Lever effect structure of horizontal water turbine

Abstract

The invention discloses a lever effect structure of a horizontal water turbine, and belongs to the field of hydroelectric generation. Comprising a water turbine runner, a V-shaped blade, a nozzle, a base tail water tank, a lever effect drainage plate and an evacuation drainage motor. Compared with the prior art, the nozzle is arranged on one side of the central axis of the water turbine runner, the lever effect drainage plate and the evacuation drainage motor are arranged on the other side of the central axis of the water turbine runner, the lever effect drainage plate can be matched with the evacuation drainage motor to drain residual water flow on the V-shaped blades, and resistance caused by the water flow to rotation of the runner is avoided; the V-shaped blades on one side of the central axis of the water turbine runner where the nozzles are located bear water flow and have large weight, and the V-shaped blades on the other side of the central axis of the water turbine runner form vacuum and are light in weight, so that the lever effect can be formed, and the power generation efficiency of the water turbine is improved.

Description

Technical Field

[0001] This invention belongs to the field of hydropower generation, and specifically relates to a lever effect structure for a horizontal water turbine. Background Technology

[0002] Currently, the more traditional power generation methods in society usually include thermal power generation, hydropower generation, wind power generation, photovoltaic power generation, nuclear power, etc. Among them, hydropower generation is widely used due to its advantages such as low cost, large power generation, and no environmental pollution.

[0003] The water turbine is the core equipment in hydroelectric power generation. Traditional water turbines typically include reaction turbines and impulse turbines. Reaction turbines include mixed-flow, axial-flow, oblique-flow, and through-flow types, while impulse turbines include bucket turbine, oblique-impact, and double-impact types. In current technology, both impulse and reaction turbines utilize the energy of water flow to drive the turbine runner, which in turn drives a generator to produce electricity. This method offers advantages such as low cost and environmental friendliness.

[0004] Reaction turbines and impulse turbines are classified as horizontal or vertical depending on the way the main shaft is set. Existing horizontal turbines generally have the problem of low water resource utilization, which can easily lead to unstable power generation during the dry season. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a horizontal turbine lever effect structure that can utilize the lever effect to improve the power generation efficiency of the turbine.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows:

[0007] This invention provides a lever effect structure for a horizontal water turbine, comprising:

[0008] A water turbine runner, wherein V-shaped blades for receiving water flow are arranged around the outer side of the water turbine runner, the water turbine runner has a central axis that passes vertically through its center point, and a nozzle for spraying water is arranged on one side of the central axis, the nozzle being directly opposite the V-shaped blades;

[0009] The base tailwater trough has a water discharge trough inside, which is located below the turbine runner. The top of the water discharge trough has an opening, and the bottom of the turbine runner can extend into the water discharge trough through the opening.

[0010] A lever effect drainage plate is located on the side of the central axis away from the nozzle. The lever effect drainage plate is disposed on the inner wall of the tailwater trough of the base and located below the trough opening. A U-shaped trough opening for the V-shaped blade to pass through is provided on the lever effect drainage plate.

[0011] Furthermore, the length of the lever effect drainage plate from the nearest end of the base tailwater trough is one-quarter of the total length of the base tailwater trough.

[0012] Furthermore, the lever effect drainage plate is inclined, and its inclination angle is 40-60 degrees.

[0013] Furthermore, a drain plate connected to the lever effect drain plate is provided on the inner wall of the base tailwater trough. The lever effect drain plate, the drain plate and the inner wall of the base tailwater trough form a drain and empty trough. A through hole is opened on the side plate of the base tailwater trough, and a drain pipe is installed on the through hole. One end of the drain pipe extends into the drain and empty trough, and the other end extends out of the base tailwater trough. A vacuum drain motor is also provided in the drain pipe, and motor blades are connected to the vacuum drain motor.

[0014] Furthermore, the end of the drain pipe opposite to the lever effect drain plate is also equipped with a drain port flange, through which a drain pipe is connected to the drain port flange to discharge the pumped water into the underground water tank.

[0015] In this application, the nozzle is connected to the high-pressure input pipeline of the self-circulating integrated hydraulic station. The high-pressure water flow can directly impact the V-shaped blades of the turbine runner from the nozzle, thereby driving the turbine runner to rotate faster. The turbine runner drives the turbine's generator ball through the shaft to work, thereby realizing hydroelectric power generation.

