High-efficiency water turbine for hydropower station

Abstract

This invention discloses a high-efficiency water turbine for hydropower stations, the turbine assembly including a water tank body. After river water enters the inlet pipe at the upper end of the water tank body, the water is diverted through inclined pipes on both sides of the inlet pipe until the cavity within the inclined pipe is filled. This causes another transverse rack plate to move forward, driving an inclined arc-shaped semi-circular pipe at one end of the rack plate. When the inclined arc-shaped semi-circular pipe moves to one side, it squeezes the connecting hose installed below the inlet pipe. This increases the impact force of the falling river water, making the impact on the turbine blades more efficient and generating electricity faster. Furthermore, a speed regulating component wrapped around the outside of the turbine shaft within the lower cavity can regulate the flow velocity from the outlet by water pressure when the blades are rotated by the water flow, while simultaneously reducing the impact of the water flow on the water tank body and preventing damage to the tank.

Description

Technical Field

[0001] This invention relates to the field of water turbines, and in particular to a high-efficiency water turbine for hydropower stations. Background Technology

[0002] A hydroturbine is a power machine that converts the energy of flowing water into rotational mechanical energy; it belongs to the category of turbine machinery within fluid machinery. As early as around 100 BC, China saw the emergence of rudimentary water turbines—waterwheels—used for irrigation and driving grain processing equipment. Modern hydroturbines are mostly installed in hydroelectric power stations to drive generators. In a hydroelectric power station, water from the upstream reservoir is drawn through a water pipe to the turbine, driving the turbine runner to rotate and power the generator. The water that has performed its work is then discharged downstream through a tailrace pipe. The higher the water head and the greater the flow rate, the greater the output power of the turbine. Hydroturbines and auxiliary machinery are important hydroelectric equipment and an indispensable component of the hydropower industry. They are crucial for fully utilizing clean and renewable energy to achieve energy conservation, emission reduction, and environmental pollution reduction. Their technological development is commensurate with the scale of development of my country's hydroelectric industry. Driven by strong electricity demand in my country, the manufacturing industry of hydroturbines and auxiliary machinery has entered a period of rapid development, with significant improvements in its economic scale and technological level. my country's hydroturbine manufacturing technology has reached the world's advanced level. Existing water turbines come in various shapes and sizes in hydropower stations. Among them, vertical water turbines, during operation, are affected by the impact force generated after the gate is opened. The impact force of the river water is also reduced before it flows into the water turbine. Therefore, the water flow speed reaching the water turbine cannot reach the initial maximum speed, and there is room for improvement. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of the embodiments of the present invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this section, the abstract and title of the invention. Such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that, in the current use, the water flow speed is based on the impact force formed after the gate is opened, and the river water will also reduce a certain impact force before flowing into the water turbine. Therefore, the water flow speed reaching the water turbine cannot reach the initial maximum speed, and there is room for improvement.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-efficiency water turbine for hydropower stations, the water turbine assembly including a water tank body, the water tank body having an upper cavity and a lower cavity inside, the upper cavity being located at the upper end of the lower cavity, and there are two sets of upper cavities, the lower cavity being circular; an adjustment assembly including a water inlet pipe fixedly installed between the two sets of upper cavities, the upper end of the water inlet pipe penetrating through the top of the water tank body, the lower end of the water inlet pipe being located at the center of each set of upper cavities; and a speed regulating assembly including a support seat fixedly installed on one side of the lower cavity, the support seat being aligned with the edge of one side of the water tank body, and the support seat being in the shape of an inclined trapezoid.

[0007] As an improvement of the present invention, a water turbine housing is fixedly installed at the front end of the water tank body, and the water turbine housing is fixedly installed at the edge of the lower cavity by bolts.

[0008] As an improvement of the present invention, a rotor is rotatably connected to the center of the turbine casing, a turbine shaft is fixedly installed at one end of the rotor, a number of sets of blades are fixedly installed on the outer wall of the turbine shaft, the blades are inclined, and the other end of the rotor passes through the turbine casing and is rotatably connected to it.

[0009] A water outlet is fixedly installed at the other end of the water tank body, and one side of the water outlet is embedded in the other side of the lower cavity.

[0010] As an improvement of the present invention, the outer wall of the water inlet pipe is connected to two sets of inclined pipes, and the two sets of inclined pipes are respectively installed at the center of the two upper cavities. A triangular filter screen is fixedly installed on the inner wall of the water inlet pipe near the two sets of inclined pipes, and the triangular filter screen is located at the center of the water inlet pipe.

