TWM677115U - Closed-loop vortex micro coaxial gear hydroelectric power generation system - Google Patents

Abstract

A closed-loop circulating vortex micro coaxial gear hydraulic power generation system includes a tank, a torque drive module, an underwater blade module, and a closed siphon pipe module. The bottom of the tank is conical and equipped with a flow-stabilizing impeller and an outlet. Each closed siphon pipe of the closed siphon pipe module uses siphon action to draw liquid from the tank through the outlet and then injects it back into the tank at a tangential angle to the inner diameter of the tank, creating a vortex to increase the suction force of each closed siphon pipe. This allows the liquid to circulate between the inside and outside of the tank, and the liquid is then discharged through the outlet. The pump increases the kinetic energy of each closed siphon pipe, thereby driving the first and second impellers of the underwater blade module to rotate through the liquid circulation, which in turn drives the central shaft to rotate, and drives the main gear to drive the main shaft of the generator that meshes with it to generate electricity.

Description

Closed-loop vortex micro coaxial gear hydroelectric power generation system

This invention relates to a hydroelectric power generation system, and more particularly to a closed-loop circulating vortex micro coaxial gear hydroelectric power generation system.

Current hydroelectric power generation equipment often relies on high water levels and natural rivers, and its efficiency drops significantly at night, in rainy or windless conditions. Traditional hydroelectric power generation is also limited by terrain, water source and dam structure, making it difficult to modularize and miniaturize.

In addition, current micro-hydraulic devices mostly rely on natural drops and open water flow, making it impossible to achieve stable power generation in closed systems. Furthermore, current micro-hydraulic devices are highly dependent on terrain and water sources, making them difficult to apply in remote, indoor, or portable settings, and their application is greatly limited by terrain.

In view of this, it is clear that there is still a need to improve the equipment.

To address the aforementioned and other problems, the purpose of this invention is to provide a closed-loop circulating vortex micro coaxial gear hydraulic power generation system to improve upon the problems of the aforementioned conventional devices.

Another objective of this invention is to provide a closed-loop vortex micro coaxial gear hydroelectric power generation system that integrates water power, air pressure, solar energy, and wind power to operate in a closed environment, without relying on natural drops or external water sources, to achieve self-circulating vortex kinetic energy generation and recovery.

Another objective of this invention is to provide a closed-loop circulating vortex micro coaxial gear hydraulic power generation system, which can utilize technologies such as air pressure, tangential return water via siphon pipes, and pumping pressurization pumps to enhance the rotation of the coaxial first and second impellers and coaxial gears driven by the water vortex, thereby improving power generation efficiency.

Another objective of this invention is to provide a closed-loop circulating vortex micro coaxial gear hydroelectric power generation system, which can utilize a wind-driven third impeller to drive the first and second impellers and coaxial gears rotating in the same direction to improve power generation efficiency.

Another objective of this invention is to provide a closed-loop vortex micro coaxial gear hydroelectric power generation system that can further optimize the gas pressure propulsion and siphon return conditions through the thermal difference circulation formed by the rising hot water and the returning cool water, thereby significantly improving the overall energy conversion efficiency and start-up performance.

Another objective of this invention is to provide a closed-loop circulating vortex micro coaxial gear hydraulic power generation system, whose tank structure can be stacked vertically or connected in series horizontally, supporting modular deployment. It is simple in structure, low in cost, and suitable for manufacturing and teaching applications.