[0016] In this application, when the turbine runner rotates under the impact of water flow, it carries the water flow with it. 60% of the water will be discharged directly into the unloading tank when it reaches the bottom. The remaining 40% of the water will continue to rotate under the drive of the runner and impact the spillway plate. The spillway plate will block 30% of the water and allow it to enter the unloading tank. The remaining 10% of the water will continue to rotate with the runner. When it reaches the position of the drain trough, a vacuum pump is used to create a vacuum. The vacuum pump is intelligently controlled and starts synchronously with the turbine to discharge the remaining 10% of the water flow through the drain pipe. A vacuum is formed inside the runner, which prevents the residual water flow from creating resistance to the rotation of the runner, thereby improving the power generation efficiency of the runner.

[0017] Furthermore, a water-blocking ring is provided between the V-shaped blades and the turbine runner. The runner disc is mounted on the inner wall of the water-blocking ring, and several V-shaped blades are arranged around the center line of the arc surface of the outer circumference of the water-blocking ring, with one end of the V-shaped blades connected to the outer wall of the water-blocking ring. When water flows into the V-shaped blades, the water-blocking ring can cooperate with the V-shaped blades to form a groove for storing water, thereby preventing water from flowing out of the V-shaped blades and improving the utilization rate of the water flow.

[0018] The beneficial effects of this invention are as follows: Compared with the prior art, the turbine runner of this application has a nozzle on one side of the central axis and a lever-effect drain plate and a vacuum discharge motor on the other side. The lever-effect drain plate can work with the vacuum discharge motor to discharge the water flow remaining on the V-shaped blades, avoiding the water flow from causing resistance to the rotation of the runner. This allows the V-shaped blades on the central axis side of the turbine runner where the nozzle is located to receive the water flow and have a larger weight, while the V-shaped blades on the other side of the central axis of the turbine runner form a vacuum and are lighter in weight, thereby creating a lever effect and improving the power generation efficiency of the turbine. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the lever effect structure of a horizontal water turbine.

[0020] Figure 2 This is a cross-sectional view of the lever effect structure of a horizontal water turbine.

[0021] Figure 3 This is a structural diagram of the tailwater trough of the base.

[0022] In the diagram: 1. Turbine runner; 2. V-shaped blade; 3. Nozzle; 4. Tailwater trough of the base; 5. Water discharge trough; 6. Groove opening; 7. Lever-effect drain plate; 8. U-shaped groove opening; 9. Drainage base plate; 10. Drainage and emptying trough; 11. Drainage pipe; 12. Vacuum discharge motor; 13. Motor blade; 14. Drainage port flange; 15. Runner water-blocking ring. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] To achieve the above objectives, the technical solution of the present invention is as follows:

[0025] See Figure 1-3 As shown, this embodiment provides a lever effect structure for a horizontal water turbine, including:

[0026] A water turbine runner 1, with V-shaped blades 2 for receiving water flow arranged around its outer side, the water turbine runner 1 having a central axis that passes vertically through its center point, and a nozzle 3 for spraying water arranged on one side of the central axis, the nozzle 3 being directly opposite the V-shaped blades 2;

[0027] The base tailwater trough 4 has a water discharge trough 5 inside. The water discharge trough 5 is located below the turbine runner 1. The top of the water discharge trough 5 has a slot 6, and the bottom of the turbine runner 1 can extend into the water discharge trough 5 through the slot 6.

[0028] The lever effect drainage plate 7 is located on the side of the central axis away from the nozzle 3. The lever effect drainage plate 7 is set on the inner wall of the tailwater trough 4 of the base and located below the slot 6. The lever effect drainage plate 7 has a U-shaped slot 8 for the V-shaped blade 2 to pass through.

[0029] Furthermore, the length of the nearest end of the lever effect drainage plate 7 to the base tailwater trough 4 is one-quarter of the total length of the base tailwater trough 4.

[0030] Furthermore, the lever effect drainage plate 7 is inclined, and its inclination angle is 40-60 degrees.

[0031] Furthermore, a drain plate 9 connected to the lever effect drain plate 7 is also provided on the inner wall of the base tailwater trough 4. A drain trough 10 is formed between the lever effect drain plate 7, the drain plate 9 and the inner wall of the base tailwater trough 4. A through hole is opened on the side plate of the base tailwater trough 4. A drain pipe 11 is installed on the through hole. One end of the drain pipe 11 extends into the drain trough 10 and the other end extends out of the base tailwater trough 4. A vacuum drain motor 12 is also provided in the drain pipe 11. A motor blade 13 is connected to the vacuum drain motor 12.

