Self-energy-complementing type hydrogen energy hybrid hydrofoil catamaran and using method thereof

Abstract

The invention provides a self-energy-complementing hydrogen energy hybrid hydrofoil catamaran, relates to the technical field of unmanned ship power, and solves the defects of endurance, concealment, task diversity and the like of existing equipment in an open sea environment. The ship comprises a ship body and a submerged body. A wind driven generator is installed at the top of the hull body, a propeller is fixedly installed at the rear end of the bottom face of the hull body, a water electrolysis hydrogen production device, a fuel cell and a hydrogen storage tank are arranged in the hull body, a storage battery and a hydrogen tank are arranged in the submerged body, and the fuel cell and the storage battery can both drive the propeller and the water spraying propeller. According to the catamaran, high-pressure gas hydrogen serves as fuel, a fuel cell-lithium battery hybrid power system serves as a power device, a foldable small wind driven generator drives electrolysis seawater to produce hydrogen to serve as a self-energy-supplementing device, a hydrofoil catamaran composite ship serves as a ship body, a separated submerged body of the catamaran can serve as a suicide attack means, and the catamaran is an unmanned surface ship suitable for open-sea combat.

Description

Technical Field

[0001] This invention belongs to the field of unmanned vessel propulsion technology, and in particular relates to a self-replenishing hydrogen-powered hybrid hydrofoil catamaran and its usage method. Background Technology

[0002] With the increasing strategic importance of the ocean, unmanned surface vessels (USVs) have become a key research focus for various countries due to their advantages in military missions such as reconnaissance, surveillance, and attack, including high flexibility, low cost, and the ability to avoid human casualties. Traditional USVs mostly use diesel engine power systems, which have problems such as high noise, obvious thermal signatures, and serious emissions pollution. Especially in the environment of open-sea operations, their endurance is significantly limited by refueling, making it difficult to meet the needs of long-term, large-scale autonomous operations.

[0003] To reduce carbon emissions and improve energy sustainability, clean power technologies, represented by hydrogen fuel cells, are gradually being applied. Hydrogen fuel cells use hydrogen as fuel, with water as the only reaction product, enabling zero-carbon emission operation. They also offer advantages such as high energy conversion efficiency and low noise, making them suitable for military vessels with high stealth requirements. However, existing hydrogen-powered unmanned surface vessels (USVs) still face a series of technical bottlenecks: First, gaseous hydrogen has low storage density, while liquid hydrogen requires cryogenic insulation, limiting the vessel's payload and range; second, hydrogen refueling relies on shore-based facilities, making continuous energy supply difficult in remote maritime operations lacking logistical support.

[0004] Furthermore, existing unmanned surface vessels (USVs) are mostly monohull or conventional catamaran structures, which have limited speed and seakeeping capabilities, making them ill-suited for complex sea conditions. While some research has attempted to incorporate hydrofoil technology to improve navigation efficiency, these studies typically lack overall optimization with the propulsion system and fail to consider the tactical requirements for both attack and self-destruct capabilities in military applications. Regarding energy autonomy, although some proposals suggest using solar or wind power for auxiliary power generation, there are no reports of technologies effectively utilizing offshore wind power to electrolyze seawater to produce hydrogen and deeply integrating it with fuel cell-lithium battery hybrid power systems.

[0005] Therefore, there is an urgent need for a new type of unmanned surface vessel that combines green power, energy self-sufficiency, high mobility, and combat capabilities to address the shortcomings of existing equipment in terms of endurance, stealth, and mission versatility in the open sea environment. Summary of the Invention

