Hydrogen power system for producing hydrogen through water electrolysis

Abstract

The invention relates to the technical field of new energy automobile manufacturing, and discloses a water electrolysis hydrogen production hydrogen power system which comprises a water treatment module, a purified water pretreatment module, an electrolytic reaction module, a hydrogen storage module, an oxygen management module, a power module, a power module and a control system. The water treatment module is used for filtering the added fresh water to obtain purified water; the purified water pretreatment module is used for heating purified water into water vapor through heat of an exhaust pipe of an engine, and the water vapor is used for an electrolysis reaction; the electrolytic reaction module is used for decomposing the water vapor into hydrogen and oxygen through electrolytic reaction; and the hydrogen storage module is used for storing pure hydrogen generated by electrolysis. Water is used as a raw material, hydrogen is generated through electrolysis, emission after hydrogen combustion is pure water, emission of greenhouse gases such as carbon dioxide and carbon monoxide is effectively reduced, pollution to the environment is reduced, renewable energy is used for supplying power to the system, and the energy cost is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle manufacturing, and in particular to a hydrogen power system for producing hydrogen by water electrolysis. Background Art

[0002] In response to global climate change and the growing demand for energy, the need to find clean and renewable energy is becoming increasingly urgent. Hydrogen energy, as an efficient and zero-emission energy carrier, is receiving more and more attention. Hydrogen power systems use hydrogen as fuel and convert it into electrical energy and thermal energy through chemical reactions to achieve efficient energy conversion. Among them, water electrolysis hydrogen production technology has become one of the important technologies in the field of hydrogen production due to its green and renewable characteristics.

[0003] At present, the fuel vehicles commonly used in the market will produce a large amount of exhaust emissions during driving, including harmful substances such as carbon dioxide and carbon monoxide. These gases have a serious impact on the environment and air quality, further exacerbating the greenhouse effect and air pollution. In order to cope with this problem, governments and enterprises in various countries have actively promoted the development of new energy vehicles, and electric vehicles have come into being.

[0004] However, although pure electric vehicles reduce tail gas emissions, they also have many problems and shortcomings:

[0005] Short driving range: Existing electric vehicles generally have the problem of short driving range. Users need to charge frequently during long-distance driving, which results in a poor user experience.

[0006] Slow charging speed: Electric vehicles charge slowly. Even with fast charging technology, it takes tens of minutes to several hours, which cannot meet the needs of users for fast travel.

[0007] Insufficient charging facilities: The construction speed of infrastructure such as charging piles is far behind the popularization speed of electric vehicles, resulting in users often facing difficulties in charging during use.

[0008] To this end, those skilled in the art provide a water electrolysis hydrogen production hydrogen power system to solve the problems raised in the above background technology. Summary of the invention

[0009] In view of the deficiencies in the prior art, the present invention provides a hydrogen power system for producing hydrogen by water electrolysis, which solves the problems of emission pollution, short pure electric driving range, slow charging speed and difficulty in charging in the prior art.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hydrogen power system for producing hydrogen by water electrolysis, including a water treatment module, a pure water pretreatment module, an electrolysis reaction module, a hydrogen storage module, an oxygen management module, a power module, a power module, and a control system;

[0011] The water treatment module is used to filter the added fresh water to obtain pure water;

[0012] The pure water pretreatment module is used to heat the pure water into water vapor through the heat of the engine exhaust pipe for use in electrolysis reaction;

[0013] The electrolysis reaction module is used to decompose water vapor into hydrogen and oxygen through an electrolysis reaction;

[0014] The hydrogen storage module is used to store the pure hydrogen generated by electrolysis and further dry the hydrogen for use by the vehicle power system;

[0015] The oxygen management module is used to manage and process the oxygen generated by the electrolysis reaction;

[0016] The power module is used to provide electrical energy for the electrolysis reaction and the engine;

[0017] The power module is used to drive the engine using hydrogen as fuel;

[0018] The control system is used to control the hydrogen injection amount and ignition time;

[0019] The water treatment module is connected to the pure water pretreatment module through a pipeline, the electrolysis reaction module is connected to the pure water pretreatment module through a pipeline, the electrolysis reaction module is connected to the hydrogen storage module through a pipeline, the hydrogen storage module is connected to the oxygen management module through a pipeline, the hydrogen storage module is connected to the power module through a pipeline, the power module is electrically connected to the control system, and the power module is electrically connected to the power module, the control system, the electrolysis reaction module, the hydrogen storage module, and the oxygen management module.

