Double-shaft power generation device

Abstract

A water jetting outlet of a water jetting pipeline is aligned with a shifting piece of a first power generation assembly, water jetted from the water jetting outlet is hit to the shifting piece, thrust for driving an outer ring supporting column to rotate by the shifting piece is provided, and the outer ring supporting column drives a rotor on an inner ring of an outer ring bearing to rotate; an outer ring stator at the top of an outer ring bearing outer ring performs magnetic induction line cutting action to generate power, water hitting a shifting piece falls onto blades of a second power generation assembly under the action of gravity, and due to the fact that the blades incline by a preset angle, the water falling onto the blades can push the blades to rotate horizontally and drive inner ring supporting columns to rotate, and therefore power generation is achieved. The inner ring rotor at the top of the inner ring bearing inner ring is driven to rotate, and the inner ring stator at the top of the inner ring bearing outer ring is subjected to magnetic induction line cutting action for power generation. The technical problems that a traditional hydroelectric generating set only uses water flow energy for one time, the utilization efficiency of water energy is low, and the power generation efficiency is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydropower generation, and particularly relates to a dual-axis power generation device. Background Art

[0002] Traditional hydropower generating sets include a water turbine and a generator. The water turbine converts the energy of water flow into rotational mechanical energy, and drives the generator to generate electricity through the rotation of the water turbine. However, during the power generation process of traditional hydropower generating sets, the energy of water flow is only used once by the hydropower generating set, resulting in low utilization efficiency of water energy and low power generation efficiency. Summary of the Invention

[0003] The present invention provides a dual-axis power generation device to solve the technical problems that the energy of water flow is only used once by traditional hydropower generating sets, resulting in low utilization efficiency of water energy and low power generation efficiency.

[0004] In view of this, the present invention provides a dual-axis power generation device, including: a water injection pipeline, a first power generation component, and a second power generation component;

[0005] The first power generation component includes an outer stator, an outer rotor, an outer bearing, an outer support column, and a paddle. The bottom of the inner ring of the outer bearing is fixedly connected to the top of the outer support column. The outer rotor is installed on the frame at the top of the inner ring of the outer bearing, and the outer stator is installed on the frame at the top of the outer ring of the outer bearing. A plurality of vertically installed paddles are fixedly installed circumferentially on the outer surface of the outer support column;

[0006] The second power generation component includes an inner stator, an inner rotor, an inner bearing, an inner support column, and blades. The bottom of the inner ring of the inner bearing is fixedly connected to the top of the inner support column. The inner rotor is installed on the frame at the top of the inner ring of the inner bearing, and the inner stator is installed on the frame at the top of the outer ring of the inner bearing. A plurality of vertically installed blades are fixedly installed circumferentially on the bottom side of the inner support column. The bottom of the outer support column is higher than the top of the blades. The blades are inclined at a preset angle, and the distance from the end of the blade to the center of the inner support column is not less than the distance from the end of the paddle to the center of the outer support column. The inner bearing is arranged inside the inner ring of the outer bearing;

[0007] The water injection outlet of the water injection pipeline is arranged to face the paddle.

[0008] Optionally, the second power generation component further includes a support baffle and a support spring;

[0009] The supporting baffle and the supporting spring are located between the bottom of the outer ring strut and the top of the blade. One end of the supporting spring is fixedly connected to the bottom side of the supporting baffle facing the inner ring strut, and the other end of the supporting spring is fixedly connected to the side of the inner ring strut. The top of the supporting baffle is movably connected to the bottom of the outer ring strut. The bottom of the supporting baffle is inclined outward in the vertical direction, and the distance from the outermost side of the supporting baffle to the center of the inner ring strut is less than the distance from the end of the blade to the center of the inner ring strut.

[0010] Optionally, there are a plurality of supporting baffles and supporting springs, and the plurality of supporting baffles and supporting springs are arranged circumferentially around the inner ring strut.

[0011] Optionally, the preset angle is 15 degrees.

[0012] Optionally, it further includes a pressure regulating device, which is installed on the water injection pipe near the water injection outlet, and the pressure regulating device is used to regulate the water injection speed of the water injection outlet.

