Water wheel power generation mechanism

Abstract

The invention belongs to the technical field of power generation equipment, and particularly relates to a water wheel power generation mechanism which comprises a shell, an impeller mechanism is arranged in the shell, and the impeller mechanism is connected with a power generator and drives the power generator to generate power. The impeller mechanism comprises a spherical seat, and a circle of movable blades are arranged on the outer side of the spherical seat; a flexible telescopic mechanism is arranged on the movable blade; the flexible telescopic mechanisms have the function of filling gaps between the adjacent movable blades or gaps between the movable blades and the inner wall of the shell. According to the water wheel power generation mechanism, all the movable blades can be spliced to form an isolation structure, and a water turbine can achieve the function of a gate system; a flexible telescopic mechanism is arranged, gaps between the adjacent movable blades and gaps between the movable blades and the inner wall of the shell are filled in a sealed mode, the isolation effect is improved, and meanwhile the flexible telescopic mechanism can also be used as a brake mechanism of the hydraulic turbine set; the water wheel power generation mechanism is simple in composition structure and small in size.

Description

Technical Field

[0001] The invention relates to the technical field of power generation equipment, and in particular to a water wheel power generation mechanism. Background Art

[0002] In the field of hydropower generation, the turbine is one of the most important core equipment and the power source of the entire power generation system. Its main function is to efficiently convert the kinetic energy and potential energy of water flow in nature into mechanical energy that can be used by humans. This conversion process is the core of hydropower generation technology. The converted mechanical energy can then be used to drive generators to generate electricity, or to drive other types of mechanical devices, such as pumping stations and irrigation systems, to meet people's different power needs in life and production.

[0003] As an environmentally friendly and sustainable energy conversion device, the advantage of a water turbine is that it has a relatively small impact on the environment and its energy is highly renewable. Hydropower does not consume fuel and does not produce greenhouse gas emissions. It is a clean energy source and has been vigorously promoted and applied. In addition, the stability and reliability of hydropower are also important reasons for its wide application in many fields such as power stations, irrigation, pumping stations and industrial production. The water turbine can work under different head and flow conditions, has strong adaptability, and can provide a stable power supply for the power grid, while also providing security for agricultural irrigation and industrial water use.

[0004] In order to meet the diverse power demands and adapt to the changing water resource conditions, it is crucial to accurately adjust the power generation of the turbine. In the prior art, most turbines rely mainly on additional gate systems to regulate the water head and flow rate as the main means of regulating the power generation. Specifically, the upstream water level, i.e., the water head, is adjusted by controlling the opening and closing of the reservoir gate, thereby changing the speed and energy of the water flow, and finally achieving the purpose of regulating the power generation of the turbine. It can be seen that this type of turbine unit has the following shortcomings: 1. This type of turbine cannot cut off the water flow, and it must be equipped with a corresponding gate system to achieve coordinated work; 2. When the turbine needs to be shut down, they usually rely on external complex braking mechanisms, which makes the overall structure of the turbine unit more complex and the overall volume is correspondingly larger.

[0005] In view of this, the present application aims to provide a new hydro-turbine power generation mechanism to solve the above-mentioned problems. Summary of the invention

[0006] The object of the present invention is to overcome at least one of the above-mentioned deficiencies in the prior art and to provide a hydro-turbine power generation mechanism with flexible and convenient power regulation, simple structure and compact size.

[0007] The technical solution of the present invention is: a water wheel power generation mechanism, including an outer shell, an impeller mechanism is arranged inside the outer shell, the impeller mechanism is connected to the generator and drives the generator to generate electricity; the impeller mechanism includes a spherical seat, and a circle of movable blades is arranged on the outer side of the spherical seat; a flexible telescopic mechanism is arranged on the movable blades; the flexible telescopic mechanism has the function of filling the gap between adjacent movable blades or between the movable blades and the inner wall of the outer shell.

[0008] Furthermore, the flexible telescopic mechanism includes a flexible hose, which is connected to a filling pump, and the filling pump is used to pump filling material into or out of the flexible hose. When the filling material is pumped in, the flexible hose will expand, and when the filling material is pumped out, the flexible hose will shrink. Preferably, the flexible hose is made of rubber material, or a friction layer is provided on the surface of the flexible hose. When the friction layer contacts the inner wall of the shell, it can provide a sufficiently large friction force. Under the action of the friction force, the blades can quickly stop rotating and remain motionless, that is, the brake (shutdown) of the water turbine generator mechanism is realized, and the blades can be stopped at any angle.

