CN117674250A - Hydrogen energy storage thermoelectric oxygen triple supply device and working method thereof - Google Patents

Hydrogen energy storage thermoelectric oxygen triple supply device and working method thereof Download PDF

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Publication number
CN117674250A
CN117674250A CN202311402585.5A CN202311402585A CN117674250A CN 117674250 A CN117674250 A CN 117674250A CN 202311402585 A CN202311402585 A CN 202311402585A CN 117674250 A CN117674250 A CN 117674250A
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module
hydrogen
oxygen
storage
energy
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徐宏宁
王杰
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Qingdao Chuangqi Xinde New Energy Technology Co ltd
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Qingdao Chuangqi Xinde New Energy Technology Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C25B15/021—Process control or regulation of heating or cooling
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/60—Constructional parts of cells
    • C25B9/67—Heating or cooling means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0656—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy
    • H02J15/008—Systems for storing electric energy using hydrogen as energy vector
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/388—Islanding, i.e. disconnection of local power supply from the network
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/30—The power source being a fuel cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
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  • Automation & Control Theory (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Energy (AREA)
  • Fuel Cell (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention discloses a hydrogen energy storage thermoelectric oxygen triple supply device and a working method thereof, and belongs to the field of energy storage. The hydrogen energy storage thermoelectric oxygen triple supply device comprises a renewable energy power generation module, an electric control module, an electrolysis water module, an oxygen storage and supply module, an energy storage module, a hydrogen storage module and a fuel cell module; the renewable energy source power generation module is connected with the electric control module, and the electric control module is respectively connected with the water electrolysis module and the energy storage module; the electrolytic water module is respectively connected with the hydrogen storage module and the oxygen storage and supply module, and the hydrogen storage module is connected with the fuel cell module; the fuel cell module is also connected with the energy storage module; the energy storage module is connected with the inverter. The invention generates hydrogen by electrolysis of water through power generation of photovoltaic/wind energy, converts electric energy into hydrogen to be stored and simultaneously supplies oxygen to the outside; compared with the lithium battery with the same energy storage capacity, the lithium battery has higher long-period survival rate and higher quality hydrogen storage efficiency.

Description

Hydrogen energy storage thermoelectric oxygen triple supply device and working method thereof
Technical Field
The invention relates to the field of energy storage, in particular to a hydrogen energy storage thermoelectric oxygen triple supply device and a working method of the thermoelectric oxygen triple supply device.
Background
Along with the continuous promotion of the construction of the renewable energy power generation device in the whole country, the speed increase of the total power generation power is continuously enlarged; however, because of the limitation of the power on-grid quota, a large amount of abandoned electricity is caused by the photovoltaic and wind power which are excessively built, so that the development of the energy storage system suitable for renewable energy power generation becomes a key for improving the energy utilization rate.
The lithium battery energy storage system widely adopted at the present stage is simple to operate and high in energy conversion efficiency, but the problems of inapplicability to low-temperature environments, high safety risk and the like exist under the current technical conditions, and the cost is greatly increased along with the scale increase. And the hydrogen is used as an energy storage medium, so that zero-carbon operation can be realized in the whole process, the hydrogen amount cannot be attenuated with time, and stable operation can be kept in a wider temperature range.
Disclosure of Invention
Based on the technical problems, the invention provides a hydrogen energy storage thermoelectric oxygen triple supply device and a working method of the thermoelectric oxygen triple supply device. The invention uses hydrogen as the energy storage medium, and can realize the efficient storage and utilization of electric power.
The technical scheme adopted by the invention is as follows:
the hydrogen energy storage thermoelectric oxygen triple supply device comprises a renewable energy power generation module, an electric control module, an electrolysis water module, an oxygen storage and supply module, an energy storage module, a hydrogen storage module and a fuel cell module;
the renewable energy source power generation module is connected with the electric control module, and the electric control module is respectively connected with the water electrolysis module and the energy storage module;
the water electrolysis module is connected with the hydrogen storage module and the oxygen storage and supply module, and the hydrogen storage module is connected with the fuel cell module;
the fuel cell module is also connected with the energy storage module;
the energy storage module is connected with the inverter.