[0013] Optionally, the pressure regulating device includes a water pipe support frame, a rotating motor, a lead screw, and an elastic blocking gasket;

[0014] The water pipe support frame is sleeved on the water injection pipe;

[0015] The output shaft of the rotating motor is fixedly connected to one end of the lead screw. The other end of the lead screw passes through the water pipe support frame and the pipe wall of the water injection pipe and communicates with the inside of the water injection pipe. An elastic blocking gasket is fixedly connected to the end of the lead screw entering the inside of the water injection pipe.

[0016] Optionally, the lead screw extends into the inside of the water injection pipe from the pipe wall of the water injection pipe on the side facing the paddle.

[0017] Optionally, there are a plurality of outer ring rotors, and the plurality of outer ring rotors are circumferentially distributed at equal intervals on the top of the inner ring of the outer ring bearing. There are a plurality of outer ring stators, and the plurality of outer ring stators are circumferentially distributed at equal intervals on the top of the outer ring of the outer ring bearing;

[0018] There are a plurality of inner ring rotors, and the plurality of inner ring rotors are circumferentially distributed at equal intervals on the top of the inner ring of the inner ring bearing. There are a plurality of inner ring stators, and the plurality of inner ring stators are circumferentially distributed at equal intervals on the top of the outer ring of the inner ring bearing.

[0019] Optionally, it further includes a detachable housing, and the water injection outlet of the water injection pipe, the first power generation component, and the second power generation component are arranged inside the detachable housing.

[0020] Optionally, it further includes a water recovery device, which is installed below the second power generation component, and the water recovery device is used to collect the water falling below the second power generation component.

[0021] From the above technical solutions, it can be seen that the dual-axis power generation device provided by the present invention has the following advantages:

[0022] In the dual-axis power generation device provided by the present invention, the water jet outlet of the water jet pipe is aligned with the paddle of the first power generation component, and the water ejected from the water jet outlet hits the paddle, providing the thrust for the paddle to drive the outer ring strut to rotate. The outer ring strut drives the rotor on the inner ring of the outer ring bearing to rotate, and performs the action of cutting magnetic induction lines on the outer ring stator at the top of the outer ring of the outer ring bearing to generate electricity. The water hitting the paddle falls onto the blades of the second power generation component under the action of gravity. Since the blades are inclined at a preset angle, the water falling onto the blades will push the blades to rotate horizontally, driving the inner ring strut to rotate, and then driving the inner ring rotor at the top of the inner ring of the inner ring bearing to rotate, and performing the action of cutting magnetic induction lines on the inner ring stator at the top of the outer ring of the inner ring bearing to generate electricity. The dual-axis power generation device provided by the present invention realizes power generation twice by using the same part of the water flow, improves the energy utilization of the water flow while improving the power generation efficiency, and solves the technical problems that the traditional hydraulic generator set only uses the energy of the water flow once, the utilization efficiency of water energy is low, and the power generation efficiency is also low.

[0023] At the same time, in the dual-axis power generation device provided by the present invention, a pressure regulating device is installed near the water jet outlet on the water jet pipe, and the water jet speed of the water jet outlet can be adjusted through the pressure regulating device, so as to control the rotation speed of the outer ring rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a schematic cross-sectional view of the overall structure of a dual-axis power generation device provided in an embodiment of the present invention;

[0026] Figure 2 It is a schematic structural view of the first power generation component and the second power generation component provided in an embodiment of the present invention;

[0027] Figure 3 It is a schematic curve view of the lift coefficient and drag coefficient of the blades of the second power generation component changing with the angle of attack provided in an embodiment of the present invention;

[0028] Figure 4 It is a schematic view of the angle of attack between the blades of the second power generation component and the water flow direction provided in an embodiment of the present invention;

[0029] Figure 5 It is a schematic installation view of the support baffle provided in an embodiment of the present invention;

[0030] Figure 6 It is a schematic structural diagram of the pressure regulating device provided in the embodiment of the present invention;

[0031] Figure 7 It is a schematic structural diagram of the detachable housing provided in the embodiment of the present invention;

[0032] Among them, the reference numerals are:

