V-blade semi-moon horizontal type water turbine casing

Abstract

This utility model discloses a V-blade semi-circular horizontal turbine casing, belonging to the field of hydropower generation. It includes a semi-circular casing, a base tailrace tank, and a V-blade lever runner. The V-blade lever runner includes a runner disc with a lever effect and several V-shaped blades. Compared with the prior art, the shape of the semi-circular casing in this application is adapted to the runner disc for mounting nozzles, which can shorten the distance between the nozzles and the runner disc, reducing water flow loss at the nozzles. The V-shaped blades have "V"-shaped openings, which can both catch the water flow ejected from the nozzles, improving water flow utilization, and reduce airflow friction resistance generated during high-speed rotation using the "V"-shaped tips, 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, giving the runner disc a lever effect, and improving the turbine's power generation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of hydropower generation, and specifically relates to a V-blade semi-circular horizontal turbine casing. 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 arrangement of their main shafts. However, existing horizontal turbines often suffer from low power generation efficiency. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this utility model is to provide a V-blade semi-circular horizontal turbine casing, which, when applied to a horizontal turbine, can improve the utilization rate of water resources 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 semi-circular horizontal turbine casing, comprising:

[0008] A crescent-shaped housing, wherein the crescent-shaped housing has an internal mounting cavity;

[0009] The base tail water trough is connected at its upper end to the lower end of the crescent-shaped shell, and the base tail water trough has a water discharge trough that communicates with the mounting cavity.

[0010] V-shaped lever wheel, the V-shaped lever wheel includes a wheel disk with lever effect and several V-shaped blades. The wheel disk is disposed in the mounting cavity and located above the water discharge tank. The several V-shaped blades are arranged around the outside of the wheel disk, and the "V" shaped openings of each V-shaped blade are in the same direction.

[0011] A nozzle installation pipe opening communicating with the installation cavity is provided on the semi-circular housing for installing a nozzle for jetting high-pressure water flow, and the nozzle installation pipe opening faces the V-shaped blade.

[0012] In this application, the high-pressure water flow can enter the installation cavity from the nozzle and directly impact the V-shaped blades of the runner disc, thereby driving the runner disc of the water turbine to accelerate rotation. The runner disc drives the power generation ball to work through the main shaft, realizing hydraulic power generation.

[0013] Further, the side surface of the casing of the V-blade semi-circular horizontal water turbine is of a "convex" shape structure.

[0014] Further, the cross-section of the side surface of the semi-circular housing is of an "I" shape structure.

[0015] Further, the cross-section of the side surface of the base tail water trough is of a "gantry" shape structure, and the "gantry" shape is a "∏" shape.

[0016] Further, the semi-circular housing includes a left semi-circular casing, a left circular casing, a jet mechanism casing, a jet mechanism guiding casing, a right semi-circular casing, and a right circular casing. The left semi-circular casing and the right semi-circular casing are arranged oppositely. A slot opening for communicating the installation cavity and the discharge water trough is provided at the top of the base tail water trough; the right semi-circular casing is located on the right side of the slot opening, and the bottom surface of the right semi-circular casing is fixedly installed on the top of the base tail water trough, and the outer side surface of the right circular casing is installed on the inner side surface of the right semi-circular casing; the left semi-circular casing is located on the left side of the slot opening, and the bottom surface of the left semi-circular casing is fixedly installed on the top of the base tail water trough, and the outer side surface of the left circular casing is installed on the inner side surface of the left semi-circular casing; the jet mechanism casing is buckled on the inner side surfaces of the edges of the right semi-circular casing and the left semi-circular casing, the jet mechanism guiding casing is seamlessly butted with the jet mechanism casing and buckled on the inner side surfaces of the edges of the right semi-circular casing and the left semi-circular casing, and the nozzle installation pipe opening is provided on the jet mechanism guiding casing.

[0017] Further, 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 opening of the "V" shape is opposite to the rotation direction of the runner disc. With the above structure settings, the opening of the "V" shape structure can receive the water flow ejected from the nozzle, and the tip of the "V" shape structure can be used to reduce air resistance, thereby improving the energy utilization rate.

[0018] Furthermore, the V-shaped lever wheel also includes a water-blocking ring. The wheel 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 each V-shaped blade 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 water storage groove, thereby preventing water from flowing out of the V-shaped blades and improving the utilization rate of the water flow.

