CN115602882A - System and method for integrated production-storage-use hydrogen energy storage based on electricity-hydrogen-gas conversion - Google Patents

System and method for integrated production-storage-use hydrogen energy storage based on electricity-hydrogen-gas conversion Download PDF

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Publication number
CN115602882A
CN115602882A CN202211128268.4A CN202211128268A CN115602882A CN 115602882 A CN115602882 A CN 115602882A CN 202211128268 A CN202211128268 A CN 202211128268A CN 115602882 A CN115602882 A CN 115602882A
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hydrogen
storage
fuel cell
electricity
heat
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CN202211128268.4A
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Chinese (zh)
Inventor
曹权
王洪建
郑娜
吴�荣
孙明烨
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BEIJING GAS AND HEATING ENGINEERING DESIGN INSTITUTE
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BEIJING GAS AND HEATING ENGINEERING DESIGN INSTITUTE
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Priority to CN202211128268.4A priority Critical patent/CN115602882A/en
Publication of CN115602882A publication Critical patent/CN115602882A/en
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    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04111—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants using a compressor turbine assembly
    • 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
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • 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
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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)
  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel Cell (AREA)

Abstract

The invention belongs to the technical field of compressed hydrogen energy storage, and particularly relates to a hydrogen energy storage system and method integrating production, storage and use based on electricity-hydrogen-gas conversion. The system comprises: the hydrogen production device is an electrolytic tank; the hydrogen fuel cell is connected with the hydrogen production device; the compression device is connected with the hydrogen production device; the hydrogen storage device is connected with the compression device; the heat storage device is respectively connected with the hydrogen production device, the hydrogen fuel cell and the compression device; the expansion device is respectively connected with the heat storage device, the hydrogen storage device and the generator; the expansion device is connected with the hydrogen fuel cell; the power grid is respectively connected with the hydrogen fuel cell, the generator and the hydrogen production device; and the low-temperature storage tank is used for storing cold water generated by heat exchange with the compression device and the expansion device. The system realizes the integration of electricity-hydrogen-gas conversion and preparation-storage-use, and fully utilizes resources.

