Electric ship with external methanol power generation standard power unit

Abstract

The utility model discloses an electric ship with an external methanol power generation standard power unit, which relates to the field of ships, and adopts the technical scheme that the electric ship comprises a ship body and the methanol power generation standard power unit, the ship body comprises a propeller, a motor and a power box; the propeller is driven by a motor, and the power box is provided with a methanol power generation standard power unit; the methanol power generation standard power unit comprises a methanol fuel tank, a methanol range extender and a power battery pack; a liquid outlet of the methanol fuel tank is communicated with a liquid inlet of the methanol range extender, the power output end of the methanol range extender is electrically connected with the power input end of the power battery pack, and the power output end of the power battery pack is electrically connected with the power input end of the motor. Methanol is adopted as a power source, longer endurance can be provided, fuel filling is more convenient and faster and only needs to be carried out on the fuel wharf boat, harbor expenses do not need to be paid, the methanol and water are mutually soluble, pollution cannot be generated, and environmental protection is better achieved.

Description

Technical Field

[0001] This utility model relates to the field of shipbuilding, and in particular to an electric ship with an external methanol power generation standard power unit. Background Technology

[0002] Currently, inland waterway electric vessels use 20-foot standard containers as battery packs. When the electric vessel docks at an intermediate port, the depleted battery packs, previously installed in a specific location on the deck, are hoisted and removed, and fully charged backup batteries are installed in the same location to replace the battery packs and ensure the electric vessel's range. This setup has problems: battery-swapping vessels have limited battery capacity, resulting in insufficient range. For example, a 3000-ton electric vessel equipped with a 3400 kWh battery pack can only travel 220 kilometers. Battery swapping stations must be built at the dock, and sufficient backup batteries must be stocked, increasing system costs. Furthermore, the vessel must dock during battery swapping, increasing berthing time and impacting economic profitability. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an electric boat with an external methanol power generation standard power unit. It uses methanol as a power source, which can provide a longer range and makes refueling more convenient and faster. It can be done on a fuel barge without paying port fees. Methanol is miscible with water and will not produce pollution, making it more environmentally friendly.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an electric boat with an external methanol power generation standard power unit, including the boat body and the methanol power generation standard power unit.

[0005] The vessel body includes a propeller, a motor, and a power supply box;

[0006] The propeller shaft rotates relative to the ship body, the propeller is driven by the motor, and the power supply box is equipped with the methanol power generation standard power unit;

[0007] The standard power unit for methanol power generation includes a methanol fuel tank, a methanol range extender, and a power battery pack.

[0008] The methanol fuel outlet of the methanol fuel tank is connected to the methanol fuel inlet of the methanol range extender, the power output terminal of the methanol range extender is electrically connected to the power input terminal of the power battery pack, and the power output terminal of the power battery pack is electrically connected to the power input terminal of the motor.

[0009] This solution integrates a standard methanol-powered generator unit into the ship's hull power supply box for easy installation. It allows for methanol-fueled power generation to replace the ship's existing power source, providing extended range. Refueling is convenient and quick, taking place on a fuel barge without incurring port charges. Methanol is miscible with water, so even minor leaks will not affect inland waterway quality. Furthermore, if environmentally friendly methanol is used, the external methanol-powered generator unit can achieve zero carbon emissions.

[0010] Preferably, the methanol range extender includes a methanol fuel engine and a generator, with the output shaft of the methanol fuel engine linked to the input shaft of the generator. This enables efficient energy conversion.

[0011] Preferably, the exhaust pipe of the methanol range extender is equipped with a muffler to prevent excessive noise transmission.

[0012] Preferably, the silencer includes a primary silencer and a secondary silencer, thereby improving the noise reduction effect.

[0013] Preferably, a speed reducer is provided between the motor and the propeller. This facilitates control of the output speed and torque.

[0014] Preferably, the system includes a heat dissipation unit comprising a radiator, a cooling fan, and a circulating water pipe. The circulating water pipe is connected to the cooling water chamber of the methanol fuel engine, and both ends of the circulating water pipe are connected to the radiator. A circulating water pump is installed in the circulating water pipe, and the cooling fan is located on one side of the radiator. This system enables temperature regulation of the methanol fuel engine, facilitating heat dissipation.

[0015] Preferably, a multi-point cold start device is provided for the methanol range extender and its controller. This facilitates preheating of the methanol range extender so that it can be started even in low-temperature environments, thus solving the cold start problem of methanol engines.