[0033] 1. Water injection pipeline; 2. First power generation component; 2-1. Outer stator; 2-2. Outer rotor; 2-3. Outer bearing; 2-4. Outer support pillar; 2-5. Paddle; 3. Second power generation component; 3-1. Inner stator; 3-2. Inner rotor; 3-3. Inner bearing; 3-4. Inner support pillar; 3-5. Blade; 3-6. Support baffle; 3-7. Support spring; 4. Pressure regulating device; 4-1. Water pipe support frame; 4-2. Rotary motor; 4-3. Lead screw; 4-4. Elastic blocking gasket; 5. Detachable housing. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] For ease of understanding, please refer to Figure 1 and Figure 2, an embodiment of a dual-axis power generation device is provided in the present invention, which includes a water injection pipeline 1, a first power generation assembly 2 and a second power generation assembly 3. The first power generation assembly 2 includes an outer stator 2-1, an outer rotor 2-2, an outer bearing 2-3, an outer support column 2-4 and a paddle 2-5. The bottom of the inner ring of the outer bearing 2-3 is fixedly connected to the top of the outer support column 2-4. The outer rotor 2-2 is installed on the frame at the top of the inner ring of the outer bearing 2-3. The outer stator 2-1 is installed on the frame at the top of the outer ring of the outer bearing 2-3. A plurality of vertically installed paddles 2-5 are fixedly installed circumferentially on the outer surface of the outer support column 2-4. The second power generation assembly 3 includes an inner stator 3-1, an inner rotor 3-2, an inner bearing 3-3, an inner support column 3-4 and blades 3-5. The bottom of the inner ring of the inner bearing 3-3 is fixedly connected to the top of the inner support column 3-4. The inner rotor 3-2 is installed on the frame at the top of the inner ring of the inner bearing 3-3. The inner stator 3-1 is installed on the frame at the top of the outer ring of the inner bearing 3-3. A plurality of vertically installed blades 3-5 are fixedly installed circumferentially on the bottom side of the inner support column 3-4. The bottom of the outer support column 2-4 is higher than the top of the blades 3-5. The blades 3-5 are inclined at a preset angle. The distance from the end of the blades 3-5 to the center of the inner support column 3-4 is not less than the distance from the end of the paddle 2-5 to the center of the outer support column 2-4. The inner bearing 3-3 is arranged inside the inner ring of the outer bearing 2-3. The water injection outlet of the water injection pipeline 1 is arranged to face the paddle 2-5.

[0036] It should be noted that the inner ring of the outer ring bearing 2-3 is rotatable. A frame for installing the outer ring rotor 2-2 is arranged at the top of the inner ring of the outer ring bearing 2-3, and the outer ring rotor 2-2 is installed on the frame at the top of the inner ring of the outer ring bearing 2-3. The top of the outer ring support column 2-4 is connected to the bottom of the inner ring of the outer ring bearing 2-3. Therefore, the outer ring support column 2-4 can rotate. The outer ring of the outer ring bearing 2-3 is fixed. A frame for installing the outer ring stator 2-1 is arranged at the top of the outer ring of the outer ring bearing 2-3, and the outer ring stator 2-1 is installed on the frame at the top of the outer ring bearing 2-3. Therefore, the outer ring rotor 2-2 and the outer ring stator 2-1 form a structure that can cut the magnetic induction lines of the outer ring stator 2-1 by rotating the outer ring rotor 2-2 to generate electricity. The inner ring of the inner ring bearing 3-3 is rotatable. A frame for installing the inner ring rotor 3-2 is arranged at the top of the inner ring of the inner ring bearing 3-3, and the inner ring rotor 3-2 is installed on the frame at the top of the inner ring of the inner ring bearing 3-3. The top of the inner ring support column 3-4 is connected to the bottom of the inner ring of the inner ring bearing 3-3. Therefore, the inner ring support column 3-4 can rotate. The outer ring of the inner ring bearing 3-3 is fixed. A frame for installing the inner ring stator 3-1 is arranged at the top of the outer ring of the inner ring bearing 3-3, and the inner ring stator 3-1 is installed on the frame at the top of the inner ring bearing 3-3. Therefore, the inner ring rotor 3-2 and the inner ring stator 3-1 form a structure that can cut the magnetic induction lines of the inner ring stator 3-1 by rotating the inner ring rotor 3-2 to generate electricity. The water jet outlet of the water jet pipe 1 is aligned with the paddle 2-5 of the first power generation assembly 2. The water ejected from the water jet outlet hits the paddle 2-5, providing a thrust for the paddle 2-5 to drive the outer ring support column 2-4 to rotate. The outer ring support column 2-4 drives the rotor on the inner ring of the outer ring bearing 2-3 to rotate, and makes a magnetic induction line cutting action on the outer ring stator 2-1 at the top of the outer ring of the outer ring bearing 2-3 to generate electricity. The paddle 2-5 can be set as an arc structure. The water hitting the paddle 2-5 falls onto the blade 3-5 of the second power generation assembly 3 under the action of gravity. Since the blade 3-5 is inclined at a preset angle, the water falling onto the blade 3-5 will push the blade 3-5 to rotate horizontally, drive the inner ring support column 3-4 to rotate, and then drive the inner ring rotor 3-2 at the top of the inner ring of the inner ring bearing 3-3 to rotate, and make a magnetic induction line cutting action on the inner ring stator 3-1 at the top of the outer ring of the inner ring bearing 3-3 to generate electricity. The double-axis power generation device provided by the present invention realizes two power generations by using the same part of the water flow. While improving the energy utilization of the water flow, it improves the power generation efficiency, and solves the technical problems that the traditional hydraulic generator set only uses the energy of the water flow once, the utilization efficiency of water energy is low, and the power generation efficiency is also low.