To achieve the above and other objectives, this invention provides a closed-loop circulating vortex micro coaxial gear hydraulic power generation system, comprising: a tank body, the tank body having a barrel section, a barrel bottom, and a motor chamber; the barrel bottom being a conical receiving space with a rounded top and a pointed bottom; a freely rotating flow-stabilizing impeller being disposed at the center of the bottom surface of the barrel bottom; a water outlet being disposed at the bottom center of the flow-stabilizing impeller; the barrel section being disposed at the top of the barrel bottom; the motor chamber being disposed at the top of the barrel section; and a liquid-holding area being disposed inside the tank body, the liquid-holding area covering a portion of the barrel bottom and the barrel section. A liquid-holding area is used to hold a liquid, the liquid level being at the tank body; a torque-driven module has a central shaft, a main gear, and at least one generator. The central shaft is mounted on the central axis inside the tank body and can rotate freely. The main gear is located on the central shaft and rotates with the central shaft. The main shaft of the generator has a gear that meshes with the main gear to transmit the kinetic energy of the main gear to the generator to generate and output electrical energy. The main gear and the generator are located in the motor compartment; an underwater blade module has at least one first impeller and one second blade. The system includes a set of impellers, one on the bottom of the container and the other on the central axis of the container body. When the liquid flows from the container to the outlet, the liquid flow causes the first and second impellers to rotate in the same direction, thus rotating the central axis and the main gear. A pressure pump is located at the outlet to pressurize and extract the liquid from the outlet, which is then output from one of the pump's outlets. A closed siphon module has multiple closed siphon pipes, each with an inlet and an outlet. The inlet is connected to the outlet. A closed siphon pipe ascends at an angle, encircles and connects to the tank body, and the outlet at the end of each closed siphon pipe enters the tank body through a return pipe opening in the tank body. The axial direction of each outlet pipe is tangential to the inner diameter of the tank body. Each outlet is located below the liquid level in the liquid holding area and above the bottom of the tank, and is distributed at approximately equal angles within a 360-degree angle of the inner diameter of the tank body. When the liquid flows back to the tank body from each outlet, a vortex is formed in the tank body, and the vortex rotation direction is consistent with the flow guiding direction of the steady flow impeller.

In one embodiment, a spiral flow guiding structure is provided on the inner wall of the bottom of the barrel above the flow-stabilizing impeller. The flow guiding direction of the spiral flow guiding structure is consistent with the flow guiding direction of the flow-stabilizing impeller, so as to make the liquid form a stable vortex.

In one embodiment, a water inlet valve is provided on the barrel body corresponding to the barrel body to inject the liquid into the barrel body.

In one embodiment, the invention further includes a water flow heating module disposed between the inlet and outlet of each of the water pipes, which can heat the liquid in each of the water pipes and inject it into the liquid holding area through the outlet.

In one embodiment, the invention further includes a pressurization module comprising: a sealed pressurized chamber disposed inside the barrel between the motor chamber and the barrel body; the sealed pressurized chamber contains an air pressurization chamber for pressurizing the air in the barrel body to increase the liquid water pressure in the sealed liquid-containing area and the kinetic energy of the water column in each sealed siphon pipe.

In one embodiment, a wind pressurization module is further included, comprising: a wind chamber disposed above the motor chamber, with the central axis extending into the wind chamber, the wall of the wind chamber having a plurality of wind direction guide holes connecting to the outside; and a third impeller disposed on the central axis of the wind chamber, for rotating the central axis when the third impeller is blown by the wind, and the direction of rotation of the third impeller under wind is consistent with the direction of rotation of the first impeller and the second impeller under water propulsion.

In one embodiment, a pressure relief valve is provided in the barrel corresponding to the sealed pressurized chamber. The pipeline of the pressure relief valve connects the sealed pressurized chamber and the non-sealed wind chamber, and its exhaust port faces the third impeller. When the sealed pressurized chamber is depressurized, the discharged air pressure can form a vortex-assisted torque on the third impeller to increase the rotational speed of the central shaft.

In one embodiment, the power for the water pump and/or the water heating module is supplied by a solar power generation module.

In one embodiment, the water heating module is an electric heating wire, a heat-conducting plate, or a solar-powered heat-conducting pipe module.

In one embodiment, the spiral flow guiding structure is a series of spiral flow guiding grooves or a micro-convex structure.

In one embodiment, the generator is a miniature generator.

To achieve the above and other objectives, the invention further includes: a water heating module disposed between the inlet and outlet of each water pipe, capable of heating the liquid in each water pipe and injecting it into the liquid holding area through the outlet; a pressurization module having a sealed pressurized chamber disposed inside the tank corresponding to the motor compartment and the tank body, the sealed pressurized chamber containing an air pressurization chamber for pressurizing the air in the tank body; A wind-powered pressurization module includes a wind chamber and a third impeller. The wind chamber is located above the motor chamber, and the central axis extends into the wind chamber. The wall of the wind chamber has multiple wind direction guide holes connecting to the outside. The third impeller is located on the central axis of the wind chamber and is used to drive the central axis to rotate when the third impeller is blown by the wind. The direction of the third impeller's rotation under wind is consistent with the direction of the rotation of the first impeller and the second impeller under water propulsion.

