Wind-collecting windmill
The windmill design addresses flow velocity issues by using wind guide vanes, projections, and wake objects to concentrate wind, improving efficiency and power generation.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- GREEN POWER BY ACCELERATED FLOW RES LLC
- Filing Date
- 2023-08-17
- Publication Date
- 2026-06-08
AI Technical Summary
Existing wind collecting type windmills face challenges in effectively increasing internal flow velocity and efficiently directing wind inflow.
The windmill design incorporates wind guide vanes, triangular prism projections, ventilation holes, and wake objects to enhance wind concentration and flow velocity within the turbine body.
The design significantly increases internal flow velocity, allowing the wind turbine to operate efficiently even with wind inflow from various angles, enhancing power generation capabilities.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to a wind collecting type windmill provided with wind guide vanes in front of a wind flow inlet.
Background Art
[0002] Conventionally, a wind collecting type windmill or a wind power generator integrally composed of a front wind cylinder body, an intermediate wind cylinder body in which a propeller type windmill is installed at the center inside, and a rear wind cylinder body has been proposed (for example, Patent Document 1, Non-Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Non-Patent Documents
[0004]
Non-Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, the wind collecting type windmills of Patent Document 1 and Non-Patent Document 1 had problems in the method of wind inflow.
[0006] The present invention has been made in view of such circumstances, and provides a wind collecting type windmill capable of increasing the internal flow velocity.
Means for Solving the Problems
[0007] To solve the above problems, the present invention provides a wind-concentrating wind turbine comprising a wind turbine body composed of a forward winding body, an intermediate winding body in which the wind turbine is installed at the center inside, and a rear winding body, and further comprising at least one pair of wind guide vanes provided on the left and right sides in front of the wind inlet.
[0008] The wind-collecting wind turbine is provided with at least three pairs of wind guide vanes arranged in a longitudinal row from rear to front, and the rear ends of at least one pair of wind guide vanes can be positioned to the side of the forward wind body.
[0009] The aforementioned wind-collecting wind turbine may be equipped with a pair of vertically erected side plates on the rear side of the air outlet.
[0010] In the aforementioned wind-collecting wind turbine, the upper part of the intermediate wind body may be provided with a triangular prism-shaped projection that receives wind on one side, and the upper part of the rear wind body may be provided with a ventilation hole having a long axis parallel to the longitudinal direction.
[0011] In the aforementioned wind-collecting wind turbine, a rectangular wake object having side plates and top and bottom plates may be provided behind the air outlet.
[0012] In the wind-collecting wind turbine, the side cross-sections of the upper and lower plates of the wake object can be made into a triangular shape with a raised center.
[0013] In the aforementioned wind-collecting wind turbine, the side cross-sections of the upper and lower plates of the wake object can be made into a curved shape with a raised center. [Effects of the Invention]
[0014] According to the wind-collecting wind turbine of the present invention, the internal flow velocity can be increased by providing wind guide vanes in front of the airflow inlet. [Brief explanation of the drawing]
[0015] [Figure 1] This is a front perspective view of a wind-collecting wind turbine of a preferred embodiment. [Figure 2] It is a top view of a wind-gathering type windmill of a preferred embodiment. [Figure 3] It is a front perspective view of a wind-gathering type windmill of another preferred embodiment. [Figure 4] It is a top view of a wind-gathering type windmill of another preferred embodiment. [Figure 5] It is a front perspective view of a wind-gathering type windmill provided with protrusions and ventilation holes. [Figure 6] It is a front perspective view of a wind-gathering type windmill provided with a wake body. [Figure 7] It is a front perspective view showing a modified example of the wake body. [Figure 8] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with side plates. [Figure 9] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with side plates. [Figure 10] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with side plates. [Figure 11] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with protrusions and ventilation holes. [Figure 12] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with protrusions and ventilation holes. [Figure 13] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with protrusions and ventilation holes. [Figure 14] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with a wake body. [Figure 15] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with a wake body. [Figure 16] It is a vector contour diagram showing the simulation result of a wind-gathering type windmill provided with a wake body.
Mode for Carrying Out the Invention
[0016] Preferred embodiments of the present invention will be described below with reference to the drawings.
[0017] Figures 1 to 6 show preferred embodiments of the wind-concentrating wind turbine 1 of the present invention. The wind-concentrating wind turbine 1 of this embodiment comprises a wind turbine body 2, the wind turbine body 2 consisting of a forward winding body 3, an intermediate winding body 4 in which a wind turbine (not shown) is installed in the center inside, and a rear winding body 5. The forward winding body 3, intermediate winding body 4, and rear winding body 5 may be integrally constructed.
