CN116752166A - Floating type offshore hydrogen production system - Google Patents

Floating type offshore hydrogen production system Download PDF

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Publication number
CN116752166A
CN116752166A CN202310531311.XA CN202310531311A CN116752166A CN 116752166 A CN116752166 A CN 116752166A CN 202310531311 A CN202310531311 A CN 202310531311A CN 116752166 A CN116752166 A CN 116752166A
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China
Prior art keywords
hydrogen
hydrogen production
pressure
electrolytic
floating
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Pending
Application number
CN202310531311.XA
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Chinese (zh)
Inventor
谢佳家
翟云楚
张志亮
童晓凡
高阳
郭凯凯
金丽艳
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China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co ltd
Innovation And Entrepreneurship Center Of State Grid Zhejiang Electric Power Co ltd
Original Assignee
China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co ltd
Innovation And Entrepreneurship Center Of State Grid Zhejiang Electric Power Co ltd
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Application filed by China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co ltd, Innovation And Entrepreneurship Center Of State Grid Zhejiang Electric Power Co ltd filed Critical China Energy Engineering Group Zhejiang Eleteric Power Design Institute Co ltd
Priority to CN202310531311.XA priority Critical patent/CN116752166A/en
Publication of CN116752166A publication Critical patent/CN116752166A/en
Pending legal-status Critical Current

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    • 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
    • F17C5/00—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures
    • F17C5/06—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with compressed gases
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • 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
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • 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
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B15/085—Removing impurities
    • 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
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • 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
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/19—Combinations of wind motors with apparatus storing energy storing chemical energy, e.g. using electrolysis
    • 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
    • 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
    • F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
    • 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
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • 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
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0118—Offshore
    • F17C2270/0121—Platforms
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/133—Renewable energy sources, e.g. sunlight

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention discloses a floating type offshore hydrogen production system, which comprises a floating type hydrogen production platform, a sea water desalination device, an electrolytic hydrogen production device, a hydrogen compression device and a high-pressure hydrogen storage tank, wherein the sea water desalination device, the electrolytic hydrogen production device, the hydrogen compression device and the high-pressure hydrogen storage tank are arranged on the floating type hydrogen production platform; the seawater desalination device converts seawater into fresh water meeting the hydrogen production requirement, and the fresh water is conveyed to the electrolytic hydrogen production device through a pure water pipeline; the electrolytic hydrogen production device absorbs peripheral wind power and photovoltaic power to electrolyze fresh water to generate hydrogen, and the hydrogen is conveyed to the hydrogen compression device through a hydrogen pipeline; the hydrogen compression device compresses low-pressure hydrogen into compressed hydrogen with preset pressure, and transmits the compressed hydrogen to the high-pressure hydrogen storage tank for storage through a high-pressure hydrogen pipeline. Provided is a hydrogen production system which is efficient and stable and which can reduce impact on a power grid.