The article "a" or "that" used throughout this work shall be interpreted as including one or at least one, and a single concept may also include a plural form, unless it clearly indicates a different meaning and has a limiting effect.

The directions or similar terms used throughout this work, such as front, back, left, right, top, bottom, inside, outside, side, etc., are mainly for reference to the directions in the diagram. Each direction or similar term is only used to help explain and understand the various embodiments of this work and is not intended to limit this work.

To make the above and other purposes, features and advantages of this invention more apparent, preferred embodiments of this invention are given below, along with detailed explanations in conjunction with diagrams. Symbols marked with the same symbols in different diagrams are considered identical and their explanations will be omitted.

Figures 1 and 2 illustrate a first embodiment of this invention. The barrel 10 in this embodiment includes a barrel body 11 and a barrel bottom 12. The barrel bottom 12 is a conical liquid-containing space that is wider at the top and narrower at the bottom (liquid L can be injected into the barrel body 11 and the barrel bottom 12 through a water inlet valve 112), making it easier for the liquid inside to form a vortex flow when draining from the bottom. Of course, a flow-stabilizing impeller 121 with upward-facing blades and a water outlet 1211 at the bottom can be provided in the center of the barrel bottom 12, and a spiral flow guide structure 122 can also be added to the wall of the barrel bottom 12, all of which help to form a vortex quickly and stably.

To ensure the circulation of the liquid L contained in the barrel body 11 and the barrel bottom 12, a closed siphon pipe module 50 can be installed around the barrel body 10. This module draws the liquid from the bottom of the barrel body 10 and returns it from a higher position back into the barrel body 10, creating a circulating water flow. Specifically, the closed siphon pipe module 50 can consist of multiple closed siphon pipes 51 (e.g., 8, but not limited to) arranged at equal angles around the barrel body 10. The inlet 511 of each closed siphon pipe 51 is connected to the outlet 1211. After rising at an angle, each closed siphon pipe 51 enters the barrel body 11 through the return pipe opening 111, then descends a short distance towards the tangential direction of the inner diameter of the barrel body 11. The liquid outlet 512 is formed, so each closed siphon pipe 51 can have a siphon effect, which can vortex discharge the water inside the tank 10, that is, the liquid holding area 101, from the bottom 12 of the tank and enter each closed siphon pipe 51. Then, by applying its siphon effect, it combines with the 8 tangential directions to flow back to the tank body 11 and form a vortex. Of course, the direction of the vortex is consistent with the direction of the guiding vortex formed by the stabilizing impeller 121 and the spiral guide structure 122.

When the liquid L inside the tank 10 can continuously circulate inside and outside the tank 10 due to the sufficient kinetic energy generated by the conical bottom 12, the flow-stabilizing impeller 121 of the bottom 12, and the spiral guide structure 122 of the bottom 12, a freely rotatable central shaft 21 can be erected on the central axis of the tank 10. A first impeller 31 is set on the central shaft 21 corresponding to the position of the bottom 12 (below the liquid surface of the liquid L), and a second impeller 32 is set on the position of the tank body 11 (also below the liquid surface of the liquid L). When the liquid L vortexes downward, it can drive the underwater blade module 30, i.e., the first impeller 31 and the second impeller 32, to rotate in the same direction, and synchronously drive the central shaft 21 to rotate.

With a constantly rotating central shaft 21, a main gear 22 can be installed on the central shaft 21 on the surface of liquid L, corresponding to the motor chamber 13. Several sets (e.g., 8 sets, but not limited to) of generator motors 23 are then evenly distributed around the main gear 22. The main shaft of the generator motor 23 meshes with the main gear 22 via gear 231. Thus, when the main gear 22 rotates, it drives the generator motor 23 to generate electrical energy. The electrical energy is then electrically connected to an energy storage module BT to store the energy for future use by electrical devices such as lighting equipment Ea, WIFI equipment Eb, or electrical equipment Ec.

In order to increase the liquid circulation flow, a water pump 40 can be installed between the outlet 1211 and the inlet 511. The water pump 40 carries the liquid L discharged from the outlet 1211 and pressurizes it before discharging it into the inlet 511 through its outlet 41, thereby increasing the liquid circulation flow.