Description

System and method for integrated production-storage-use hydrogen energy storage based on electricity-hydrogen-gas conversion
Technical Field
The application relates to the technical field of compressed hydrogen energy storage, in particular to a hydrogen energy storage system and method integrating production, storage and use based on electricity-hydrogen-gas conversion.
Background
The description of the background of the invention pertaining to the related art to which this invention pertains is given for the purpose of illustration and understanding only of the summary of the invention and is not to be construed as an admission that the applicant is explicitly or implicitly admitted to be prior art to the date of filing this application as first filed with this invention.
Hydrogen energy is a secondary energy source with rich sources, green, low carbon and wide application, and is gradually becoming one of important carriers for transformation and development of global energy. The hydrogen energy storage is a novel energy storage, can improve the renewable energy consumption ability, and possesses the ability of long term energy storage of crossing season, crossing region, can play an important role in novel power system construction.
However, the current hydrogen energy storage is utilized only singly, and the waste of resources is caused.
Disclosure of Invention
The embodiment of the invention aims to provide a hydrogen energy storage system and a method integrating production, storage and use based on electricity-hydrogen-gas conversion.
A system-storage-use integrated hydrogen energy storage system based on electricity-hydrogen-gas conversion, comprising:
the hydrogen production device is an electrolytic bath which outputs hydrogen, oxygen and first heat through water electrolysis;
the hydrogen fuel cell is connected with the hydrogen production device, the hydrogen production device provides oxygen for the hydrogen fuel cell, and water generated by the hydrogen fuel cell is conveyed to the hydrogen production device;
the compression device is connected with the hydrogen production device and compresses the hydrogen produced by the hydrogen production device;
the hydrogen storage device is connected with the compression device and is used for storing the hydrogen compressed by the compression device;
the heat storage device is respectively connected with the hydrogen production device, the hydrogen fuel cell and the compression device and is used for storing first heat generated by the hydrogen production device, second heat generated by the hydrogen fuel cell and third heat generated by the compression device;
the expansion device is respectively connected with the heat storage device, the hydrogen storage device and the generator, and provides energy to heat the hydrogen conveyed from the hydrogen storage device through the heat storage device so as to heat and provide power for the generator; the expansion device is connected with the hydrogen fuel cell and provides hydrogen for the hydrogen fuel cell;
the power grid is respectively connected with the hydrogen fuel cell, the generator and the hydrogen production device and is used for receiving the electric energy generated by the hydrogen fuel cell and the generator and providing the electric energy for the hydrogen production device;
and the low-temperature storage tank is used for storing cold water generated by heat exchange with the compression device and the expansion device.
Furthermore, the power grid is connected with a renewable energy power generation device.
Furthermore, the motor of the compression device is powered by a power grid.
Furthermore, a compressor adopted by the compression device adopts 3 stages of compression, a heat exchanger is arranged between stages, and water is used as a heat exchange medium.
Furthermore, the expansion device adopts an expansion machine which is a 3-stage turbine, a reheater is arranged between the expansion machines, and water is used as a heat exchange medium.
Furthermore, the system also comprises a natural gas pipe network, wherein the natural gas pipe network is connected with the expansion device and used for receiving hydrogen.
The hydrogen energy storage method based on the integration of electricity-hydrogen-gas conversion, preparation and storage is completed by adopting the system.
The embodiment of the invention has the following beneficial effects:
the surplus renewable energy power in the valley period is utilized to electrolyze water to produce hydrogen, and the hydrogen is compressed and stored. During the peak period of power utilization, the stored high-pressure hydrogen pushes the generator to work to generate power and the power is merged into a power grid.
The hydrogen at the outlet of the expander can be used with a hydrogen fuel cell to generate electricity. During the peak period of electricity utilization, the hydrogen fuel cell device can use the oxygen and hydrogen generated by the hydrogen production device to burn for generating electricity, and the electricity is merged into a power grid, and the water generated by burning can be input into the hydrogen production device again for electrolyzing water to produce hydrogen. In addition, the hydrogen can be directly mixed into a natural gas pipeline network for natural gas pipeline hydrogen mixing transportation and terminal utilization.
The system realizes the integration of electricity-hydrogen-gas conversion and preparation-storage-use, and fully utilizes resources.
Drawings
Fig. 1 is a schematic structural diagram of a system-storage-use integrated hydrogen energy storage system based on electricity-hydrogen-gas conversion according to an embodiment of the present invention.