Description

Floating type offshore hydrogen production system
Technical Field
The invention relates to the technical field of energy, in particular to a floating offshore hydrogen production system.
Background
The hydrogen energy is a secondary energy source which is wide in source, clean, free of carbon and rich in application scene, is an ideal interconnection medium for promoting the clean and efficient utilization of traditional fossil energy and supporting the large-scale development of renewable energy, is an optimal choice for realizing large-scale decarburization in the fields of transportation, steel, chemical industry, electric power, building and the like, and is also the core of energy architecture in the future world. The hydrogen energy gradually becomes one of important carriers for global energy transformation development, has high energy density and long-time storage, and is an important component for developing high-efficiency clean energy and constructing a low-carbon high-efficiency energy system. The hydrogen production technology is taken as a novel energy storage mode, is an effective means for relieving the problem of wind and light abandoning, has abundant wind resources and water resources in coastal areas, utilizes renewable energy sources at sea to produce hydrogen, can fully utilize the resources and relieves the problem of energy shortage.
However, the existing offshore hydrogen production system has the problems of large stable impact on a power grid, poor economy and low hydrogen production efficiency.
Disclosure of Invention
In order to solve the technical problems, the invention provides a floating offshore hydrogen production system, and provides a high-efficiency and stable hydrogen production system which can reduce impact on a power grid.
The embodiment of the invention provides a floating type offshore hydrogen production system, which comprises a floating type hydrogen production platform, a sea water desalination device, an electrolytic hydrogen production device, a hydrogen compression device and a high-pressure hydrogen storage tank, wherein the sea water desalination device, the electrolytic hydrogen production device, the hydrogen compression device and the high-pressure hydrogen storage tank are arranged on the floating type hydrogen production platform;
the seawater desalination device converts seawater into fresh water meeting the hydrogen production requirement, and the fresh water is conveyed to the electrolytic hydrogen production device through a pure water pipeline; the electrolytic hydrogen production device absorbs peripheral wind power and photovoltaic power to electrolyze fresh water to generate hydrogen, and the hydrogen is conveyed to the hydrogen compression device through a hydrogen pipeline; the hydrogen compression device compresses low-pressure hydrogen into compressed hydrogen with preset pressure, and transmits the compressed hydrogen to the high-pressure hydrogen storage tank for storage through a high-pressure hydrogen pipeline.
Preferably, the system further comprises a hydrogen production cooling device arranged on the floating hydrogen production platform;
the hydrogen production cooling device adopts seawater to cool the electrolytic hydrogen production device.
As a preferred scheme, the system further comprises a hydrogen purification device arranged on the floating hydrogen production platform;
the hydrogen purification device is used for receiving the hydrogen generated by the electrolytic hydrogen production device, purifying the hydrogen, and conveying the purified hydrogen to the hydrogen compression device through a purified hydrogen pipeline.
Preferably, the high pressure hydrogen storage tank is arranged on a separate floating platform and is connected with the high pressure hydrogen pipeline through a quick connector.
As a preferable scheme, the sea water desalting device adopts an RO reverse osmosis device.
Preferably, the electrolytic hydrogen production device is formed by connecting a plurality of proton membrane electrolytic hydrogen production devices in parallel.
Preferably, the hydrogen compression device specifically adopts a diaphragm type compression device to compress hydrogen to 20-45 MPa.
The invention provides a floating type offshore hydrogen production system, which comprises a floating type hydrogen production platform, a seawater desalination device, an electrolytic hydrogen production device, a hydrogen compression device and a high-pressure hydrogen storage tank, wherein the seawater desalination device, the electrolytic hydrogen production device, the hydrogen compression device and the high-pressure hydrogen storage tank are arranged on the floating type hydrogen production platform; the seawater desalination device converts seawater into fresh water meeting the hydrogen production requirement, and the fresh water is conveyed to the electrolytic hydrogen production device through a pure water pipeline; the electrolytic hydrogen production device absorbs peripheral wind power and photovoltaic power to electrolyze fresh water to generate hydrogen, and the hydrogen is conveyed to the hydrogen compression device through a hydrogen pipeline; the hydrogen compression device compresses low-pressure hydrogen into compressed hydrogen with preset pressure, and transmits the compressed hydrogen to the high-pressure hydrogen storage tank for storage through a high-pressure hydrogen pipeline. Provided is a hydrogen production system which is efficient and stable and which can reduce impact on a power grid.
Drawings
FIG. 1 is a schematic diagram of a floating offshore hydrogen production system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a floating offshore hydrogen production system according to another embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment of the invention provides a floating type offshore hydrogen production system, which comprises a floating type hydrogen production platform, a sea water desalination device, an electrolytic hydrogen production device, a hydrogen production cooling device, a hydrogen compression device and a high-pressure hydrogen storage tank, wherein the sea water desalination device, the electrolytic hydrogen production device, the hydrogen production cooling device, the hydrogen compression device and the high-pressure hydrogen storage tank are arranged on the floating type hydrogen production platform;
the seawater desalination device converts seawater into fresh water meeting the hydrogen production requirement, and the fresh water is conveyed to the electrolytic hydrogen production device through a pure water pipeline; the electrolytic hydrogen production device absorbs peripheral wind power and photovoltaic power to electrolyze fresh water to generate hydrogen, and the hydrogen is conveyed to the hydrogen compression device through a hydrogen pipeline; the hydrogen compression device compresses low-pressure hydrogen into compressed hydrogen with preset pressure, and transmits the compressed hydrogen to the high-pressure hydrogen storage tank for storage through a high-pressure hydrogen pipeline.
In the implementation of this embodiment, referring to fig. 1, a schematic structural diagram of a floating offshore hydrogen production system according to an embodiment of the present invention is shown;
the system comprises a sea water desalination device 1, an electrolytic hydrogen production device 2, a hydrogen compression device 5 and a high-pressure hydrogen storage tank 6;
the seawater desalination device 1, the electrolytic hydrogen production device 2, the hydrogen compression device 5 and the high-pressure hydrogen storage tank 6 are all arranged on the floating hydrogen production platform;
