CN116039854A - Large renewable energy hydrogen production liquefaction storage and transportation offshore platform - Google Patents

Large renewable energy hydrogen production liquefaction storage and transportation offshore platform Download PDF

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Publication number
CN116039854A
CN116039854A CN202211460375.7A CN202211460375A CN116039854A CN 116039854 A CN116039854 A CN 116039854A CN 202211460375 A CN202211460375 A CN 202211460375A CN 116039854 A CN116039854 A CN 116039854A
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China
Prior art keywords
hydrogen
passage
liquid
outlet
inlet
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CN202211460375.7A
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Chinese (zh)
Inventor
王朝
陈甲楠
赵亚丽
何春辉
刘庆洋
沈海涛
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Jiangsu Guofu Hydrogen Energy Technology Equipment Co Ltd
Zhangjiagang Hydrogen Cloud New Energy Research Institute Co Ltd
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Jiangsu Guofu Hydrogen Energy Technology Equipment Co Ltd
Zhangjiagang Hydrogen Cloud New Energy Research Institute Co Ltd
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Priority to CN202211460375.7A priority Critical patent/CN116039854A/en
Publication of CN116039854A publication Critical patent/CN116039854A/en
Pending legal-status Critical Current

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • 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
    • C25B15/083—Separating products
    • 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
    • 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
    • F17C5/02—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases
    • F17C5/04—Methods or apparatus for filling containers with liquefied, solidified, or compressed gases under pressures for filling with liquefied gases requiring the use of refrigeration, e.g. filling with helium or hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4486—Floating storage vessels, other than vessels for hydrocarbon production and storage, e.g. for liquid cargo
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/013—Single phase liquid
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0157—Compressors
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
    • 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

Abstract

The invention discloses a large renewable energy hydrogen production liquefaction storage and transportation offshore platform, which comprises the following components: the offshore platform is provided with a fan, a seawater purification system, an electrolytic hydrogen production system, a hydrogen fuel cell, a hydrogen purification device, a liquefaction system, a liquid hydrogen transfer device, a liquid oxygen transfer device, a liquid hydrogen tank set, a liquid oxygen tank set, a vaporization heater, a control center, a hydrogen buffer tank and a gas hydrogen compressor. The large renewable energy source hydrogen production liquefaction storage offshore platform can utilize wind energy to produce hydrogen, and can liquefy the produced hydrogen, and the liquid hydrogen energy is stored in a liquid hydrogen tank set, so that ocean transportation of the liquid hydrogen can be facilitated, and the problem of low energy transportation efficiency in deep sea transportation is solved; the byproduct oxygen can be liquefied by utilizing the cold energy in the hydrogen liquefaction process, so that liquid oxygen is obtained, and the economic benefit can be greatly increased.

Description

Large renewable energy hydrogen production liquefaction storage and transportation offshore platform
Technical Field
The invention relates to the field of renewable energy source utilization equipment, in particular to a large-scale renewable energy source hydrogen production liquefaction storage and transportation offshore platform.
Background
The hydrogen energy is used as a tie, renewable energy sources such as wind energy, solar energy and tidal energy are used for generating electricity to prepare hydrogen, so that the hydrogen preparation cost can be reduced, and the multi-energy complementary and multi-energy collaborative development of the hydrogen energy and new energy sources is realized. The wind energy resources in China are rich, the wind energy reserves and the developable amount are all in the world, wherein the developable wind energy reserves of 10m high land are 2.5 hundred million kw, and the wind energy reserves of the sea are 7.5 hundred million kw, and the total amount is 10 hundred million kw. The current land wind energy development progress is leading, but the development is urgently needed for renewable energy wind resources rich in deep open sea, the trend of the renewable energy source to the deep open sea and the current situation that the renewable energy source in deep open sea is difficult to generate electricity and send out remotely are comprehensively considered, and the renewable energy source can be used as secondary energy source and can also be used as the characteristic of an energy storage technology in combination with hydrogen energy. The deep open sea renewable energy source is used for producing hydrogen on site, electric energy is converted into green hydrogen energy, and then energy substance hydrogen is conveyed to the bank or a hydrogen energy storage micro-grid system is formed on site, so that electric energy storage and industrial utilization can be realized, and the problems of power transmission, energy storage, peak shaving, energy utilization and the like are effectively solved. Therefore, the offshore renewable energy hydrogen production becomes an important clean energy development mode in the future, and has great practical significance for energy structure transformation in China.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the large renewable energy hydrogen production liquefaction storage and transportation offshore platform is provided.