[0037] In one embodiment, the preset angle is 15 degrees. The curves of the lift coefficient and drag coefficient of the blade 3-5 of the second power generation assembly 3 varying with the angle of attack obtained by software simulation are as Figure 3As shown, it can be seen that under general conditions, when the angle of attack is 15°, the difference between the lift coefficient and the drag coefficient is the largest. That is, as Figure 4 shown, when the angle of attack is 15 degrees of inclination of the blade 3-5, when falling from above the blade 3-5 onto the blade 3-5, the blade 3-5 can be best pushed to rotate.

[0038] In one embodiment, as Figure 2 and Figure 5 shown, the second power generation assembly 3 further includes a support baffle 3-6 and a support spring 3-7. The support baffle 3-6 and the support spring 3-7 are located between the bottom of the outer ring support 2-4 and the top of the blade 3-5. One end of the support spring 3-7 is fixedly connected to the bottom side of the support baffle 3-6 facing the inner ring support 3-4, the other end of the support spring 3-7 is fixedly connected to the side of the inner ring support 3-4, the top of the support baffle 3-6 is movably connected to the bottom of the outer ring support 2-4, specifically, it can be connected by a hinge. The bottom of the support baffle 3-6 is inclined outward in the vertical direction, and the distance from the outermost side of the support baffle 3-6 to the center of the inner ring support 3-4 is less than the distance from the end of the blade 3-5 to the center of the inner ring support 3-4. There are multiple support baffles 3-6 and support springs 3-7, and the multiple support baffles 3-6 and support springs 3-7 are arranged circumferentially around the inner ring support 3-4. When the amount of water ejected from the water jet outlet is very large, the work done by the gravitational potential energy generated by the water flowing down from the deflector 2-5 acts on the support baffle 3-6. After the support baffle 3-6 is pressed, the connected support spring 3-7 is compressed, and the support baffle 3-6 moves towards the axis direction of the inner ring support 3-4, and the cross-sectional area of the bottom through which water can pass increases. While ensuring pressure relief, it can also increase the contact area between the water flow and the bottom blade 3-5, and further enhance the pushing effect on the blade 3-5, and the rotation of the bottom blade 3-5 speeds up. When the amount of water ejected from the water jet outlet decreases, the support baffle 3-6 returns to the original position under the reset action of the support spring 3-7, and the cross-sectional area of the bottom through which water can pass decreases, which can increase the pressure of the water flow on the bottom and improve the thrust of the bottom blade 3-5. At the same time, at this time, the water flow contacts more the outer edge of the blade 3-5 (that is, away from the axis direction of the inner ring support 3-4). Under the same flow rate, at this time, more applied on the outer edge of the blade 3-5 can cause a greater thrust on the blade 3-5 than on the inner edge, thereby ensuring the rotation speed of the blade 3-5, further ensuring the speed of the inner ring rotor 3-2, and further ensuring the power generation efficiency.