the seawater desalination device 1 is connected with the electrolytic hydrogen production device 2 through a pure water pipeline 7, the electrolytic hydrogen production device 2 is connected with the hydrogen compression device 5 through a hydrogen pipeline 9, and the hydrogen compression device 5 is connected with the high-pressure hydrogen storage tank 6 through a high-pressure hydrogen pipeline 11.
The seawater desalination device 1 can convert seawater into fresh water, can meet the water quality requirement required by hydrogen production, and conveys the converted fresh water to the electrolytic hydrogen production device 2 through the pure water pipeline 7;
the electrolytic hydrogen production device 2 can electrolyze fresh water to generate hydrogen by utilizing electricity generated by peripheral wind power and photovoltaic, and the generated hydrogen is conveyed to the hydrogen compression device 5 through the hydrogen pipeline 9;
the hydrogen compression device 5 can compress the low-pressure hydrogen after the hydrogen purification device into compressed hydrogen with preset pressure, and the compressed hydrogen is conveyed to the high-pressure hydrogen storage tank 6 through the high-pressure hydrogen pipeline 11;
the high-pressure hydrogen tank 6 is capable of storing electrolytically produced hydrogen at high pressure.
All devices of the system are placed on a floating platform, the platform is preferably close to an offshore wind power or photovoltaic power station, power required by electrolysis hydrogen production is transmitted to the hydrogen production platform through a cable, the hydrogen production device can quickly respond according to the power generated by the power station, and the system can solve the problems of large stable impact on a power grid, poor economy and low hydrogen production efficiency of the offshore hydrogen production system. The method has the advantages that the wind power and photovoltaic power are consumed at sea, electric energy is converted into hydrogen energy to be stored and utilized, the impact of electric energy consumption on the stability of a power grid is reduced, the rapid development of a green hydrogen industry chain is promoted, and the problems of difficult remote power transmission and high investment cost of synchronous offshore wind power and photovoltaic power generation are solved.
In yet another embodiment provided by the present invention, the system further comprises a hydrogen production cooling device disposed on the floating hydrogen production platform;
the hydrogen production cooling device adopts seawater to cool the electrolytic hydrogen production device.
In the implementation of this embodiment, referring to fig. 2, a schematic structural diagram of a floating offshore hydrogen production system according to another embodiment of the present invention is shown;
the system also comprises a hydrogen production cooling device 3 arranged on the floating hydrogen production platform.
The hydrogen production cooling device 3 is connected with the electrolytic hydrogen production device 2 through a cooling water pipeline 8, and the hydrogen production cooling device 3 takes away heat generated in the hydrogen production process of the electrolytic hydrogen production device 2 through the cooling water pipeline 8. The cooling water quantity can be automatically adjusted according to the hydrogen production power of the electrolytic hydrogen production device so as to ensure that the electrolytic hydrogen production device can produce hydrogen at the optimal operating temperature.
In yet another embodiment provided by the present invention, the system further comprises a hydrogen purification device disposed on the floating hydrogen production platform;
the hydrogen purification device is used for receiving the hydrogen generated by the electrolytic hydrogen production device, purifying the hydrogen, and conveying the purified hydrogen to the hydrogen compression device through a purified hydrogen pipeline.
In the implementation of this embodiment, referring to fig. 2, the system further includes a hydrogen purification device 4 disposed on the floating hydrogen production platform;
the electrolytic hydrogen production device 2 is connected with the hydrogen purification device 4 through a hydrogen pipeline 9, and the hydrogen purification device 4 is connected with the hydrogen compression device 5 through a purified hydrogen pipeline 10;
the hydrogen purification device 4 improves the purity of the hydrogen generated by the electrolytic hydrogen production device to 99.999%, and the purified hydrogen enters the hydrogen compression device 5 through the purified hydrogen pipeline 10, so that the impurity of the water doped in the hydrogen is reduced, and the subsequent compression and use are facilitated.
In yet another embodiment provided by the present invention, the high pressure hydrogen storage tank is configured on a separate floating platform and is connected to the high pressure hydrogen pipeline by a quick connector.
In the implementation of this embodiment, referring to fig. 2, the high-pressure hydrogen storage tank 6 is configured on an independent floating platform and is connected to the high-pressure hydrogen pipeline 11 through the quick connector 12, and the hydrogen storage mode of the high-pressure hydrogen storage tank 6 adopts high-pressure gas hydrogen storage, so that the high-pressure gas hydrogen storage tank can be directly applied to hydrogen supplementation of a hydrogenation station;
after the hydrogen filling is completed, the whole high-pressure hydrogen storage tank platform can be towed to a land port through a ship, so that the carrying and secondary filling work of the storage tank are reduced.
In yet another embodiment provided by the present invention, the seawater desalination plant employs an RO reverse osmosis plant.
In the implementation of this embodiment, the seawater desalination device 1 adopts an RO reverse osmosis device to directly desalinate seawater into pure water required for hydrogen production.
In yet another embodiment provided by the invention, the electrolytic hydrogen production device is formed by connecting a plurality of proton membrane electrolytic hydrogen production devices in parallel.
In the present practiceWhen the embodiment is implemented, the electrolytic hydrogen production device 2 adopts a proton membrane electrolytic hydrogen production device to reduce the size and the load of the offshore floating platform, and the single hydrogen production scale is 200-1000 Nm 3 And/h, hydrogen can be prepared by a mode of connecting a plurality of hydrogen preparing devices in parallel according to the total hydrogen preparing scale.
In still another embodiment of the present invention, the hydrogen compression device specifically adopts a diaphragm type compression device, and compresses the hydrogen to 20 to 45MPa.
In the embodiment, the hydrogen compression device 5 adopts a diaphragm type compression device to compress the hydrogen pressure to 20-45 Mpa;
the hydrogen compression device at least needs to compress hydrogen to 20Mpa, so that the hydrogen is convenient to store; but not exceeding 45Mpa, too high pressure, possibly exceeding the safety limits of the high pressure hydrogen storage tank. Hydrogen is typically compressed to 30Mpa by default.
The hydrogen storage pressure in the high-pressure hydrogen storage tank is correspondingly set to be 20-45 MPa, the hydrogen storage pressure can be adjusted according to the hydrogen pressure required by a user side, and the pressure of the compressed high-pressure hydrogen of the hydrogen compression device can be synchronously adjusted.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.

