KR20130132327A - Multi directional wind guide and building wind power generation having the same - Google Patents

Abstract

The present invention relates to a multi-directional wind guide and a building wind generator having the same. Multi-directional wind guide for a building wind power generator according to the present invention is a form of supporting the upper end portion located on the top of the generator rotor with a support pillar formed on the inclined surface of the upper end.
The present invention collects the wind of all the wind direction in the vertical axis rotor of the wind generator and the support pillar and the inclined surface can increase the speed of wind when passing through the rotor to increase the power generation efficiency of the wind generator.
In addition, the present invention can induce the wind in all directions even if the multi-directional wind guide is installed without considering the shape of the building roof, and the light and durable multi-directional wind guide by forming a truss structure inside the multi-directional wind guide It can make and reduce the amount of material used to make wind turbines.

Description

MULTI DIRECTIONAL WIND GUIDE AND BUILDING WIND POWER GENERATION HAVING THE SAME}

The present invention relates to a multi-directional wind guide and a building wind power generator having the same. More specifically, the upper end and the support pillars disposed along the circumference of the rotor located above the rotor of the building wind power generator wind all the wind direction It relates to a multi-directional wind guide to guide the rotor and increase the flow rate to increase the power generation efficiency of the wind generator, and a building wind generator having the same.

Recently, our society is facing problems such as energy depletion and environmental pollution. Accordingly, interest in renewable energy such as wind and solar power is increasing. Among the renewable energy, wind energy is pollution-free and uses unlimited wind, so it has little effect on the environment, and thus it is in the spotlight as clean energy. Therefore, it is widely used as power generation energy generating power mainly in developed countries such as Europe and the United States. Most of the wind power generation is concentrated on the enlargement of the coastal region, which is rich in wind resources, and in recent years, the use of small wind power generation systems is gradually increasing, especially in developed countries.

In the case of buildings, systems that generate electricity by using wind generators are spreading. In particular, houses located along the coast or on islands can generate large amounts of electricity when they generate power from strong sea breezes.

Building wind generators are usually installed on the roof of buildings. It consists of a turbine that produces electrical energy by the rotational force of a number of rotors and is a small wind power generator that is installed on the roof or roof of a building to produce electrical energy. However, these building wind generators require a lot of installation area compared to the power generation efficiency because the rotor of the generator rotates on the horizontal axis. In addition, the device for guiding the wind to the rotor of the generator has a disadvantage that the flow rate, or the device for increasing the flow rate does not guide the wind in all directions. Therefore, it is necessary to develop a multi-directional wind guide that can be installed in a small area, light and durable, and can guide the wind in all directions while maximizing the increase in flow velocity.

The present invention, even if installed without considering the shape of the building roof induces the wind of all wind direction to the rotor of the building wind generator, multi-directional wind can increase the generation efficiency of the building wind generator by increasing the speed of the induced wind It is to provide a guide and a building wind generator having the same.

Another object of the present invention is to provide a multi-directional wind guide and a building wind generator having the same by improving the interior to reduce the amount of materials to be lighter and more durable and manufacturing.

It is another object of the present invention to provide a building wind generator that connects a vertical axis rotor to a multi-directional wind guide and uses both winds in a narrow installation area to the maximum, thereby minimizing the effect of rotation of the rotor on the building. will be.

In order to achieve the above object, the multi-directional wind guide according to an embodiment of the present invention includes an upper end and a support pillar. The upper end is formed of an upper surface, a lower surface, and an inclined surface. The lower surface is located below the upper surface and has a smaller area than the upper surface. The inclined surface is formed in all directions along the side of the upper end to connect the upper surface and the lower surface. The support pillar is located on the inclined surface of the upper end to support the upper end.

The multi-directional wind guide according to an embodiment of the present invention includes an upper end portion formed with inclined surfaces in all directions.

Multi-directional wind guide according to an embodiment of the present invention includes a support pillar having a streamlined or oval cross section.