Preferably, the hydrogen energy storage thermoelectric oxygen triple supply device further comprises a hot water tank, wherein the fuel cell module is connected with the hot water tank through a hot water recovery pipeline, and the hot water tank is connected with the electrolytic water module through a hot water circulation pipeline.
Preferably, the hydrogen energy storage thermoelectric oxygen triple supply device further comprises a heat supply module for heat exchange and temperature rise of tap water, and the heat supply module is connected with the fuel cell module and the electrolyzed water module.
Preferably, the heat supply module comprises a heat exchanger, wherein a tube side inlet of the heat exchanger is connected with a tap water supply pipeline, and a tube side outlet of the heat exchanger is connected with a hot water tank through a hot water conveying pipeline;
a water circulation pipeline is arranged between the fuel cell module and the electrolyzed water module, the shell side of the heat exchanger is connected in series on the water circulation pipeline, and a heat exchange pump is also arranged on the water circulation pipeline.
Preferably, the renewable energy power generation module adopts a photovoltaic power generation device and/or a wind power generation device.
Preferably, the water electrolysis module comprises an electrolysis tank, a hydrogen outlet of the electrolysis tank is connected with the hydrogen storage module through a hydrogen conveying pipeline, and a gas purifying device is arranged on the hydrogen conveying pipeline.
Preferably, the electrolytic cell is an alkaline electrolytic cell or a proton exchange membrane electrolytic cell.
Preferably, an oxygen outlet of the electrolytic tank is connected with an oxygen storage and supply module; the oxygen storage and supply module comprises an oxygen storage tank, an oxygen outlet of the electrolytic tank is connected with the oxygen storage tank through an oxygen conveying pipeline, and an oxygen compressor is arranged on the oxygen conveying pipeline.
Preferably, the hydrogen storage module is a metal hydrogen storage module, and the adopted metal hydrogen storage medium is titanium-manganese binary alloy or magnesium-based alloy.
The working method of the hydrogen energy storage thermoelectric oxygen triple supply device comprises the following steps:
(1) The renewable energy source power generation module is used for converting solar energy or wind energy into electric energy, and the electric energy is stored in the energy storage module through the electric control module; the electric control module also provides electric energy for the water electrolysis module, hydrogen generated by the water electrolysis module is stored in the hydrogen storage module, and oxygen generated by the water electrolysis module is stored in the oxygen storage and supply module;
(2) When the power generation condition of the renewable energy power generation module is not met, controlling hydrogen in the hydrogen storage module to enter the fuel cell module, enabling the hydrogen to react with air in the fuel cell module, and transmitting generated electric energy to the energy storage module;
(3) The fuel cell module circulates hot water generated in the reaction power generation process to the electrolysis water module, and exchanges heat with tap water in the circulation process through the heat supply module to heat the tap water, and the heated tap water is conveyed into the hot water tank.
The beneficial technical effects of the invention are as follows:
1. the invention provides a thermoelectric oxygen triple supply device using hydrogen as an energy storage medium, which generates electricity through photovoltaic/wind energy to supply electrolyzed water to prepare hydrogen, and converts the electric energy into hydrogen to be stored; compared with the lithium battery with the same energy storage capacity, the lithium battery has higher long-period survival rate and higher quality hydrogen storage efficiency. For a small or movable energy supply platform, the system also has smaller occupied area and flexible arrangement mode, and meanwhile, the system has an outward oxygen supply working mode and also has wider application scenes.
2. When the thermoelectric oxygen triple supply device adopts hydrogen as an energy storage medium, the heat supply module is used for supplying heat to the outside, and a heat exchanger in the heat supply module recovers heat generated in the running process of the electrolytic water module and the fuel cell module, exchanges heat with tap water and heats the tap water, so that the temperature of the tap water can be raised to more than 70 ℃. The thermoelectric oxygen triple supply device can supply power outwards and simultaneously supply heat outwards in a hot water mode, so that the energy efficiency of the device is maximized.