[0009] Furthermore, the filler is gas or liquid.

[0010] Furthermore, a groove is provided on the outer peripheral side of the movable blade, and the flexible hose is laid in the groove. When the flexible hose is in a contracted state, it does not protrude outside the contour of the movable blade; when the flexible hose is in an expanded state, it protrudes outside the contour of the movable blade.

[0011] Furthermore, the filling pump is connected to the movable blade controller and operates under the control of the movable blade controller.

[0012] Furthermore, the middle part of the outer shell is a spherical part, which is a spherical shell shape obtained by intercepting the middle part of a hollow sphere by two parallel planes; the notches on both sides of the spherical part are respectively provided with a water inlet and a water outlet; the diameter of the water inlet gradually decreases from the outside to the inside; and the diameter of the water outlet gradually increases from the inside to the outside.

[0013] Furthermore, the spherical seat is installed in the spherical part, and the spherical seat and the spherical part are arranged coaxially, so that the central axis of the spherical part is also the rotation central axis of the orbital revolution of the movable blade.

[0014] Furthermore, an angle adjustment device for adjusting the angle of the movable blade is arranged inside the spherical seat.

[0015] Furthermore, the movable blade includes a blade body and a blade shaft, the blade body is fixed on the blade shaft, one end of the blade shaft passes through the spherical seat and is connected to the angle adjustment device, and under the action of the angle adjustment device, the movable blade rotates with the blade shaft as the rotation axis.

[0016] Furthermore, after all the movable blades are rotated to a specific angle, the sheets of all the movable blades can be spliced ​​to form an isolation structure, which can cut off the inner cavity of the spherical part from the middle to achieve a valve-like effect; at the same time, the filling pump in the flexible telescopic mechanism can also work together to expand the flexible tube to completely fill the gaps between adjacent movable blades and between the movable blades and the inner wall of the outer shell, thereby improving the sealing ability of the isolation structure and preventing water from passing through the spherical part, thereby further ensuring the sealing and isolation effect of the isolation structure.

[0017] Furthermore, the sheet body is in the shape of a fan ring; and after all the sheet bodies are rotated to be perpendicular to the central axis of the spherical part, the isolation structure formed by the combination is a circular ring.

[0018] Furthermore, a central hole is arranged in the middle of the blade shaft, an interface of the flexible hose is arranged in the central hole of the blade shaft, and a filling pump conveys the filling material from the interface.

[0019] Furthermore, the impeller mechanism also includes fixed blades, which are fixed on the spherical seat and cannot rotate on their own.

[0020] Furthermore, the fixed blades and the movable blades are arranged at intervals. Under the control of the angle adjustment device, after the movable blades rotate to a specific angle, they can be spliced ​​with the fixed blades in sequence to form the aforementioned isolation structure to achieve the function of a valve.

[0021] Furthermore, flexible telescopic mechanisms are also provided on the sides of the fixed blades. The corresponding flexible telescopic mechanisms are used to fill the gaps between adjacent movable blades and fixed blades or between the fixed blades and the inner wall of the housing.

[0022] Furthermore, the angle adjustment device includes a motor, a screw, a slider and a connecting rod mechanism, one end of the connecting rod mechanism is connected to the slider, and the other end is connected to the blade shaft. When the slider moves on the screw, the connecting rod mechanism drives the blade shaft to rotate; that is, the connecting rod mechanism is used to convert the linear motion of the slider into the rotational motion of the movable blade.

[0023] In some specific embodiments, the specific structure of the angle adjustment device may also be: including a motor, a worm and a gear, the two ends of the worm are respectively rotatably fixed on the two side end surfaces of the spherical seat, the gear is fixed on the blade shaft, and the worm is meshed with the gear, and one end of each worm is connected to a motor, and under the drive of the corresponding motor, the worm drives the gear to rotate, and then drives the corresponding movable blade to rotate. Of course, the angle adjustment device can also adopt any other driving structure in the prior art that can drive the blade shaft to rotate.

[0024] In some embodiments, the body of the movable blade of the impeller mechanism may include two panels, and the flexible telescopic mechanism is arranged between the two panels. When the flexible telescopic mechanism is in a contracted state, the entire flexible telescopic mechanism is hidden in the space between the two panels; when the flexible telescopic mechanism is in an expanded state, the flexible telescopic mechanism can protrude from the sides of the movable blade to fill the corresponding gap.