[0016] Preferably, the methanol fuel tank is provided with a methanol fuel filling port.

[0017] The beneficial effects of this utility model are:

[0018] This solution uses methanol fuel power generation as a power source, which can provide a longer driving range. Liquid methanol fuel refueling is more convenient and quick, and can be carried out on the fuel barge without paying port fees. Methanol is miscible with water and will not cause pollution. Any minor leaks will not affect the water quality of inland rivers. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only five of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the exterior of a ship according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the interior of a ship according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of a standard power unit for single-range extended methanol power generation according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of a standard power unit for methanol power generation with dual range extension according to an embodiment of the present invention;

[0024] Figure 5 This is an electrical control schematic diagram of an embodiment of the present utility model;

[0025] The components include: 1. Methanol fuel engine radiator; 2. Generator and generator controller radiator; 3. Methanol fuel engine; 4. Air intake; 5. Methanol fuel tank; 6. Electric motor control unit; 7. Generator; 8. Exhaust pipe; 9. Electric water pump; 10. Low-voltage auxiliary power supply; 11. Generator controller; 12. Power battery pack; 13. Intelligent high-voltage converter; 14. Ship controller; 15. Ship propulsion motor controller; 16. Electric motor; 17. Primary silencer; 18. Secondary silencer; 19. Methanol power generation standard power unit; 20. Methanol fuel filling port; 21. Three-phase power supply; 22. External DC power supply; 23. Drive shaft; 24. Cooling fan; 25. Reducer; 26. Methanol range extender; 27. Propeller. Detailed Implementation

[0026] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0027] Example 1

[0028] like Figure 1 and Figure 2 As shown, an electric boat with an external methanol power generation standard power unit includes the boat body and a methanol power generation standard power unit 19.

[0029] The vessel body includes a propeller 27, an electric motor 16, and a power supply box;

[0030] The drive shaft 23 of the propeller 27 rotates relative to the ship body, the propeller 27 is driven by the electric motor 16, and the power supply box is equipped with the methanol power generation standard power unit 19;

[0031] The standard power unit 19 for methanol power generation includes a methanol fuel tank 5, a methanol range extender 26, and a power battery pack 12.

[0032] The methanol fuel outlet of the methanol fuel tank 5 is connected to the methanol fuel inlet of the methanol range extender 26. The power output terminal of the methanol range extender 26 is electrically connected to the power input terminal of the power battery pack 12. The power output terminal of the power battery pack 12 is electrically connected to the power input terminal of the motor 16.

[0033] This solution integrates the standard methanol power generation unit 19 into the ship's hull power supply box for easy installation. It allows for methanol-fueled power generation to power the ship without significant modifications, replacing the ship's original power source. The methanol-fueled power generation provides extended range, and refueling is convenient and quick, requiring only a fuel barge and eliminating port charges. Methanol is miscible with water, so any minor leaks will not affect inland waterway quality. If environmentally friendly methanol is used, the external methanol power generation unit 19 can achieve zero carbon emissions.

[0034] Combination Figure 3 and Figure 4 As shown, it can be configured as either a single-range extender or a dual-range extender depending on the layout.

[0035] The methanol range extender 26 includes a methanol fuel engine 3 and a generator 7, with the output end of the methanol fuel engine 3 and the input end of the generator 7 linked together. This enables efficient energy conversion.

[0036] The exhaust pipe 8 of the methanol range extender 26 is equipped with a muffler to prevent excessive noise from escaping.

[0037] The silencer includes a primary silencer and a secondary silencer, improving noise reduction.

[0038] A speed reducer 25 is provided between the electric motor 16 and the propeller 27 to facilitate control of the output speed and torque.

[0039] Based on the knowledge of those skilled in the art, it is known that the methanol range extender 26 is equipped with an ISG motor controller. The methanol fuel tank 5 is equipped with a methanol fuel filling port 20.

[0040] Example 2

[0041] Compared to Embodiment 1, this solution further includes a heat dissipation unit, which comprises a heat dissipation tank, a cooling fan 24, and a heat dissipation circulating water pipeline. The heat dissipation circulating water pipeline is connected to the cooling water chamber of the methanol fuel engine 3, and both ends of the heat dissipation circulating water pipeline are connected to the heat dissipation tank. The heat dissipation circulating water pipeline is equipped with a circulating water pump, and the cooling fan 24 is located on one side of the heat dissipation tank. This allows for the regulation of the temperature of the methanol fuel engine 3, facilitating heat dissipation.