Detailed Description
The present application is further described below with reference to examples.
In the following description, different "one embodiment" or "an embodiment" refers to different embodiments, but not necessarily the same embodiment, in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art. Various embodiments may be replaced or combined, and other embodiments may be obtained according to the embodiments without creative efforts for those skilled in the art.
With reference to fig. 1, a system-storage-use integrated hydrogen energy storage system based on electricity-hydrogen-gas conversion comprises:
the hydrogen production device 1 is an electrolytic cell, and the electrolytic cell outputs hydrogen, oxygen and first heat through electrolyzed water; the surplus electric energy in the area with rich renewable energy electric power is utilized to drive the electrolytic cell device to electrolyze water to produce hydrogen. The electrolyzer may be an alkaline electrolyzer or a PEM electrolyzer;
the hydrogen fuel cell 2 is connected with the hydrogen production device 1, the hydrogen production device 1 provides oxygen for the hydrogen fuel cell 2, and water generated by the hydrogen fuel cell 2 is conveyed to the hydrogen production device 1;
the compression device 3 is connected with the hydrogen production device 1 and compresses the hydrogen produced by the hydrogen production device 1; the electric energy of the power grid is used for driving the motor, and the motor drives the compressor to compress hydrogen. The compressor is set to 3-stage compression, the interstage is provided with a heat exchanger, water is used as a heat exchange medium, heat generated in the process of compressing hydrogen is obtained, and the heat is stored in the heat accumulator;
the hydrogen storage device 4 is connected with the compression device 3 and is used for storing the hydrogen compressed by the compression device; high-pressure gaseous hydrogen storage is adopted. And storing the high-pressure hydrogen pressurized by the compressor in a high-pressure gas storage cylinder. The gas storage system can be an underground gas storage, a metal liner fiber winding bottle, a plastic liner fiber winding bottle and a carbon fiber winding gas bottle;
the heat storage device 5 is respectively connected with the hydrogen production device 1, the hydrogen fuel cell 2 and the compression device 3, and is used for storing the first heat generated by the hydrogen production device 1, the second heat generated by the hydrogen fuel cell 2 and the third heat generated by the compression device 3;
the expansion device 6 is respectively connected with the heat storage device 5, the hydrogen storage device 4 and the generator 8, and the heat storage device 5 provides energy to heat the hydrogen conveyed from the hydrogen storage device 4 and provide power for the generator 8; the expansion device 6 is connected with the hydrogen fuel cell 2 and provides hydrogen for the hydrogen fuel cell 2; high-pressure hydrogen in the gas storage device is released, and because the temperature of the hydrogen in the hydrogen storage device is too low, hot water is used as a medium, heat in the heat reservoir is used for heating the high-pressure hydrogen entering the expansion machine, and work is done in the expansion machine to drive the generator to generate electricity. The expansion machine is a 3-stage turbine, a reheater is arranged between the expansion machines, water is used as a heat exchange medium, and cold water after heat exchange is stored in the low-temperature storage tank;
the power grid is respectively connected with the hydrogen fuel cell 2, the generator 8 and the hydrogen production device 1 and is used for receiving the electric energy generated by the hydrogen fuel cell 2 and the generator 8 and providing the electric energy for the hydrogen production device 1;
and the low-temperature storage tank 7 is used for storing cold water generated by heat exchange with the compression device 3 and the expansion device 6.
The surplus renewable energy power in the valley period is utilized to electrolyze water to produce hydrogen, and the hydrogen is compressed and stored. During the peak period of power utilization, the stored high-pressure hydrogen pushes the generator to work to generate power and the power is merged into a power grid.
The hydrogen at the outlet of the expander can be used with a hydrogen fuel cell to generate electricity. During the peak period of electricity utilization, the hydrogen fuel cell device can use the oxygen and hydrogen generated by the hydrogen production device to burn for generating electricity, and the electricity is merged into a power grid, and the water generated by burning can be input into the hydrogen production device again for electrolyzing water to produce hydrogen. In addition, hydrogen can be directly mixed into a natural gas pipeline network for natural gas pipeline hydrogen mixing transportation and terminal utilization.
Realizes the integration of electricity-hydrogen-gas conversion and preparation-storage-use, and fully utilizes resources.
In some embodiments of the invention, the grid is connected to a renewable energy power generation device 10.
In some embodiments of the invention, the electric motor 9 of the compression device 3 is supplied by the electric network.
In some embodiments of the present invention, the compressor used in the compression device 3 is 3-stage compression, and heat exchangers (an intercooler 31 and a cooler 32) are arranged between stages, and water is used as a heat exchange medium.
