Vertical turbine

Abstract

A vertical water turbine with its upright direction perpendicular to the water surface, comprising a rotating shaft and multiple blade assemblies. Each blade assembly is connected to the rotating shaft through a support frame, enabling the shaft to rotate under water flow. Each assembly includes two fixed blades and one movable blade. The movable blade features a thick connection section and a narrower flow-directing section, reducing the end contact area with water, thereby minimizing water resistance and vortex formation. The present application enhances energy output efficiency, reduces operational energy consumption, and achieves efficient energy conversion.

Description

Technical Field

[0001] This invention relates to a hinged water turbine, and more particularly to a vertical hinged water turbine that can effectively reduce water flow resistance, thereby reducing energy loss. Prior Technology

[0002] Traditional water turbine designs often rely on fixed blades. When water flows over these blades, significant resistance is generated, leading to energy loss. This resistance is particularly pronounced in environments with low flow velocities or frequent changes in flow direction. This not only reduces energy conversion efficiency but also accelerates blade wear and increases maintenance costs.

[0003] Therefore, how to further reduce the resistance of water turbines in low-velocity and frequently changing water flow environments, thereby improving energy conversion efficiency, reducing blade wear, and lowering manufacturing and maintenance costs, has become a problem to be solved. Summary of the Invention

[0004] Based on the above deficiencies, the purpose of this invention is to provide a vertical hinged water turbine that can effectively reduce water flow resistance, thereby reducing energy loss.

[0005] According to the present invention, a vertical water turbine is provided, comprising a main body, the rotation direction of which is perpendicular to a water surface, the main body including a rotating shaft and a plurality of impeller structures, each impeller structure being connected to the rotating shaft through an impeller support frame, characterized in that: each impeller structure includes a movable blade mounted on an impeller shaft, the movable blade having a connecting portion and a guide portion, the width of the connecting portion being greater than the width of the guide portion, when the main body rotates, the movable blades located within a first rotation range rotate to a first position; the movable blades located within a second rotation range rotate to a second position.

[0006] Each blade support frame has two support rods, one end of which is equipped with a blade shaft, and the other end of which is connected to the shaft. Each blade structure also includes two fixed blades respectively disposed on one side of the two support rods.

[0007] The thickness of the active blade gradually decreases from the connecting part to the guide part.

[0008] The thickness of the connecting part is between 13 cm and 18 cm.

[0009] It also includes an output gear set connected to a rotating shaft.

[0010] The output gear set is connected to the rotating shaft via a transmission chain.

[0011] It also has a buoyancy device connected to the rotating shaft.

[0012] The starting point is the point where the vertical direction intersects the water surface. The first rotation range is when the rotating shaft rotates from 0 degrees to 135 degrees and from 337.5 degrees to 360 degrees, the movable blade is located in the first position.

[0013] The second rotation range is when the rotating shaft rotates from 157.5 degrees to 292.5 degrees, at which point the movable blade is in the second position.

[0014] When the movable blade rotates to the first position, the angle between the movable blade and the impeller support frame is between 85 degrees and 95 degrees; when the movable blade rotates to the second position, the angle between the movable blade and the impeller support frame is between 185 degrees and 200 degrees. Simple Explanation of the Diagram

[0015] Figure 1 is a schematic diagram of an embodiment of the present invention.

[0016] Figure 2A is a front view of the impeller structure according to an embodiment of the present invention.

[0017] Figure 2B is a side view of the blade structure according to an embodiment of the present invention.

[0018] Figure 3A is a schematic diagram of the second embodiment of the present invention.