Claims (7)

1. The floating type offshore hydrogen production system is characterized by comprising a floating type hydrogen production platform, a seawater desalination device, an electrolytic hydrogen production device, a hydrogen compression device and a high-pressure hydrogen storage tank, wherein the seawater desalination device, the electrolytic hydrogen production device, the hydrogen compression device and the high-pressure hydrogen storage tank are arranged on the floating type hydrogen production platform;
the seawater desalination device converts seawater into fresh water meeting the hydrogen production requirement, and the fresh water is conveyed to the electrolytic hydrogen production device through a pure water pipeline; the electrolytic hydrogen production device absorbs peripheral wind power and photovoltaic power to electrolyze fresh water to generate hydrogen, and the hydrogen is conveyed to the hydrogen compression device through a hydrogen pipeline; the hydrogen compression device compresses low-pressure hydrogen into compressed hydrogen with preset pressure, and transmits the compressed hydrogen to the high-pressure hydrogen storage tank for storage through a high-pressure hydrogen pipeline.
2. The floating offshore hydrogen production system of claim 1 further comprising a hydrogen production cooling device disposed on the floating hydrogen production platform;
the hydrogen production cooling device adopts seawater to cool the electrolytic hydrogen production device.
3. A floating offshore hydrogen production system as in claim 1 further comprising a hydrogen purification device disposed on said floating hydrogen production platform;
the hydrogen purification device is used for receiving the hydrogen generated by the electrolytic hydrogen production device, purifying the hydrogen, and conveying the purified hydrogen to the hydrogen compression device through a purified hydrogen pipeline.
4. A floating offshore hydrogen production system as in claim 1 wherein said high pressure hydrogen storage tank is disposed on a separate floating platform and is connected to said high pressure hydrogen pipeline by a quick connector.
5. A floating offshore hydrogen production system as claimed in claim 1 wherein said sea water desalination plant employs an RO reverse osmosis plant.
6. A floating offshore hydrogen production system as in claim 1 wherein said electrolytic hydrogen production unit is comprised of a plurality of proton membrane electrolytic hydrogen production units in parallel.
7. The floating offshore hydrogen production system of claim 1 wherein the hydrogen compression device is a diaphragm type compression device to compress hydrogen to 20-45 MPa.
CN202310531311.XA 2023-05-08 2023-05-08 Floating type offshore hydrogen production system Pending CN116752166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310531311.XA CN116752166A (en) 2023-05-08 2023-05-08 Floating type offshore hydrogen production system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310531311.XA CN116752166A (en) 2023-05-08 2023-05-08 Floating type offshore hydrogen production system

Publications (1)

Publication Number Publication Date
CN116752166A true CN116752166A (en) 2023-09-15

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