Multi-directional wind guide according to an embodiment of the present invention includes an upper end formed in the truss structure.

The building wind generator according to the embodiment of the present invention includes a vertical shaft rotor, and both ends of the vertical shaft are fixed to the multidirectional wind guide.

The building wind generator according to the embodiment of the present invention further includes a grid-shaped network along the periphery of the multi-directional wind guide.

According to the present invention, the multi-directional wind guide collects the wind into the rotor of the wind generator and increases the wind speed by passing the rotor to increase the power generation efficiency of the wind generator.

The present invention is provided with a sloped upper end and a streamlined support pillar formed in various directions, even if installed without distinguishing the shape of the roof on which the multi-directional wind guide is installed can be induced to generate wind in all directions.

In addition, the present invention can form a light and durable wind generator by forming the interior of the multi-directional wind guide in a truss structure and can reduce the amount of material required for manufacturing.

In addition, the present invention extends the life of the rotor by the rotor of both ends of the vertical axis is connected to the multi-directional wind guide fixed, power generated by using the wind in all directions, vibration and noise by the rotation of the rotor Minimize the impact on buildings.

1 is a perspective view of a wind generator according to an embodiment of the present invention.
2 is a front view of a wind generator according to an embodiment of the present invention.
3 is a plan view of a multi-directional wind guide according to an embodiment of the present invention.
4 is a view conceptually illustrating a streamline of wind flowing into the rotor by the inclined surface of the upper end of the multi-directional wind guide according to an embodiment of the present invention.
5 is a view conceptually illustrating the streamline of wind flowing into the rotor by the support pillar of the multi-directional wind guide according to an embodiment of the present invention.
6 is a view showing a rotor of a building wind generator according to an embodiment of the present invention.
7 is a view showing a network of a building wind generator according to an embodiment of the present invention.
8 is a diagram showing the flow rate of wind passing through the center of the multi-directional wind guide according to an embodiment of the present invention.
9 is a diagram showing the flow rate of the wind passing through the front left side of the multi-directional wind guide according to an embodiment of the present invention.
10 is a chart showing the flow rate of the wind passing through the front right side of the multi-directional wind guide according to an embodiment of the present invention.
FIG. 11 is a diagram illustrating the flow velocity of wind passing through the front center of the multidirectional wind guide according to the exemplary embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. In addition, detailed descriptions of well-known functions and configurations that may blur the gist of the present invention will be considered. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

1 is a perspective view of a wind generator according to an embodiment of the present invention, Figure 2 is a front view of a wind generator according to an embodiment of the present invention, Figure 3 is a support pillar of a multi-directional wind guide according to an embodiment of the present invention 4 is a view showing the layout, conceptually showing the streamline of the wind flowing into the rotor by the inclined surface of the upper end of the multi-directional wind guide according to an embodiment of the present invention, Figure 5 is a view according to an embodiment of the present invention It is a diagram conceptually showing the streamline of the wind flowing into the rotor by the support pillar of the multi-directional wind guide.

1 and 2, the wind generator 1000 according to the embodiment of the present invention includes a multi-directional wind guide 1100 and a rotor 1200. The multidirectional wind guide 1100 has an upper end 1110 and a support pillar 1120. The upper end 1110 is formed with a streamlined upper surface 1111 and a lower surface 1112 positioned below the upper surface 1111 and having a smaller area than the upper surface 1111. In addition, the inclined surface 1113 connecting the upper surface 1111 and the lower surface 1112 is formed on the side of the upper end 1110 in all directions. A support pillar 1120 is formed on the inclined surface 1113 to support the upper end 1110. The upper end 1110 is positioned above the rotor 1200 of the building wind generator 1000, and the support pillar 1120 of the rotor 1200 is disposed at a predetermined angle at a position that does not interfere with the rotation of the rotor 1200. Interposed to face the rotation axis. The support pillar 1120 may be fixed to the roof and the roof of the building, and may further include a lower end fixing the support pillar 1120 and fixing the multi-directional wind guide 1100 to the roof according to circumstances. The rotor 1200 is a vertical axis and rotates by wind in the vicinity of the rotor 1200. When the rotor 1200 rotates, the building wind generator 1000 produces electricity.