[0025] Furthermore, end covers and a main shaft are respectively provided on both sides of the spherical seat; a shaft sleeve is provided on the outer sleeve of the main shaft; and the shaft sleeve is fixedly connected to the outer shell through a fixing piece.

[0026] Furthermore, the main shaft is connected to the generator outside the housing through a transmission shaft. Preferably, a through hole is provided at the center of the main shaft, and the through hole can be used to arrange a cable, one end of the cable is connected to the motor of the angle adjustment device, and the other end is connected to the carbon ring at the end of the main shaft; Furthermore, the shaft sleeve is arranged in the water inlet part, and a guide vane is arranged on the outside of the shaft sleeve, and the guide vane is used to adjust the impact direction of the water flow so that the water flow flows to the surface of the blade at a suitable angle to improve the energy conversion efficiency.

[0027] Furthermore, the angle of the guide vane can also be adjusted, and the change of the guide vane angle is coupled with the change of the blade angle. That is, when the blade angle changes, the guide vane angle also changes synchronously, so that after the water flows through the guide vane, it always drives the blades of the impeller mechanism to rotate at an angle that meets the requirements of fluid mechanics to ensure energy conversion efficiency.

[0028] The beneficial effects and related working principles of the present invention are summarized as follows: 1. During the use of the hydro-turbine power generation mechanism of the present application, if the power generation power needs to be adjusted, the angle of the movable blade can be changed by making the movable blade rotate around the blade axis through the angle adjustment device. The basic principle is that the angle of the movable blade determines the direction and intensity of the water flow hitting the surface of the movable blade, thereby affecting the torque and speed, and finally achieving the adjustment of the power generation efficiency. The adjustment method adopted in the present application can ensure that the adjustment effect is more accurate, rapid and flexible. 2. In some scenarios, the hydroelectric generating mechanism in the present application can control all movable blades to rotate to a specific angle, so that all movable blades are spliced ​​to form an isolation structure. At the same time, through the coordination of the flexible telescopic mechanism, the flexible hose expands to seal and fill the gaps between adjacent movable blades and the gaps between the movable blades and the inner wall of the outer shell; so that the water flow is completely cut off in the spherical part and cannot continue to flow downstream; in this way, the turbine itself can realize the function of the gate system, and there is no need to set up an additional gate system, which can save the construction and production costs of the corresponding gate structure; it is especially suitable for use in small and micro hydropower stations and irrigation water conservancy systems. Of course, in the scheme where only movable blades are provided, the movable blades can be rotated to an angle parallel to the direction of the water flow, so that when the water flows through, the movable blades will not rotate, that is, when the water flows normally, the hydroelectric generating mechanism can also remain in a stopped state; 3. When braking is required, the water turbine power generation mechanism in the present application can pump filler into the flexible hose through the filling pump of the flexible telescopic mechanism, so that the flexible hose expands and then fits tightly against the inner wall of the shell, thereby increasing the friction between the blades and the inner wall of the shell, and finally stopping the orbital motion of the movable blades quickly, so that the braking action of the water turbine responds more promptly and effectively; and the present invention can achieve shutdown when the movable blades are unfolded, that is, the blades are unfolded to any angle, and water can flow through the blades of the impeller mechanism without the blades revolving, which facilitates the passage of fish or other objects in the water, does not affect the return spawning of related fish, and is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 is a schematic diagram of the impeller mechanism in Example 1 of the present invention; Figure 3 is a schematic diagram of the impeller mechanism forming an isolation structure in Example 1 of the present invention; Figure 4 is a schematic diagram of the case where the blades are parallel to the water flow direction in Embodiment 1 of the present invention; Figure 5 is a schematic structural diagram of the movable blade in Embodiment 1 of the present invention; Figure 6 is a schematic diagram of Example 1 of the present invention after omitting the impeller mechanism; Figure 7 is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 8 is a schematic structural diagram of an impeller mechanism in Embodiment 2 of the present invention; Fig. 9 It is an axial schematic diagram of the impeller mechanism in Example 2 of the present invention when forming an isolation structure; In the figure: 1. outer shell; 11. spherical part; 12. water inlet part; 13. water outlet part; 21. spherical seat; 22. movable blades; 221. sheet body; 222. blade shaft; 23. main shaft; 24. sleeve; 25. end cover; 26. guide vane; 27. fixing part; 28. fixed blade; 3. generator; 31. floating platform; 32. transmission shaft; 41. motor; 42. screw rod; 43. slider; 44. connecting rod mechanism; 5. flexible telescopic mechanism. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art.