[0032] Furthermore, the end of the drain pipe 11 away from the lever effect drain plate 7 is also equipped with a drain port flange 14, through which a drain pipe is connected to the drain port flange 14 to discharge the pumped water into the underground water tank.

[0033] In this application, the nozzle 3 is connected to the high-pressure input pipeline of the self-circulating integrated hydraulic station. The high-pressure water flow can directly impact the V-shaped blades 2 of the turbine disc from the nozzle 3, thereby driving the turbine runner 1 to rotate faster. The turbine runner 1 drives the turbine's generator ball to work through the rotating shaft, thereby realizing hydroelectric power generation.

[0034] In this application, when the turbine runner rotates under the impact of water flow, it carries the water flow with it. 60% of the water will be discharged directly into the unloading tank 5 when it reaches the bottom. The remaining 40% of the water will continue to rotate under the drive of the runner and hit the lever-effect drain plate 7. The lever-effect drain plate 7 will block 30% of the water and enter the unloading tank 5. The remaining 10% of the water will continue to rotate with the runner. When it rotates to the position of the drain trough 10, the vacuum pump motor 12 will create a vacuum. The vacuum pump motor 12 is intelligently controlled and starts synchronously with the turbine to discharge the remaining 10% of the water flow through the drain pipe 11. A vacuum is formed inside the runner, which avoids the residual water flow from causing resistance to the rotation of the turbine runner 1, thereby improving the power generation efficiency of the runner.

[0035] Furthermore, a runner water-blocking ring 15 is provided between the V-shaped blades 2 and the turbine runner 1. The runner disc is installed on the inner wall of the runner water-blocking ring 15. Several V-shaped blades 2 are arranged around the center line of the arc surface of the outer circumference of the runner water-blocking ring 15, and one end of the V-shaped blades 2 is connected to the outer wall of the runner water-blocking ring 15. When water flows into the V-shaped blades 2, the runner water-blocking ring 15 can cooperate with the V-shaped blades 2 to form a groove for storing water, thereby preventing water from flowing out of the V-shaped blades 2 and improving the utilization rate of water flow.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lever effect structure for a horizontal water turbine, characterized in that, include: A water turbine runner, wherein V-shaped blades for receiving water flow are arranged around the outer side of the water turbine runner, the water turbine runner has a central axis that passes vertically through its center point, and a nozzle for spraying water is arranged on one side of the central axis, the nozzle being directly opposite the V-shaped blades; The base tailwater trough has a water discharge trough inside, which is located below the turbine runner. The top of the water discharge trough has an opening, and the bottom of the turbine runner can extend into the water discharge trough through the opening. A lever effect drainage plate is located on the side of the central axis away from the nozzle. The lever effect drainage plate is disposed on the inner wall of the tailwater trough of the base and located below the trough opening. A U-shaped trough opening for the V-shaped blade to pass through is provided on the lever effect drainage plate.

2. The horizontal turbine lever effect structure as described in claim 1, characterized in that, The distance between the lever effect drain plate and the nearest end of the base tailwater trough is one-quarter of the total length of the base tailwater trough.

3. The lever effect structure of the horizontal turbine as described in claim 1, characterized in that, The lever effect drainage plate is inclined, and its inclination angle is 40-60 degrees.

4. The lever effect structure of the horizontal turbine as described in claim 1, characterized in that, The inner wall of the base tailwater trough is also provided with a drain bottom plate connected to the lever effect drain plate. The lever effect drain plate, the drain bottom plate and the inner wall of the base tailwater trough form a drain and empty trough. A through hole is opened on the side plate of the base tailwater trough. A drain pipe is installed on the through hole. One end of the drain pipe extends into the drain and empty trough and the other end extends out of the base tailwater trough. A vacuum drain motor is also provided in the drain pipe. Motor blades are connected to the vacuum drain motor.

5. The lever effect structure of the horizontal turbine as described in claim 4, characterized in that, The end of the drain pipe opposite to the lever-effect drain plate is also equipped with a drain port flange.

6. The lever effect structure of the horizontal turbine as described in claim 1, characterized in that, A water-blocking ring is also provided between the V-shaped blades and the turbine runner. The runner disc is installed on the inner wall of the water-blocking ring. Several V-shaped blades are arranged around the center line of the arc surface of the outer circumference of the water-blocking ring, and one end of the V-shaped blades is connected to the outer wall of the water-blocking ring.

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