[0011] Both sets of upper cavities are fixedly equipped with support frames at their bottoms, and the center of each support frame is hollow. Both sets of upper cavities have maintenance chambers at their tops, and both sets of maintenance chambers have spring shafts at their bottoms. One end of each spring shaft is connected to the bottom of the maintenance chamber, and the other end of each spring shaft has a movable plate that fits against the lower end of the maintenance chamber.

[0012] As an improvement of the present invention, the bottom of both sets of inclined tubes are slidably connected with vertical rack plates, and an arc-shaped support plate is fixedly installed at the upper end of the vertical rack plate. A compression spring is sleeved on one end of the vertical rack plate near the arc-shaped support plate, the upper end of the compression spring is fixedly installed at the lower end of the arc-shaped support plate, and the lower end of the compression spring is fixedly installed inside the inclined tube.

[0013] As an improvement of the present invention, a transverse rack plate is slidably connected at the center of the support frame, and a sloping arc-shaped semicircular tube is fixedly installed at one end of the transverse rack plate, the sloping arc-shaped semicircular tube being located at the edge of the upper cavity;

[0014] A reduction gear set is rotatably connected to the center of each upper cavity. The upper end of the transverse rack plate meshes with one side of the reduction gear set, and the vertical rack plate meshes with the other side of the reduction gear set. An L-shaped limiting rod (212) is fixedly installed on one side of the vertical rack plate (205), and the lower end of the L-shaped limiting rod (212) can be embedded in the tooth groove on the transverse rack plate (207).

[0015] As an improvement of the present invention, a connecting hose is fixedly installed at the lower end of the water inlet pipe. The length of the connecting hose is half the length of the upper cavity, and the inclined surface of the inclined arc-shaped semicircular pipe contacts the bottom of the connecting hose.

[0016] As an improvement of the present invention, the upper end of the support base is provided with a connecting shaft groove, and a spring shaft is movably connected inside the connecting shaft groove, and the spring shaft is a semi-circular shaft.

[0017] As an improvement of the present invention, an arc-shaped strip is fixedly installed at the upper end of the elastic shaft.

[0018] As an improvement of the present invention, the arc-shaped strip is located at the edge of the water turbine shaft, and the maximum angle of movement of the arc-shaped strip is less than the diameter of the blades connected to the water turbine shaft.

[0019] The beneficial effects of this invention are as follows: After the river water enters the inlet pipe at the upper end of the water tank body, the inclined pipes on both sides of the inlet pipe cause the river water to flow from both sides until the cavity inside the inclined pipe is filled. At this time, the downward river water continues to fall, thereby squeezing the arc-shaped receiving plate inside the inclined pipe to move downward, driving the vertical rack plate to rotate the reduction gear set and driving the other horizontal rack plate to move forward. This drives the inclined arc-shaped semi-circular tube at one end of the horizontal rack plate. When the inclined arc-shaped semi-circular tube moves to one side, it will squeeze the connector installed below the inlet pipe. The hose, which is originally in its initial state, tightens its inner ring, thus creating a difference in diameter between the inlet pipe and the connecting hose. This allows the river water to be compressed as it falls, increasing the impact force and thus increasing the efficiency of the water impacting the blades on the turbine shaft. This results in faster power generation. Furthermore, the speed regulating component, which is wrapped around the outside of the turbine shaft in the lower cavity, can regulate the flow rate of the water from the outlet by water pressure when the blades are driven to rotate by the water flow. At the same time, it increases the buffering effect of the water flow on the water tank body, preventing damage to the water tank. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a structural schematic diagram of a high-efficiency water turbine for a hydropower station according to the present invention;

[0022] Figure 2 This is a schematic diagram of the overall planar structure of a high-efficiency water turbine for a hydropower station according to the present invention;

[0023] Figure 3 This is a schematic diagram of the working structure of a high-efficiency water turbine for a hydropower station according to the present invention;

[0024] Figure 4 This invention relates to a high-efficiency water turbine for hydropower stations. Figure 3 Schematic diagram of the structure at point A;

[0025] Figure 5 This is a schematic diagram of the structure of two sets of inclined arc-shaped semicircular pipes in a high-efficiency water turbine for a hydropower station according to the present invention;

[0026] Figure 6 This is a schematic diagram of the planar structure of a speed regulating component in a high-efficiency water turbine for a hydropower station according to the present invention. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Example 1

[0029] Reference Figure 1 , 2 3 is the first embodiment of the present invention, which provides a high-efficiency water turbine for a hydropower station.