In order to solve the problems, the invention adopts the following technical scheme: the large renewable energy source hydrogen production liquefaction storage and transportation offshore platform comprises: the offshore platform is provided with a fan, a seawater purification system, an electrolytic hydrogen production system and a hydrogen fuel cell, and is characterized in that: the device is also provided with a hydrogen purification device, a liquefying system, a liquid hydrogen transfer device, a liquid oxygen transfer device, a liquid hydrogen tank set, a liquid oxygen tank set, a vaporization heater, a control center, a hydrogen buffer tank and a gas hydrogen compressor, wherein the electric energy output end of a fan is connected with the input end of an AC/DC converter through a cable, the output end of the AC/DC converter is connected with the electric energy input end of an electrolytic hydrogen production system through a cable, the seawater purification system is connected with the pure water inlet of the electrolytic hydrogen production system through a pipeline, the hydrogen outlet of the electrolytic hydrogen production system is connected with the inlet of the gas hydrogen compressor and the inlet of the hydrogen purification device through pipelines respectively, the outlet of the gas hydrogen compressor is connected with the inlet of the hydrogen buffer tank through a pipeline, the outlet of the hydrogen buffer tank and the outlet of the vaporization heater are connected with the control center through pipelines respectively, the control center is connected with a hydrogen fuel cell through a pipeline, and the structure of the liquefying system comprises: the device comprises a circulating hydrogen compressor, a semiconductor refrigerator, a first heat exchanger, a liquid nitrogen container, a second heat exchanger, a throttle valve, a liquid hydrogen container, a condensation container and a liquid oxygen gas-liquid separator, wherein an A1 passage and an A2 passage are arranged in the semiconductor refrigerator, a B1 passage, a B2 passage, a B3 passage, a B4 passage, a B5 passage and a B6 passage are arranged in the first heat exchanger, a C1 passage, a C2 passage, a C3 passage and a C4 passage are arranged in the liquid nitrogen container, a liquid nitrogen inlet and a gas nitrogen outlet are also arranged on the liquid nitrogen container, a D1 passage and a D2 passage are arranged in the second heat exchanger, an E passage is arranged in the liquid hydrogen container, a gas-liquid mixed hydrogen inlet and a gas hydrogen outlet are also arranged on the liquid hydrogen container, the bottom of the first overflow pipe is communicated with the gas hydrogen outlet, an F passage is arranged in the condensation container, a condensation inlet and a condensation outlet are also arranged on the liquid nitrogen container, a condensation overflow pipe is also arranged on the condensation container, a condensation overflow pipe is communicated with the bottom of the second overflow pipe is arranged in the condensation container; one end of the raw material hydrogen input pipe is connected with an inlet of an A2 passage, an outlet of the A2 passage is connected with an inlet of a B3 passage through a pipeline, an outlet of the B3 passage is connected with an inlet of a C2 passage through a pipeline, an outlet of the C2 passage is connected with a condensation inlet through a pipeline, a condensation outlet is connected with an inlet of an E passage through a pipeline, and an outlet of the E passage is connected with one end of a liquid hydrogen output pipe; the outlet of the circulating hydrogen compressor is connected with the inlet of the A1 passage through a pipeline, the outlet of the A1 passage is connected with the inlet of the B2 passage through a pipeline, the outlet of the B2 passage is connected with the inlet of the C1 passage through a pipeline, the outlet of the C1 passage is connected with the inlet of the D2 passage through a pipeline, the outlet of the D2 passage is connected with the inlet of the throttle valve through a pipeline, the outlet of the throttle valve is connected with the gas-liquid mixed hydrogen inlet of the liquid hydrogen container through a pipeline, the gas-hydrogen outlet of the liquid hydrogen container is connected with the inlet of the F passage through a pipeline, the outlet of the F passage is connected with the inlet of the D1 passage through a