide ring (1), a guide support assembly (2), a bottom guide assembly (3) and a spherical fan assembly (4), the top flow guide ring (1) is connected to the bottom flow guide assembly (3) through the flow guide support assembly (2), and the top flow guide ring (1), the flow guide assembly (3) The support component (2) and the bottom flow guide component (3) define an accommodation space; The flow guide support assembly (2) is provided with a longitudinal air duct, and the longitudinal air duct is used to guide the flowing air to the accommodation space; The bottom air guide assembly (3) is provided with a transverse air duct, and the transverse air duct is used to guide the flowing air to the accommodation space; The spherical fan assembly (4) is located in the accommodation space, and the spherical fan assembly (4) is used to connect to an external power generation structure. 2. The wind power generation device provided with a wind collecting tower and spherical fan blades according to claim 1, characterized in that: the diversion support assembly (2) includes a shear structural column (21) and a The first deflectors (22) on both sides of the force structural column (21), and the longitudinal air duct is formed between the shear structural column (21) and the first deflectors (22) on both sides, And one end of the shear structural column (21) is connected to the top guide ring (1), and the other end is connected to the bottom guide assembly (3); One end of the shear structural column (21) is connected to the top guide ring (1), and the other end is connected to the bottom guide assembly (3). 3. The wind power generation device provided with a wind collecting tower and spherical fan blades according to any one of claims 1-2, characterized in that: the diversion support assembly (2) is provided with four groups, and the adjacent ones are The flow guide support components (2) are spaced apart and surround the accommodation space. 4. The wind power generation device provided with a wind collecting tower and spherical fan blades according to claim 3, characterized in that: the bottom guide assembly (3) includes a second guide plate (31), and the second guide plate (31) is Both ends of the guide plate (31) are respectively connected to the adjacent guide support components (2); The second guide plate (31) guides the air flowing through the accommodation space. 5. The wind power generation device provided with a wind collecting tower and spherical fan blades according to claim 4, characterized in that: the bottom flow guide assembly (3) also includes a suction chimney (32), and the suction chimney (32) There are multiple extraction chimneys (32) connected in sequence between the adjacent shear structural columns (12), and the extraction chimneys (32) at both ends are connected with each other respectively. The corresponding shear structural columns (12) are connected. 6. The wind power generation device provided with a wind collecting tower and spherical fan blades according to claim 5, characterized in that: the bottom flow guide assembly (3) further includes a pressure flow conversion plate (33), and the pressure flow conversion plate (33) Both ends of the conversion plate (33) are respectively connected to the corresponding shear structural columns (12), and the transverse direction is formed between the pressure flow conversion plate (33) and the second deflector (31). wind channel; The extraction chimney (32) is disposed between the pressure flow conversion plate (33) and the second guide plate (31). 7. The wind power generation device provided with a wind collecting tower and spherical fan blades according to claim 6, characterized in that: the bottom flow guide assembly (3) also includes an energy storage bin (35), and the energy storage bin (35) is connected to the shear structural column (12), and the energy storage bin (35) is used to accommodate the power generation structure. 8. The wind power generation device provided with a wind collecting tower and spherical fan blades according to claim 7, characterized in that: there is an inlet between the energy storage bin (35) and the pressure flow conversion plate (33). Air port (34), the air inlet (34) is connected with the accommodation space. 9. The wind power generation device provided with a wind collecting tower and spherical fan blades according to claim 1, characterized in that: the spherical fan assembly (4) includes a fan blade (41) and a rotating shaft (42), and the The fan blade (41) is an arc-shaped blade, and the fan blade (41) is connected to one end of the rotation shaft (42); One end of the rotation shaft (42) away from the fan blade (41) is used to connect with the power generation structure. 10. The wind power generation device provided with a wind collecting tower and spherical fan blades according to claim 9, characterized in that: the spherical fan assembly (4) further includes a support rod (43), and the support rod (43) One end is connected to the free end of the fan blade (41), and the other end is connected to the rotation shaft (42).