[0019] Figure 3B is a side view of the second embodiment of the present invention. Implementation

[0020] To clearly illustrate the specific embodiments, structure, and effects achieved by the present invention, embodiments are provided and described below with reference to figures:

[0021] Please refer to Figures 1, 2A, and 2B, which illustrate a vertical water turbine, a type of hinged turbine that utilizes gravity to allow the movable blades 154 to rotate relative to each other. This vertical water turbine has a main body 10, whose vertical direction Y is perpendicular to a water surface W. The main body 10 includes a wheel frame 11, a rotating shaft 13, and a plurality of blade structures 15. Each blade structure 15 is connected to the rotating shaft 13 through a blade support frame, driving the rotating shaft 13 to rotate under the impingement of water flow. The main body 10 is fixed to the ground L by a fixing frame 21. The rotating shaft 13 is parallel to the water surface W. The wheel frame 11 is welded and fixed to the main body 10.

[0022] The vertical turbine also has an output gear set 17 connected to a rotating shaft 13. The output gear set 17 transmits the rotational kinetic energy of the vertical turbine to a generator (not shown) to achieve energy conversion.

[0023] Each impeller support frame has two support rods 151, one end of which is equipped with an impeller shaft 152, and the other end of which is connected to the rotating shaft 13. Each impeller structure 15 includes two fixed blades 153 and one movable blade 154. The two fixed blades 153 are respectively installed on one side of the two support rods 151, and the movable blade 154 is installed on the impeller shaft 152 and can rotate between different positions.

[0024] In an embodiment of the present invention, the movable blade 154 has a connecting portion 1541 and a guide portion 1542. The width H1 of the connecting portion 1541 is greater than the width H2 of the guide portion 1542, thereby reducing the contact area between the end of the movable blade 154 and the water flow, thus reducing water flow resistance and reducing the generation of eddies. This not only improves the energy output efficiency of the turbine but also reduces the energy consumption of the equipment operation, achieving more efficient energy conversion. In addition, the fixed blade 153 can increase the water interception area, further optimize the distribution and guidance of water flow, thereby improving the stability and operating efficiency of the turbine.

[0025] To further explain, the thickness T1 of the connecting portion 1541 of the movable blade 154 is greater than the thickness T2 of the guide portion 1542, and the thickness of the movable blade 154 gradually decreases from the connecting portion 1541 to the guide portion 1542. The thickness T1 of the connecting portion 1541 enhances the strength of the blade, preventing deformation or damage when impacted by water flow, and ensuring stable operation of the movable blade 154 in high-speed water flow. In embodiments of the present invention, the thickness T1 of the connecting portion 1541 is between 13 cm and 18 cm, achieving an optimal balance between strength and efficiency.

[0026] To further explain, when the water flow propels the impeller structure 15, it causes the rotating shaft 13 to rotate counterclockwise 360 ​​degrees. Under the influence of gravity, the movable blades 154 rotate around the impeller shaft 152 at different positions. When the main body 10 rotates to face away from the water surface, the movable blades 154 naturally rotate to a first position under the influence of gravity. At this time, the angle between the movable blades 154 and the support rod 151 of the impeller support frame is between 85 degrees and 95 degrees. In the first position, the movable blades 154 are in a folded state to reduce the rotational resistance of the main body 10. When the main body 10 rotates to face closer to the water surface, the movable blades 154 naturally rotate to a second position under the influence of gravity. At this time, the angle between the movable blades 154 and the support rod 151 of the impeller support frame is between 185 degrees and 200 degrees. In the second position, the movable blades 154 are in an unfolded state to increase the contact area with the water flow and maximize the propulsion efficiency.

[0027] Furthermore, when the movable blade 154 is in the second position, its tip abuts against the fixed blade 153 to provide additional support and stability, preventing the movable blade 154 from shifting under high-speed rotation or water flow impact, thus further improving overall operational stability and efficiency. The cooperation between the fixed blade 153 and the movable blade 154 further enhances the durability and efficiency of the overall structure. This ensures that the turbine can operate stably and maintain high-efficiency energy conversion under different water flow speeds and flow rates.

[0028] In an embodiment of the present invention, the starting point (0-degree reference) is the intersection of the vertical direction Y and the water surface W. Taking the rotation shaft 13 rotating counterclockwise 360 ​​degrees as an example, when the rotation shaft 13 rotates from 0 degrees to 135 degrees and from 337.5 degrees to 360 degrees, the movable blade 154 is located in the first position; when the rotation shaft 13 rotates from 157.5 degrees to 292.5 degrees, the movable blade 154 is located in the second position. This ensures that the blade is adjusted to the optimal angle under different conditions to reduce energy loss, thereby improving the working efficiency of the turbine.