pipeline, the outlet of the D1 passage is connected with the inlet of the B1 passage through a pipeline, and the outlet of the B1 passage is connected with the inlet of the circulating hydrogen compressor through a pipeline; one end of the liquid nitrogen input pipe is connected with a liquid nitrogen inlet on the liquid nitrogen container, a gas nitrogen outlet on the liquid nitrogen container is connected with an inlet of the B4 passage through a pipeline, and an outlet of the B4 passage is connected with one end of the nitrogen output pipe through a pipeline; one end of the oxygen input pipe is connected with the inlet of the B6 passage, the outlet of the B6 passage is connected with the inlet of the C4 passage through a pipeline, the outlet of the C4 passage is connected with the inlet of the liquid oxygen gas-liquid separator through a pipeline, the liquid oxygen outlet of the liquid oxygen gas-liquid separator is connected with one end of the liquid oxygen output pipe, the gas oxygen outlet of the liquid oxygen gas-liquid separator is connected with the inlet of the C3 passage through a pipeline, the outlet of the C3 passage is connected with the inlet of the B5 passage through a pipeline, and the outlet of the B5 passage is connected with the oxygen input pipe through a pipeline; the outlet of the hydrogen purification device is connected with the other end of a raw material hydrogen input pipe in the liquefaction system and the inlet of the circulating hydrogen compressor through a pipeline respectively, the other end of the liquid hydrogen output pipe is connected with the inlet of the liquid hydrogen transfer device, the outlet of the liquid hydrogen transfer device is connected with the liquid hydrogen tank set through a pipeline, the oxygen outlet of the electrolytic hydrogen production system is connected with the other end of the oxygen input pipe through a pipeline, the other end of the liquid oxygen output pipe is connected with the inlet of the liquid oxygen transfer device, the outlet of the liquid oxygen transfer device is connected with the liquid oxygen tank set through a pipeline, the BOG outlet of the liquid hydrogen tank set and the BOG outlet of the liquid hydrogen transfer device are connected with the inlet of the throttle valve and the inlet of the vaporization heater through pipelines respectively, and the BOG outlet of the liquid oxygen transfer device is connected with the gas-oxygen outlet of the liquid oxygen gas-liquid separator through pipelines respectively.
Further, the large renewable energy hydrogen production liquefaction storage and transportation offshore platform, wherein: the device is also provided with a paramagnetic salt heat-insulating demagnetizing cooler which is connected in series with the liquid hydrogen output pipe.
Further, the large renewable energy hydrogen production liquefaction storage and transportation offshore platform, wherein: the electrolytic hydrogen production system adopts alkaline water electrolytic hydrogen production equipment or PEM water electrolytic hydrogen production equipment.
Further, the large renewable energy hydrogen production liquefaction storage and transportation offshore platform, wherein: a positive secondary hydrogen catalyst is arranged in the first heat exchanger and is connected in series with the inlet of the B3 passage; a positive para-hydrogen catalyst is disposed in the liquid nitrogen container and is connected in series with the inlet of the C2 passage.
Further, the large renewable energy hydrogen production liquefaction storage and transportation offshore platform, wherein: the semiconductor refrigerator is a refrigerator adopting the Peltier effect for refrigeration.
Further, the large renewable energy hydrogen production liquefaction storage and transportation offshore platform, wherein: the gas-liquid mixed hydrogen inlet is positioned at the top of the liquid hydrogen container, and the gas-hydrogen outlet is positioned at the bottom of the liquid hydrogen container; the condensing inlet is positioned at the top of the condensing container, and the condensing outlet is positioned at the bottom of the condensing container.
Further, the large renewable energy hydrogen production liquefaction storage and transportation offshore platform, wherein: the unmanned aerial vehicle and the robot are also arranged on the offshore platform, and can provide services for unmanned, patrol and communication of the platform.