[0042] A multi-point cold start device is provided for the methanol range extender 26 and its controller. This facilitates preheating of the methanol range extender 26 so that it can start even in low-temperature environments. The multi-point cold start device in this embodiment adopts a smart multi-point insulation system and a smart multi-point insulation system for a methanol range extender electric vehicle disclosed in patent document CN221942608U. This system includes a methanol fuel engine radiator 1, a generator and generator controller radiator 2, a methanol fuel engine 3, an air intake 4, a methanol fuel tank 5, a motor control unit 6 (control cabinet and inverter), a generator 7, an exhaust pipe 8, an electric water pump 9, a low-voltage auxiliary power supply 10, a generator controller 11, a power battery pack 12, a smart high-voltage converter 13, a ship controller 14, a ship propulsion motor controller 15, a ship propulsion motor 16, a primary muffler 17, and a secondary muffler 18. The motor control unit 6 and the motor 16 are connected via a wiring harness of a three-phase power supply 21.

[0043] This solution replaces the original containerized battery pack with an external methanol power generation standard unit 19. The methanol fuel tank 5 inside the external methanol power generation standard unit 19 can store more than 10 tons of methanol fuel, generating up to 20,000 kWh of electricity, enough to power a 3,000-ton electric vessel for nearly 1,300 kilometers. It eliminates the need for battery swapping or refueling at each dock, significantly reducing port call time. Furthermore, refueling with methanol can be done directly on the fuel barge, making docking simple, convenient, safe, and quick, without incurring port fees.

[0044] Methanol is miscible with water, so even minor leaks will not affect the water quality of inland rivers. If green methanol is used, the external methanol power generation standard unit 19 can achieve zero carbon emissions. However, if the power source for the containerized battery swapping pack comes from a coal-fired power plant, it will not be able to achieve zero carbon emissions.

[0045] The technical features of the above embodiments can be combined in any way. The external methanol power generation standard power unit can also be used in scenarios such as fixed or mobile power generation on land. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An outboard methanol powered standard power unit electric boat, characterized by, The ship body and a methanol power standard power unit (19) are included. The ship body includes a propeller (27), an electric motor (16) and a power supply box. The transmission shaft (23) of the propeller (27) is rotationally fitted to the ship body, the propeller (27) is driven by the electric motor (16), and the power supply box is provided with the methanol power standard power unit (19). The methanol power standard power unit (19) includes a methanol fuel tank (5), a methanol range extender (26) and a power battery pack (12). The methanol fuel outlet of the methanol fuel tank (5) is in communication with the methanol fuel inlet of the methanol range extender (26), the power output end of the methanol range extender (26) is electrically connected to the power input end of the power battery pack (12), and the power output end of the power battery pack (12) is electrically connected to the power input end of the electric motor (16).

2. An external methanol powered standard power unit electric boat according to claim 1, characterized in that: The methanol range extender (26) includes a methanol fuel engine (3) and a generator (7), and the output end of the rotating shaft of the methanol fuel engine (3) is connected to the input end of the rotating shaft of the generator (7).

3. A standard power unit electrically powered boat of claim 2, wherein: The exhaust pipe (8) of the methanol range extender (26) is provided with a silencer.

4. A standard power unit electrically powered boat of claim 3, wherein: The silencer includes a primary silencer and a secondary silencer.

5. A standard power unit electrically powered boat of claim 2, wherein: A speed reducer (25) is arranged between the electric motor (16) and the propeller (27).

6. A standard power unit electrically powered boat of claim 2, wherein: A heat dissipation unit is included, which includes a heat dissipation water tank, a heat dissipation fan (24) and a heat dissipation circulating water pipeline, the heat dissipation circulating water pipeline is communicated to the cooling water cavity of the methanol fuel engine (3), both ends of the heat dissipation circulating water pipeline are communicated to the heat dissipation water tank, the heat dissipation circulating water pipeline is provided with a circulating water pump, and one side of the heat dissipation water tank is provided with the heat dissipation fan (24).

7. A standard power unit electrically powered boat of claim 6, wherein: A multi-point cold start device is arranged corresponding to the methanol range extender (26) and its controller.

8. A standard power unit electrically powered boat of claim 6, wherein: The methanol fuel tank (5) is provided with a methanol fuel filling port (20).

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