[0030] The water turbine assembly 100 includes a water tank body 101. The water tank body 101 has an upper cavity 101a and a lower cavity 101b inside. The upper cavity 101a is located at the upper end of the lower cavity 101b, and there are two sets of upper cavities 101a. The lower cavity 101b is circular. A water turbine housing 102 is fixedly installed at the front end of the water tank body 101. The water turbine housing 102 is fixedly installed at the edge of the lower cavity 101b by bolts.

[0031] Specifically, the water tank body 101 is a rectangular box with a mounting base at the bottom, and the mounting base is equipped with several bolt sets for easy fixing.

[0032] A rotor 103 is rotatably connected to the center of the turbine housing 102. A turbine shaft 105 is fixedly installed at one end of the rotor 103. Several sets of blades 105a are fixedly installed on the outer wall of the turbine shaft 105. The blades 105a are inclined. The other end of the rotor 103 passes through the turbine housing 102 and is rotatably connected to it. A water outlet 104 is fixedly installed at the other end of the water tank body 101. One side of the water outlet 104 is embedded in the other side of the lower cavity.

[0033] Specifically, the angle between the blade 105a and the water turbine shaft 105 shall not exceed 30°, and the water turbine shaft 105 shall be located at the center of the lower cavity 101b, while the water inlet pipe shall be located exactly above the center of the water turbine shaft 105.

[0034] Example 2

[0035] Reference Figure 1 , 3 4 and 5 are the second embodiment of the present invention. This embodiment is based on the previous embodiment and also includes an adjustment component 200, including a water inlet pipe 201 fixedly installed between two sets of upper cavities 101a. The upper end of the water inlet pipe 201 penetrates the top of the water tank body 101, and the lower end of the water inlet pipe 201 is located at the center of each set of upper cavities 101a.

[0036] Two sets of inclined tubes 206 are connected through the outer wall of the inlet pipe 201. The two sets of inclined tubes 206 are respectively installed at the center of the two upper cavities 101a. A triangular filter screen 211 is fixedly installed on the inner wall of the inlet pipe 201 near the two sets of inclined tubes 206, and the triangular filter screen 211 is located at the center of the inlet pipe 201. A support frame 208 is fixedly installed at the bottom of each of the two upper cavities 101a. The center of the support frame 208 is hollow. A support frame 208 is fixedly installed. The center of the support frame 208 is hollow. A maintenance cavity 101a-1 is opened above the two sets of upper cavities 101a. A spring shaft 101a-3 is provided below the two sets of maintenance cavities 101a-1. One end of the spring shaft 101a-3 is connected to the lower part of the maintenance cavity 101a-1, and the other end of the spring shaft 101a-3 is provided with a movable plate 101a-2. The movable plate 101a-2 fits against the lower end of the maintenance cavity 101a-1.

[0037] Specifically, when the river water flows downstream through the sluice gate and enters the inlet pipe 201 at the upper end of the water tank body 101, the water flow first fills the interior of the inlet pipe 201. At this time, the water flow passes through the inclined pipes 206 on both sides of the inlet pipe 201, causing the river water to split from both sides after entering the inlet pipe 201 until it fills the cavity inside the inclined pipes 206. After the triangular filter screen 211 is installed on the inlet pipe 201, it can filter impurities in the water flow after the water flow impacts the triangular filter screen 211. At the same time, the triangular shape of the triangular filter screen 211... This design greatly reduces the falling speed of water after it impacts the triangular filter screen 211. At the same time, the lower end of the inspection chamber 101a-1 in both upper cavities 101a is provided with a limiting groove. The movable plate 101a-2 connected by the spring shaft 101a-3 can fit exactly in the limiting groove, preventing the movable plate 101a-2 from flipping upward. In the initial state, the movable plate 101a-2 is against the inner cavity of the corresponding inclined tube 206. At this time, the inspection chamber 101a-1 can directly clean the inner cavity of the inclined tube 206.

[0038] Furthermore, after the river water has flowed out, the impurities remaining in the inclined pipe 206 will block the arc-shaped receiving plate 203 from rising. Thus, when the staff observes downwards from the inlet pipe 201, the arc-shaped receiving plate 203 cannot rise, causing the diameters between the inlet pipe 201 and the connecting hose 210 to remain different. At this point, the staff can tell that there are too many impurities in the inclined pipe 206 and clean it. If the diameters between the inlet pipe 201 and the connecting hose 210 are the same when the staff looks downwards from the inlet pipe 201, then cleaning is not necessary.