Further, the large renewable energy hydrogen production liquefaction storage and transportation offshore platform, wherein: the power of the blower is 4 MW-10 MW, the purifying capacity of the seawater purifying system is 300-500 kg/h, and the maximum hydrogen yield of the electrolytic hydrogen producing system is more than or equal to 500Nm 3 Hydrogen for liquefaction systemThe liquefying amount is more than or equal to 500kg/d, the volume of the liquid hydrogen tank group is more than or equal to 39.5m and less than or equal to minus 253 ℃, the liquid hydrogen evaporation rate is less than or equal to 0.85 percent/d, the service life is more than or equal to 10 years, the volume of the liquid oxygen tank group is more than or equal to 39.5m, the design temperature is less than or equal to minus 196 ℃, the liquid oxygen evaporation rate is less than or equal to 0.3 percent/d, the service life is more than or equal to 10 years, and the single power of the hydrogen fuel cell is less than or equal to 40kW.
The invention has the advantages that: the large renewable energy source hydrogen production liquefaction storage offshore platform can utilize wind energy to produce hydrogen, and can liquefy the produced hydrogen, and the liquid hydrogen energy is stored in a liquid hydrogen tank set, so that ocean transportation of the liquid hydrogen can be facilitated, and the problem of low energy transportation efficiency in deep sea transportation is solved; the byproduct oxygen can be liquefied by utilizing the cold energy in the hydrogen liquefaction process, so that liquid oxygen is obtained, and the economic benefit can be greatly increased; in addition, the liquefaction system has a simple structure and small occupied area, simplifies the liquefaction process, reduces uncertainty in the liquefaction process, improves the stability of hydrogen liquefaction, does not move equipment in the liquefaction process, and furthest reduces the influence of the offshore shaking environment on the equipment; the produced liquid hydrogen energy is subjected to cryogenic cooling, so that liquid hydrogen or hydrogen slurry with the temperature lower than 20K can be obtained, and the storage time of the liquid hydrogen is greatly prolonged.
Drawings
FIG. 1 is a schematic diagram of the large renewable energy hydrogen production liquefaction storage and transportation offshore platform.
Fig. 2 is a schematic diagram of the liquefaction system shown in fig. 1.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1 and 2, the large renewable energy source hydrogen production liquefaction storage and transportation offshore platform comprises: offshore platform 18, be provided with fan 23 on offshore platform 18, sea water purification system 24, electrolysis hydrogen manufacturing system 25, hydrogen fuel cell 26, hydrogen purification device 27, liquefaction system 28, liquid hydrogen transfer device 29, liquid oxygen transfer device 11, liquid hydrogen tank case group 12, liquid oxygen tank case group 13, vaporization heater 14, control center 15, hydrogen buffer tank 16, gas hydrogen compressor 17, the electric energy output of fan 23 links to each other with the input of AC/DC converter through the cable, the output of AC/DC converter links to each other with the electric energy input of electrolysis hydrogen manufacturing system 25 through the cable, sea water purification system 24 links to each other with the pure water entry of electrolysis hydrogen manufacturing system 25 through the pipeline, the hydrogen export of electrolysis hydrogen manufacturing system 25 links to each other with the import of gas hydrogen compressor 17, the import of hydrogen purification device 27 respectively through the pipeline, the export of gas hydrogen compressor 17 links to each other with the import of hydrogen buffer tank 16 through the pipeline, the export of hydrogen buffer tank 16, the export of vaporization heater 14 links to each other with control center 15 through the pipeline respectively, control center 15 links to each other with hydrogen fuel cell 26 through the pipeline, the output of AC/DC converter links to each other 26, the output of hydrogen fuel cell 26 is used for supplying power to offshore platform 28 on the platform 28 includes the structure: a circulating hydrogen compressor 1, a semiconductor refrigerator 2, a first heat exchanger 3, a liquid nitrogen container 4, a second heat exchanger 5, a throttle valve 6, a liquid hydrogen container 7, a condensing container 8 and a liquid oxygen gas-liquid separator 9, wherein an A1 passage 21 and an A2 passage 22 are arranged in the semiconductor refrigerator 2, a B1 passage 31, a B2 passage 32, a B3 passage 33, a B4 passage 34, a B5 passage 35 and a B6 passage 36 are arranged in the first heat exchanger 3, a C1 passage 41, a C2 passage 42, a C3 passage 43 and a C4 passage 44 are arranged in the liquid nitrogen container 4, a liquid nitrogen inlet 45 and a gas nitrogen outlet 46 are also arranged on the liquid nitrogen container 4, a D1 passage 51 and a D2 passage 52 are arranged in the second heat exchanger 5, the liquid hydrogen container 7 is provided with an E passage 71, the liquid hydrogen