Additionally, referring to Figures 1 and 2, and longitudinally to Figures 3 through 9, in a further embodiment, to increase the liquid circulation flow, a water flow heating module 60 can be added inside each of the closed siphon pipes 51 to heat the liquid L flowing back into the tank body 11. The water flow heating module 60 enhances the upward kinetic energy and stability of the water flow through thermal conduction or electrothermal methods. When the outlet 512 of each closed siphon pipe 51 enters below the liquid surface in the tank body 11, it has a water temperature cooling effect, reducing the temperature of the returning liquid L and strengthening the internal thermal pressure difference of the system. Through the thermal difference circulation formed by the rising hot liquid and the cooling returning liquid, the gas pressure propulsion and siphon return conditions are further optimized, significantly improving the overall energy conversion efficiency and start-up performance.

Alternatively, air pressure can be used to increase the flow rate of liquid L. For example, an air pressure module 70 can be installed between the motor chamber 13 and the barrel body 11. That is, a sealed air chamber 71 that can pressurize and depressurize pressurizes the gas in the barrel body 11, which will also pressurize the liquid L at the same time, thereby increasing the flow kinetic energy of the liquid L.

Furthermore, wind power can be used to assist the underwater blade module in rotating the central shaft 21. Specifically, a wind chamber 81 can be installed above the motor compartment 13, and the central shaft 21 can be extended into the wind chamber 81. A third impeller 83, suitable for wind propulsion, can be installed on the central shaft 21 of the wind chamber 81, so that the third impeller 83 is pushed by the wind and rotates the central shaft 21 together, thereby increasing the torque of the central shaft 21. Furthermore, a wind direction guide hole 82 can be provided on the wall of the wind chamber 81, so that the guided wind can more efficiently push the third impeller 83, thereby improving the rotational efficiency of the third impeller 83.

Furthermore, the sealed pressure chamber 71 can also be depressurized by a pressure relief valve 811 to regulate its pressure. The pressure relief valve 811 is connected to the sealed pressure chamber 71 by a pipeline, and the other end of the pipeline is connected to an exhaust port 812. The exhaust port 812 is located in the wind chamber 81 and is directly opposite the third impeller 83. In this way, the air pressure released by the sealed pressure chamber 71 can be used to assist in driving the third impeller 83 and improve the power generation efficiency.

It is worth mentioning that the power required for the operation of the water pump 40, the water heating module 60, and the air pressure module 70 can be any type of electricity, and of course, it can also be electrically connected to the solar power generation module SP for green energy supply.

In summary, traditional hydroelectric power generation equipment relies heavily on natural drops and open water flows, which are significantly less efficient than this invention. This invention offers advantages such as self-sufficiency in power supply for remote and off-grid areas, disaster relief and temporary backup power systems, and excellent scalability. Specifically, 1. This system does not rely on external rivers or power grids and can operate continuously in a closed loop, making it suitable for areas without stable power sources. Through solar assistance and a pneumatic drive mechanism, it can automatically start generating electricity to supply basic needs such as small appliances, lighting, and mobile phone charging. It can also provide basic power for Wi-Fi, small drones, and monitoring stations. 2. In the event of a disaster or power outage, this system can be quickly deployed, starting with local sunlight and a small amount of water. It features closed-loop operation, no need for water replenishment, and self-pressurization and self-driving characteristics, making it suitable for disaster relief or emergency lighting. 3. It can be deployed in farmland or greenhouses with low-power devices (such as soil moisture sensors, automatic irrigation valves, and microcontrollers). Even without commercial power, the system can provide a stable voltage output, supporting low-energy smart agriculture operations and expanding into a smart agriculture and remote sensing power supply system. Through modular design, dozens or hundreds of units can be connected in series to form a distributed micro-power plant, providing centralized power to schools, community facilities, lighting, and energy storage systems. It has the advantages of expansion flexibility, easy maintenance and integration of multiple energy sources (wind/water/heat/solar), and can be expanded into a multi-module micro green energy power station.

Although the present invention has disclosed the preferred embodiments using the foregoing examples, it is not intended to limit the invention. Any modifications and alterations made by those skilled in the art to the foregoing embodiments without departing from the spirit and scope of the invention shall still fall within the technical scope protected by the invention. Therefore, the scope of protection of the invention shall include all changes within the meaning and equivalent scope of the appended patent claims. Furthermore, when the foregoing embodiments can be combined, the invention includes embodiments with any combination.