In some embodiments of the present invention, the expansion device 6 employs an expansion machine that is a 3-stage turbine, and a reheater 61 is disposed between the expansion machines, and water is used as a heat exchange medium.
In some embodiments of the invention, a natural gas pipeline network is further included, said natural gas pipeline network being connected to said expansion device 6 for receiving hydrogen.
The hydrogen energy storage method based on the integration of electricity-hydrogen-gas conversion, preparation and storage is completed by adopting the system.
The system has the advantages of high safety, small specific investment, large energy storage capacity, high flexibility and the like, can provide powerful support for constructing a novel power system, and will become a main energy storage mode in the future.
According to the invention, through the cooperation of electricity, hydrogen and gas, all modules can be flexibly combined, the long-period flexible regulation is realized, the full application of renewable energy sources is realized, the rated power can reach 100MW, and the system efficiency can reach more than 70%.
The invention has technical feasibility and economic feasibility of large-scale popularization and application.
It should be noted that the above embodiments can be freely combined as necessary. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A system-storage-use integrated hydrogen energy storage system based on electricity-hydrogen-gas conversion, comprising:
the hydrogen production device is an electrolytic tank, and the electrolytic tank outputs hydrogen, oxygen and first heat through electrolyzed water;
the hydrogen fuel cell is connected with the hydrogen production device, the hydrogen production device provides oxygen for the hydrogen fuel cell, and water generated by the hydrogen fuel cell is conveyed to the hydrogen production device;
the compression device is connected with the hydrogen production device and compresses the hydrogen produced by the hydrogen production device;
the hydrogen storage device is connected with the compression device and is used for storing the hydrogen compressed by the compression device;
the heat storage device is respectively connected with the hydrogen production device, the hydrogen fuel cell and the compression device and is used for storing first heat generated by the hydrogen production device, second heat generated by the hydrogen fuel cell and third heat generated by the compression device;
the expansion device is respectively connected with the heat storage device, the hydrogen storage device and the generator, and the heat storage device provides energy to heat the hydrogen conveyed from the hydrogen storage device and provide power for the generator; the expansion device is connected with the hydrogen fuel cell and provides hydrogen for the hydrogen fuel cell;
the power grid is respectively connected with the hydrogen fuel cell, the generator and the hydrogen production device and is used for receiving the electric energy generated by the hydrogen fuel cell and the generator and providing the electric energy for the hydrogen production device;
and the low-temperature storage tank is used for storing cold water generated by heat exchange with the compression device and the expansion device.
2. The integrated system for manufacturing-storing-using hydrogen energy storage based on electricity-hydrogen-gas conversion as claimed in claim 1, wherein said power grid is connected with a renewable energy power generation device.
3. The integrated system for storing hydrogen and storing energy based on electricity-hydrogen-gas conversion as claimed in claim 1, wherein the motor of the compressing device is powered by the power grid.
4. The integrated system-storage-and-use hydrogen energy storage system based on electricity-hydrogen-gas conversion according to claim 1, wherein the compressor adopted by the compression device is 3 stages of compression, a heat exchanger is arranged between the stages, and water is used as a heat exchange medium.
5. The integrated system-storage-and-use hydrogen energy storage system based on electricity-hydrogen-gas conversion as claimed in claim 1, wherein the expansion device adopts a 3-stage turbine as an expander, a reheater is arranged between the expanders, and water is used as a heat exchange medium.
6. The integrated system-storage-and-use hydrogen energy storage system based on electricity-hydrogen-gas conversion according to claim 1, further comprising a natural gas pipeline network connected to the expansion device for receiving hydrogen gas.
7. A method for storing hydrogen by using a system of any one of claims 1 to 6, wherein the method is performed by using a hydrogen storage-generation integrated system based on electricity-hydrogen-gas conversion.
CN202211128268.4A 2022-09-16 2022-09-16 System and method for integrated production-storage-use hydrogen energy storage based on electricity-hydrogen-gas conversion Pending CN115602882A (en)

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CN202211128268.4A CN115602882A (en) 2022-09-16 2022-09-16 System and method for integrated production-storage-use hydrogen energy storage based on electricity-hydrogen-gas conversion

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Application Number Priority Date Filing Date Title
CN202211128268.4A CN115602882A (en) 2022-09-16 2022-09-16 System and method for integrated production-storage-use hydrogen energy storage based on electricity-hydrogen-gas conversion

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CN115602882A true CN115602882A (en) 2023-01-13

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