Reversible hydrogen energy integration system

Abstract

The invention relates to a reversible hydrogen energy integration system, and relates to the technical field of hydrogen energy, the reversible hydrogen energy integration system comprises a concentrating photovoltaic module, a desalination module and a hydrogen production module, electric energy generated by the concentrating photovoltaic module and fresh water generated by the desalination module are provided for the hydrogen production module for hydrogen production, and waste heat generated by the concentrating photovoltaic module is provided for the desalination module for desalination. High-efficiency integration of hydrogen production, hydrogen storage and hydrogen utilization can be realized in the same system, equipment redundancy and cost are reduced, and hydrogen energy recycling can be realized by adopting a bifunctional catalyst electrode and intelligent energy management.

Description

Technical Field

[0001] The present disclosure relates to the field of hydrogen energy technology, and in particular to a reversible hydrogen energy integrated system. Background Art

[0002] As a key strategic direction for the global energy transition in the 21st century, the development of hydrogen energy has far-reaching strategic significance and practical urgency. From an energy security perspective, hydrogen energy, as a secondary energy carrier, can effectively integrate renewable and fossil energy, build a diversified clean energy supply system, and reduce dependence on traditional energy sources such as oil and natural gas. Especially in the context of China's energy structure, which is "rich in coal, short of oil, and low in gas," the development of green hydrogen (hydrogen produced through water electrolysis using renewable energy) can help achieve energy independence and control and enhance national energy security and resilience.

[0003] In terms of environmental benefits, the large-scale application of hydrogen energy will accelerate the process of achieving carbon peak and carbon neutrality. Hydrogen fuel cell vehicles emit only water, and replacing coal with hydrogen in the industrial sector can reduce carbon dioxide emissions by more than 90%. Research by the International Energy Agency (IEA) shows that by 2070, global hydrogen demand will increase sevenfold, contributing 13% of carbon emissions reductions. This zero-carbon characteristic makes it a key tool for deep decarbonization in difficult-to-electrify sectors such as steel, chemicals, and shipping. Therefore, how to achieve the recycling of hydrogen energy has become a technical challenge that technicians in this field urgently need to solve. Summary of the Invention

[0004] In order to solve the above technical problems, the present disclosure provides a reversible hydrogen energy integration system for reducing equipment redundancy and cost, using bifunctional catalysts and intelligent energy management to achieve hydrogen energy recycling.

[0005] In a first aspect, the present disclosure provides a reversible hydrogen energy integration system, comprising: a concentrating photovoltaic module, a desalination module, and a hydrogen production module. The electric energy generated by the concentrating photovoltaic module and the fresh water generated by the desalination module are used to provide hydrogen to the hydrogen production module, and the waste heat generated by the concentrating photovoltaic module is used to provide desalination to the desalination module.

[0006] Optionally, the hydrogen production module includes an electrolyzer fuel cell integrated device, the device includes a bifunctional catalyst electrode, and the bifunctional catalyst electrode material includes a graphene-loaded metal-organic framework material.

[0007] Optionally, the hydrogen production module includes a hydrogen storage tank, which is connected to the device and is filled with a metal-organic framework material.

[0008] Optionally, the reversible hydrogen energy integrated system further includes a control module, the operating modes of the electrolyzer fuel cell integrated device include electrolysis mode and power generation mode, and the control is used to control the automatic switching between the electrolysis mode and the power generation mode; the control module is also used to dynamically adjust the temperature of the hydrogen storage tank.

[0009] Optionally, the electrolyzer fuel cell integrated device includes an anode bipolar plate, an anode gas diffusion layer, an anode catalyst layer, a proton exchange membrane, a cathode catalyst layer, a cathode gas diffusion layer and a cathode bipolar plate;

[0010] The anode bipolar plate and the cathode bipolar plate are symmetrically arranged along the proton exchange membrane, and the anode catalyst layer and the cathode catalyst layer are symmetrically arranged along the proton exchange membrane and located between the anode bipolar plate and the cathode bipolar plate; the anode gas diffusion layer is located between the anode bipolar plate and the anode catalyst layer, and the cathode gas diffusion layer is located between the cathode bipolar plate and the cathode catalyst layer.