[0019] The beneficial effects of this utility model are as follows: Compared with the prior art, this application, by setting a crescent-shaped shell that matches the annular rotating disk for mounting the nozzle, can shorten the distance between the nozzle and the rotating disk, reducing water flow loss from the nozzle; the V-shaped blades can receive the water flow ejected from the nozzle, with the "V"-shaped opening of the V-shaped blades facing upwards, receiving the water flow impact and rotating downwards. When the turbine rotates at high speed, the V-shaped tip of the V-shaped blades faces downwards, which can both receive the water flow ejected from the nozzle through the "V"-shaped opening and improve the utilization of the water flow. The V-shaped tip reduces airflow friction resistance during high-speed rotation, thereby reducing energy loss and improving energy utilization. When the V-shaped blades are impacted by the water flow, they drive the turbine to rotate. When the V-shaped blades rotate to the bottom of the turbine, the water on the V-shaped blades is thrown into the water discharge trough at the bottom of the turbine, discharging the water and reducing the load on the turbine. This gives the turbine a lever effect, ensuring high-speed rotation. When applied to horizontal turbines, this can improve the turbine's power generation efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the V-blade semi-circular horizontal turbine casing.

[0021] Figure 2 This is an exploded view of the casing of a V-blade semi-circular horizontal water turbine.

[0022] Figure 3 This is a cross-sectional view of the casing of a V-blade semi-circular horizontal water turbine.

[0023] In the diagram: 1. Crescent-shaped housing; 11. Left crescent-shaped housing; 12. Left circular housing; 13. Spray mechanism housing; 14. Spray mechanism guide housing; 15. Right crescent-shaped housing; 16. Right circular housing; 2. Mounting cavity; 3. Base tailwater trough; 31. Groove opening; 4. Water discharge trough; 5. V-blade lever wheel; 51. Wheel disc; 52. V-shaped blade; 521. First blade plate; 522. Second blade plate; 53. Wheel water-blocking circle; 6. Nozzle mounting port. Detailed Implementation

[0024] 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.

[0025] To achieve the above objectives, the technical solution of this utility model is as follows:

[0026] See Figure 1-3 As shown, this embodiment provides a V-blade semi-circular horizontal turbine casing, comprising:

[0027] A crescent-shaped housing 1, wherein the crescent-shaped housing 1 has an installation cavity 2 inside;

[0028] The base tail water trough 3 has its upper end connected to the lower end of the crescent-shaped shell 1, and the base tail water trough 3 has a water discharge trough 4 that communicates with the mounting cavity 2.

[0029] V-shaped lever wheel 5, the V-shaped lever wheel 5 includes a wheel disk 51 with lever effect and several V-shaped blades 52. The wheel disk 51 is disposed in the mounting cavity 2 and located above the water discharge tank 4. Several V-shaped blades 52 are arranged around the outside of the wheel disk 51, and the "V" shaped openings of each V-shaped blade 52 are in the same direction.

[0030] The crescent-shaped housing 1 is provided with a nozzle mounting port 6 that communicates with the mounting cavity 2 for mounting a nozzle that sprays high-pressure water flow, and the nozzle mounting port faces the V-shaped blade 52.

[0031] In this application, high-pressure water can be sprayed from the nozzle into the mounting cavity 2 and directly impact the "V"-shaped opening of the V-shaped blade 52 of the turbine disk 51. The V-shaped blade 52 will rotate under the impact of the water flow, thereby driving the turbine disk 51 to rotate faster. The turbine disk 51 drives the generator ball 7 to work through the main shaft 81 to realize hydroelectric power generation.

[0032] Compared to existing horizontal water turbines, this application features a crescent-shaped housing 1 that matches the shape of the annular impeller 51. The crescent-shaped housing 1 is used to mount nozzles, shortening the distance between the nozzles and the impeller 51 and reducing water flow loss. The V-shaped blades 52 have their "V"-shaped openings facing upwards, catching the water flow from the nozzles and rotating downwards to drive the impeller 51 at high speed. When the impeller 51 rotates at high speed, the V-shaped tips of the V-shaped blades 52 point downwards, effectively catching the water flow from the nozzles through their "V"-shaped openings. This improves the utilization rate of water flow and reduces 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 blade 52 is impacted by the water flow, it can drive the rotor disk 51 to rotate. When the V-shaped blade 52 rotates to the bottom of the rotor disk 51, the water on the V-shaped blade 52 will be thrown into the water discharge trough 4 at the bottom of the rotor disk 51 to discharge the water, reduce the weight of the rotor disk 51, and make the rotor disk 51 have a lever effect, ensuring that the rotor disk 51 rotates at high speed, which can improve the power generation efficiency of the water turbine.

