Hydrogen energy power system of novel layout aircraft

Abstract

The invention discloses a hydrogen energy power system of a novel layout aircraft, which relates to the technical field of new energy and comprises a hydrogen fuel cell stack, a hydrogen storage and supply module, an air supply module and a power output and control module, high-pressure hydrogen in the high-pressure hydrogen storage tank is accurately controlled through the hydrogen flow control valve of the gas supply valve group and then conveyed into the hydrogen fuel cell stack, the high-efficiency air compressor can compress outside air and then convey the compressed outside air into the hydrogen fuel cell stack, and in the hydrogen fuel cell stack, hydrogen and oxygen are subjected to electrochemical reaction, so that the hydrogen fuel cell stack is formed. And electric energy and water are generated. Other gas and water in the air are directly discharged backwards, generated electric energy works through the driving power output and control module and electrical equipment in the airplane, and the driving power output and control module provides power for the airplane. By optimizing hydrogen storage and supply and using power output control of the hydrogen fuel cell stack, high efficiency, safety and environmental protection of an aircraft power system are achieved.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and in particular to a hydrogen energy power system for an aircraft with a new layout. Background Art

[0002] Hydrogen energy is a very important direction in the future new energy field, and it is also a key area for layout at home and abroad. The characteristic advantage is that hydrogen has a high energy density, which is three times that of aviation kerosene. It can provide more energy with the same mass, and the energy conversion efficiency of hydrogen fuel cells is higher than that of traditional internal combustion engines, which can theoretically reach 90%, and there is a lot of room for improvement. Hydrogen fuel cells provide traction through driving motors, making the aircraft more powerful while reducing mechanical parts and reducing maintenance costs. Hydrogen resources are abundant and can be produced through the electrolysis of water through renewable energy. The only emission after the chemical reaction of fuel cells is water, so hydrogen is an ideal sustainable aviation fuel.

[0003] In the aviation field, traditional aircraft usually use jet engines as their main power system. This engine generates huge thrust by burning fuel, allowing the aircraft to fly at high speed in the air. The high energy consumption and environmental pollution problems of this engine are becoming increasingly prominent. For this reason, we propose a new layout of hydrogen energy power system for aircraft. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that traditional aircraft usually use jet engines as their main power system and the high energy consumption and environmental pollution problems of traditional fuel engines are becoming increasingly prominent. The present invention provides a hydrogen energy power system for a new layout aircraft.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A hydrogen energy power system for a new layout aircraft, including

[0007] A hydrogen fuel cell stack includes a plurality of fuel cell units, which are connected to a hydrogen storage and supply module through pipelines and are capable of outputting electrical energy generated by a chemical reaction between hydrogen and oxygen in the air;

[0008] A hydrogen storage and supply module, comprising a high-pressure hydrogen storage tank and a gas supply valve group, wherein the gas supply valve group is connected to the high-pressure hydrogen storage tank and a plurality of fuel cell units;

[0009] Air supply module, including high-efficiency air compressor and air filter. The high-efficiency air compressor can compress the outside air and send it to the hydrogen fuel cell stack to ensure the full chemical reaction in the fuel cell. The air filter can effectively remove impurities and moisture in the air to prevent damage to the fuel cell and extend its service life.

[0010] The power output and control module includes a drive motor and a propulsion mechanism. The power input shaft of the propulsion mechanism is fixedly connected to the output shaft of the drive motor. The drive motor is electrically connected to the hydrogen fuel cell stack to convert and regulate the generated electrical energy.

[0011] Furthermore, the multiple fuel cell units in the hydrogen fuel cell stack all adopt proton exchange membrane technology to generate electricity through hydrogen, and the multiple fuel cell units supply power to the power output and control module through one or more methods of series connection and parallel connection.

[0012] Furthermore, the high-pressure hydrogen storage tank is made of high-strength composite material and has good high-pressure resistance to ensure the safe storage of hydrogen.

[0013] Furthermore, the gas supply valve group is equipped with a precise hydrogen flow control valve and a delivery pipeline, and a preheating mechanism is provided on the outer wall of the hydrogen fuel cell stack. The delivery pipeline of the gas supply valve group is connected to the fuel cell unit after passing through the preheating mechanism.