[0011] Optionally, the anode catalyst layer material includes a Pt-loaded IrO 2 composite material, and the cathode catalyst layer material includes a MoS 2-loaded metal alloy material.

[0012] Optionally, the desalination module includes a dehumidifier, a humidifier, and a heat exchanger, the heat exchanger is connected to the dehumidifier and the humidifier respectively, seawater flows from the dehumidifier to the humidifier through the heat exchanger, and the dehumidifier is configured to receive seawater and transfer the seawater from the heat exchanger to the humidifier.

[0013] Optionally, the desalination module further comprises a blower, wherein the blower is used to introduce cold air into the humidifier, and the flow direction of the cold air is opposite to that of the seawater.

[0014] Optionally, the concentrated photovoltaic module is configured to provide the generated waste heat to the heat exchanger for heating the seawater flowing into the heat exchanger.

[0015] Optionally, a structured filler is provided inside the humidifier.

[0016] The technical solution provided by the disclosed embodiments offers the following advantages over existing technologies: The hydrogen production module utilizes concentrated photovoltaic modules to generate electricity and drive the integrated electrolyzer fuel cell device. The bifunctional catalyst electrodes can operate in both electrolysis and power generation modes. A solid-state hydrogen storage tank filled with metal-organic framework (MOF) materials stores hydrogen at high density, achieving integrated hydrogen production, utilization, and storage. During the day, when the concentrated photovoltaic modules generate sufficient electricity, the system activates electrolysis mode, decomposing freshwater produced by the desalination module into H2 and O2, with H2 adsorbed into the hydrogen storage tank. At night or on cloudy days, the system switches to power generation mode, with the bifunctional catalyst electrodes operating in reverse, releasing H2 from the solid-state hydrogen storage tank to generate electricity. The concentrated photovoltaic modules simultaneously generate waste heat that is provided to the desalination module, improving the energy efficiency of seawater desalination. This reversible system efficiently integrates hydrogen production, storage, and utilization, with the same electrodes operating efficiently in both electrolysis and power generation modes, reducing equipment redundancy and costs. The bifunctional catalyst electrodes and intelligent energy management enable hydrogen energy recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0018] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 Shown is a schematic diagram of a reversible hydrogen energy integration system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features therein can be combined with each other in the absence of conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0022] Figure 1 The figure shows a schematic diagram of a reversible hydrogen energy integrated system provided by the embodiment of the present disclosure. Please refer to Figure 1The present disclosure provides a reversible hydrogen energy integrated system 100, including: a concentrating photovoltaic module 10, a desalination module 20, and a hydrogen production module 30. The electric energy generated by the concentrating photovoltaic module 10 and the fresh water generated by the desalination module 20 are used to provide hydrogen to the hydrogen production module 30 for hydrogen production, and the waste heat generated by the concentrating photovoltaic module 10 is used to provide desalination to the desalination module 20 for desalination.

[0023] Specifically, a concentrating photovoltaic module 10 includes multiple photovoltaic cells 11. Using lenses or mirrors, the module focuses a large amount of sunlight onto a small area of ​​a photovoltaic unit lens, reflector, or prism. This concentrated sunlight is then directed onto the photovoltaic cells 11, improving the photovoltaic cell's 11 photoelectric conversion efficiency. However, this process causes the temperature of the photovoltaic cells 11 to rise. Excessively high temperatures in the photovoltaic cells 11 can reduce power generation efficiency and may even damage the photovoltaic elements. Therefore, utilizing this heat can significantly improve the efficiency of concentrating photovoltaics. By using water as a carrier to extract the waste heat generated by the concentrating photovoltaic module 10, hot water at 60-70°C can be obtained. Generally, this low-grade thermal energy cannot be utilized. The present disclosure proposes providing the hot water generated by the concentrating photovoltaic module 10 to the heat exchanger 22 of the desalination module 20 for heating seawater during the humidification, dehumidification and desalination processes, thereby improving the efficiency of seawater desalination. The hot water generated by the concentrating photovoltaic module 10 exchanges heat with the seawater in the heat exchanger 22, heating the seawater. The cooled hot water then flows back through the pipeline to the concentrating photovoltaic module 10, where it continues to cool the photovoltaic cells 11 and absorbs heat. It then flows back into the heat exchanger 22 to heat the seawater, thus completing the cycle. This improves the utilization rate of the waste heat from the concentrating photovoltaic module 10, reduces damage to the photovoltaic cells 11, eliminates the need for an additional heat source for seawater desalination, and improves the energy efficiency of the reversible hydrogen energy integrated system 100.