[0031] Example 1 like Figure 1-5 As shown, this embodiment is a water wheel power generation mechanism, including a shell 1, an impeller mechanism is arranged inside the shell 1, the impeller mechanism is connected to the generator 3, and drives the generator 3 to generate electricity; the impeller mechanism includes a spherical seat 21, and a circle of movable blades 22 are arranged on the outer side of the spherical seat 21; a flexible telescopic mechanism 5 is arranged on the movable blades 22; the flexible telescopic mechanism 5 has the function of filling the gap between adjacent movable blades 22 or between the movable blades 22 and the inner wall of the shell 1.

[0032] In this embodiment, the flexible telescopic mechanism 5 includes a flexible hose, which is made of rubber material. The flexible hose is connected to a filling pump, which is used to pump filling material into or out of the flexible hose. When the filling material is pumped in, the flexible hose will expand, and when the filling material is pumped out, the flexible hose will shrink. The filling material is gas or liquid. The filling pump is connected to the controller of the movable blade 22 and works under the control of the controller of the movable blade 22.

[0033] In this embodiment, a groove is provided on the outer peripheral side of the movable blade 22, and the flexible hose is laid in the groove. When the flexible hose is in a contracted state, it does not protrude outside the contour of the movable blade 22; when the flexible hose is in an expanded state, it protrudes outside the contour of the movable blade 22.

[0034] In this embodiment, the middle part of the housing 1 is a spherical part 11, which is a spherical shell obtained by cutting the middle part of a hollow sphere with two parallel planes; the notches on both sides of the spherical part 11 are respectively provided with a water inlet 12 and a water outlet 13; the diameter of the water inlet 12 gradually decreases from the outside to the inside; the diameter of the water outlet 13 gradually increases from the inside to the outside. The spherical seat 21 is installed in the spherical part 11, and the spherical seat 21 is coaxially arranged with the spherical part 11, so that the central axis of the spherical part 11 is also the rotational central axis of the active blade 22. An angle adjustment device for adjusting the angle of the active blade 22 is arranged inside the spherical seat 21.

[0035] In this embodiment, the movable blade 22 includes a sheet body 221 and a blade shaft 222. The sheet body 221 is fixed on the blade shaft 222. One end of the blade shaft 222 passes through the spherical seat 21 and is connected to the angle adjustment device. Under the action of the angle adjustment device, the movable blade 22 rotates with the blade shaft 222 as the rotation axis. A central hole is provided in the middle of the blade shaft 222. The interface of the flexible hose is provided in the central hole of the blade shaft 222. The filling pump delivers the filling material from the interface. When all the movable blades 22 are rotated to a specific angle, all the movable blades 22 can be spliced ​​to form an isolation structure. The isolation structure can cut off the inner cavity of the spherical part 11 from the middle to achieve a valve-like effect. At the same time, the filling pump in the flexible telescopic mechanism 5 can also work in coordination to expand the flexible tube to completely fill the gaps between adjacent movable blades 22 and between the movable blades 22 and the inner wall of the housing 1, thereby improving the sealing ability of the isolation structure, so that the water flow cannot pass through the spherical part 11 at all, and further ensuring the sealing and isolation effect of the isolation structure. In this embodiment, the sheet body 221 is in the shape of a fan ring; and after all the sheet bodies 221 are rotated to be perpendicular to the central axis of the spherical portion 11, the isolation structure formed by the combination is a circular ring.

[0036] In this embodiment, the angle adjustment device includes a motor 41, a screw rod 42, a slider 43 and a connecting rod mechanism 44. One end of the connecting rod mechanism 44 is connected to the slider 43, and the other end is connected to the blade shaft 222. When the slider 43 moves on the screw rod 42, the connecting rod mechanism 44 drives the blade shaft 222 to rotate; that is, the connecting rod mechanism 44 is used to convert the linear motion of the slider 43 into the rotational motion of the movable blade 22.