[0014] Furthermore, the control driver of the drive motor can adjust the power output of the hydrogen fuel cell stack in real time according to the flight attitude, speed and altitude parameters of the aircraft.

[0015] Furthermore, the hydrogen energy power system also includes an energy storage unit, and the energy storage unit includes a plurality of battery blocks connected in series.

[0016] Furthermore, the hydrogen fuel cell stack, hydrogen storage and supply module, air supply module, power output and control module and energy storage unit are arranged in two groups on both wings of the aircraft, and the hydrogen fuel cell stacks of the two groups of hydrogen energy power systems are electrically connected to the aircraft electrical equipment through control switches.

[0017] Furthermore, the hydrogen energy power system also includes a hydrogen refueling port, which is arranged on the wing near the left side of the nose, and the hydrogen refueling ports on both sides are respectively connected to the hydrogen storage and supply modules on both sides.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. In the present invention, the high-pressure hydrogen in the high-pressure hydrogen storage tank is precisely controlled by the hydrogen flow control valve of the air supply valve group, and then transported to the hydrogen fuel cell stack. The high-efficiency air compressor can compress the external air and send it into the hydrogen fuel cell stack. In the hydrogen fuel cell stack, hydrogen and oxygen undergo an electrochemical reaction to generate electrical energy and water. The remaining gas and water in the air are directly discharged to the rear, and the generated electrical energy drives the power output and control module and the electrical equipment in the aircraft to drive the power output and control module to provide power for the aircraft. By optimizing the use of hydrogen storage and supply and power output control of the hydrogen fuel cell stack, the efficiency, safety and environmental protection of the aircraft power system are achieved. The design concept and workflow of the system provide new ideas and solutions for the innovation of future aviation power systems.

[0020] 2. The battery blocks in the energy storage unit of the present invention provide additional power when the aircraft is started and has low power demand, or as a supplement when the output power of the hydrogen fuel cell stack is insufficient. In addition, the energy storage unit can also recover part of the energy when the aircraft descends to improve the efficiency of energy use.

[0021] 3. The two hydrogen energy power systems set on the two wings of the aircraft in the present invention can realize flexible power distribution and redundant backup by controlling the switch electrical connection, ensuring that the aircraft can maintain stable power output under any circumstances. This design not only improves the power performance of the aircraft, but also enhances the safety and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a system structure block diagram of the present invention.

[0023] Figure numerals: 1. Hydrogen fuel cell stack; 11. Fuel cell unit; 12. Preheating mechanism; 2. Hydrogen storage and supply module; 21. High-pressure hydrogen storage; 22. Air supply valve group; 3. Air supply module; 31. High-efficiency air compressor; 32. Air filter; 4. Power output and control module; 41. Drive motor; 42. Propulsion mechanism; 5. Energy storage unit; 6. Hydrogen refueling port. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] See also Figure 1 The present invention provides a hydrogen energy power system for a new layout aircraft, comprising:

[0026] A hydrogen fuel cell stack 1 includes a plurality of fuel cell units 11, which are connected to a hydrogen storage and supply module 2 via pipelines, and are capable of outputting electrical energy generated by a chemical reaction between hydrogen and oxygen in the air;

[0027] A hydrogen storage and supply module 2, comprising a high-pressure hydrogen storage tank 21 and a gas supply valve group 22, wherein the gas supply valve group 22 is connected to the high-pressure hydrogen storage tank 21 and a plurality of fuel cell units 11;

[0028] The air supply module 3 includes a high-efficiency air compressor 31 and an air filter 32. The air filter 32 is arranged on the front side of the wing, and its rear side is directly connected to the hydrogen fuel cell stack 1 through an air duct. The high-efficiency air compressor 31 is directly integrated on the air duct, which saves space and reduces air pressure loss. It can compress the outside air and send it to the hydrogen fuel cell stack 1 to ensure that the chemical reaction in the fuel cell is fully carried out. The air filter 32 can effectively remove impurities and moisture in the air to prevent damage to the fuel cell and extend its service life;

[0029] The power output and control module 4 includes a drive motor 41 and a propulsion mechanism 42. The power input shaft of the propulsion mechanism 42 is fixedly connected to the output shaft of the drive motor 41. The drive motor 41 is electrically connected to the hydrogen fuel cell stack 1 to convert and regulate the generated electrical energy.