[0029] Please refer to Figures 3A and 3B for a second embodiment of the present invention. In this second embodiment, a buoyancy device 30 is connected to the rotating shaft 13, and the output gear set 17 is connected to the rotating shaft 13 via a transmission chain 171. The buoyancy device 30 allows the main body 10 to automatically adjust the water intake depth according to water level changes, enabling the turbine to operate stably even when water level fluctuations are large, without affecting the output of rotational kinetic energy and power generation efficiency, thus maintaining operational stability. In the second embodiment, the output gear set 17 is fixed to the ground L via a fixing frame 21, and the buoyancy device 30 can be a float or other buoyancy support, but is not limited to these.

[0030] The vertical turbine blades 154 of this invention have a wider connecting portion 1541 and a narrower guide portion 1542, which improves the structural strength of the blades, effectively resists water flow impact, and prevents deformation or damage. The narrow design of the guide portion 1542 reduces the contact area with the water flow, thereby reducing water flow resistance and eddy current formation, and improving energy conversion efficiency. Furthermore, with the help of the buoyancy device 30, the turbine can operate stably and efficiently and generate electricity under different water level conditions.

[0031] 10: Main Body 11: Wheel rim 13: Rotating shaft 15: Blade Structure 151: Support rod 152: Impeller Shaft 153: Fixed blades 154: Movable blades 1541: Connecting part 1542: Flow guide 17: Output gear set 171: Drive chain 21: Fixture 30: Buoyancy device H1, H2: Width T1, T2: Thickness W: Water surface L: Ground Y: Upright direction

Claims

1. A vertical water turbine, comprising a main body, the vertical direction of which is perpendicular to a water surface, the main body including a rotating shaft and a plurality of impeller structures, each impeller structure being connected to the rotating shaft through an impeller support frame, characterized in that: each impeller structure includes a movable blade mounted on an impeller shaft, the movable blade having a connecting portion and a guide portion, the width of the connecting portion being greater than the width of the guide portion; when the main body rotates, the movable blades located within a first rotation range rotate to a first position, at which position the movable blade is in a folded state; the movable blades located within a second rotation range rotate to a second position, at which position the movable blade is in an unfolded state.

2. The vertical turbine as described in claim 1, wherein each blade support frame has two support rods, one end of which is fitted with a blade shaft and the other end is connected to the shaft, and each blade structure further includes two fixed blades respectively disposed on one side of the two support rods.

3. The vertical turbine as described in claim 1, wherein the thickness of the movable blade gradually decreases from the connecting portion to the flow guide portion.

4. The vertical turbine as described in claim 1, wherein the thickness of the connection is between 13 cm and 18 cm.

5. A vertical turbine as described in any one of claims 1 to 4, further comprising an output gear set connected to the rotating shaft.

6. The vertical turbine as described in claim 5, wherein the output gear set is connected to the rotating shaft via a drive chain.

7. The vertical turbine as described in claim 5, further comprising a buoyancy device connected to the rotating shaft.

8. The vertical turbine as described in claim 5, wherein the first rotation range is defined as the point where the vertical direction intersects the water surface as the starting point, and the movable blade is located in the first position when the rotating shaft rotates from 0 degrees to 135 degrees and from 337.5 degrees to 360 degrees.

9. The vertical turbine as described in claim 8, wherein the second rotation range is such that the movable blade is in the second position when the rotating shaft rotates from 157.5 degrees to 292.5 degrees.

10. The vertical turbine as claimed in claim 1, wherein when the movable blade is rotated to the first position, the angle between the movable blade and the blade support is between 85 degrees and 95 degrees; and when the movable blade is rotated to the second position, the angle between the movable blade and the blade support is between 185 degrees and 200 degrees.

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