Drawings
The invention is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a schematic diagram of the structural principle of an embodiment of the hydrogen-storage thermoelectric oxygen triple co-generation device of the present invention;
FIG. 2 is a schematic diagram of the structure of another embodiment of the hydrogen-storage thermoelectric oxygen triple co-generation device of the present invention;
fig. 3 is a schematic diagram of a connection between a heating module and a fuel cell module in the hydrogen-storage thermoelectric oxygen triple supply device of the present invention.
In the figure: the system comprises a 1-renewable energy power generation module, a 2-electric control module, a 3-electrolytic water module, a 4-hydrogen storage module, a 5-fuel cell module, a 6-hot water tank, a 7-energy storage module, an 8-inverter, a 9-oxygen compressor, a 10-oxygen storage tank, an 11-heat supply module, a 12-heat exchanger, a 13-tap water supply pipeline, a 14-hot water conveying pipeline, a 15-water circulation pipeline and a 16-heat exchange pump.
Detailed Description
Example 1
As shown in fig. 1, the hydrogen energy storage thermoelectric oxygen triple co-generation device comprises a renewable energy power generation module 1, an electric control module 2, an electrolyzed water module 3, an energy storage module 7, a hydrogen storage module 4, an oxygen compressor 9, an oxygen storage tank 10 and a fuel cell module 5. The renewable energy power generation module 1 is connected with the electric control module 2, and the electric control module 2 is respectively connected with the water electrolysis module 3 and the energy storage module 7. The electrolyzed water module 3 is connected with an oxygen compressor 9, and the oxygen compressor 9 is connected with an oxygen storage tank 10. The electrolyzed water module 3 is also connected with a hydrogen storage module 4, the hydrogen storage module 4 is connected with a fuel cell module 5, and the fuel cell module 5 is also connected with an energy storage module 7. The energy storage module 7 is connected to an inverter 8.
The hydrogen energy storage thermoelectric oxygen triple supply device combines the electrolyzed water module 3 with the fuel cell module 5 and the like, and uses hydrogen as an energy storage medium, so that the high-efficiency storage and utilization of electric power can be realized.
The renewable energy power generation module 1 adopts a photovoltaic power generation device and/or a wind power generation device. The photovoltaic power generation device and/or the wind power generation device convert solar energy/wind energy into electric energy, the electric control module 2 is connected with the photovoltaic power generation device and/or the wind power generation device, the electric control module 2 rectifies and transforms the generated electricity and then transmits the electricity to the water electrolysis module 3 to electrolyze water to produce hydrogen, and meanwhile, part of energy is stored in the energy storage module 7 to be used for supplying power in real time.
The above-mentioned electrolytic water module 3 can further convert electric energy generated by photovoltaic or wind energy into hydrogen gas, and store the hydrogen gas in the hydrogen storage module 4. The front end of the hydrogen storage module 4 is connected with the electrolyzed water module 3, the rear end is connected with the fuel cell module 5, and hydrogen produced by the electrolyzed water module 3 is stored in the operation stage of the renewable energy power generation module 1 and can be supplied into the fuel cell module 5 for power generation when necessary. The hydrogen stored in the hydrogen storage module 4 is used for generating electricity, such as during night or overcast weather, and the generated electricity enters the energy storage module 7.
The front end of an oxygen compressor 9 of the oxygen storage and supply module is connected with the electrolytic water module 3, and the rear end is connected with an oxygen storage tank 10 for outputting oxygen outwards.
The energy storage module 7 outputs 220v 50hz ac power to the outside through the inverter 8 by receiving the electric power from the renewable energy power generation module 1 and the fuel cell module 5. Specifically, the inverter may convert direct current generated by the renewable energy power generation module 1 and the fuel cell module 5 into alternating current, and transmit the alternating current to the outside of the apparatus through a power transmission line.