[0024] The electricity generated by the CPV module 10 is supplied to the hydrogen production module 30, where it is used to generate hydrogen during the water electrolysis process. When the CPV module 10 is unable to perform photoelectric conversion due to insufficient light at night or on cloudy days, the hydrogen generated by the water electrolysis process in the hydrogen production module 30 is used as a fuel cell to generate electricity, thus completing the hydrogen production and utilization cycle.

[0025] The waste heat generated by cooling the photovoltaic cells 11 in the concentrating photovoltaic module 10 is used to heat the seawater to be desalinated in the desalination module 20, thereby reducing the setting of external heat sources and realizing heat circulation within the reversible hydrogen energy integrated system 100; the fresh water formed by the desalination of seawater in the desalination module 20 can be used as a raw material for the hydrogen production process of water electrolysis in the hydrogen production module 30, and is used for hydrogen production, thereby realizing water circulation within the system.

[0026] In an optional embodiment provided by the present disclosure, the hydrogen production module 30 includes an electrolyzer fuel cell integrated device 31, the electrolyzer fuel cell integrated device 31 includes a bifunctional catalyst electrode, and the electrode material includes a graphene-loaded metal organic framework material, specifically, the electrode material includes a graphene-loaded NiFe-MOF composite material.

[0027] Specifically, the bifunctional catalyst electrode can bidirectionally switch between electrolysis mode and power generation mode in the electrolyzer fuel cell integrated device 31. Specifically, the electrolysis mode is a reaction mode in which water is electrolyzed to generate hydrogen and oxygen, and the power generation mode is a reaction mode in which hydrogen and oxygen are used as fuel cells to generate electricity. During the day, when the concentrating photovoltaic module 10 generates sufficient electricity, the electrolyzer fuel cell integrated device 31 starts the electrolysis mode. The electrolyzer fuel cell integrated device 31 uses the fresh water produced by desalination of seawater in the desalination module 20 as the water source, decomposing it into H2 and O2. The H2 is adsorbed into the hydrogen storage tank 32, which is filled with a metal organic framework (MOF) material to increase the hydrogen storage density of the hydrogen storage tank 32. At night or on cloudy days, the electrolyzer fuel cell integrated device 31 switches to power generation mode, and the bifunctional catalyst electrode works in reverse, and the solid-state hydrogen storage tank 32 releases H2 for power generation.

[0028] The graphene-supported NiFe-MOF composite material is synthesized via a simple metal-organic framework precursor pathway. Because this material combines the high activity of metal-organic frameworks with the high conductivity of graphene, the addition of NiFe-MOF to multilayer graphene significantly enhances its oxygen evolution reaction (OER) performance, thereby increasing the efficiency of hydrogen production from water electrolysis. Thus, the bifunctional catalyst electrode using the graphene-supported NiFe-MOF composite material can effectively enhance the dual-mode switching of the integrated electrolyzer fuel cell device 31 and improve its efficiency in the hydrogen production process from water electrolysis.

[0029] In an optional embodiment provided by the present disclosure, the hydrogen production module 30 includes a hydrogen storage tank 32, which is connected to the electrolyzer fuel cell integrated device 31, and the hydrogen storage tank 32 is filled with a metal-organic framework material. Optionally, the hydrogen storage tank 32 and the electrolyzer fuel cell integrated device 31 can be connected by a pipeline to facilitate the entry of hydrogen generated by the electrolyzer fuel cell integrated device 31 into the hydrogen storage tank. The hydrogen storage tank 32 can also be electrically connected to the electrolyzer fuel cell integrated device 31 to dynamically adjust the adsorption or desorption rate of hydrogen, which is not limited by the present disclosure.

