Runner structure of vane-type water turbine

Abstract

This utility model discloses a V-blade turbine runner structure, belonging to the field of hydropower generation. It includes: a runner disc, a runner water-blocking ring, and several V-shaped blades. The runner disc is mounted on the inner wall of the runner water-blocking ring. The several V-shaped blades are arranged around the center line of the arc surface of the outer circumference of the runner water-blocking ring, with one end of each V-shaped blade connected to the outer wall of the runner water-blocking ring. Compared with the prior art, the V-shaped blades of this application have a "V"-shaped opening, which can both catch the water flow ejected from the nozzle, improving the water flow utilization rate, and reduce the airflow friction resistance generated during high-speed rotation by utilizing the "V"-shaped tip, thereby reducing energy loss and improving energy utilization. When the V-shaped blades rotate to the bottom of the runner disc, they can also unload water, reducing the load on the runner disc and improving the power generation efficiency of the turbine.

Description

Technical Field

[0001] This utility model belongs to the field of hydropower generation, and specifically relates to a V-blade turbine runner structure. 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 in their runners, which can easily lead to unstable power generation during the dry season. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a V-blade turbine runner structure that can improve water resource utilization and thus enhance the power generation efficiency of the turbine.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] This utility model provides a V-blade turbine runner structure, including: a runner disc, a runner water-blocking ring, and several V-shaped blades. The runner disc is installed on the inner wall of the runner water-blocking ring, and the several V-shaped blades are arranged around the center line of the arc surface of the outer circumference of the runner water-blocking ring, with one end of the V-shaped blades connected to the outer wall of the runner water-blocking ring.

[0008] Furthermore, the V-shaped openings of each V-shaped blade are oriented in the same direction, and the V-shaped openings of the V-shaped blades are opposite to the rotation direction of the rotary disk.

[0009] In this application, high-pressure water can be ejected from the nozzle and directly impact the V-shaped blades of the turbine runner, thereby driving the turbine runner to rotate faster. The turbine runner drives the generator bulb through the main shaft to generate hydroelectric power.

[0010] Compared to existing horizontal water turbines, the V-shaped blades of this application have an upward-facing "V"-shaped opening, receiving the impact of the water flow and rotating downwards. When the turbine rotates at high speed, the V-shaped tip of the blades points downwards. This not only allows the "V"-shaped opening to catch the water flow ejected from the nozzle, improving water utilization, but also reduces airflow friction resistance generated during high-speed rotation, thereby reducing energy loss and improving energy efficiency. When the V-shaped blades are impacted by the water flow, they drive the turbine disk to rotate. When the V-shaped blades rotate to the bottom of the turbine disk, the water on the blades is thrown into the water tank at the bottom of the turbine disk, discharging the water, reducing the load on the turbine disk, ensuring high-speed rotation of the turbine disk, and improving the power generation efficiency of the water turbine. At the same time, when the water flow enters the V-shaped blades, the water-blocking ring of the turbine disk can cooperate with the V-shaped blades to form a water storage tank, thereby preventing water from flowing out of the V-shaped blades and improving water utilization.

[0011] Furthermore, the V-shaped blade includes a first blade plate and a second blade plate. One side of the first blade plate and one side of the second blade plate are connected to form a "V" shape, and the opening of the "V" shape is opposite to the rotation direction of the rotary disk. This structure not only allows the opening of the "V" shape to receive the water flow from the nozzle, but also reduces air resistance by utilizing the tip of the "V" shape, thereby improving energy utilization.

[0012] Furthermore, the cross-section of the V-blade turbine runner structure is an "I" shape, symmetrical at both ends, making the structure more stable. Attached Figure Description

[0013] Figure 1 This is an axonometric view of the V-blade turbine runner structure.

[0014] Figure 2 This is a plan view of the V-blade turbine runner structure.

[0015] Figure 3 This is a cross-sectional view of the V-blade turbine runner structure.

[0016] In the diagram: 1. Rotary disc; 2. Rotary water-blocking circle; 3. V-shaped blade; 31. First blade plate; 32. Second blade plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model 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 of the present utility model and are not intended to limit the present utility model.