[0037] In this embodiment, end covers 25 and main shaft 23 are respectively provided on both sides of the spherical seat 21; the outer sleeve of the main shaft 23 is provided with a shaft sleeve 24; the shaft sleeve 24 is fixedly connected to the outer shell 1 through a fixing member 27; the main shaft 23 is connected to the generator 3 outside the outer shell 1 through a transmission shaft 32.

[0038] In this embodiment, the sleeve 24 is arranged in the water inlet 12, and a guide vane 26 is arranged outside the sleeve 24. The guide vane 26 is used to adjust the impact direction of the water flow so that the water flow flows to the surface of the blade at a suitable angle to improve the energy conversion efficiency. The main shaft 23 is connected to the generator 3 outside the housing 1 through the transmission shaft 32. The generator 3 is arranged on a floating platform 31, which can float on the water surface and automatically rise and fall with the water surface. The transmission shaft 32 adopts a telescopic structure; in this way, when the height of the generator 3 changes, the transmission shaft 32 can always transmit the rotation of the turbine to the generator 3.

[0039] During the operation of the hydro-turbine power generation mechanism in this embodiment, if the power generation power needs to be adjusted, the angle adjustment device can be used to make the movable blades 22 rotate around the blade shaft 222 as the center, thereby changing the angle of the movable blades 22 and finally adjusting the power generation efficiency; if the water flow needs to be cut off, all the movable blades 22 can be controlled to rotate to a specific angle (that is, rotated to be perpendicular to the central axis of the spherical part 11), so that all the movable blades 22 are spliced ​​to form an isolation structure, and at the same time, the flexible telescopic mechanism 5 cooperates to expand the flexible hose, and the gaps between adjacent movable blades 22 and the gaps between the movable blades 22 and the inner wall of the shell 1 are sealed and filled; so that the water flow is cut off in the spherical part 11 and cannot continue to flow downstream; in this way, the turbine itself can realize the function of the gate system, and there is no need to set up an additional gate system, which can save the construction and production costs of the corresponding gate structure; In addition, when emergency braking is required, the water turbine generator mechanism in this embodiment can pump filler into the flexible hose through the filling pump of the flexible telescopic mechanism 5, so that the flexible hose expands and then fits tightly against the inner wall of the outer shell 1, thereby increasing the friction between the two, and finally the orbital motion of the movable blades 22 is quickly stopped, so that the braking action of the water turbine responds more promptly and effectively; that is, the present invention can achieve shutdown when the movable blades 22 are unfolded, that is, the water flows normally through the blades of the impeller mechanism, but the blades do not revolve, which facilitates the passage of fish or other objects in the water, does not affect the return spawning of related fish, and is environmentally friendly.

[0040] Example 2 like Figure 7-9 As shown, the difference between this embodiment and embodiment 1 is that: in this embodiment, the impeller mechanism includes both movable blades 22 and fixed blades 28, the movable blades 22 include a sheet body 221 and a blade shaft 222, the sheet body 221 is fixed on the blade shaft 222, one end of the blade shaft 222 passes through the spherical seat 21 and is connected to the angle adjustment device, and under the action of the angle adjustment device, the movable blade 22 rotates with the blade shaft 222 as the rotation axis. A central hole is provided in the middle of the blade shaft 222, and the interface of the flexible hose is provided in the central hole of the blade shaft 222. The filling pump transports the filling material from the interface, and the filling material can be air. The specific structure and principle of the flexible telescopic mechanism 5 are similar to those of an inflatable bicycle tire.

[0041] In this embodiment, the fixed movable blade 22 is directly fixed on the spherical seat 21 and cannot rotate. A flexible telescopic mechanism 5 is also provided on the sides of the fixed blade 28. The corresponding flexible telescopic mechanism 5 is used to fill the gap between the adjacent movable blade 22 and the fixed blade 28 or between the fixed blade 28 and the inner wall of the housing 1.

[0042] In this embodiment, the fixed blade 28 and the movable blade 22 are arranged at intervals. Under the control of the angle adjustment device, after the movable blade 22 rotates to a specific angle, it can be spliced ​​with the fixed blade 28 in sequence to form an isolation structure. Then, in conjunction with the fixed blade 28 and the flexible telescopic mechanism 5 on the movable blade 22, the spherical part 11 can be completely closed to achieve the effect of a valve.