[0020] Preferably, the water treatment module comprises a water tank and a filter, wherein the water tank is used to store one or more of river water and rain water, and the filter is used to filter fresh water to obtain pure water.

[0021] Preferably, the pure water pretreatment module comprises an engine exhaust pipe, and the engine exhaust pipe is used to heat the pure water into water vapor through the heat of the exhaust pipe.

[0022] Preferably, the electrolysis reaction module includes an electrolysis reactor, a H2 separator, a H2 cooler, a H2 dehumidifier, an O2 separator, an O2 cooler, and an O2 dehumidifier;

[0023] The electrolytic reactor is used to: electrolyze water vapor into hydrogen and oxygen;

[0024] The H2 separator is used to separate hydrogen;

[0025] The H2 cooler is used to cool the separated hydrogen;

[0026] The H2 dehumidifier is used to remove moisture from hydrogen;

[0027] The O2 separator is used to separate oxygen;

[0028] The O2 cooler is used to cool the separated oxygen;

[0029] The O2 dehumidifier is used to remove moisture from oxygen.

[0030] Preferably, the hydrogen storage module includes a hydrogen purity meter, a pure hydrogen storage tank, and a hydrogen drying device;

[0031] The hydrogen purity meter is used to monitor the amount of hydrogen;

[0032] The pure hydrogen storage tank is used to store pure hydrogen;

[0033] The hydrogen drying device is used to further dry the hydrogen.

[0034] Preferably, the oxygen management module comprises an oxygen management unit;

[0035] The oxygen management unit is used to control the use and discharge of oxygen.

[0036] Preferably, the power module includes a lithium battery, a solar panel, a wind power generation device, and a charging port;

[0037] The lithium battery is used to provide electrical energy for the electrolysis reaction device;

[0038] The solar panel is used for charging via solar energy;

[0039] The wind power generation is used for charging through a wind power generation device;

[0040] The charging port is used as an external power charging interface.

[0041] Preferably, the power module includes an intake system, an ignition system, an exhaust system, a cooling system, a lubrication system, a starter motor, a generator, an engine body, and a pressurized air system;

[0042] The intake system includes a twin turbocharger and an air-to-air intercooler; the ignition system includes an ignition coil, a spark plug and an ignition control module; the exhaust system is used to discharge high-temperature exhaust gas and preheat pure water; the cooling system is used to reduce the intake temperature and increase the intake density; the lubrication system is used to lubricate the moving parts of the engine; the starter motor is used to initially start the engine; the generator is used to provide power to the electrolysis device and the lithium battery after the vehicle is started; the pressurized air system is used to provide pressurized air to the engine.

[0043] Preferably, the control system includes an ECU and an energy control algorithm unit;

[0044] The energy control algorithm unit uses a particle swarm optimization algorithm to optimize the energy distribution between the power module, the electrolytic reaction module, and the power module.

[0045] A method for producing hydrogen by electrolysis of water, used in a hydrogen power system for producing hydrogen by electrolysis of water, comprises the following steps:

[0046] S1, add fresh water into the water tank, and then filter the fresh water through the filter to generate pure water;

[0047] S2, transporting the purified water from the filter to the engine exhaust pipe, and using the heat of the engine exhaust pipe to heat the purified water into water vapor;

[0048] S3, transporting the generated water vapor to an electrolytic reaction device, and then decomposing the water vapor into hydrogen and oxygen through the electrolytic reaction device;

[0049] S4. The hydrogen produced by electrolysis passes through an H2 separator, a cooler and a dehumidifier to remove impurities and moisture, and the treated hydrogen is transported to a pure hydrogen storage tank for storage;

[0050] S5. The oxygen produced by electrolysis is processed through an O2 separator, cooler and dehumidifier. Part of the oxygen is discharged into the atmosphere, and the other part is used by the driver when driving on the plateau;

[0051] S6. The lithium battery is charged through the solar panel, wind power generation device and charging port. Before the vehicle is started, the lithium battery provides power for the electrolytic reaction device. After the vehicle is started, the generator provides power support for the electrolytic reaction device and the lithium battery.

[0052] S7. The hydrogen in the pure hydrogen storage tank is transported to the hydrogen-powered engine. The starter motor drives the engine to perform triggering movement. The engine's intake system uses a dual turbocharger and air-to-air intercooling to provide pressurized air. The ignition system includes an ignition coil, a spark plug, and an ignition control module. The control system controls the hydrogen injection amount and ignition time. The engine generates power through four strokes: intake, compression, combustion, and exhaust. The high-temperature exhaust gas discharged during the operation of the engine is used to heat pure water to form water vapor, which enters the electrolysis reaction device for electrolysis and hydrogen production.