container 7 is also provided with a gas-liquid mixed hydrogen inlet 72 and a gas-hydrogen outlet 73, the liquid hydrogen container 7 is provided with a first upright overflow pipe 74, the bottom of the first overflow pipe 74 is communicated with the gas-hydrogen outlet 73, the E passage 71 is integrally lower than the top of the first overflow pipe 74, the condensation container 8 is provided with an F passage 81, the condensation container 8 is also provided with a condensation inlet 82 and a condensation outlet 83, the condensation container 8 is provided with a second upright overflow pipe 84, and the bottom of the second overflow pipe 84 is communicated with the condensation outlet 83; one end of a raw material hydrogen input pipe 91 is connected with an inlet of an A2 passage 22, an outlet of the A2 passage 22 is connected with an inlet of a B3 passage 33 through a pipeline, an outlet of the B3 passage 33 is connected with an inlet of a C2 passage 42 through a pipeline, an outlet of the C2 passage 42 is connected with a condensation inlet 82 through a pipeline, a condensation outlet 83 is connected with an inlet of an E passage 71 through a pipeline, and an outlet of the E passage 71 is connected with one end of a liquid hydrogen output pipe 92; the outlet of the circulating hydrogen compressor 1 is connected with the inlet of the A1 passage 21 through a pipeline, the outlet of the A1 passage 21 is connected with the inlet of the B2 passage 32 through a pipeline, the outlet of the B2 passage 32 is connected with the inlet of the C1 passage 41 through a pipeline, the outlet of the C1 passage 41 is connected with the inlet of the D2 passage 52 through a pipeline, the outlet of the D2 passage 52 is connected with the inlet of the throttle valve 6 through a pipeline, the outlet of the throttle valve 6 is connected with the gas-liquid mixed hydrogen inlet 72 of the liquid hydrogen container 7 through a pipeline, the gas-hydrogen outlet 73 of the liquid hydrogen container 7 is connected with the inlet of the F passage 81 through a pipeline, the outlet of the F passage 81 is connected with the inlet of the D1 passage 51 through a pipeline, the outlet of the D1 passage 51 is connected with the inlet of the B1 passage 31 through a pipeline, and the outlet of the B1 passage 31 is connected with the inlet of the circulating hydrogen compressor 1 through a pipeline; one end of a liquid nitrogen input pipe 93 is connected with a liquid nitrogen inlet 45 on the liquid nitrogen container 4, a gas nitrogen outlet 46 on the liquid nitrogen container 4 is connected with an inlet of a B4 passage 34 through a pipeline, and an outlet of the B4 passage 34 is connected with one end of a nitrogen output pipe 94 through a pipeline; one end of an oxygen input pipe 95 is connected with an inlet of a B6 passage 36, an outlet of the B6 passage 36 is connected with an inlet of a C4 passage 44 through a pipeline, an outlet of the C4 passage 44 is connected with an inlet of a liquid oxygen gas-liquid separator 9 through a pipeline, a liquid oxygen outlet of the liquid oxygen gas-liquid separator 9 is connected with one end of a liquid oxygen output pipe 96, a gas oxygen outlet of the liquid oxygen gas-liquid separator 9 is connected with an inlet of a C3 passage 43 through a pipeline, an outlet of the C3 passage 43 is connected with an inlet of a B5 passage 35 through a pipeline, an outlet of the B5 passage 35 is connected with the oxygen input pipe 95 through a pipeline, a paramagnetic salt heat-insulating demagnetizing cooler 97 is further arranged, and the paramagnetic salt heat-insulating demagnetizing cooler 97 is connected with the liquid hydrogen output pipe 92 in series; the outlet of the hydrogen purification device 27 is connected with the other end of a raw material hydrogen input pipe 91 and the inlet of the recycle hydrogen compressor 1 in the liquefaction system through pipelines respectively, the pipeline 19 in fig. 2 is used for connecting the outlet of the hydrogen purification device 27 and the inlet of the recycle hydrogen compressor 1, the other end of the liquid hydrogen output pipe 92 is connected with the inlet of the liquid hydrogen transfer device 29, the outlet of the liquid hydrogen transfer device 29 is connected with the liquid hydrogen tank box group 12 through a pipeline, the oxygen outlet of the electrolytic hydrogen production system 25 is connected with the other end of the oxygen input pipe 95 through a pipeline, the other end of the liquid oxygen output pipe 96 is connected with the inlet of the liquid oxygen transfer device 11, the outlet of the liquid oxygen transfer device 11 is connected with the liquid oxygen tank box group 13 through a pipeline, the BOG outlet of the liquid hydrogen transfer device 29 is connected with the inlet of the throttle valve 6 and the inlet of the vaporization heater 14 respectively, the BOG outlet of the liquid oxygen tank box group 13 and the BOG outlet of the liquid oxygen transfer device 11 are connected with the gas oxygen outlet of the liquid oxygen gas separator 9 through a pipeline respectively, and the pipeline 191 in fig. 2 is used for conveying hydrogen and oxygen 192.