[0043] Example 3 The main difference between this embodiment and embodiment 1 is that: in this embodiment, the body 221 of the movable blade 22 is a curved surface; and the angle adjustment device in this embodiment includes a motor 41, a worm gear and a gear, the two ends of the worm gear are respectively rotatably fixed on the two side end surfaces of the spherical seat 21, the gear is fixed on the blade shaft 222, and the worm gear is meshed with the gear, one end of each worm gear is connected to a motor 41, and under the drive of the corresponding motor 41, the worm gear drives the gear to rotate, thereby driving the corresponding movable blade 22 to rotate.

[0044] A person skilled in the art can clearly know the difference between the solution in this embodiment and embodiment 1 based on the text description, so no drawings are provided.

[0045] Example 4 The main difference between this embodiment and embodiment 1 is that in this embodiment, the blade 221 is a curved surface, and a thickened layer is provided on the back surface of the blade 221 to prevent cavitation from damaging the back of the blade and extend the service life of the blade.

[0046] A person skilled in the art can clearly know the difference between the solution in this embodiment and embodiment 1 based on the text description, so no drawings are provided.

[0047] The above are only some embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have combinations and modifications of the aforementioned various technical features. Without departing from the spirit and scope of the present invention, those skilled in the art may improve, modify, or replace the present invention with equivalents, or apply the structure or method of the present invention to other fields to achieve the same effect, which all fall within the scope of protection included in the present invention.

Claims

1. A water turbine generator mechanism, comprising a housing, an impeller mechanism is arranged inside the housing, the impeller mechanism is connected to a generator and drives the generator to generate electricity; characterized in that: The impeller mechanism comprises a spherical seat, and a circle of movable blades is arranged on the outer side of the spherical seat; a flexible telescopic mechanism is arranged on the movable blades; the flexible telescopic mechanism has the function of filling the gap between adjacent movable blades or between the movable blades and the inner wall of the shell.

2. The hydroelectric power generation mechanism according to claim 1, characterized in that: The flexible telescopic mechanism comprises a flexible hose, which is connected to a filling pump. The filling pump is used to pump filling material into or out of the flexible hose. When the filling material is pumped in, the flexible hose will expand, and when the filling material is pumped out, the flexible hose will shrink.

3. The hydroelectric power generation mechanism according to claim 2, characterized in that: The filler is gas or liquid.

4. The water turbine power generation mechanism according to claim 2, characterized in that: A groove is arranged on the outer peripheral side of the movable blade, and the flexible hose is laid in the groove. When the flexible hose is in a contracted state, it does not protrude outside the contour of the movable blade; when the flexible hose is in an expanded state, it protrudes outside the contour of the movable blade.

5. The water turbine power generation mechanism according to claim 2, characterized in that: The filling pump is connected to the movable vane controller and operates under the control of the movable vane controller.

6. The hydroelectric power generation mechanism according to claim 1, characterized in that: The middle part of the shell is a spherical part, which is a spherical shell shape obtained by intercepting the middle part of a hollow sphere with two parallel planes; the notches on both sides of the spherical part are respectively provided with a water inlet and a water outlet; the diameter of the water inlet gradually decreases from the outside to the inside; the diameter of the water outlet gradually increases from the inside to the outside.

7. The water turbine power generation mechanism according to claim 6, characterized in that: The spherical seat is installed in the spherical part, and the spherical seat and the spherical part are coaxially arranged, so that the central axis of the spherical part is also the rotation central axis of the orbital revolution of the movable blade.

8. The water turbine power generation mechanism according to claim 1, characterized in that: An angle adjustment device for adjusting the angle of the movable blades is arranged inside the spherical seat; in a certain scenario, the angle adjustment device enables all movable blades to be spliced ​​together to form an isolation structure, and the isolation structure cuts off the inner cavity of the spherical part to achieve the effect of closing the valve.

9. The water turbine power generation mechanism according to claim 8, characterized in that: The movable blade comprises a blade body and a blade shaft, wherein the blade body is fixed on the blade shaft, one end of the blade shaft passes through the spherical seat and is connected to the angle adjustment device, and under the action of the angle adjustment device, the movable blade rotates with the blade shaft as the rotation axis.

10. The water turbine power generation mechanism according to claim 1, characterized in that: The impeller mechanism also includes fixed blades, which are fixed on the spherical seat and cannot rotate on their own. The fixed blades are spaced apart from the movable blades.

Images