[0018] The forward-winding fuselage 3, the mid-winding fuselage 4, and the aft-winding fuselage 5 have wind inlet surfaces that are, for example, polygonal (such as a quadrilateral) or circular (such as an ellipse). In the forward-winding fuselage 3, the cross-sectional area of the wind inlet surface gradually decreases from the wind inlet 6 towards the mid-winding fuselage 4. In the aft-winding fuselage 5, the cross-sectional area of the wind inlet surface gradually increases from the mid-winding fuselage 4 towards the wind outlet 7.
[0019] The wind turbine installed inside the wind turbine body 2 can be, for example, a propeller-type wind turbine, but is not particularly limited as long as it has the function of rotating when it receives wind. Wind power is converted into electricity by a generator attached to the rotation shaft of the wind turbine. The wind turbine is preferably installed near the inside of the intermediate wind casing 4, but it may be installed at any position within the wind turbine body 2.
[0020] The forward-winding fuselage 3, the mid-winding fuselage 4, and the aft-winding fuselage 5 can be integrally molded in any way, or they can be manufactured separately and joined together. The forward-winding fuselage 3, the mid-winding fuselage 4, and the aft-winding fuselage 5 are not particularly limited, but can be made of materials such as stainless steel, iron, aluminum, or synthetic resin.
[0021] The wind-concentrating wind turbine 1 is equipped with at least one pair of wind guide vanes 8 on the left and right sides in front of the wind inlet 6. The wind guide vanes 8 have a streamlined cross-section formed from the front toward the wind inlet 6, and when installed, they are curved so that the central part is convex from the outside toward the inside in the left-right direction. The spacing between the pair of wind guide vanes 8 is wider at the front and narrows toward the wind inlet 6, and when viewed from above, the arrangement of the wind guide vanes 8 forms a shape resembling the Japanese character "ハ" (ha) with the front at the bottom and the rear at the top. The spacing between the rear ends of the pair of wind guide vanes 8 should be approximately the same as the width of the wind inlet 6 of the front wind body 3.
[0022] When multiple pairs of wind guide vanes 8 are provided, they are arranged in a vertical line from rear to front. Each wind guide vane 8 should be arranged so that it overlaps with the adjacent wind guide vane 8 when viewed from the side. The rear end of the wind guide vane 8 closest to the airflow inlet 6 should be positioned to the side of the forward wind body 3. In Figures 3 and 4, the wind-collecting wind turbine 1 has three pairs of wind guide vanes 8 arranged in a vertical line from rear to front, and the rear end of the pair of wind guide vanes 8 closest to the airflow inlet 6 is positioned to the side of the forward wind body 3. The number of wind guide vanes 8 is not particularly limited.
[0023] The wind flows through the wind guide vanes 8 into the wind turbine body 2 from the wind inlet 6, causing the wind turbine to rotate. By providing the wind guide vanes 8, the airflow velocity inside the wind turbine body 2 can be increased, and wind coming from the 90° side can also be allowed to flow into the wind turbine body 2.
[0024] The wind-collecting wind turbine 1 may be equipped with a pair of vertically erected side plates 9 on the rear side of the wind outlet 7. The side plates 9 can also be made of the same material as the wind turbine body 2. The side plates 9 may be positioned so as to slightly overlap the sides of the rear wind casing 5.
[0025] The wind-collecting wind turbine 1 may have a triangular prism-shaped projection 10 on the upper part of the intermediate wind body 4 and a ventilation hole 11 on the upper part of the rear wind body 5 having a major axis parallel to the longitudinal direction (Figure 5). The projection 10 can also be made of the same material as the wind turbine body 2. The projection 10 is positioned so that its longitudinal direction is perpendicular to the wind direction, and one side of it receives the wind. This configuration generates suction, suppresses wall separation, and increases the maximum flow velocity inside the wind turbine body 2. The projection 10 can be a shape other than a triangular prism as long as it can receive the wind. The position of the projection 10 may be slightly offset towards the front wind body 3 or the rear wind body 5. The ventilation hole 11 may be, for example, oval-shaped and preferably located near the center of the upper part of the rear wind body 5.