The multi-directional wind guide 1100 is formed to support the upper end 1110 by the support pillar 1120, the upper end 1110 may be formed in a streamlined shape does not interfere with the flow of wind and the end is rounded to generate turbulence Can be reduced. The streamlined upper surface 1111 formed as shown in FIG. 2A can reduce vibration noise generated when the building wind generator 1000 is installed by minimizing the generation of turbulence, so that snow or rain flows down the surface. As a result, the load applied to the support pillar 1120 can be reduced. In some cases, as shown in (b) of FIG. 2, the upper surface 1111 may be formed as a flat surface, or the upper surface 1111 may be formed to be concave to coincide with the lower surface 1112, but is not limited thereto. .

As illustrated in FIGS. 2 and 3, the multi-directional wind guide 1100 may include a lower surface 1112 at the upper end 1110 having a minimum area in a range that does not prevent the rotation of the rotor 1200. have. The lower surface 1112 may be formed to be flat in a polygon or a circle, or may be formed to rise in an end thereof, and may also be formed in the shape of a polygonal pyramid or a cone, but is not limited thereto. In the multi-directional wind guide 1100 according to the embodiment of the present invention, since the lower surface 1112 has a quadrangular shape, four inclined surfaces 1113 and four support pillars 1120 are provided. However, when the lower surface 1112 is hexagonal, six inclined surfaces 1113 and six support pillars 1120 may be provided, and as the lower surface 1112 is formed closer to a circle or cone, the inclined surface of the upper portion 1110 ( 1113 may be formed in more directions. When the inclined surface 1113 is formed in all directions, as described below, winds of all wind directions may be guided to the rotor 1200 in a more natural flow.

In the upper end portion 1110 of which the upper surface 1111 is streamlined or flat, the inclined surface 1113 is formed in all directions along the side surface of the upper portion 1110 so that the upper surface 1111 and the lower surface 1112 are connected to each other. In the upper end 1110 in which the upper surface 1111 is concave to coincide with the lower surface 1112, the inclined surface 1113 is formed in all directions along the side surface of the upper end 1110. The inclined surface of the upper end 1110 guides the wind near the multi-directional wind guide 1100 to the rotor 1200 as shown in FIG. 4 and increases the flow velocity.

Since the inclined surface 1113 of the multi-directional wind guide 1100 is provided in various directions, at least two inclined surfaces 1113 may correspond to the shape of the roof even if the multi-directional wind guide 1100 is installed in any direction. The multi-directional wind guide 1100 can be easily installed without considering the shape of the roof.

In addition, the inclined surface 1113 formed in four directions or more may induce wind of all wind directions to the rotor 1200 of the building wind generator 1000. The induced wind has a natural flow, minimizing turbulence and wind losses. When the generation of turbulence is minimized, the vibration noise of the building wind generator 1000 is reduced, and when the loss of wind is minimized, the power generation efficiency of the building wind generator 1000 is increased. The multi-directional wind guide 1100 replaces the upper end 1110, or overlays the molding on the upper surface 1111 of the upper end 1110, or pads the molding on the inclined surface 1113 of the upper end 1110, the inclined surface ( The area and angle of 1113 may be changed. The superimposed or padded molding may have a shape similar to the top surface 1111 or the inclined surface 1113. The inclined surface 1113 may be formed to have an angle that minimizes generation of turbulence and loss of wind power, and may be formed to have an area for maximizing an increase in flow velocity.