[0053] S8. Repeat steps S3-S7.

[0054] The present invention provides a hydrogen power system for producing hydrogen by water electrolysis. It has the following beneficial effects:

[0055] 1. The present invention uses water as a raw material to produce hydrogen through electrolysis. The emission of hydrogen after combustion is pure water, which effectively reduces the emission of greenhouse gases such as carbon dioxide and carbon monoxide, reduces pollution to the environment, and uses renewable energy to power the system, further reducing energy costs.

[0056] 2. The present invention efficiently decomposes water into hydrogen and oxygen through the electrolysis reaction module, further improves energy utilization efficiency through optimization algorithm, and can convert excess energy into electrical energy for storage, thereby improving overall energy efficiency.

[0057] 3. The present invention can be used not only in automobiles, but also in ships, engineering machinery, locomotives, generator sets and other equipment that require power drive. It has broad application prospects. Through distributed control and intelligent energy management systems, the system can flexibly adapt to different operating environments and working conditions and provide stable power output. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a schematic diagram of the system module framework structure of the present invention;

[0059] Figure 2 It is a schematic diagram of the system operation framework of the present invention;

[0060] Figure 3 It is a schematic diagram of the steps of the present invention. DETAILED DESCRIPTION

[0061] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] Example:

[0063] Please see attached Figure 1 -Attached Figure 2 , the embodiment of the present invention provides a hydrogen power system for producing hydrogen by water electrolysis, including a water treatment module, a pure water pretreatment module, an electrolysis reaction module, a hydrogen storage module, an oxygen management module, a power module, a power module, and a control system;

[0064] The water treatment module is connected to the pure water pretreatment module through pipelines, the electrolysis reaction module is connected to the pure water pretreatment module through pipelines, the electrolysis reaction module is connected to the hydrogen storage module through pipelines, the hydrogen storage module is connected to the oxygen management module through pipelines, the hydrogen storage module is connected to the power module through pipelines, the power module is electrically connected to the control system, and the power module is electrically connected to the power module, the control system, the electrolysis reaction module, the hydrogen storage module, and the oxygen management module.

[0065] Specifically, during the operation of this system, the start button is pressed, the motor drives the engine to perform a triggering movement, and the piston starts to move downward from the top dead center. At this time, the pressure in the cylinder is lower than the atmospheric pressure, and the intake valve opens. The downward movement of the piston forms a negative pressure in the cylinder, causing the intake valve to open and send air into the cylinder. The piston starts to move upward from the bottom dead center, and the intake valve closes. The air in the cylinder is compressed when the piston moves upward, and the temperature and pressure increase, generating high-temperature and high-pressure air. When the piston of the cylinder moves to a specific position before the top dead center of the exhaust stroke, the ECU accurately controls the injection amount and injection time of hydrogen according to the amount of air inhaled, and the high-pressure injection device injects hydrogen into the cylinder to form a combustible mixture cloud. At the same time, the ECU sends a signal, and the ignition system ignites the high-temperature and high-pressure fuel and air mixture in the order of 1-5-3-6-2-4 (6-cylinder engine) when the piston moves to the top dead center, generating explosion and pushing the piston downward. The piston moves from the bottom dead center to the top dead center, at which time the intake valve is closed, the exhaust valve is opened, and the high-temperature gas is discharged from the cylinder. The discharged high-temperature gas makes the temperature of the exhaust pipe reach 600-700 degrees. The high-temperature exhaust pipe is used to heat the pure water in the water tank, turning it into water vapor, which is input into the electrolysis device for electrolysis to produce hydrogen, thus realizing a continuous cycle.