[0026] The wind-collecting wind turbine 1 may have a rectangular wake body 15 with side plates 12 and upper and lower plates 13 and 14 behind the air outlet 7 instead of the side plates 9 (Figures 6, 7(A) to (C)). The area of the opening of the wake body 15 is preferably slightly larger than the cross-sectional area of the air outlet 7. The wake body 15 can also be made of the same material as the wind turbine body 2. The side cross-sections of the upper and lower plates 13 and 14 of the wake body 15 may be triangular with a raised center (Figure 7(B)). The side cross-sections of the upper and lower plates 13 and 14 of the wake body 15 may also be curved with a raised center (Figure 7(C)).
[0027] The simulation results for the wind-collecting type wind turbine 1 of this embodiment will be described.
[0028] Figures 8 to 10 are vector contour diagrams of a wind-collecting wind turbine 1 equipped with wind guide vanes 8 and side plates 9. Figure 8 is a longitudinal section, Figure 9 is a cross section, and Figure 10 is a front view of the intermediate wind body 4. The diagrams show the cases when wind flows in from the front, from a 30° angle, and from a 90° angle. The maximum flow velocity was 8.64 m / s for front inflow and 9.56 m / s for 30° inflow. The average flow velocity was 7.68 m / s for front inflow, 8.48 m / s for 30° inflow, and 3.25 m / s for 90° inflow. It was confirmed that wind can be introduced into the wind turbine body 2 even when the wind inlet 6 is perpendicular to the wind direction. This allows the wind turbine to rotate without rotating the wind turbine body 2 according to the wind direction.
[0029] Figures 11 to 13 are vector contour diagrams of the wind-collecting wind turbine 1 equipped with projections 10 and ventilation holes 11. Figure 11 is a longitudinal section, Figure 12 is a cross section, and Figure 13 is a front view of the intermediate wind body 4. The maximum flow velocity was 9.17 m / s, and the average flow velocity was 8.24 m / s.
[0030] Figures 14 to 16 are vector contour plots of the wind-collecting wind turbine 1 equipped with the wake body 15 shown in Figures 7(A) to (C). Figure 14 is a longitudinal section, Figure 15 is a cross section, and Figure 16 is a front view of the intermediate wind body 4. The maximum flow velocity in (A) was 8.70 m / s, the maximum flow velocity in (B) was 9.42 m / s, the maximum flow velocity in (C) was 8.91 m / s, the average flow velocity in (A) was 7.74 m / s, the average flow velocity in (B) was 8.57 m / s, and the average flow velocity in (C) was 7.96 m / s.
[0031] In summary, it has been confirmed that the wind-collecting type wind turbine 1 of this embodiment can increase the flow velocity inside the wind turbine body 2.
[0032] The wind-collecting wind turbine 1 of this embodiment can be modified in various ways. For example, the shape of the wind turbine body 2 is not particularly limited, as long as it is applicable to a wind-collecting wind turbine. [Explanation of symbols]
[0033] 1 Wind collector type windmill 2. Wind turbine body 3 Forward wind fuselage 4. Intermediate-wind fuselage 5 Rear wind fuselage 6 Wind inlet 7 Air outlet 8 Wind guide feathers 9 Side panels 10 protrusions 11 Ventilation hole 12 Side panels 13 Top plate 14 Lower plate 15 Wake object
Claims
1. A wind-collecting wind turbine comprising a wind turbine body consisting of a forward winding body, an intermediate winding body in which the wind turbine is installed at the center inside, and a rear winding body, The air intake is equipped with at least three pairs of wind guide vanes arranged in a vertical line from rear to front on the left and right sides in front of it, The spacing between the pair of wind guide vanes is wider at the front and narrows towards the airflow inlet, and when viewed from above, the arrangement of the pair of wind guide vanes forms a shape resembling the Japanese character "ハ" (ha) when the front is at the bottom and the rear is at the top. A wind-concentrating wind turbine in which the rear ends of the pair of wind guide vanes closest to the wind inlet are located to the side of the forward wind body.
2. The wind-collecting wind turbine according to claim 1, further comprising a pair of side plates erected vertically on the rear side of the air outlet.
3. The upper part of the aforementioned intermediate wind body is provided with a triangular prism-shaped projection that receives wind on one side, The wind-collecting wind turbine according to claim 1, further comprising a ventilation hole having a long axis parallel to the longitudinal direction at the upper part of the rear winding body.
4. The wind-collecting wind turbine according to claim 1, further comprising a rectangular wake body having side plates and upper and lower plates behind the air outlet.
5. The wind-collecting wind turbine according to claim 4, wherein the side cross-sections of the upper and lower plates of the wake object are triangular in shape with a raised center.
6. The wind-collecting wind turbine according to claim 4, wherein the side cross-sections of the upper and lower plates of the wake body are made into a curved shape with a raised center.