[0006] In view of this, in order to address the shortcomings of existing equipment in terms of endurance, stealth, and mission versatility in open sea environments, this invention proposes a self-replenishing hydrogen-powered hybrid hydrofoil catamaran and its usage method. It uses high-pressure gaseous hydrogen as fuel to reduce carbon emissions, a fuel cell-lithium battery hybrid system as the power unit, and a self-replenishing device consisting of a small, conceivable wind turbine that drives the electrolysis of seawater to produce hydrogen. The hull is a hydrofoil catamaran, and its detachable submersible body can be used as a suicide attack method, making it suitable for unmanned surface vessels in open sea operations.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a self-replenishing hydrogen-powered hybrid hydrofoil catamaran, comprising a hull and two submerged hulls. The hull includes a wind turbine, a water electrolysis hydrogen production device, a fuel cell, a hydrogen storage tank, and a propeller. A wind turbine is installed on the top of the hull, and a propeller is fixedly installed at the rear end of the bottom surface of the hull. The interior of the hull contains the water electrolysis hydrogen production device, the fuel cell, and the hydrogen storage tank. The wind turbine is connected to the water electrolysis hydrogen production device, which is sequentially connected to the hydrogen storage tank and the fuel cell. The water electrolysis hydrogen production device uses seawater to produce hydrogen, and the produced hydrogen is stored in the hydrogen storage tank, which supplies hydrogen to the fuel cell. The submersible includes a waterjet propulsion system, a battery, a hydrogen tank, and hydrofoils. Hydrofoils are fixedly installed on the top of the submersible body, and the bottom of the hull is connected to the submersible body via hydrofoils. A waterjet propulsion system is fixedly installed at the rear end of the submersible body. The submersible body contains a battery and a hydrogen tank. Both the fuel cell and the battery can drive the propeller and the waterjet propulsion system.

[0008] Furthermore, the propeller is provided with two... Furthermore, the wind turbine is retractable; when the unmanned vessel is docked and waiting, the wind turbine is deployed, and when cruising, the wind turbine is retracted to reduce navigation resistance.

[0009] Furthermore, the wind turbine drives the water electrolysis hydrogen production device to replenish hydrogen.

[0010] Furthermore, the water electrolysis hydrogen production device uses a proton exchange membrane electrolyzer.

[0011] Furthermore, the electrolytic water hydrogen production device is equipped with a water purification system, which directly utilizes seawater to produce hydrogen.

[0012] Furthermore, the fuel cell is a proton exchange membrane fuel cell.

[0013] Furthermore, the submerged body is separable.

[0014] Furthermore, the hydrofoil adopts a deep-immersion structure, with the hydrofoil being completely submerged to a sufficient depth below the water surface via vertical support pillars to avoid interference from surface waves.

[0015] A method for using a self-replenishing hydrogen-powered hybrid hydrofoil catamaran. When the unmanned vessel is docked and waiting, it deploys a wind turbine to power a seawater electrolysis hydrogen production device to replenish hydrogen into the hydrogen storage tank for use in fuel cells. During normal cruise, the fuel cell is responsible for the long-term low-power output during the cruise phase, driving the propeller to provide power; During the high-speed wing phase, the battery drives the propeller, and the fuel cell and the battery are connected in parallel to drive the water jet propulsion. The hydrofoil lifts the hull and reduces the sailing resistance. During the combat phase, the submarine is separated from the ship's hull. The submarine is equipped with hydrogen tanks containing highly explosive gases. A battery-powered waterjet propulsion system provides power to the separated submarine to complete the mission of attacking surface ships.

[0016] Compared with existing technologies, the beneficial effects of the self-replenishing hydrogen-powered hybrid hydrofoil catamaran of the present invention are: (1) The self-replenishing hydrogen-powered hybrid hydrofoil catamaran of the present invention uses a fuel cell-lithium battery hybrid system as the power unit to replace the traditional hydrocarbon fuel engine, which significantly reduces the emissions of carbon dioxide and other carbon-based greenhouse gases generated during engine operation.

[0017] (2) The self-replenishing hydrogen-powered hydrofoil catamaran of the present invention is mainly driven by the battery in the high-speed wing-wing state of the unmanned ship. The fuel cell and the battery are connected in parallel to drive the water jet device. The hydrofoil lifts the hull and reduces the sailing resistance, thereby alleviating the deficiency of the low energy density of the battery and improving the range of the unmanned ship at high speed.

[0018] (3) The self-replenishing hydrogen-powered hybrid hydrofoil catamaran of the present invention can also separate the submersible from the hull and perform the mission of attacking surface ships as a suicide UUV, thereby realizing the cross-domain combat capability of hydrogen fuel cell hybrid hydrofoil catamaran composite unmanned ship.

[0019] (4) The self-replenishing hydrogen-powered hybrid hydrofoil catamaran of the present invention carries a deployable small wind turbine. When moored and waiting, it can deploy a small wind power generation device to make full use of the abundant wind energy in the sea area and improve energy utilization.