As shown in FIG. 2, in order to minimize the load of the upper end 1110 on the support pillar 1120, the multi-directional wind guide 1100 may have a part or all of the upper end 1110 having a truss structure. It is not limited. The upper end portion 1110 having an internally formed truss structure that is formed by combining a single material such as steel in detail is light in weight and excellent in strength, thereby preventing damage to the building wind generator 1000. In addition, due to the characteristics of the structure, the amount of materials used in manufacturing is reduced, and thus it is expected to contribute to the spread of multi-directional wind guides because there is an advantage of manufacturing inexpensive multi-directional wind guides.

The support pillar 1120 supporting the upper end 1110 may be formed to have a streamlined and elliptical cross section as shown in FIG. The support pillar 1120 is positioned below the inclined surface 1113 to support the upper end 1110, but does not interfere with the flow of wind induced by the inclined surface 1113. As shown in FIG. 5, since the support pillar 1120 is arranged to connect the vertices of the upper surface 1111 and the lower surface 1112 to face the rotor 1200, the wind collected by the inclined surface 1113 is rotated. The electrons 1200 are further collected. The wind induced by the inclined surface 1113 and the support column 1120 is further increased in speed and guided to the rotor 1200. The support pillar 1120 may be arranged to minimize the generation of turbulence and loss of wind power, and may be formed to have an area for maximizing an increase in flow velocity.

The support column 1120 may be formed to have a rectangular cross section as shown in FIG. In addition, the support pillar 1120 may be formed in the shape of a polygon or a plate, but is not limited thereto. The support pillar 1120 may have a truss structure and a node structure, and may fill the inside of the support pillar 1120 with cement or a metal material, but is not limited thereto.

A lower end 1130 having an inclined surface similar to the inclined surface 1113 of the upper end 1110 may be provided below the support pillar 1120. Like the inclined surface 1113 of the upper end 1110, the inclined surface of the lower end 1130 may induce wind in the vicinity of the multi-directional wind guide 1100 in all directions, and increase the speed of the induced wind. In addition, the lower portion 1130 may have a certain groove so that the multi-directional wind guide 1100 can be easily installed on the roof of the building.

6 is a view showing a rotor 1200 of a building wind generator 1000 according to an embodiment of the present invention.

As shown in FIG. 6, the rotor 1200 may be a vertical axis rotor. When using a vertical rotor, unlike when using a horizontal rotor, the wind induced by the rotor 1200 can be generated by using all irrespective of the wind direction, and occupies a small installation area. The shape of the vertical rotor 1200 is not limited to the shape shown in FIG. 6, and may be formed in various shapes to receive a large rotational torque due to wind. The rotor 1200 may be positioned at the lower end of the upper end of the multi-directional wind guide 1000 as shown in FIG. 1, and may be spaced apart from the upper end to facilitate rotation. In addition, the rotor 1200 may be fixed to both ends of the shaft is connected to the lower surface 1112 and the lower portion 1130 of the upper end 1110 of the multi-directional wind guide 1100, so as not to be affected by the flow disturbance and interference It is preferable to connect one rotor 1200 to one multi-directional wind guide 1100. The rotor 1200 fixed at both ends may minimize the effect of vibration and noise caused by the rotation on the building. In addition, since the rotor 1200 is stably supported, the rotor 1200 can be enlarged in size, and the durability of the rotor 1200 becomes stronger.

Building wind generator 1000 according to an embodiment of the present invention includes a multi-directional wind guide and a rotor, the multi-directional wind guide may be a multi-directional wind guide 1100 according to an embodiment of the present invention, the rotor It may be a rotor 1200 according to an embodiment of the present invention.

Building wind generator 1000 according to an embodiment of the present invention is simply assembled to have a module form made integrally with all or part of the multi-directional wind guide 1100 including the upper end 1110 and the support pillar 1120. I can make it.

7 is a view showing a network for protecting the rotor of the building wind generator according to an embodiment of the present invention.