In the present embodiment, one normal-para-hydrogen catalyst 98 is provided in the first heat exchanger 3, and the normal-para-hydrogen catalyst 98 is connected in series at the inlet of the B3 passage 33. A positive para-hydrogen catalyst 98 is disposed in the liquid nitrogen container 4, the positive para-hydrogen catalyst 98 being connected in series at the inlet of the C2 passage 42. The gas-liquid mixed hydrogen inlet 72 is positioned at the top of the liquid hydrogen container 7, and the gas-hydrogen outlet 73 is positioned at the bottom of the liquid hydrogen container 7; the condensation inlet 82 is located at the top of the condensation vessel 8 and the condensation outlet 83 is located at the bottom of the condensation vessel 8.
The semiconductor refrigerator 2 is a refrigerator adopting the Peltier effect for refrigeration, a plurality of semiconductor refrigeration sheets, also called thermoelectric refrigeration sheets, are arranged in the semiconductor refrigerator 2, and the semiconductor refrigeration sheets are heat pumps. The semiconductor refrigerating sheet has the advantages that the semiconductor refrigerating sheet has no moving parts, is applied to occasions with limited space, high reliability requirement and no refrigerant pollution, and utilizes the Peltier effect of semiconductor materials, when direct current passes through a couple formed by connecting two different semiconductor materials in series, the semiconductor refrigerating sheet can absorb heat and emit heat respectively at two ends of the couple, and the purpose of refrigeration can be realized.
The paramagnetic salt adiabatic demagnetizing cooler 97 contains iron or rare earth elements, and magnetic refrigeration is a new technology for realizing refrigeration by utilizing the magnetocaloric effect of a magnetic material, wherein the magnetocaloric effect refers to the phenomenon that when an external magnetic field changes, the magnetic moment ordered arrangement of the magnetic material changes, namely the magnetic entropy changes, so that the material self absorbs and releases heat. When no external magnetic field exists, the direction of the magnetic moment in the magnetic material is disordered, and the magnetic entropy of the material is larger; when an external magnetic field exists, the orientation of magnetic moment in the material gradually tends to be consistent, and the magnetic entropy of the material is smaller. In the excitation process, the magnetic moment of the magnetic material is disordered to ordered along the magnetic field direction, the magnetic entropy is reduced, and the thermodynamic knowledge can know that the magnetic working medium releases heat outwards at the moment; in the demagnetizing process, the magnetic moment of the magnetic material is ordered to disordered along the magnetic field direction, the magnetic entropy is increased, and the magnetic working medium absorbs heat from the outside. And under the adiabatic condition, the magnetic working medium and the outside do not exchange heat, and in the excitation and demagnetization processes, the magnetic field works on the material to change the internal energy of the material, so that the temperature of the material is changed.