[0039] Both sets of inclined tubes 206 have vertical rack plates 205 slidably connected to their bottoms. An arc-shaped support plate 203 is fixedly installed on the upper end of the vertical rack plate 205. A compression spring 204 is sleeved on one end of the vertical rack plate 205 near the arc-shaped support plate 203. The upper end of the compression spring 204 is fixedly installed on the lower end of the arc-shaped support plate 203, and the lower end of the compression spring 204 is fixedly installed inside the inclined tube 206.

[0040] Specifically, when the river water fills the cavity inside the inclined tube 206, the water flow just causes the blades 105a on the water turbine shaft 105 to rotate one or two revolutions. At this time, the river water continuously flows into the interior through the inlet pipe 201. Meanwhile, the downward flow of the river water compresses the arc-shaped support plate 203 inside the inclined tube 206, causing the vertical rack plate 205 to slide down. At the same time, the compression spring 204 on the vertical rack plate 205 can be compressed downward by the impact force of the water flow. When the force of the water flow is less than the force of the compression spring 204, the compression spring 204 raises the arc-shaped support plate 203 until it returns to its initial position.

[0041] A transverse rack plate 207 is slidably connected at the center of the support frame 208. A sloping arc-shaped semicircular tube 209 is fixedly installed at one end of the transverse rack plate 207. The sloping arc-shaped semicircular tube 209 is located at the edge of the upper cavity 101a. A reduction gear set 202 is rotatably connected at the center of each set of upper cavities 101a. The upper end of the transverse rack plate 207 meshes with one side of the reduction gear set 202, and the vertical rack plate 205 meshes with the other side of the reduction gear set 202. An L-shaped limiting rod 212 is fixedly installed on one side of the vertical rack plate 205. The lower end of the L-shaped limiting rod 212 can be embedded in the tooth groove on the transverse rack plate 207.

[0042] Specifically, the reduction gear set 202 includes a set of pinions and two sets of gears. One end of the pinion meshes with the vertical rack plate 205, and the other end meshes with the connecting gear on one set of the gears. One end of the gears meshes with the other set of gears, and the other end of the other set of gears meshes with the horizontal rack plate 207. This ensures that when the vertical rack plate 205 moves downward, the horizontal rack plate 207 moves towards the connecting hose 210. At the same time, because the reduction gear set 202 is composed of pinions meshing with gears, the rotational speeds of the pinions and gears are not the same. This allows the L-shaped limit rod 212 to move upward when the vertical rack plate 205 moves upward, preventing the L-shaped limit rod 212 from jamming with the horizontal rack plate 207 and causing it to be unable to move.

[0043] A connecting hose 210 is fixedly installed at the lower end of the water inlet pipe 201. The length of the connecting hose 210 is half the length of the upper cavity 101a, and the inclined surface of the inclined arc semi-circular pipe 209 contacts the bottom of the connecting hose 210.

[0044] Example 3

[0045] Reference Figure 2 , 3 6 is the third embodiment of the present invention. This embodiment is based on the previous embodiment and differs from the above two embodiments in that it also includes a speed regulating component 300, which includes a support seat 304 fixedly installed on one side of the lower cavity 101b. The support seat 304 is aligned with the edge of one side of the water tank body 101, and the support seat 304 is in the shape of an inclined trapezoid. A connecting shaft groove 303 is provided at the upper end of the support seat 304. A spring shaft 302 is movably connected inside the connecting shaft groove 303, and the spring shaft 302 is a semi-circular shaft.

[0046] An arc-shaped strip 301 is fixedly installed at the upper end of the elastic shaft 302. The arc-shaped strip 301 is located at the edge of the water turbine shaft 105, and the maximum angle of movement of the arc-shaped strip 301 is less than the diameter of the blade 105a connected to the water turbine shaft 105.

[0047] Specifically, after the water flow reaches the highest point on the arc-shaped bar 301, its speed will slow down. After slowing down to the maximum rising height, the water flow will fall through the gap between the arc-shaped bar 301 and the lower cavity 101b, and then flow out from the outlet 104. In this way, the flow rate of the water from the outlet 104 can be regulated by water pressure. At the same time, the arc-shaped bar 301 can also reduce the impact force of the water flow on the water tank body 101, preventing damage to the water tank.