[0066] The water treatment module is used to filter the added fresh water to obtain pure water; it includes a water tank and a filter, the water tank is used to store one or more of river water and rain water, and the filter is used to filter fresh water to obtain pure water. The pure water pretreatment module is used to heat the pure water into water vapor by the heat of the engine exhaust pipe for use in electrolysis reaction; it includes the engine exhaust pipe, and the engine exhaust pipe is used to heat the pure water into water vapor by the heat of the exhaust pipe. The electrolysis reaction module is used to decompose water vapor into hydrogen and oxygen through electrolysis reaction; it includes an electrolysis reactor, an H2 separator, an H2 cooler, an H2 dehumidifier, an O2 separator, an O2 cooler, and an O2 dehumidifier;

[0067] The oxygen management module is used for managing and processing the oxygen generated by the electrolysis reaction, and includes an oxygen management unit;

[0068] Specifically, water passes through the filter to become pure water, which is then heated through the engine exhaust pipe and turned into water vapor, which is then input into the electrolysis reaction device and separated into hydrogen and oxygen through electrolysis. The hydrogen is cooled and dehumidified before being stored in a hydrogen storage tank to provide fuel for hydrogen power. Part of the oxygen separated by the electrolysis reaction is discharged into the atmosphere, and the other part is input into the cab for use by the driver when driving on plateaus.

[0069] The hydrogen storage module is used to store the pure hydrogen produced by electrolysis and further dry the hydrogen for use in the vehicle power system; it includes a hydrogen purity meter, a pure hydrogen storage tank, and a hydrogen drying device;

[0070] Specifically, before starting the vehicle, it is necessary to ensure that there is sufficient hydrogen in the storage tank. When the hydrogen in the storage tank is insufficient, hydrogen can be added to the storage tank through an external gas source, or the electrolysis device can be started by a control switch to produce hydrogen.

[0071] The power module is used to provide electrical energy for the electrolytic reaction and the engine; it includes lithium batteries, solar panels, wind power generation devices, and charging ports;

[0072] Specifically, the electrolysis reaction is powered by a lithium battery. Before the engine is started, the lithium battery is charged through a charging pile, a wind power generation device and a solar photovoltaic panel. After the vehicle is started, the generator starts working. When the power of the lithium battery cannot meet the needs of electrolysis, the generator gives priority to powering the electrolysis device, and the remaining power is used to charge the battery. When the power of the lithium battery meets the requirements, the generator stops working and the electrolysis device is powered by the lithium battery.

[0073] The power module is used to drive the engine using hydrogen as fuel, including an intake system, an ignition system, an exhaust system, a cooling system, a lubrication system, a starter motor, a generator, an engine body, and a pressurized air system.

[0074] Specifically, the intake system uses twin turbochargers and air-to-air intercoolers. When the engine is started, the exhaust gas flows into the twin turbochargers, which drives the turbine to rotate. The rotating turbine compresses the air to form high-pressure air, which is then transferred to the engine. After the compressed air enters the engine, it is mixed with fuel in the combustion chamber and burned, thereby providing greater power. While the supercharger provides pressurized air to the engine, the supercharger increases the intake temperature due to compressed air. The air-to-air intercooler reduces the engine intake temperature and increases the intake density by dissipating the heat in the intake air, thereby improving the engine's combustion efficiency and reducing the engine's emissions and the heat load of the cylinder.

[0075] The ignition system of a hydrogen-powered engine includes components such as an ignition coil, a spark plug, and an ignition control module. When the ignition control module receives a trigger signal, it generates a high voltage in the ignition coil to ignite the ignition electrode in the spark plug, thereby igniting the hydrogen, promoting hydrogen explosion, igniting the high-temperature and high-pressure gas, pushing the piston downward, and generating power to do work.

[0076] The control system is used to control the hydrogen injection amount and ignition timing, including ECU and energy control algorithm unit;

[0077] Specifically, the calculation steps of the energy control algorithm are:

[0078] Initialize the particle swarm:

[0079] Initialize the particle swarm, each particle represents a possible energy distribution scheme and system parameter settings, and set the initial position and velocity of each particle.

[0080] Fitness function:

[0081] Design the fitness function and set the operating efficiency and performance indicators of the calculation system according to the energy allocation plan and system parameters. The fitness function considers the following factors: hydrogen production and consumption, electricity consumption and recovery, power output and efficiency.

[0082] Update particle velocity and position:

[0083] Update the particle's velocity and position using the following formula:

[0084]

[0085] x i (t+1)=x i (t)+v i (t+1)

[0086] Among them, v i (t) represents the velocity of particle i at time t, x i (t) represents the position of particle i at time t, ω represents the inertia weight, which controls the decay of particle velocity, c1 and c2 represent learning factors, which control the degree to which the particle follows the personal best position and the global best position, r1 and r2 are random numbers ranging from [0,1]. represents the personal best position of particle i at time t, g best (t) represents the global optimal position.

[0087] Iterative Optimization:

[0088] Repeat steps 2 and 3 until the predetermined number of iterations is reached or the fitness function reaches the set threshold.