The hydrogen energy storage thermoelectric oxygen triple supply device further comprises a hot water tank 6, the fuel cell module 5 is connected with the hot water tank 6 through a hot water recovery pipeline, and the hot water tank 6 is connected with the electrolytic water module 3 through a hot water circulation pipeline. The hydrogen is used as an energy storage medium, and meanwhile, heat generated in the operation process of the fuel cell module 5 can be recovered, the heat is transferred into tap water, and the tap water can be heated to 70 ℃ through measurement and calculation, so that hot water is output to the outside of the device, and the thermoelectric oxygen triple supply is realized.
Example 2
On the basis of the structure of the embodiment 1, the hydrogen energy storage thermoelectric oxygen triple supply device further comprises a heat supply module 11 for heat exchange and temperature rise of tap water, and as shown in fig. 2, the heat supply module 11 is connected with the fuel cell module 5 and the electrolyzed water module 3.
As shown in fig. 3, the heat supply module 11 includes a heat exchanger 12, a tube side inlet of the heat exchanger 12 is connected to a tap water supply pipeline 13, and a tube side outlet of the heat exchanger 12 is connected to the hot water tank 6 through a hot water delivery pipeline 14. A water circulation pipeline 15 is also arranged between the fuel cell module 5 and the electrolyzed water module 3, the shell side of the heat exchanger 12 is connected in series on the water circulation pipeline 15, and a heat exchange pump 16 is also arranged on the water circulation pipeline. The heat exchange pump 16 is used to drive the circulation of a heat exchange medium in the heat exchange tubes.
Specifically, the flow rate of the heat exchange pump 16 is related to the operating power of the fuel cell module 5 and the electrolyzed water module 3, and the operating parameter flow rate C is c=57×a during the daytime, where a is the volume number of the hydrogen gas produced by the electrolyzed water module 3 under the standard condition, and is expressed in Nm 3 And/h. The flow rate C at night, where b is the number of power generated by the fuel cell module 5 in kW, is c=28b.
The heat generated by the water electrolysis module 3 during the daytime is used for insulating the fuel cell module 5 and outputting the heat outwards, and the heat generated by the fuel cell module 5 during the nighttime is used for insulating the water electrolysis module 3 and outputting the heat outwards.
The working process of the hydrogen energy storage thermoelectric oxygen triple supply device is as follows:
in the morning of the day, the photovoltaic power generation is detected to generate electricity, the photovoltaic is switched in to charge the energy storage module 7, and meanwhile the fuel cell module 5 is turned off, and the photovoltaic is used for direct power supply. At this time, the preheating program of the electrolytic water module 3 is started, and under the condition of heat preservation, the whole electrolytic water module 3 can be started quickly. And when the continuous output power of the photovoltaic panel is higher than the running power of the water electrolysis module, starting the water electrolysis module. And then, the residual electricity supplied by the photovoltaic system is used for carrying out the water electrolysis hydrogen production process, hydrogen enters the hydrogen storage module 4, and oxygen enters the oxygen storage tank 10 through the oxygen compressor 9.
In the evening, the illumination is reduced, and when the continuous output power of the photovoltaic panel is lower than the running power of the electrolyzed water, the electrolyzed water module 3 enters a shutdown procedure. And then the fuel cell module 5 starts a preheating program, after the fuel cell module is started, hydrogen in the hydrogen storage module enters the fuel cell module to generate power, at the moment, cooling liquid of the fuel cell module is firstly used for preserving heat of the electrolytic water module, and then the temperature is reduced to 60 ℃ to enter the fuel cell module again for cooling.