[0048] Specifically, the arc-shaped strip 301 is an elliptical semi-circular strip with a gentler slope at the top than at the bottom. When the blade 105a impacts the arc-shaped strip 301, the upper part of the arc-shaped strip 301 will adhere to the right side of the lower cavity 101b. At this time, the bottom of the arc-shaped strip 301 will be tilted upward. When the blade 105a drives the water flow over the arc-shaped strip 301, it will have a certain speed boost, so that the speed will increase after reaching the bottom of the arc-shaped strip 301, thereby driving the blade 105a to rotate rapidly again.

[0049] Working principle: When river water flows into the inlet pipe 201 at the upper end of the water tank body 101 after the sluice gate is opened, the water flow first passes through the triangular filter screen 211 on the inlet pipe 201. When passing through the triangular filter screen 211, large particles of impurities in the river water will remain above the triangular filter screen 211. Then, driven by the water flow, they enter the inclined pipes 206 on both sides of the inlet pipe 201. During this process, a small amount of river water also enters the inclined pipes 206. After the river water and impurities enter the inclined pipes 206, they will also drive the movable plate 101a-2 connected by the spring shaft 101a-3 to lift upward. At this time, the movable plate 101a-2 can seal the inspection chamber 101a-1 after it is lifted upward. When the river water and impurities fill the cavity inside the inclined pipe 206... At this time, the water flow causes the blades 105a on the water turbine shaft 105 to rotate one or two revolutions. Meanwhile, river water continuously flows into the interior through the inlet pipe 201. Simultaneously, the continuously filtered impurities and the downward flow of river water compress the arc-shaped receiving plate 203 inside the inclined tube 206, causing it to move downward and drive the vertical rack plate 205 down. When the vertical rack plate 205 slides down, it rotates the reduction gear set 202, causing the transverse rack plate 207 meshing with the reduction gear set 202 to move towards the upper cavity 101a. When the transverse rack plate 207 moves, it drives the inclined arc-shaped semi-circular tube 209 at one end of the transverse rack plate 207. When the inclined arc-shaped semi-circular tube 209 moves to one side, it compresses the connecting hose 2 installed below the inlet pipe 201. 10. The inner ring of the connecting hose 210, which was originally in its initial state, is tightened, resulting in a difference in diameter between the inlet pipe 201 and the connecting hose 210. This causes the river water to be compressed as it falls, increasing the impact force. The impact force is greater than the original impact force of the river water falling, thus offsetting the reduced impact force after the river water reaches the triangular filter 211. At the same time, it increases the impact of the river water on the blades 105a on the water turbine shaft 105, making the blades 105a rotate faster and more efficiently, resulting in faster power generation. When the transverse rack plate 207 moves to its maximum distance, the L-shaped limiting rod 212, which is fixedly connected to the vertical rack plate 205, can be precisely engaged in the groove on the transverse rack plate 207, fixing it in place. This prevents the river water from impacting the connecting hose 210 as it falls. After the water flow stops, the connecting hose 206 is washed away by the river water. Once the water has drained, the impurities remaining in the inclined pipe 206 will block the curved support plate 203, preventing it from rising. Thus, when workers observe from below the inlet pipe 201, the inability of the curved support plate 203 to rise causes the diameters of the inlet pipe 201 and the connecting hose 210 to remain different. In this case, workers can determine if there are excessive impurities in the inclined pipe 206 and clean it. If the diameters of the inlet pipe 201 and the connecting hose 210 are the same when viewed from below, cleaning is not necessary. When cleaning of the inclined pipe 206 is required, the impurities can be directly cleaned from the inspection chamber 101a-1, saving time and effort.Furthermore, the speed regulating component 300, which is enclosed outside the water turbine shaft 105 within the lower cavity 101b, causes the blades 105a on the water turbine shaft 105 to rotate due to the speed of the falling river water. The blades 105a also cause the water in the lower cavity 101b to rotate. As the water in the lower cavity 101b rotates, it first impacts the outer wall of the arc-shaped bar 301, causing the arc-shaped bar 301 to rise downwards according to the direction of movement of the elastic shaft 302, and move upwards towards the blades 105a. This reduces the gap in the lower cavity 101b, allowing the water to move simultaneously with the blades 105a. The water flow also accelerates its rotation based on the curvature of the arc-shaped bar 301, further increasing the rotational speed of the blade 105a. During the ascent from the bottom of the arc-shaped bar 301, the water flow slows down after reaching its highest point. After reaching its maximum rising height, the water flows down through the gap between the arc-shaped bar 301 and the lower cavity 101b, and then flows out from the outlet 104. This allows for the regulation of the water flow velocity at the outlet 104 through water pressure. Simultaneously, the arc-shaped bar 301 also reduces the impact force of the water flow on the water tank body 101, preventing damage to the water tank.