[0030] Specifically, metal-organic framework materials are a type of organic-inorganic hybrid material with intramolecular voids formed by self-assembly of metal ions or clusters and organic ligands through coordination bonds. Metal-organic framework materials have a high specific surface area and high porosity, and can produce a good adsorption effect on hydrogen. Filling the hydrogen storage tank 32 with metal-organic framework materials can achieve high-density hydrogen storage under conditions of 30-50°C and less than 10MPa. The high porosity of the metal-organic framework material is conducive to the adsorption of hydrogen. The present disclosure can achieve safe hydrogen storage at low pressure only through physical adsorption, and achieve rapid hydrogen absorption / release in combination with heat exchange. Compared with the related art of storing hydrogen in liquid or other forms, the hydrogen stored in the form of direct adsorption provided by the present disclosure is safer, can reduce energy loss, and achieve high-density storage of hydrogen without additional pressurization, thereby improving adsorption efficiency.

[0031] In an optional embodiment provided by the present disclosure, the reversible hydrogen energy integrated system 100 also includes a control module (not shown in the figure), which is used to control the automatic switching of the electrolysis mode and the power generation mode of the electrolyzer fuel cell integrated device 31; to achieve intelligent management, real-time monitoring of energy supply and demand, automatic switching of working modes, and optimization of thermal management, and use the waste heat generated in the power generation mode to preheat the electrolyzer in the electrolysis mode.

[0032] The control module is also used to dynamically adjust the temperature of the hydrogen storage tank 32 to optimize the adsorption or desorption rate. For example, when the pressure in the hydrogen storage tank 32 is much lower than the ultimate pressure that the hydrogen storage tank 32 can withstand, the hydrogen adsorption rate is increased by lowering the temperature of the hydrogen storage tank 32; when the pressure in the hydrogen storage tank 32 is close to the ultimate pressure, the hydrogen adsorption rate is slowed down by increasing the temperature of the hydrogen storage tank 32 to achieve dynamic adjustment of the hydrogen adsorption rate. Similarly, in the power generation mode, the hydrogen desorption rate is dynamically adjusted by dynamically adjusting the temperature of the hydrogen storage tank 32 to improve power generation efficiency. The present disclosure does not limit the range of temperature adjustment of the hydrogen storage tank 32, and it can be set specifically according to environmental conditions, actual working conditions, etc.

[0033] The control module may include, for example, a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The memory may be a smart media card (SMC), a secure digital (SD) card, a flash card, etc. The memory is used to store an operating system, application programs, a boot loader, data, and other programs, such as the program code of a computer program. The memory may also be used to temporarily store data that has been output or is about to be output.

[0034] In an optional embodiment provided in the present disclosure, the electrolyzer fuel cell integrated device 31 includes an anode bipolar plate, an anode gas diffusion layer (GDL), an anode catalyst layer, a proton exchange membrane (PEM), a cathode catalyst layer, a cathode gas diffusion layer and a cathode bipolar plate; the anode bipolar plate and the cathode bipolar plate are symmetrically arranged along the proton exchange membrane, and the anode catalyst layer and the cathode catalyst layer are symmetrically arranged along the proton exchange membrane and are located between the anode bipolar plate and the cathode bipolar plate; the anode gas diffusion layer is located between the anode bipolar plate and the anode catalyst layer, and the cathode gas diffusion layer is located between the cathode bipolar plate and the cathode catalyst layer.

[0035] Specifically, the anode bipolar plate is made of a corrosion-resistant, highly conductive platinum-plated titanium alloy. Gas flow channels are etched into the surface, allowing water / oxygen to flow in the electrolysis mode and hydrogen to flow in the fuel cell mode. The anode bipolar plate channel is designed as a bidirectional, reversible path, with an external valve switching the gas flow direction between different modes.