[0089] Specific implementation steps:

[0090] Initialization: Initialize the particle swarm. Each particle represents an energy distribution scheme, including the energy distribution parameters between the electrolytic reaction device, the power module, and the power module.

[0091] Fitness function design: Set the fitness function:

[0092] f(x) = α·hydrogen production - β·electricity consumption + γ·power output efficiency - δ

[0093] System fluctuations

[0094] Among them, α, β, γ, and δ are weight coefficients, which are adjusted according to system requirements.

[0095] Update particle speed and position: In each iteration, update the speed and position of each particle according to the formula above.

[0096] Iterative process: Repeatedly calculate the fitness function and update the particle position until the predetermined number of iterations is reached or the fitness function reaches the set threshold.

[0097] Please see attached Figure 3 The embodiment of the present invention provides a method for producing hydrogen by water electrolysis, comprising the following steps:

[0098] S1, add fresh water into the water tank, and then filter the fresh water through the filter to generate pure water;

[0099] S2, transporting the purified water from the filter to the engine exhaust pipe, and using the heat of the engine exhaust pipe to heat the purified water into water vapor;

[0100] S3, transporting the generated water vapor to an electrolytic reaction device, and then decomposing the water vapor into hydrogen and oxygen through the electrolytic reaction device;

[0101] S4. The hydrogen produced by electrolysis passes through an H2 separator, a cooler and a dehumidifier to remove impurities and moisture, and the treated hydrogen is transported to a pure hydrogen storage tank for storage;

[0102] S5. The oxygen produced by electrolysis is processed through an O2 separator, cooler and dehumidifier. Part of the oxygen is discharged into the atmosphere, and the other part is used by the driver when driving on the plateau;

[0103] S6. The lithium battery is charged through the solar panel, wind power generation device and charging port. Before the vehicle is started, the lithium battery provides power for the electrolytic reaction device. After the vehicle is started, the generator provides power support for the electrolytic reaction device and the lithium battery.

[0104] S7. The hydrogen in the pure hydrogen storage tank is transported to the hydrogen-powered engine. The starter motor drives the engine to perform triggering movement. The engine's intake system uses a dual turbocharger and air-to-air intercooling to provide pressurized air. The ignition system includes an ignition coil, a spark plug, and an ignition control module. The control system controls the hydrogen injection amount and ignition time. The engine generates power through four strokes: intake, compression, combustion, and exhaust. The high-temperature exhaust gas discharged during the operation of the engine is used to heat pure water to form water vapor, which enters the electrolysis reaction device for electrolysis and hydrogen production.

[0105] S8. Repeat steps S3-S7.

[0106] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydrogen power system for producing hydrogen by water electrolysis, characterized in that: It includes water treatment module, pure water pretreatment module, electrolysis reaction module, hydrogen storage module, oxygen management module, power module, power module and control system; The water treatment module is used to filter the added fresh water to obtain pure water; The pure water pretreatment module is used to heat the pure water into water vapor through the heat of the engine exhaust pipe for use in electrolysis reaction; The electrolysis reaction module is used to decompose water vapor into hydrogen and oxygen through an electrolysis reaction; The hydrogen storage module is used to store the pure hydrogen generated by electrolysis and further dry the hydrogen for use by the vehicle power system; The oxygen management module is used to manage and process the oxygen generated by the electrolysis reaction; The power module is used to provide electrical energy for the electrolysis reaction and the engine; The power module is used to drive the engine using hydrogen as fuel; The control system is used to control the hydrogen injection amount and ignition time; The water treatment module is connected to the pure water pretreatment module through a pipeline, the electrolysis reaction module is connected to the pure water pretreatment module through a pipeline, the electrolysis reaction module is connected to the hydrogen storage module through a pipeline, the hydrogen storage module is connected to the oxygen management module through a pipeline, the hydrogen storage module is connected to the power module through a pipeline, the power module is electrically connected to the control system, and the power module is electrically connected to the power module, the control system, the electrolysis reaction module, the hydrogen storage module, and the oxygen management module.

2. The water electrolysis hydrogen production hydrogen power system according to claim 1, characterized in that: The water treatment module comprises a water tank and a filter. The water tank is used to store one or more of river water and rain water, and the filter is used to filter fresh water to obtain pure water.

3. The water electrolysis hydrogen production hydrogen power system according to claim 1, characterized in that: The pure water pretreatment module comprises an engine exhaust pipe, and the engine exhaust pipe is used to heat the pure water into water vapor through the heat of the exhaust pipe.

