Sail and wire mesh wind turbine

Abstract

To provide a wind power generating device using sails and wire netting, which has a simple structure that can be used for everything from pico power generation to large-scale wind power generation devices, has low installation costs and easy maintenance, and has good power generation efficiency even in weak wind speeds. Solution: A vertical axis wind turbine has wire mesh set up radially around a rotating shaft, with sails in front of the mesh. When the wind catches the sails stick to the mesh, causing the turbine to rotate. When the sails return upwind, they are lifted up by the wind passing through the mesh, reducing air resistance. The larger the area of ​​the sails that catches the wind, the more efficient the power generation of a vertical axis power generation device.

Description

[Technical Field]

[0001] [Background technology]

[0002] Horizontal three-blade turbines are the mainstream for commercial wind turbines, but installation, maintenance, and removal costs are high and burdensome. There are many types of vertical wind turbines, such as pico-generation, but currently no efficient large-scale wind turbines have been put into practical use. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2014-77427 [Patent Document 2] Patent Publication No. 2021-124099 [Patent Document 3] Patent Publication No. 2018-197519 Summary of the Invention [Problem to be solved by the invention]

[0004] In vertical axis power generation, the blades catch the wind and turn the windmill, but while the blades that receive the wind power are very effective, the blades that return upwind create air resistance, which reduces power generation efficiency. Currently, there are no efficient vertical axis power generation systems that can be used on a large or small scale. [Means for solving the problem]

[0005] To provide a wind power generating device using sails and wire netting, which has a simple structure that can be used for commercial purposes from pico power generation to large-scale wind power generating devices, has low installation costs and easy maintenance, and has high power generation efficiency even in weak wind speeds. Vertical axis wind turbines have wire mesh set radially around the rotating shaft, and sails are located in front of the mesh. When the wind catches the sails, they stick to the mesh and cause the wind turbine to rotate. When the sails return upwind, the wind passing through the mesh causes air resistance, lifting them up and reducing air resistance. The larger the area of ​​the sails that catches the wind, the more efficient the power generation of a vertical axis power generator. Its simple structure makes it practical. [Effects of the Invention]

[0006] The structure is simple, the maintenance and installation costs are low, and I think there will be a need for it in the future due to renewable energy. It can be used in a variety of ways to suit your needs, from large to small, making it highly practical. [Brief explanation of the drawings]

[0007] [Figure 1][Drawing 1] External view: A support pillar 1 is installed on the ground, with a rotating shaft 2 attached to the outside of the support pillar 1. A turntable 6 is attached to the rotating shaft 2, and the turntable 7 is fixed by a turntable 7 fixing block 5. The rotating shaft 2 can rotate via bearing blocks 3 and 4. A wire mesh 9 is attached to a wire mesh mounting reinforcement plate 13, radiating from the rotating shaft 2, on top of the turntables 6 and 7. A sail 10 (made of a light, flexible, and strong material) is attached to the wire mesh 9 with a sail mounting plate 11. When the wind hits the sail, it clings to the wire mesh 9, causing the windmill to rotate. When the sail moves upwind, the wind passes through the wire mesh 9, lifting it up, reducing air resistance and increasing power generation efficiency. A sail reinforcement plate 14 (a plate made of carbon fiber or other materials that prevents the sail from flapping) is attached to the sail to reduce the noise it makes. The outer periphery of the turntable 6 is fitted with a weight 15 (which smooths rotation through the flywheel effect), which allows the wind direction and strength to change repeatedly, ensuring stable rotation. Gear 20 is fixed to the rotating shaft 2, and gear 21 is meshed with gear 20. A one-way clutch bearing 22 (a bearing that can only drive in one direction) is attached to the center of gear 21, and the one-way clutch bearing 22 is attached to the rotating shaft of motor 23, which is fixed to motor 23 mounting block 24. Motor 23 is rotated by an external power source to initially drive the windmill and assist until the windmill's rotation stabilizes. Gear 20 is fixed to the rotating shaft 2, and gear 25 is meshed with gear 20. Gear 25 is attached to transmission 26 and generator 27, and is fixed to generator mounting block 24. As the windmill rotates, generator 27 rotates, generating electricity. Drawing 1 shows a two-stage system (turntable 6 and turntable 7) to increase the area exposed to the wind.