Example 3
On the basis of the structure of embodiment 2, the following more specific arrangement is also made:
the electrolytic water module 3 comprises an electrolytic tank, a hydrogen outlet of the electrolytic tank is connected with a hydrogen storage module through a hydrogen conveying pipeline, and a gas purifying device is arranged on the hydrogen conveying pipeline. The hydrogen is deoxidized and dehydrated by a gas purifying device, and impurities in the hydrogen are removed, so that the hydrogen with the purity of 99.999 percent can be obtained. The purified hydrogen enters a metal hydrogen storage module for storage. The oxygen outlet of the electrolyzer is connected to an oxygen compressor 9 and the oxygen produced can be stored in an oxygen storage tank 10 for supplying oxygen to the outside when required.
The above-mentioned electrolytic cell adopts alkaline electrolytic cell or proton exchange membrane electrolytic cell.
The hydrogen storage module 4 is a metal hydrogen storage module, and the adopted metal hydrogen storage medium is titanium-manganese binary alloy or magnesium-based alloy. When the metal hydrogen storage medium adopts the titanium-manganese binary alloy, the operating pressure is 1.5MPa. When magnesium-based alloy is adopted, the hydrogenation pressure is 4.5MPa.
The energy storage module 7 adopts a lithium battery energy storage module.
The fuel cell module 5 is a proton exchange membrane fuel cell, and may be one of an alkaline fuel cell, a solid oxide fuel cell, and a phosphoric acid fuel cell.
The hydrogen energy storage thermoelectric oxygen triple supply device can be further combined with a lithium bromide air conditioner to realize external cold supply, so that the energy efficiency of the device is maximized.
The invention can be used in areas with renewable energy power generation conditions.
The invention generates electric energy through the renewable energy power generation module 1, and supplies energy to the electrolyzed water module 3 and the energy storage module 7 through the electric control module 2. Hydrogen is stored in the hydrogen storage module 4, and during a period when the renewable energy power generation condition is not provided, the hydrogen in the hydrogen storage module 4 enters the fuel cell module 5 to react with air to generate power to supply energy to the energy storage module 7. The energy of the energy storage module 7 is supplied to the outside via an inverter 8. The hot water generated by the fuel cell module 5 is recovered to the hot water tank 6 and enters the electrolyzed water module 3 for recycling.
The renewable energy power generation device comprises a photovoltaic power generation system and a wind power generation system, wherein the photovoltaic power generation system converts light energy of solar energy into electric energy, and the wind power generation system converts wind energy into electric energy.
Example 4
The invention also provides a working method of the hydrogen energy storage thermoelectric oxygen triple supply device, which comprises the following steps:
(1) The renewable energy power generation module 1 converts solar energy or wind energy into electric energy, and the electric energy is stored in the energy storage module 7 through the electric control module 2. The electric control module 2 also provides electric energy for the water electrolysis module 3, and hydrogen generated by the water electrolysis module 3 is stored in the hydrogen storage module 4. Oxygen generated by the electrolyzed water module 3 enters an oxygen storage tank 10 through an oxygen compressor 9.
(2) When the power generation condition of the renewable energy power generation module 1 is not satisfied, the hydrogen in the hydrogen storage module 4 is controlled to enter the fuel cell module 5, and the hydrogen reacts with air in the fuel cell module 5, and the generated electric energy is transmitted to the energy storage module 7.
(3) The hot water generated by the fuel cell module 5 in the reaction power generation process circulates to the electrolyzed water module 3, and in the circulation process, the hot water passes through the heat supply module 11 to exchange heat with tap water, the tap water is heated, and the tap water after the temperature is raised is conveyed to the hot water tank 6.
The parts not described in the above modes can be realized by adopting or referring to the prior art.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a hydrogen energy storage thermoelectric oxygen trigeminy supplies device which characterized in that: the device comprises a renewable energy power generation module, an electric control module, an electrolysis water module, an oxygen storage and supply module, an energy storage module, a hydrogen storage module and a fuel cell module;
the renewable energy source power generation module is connected with the electric control module, and the electric control module is respectively connected with the water electrolysis module and the energy storage module;
the electrolytic water module is respectively connected with the hydrogen storage module and the oxygen storage and supply module, and the hydrogen storage module is connected with the fuel cell module;
the fuel cell module is also connected with the energy storage module;
the energy storage module is connected with the inverter.