As shown in FIG. 7, the mesh 1300 provided along the outer side of the multi-directional wind guide 1100 may be a grid pattern, and may be formed to surround the support pillar 1120 as illustrated in FIG. As shown in 7 (b) it may be formed to surround the support pillar 1120. The net 1300 may be formed so as not to interfere with the rotation of the rotor 1200 while surrounding the part or all of the rotor 1200 spaced apart from the rotor 1200. The network 1300 may protect the rotor 1200 of the building wind generator 1000 from foreign matter and may be installed to minimize the loss of wind induced by the rotor 1200.

8 to 11 are diagrams showing the flow rate of the wind passing through the multi-directional wind guide according to an embodiment of the present invention.

The flow velocity was determined by analyzing the fluid vector according to the shape of the support column 1120 using a simplified model of the multi-directional wind guide 1100. The support pillar 1120 has four shapes of streamlined, rectangular, hexagonal and circular, and the model used in the analysis is shown in Table 1 below.

Streamlined Square hexagon circle

The fluid vector analysis was performed by inputting the model shown in Table 1 to FLUENT, which is CFD software of ANSYS, and the center, front left, The velocity values of the fluid vectors at the front right and front centers were read. Here, the center is a space in which the rotor 1200 is located, and the front left, front right and front centers are located between each front and support pillars 1120 of the left and right support pillars 1120 when the rotor 1200 is viewed. Says space. The inlet wind speed (wind speed input value) was 5.653 m / s in the wind direction range of 0 to 45 degrees under the standard atmospheric pressure air density condition, and the results are shown in Table 2 below.

Flow rate measuring place 0 ° 5 ° 10 ° 15 ° 20 ° 25 ° 30 ° 35 ° 40 ° 45 ° Streamlined Center 6.456 6.321 6.25 5.92 5.673 5.39 5.248 5.14 5.22 5.011 Front left 6.504 6.346 6.196 6.188 5.804 5.732 5.559 5.416 5.355 5.401 Front right 6.571 6.35 6.179 5.962 5.645 5.589 5.513 5.333 5.3 5.357 Front center 6.475 6.356 6.197 5.995 5.714 5.441 5.366 4.963 4.873 4.671 Square Center 6.992 7.18 6.785 6.526 6.298 5.854 5.766 5.63 5.478 5.326 Front left 6.763 6.455 6.37 6.095 6.027 5.926 5.756 5.757 5.702 5.65 Front right 6.419 6.342 6.087 5.992 5.624 5.51 5.231 4.998 4.582 4.052 Front center 6.873 6.519 6.16 6.107 5.781 5.574 5.456 5.385 5.309 5.106 hexagon Center 6.592 6.212 6.205 6.098 5.844 5.617 5.366 5.213 4.991 4.783 Front left 6.614 6.534 6.298 6.142 5.894 5.786 5.518 5.465 5.361 5.325 Front right 6.452 6.112 6.024 5.68 5.417 4.983 4.597 4.084 3.52 3.069 Front center 6.382 6.215 6.017 5.801 5.372 5.315 5.165 5.178 4.963 4.92 circle Center 6.57 6.35 6.207 6.155 6.175 6.021 5.762 5.52 5.184 5.069 Front left 6.23 6.258 6.24 6.23 6.196 6.08 5.941 5.776 5.851 5.549 Front right 6.355 6.088 5.953 5.848 5.719 5.649 5.639 4.384 4.038 3.634 Front center 6.244 6.125 6.222 5.907 5.814 5.595 5.602 5.549 5.581 5.312

As shown in Table 2, the flow velocity near the support column is generally increased compared to the inlet wind speed of 5.653 m / s. 8 to 11, FIG. 8 illustrates the flow velocity of the center of the wind guide according to each support pillar cross-sectional shape, FIG. 9 is the front left side of the wind guide, FIG. 10 is the front right side, and FIG. The flow rate is shown for each support column cross-sectional shape. 9 to 11, the flow velocity near the support pillar is generally increased compared to the inlet wind speed, and in the case of a wind guide having a hexagon or a circular cross section of the support pillar, the wind speed tends to decrease rapidly according to the wind direction range. Therefore, it can be seen that the shape of the most preferable cross section is streamlined or rectangular.