When the liquefaction system 28 works, the raw material hydrogen liquefaction process flow is as follows: raw hydrogen obtained by electrolytic hydrogen production by renewable energy sources on an offshore platform is input into an A2 passage 22 of a semiconductor refrigerator 2 through a raw hydrogen input pipe 91 for first cooling, then enters a B3 passage 33 of a first heat exchanger 3 for heat exchange with low-temperature nitrogen in a B4 passage 34 for second cooling, before cooling, the raw hydrogen undergoes normal-para-hydrogen conversion through a normal-para-hydrogen catalyst 98, then enters a C2 passage 42 of a liquid nitrogen container 4 for heat exchange with liquid nitrogen in the container for third cooling, before cooling, the raw hydrogen undergoes normal-para-hydrogen conversion again through a normal-para-hydrogen catalyst 98, the C2 passage 42 passes through liquid nitrogen, then enters a condensing container 8 for fourth cooling through heat exchange with circulating hydrogen in an F passage 81, so that part of the raw hydrogen can be condensed in the condensing container 8 to become raw liquid hydrogen, since the second overflow pipe 84 is arranged on the bottom of the condensation container 8, a certain amount of raw material liquid hydrogen can be accumulated on the bottom of the condensation container 8, the raw material liquid hydrogen at the bottom of the condensation container 8 can play a role in stabilizing the temperature in the condensation container 8, so that the raw material hydrogen can be condensed more easily in the condensation container 8, uncondensed raw material hydrogen and raw material liquid hydrogen overflowed from the second overflow pipe 84 can enter the E passage 71 of the liquid hydrogen container 7 together, a certain amount of liquid circulating hydrogen is accumulated in the liquid hydrogen container 7, and because the E passage 71 passes through the liquid circulating hydrogen, the raw material hydrogen in the E passage 71 can exchange heat with the liquid circulating hydrogen to be cooled and liquefied, then all the raw material liquid hydrogen can enter the paramagnetic salt adiabatic demagnetizing cooler 97 through the liquid hydrogen output pipe 92 to be cooled deeply, so that the raw material liquid hydrogen can be cooled to below 20K, so as to greatly improve the storage time of the raw material liquid hydrogen.
The flow of providing cold energy by liquid nitrogen is as follows: liquid nitrogen stored in the offshore platform enters the liquid nitrogen container 4 through the liquid nitrogen input pipe 93 to exchange heat, low-temperature gas nitrogen obtained through gasification enters the B4 passage 34 of the first heat exchanger 3 through a pipeline to exchange heat, and finally the gas nitrogen is discharged through the nitrogen output pipe 94. The gas nitrogen can be directly discharged into the atmosphere after being discharged, and can also enter a nitrogen circulation system to be liquefied again and then provide cold for hydrogen liquefaction.
The circulating process flow of the circulating hydrogen comprises the following steps: under the action of the circulating hydrogen compressor 1, circulating hydrogen enters the A1 passage 21 of the semiconductor refrigerator 2 to be cooled for the first time, then enters the B2 passage 32 of the first heat exchanger 3 to be cooled for the second time by heat exchange with low-temperature nitrogen in the B4 passage 34, then enters the C1 passage 41 of the liquid nitrogen container 4 to be cooled for the third time by heat exchange with liquid nitrogen in the container, the C1 passage 41 passes through the liquid nitrogen, then enters the D2 passage 52 of the second heat exchanger 5 to be cooled for the fourth time by heat exchange with low-temperature circulating hydrogen in the D1 passage 51, then enters the throttle valve 6 to be cooled by throttle expansion, so that part of the circulating hydrogen can be liquefied, at the moment, the circulating hydrogen is in a gas-liquid mixed state, then enters the liquid hydrogen container 7, the liquid circulating hydrogen can be accumulated to a certain height in the liquid hydrogen container 7 by virtue of the first overflow pipe 74, the gaseous circulating hydrogen can enter the heat exchange with the D1 passage 51 of the second heat exchange with the liquid nitrogen in the C1 passage 41 of the condensation container 4, then enters the D1 passage 1 of the high-temperature heat exchange with the low-temperature hydrogen 2 in the second heat exchange passage 1 to be cooled by the circulating hydrogen 2B 1 in the second heat exchange passage 1, and then enters the D1 to be cooled by heat exchange with the high-temperature hydrogen in the liquid hydrogen container 31 in the liquid hydrogen container 7, and then enters the liquid hydrogen container 7 to be cooled by heat exchange with the liquid 1, and then enters the D1, and then enters the circulating hydrogen 1 passage 1 to be cooled by the heat exchange with the circulating hydrogen 2 through the liquid 1 passage 1.