[0030] In this embodiment, preferably, the multiple fuel cell units 11 in the hydrogen fuel cell stack 1 all adopt proton exchange membrane technology to generate electricity through hydrogen, and the multiple fuel cell units 11 supply power to the power output and control module 4 through one or more methods of series connection and parallel connection.

[0031] In this embodiment, preferably, the high-pressure hydrogen storage tank 21 is made of a high-strength composite material and has good high-pressure resistance to ensure the safe storage of hydrogen. A plurality of high-pressure hydrogen storage tanks 21 are connected in series to supply gas to the hydrogen fuel cell stack 1.

[0032] In this embodiment, preferably, the gas supply valve group 22 is equipped with a precise hydrogen flow control valve and a delivery pipeline, and a preheating mechanism 12 is provided on the outer wall of the hydrogen fuel cell stack 1. The delivery pipeline of the gas supply valve group 22 is connected to the fuel cell unit 11 after passing through the preheating mechanism 12. The preheating mechanism 12 can use a spiral coil and a heat exchange sleeve structure. The heat exchange sleeve is fixed to the outer wall of the hydrogen fuel cell stack 1, and a spiral coil is buried inside. The transported hydrogen is heated by heat exchange with the heat exchange sleeve through the spiral coil. The hydrogen is preheated during the transportation process to increase the reaction activity of the hydrogen and further improve the power generation efficiency of the fuel cell. The preheating mechanism uses the waste heat of the aircraft fuel cell to preheat the hydrogen to ensure that the hydrogen reaches the optimal reaction temperature before entering the fuel cell stack, and is also equipped with an electric heating structure to ensure the normal operation of the gas supply valve group 22 during aircraft startup and in ultra-low temperature environments.

[0033] In this embodiment, preferably, the control driver of the drive motor 41 can adjust the power output of the hydrogen fuel cell stack 1 in real time according to the flight attitude, speed and altitude parameters of the aircraft. The control driver of the drive motor 41 is optimized through intelligent algorithms to ensure efficient operation of the power system in different flight phases, thereby extending the service life of the hydrogen fuel cell stack 1 and improving the overall energy efficiency.

[0034] In this embodiment, preferably, the hydrogen energy power system further includes an energy storage unit 5, which includes a plurality of battery blocks connected in series; the battery blocks in the energy storage unit 5 provide additional electrical energy when the aircraft is started and has low power demand, or serve as a supplement when the output power of the hydrogen fuel cell stack 1 is insufficient. In addition, the energy storage unit 5 can also recover part of the energy when the aircraft descends to improve the efficiency of energy use.

[0035] In this embodiment, preferably, two groups of hydrogen fuel cell stacks 1, hydrogen storage and supply module 2, air supply module 3, power output and control module 4 and energy storage unit 5 are respectively arranged on the two wings of the aircraft, and the hydrogen fuel cell stacks 1 of the two hydrogen energy power systems are electrically connected to the aircraft electrical equipment through the control switch; the two groups of hydrogen energy power systems arranged on the two wings of the aircraft are electrically connected through the control switch, which can realize flexible power distribution and redundant backup, ensuring that the aircraft can maintain stable power output under any circumstances. This design not only improves the power performance of the aircraft, but also enhances the safety and reliability of the system.

[0036] In this embodiment, preferably, the hydrogen energy power system also includes a hydrogen refueling port 6, which is arranged on the wing near the left side of the nose, and the hydrogen refueling ports 6 on both sides are respectively connected to the hydrogen storage and supply modules 2 on both sides; the hydrogen storage and supply modules 2 can be inflated through the hydrogen refueling port 6.