[0039] In one embodiment, the dual-axis power generation device provided by the present invention further includes a pressure regulating device 4. The pressure regulating device 4 is installed on the water jet pipe 1 near the water jet outlet. The pressure regulating device 4 is used to regulate the water jet speed of the water jet outlet. By the pressure regulating device, the water jet speed of the water jet outlet can be regulated, so as to control the rotation speed of the outer ring rotor 2-2. As Figure 6As shown, the pressure regulating device 4 includes a water pipe support frame 4-1, a rotating motor 4-2, a lead screw 4-3, and an elastic blocking gasket 4-4. The water pipe support frame 4-1 is sleeved on the water injection pipe 1. The output shaft of the rotating motor 4-2 is fixedly connected to one end of the lead screw 4-3. The other end of the lead screw 4-3 passes through the water pipe support frame 4-1 and the pipe wall of the water injection pipe 1 and communicates with the inside of the water injection pipe 1. An elastic blocking gasket 4-4 is fixedly connected to the end of the lead screw 4-3 that enters the inside of the water injection pipe 1. When the water flow rate in the water injection pipe 1 is small, the rotating motor 4-2 controls the lead screw 4-3 to rotate forward, and the lead screw 4-3 moves into the water injection pipe 1. At this time, the elastic blocking gasket 4-4 moves into the water injection pipe 1. The cross-sectional area on the side of the water injection pipe 1 close to the rotating motor 4-2 decreases, and the pipe on the side far from the rotating motor 4-2 is not occupied. Then, the water flow in the water injection pipe 1 will more contact the outer edge of the flap 2-5, pushing the outer edge of the flap 2-5 to rotate. Compared with pushing the inner edge of the flap 2-5, the force arm increases, thereby increasing the torque on the entire outer rotor 2-2 and increasing the rotational speed of the outer rotor 2-2. When the water flow rate in the water injection pipe 1 is large, the rotating motor 4-2 controls the lead screw 4-3 to rotate in reverse, and the lead screw 4-3 moves to the outside of the water injection pipe 1. The cross-sectional area on the side of the water injection pipe 1 close to the rotating motor 4-2 increases. Since the elastic blocking gasket 4-4 is flexible, when the cross-sectional area on the side of the water injection pipe 1 close to the rotating motor 4-2 is the largest, the entire elastic blocking gasket 4-4 can completely fit the inner wall of the water injection pipe 1, and then the entire water injection pipe 1 is completely opened. At this time, the water flow in the water injection pipe 1 can pass through more smoothly and stably. In a specific application scenario, the lead screw 4-3 extends into the water injection pipe 1 from the pipe wall of the water injection pipe 1 facing the flap 2-5, so that in the state where the entire water injection pipe 1 is completely opened and the state where the elastic blocking gasket 4-4 moves into the water injection pipe 1, the water ejected from the water injection outlet can impact the outer edge of the flap 2-5, increasing the torque on the outer rotor 2-2, and thus increasing the rotational speed of the outer rotor 2-2.

[0040] In one embodiment, as Figure 2 shown, there are multiple outer rotors 2-2. The multiple outer rotors 2-2 are circumferentially distributed at equal intervals on the top of the inner ring of the outer bearing 2-3. There are multiple outer stators 2-1. The multiple outer stators 2-1 are circumferentially distributed at equal intervals on the top of the outer ring of the outer bearing 2-3, improving the power generation efficiency of the first power generation assembly 2. There are multiple inner rotors 3-2. The multiple inner rotors 3-2 are circumferentially distributed at equal intervals on the top of the inner ring of the inner bearing 3-3. There are multiple inner stators 3-1. The multiple inner stators 3-1 are circumferentially distributed at equal intervals on the top of the outer ring of the inner bearing 3-3, improving the power generation efficiency of the second power generation assembly 3.

[0041] In one embodiment, as Figure 7As shown in the figure, the dual-axis power generation device provided by the present invention further includes a detachable housing 5. The water jet outlet of the water jet pipe 1, the first power generation assembly 2, and the second power generation assembly 3 are arranged inside the detachable housing 5. The detachable housing 5 is provided to protect the first power generation assembly 2 and the second power generation assembly 3 of the dual-axis power generation device, avoiding damage to the internal components of the dual-axis power generation device caused by external factors. The frame at the top of the outer ring of the outer ring bearing 2-3 of the first power generation assembly 2 can be fixedly connected to the frame at the top of the inner ring of the inner ring bearing 3-3 of the second power generation assembly 3 through a connecting component. The bottom of the outer column 2-4 of the first power generation assembly 2 is suspended. The bottom of the inner column 3-4 of the second power generation assembly 3 can be movably connected to the inner bottom of the detachable housing 5 through a movable connecting piece.