2. The hydrogen-storage thermoelectric oxygen triple co-generation device according to claim 1, wherein: the hydrogen energy storage thermoelectric oxygen triple supply device further comprises a hot water tank, the fuel cell module is connected with the hot water tank through a hot water recovery pipeline, and the hot water tank is connected with the electrolysis water module through a hot water circulation pipeline.
3. The hydrogen-storage thermoelectric oxygen triple co-generation device according to claim 2, wherein: the hydrogen energy storage thermoelectric oxygen triple supply device also comprises a heat supply module for heat exchange and temperature rise of tap water, and the heat supply module is connected with the fuel cell module and the electrolyzed water module.
4. A hydrogen storage thermoelectric oxygen triple co-generation device according to claim 3, wherein: the heat supply module comprises a heat exchanger, a tube side inlet of the heat exchanger is connected with a tap water supply pipeline, and a tube side outlet of the heat exchanger is connected with a hot water tank through a hot water conveying pipeline;
a water circulation pipeline is arranged between the fuel cell module and the electrolyzed water module, the shell side of the heat exchanger is connected in series on the water circulation pipeline, and a heat exchange pump is also arranged on the water circulation pipeline.
5. The hydrogen-storage thermoelectric oxygen triple co-generation device according to claim 1, wherein: the renewable energy power generation module adopts a photovoltaic power generation device and/or a wind power generation device.
6. The hydrogen-storage thermoelectric oxygen triple co-generation device according to claim 1, wherein: the water electrolysis module comprises an electrolysis tank, a hydrogen outlet of the electrolysis tank is connected with the hydrogen storage module through a hydrogen conveying pipeline, and a gas purifying device is arranged on the hydrogen conveying pipeline.
7. The hydrogen-storage thermoelectric oxygen triple co-generation device according to claim 6, wherein: the electrolytic tank adopts an alkaline electrolytic tank or a proton exchange membrane electrolytic tank.
8. The hydrogen-storage thermoelectric oxygen triple co-generation device according to claim 6, wherein: the oxygen outlet of the electrolytic tank is connected with an oxygen storage and supply module; the oxygen storage and supply module comprises an oxygen storage tank, an oxygen outlet of the electrolytic tank is connected with the oxygen storage tank through an oxygen conveying pipeline, and an oxygen compressor is arranged on the oxygen conveying pipeline.
9. The hydrogen-storage thermoelectric oxygen triple co-generation device according to claim 1, wherein: the hydrogen storage module is a metal hydrogen storage module, and the adopted metal hydrogen storage medium is titanium-manganese binary alloy or magnesium-based alloy.
10. A method of operating a hydrogen storage thermoelectric oxygen triple co-generation device as claimed in any one of claims 1 to 9 comprising the steps of:
(1) The renewable energy source power generation module is used for converting solar energy or wind energy into electric energy, and the electric energy is stored in the energy storage module through the electric control module; the electric control module also provides electric energy for the water electrolysis module, hydrogen generated by the water electrolysis module is stored in the hydrogen storage module, and oxygen generated by the water electrolysis module is stored in the oxygen storage and supply module;
(2) When the power generation condition of the renewable energy power generation module is not met, controlling hydrogen in the hydrogen storage module to enter the fuel cell module, enabling the hydrogen to react with air in the fuel cell module, and transmitting generated electric energy to the energy storage module;
(3) The fuel cell module circulates hot water generated in the reaction power generation process to the electrolysis water module, and exchanges heat with tap water in the circulation process through the heat supply module to heat the tap water, and the heated tap water is conveyed into the hot water tank.
CN202311402585.5A 2023-10-26 2023-10-26 Hydrogen energy storage thermoelectric oxygen triple supply device and working method thereof Pending CN117674250A (en)

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