[0020] (5) The self-replenishing hydrogen-powered hybrid hydrofoil catamaran of the present invention carries a water electrolysis hydrogen production device, which directly uses seawater to produce hydrogen, effectively solving the problem of hydrogen production and storage. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the self-replenishing hydrogen-powered hybrid hydrofoil catamaran of the present invention; Figure 2 This is a left view of the self-replenishing hydrogen-powered hybrid hydrofoil catamaran of the present invention. Explanation of reference numerals in the attached figures: 1. Retractable wind turbine; 2. Seawater electrolysis hydrogen production device; 3. Fuel cell; 4. Hydrogen storage tank; 5. Propeller; 6. Water jet propulsion device; 7. Battery; 8. Hydrogen tank; 9. Hydrofoil. Detailed Implementation The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0022] See Figure 1-2 This embodiment describes a self-replenishing hydrogen-powered hybrid hydrofoil catamaran, comprising a hull and two submersibles symmetrically mounted below the hull. The hull includes a wind turbine 1, a water electrolysis hydrogen production device 2, a fuel cell 3, a hydrogen storage tank 4, and a propeller 5. The wind turbine 1 is mounted on the top of the hull, and the propeller 5 is fixedly mounted on the rear end of the bottom surface of the hull. The water electrolysis hydrogen production device 2, the fuel cell 3, and the hydrogen storage tank 4 are arranged inside the hull. The wind turbine 1 is connected to the water electrolysis hydrogen production device 2, which is sequentially connected to the hydrogen storage tank 4 and the fuel cell 3. The water electrolysis hydrogen production device 2 uses seawater to produce hydrogen, which is stored in the hydrogen storage tank 4. The hydrogen storage tank 4 supplies hydrogen to the fuel cell 3. The submersible includes a water jet propulsion unit 6, a battery 7, a hydrogen tank 8, and a hydrofoil 9. The hydrofoil 9 is fixedly installed on the top of the submersible body, and the water jet propulsion unit 6 is fixedly installed at the rear end of the submersible body. The battery 7 and the hydrogen tank 8 are installed inside the submersible body. Both the fuel cell 3 and the battery 7 can drive the propeller 5 and the water jet propulsion unit 6.

[0023] The wind turbine 1 is retractable. When the unmanned vessel is docked and waiting, the wind turbine 1 is deployed. When cruising, the wind turbine 1 is retracted to reduce navigation resistance.

[0024] The wind turbine 1 drives the water electrolysis hydrogen production device 2 to replenish hydrogen.

[0025] The water electrolysis hydrogen production device 2 uses a proton exchange membrane electrolyzer.

[0026] The electrolytic water hydrogen production device 2 is equipped with a water purification system and directly uses seawater to produce hydrogen.

[0027] The fuel cell 3 is a proton exchange membrane fuel cell.

[0028] The submerged body is separable.

[0029] The hydrofoil 9 adopts a deep-immersion structure, and the hydrofoil 9 is completely submerged to a sufficient depth below the water surface through vertical support to avoid interference from water surface waves.

[0030] The fuel cell 3 uses seawater to carry away the heat generated by the fuel cell.

[0031] The batteries 7, which are relatively heavy and housed in the two submerged bodies of the composite vessel, are designed to improve the stability of the unmanned vessel.

[0032] Hydrogen cylinder 8 is used to store high-pressure, explosive gases, which may explode upon impact.

[0033] The method of using the self-replenishing hydrogen-powered hybrid hydrofoil catamaran of the present invention is as follows: When the unmanned vessel is docked and waiting, the wind turbine 1 is deployed to drive the seawater electrolysis hydrogen production device 2 to replenish hydrogen into the hydrogen storage tank 4 for use by the fuel cell 3. During normal cruise, fuel cell 3 is responsible for the long-term low-power output during the cruise phase, driving propeller 5 to provide power; During the high-speed wing phase, the propulsion power is mainly provided by the storage battery 7, which drives the propeller 5. The fuel cell 3 and the storage battery 7 are connected in parallel to drive the water jet propulsion unit 6. The hydrofoil 9 is used to lift the hull and reduce the sailing resistance. During the combat phase, the submarine is separated from the ship's hull. The submarine is equipped with a hydrogen tank 8 containing explosive gas. The water jet propulsion unit 6 driven by the battery 7 provides power to the separated submarine to complete the mission of attacking surface ships.