[0037] The working principle and use process of the present invention: When the device is used, first, the high-pressure hydrogen in the high-pressure hydrogen storage tank 21 is precisely controlled by the hydrogen flow control valve of the air supply valve group 22, and then transported to the hydrogen fuel cell stack 1. The high-efficiency air compressor 31 can compress the outside air and send it into the hydrogen fuel cell stack 1. In the hydrogen fuel cell stack 1, hydrogen and oxygen undergo electrochemical reactions to generate electricity and water. The remaining gas and water in the air are directly discharged backwards, and the generated electricity drives the power output and control module 4 and the electrical equipment in the aircraft to drive the power output and control module 4 to provide power for the aircraft. By optimizing the use of the power output control of the hydrogen storage and supply module 2 and the hydrogen fuel cell stack 1, the efficiency, safety and environmental protection of the aircraft power system are achieved. The design concept and workflow of the system provide new ideas and solutions for the innovation of future aviation power systems. With the continuous advancement of technology and increasingly stringent environmental protection requirements, the application prospects of hydrogen energy power systems in the aviation field are broad, and it is expected to become an important force to promote the sustainable development of the aviation industry.

[0038] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hydrogen energy power system for a new type of aircraft layout, characterized by: include A hydrogen fuel cell stack (1) comprises a plurality of fuel cell units (11), wherein the plurality of fuel cell units (11) are connected to a hydrogen storage and supply module (2) via pipelines and are capable of outputting electrical energy generated by a chemical reaction between hydrogen and oxygen in the air; A hydrogen storage and supply module (2), comprising a high-pressure hydrogen storage tank (21) and a gas supply valve assembly (22), wherein the gas supply valve assembly (22) is connected to the high-pressure hydrogen storage tank (21) and a plurality of fuel cell units (11); The air supply module (3) comprises a high-efficiency air compressor (31) and an air filter (32). The high-efficiency air compressor (31) can compress the outside air and send it into the hydrogen fuel cell stack (1), and the air filter (32) can effectively remove impurities and moisture in the air. The power output and control module (4) comprises a drive motor (41) and a propulsion mechanism (42), wherein the power input shaft of the propulsion mechanism (42) is fixedly connected to the output shaft of the drive motor (41), and the drive motor (41) is electrically connected to the hydrogen fuel cell stack (1) to convert and regulate the generated electrical energy.

2. The hydrogen energy power system for a novel layout aircraft according to claim 1 is characterized by: The multiple fuel cell units (11) in the hydrogen fuel cell stack (1) all adopt proton exchange membrane technology to generate electricity through hydrogen, and the multiple fuel cell units (11) supply power to the power output and control module (4) through one or more modes of series connection and parallel connection.

3. The hydrogen energy power system for a novel layout aircraft according to claim 1 is characterized by: The high-pressure hydrogen storage tank (21) is made of high-strength composite material and has good high-pressure resistance to ensure safe storage of hydrogen.

4. The hydrogen energy power system for a novel layout aircraft according to claim 1 is characterized by: The gas supply valve group (22) is equipped with a precise hydrogen flow control valve and a delivery pipeline, and the outer wall of the hydrogen fuel cell stack (1) is provided with a preheating mechanism (12), and the delivery pipeline of the gas supply valve group (22) is connected to the fuel cell unit (11) after passing through the preheating mechanism (12).

5. The hydrogen energy power system for a novel layout aircraft according to claim 1 is characterized by: The control driver of the drive motor (41) can adjust the power output of the hydrogen fuel cell stack (1) in real time according to the flight attitude, speed and altitude parameters of the aircraft.

6. The hydrogen energy power system for a novel layout aircraft according to claim 1 is characterized by: The hydrogen energy power system further comprises an energy storage unit (5), wherein the energy storage unit (5) comprises a plurality of battery blocks connected in series.

7. The hydrogen energy power system for a novel layout aircraft according to claim 6 is characterized by: The hydrogen fuel cell stack (1), hydrogen storage and supply module (2), air supply module (3), power output and control module (4) and energy storage unit (5) are respectively arranged in two groups on both wings of the aircraft, and the hydrogen fuel cell stacks (1) of the two groups of hydrogen energy power systems are electrically connected to the electrical equipment of the aircraft through a control switch.

8. The hydrogen energy power system for a novel layout aircraft according to claim 7 is characterized by: The hydrogen energy power system further comprises a hydrogen filling port (6), which is arranged on the wing near the left side of the nose, and the hydrogen filling ports (6) on both sides are respectively connected to the hydrogen storage and supply modules (2) on both sides.

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