10: Tank Body 101: Liquid Holding Area 11: Tank Body 111: Return Pipe Inlet 112: Water Injection Valve 12: Tank Bottom 121: Flow Stabilizing Impeller 1211: Water Outlet 122: Spiral Flow Guide Structure 13: Motor Chamber 20: Torque Drive Module 21: Central Shaft 22: Main Gear 23: Generator 231: Gear 30: Underwater Blade Module 31: First Impeller 32: Second Impeller 40: Water Pumping and Pressurizing Pump 41: Output Outlet 50: Closed Siphon Pipe Module 51: Closed Siphon Pipe 511: Liquid Inlet 512: Liquid Outlet 60: Water Flow Heating Module 70: Air Pressure Pressurizing Module 71: Sealed pressurized chamber; 80: Wind power pressurization module; 81: Wind chamber; 811: Pressure relief valve; 812: Exhaust port; 82: Wind direction guide; 83: Third impeller; SP: Solar power generation module; BT: Energy storage module; L: Liquid.

Figure 1 is a system architecture diagram of the closed-loop circulating vortex micro coaxial gear hydraulic power generation system of this invention. Figure 2 is a front sectional view of one embodiment of this invention. Figure 3 is a front sectional view of another embodiment of this invention. Figure 4 is an external view of another embodiment of this invention. Figure 5 is a three-dimensional view of the torque drive module, underwater blade module, and third impeller of one embodiment of this invention. Figure 6 is a top view of the torque drive module of multiple generators of one embodiment of this invention. Figure 7 is a top view of the closed siphon water pipe module of one embodiment of this invention for recovering liquid and forming vortex. Figure 8 is a schematic diagram of the connection between the steady-flow impeller, the pumping and pressurizing pump and the closed siphon water pipe module of the closed circulating vortex micro coaxial gear hydraulic power generation system of this invention; Figure 9 is a schematic diagram of the closed siphon water pipe rising obliquely to form a siphon effect in an embodiment of this invention.

10: Barrel Body

101: Liquid Storage Area

11: Barrel Body

111: Return pipe port

112: Water injection valve

12: Bottom of the bucket

121: Steady Flow Impeller

1211: Outlet

122: Spiral flow guide structure

13:Motor room

20: Torque Drive Module

21: Central Axis

22: Main Gear

23: Generator

231: Gears

30: Underwater blade module

31: First impeller

32: Second impeller

40: Water booster pump

41: Export

50: Closed siphon pipe module

51: Close the siphon pipe

511: Liquid inlet

512:Liquid outlet

60: Water flow heating module

70: Air Pressure Boosting Module

71: Sealed Pressure Chamber

80: Wind-powered pressurization module

81: Wind Chamber

811: Pressure relief valve

812: Exhaust port

82: Wind direction guide hole

83: Third impeller

SP: Solar power generation module

BT: Energy Storage Module

Claims (12)