[0036] The anode gas diffusion layer and the cathode gas diffusion layer are both made of high-porosity, conductive carbon fiber paper, which is conducive to uniform distribution of reaction gas and conduction of electrons.

[0037] The anode catalyst layer catalyzes the oxygen evolution reaction (OER) in the water electrolysis hydrogen production working mode; and catalyzes the hydrogen oxidation reaction (HOR) in the fuel cell power generation working mode. The anode catalyst material adopts Pt-loaded IrO2 composite material.

[0038] The proton exchange membrane (PEM) material is Nafion 117, a perfluorosulfonic acid membrane that is resistant to chemical corrosion and suitable for bidirectional proton exchange (H + ) conduction, which is beneficial to isolate hydrogen and oxygen.

[0039] The cathode catalyst layer catalyzes the hydrogen evolution reaction (HER) in the water electrolysis hydrogen production working mode; and catalyzes the oxygen reduction reaction (ORR) in the fuel cell power generation working mode. The cathode catalyst material is a metal alloy material loaded with MoS2, for example, it can be a Pt-Co / MoS2 heterojunction.

[0040] The cathode bipolar plate is made of gold-plated stainless steel. Hydrogen flows through the plate in water electrolysis mode, while oxygen / air flows through the plate in fuel cell power generation mode. The cathode bipolar plate flow path is designed as a bidirectional, reversible pathway, with an external valve switching the gas flow direction between electrolysis and power generation modes.

[0041] The working principle of the hydrogen production module 30 is as follows: In the electrolysis mode, the fresh water produced by the desalination module 20 can be used as the raw material for hydrogen production by electrolysis. The fresh water enters the anode bipolar plate flow channel and is decomposed into O2 and H at the anode. + ;H + H2 is generated through the proton exchange membrane to the cathode and stored in the hydrogen storage tank 32. In the power generation mode, the hydrogen storage tank 32 releases H2 to the anode bipolar plate flow channel, and air and O2 enter the cathode bipolar plate flow channel; H2 is oxidized to H2 at the anode. + , H + By combining with O2, it generates water and generates electricity.

[0042] Please continue to refer to Figure 1 In an optional embodiment provided by the present disclosure, the desalination module 20 includes a dehumidifier 21, a humidifier 23, and a heat exchanger 22. The heat exchanger 22 is connected to the dehumidifier 21 and the humidifier 23, respectively. The dehumidifier 21 is configured to receive seawater and transfer the seawater from the heat exchanger 22 to the humidifier 23. The seawater flows from the dehumidifier 21 to the humidifier 23 through the heat exchanger 22. A part of the seawater is condensed into brine and discharged from the bottom of the humidifier 23, and the other part evaporates to the dehumidifier 21 and condenses into fresh water and is discharged. The fresh water is used to produce hydrogen in the hydrogen production module 30. It should be noted that the "connection" in this embodiment can refer to a mechanical connection, such as connection through a pipeline, or an electrical connection, and the present disclosure is not limited to this.

[0043] Specifically, seawater is pumped into the dehumidifier 21 pipeline at state point ①, which is set at 30°C, for preheating. As water vapor in humidifier 23 flows from state point ⑥ to dehumidifier 21, the seawater pumped into dehumidifier 21 can recover some of its heat energy from the condensed water vapor. The preheated seawater leaves dehumidifier 21 at state point ② and enters heat exchanger 22 for heating. The heated seawater reaches a temperature of approximately 70°C. The heated seawater, heated by heat exchanger 22, is sprayed into humidifier 23 at state point ③. The humidifier is filled with structured fillers, which increase the spread of the heated seawater, enabling sufficient heat and mass transfer and facilitating its evaporation into water vapor. A portion of the heated seawater in humidifier 23 evaporates in the airflow, while the remainder condenses into brine and is discharged from the bottom of humidifier 23.

[0044] In an optional embodiment provided by the present disclosure, the desalination module 20 further includes a blower 24, which is used to introduce cold air into the humidifier 23, and the flow direction of the cold air is opposite to that of the seawater.