Table 3 is to calculate the flow rate increase effect based on the data in Table 2. The flow rate increase effect is considered to be an increase in flow rate if it is greater than 1 when each flow rate data is divided by the inlet wind speed value.

Flow rate measuring place 0 ° 5 ° 10 ° 15 ° 20 ° 25 ° 30 ° 35 ° 40 ° 45 ° Streamlined Center 1.14 1.12 1.11 1.05 1.00 0.95 0.93 0.91 0.92 0.89 Front left 1.15 1.12 1.10 1.09 1.03 1.01 0.98 0.96 0.95 0.96 Front right 1.16 1.12 1.09 1.05 1.00 0.99 0.98 0.94 0.94 0.95 Front center 1.15 1.12 1.10 1.06 1.01 0.96 0.95 0.88 0.86 0.83 Square Center 1.24 1.27 1.20 1.15 1.11 1.04 1.02 1.00 0.97 0.94 Front left 1.20 1.14 1.13 1.08 1.07 1.05 1.02 1.02 1.01 1.00 Front right 1.14 1.12 1.08 1.06 0.99 0.97 0.93 0.88 0.81 0.72 Front center 1.22 1.15 1.09 1.08 1.02 0.99 0.97 0.95 0.94 0.90 hexagon Center 1.17 1.10 1.10 1.08 1.03 0.99 0.95 0.92 0.88 0.85 Front left 1.17 1.16 1.11 1.09 1.04 1.02 0.98 0.97 0.95 0.94 Front right 1.14 1.08 1.07 1.00 0.96 0.88 0.81 0.72 0.62 0.54 Front center 1.13 1.10 1.06 1.03 0.95 0.94 0.91 0.92 0.88 0.87 circle Center 1.16 1.12 1.10 1.09 1.09 1.07 1.02 0.98 0.92 0.90 Front left 1.10 1.11 1.10 1.10 1.10 1.08 1.05 1.02 1.04 0.98 Front right 1.12 1.08 1.05 1.03 1.01 1.00 1.00 0.78 0.71 0.64 Front center 1.10 1.08 1.10 1.04 1.03 0.99 0.99 0.98 0.99 0.94

As shown in Table 3, the cross section of the support pillar is -20 to 20 degrees in the case of a wind guide having a streamlined or rectangular shape, and the cross section of the support pillar is -15 to 15 degrees in the case of a wind guide having a hexagonal cross section of the support pillar. In the case of the circular wind guide, the wind speed increases in the range of -25 to 25 degrees. Therefore, the cross-sectional shape of the support column in the multi-directional wind guide according to the present invention is most preferably streamlined or rectangular, and in this case, the increase effect is excellent in the wind direction range of -20 to 20 degrees.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate description of the present invention and to facilitate understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

1000: Building Wind Generator 1100: Multi-Directional Wind Guide
1110: upper portion 1111: upper surface
1112: lower surface 1113: inclined surface
1120: support pillar 1130: lower portion
1200: Rotor 1300: Mans

Claims (7)

An upper surface having an upper surface, a lower surface positioned below the upper surface and having a smaller area than the upper surface, and having an inclined surface connecting the upper surface and the lower surface; and
And a support column positioned on the inclined surface of the upper end to support the upper end. The method of claim 1,
The inclined surface of the upper end is a multi-directional wind guide, characterized in that formed in all directions. The method of claim 1,
Multi-directional wind guide, characterized in that the cross section of the support pillar is streamlined or oval. The method of claim 1,
Multi-directional wind guide, characterized in that the inside of the upper end is formed of a truss structure. Multi-directional wind guide according to any one of claims 1 to 4; And
And a rotor located at the bottom of the upper end. The method of claim 5,
The rotor is a vertical axis, the vertical axis building wind generator, characterized in that both ends are fixed to the multi-directional wind guide. The method of claim 5,
Building wind generator further comprises a grid-shaped net provided along the periphery of the multi-directional wind guide.

Images