A closed-loop circulating vortex micro coaxial gear hydroelectric power generation system includes: a tank body, which has a tank body, a tank bottom, and a motor chamber inside. The tank bottom is a conical receiving space with a rounded top and a pointed bottom. A freely rotating flow stabilizer impeller is provided at the center of the bottom surface of the tank bottom, and a water outlet is provided at the bottom center of the flow stabilizer impeller. The tank body is located at the top of the tank bottom, and the motor chamber is located at the top of the tank body. The tank body has a liquid holding area inside, which covers a portion of the tank bottom and the tank body. The liquid holding area is used to hold a liquid, and the liquid level is located at the tank body. A torque drive module has a central shaft, a main gear, and at least one generator. The central shaft is mounted on the central axis inside the barrel and can rotate freely. The main gear is located on the central shaft and rotates with the central shaft. The main shaft of the generator is equipped with a gear that meshes with the main gear to transmit the kinetic energy of the main gear to the generator to generate and output electrical energy. The main gear and the generator are located in the motor compartment. An underwater blade module having at least one first impeller and one second impeller, respectively mounted on the central axis corresponding to the bottom and body of the tank, so that when the liquid in the holding area flows towards the outlet, the liquid flow respectively drives the first impeller and the second impeller to rotate in the same direction, thereby driving the central axis and the main gear to rotate; a water pump, located at the outlet, for pressurizing and extracting the liquid in the outlet and outputting it from one of the outlets of the water pump; and A closed siphon water pipe module has multiple closed siphon water pipes, each with an inlet and an outlet. The inlet is connected to the outlet. Each closed siphon water pipe slopes upwards, encircles and connects to the tank body. The outlet at the end of each closed siphon water pipe enters the tank body through a return pipe opening in the tank body. The diameter of each outlet pipe is axially... The direction is tangential to the inner diameter of the barrel body. Each of the liquid outlets is located below the liquid level in the liquid holding area and above the bottom of the barrel, and is distributed at approximately equal angles within a 360-degree angle of the inner diameter of the barrel body. When the liquid flows back to the barrel body from each of the liquid outlets, a vortex is formed in the barrel body, and the vortex rotation direction is consistent with the flow guiding direction of the stabilizing impeller. As described in claim 1, in the closed-loop circulating vortex micro coaxial gear hydraulic power generation system, a spiral flow guiding structure is provided on the inner wall of the bottom of the tank above the stabilizing impeller. The flow guiding direction of the spiral flow guiding structure is consistent with the flow guiding direction of the stabilizing impeller, so as to make the liquid form a stable vortex. The closed-loop circulating vortex micro coaxial gear hydraulic power generation system as described in claim 1 or 2, wherein a water injection valve is provided on the barrel body corresponding to the barrel body to inject the liquid into the barrel body. The closed-loop circulating vortex micro coaxial gear hydraulic power generation system as described in claim 1 or 2 further includes a water flow heating module, which is disposed between the liquid inlet and the liquid outlet of each water pipe, and can heat the liquid in each water pipe and inject it into the liquid holding area through the liquid outlet. The closed-loop circulating vortex micro coaxial gear hydraulic power generation system as described in claim 1 or 2 further includes a sealed pressure chamber located inside the tank, corresponding to the motor room and the tank body, for pressurizing the air in the tank body, thereby increasing the liquid water pressure in the sealed liquid-containing area and the kinetic energy of the water column in each sealed siphon pipe. The closed-loop circulating vortex micro coaxial gear hydroelectric power generation system as described in claim 5 further includes a wind power pressurization module, which includes: a wind chamber located above the motor chamber, with the central axis extending into the wind chamber, the wall of the wind chamber having multiple wind direction guide holes connecting to the outside; and a third impeller located on the central axis of the wind chamber, for rotating the central axis when the third impeller is blown by the wind, and the direction of rotation of the third impeller under wind is consistent with the direction of rotation of the first impeller and the second impeller under water propulsion. As described in claim 6, a closed-loop circulating vortex micro coaxial gear hydroelectric power generation system is provided with a pressure relief valve corresponding to the barrel of the sealed pressure chamber. The pipeline of the pressure relief valve connects the sealed pressure chamber and the non-sealed wind chamber, and its exhaust port faces the third impeller. When the sealed pressure chamber is depressurized, the discharged air pressure can form a vortex-assisted torque on the third impeller to increase the rotational speed of the central shaft. The closed-loop circulating vortex micro coaxial gear hydraulic power generation system as described in claim 4, wherein the power of the pump and/or the water flow heating module is supplied by a solar power generation module. The closed-loop circulating vortex micro coaxial gear hydroelectric power generation system as described in claim 4, wherein the water flow heating module is an electric heating wire, a heat-conducting plate, or a solar heat-conducting pipe module. The closed-loop circulating vortex micro coaxial gear hydroelectric power generation system as described in claim 2, wherein the spiral guide structure is a plurality of spiral guide channels or a micro-convex structure. The closed-loop circulating vortex micro coaxial gear hydraulic power generation system as described in claim 1 or 2, wherein the power generator is a micro generator. The closed-loop circulating vortex micro coaxial gear hydraulic power generation system as described in claim 1 or 2 further comprises: a water heating module disposed between the inlet and outlet of each of the water pipes, capable of heating the liquid in each water pipe and injecting it into the liquid holding area through the outlet; a pressure boosting module having a sealed pressure chamber disposed inside the tank corresponding to the motor chamber and the tank body, the sealed pressure chamber containing an air pressurization chamber for pressurizing the air in the tank body; and A wind-powered pressurization module includes a wind chamber and a third impeller. The wind chamber is located above the motor chamber, and a central axis extends into the wind chamber. The wall of the wind chamber has multiple wind direction guide holes connecting to the outside. The third impeller is located on the central axis of the wind chamber and is used to drive the central axis to rotate when the third impeller is blown by the wind. The direction of the third impeller's rotation under wind is consistent with the direction of the rotation of the first impeller and the second impeller under water propulsion.