[0033] Further, the crescent-shaped housing 1 includes a left crescent-shaped housing 11, a left circular housing 12, a jet mechanism housing 13, a jet mechanism guide housing 14, a right crescent-shaped housing 15, and a right circular housing 16. The left crescent-shaped housing 11 and the right crescent-shaped housing 15 are arranged opposite to each other. The top of the base tailwater trough 3 has a slot 31 for communicating with the installation cavity 2 and the unloading trough 4. The right crescent-shaped housing 15 is located to the right of the slot 31, and the bottom surface of the right crescent-shaped housing 15 is fixedly installed on the top of the base tailwater trough 3. The outer surface of the right circular housing 16 is installed on the right crescent-shaped housing. 15. The inner side of the left crescent-shaped housing 11 is located on the left side of the slot 31, and the bottom surface of the left crescent-shaped housing 11 is fixedly installed on the top of the tailwater trough 3 of the base. The outer side of the left circular housing 12 is installed on the inner side of the left crescent-shaped housing 11. The spray mechanism housing 13 is fastened to the inner side of the edges of the right crescent-shaped housing 15 and the left crescent-shaped housing 11. The spray mechanism guide housing 14 is seamlessly connected to the spray mechanism housing 13 and fastened to the inner side of the edges of the right crescent-shaped housing 15 and the left crescent-shaped housing 11. The nozzle mounting port 6 is opened on the spray mechanism guide housing 14. The above structure facilitates the assembly of the crescent-shaped housing 1, thereby facilitating the installation of the rotary disc 51.

[0034] Furthermore, the V-shaped blade 52 includes a first blade plate 521 and a second blade plate 522. One side of the first blade plate 521 and one side of the second blade plate 522 are connected to form a "V" shape, and the opening of the "V" shape is opposite to the rotation direction of the rotary disk 51. 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.

[0035] Furthermore, the V-shaped lever wheel 5 also includes a water-blocking ring 53. The wheel disc 51 is mounted on the inner wall of the water-blocking ring 53. Several V-shaped blades 52 are arranged around the center line of the arc surface of the outer circumference of the water-blocking ring 53, and one end of each V-shaped blade 52 is connected to the outer wall of the water-blocking ring 53. When water flows into the V-shaped blades 52, the water-blocking ring 53 can cooperate with the V-shaped blades 52 to form a groove for storing water, thereby preventing water from flowing out of the V-shaped blades 52 and improving the utilization rate of water flow.

[0036] 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 semi-circular horizontal turbine casing, characterized in that, Comprising: A semi-circular housing with an installation cavity inside. A base tail water tank, the upper end of which is connected to the lower end of the semi-circular housing, and there is a drain tank in the base tail water tank that communicates with the installation cavity. A V-shaped blade lever runner, which includes a runner disc with a lever effect and several V-shaped blades. The runner disc is arranged in the installation cavity and above the drain tank. The several V-shaped blades are arranged around the outer side of the runner disc, and the direction of the "V" shape opening of each V-shaped blade is the same. A nozzle installation pipe opening communicating with the installation cavity is provided on the semi-circular housing for installing a nozzle for jetting high-pressure water flow, and the nozzle installation pipe opening faces the V-shaped blades.

2. The V-blade semi-circular horizontal turbine casing as described in claim 1, characterized in that, The side of the V-shaped blade semi-circular horizontal water turbine housing is a "convex" shape structure.

3. The V-blade semi-circular horizontal turbine casing as described in claim 1, characterized in that, The cross-section of the side of the semi-circular housing is an "I" shape structure.

4. The V-blade semi-circular horizontal turbine casing as described in claim 1, characterized in that, The cross-section of the side of the base tail water tank is a "gantry" shape structure.

5. The V-blade semi-circular horizontal turbine casing as described in claim 1, characterized in that, The semi-circular housing includes a left semi-circular housing, a left circular housing, a jet mechanism housing, a jet mechanism guide housing, a right semi-circular housing, and a right circular housing. The left semi-circular housing and the right semi-circular housing are arranged opposite to each other. A notch for communicating the installation cavity and the drain tank is provided at the top of the base tail water tank; the right semi-circular housing is located on the right side of the notch, and the bottom surface of the right semi-circular housing is fixedly installed on the top of the base tail water tank, and the outer side surface of the right circular housing is installed on the inner side surface of the right semi-circular housing; the left semi-circular housing is located on the left side of the notch, and the bottom surface of the left semi-circular housing is fixedly installed on the top of the base tail water tank, and the outer side surface of the left circular housing is installed on the inner side surface of the left semi-circular housing; the jet mechanism housing is buckled on the inner side surfaces of the edges of the right semi-circular housing and the left semi-circular housing, the jet mechanism guide housing is seamlessly butted with the jet mechanism housing and buckled on the inner side surfaces of the edges of the right semi-circular housing and the left semi-circular housing, and the nozzle installation pipe opening is provided on the jet mechanism guide housing.

6. The V-blade semi-circular horizontal turbine casing 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 runner disc.

7. The V-blade semi-circular horizontal turbine casing as described in claim 1, characterized in that, The V-shaped blade lever runner further includes a runner water blocking circle. The runner disc is installed on the inner wall of the runner water blocking circle. The several V-shaped blades are arranged around the arc center line of the outer circumference of the runner water blocking circle, and one end of the V-shaped blade is connected to the outer wall of the runner water blocking circle.

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