[0045] Specifically, a blower 24 is provided on one side of the humidifier 23. After the heated seawater is sprayed into the humidifier 23, the blower 24 blows cold air into the humidifier 23. The cold air directly contacts the hot seawater injected into the humidifier 23, being heated and humidified to form water vapor. This water vapor reaches saturation at the outlet of state point ⑥. The water vapor then flows into the dehumidifier 21, where it undergoes heat exchange with the seawater pumped into the dehumidifier 21. The water vapor condenses to form fresh water, which can be used as a raw material for the hydrogen production module 30 during the water electrolysis hydrogen production process. The seawater pumped into the dehumidifier 21 is preliminarily preheated and further transported to the heat exchanger 22 for heating. In addition, a blower 24 can also be provided on the side of the dehumidifier 21. The cold air from state point ① is led back to the humidifier 23 by the blower 24 through state points ④ and ⑤, repeating the above process.

[0046] Cold air (dashed line) flows counterclockwise through the packaging material in humidifier 23. Seawater (solid line) flows from dehumidifier 21 through heat exchanger 22 to humidifier 23. The flow of cold air is opposite to that of seawater, enabling the dual processes of seawater heating and water vapor condensation to be achieved in desalination module 20, simplifying the desalination process and improving desalination efficiency.

[0047] In an optional embodiment provided by the present disclosure, the concentrated photovoltaic module 10 is configured to provide the generated waste heat to the heat exchanger 22 for heating the seawater flowing into the heat exchanger 22 .

[0048] Specifically, waste heat generated by the concentrating photovoltaic module 10 is conducted using water as a carrier and provided to the heat exchanger 22 in the desalination module 20. Specifically, a water circulation pipeline 12 can be provided in the concentrating photovoltaic module 10, with at least a portion of the water circulation pipeline 12 disposed within the heat exchanger 22. When the hot water generated by the concentrating photovoltaic module 10 flows along the water circulation pipeline 12, seawater entering the heat exchanger 22 exchanges heat with the hot water in the water circulation pipeline 12. The heated seawater then flows to the humidifier 23, where it further evaporates to form water vapor. The disclosed embodiment utilizes waste heat generated by the concentrating photovoltaic module 10 to heat seawater. This, on the one hand, reduces the temperature of the photovoltaic cell 11, thereby mitigating the reduction in power generation efficiency caused by overheating of the photovoltaic cell 11. On the other hand, it eliminates the need for additional seawater heating, thereby reducing energy consumption and system costs.

[0049] In an optional embodiment provided by the present disclosure, a structured filler is provided inside the humidifier 23 .

[0050] Specifically, a structured packing is a chromatographic packing with a regular geometric shape, which can be in the form of a plate, mesh, or block. It usually has a uniform shape and size, and can achieve good fluid distribution and mass transfer effects. Structured packing includes metal foam packing, ceramic gradient packing, etc., and this disclosure does not specifically limit the type of structured packing. The seawater heated by the heat exchanger 22 is sprayed onto the structured packing in the humidifier 23. The unique geometric structure and surface characteristics of the structured packing help to increase the spread area of ​​seawater on the surface of the structured packing, improve the evaporation efficiency of seawater, and thus improve the desalination efficiency of seawater.

[0051] In summary, the present disclosure provides a reversible hydrogen energy integrated system, including: a concentrating photovoltaic module, a desalination module, and a hydrogen production module. By using the waste heat of the concentrating photovoltaic module as a heating source for seawater in the desalination module, the waste heat utilization rate of the concentrating photovoltaic module can be improved, and the damage to the photovoltaic cell caused by high temperature can be reduced; the hydrogen production module uses a bifunctional catalyst electrode of a graphene-loaded NiFe-MOF composite material, which can effectively improve the dual working mode switching of the electrolyzer fuel cell integrated device and improve its working efficiency in the electrolysis mode; by filling the hydrogen storage tank with a metal organic framework, the hydrogen production module ... the working efficiency of the electrolyzer fuel cell integrated device The framework material can achieve safe hydrogen storage at low pressure only through physical adsorption, thereby improving the safety of hydrogen storage; the control module can monitor energy supply and demand in real time, automatically switch working modes, realize intelligent management, and dynamically adjust the temperature of the hydrogen storage tank to optimize the adsorption or desorption rate; by setting structured fillers in the humidifier, the surface area of ​​hot seawater can be increased, which is conducive to improving its evaporation efficiency; by setting a blower in the desalination module, the condensation efficiency of water vapor condensation to form fresh water can be improved, and the dual processes of seawater heating and water vapor condensation can be realized simultaneously in the desalination module, simplifying the seawater desalination steps.