[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0052] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-efficiency water turbine for a hydropower station, characterized in that: include, A water turbine assembly includes a water tank body, the interior of which is provided with an upper cavity and a lower cavity. The upper cavity is located above the lower cavity, and there are two sets of upper cavities. The lower cavity is circular. The adjustment assembly includes a water inlet pipe fixedly installed between two sets of upper cavities, the upper end of the water inlet pipe penetrating the top of the water tank body, and the lower end of the water inlet pipe located at the center of each set of upper cavities; and, The speed control assembly includes a support seat fixedly installed on one side of the lower cavity, the support seat being aligned with the edge of one side of the water tank body, and the support seat being in the shape of an inclined trapezoid. Two sets of inclined tubes are connected through the outer wall of the water inlet pipe. The two sets of inclined tubes are respectively installed at the center of the two upper cavities. A triangular filter screen is fixedly installed on the inner wall of the water inlet pipe near the two sets of inclined tubes. The triangular filter screen is located at the center of the water inlet pipe. A support frame is fixedly installed at the bottom of both sets of upper cavities. The center of the support frame is hollow. A maintenance cavity is opened above both sets of upper cavities. A spring shaft is installed below both sets of maintenance cavities. One end of the spring shaft is connected to the bottom of the maintenance cavity. A movable plate is installed at the other end of the spring shaft. The movable plate is attached to the lower end of the maintenance cavity. Both sets of inclined tubes are slidably connected to a vertical rack plate at their bottom. An arc-shaped support plate is fixedly installed at the upper end of the vertical rack plate. A compression spring is sleeved on one end of the vertical rack plate near the arc-shaped support plate. The upper end of the compression spring is fixedly installed at the lower end of the arc-shaped support plate. The lower end of the compression spring is fixedly installed inside the inclined tube. A transverse rack plate is slidably connected at the center of the support frame, and a sloping arc-shaped semicircular tube is fixedly installed at one end of the transverse rack plate. The sloping arc-shaped semicircular tube is located at the edge of the upper cavity. A reduction gear set is rotatably connected to the center of each cavity. The upper end of the horizontal rack plate meshes with one side of the reduction gear set, and the vertical rack plate meshes with the other side of the reduction gear set. An L-shaped limiting rod is fixedly installed on one side of the vertical rack plate, and the lower end of the L-shaped limiting rod can be embedded in the tooth groove on the horizontal rack plate.

2. The high-efficiency water turbine for a hydropower station according to claim 1, characterized in that: A water turbine housing is fixedly installed at the front end of the water tank body, and the water turbine housing is fixedly installed at the edge of the lower cavity by bolts.

3. The high-efficiency water turbine for a hydropower station according to claim 2, characterized in that: A rotor is rotatably connected to the center of the turbine casing. A turbine shaft is fixedly installed at one end of the rotor. Several sets of blades are fixedly installed on the outer wall of the turbine shaft. The blades are inclined. The other end of the rotor passes through the turbine casing and is rotatably connected to it. A water outlet is fixedly installed at the other end of the water tank body, and one side of the water outlet is embedded in the other side of the lower cavity.

4. A high-efficiency water turbine for a hydropower station according to claim 3, characterized in that: A connecting hose is fixedly installed at the lower end of the water inlet pipe. The length of the connecting hose is half the length of the upper cavity, and the inclined surface of the inclined arc-shaped semicircular pipe contacts the bottom of the connecting hose.

5. A high-efficiency water turbine for a hydropower station according to claim 4, characterized in that: The upper end of the support base is provided with a connecting shaft groove, and a spring shaft is movably connected inside the connecting shaft groove. The spring shaft is a semi-circular shaft.

6. A high-efficiency water turbine for a hydropower station according to claim 5, characterized in that: An arc-shaped strip is fixedly installed at the upper end of the elastic shaft.

7. A high-efficiency water turbine for a hydropower station according to claim 6, characterized in that: The arc-shaped strip is located at the edge of the water turbine shaft.

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