[0034] The embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A self-replenishing hydrogen-powered hybrid hydrofoil catamaran, characterized in that: The vessel includes a hull and two submersibles. Two submersibles are symmetrically installed below the hull. The hull includes a wind turbine (1), a water electrolysis hydrogen production device (2), a fuel cell (3), a hydrogen storage tank (4), and a propeller (5). The wind turbine (1) is installed on the top of the hull body, and the propeller (5) is fixedly installed at the rear end of the bottom surface of the hull body. The water electrolysis hydrogen production device (2), the fuel cell (3), and the hydrogen storage tank (4) are arranged inside the hull body. The wind turbine (1) is connected to the water electrolysis hydrogen production device (2). The water electrolysis hydrogen production device (2) is connected to the hydrogen storage tank (4) and the fuel cell (3) in sequence. The water electrolysis hydrogen production device (2) uses seawater to produce hydrogen. The produced hydrogen is stored in the hydrogen storage tank (4). The hydrogen storage tank (4) supplies hydrogen to the fuel cell (3). The submersible includes a water jet propulsion unit (6), a battery (7), a hydrogen tank (8), and a hydrofoil (9). The hydrofoil (9) is fixedly installed on the top of the submersible body, and the bottom of the hull is connected to the submersible body through the hydrofoil (9). The water jet propulsion unit (6) is fixedly installed at the rear end of the submersible body. The battery (7) and the hydrogen tank (8) are installed inside the submersible body. Both the fuel cell (3) and the battery (7) can drive the propeller (5) and the water jet propulsion unit (6).

2. The self-replenishing hydrogen-powered hybrid hydrofoil catamaran according to claim 1, characterized in that: The propeller (5) is provided in two parts.

3. The self-replenishing hydrogen-powered hybrid hydrofoil catamaran according to claim 1, characterized in that: The wind turbine (1) is retractable. When the unmanned vessel is docked and waiting, the wind turbine (1) is deployed. When cruising, the wind turbine (1) is retracted to reduce navigation resistance.

4. The self-replenishing hydrogen-powered hybrid hydrofoil catamaran according to claim 1, characterized in that: The wind turbine (1) drives the water electrolysis hydrogen production device (2) to replenish hydrogen.

5. The self-replenishing hydrogen-powered hybrid hydrofoil catamaran according to claim 1, characterized in that: The water electrolysis hydrogen production device (2) adopts a proton exchange membrane electrolyzer.

6. The self-replenishing hydrogen-powered hybrid hydrofoil catamaran according to claim 1, characterized in that: The electrolytic water hydrogen production device (2) is equipped with a water purification device and directly uses seawater to produce hydrogen.

7. The self-replenishing hydrogen-powered hybrid hydrofoil catamaran according to claim 1, characterized in that: The fuel cell (3) is a proton exchange membrane fuel cell.

8. The self-replenishing hydrogen-powered hybrid hydrofoil catamaran according to claim 1, characterized in that: The submerged body is separable.

9. The self-replenishing hydrogen-powered hybrid hydrofoil catamaran according to claim 1, characterized in that: The hydrofoil (9) adopts a deep-immersion structure, and the hydrofoil (9) is completely submerged to a sufficient depth below the water surface through vertical support to avoid interference from water surface waves.

10. A method of using a self-replenishing hydrogen-powered hybrid hydrofoil catamaran as described in any one of claims 1-9, characterized in that: When the unmanned boat is docked and waiting, the wind turbine (1) is deployed to drive the seawater electrolysis hydrogen production device (2) to replenish hydrogen into the hydrogen storage tank (4) for use by the fuel cell (3); During normal cruise, the fuel cell (3) is responsible for the long-term low power output during the cruise phase, driving the propeller (5) to provide power; During the high-speed wing-wing phase, the battery (7) drives the propeller 5, and the fuel cell (3) and the battery (7) are connected in parallel to drive the water jet propulsion (6), which uses the hydrofoil (9) to lift the hull and reduce the sailing resistance; During the combat phase, the submarine is separated from the ship's hull. The submarine is equipped with a hydrogen tank (8), which contains explosive gas. The battery (7) drives the water jet propulsion unit (6) to provide power to the separated submarine in order to complete the mission of attacking surface ships.

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