[0052] The foregoing description is intended only to provide specific embodiments of the present disclosure, intended to enable those skilled in the art to understand and implement the present disclosure. Various modifications to these embodiments will be readily apparent to those 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 disclosure. Therefore, the present disclosure is not intended to be limited to the embodiments described herein, but rather to be construed in the broadest manner consistent with the principles and novel features disclosed herein.

Claims

1. A reversible hydrogen energy integrated system, characterized in that: include: A concentrating photovoltaic module, a desalination module, and a hydrogen production module. The electric energy generated by the concentrating photovoltaic module and the fresh water generated by the desalination module are used to provide hydrogen to the hydrogen production module, and the waste heat generated by the concentrating photovoltaic module is used to provide desalination to the desalination module.

2. The reversible hydrogen energy integrated system according to claim 1, characterized in that: The hydrogen production module comprises an electrolyzer fuel cell integrated device, the device comprises a bifunctional catalyst electrode, and the bifunctional catalyst electrode material comprises a graphene-loaded metal organic framework material.

3. The reversible hydrogen energy integrated system according to claim 2, characterized in that: The hydrogen production module includes a hydrogen storage tank, which is connected to the device and filled with metal organic framework material.

4. The reversible hydrogen energy integrated system according to claim 3, characterized in that: The reversible hydrogen energy integrated system also includes a control module. The operating modes of the electrolyzer fuel cell integrated device include electrolysis mode and power generation mode. The control module is used to control the automatic switching between the electrolysis mode and the power generation mode; the control module is also used to dynamically adjust the temperature of the hydrogen storage tank.

5. The reversible hydrogen energy integrated system according to claim 2, characterized in that: The electrolyzer fuel cell integrated device includes an anode bipolar plate, an anode gas diffusion layer, an anode catalyst layer, a proton exchange membrane, a cathode catalyst layer, a cathode gas diffusion layer and a cathode bipolar plate; The anode bipolar plate and the cathode bipolar plate are symmetrically arranged along the proton exchange membrane, and the anode catalyst layer and the cathode catalyst layer are symmetrically arranged along the proton exchange membrane and located between the anode bipolar plate and the cathode bipolar plate; the anode gas diffusion layer is located between the anode bipolar plate and the anode catalyst layer, and the cathode gas diffusion layer is located between the cathode bipolar plate and the cathode catalyst layer.

6. The reversible hydrogen energy integrated system according to claim 5, characterized in that: The anode catalyst layer material includes a Pt-loaded IrO2 composite material, and the cathode catalyst layer material includes a MoS2-loaded metal alloy material.

7. The reversible hydrogen energy integrated system according to claim 1, characterized in that: The desalination module includes a dehumidifier, a humidifier, and a heat exchanger. The heat exchanger is connected to the dehumidifier and the humidifier respectively. The dehumidifier is configured to receive seawater and transfer the seawater from the heat exchanger to the humidifier.

8. The reversible hydrogen energy integrated system according to claim 7, characterized in that: The desalination module further includes a blower, which is used to introduce cold air into the humidifier, and the cold air flows in the opposite direction to the seawater.

9. The reversible hydrogen energy integrated system according to claim 7, characterized in that: The concentrated photovoltaic module is configured to provide the generated waste heat to the heat exchanger for heating the seawater flowing into the heat exchanger.

10. The reversible hydrogen energy integrated system according to claim 7, characterized in that: The humidifier is provided with structured filler inside.

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