[0042] In one embodiment, it further includes a water recovery device. The water recovery device is installed below the second power generation assembly 3. The water recovery device is used to collect the water that falls below the second power generation assembly 3, realizing the collection of the water used for power generation.

[0043] The terms "first", "second", etc. in the description of the present invention are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-axis power generation device, characterized in that, Comprising: A water jet pipe, a first power generation component, and a second power generation component; The first power generation component includes an outer stator, an outer rotor, an outer bearing, an outer support pillar, and a paddle. The bottom of the inner ring of the outer bearing is fixedly connected to the top of the outer support pillar. The outer rotor is installed on the frame at the top of the inner ring of the outer bearing, and the outer stator is installed on the frame at the top of the outer ring of the outer bearing. A number of vertically installed paddles are fixedly installed circumferentially on the outer surface of the outer support pillar; The second power generation component includes an inner stator, an inner rotor, an inner bearing, an inner support pillar, and blades. The bottom of the inner ring of the inner bearing is fixedly connected to the top of the inner support pillar. The inner rotor is installed on the frame at the top of the inner ring of the inner bearing, and the inner stator is installed on the frame at the top of the outer ring of the inner bearing. A number of vertically installed blades are fixedly installed circumferentially on the bottom side of the inner support pillar. The bottom of the outer support pillar is higher than the top of the blades. The blades are inclined at a preset angle, and the distance from the end of the blade to the center of the inner support pillar is not less than the distance from the end of the paddle to the center of the outer support pillar. The inner bearing is arranged inside the inner ring of the outer bearing; The water jet outlet of the water jet pipe is arranged facing the paddle.

2. The dual-axis power generation device according to claim 1, characterized in that The second power generation component further includes a support baffle and a support spring; The support baffle and the support spring are located between the bottom of the outer support pillar and the top of the blade. One end of the support spring is fixedly connected to the bottom side of the support baffle facing the inner support pillar, and the other end of the support spring is fixedly connected to the side of the inner support pillar. The top of the support baffle is movably connected to the bottom of the outer support pillar. The bottom of the support baffle is inclined outward in the vertical direction, and the distance from the outermost side of the support baffle to the center of the inner support pillar is less than the distance from the end of the blade to the center of the inner support pillar.

3. The dual-axis power generation device according to claim 2, characterized in that There are multiple support baffles and support springs, and the multiple support baffles and support springs are arranged circumferentially around the inner support pillar.

4. The dual-axis power generation device according to claim 1, wherein The preset angle is 15 degrees.

5. The dual-axis power generation device according to claim 1, wherein, It further includes a pressure regulating device, which is installed on the water jet pipe near the water jet outlet, and the pressure regulating device is used to regulate the water jet speed of the water jet outlet.

6. The dual-axis power generation device according to claim 5, characterized in that, The pressure regulating device includes a water pipe support frame, a rotary motor, a lead screw, and an elastic blocking gasket; The water pipe support frame is sleeved on the water jet pipe; The output shaft of the rotary motor is fixedly connected to one end of the lead screw. The other end of the lead screw passes through the water pipe support frame and the pipe wall of the water jet pipe and communicates with the inside of the water jet pipe. The end of the lead screw entering the inside of the water jet pipe is fixedly connected with an elastic blocking gasket.

7. The dual-axis power generation device according to claim 6, wherein The lead screw extends into the inside of the water jet pipe from the pipe wall of the water jet pipe on the side facing the paddle.

8. The dual-axis power generation device according to claim 1, characterized in that, There are multiple outer rotors, and the multiple outer rotors are circumferentially distributed at equal intervals on the top of the inner ring of the outer bearing. There are multiple outer stators, and the multiple outer stators are circumferentially distributed at equal intervals on the top of the outer ring of the outer bearing; There are multiple inner rotors, and the multiple inner rotors are circumferentially distributed at equal intervals on the top of the inner ring of the inner bearing. There are multiple inner stators, and the multiple inner stators are circumferentially distributed at equal intervals on the top of the outer ring of the inner bearing.

9. The dual-axis power generation device according to claim 1, characterized in that It further includes a detachable housing, and the water jet outlet of the water jet pipe, the first power generation component, and the second power generation component are arranged inside the detachable housing.

10. The dual-axis power generation device according to any one of claims 1-9, characterized in that, It further includes a water recovery device, which is installed below the second power generation component, and the water recovery device is used to collect the water that falls below the second power generation component.

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