[0008] [Figure 2][Drawing 2] View from the AA direction of Drawing 1. Turntable 6 is fixed to rotating shaft 2, and wire mesh mounting reinforcement plates 13 are attached to turntable 6, radiating from rotating shaft 2. Wire mesh 9 is attached to wire mesh mounting reinforcement plate 13, and sails are fixed to wire mesh 9 with sail mounting plates 11. When wind blows in this state, the sails stick to wire mesh 9, causing the windmill to rotate. When the sails return upwind, the wind passes through wire mesh 9, lifting them up and reducing air resistance. Sail 10B shows the lifted state of the sails. A sail reinforcement plate 14 (a plate made of carbon fiber or other material to prevent the sails from flapping) is attached to the tip of the sail to prevent noise and disturbance of the sail. A weight 15 (which creates a flywheel effect and smooths rotation) is attached to the outer wheel of turntable 6. Its outer diameter is as large as possible to ensure stable rotation despite repeated wind strength and weakness, generating centrifugal force and inertia. DETAILED DESCRIPTION OF THE INVENTION

[0009] In places where there are many windy days throughout the year, the size of the vertical axis power generation equipment must be determined based on the average annual wind strength. Sails need to be made of a material that is as light, flexible, and strong as possible, but they can be reinforced with wire mesh. The vertical length of the sail should be short, and increasing the number of sails will stabilize the movement of the sail. Turntables 6, 7, and 16 are covered with wire mesh instead of wood, allowing wind to pass through and increasing the rotation speed of the windmill. [Industrial Applicability]

[0011] The structure is simple, the maintenance and installation costs are low, and it can also be used to subsidize electricity within corporate factories and municipalities. Wind turbines are prone to changing wind direction and strength, making it difficult to achieve stable rotation. To avoid this, a weight (which creates a flywheel effect to smooth rotation) is attached, which creates centrifugal force and inertia, increasing power generation efficiency. This allows for large-scale wind power generation and can also be used for commercial purposes. External power can be used to drive the motor initially or to assist until the rotation of the wind turbine stabilizes, resulting in more stable power generation than conventional wind turbines. [Explanation of symbols]

[0012] 1. Prop 1 2. Rotating shaft 2 3. Bearing block 3 4. Bearing block 4 5. Turntable 7 Mounting Block 5 6. Turntable 6 7. Turntable 7 8. Turntable 8 9. Wire Mesh 9 10. Sail 10 (light, flexible, and strong material) 11. Sail mounting plate 11 12. Wire mesh mounting reinforcement plate 12 13. Wire mesh mounting reinforcement plate 13 14. Sail reinforcement plate 14 (a plate to prevent the sail from flapping, made of carbon fiber, etc.) 15. Weight 15 (Uses a flywheel effect to smooth rotation) 16. Turntable 16 20. Gear 20 21. Gear 21 22. One-way clutch bearing 22 (bearing that can only drive in one direction) 23. Motor 23 24. Motor 23 Mounting Block 24 25. Gear 25 26. Transmission 26 27. Generator 27 28. Generator mounting block 24

Claims

[Claim 1] A support (1) is installed on the foundation of the ground, a rotating shaft (2) is attached to the outside of the support (1), a rotating disk (6) and a rotating disk (7) are attached to the rotating shaft (2), the rotating disk (7) is fixed by a rotating disk 7 mounting block (5), and the rotating shaft (2) can rotate by a bearing block (3) and a bearing block (4). Above the rotating disks (6) and (7), wire mesh mounting reinforcement plates (12) and (13) are attached radially around the rotating shaft (2), and a wire mesh (9) is attached to the wire mesh, to which a sail (10) is attached with a sail mounting plate (11). When the wind hits the sail, the sail sticks to the wire mesh, causing the windmill to rotate. When the sail heads upwind, the wind passes through the wire mesh to reduce air resistance, lifting the sail up. A sail reinforcement plate (14) is attached to the sail to prevent the sail from flapping and to prevent noise from the sail. The outer periphery of the rotating disk (6) is fitted with a weight (15) that smooths the rotation with a flywheel effect, which changes the direction of the wind and smooths out the strength of the wind into a stable rotation, generating centrifugal force and inertia. A gear (20) is fixed to the rotating shaft (2), and a gear (21) meshes with the gear (20). A one-way clutch bearing (22), which is a bearing that can drive in only one direction, is attached to the rotating shaft of a motor (23) at the center of the gear (21). The motor is fixed with a motor (23) mounting block (24), and is rotated by an external power source to initially drive the wind turbine and assist until the rotation of the wind turbine stabilizes. A gear (20) is fixed to the rotating shaft (2), and a gear (25) is meshed with the gear (20), and a transmission (26) and a generator (27) are attached to the gear (25), and the gear is fixed with a generator mounting block (28), and the generator rotates as the windmill rotates, generating electricity. This wind power generation device is made of sails and wire mesh.

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