[0018] To achieve the above objectives, the technical solution of this utility model is as follows:

[0019] See Figure 1-3 As shown, this embodiment provides a V-blade turbine runner structure, including: a runner disk 1, a runner water-blocking circle 2, and several V-shaped blades 3. The runner disk 1 is installed on the inner wall of the runner water-blocking circle 2, and the several V-shaped blades 3 are arranged around the center line of the arc surface of the outer circumference of the runner water-blocking circle 2, and one end of the V-shaped blades 3 is connected to the outer wall of the runner water-blocking circle 2.

[0020] Furthermore, the "V"-shaped openings of each V-shaped blade 3 are in the same direction, and the "V"-shaped openings of the V-shaped blade 3 are opposite to the rotation direction of the rotary disk 1.

[0021] In this application, high-pressure water can be ejected from the nozzle and directly impact the V-shaped blades 3 of the turbine runner 1, thereby driving the turbine runner 1 to rotate faster. The turbine runner 1 drives the generator ball to work through the main shaft to realize hydroelectric power generation.

[0022] Compared to existing horizontal water turbines, the V-shaped blade 3 of this application has an upward-facing "V"-shaped opening, receiving the impact of the water flow and rotating downwards. When the water turbine rotates at high speed, the V-shaped tip of the V-shaped blade 3 points downwards. This not only allows it to catch the water flow ejected from the nozzle through the "V"-shaped opening, improving water flow utilization, but also reduces airflow friction resistance generated during high-speed rotation, thereby reducing energy loss and improving energy utilization. When the V-shaped blade 3 receives the impact of the water flow, it drives the turbine disk 1 to rotate. When the V-shaped blade 3 rotates to the bottom of the turbine disk 1, the water on the V-shaped blade 3 is thrown into the water tank at the bottom of the turbine disk 1, discharging the water, reducing the weight of the turbine disk 1, and ensuring high-speed rotation of the turbine disk 1, thus improving the power generation efficiency of the water turbine. At the same time, when the water flow enters the V-shaped blade 3, the water-blocking ring 2 of the turbine disk can cooperate with the V-shaped blade 3 to form a water storage tank, thereby preventing the water flow from flowing out of the V-shaped blade 3 and improving water flow utilization.

[0023] Furthermore, there are thirty V-shaped blades 3, which are arranged at equal intervals around the center line of the arc surface of the outer circumference of the water-blocking circle 2 of the impeller.

[0024] Furthermore, the V-shaped blade 3 includes a first blade plate 31 and a second blade plate 32. One side of the first blade plate 31 and one side of the second blade plate 32 are connected to form a "V" shape, and the opening of the "V" shape is opposite to the rotation direction of the rotary disk 1. This structure not only allows the opening of the "V" shape to receive the water flow from the nozzle, but also reduces air resistance by utilizing the tip of the "V" shape, thereby improving energy utilization.

[0025] Furthermore, the cross-section of the V-blade turbine runner structure in this application is an "I" shaped structure with symmetrical ends, making the structure more stable.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A V-blade turbine runner structure, characterized in that, include: The device comprises a rotating disc, a water-blocking ring, and several V-shaped blades. The rotating disc is mounted on the inner wall of the water-blocking ring, and the 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 each V-shaped blade connected to the outer wall of the water-blocking ring.

2. The V-blade turbine runner structure as described in claim 1, characterized in that, The "V" shaped openings of each V-shaped blade face the same direction, and the "V" shaped openings of the V-shaped blades are opposite to the rotation direction of the rotary disk.

3. The V-blade turbine runner structure as described in claim 1, characterized in that, The V-shaped blade includes a first blade plate and a second blade plate. One side of the first blade plate is connected to one side of the second blade plate to form a "V" shape structure, and the "V" shape opening is opposite to the rotation direction of the rotary disk.

4. The V-blade turbine runner structure as described in claim 1, characterized in that, The cross-section of the V-blade turbine runner structure is an "I" shaped structure.

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