4. The water electrolysis hydrogen production hydrogen power system according to claim 1 is characterized in that: The electrolysis reaction module includes an electrolysis reactor, a H2 separator, a H2 cooler, a H2 dehumidifier, an O2 separator, an O2 cooler, and an O2 dehumidifier; The electrolytic reactor is used to: electrolyze water vapor into hydrogen and oxygen; The H2 separator is used to separate hydrogen; The H2 cooler is used to cool the separated hydrogen; The H2 dehumidifier is used to remove moisture from hydrogen; The O2 separator is used to separate oxygen; The O2 cooler is used to cool the separated oxygen; The O2 dehumidifier is used to remove moisture from oxygen.

5. The water electrolysis hydrogen production hydrogen power system according to claim 1, characterized in that: The hydrogen storage module includes a hydrogen purity meter, a pure hydrogen storage tank, and a hydrogen drying device; The hydrogen purity meter is used to monitor the amount of hydrogen; The pure hydrogen storage tank is used to store pure hydrogen; The hydrogen drying device is used to further dry the hydrogen.

6. The water electrolysis hydrogen production hydrogen power system according to claim 1, characterized in that: The oxygen management module includes an oxygen management unit; The oxygen management unit is used to control the use and discharge of oxygen.

7. The water electrolysis hydrogen production hydrogen power system according to claim 1, characterized in that: The power module includes a lithium battery, a solar panel, a wind power generation device, and a charging port; The lithium battery is used to provide electrical energy for the electrolysis reaction device; The solar panel is used for charging via solar energy; The wind power generation is used for charging through a wind power generation device; The charging port is used as an external power charging interface.

8. The water electrolysis hydrogen production hydrogen power system according to claim 1, characterized in that: The power module includes an intake system, an ignition system, an exhaust system, a cooling system, a lubrication system, a starter motor, a generator, an engine body, and a charge air system; The intake system includes a twin turbocharger and an air-to-air intercooler; the ignition system includes an ignition coil, a spark plug and an ignition control module; the exhaust system is used to discharge high-temperature exhaust gas and preheat pure water; the cooling system is used to reduce the intake temperature and increase the intake density; the lubrication system is used to lubricate the moving parts of the engine; the starter motor is used to initially start the engine; the generator is used to provide power to the electrolysis device and the lithium battery after the vehicle is started; the pressurized air system is used to provide pressurized air to the engine.

9. The water electrolysis hydrogen production hydrogen power system according to claim 1, characterized in that: The control system includes an ECU and an energy control algorithm unit; The energy control algorithm unit uses a particle swarm optimization algorithm to optimize the energy distribution between the power module, the electrolytic reaction module, and the power module.

10. A method for producing hydrogen by water electrolysis, used in the hydrogen production by water electrolysis system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, add fresh water into the water tank, and then filter the fresh water through the filter to generate pure water; S2, transporting the purified water from the filter to the engine exhaust pipe, and using the heat of the engine exhaust pipe to heat the purified water into water vapor; S3, transporting the generated water vapor to an electrolytic reaction device, and then decomposing the water vapor into hydrogen and oxygen through the electrolytic reaction device; S4. The hydrogen produced by electrolysis passes through an H2 separator, a cooler and a dehumidifier to remove impurities and moisture, and the treated hydrogen is transported to a pure hydrogen storage tank for storage; S5. The oxygen produced by electrolysis is processed through an O2 separator, cooler and dehumidifier. Part of the oxygen is discharged into the atmosphere, and the other part is used by the driver when driving on the plateau; S6. The lithium battery is charged through the solar panel, wind power generation device and charging port. Before the vehicle is started, the lithium battery provides power for the electrolytic reaction device. After the vehicle is started, the generator provides power support for the electrolytic reaction device and the lithium battery. S7. The hydrogen in the pure hydrogen storage tank is transported to the hydrogen-powered engine. The starter motor drives the engine to perform triggering movement. The engine's intake system uses a dual turbocharger and air-to-air intercooling to provide pressurized air. The ignition system includes an ignition coil, a spark plug, and an ignition control module. The control system controls the hydrogen injection amount and ignition time. The engine generates power through four strokes: intake, compression, combustion, and exhaust. The high-temperature exhaust gas discharged during the operation of the engine is used to heat pure water to form water vapor, which enters the electrolysis reaction device for electrolysis and hydrogen production. S8. Repeat steps S3-S7.

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