The liquefying process flow of the oxygen is as follows: oxygen generated by electrolytic hydrogen production is input into a B6 passage 36 of the first heat exchanger 3 through an oxygen input pipe 95 to exchange heat with low-temperature gas nitrogen in a B4 passage 34 for cooling, then enters a C4 passage 44 of the liquid nitrogen container 4 to exchange heat with liquid nitrogen in the container, so that the oxygen can be liquefied, then the oxygen in a gas-liquid mixed state enters a liquid-oxygen-liquid separator 9 for gas-liquid separation, the separated liquid oxygen is output through a liquid oxygen output pipe 96, the separated gas oxygen enters a C3 passage 43 of the liquid nitrogen container 4 to provide cold energy for the liquid nitrogen container 4, then the gas oxygen enters a B5 passage 35 of the first heat exchanger 3 to provide cold energy for the first heat exchanger 3, and then the gas oxygen enters the oxygen input pipe 95 to be added into an oxygen liquefaction flow again.
In this embodiment, the electrolytic hydrogen production system 25 employs an alkaline water electrolytic hydrogen production plant or a PEM water electrolytic hydrogen production plant. An unmanned aerial vehicle and a robot are also arranged on the offshore platform 18, and can provide services for unmanned, patrol and communication of the platform.
The power of the blower is 4 MW-10 MW, the purifying capacity of the seawater purifying system is 300-500 kg/h, and the maximum hydrogen yield of the electrolytic hydrogen producing system is more than or equal to 500Nm 3 And/h, the hydrogen liquefying amount of the liquefying system is more than or equal to 500kg/d, the volume of the liquid hydrogen tank group is more than or equal to 39.5m < 2 > and less than or equal to minus 253 ℃, the liquid hydrogen evaporation rate is less than or equal to 0.85 percent/d, the service life is more than or equal to 10 years, the volume of the liquid oxygen tank group is more than or equal to 39.5m, the design temperature is less than or equal to minus 196 ℃, the liquid oxygen evaporation rate is less than or equal to 0.3 percent/d, the service life is more than or equal to 10 years, and the single power of the hydrogen fuel cell is less than or equal to 40kW.
When the offshore platform is located in deep open sea, the rich ocean wind energy drives the fan 23 to operate, electric energy generated by the fan 23 is supplied to the electrolytic hydrogen production system 25 for electrolytic hydrogen production, the seawater purification system 24 can supply pure water for electrolysis to the electrolytic hydrogen production system 25, the product of the electrolytic hydrogen production system 25 is hydrogen and oxygen, wherein the hydrogen is divided into two paths, one path is supplied to the hydrogen purification device 27 for removing impurities such as oxygen and water vapor, the purified gas hydrogen is used as raw material hydrogen to be conveyed to the liquefying device 28 for hydrogen liquefaction, the liquefied liquid hydrogen is transferred to the liquid hydrogen tank set 12 for storage through the liquid hydrogen transfer device 29, the circulating hydrogen used in the liquefying device 28 can be supplemented through purified gas hydrogen after leakage, the other path is pressurized through the gas hydrogen compressor 17 and is filled into the hydrogen buffer tank 16, and then hydrogen is supplied to the hydrogen fuel cell 26 through the control center 15; the byproduct oxygen of the electrolytic hydrogen production system 25 is conveyed to the liquefying device 28 for liquefying, the liquefied liquid oxygen is transferred to the liquid oxygen tank set 13 for storage through the liquid oxygen transfer device 11, and finally the liquid hydrogen tank set 12 and the liquid oxygen tank set 13 are transferred to a transport ship through a crane on a platform.
The BOG gas hydrogen in the liquid hydrogen transfer device 29 and the liquid hydrogen tank set 12 may be used to supplement the circulating hydrogen in the liquefaction device 28, and after the determination by the control center 15, the BOG gas hydrogen may be supplied to the hydrogen fuel cell 26 after being heated by the vaporization heater 14.
BOG gas oxygen in the liquid oxygen transfer device 11 and the liquid oxygen tank group 13 can be returned to the liquefying device 28 for re-liquefying.
The liquid hydrogen transfer device 29 may also be used to fill a liquid hydrogen moving apparatus or a liquid hydrogen vessel.

Claims (8)

1. The large renewable energy source hydrogen production liquefaction storage and transportation offshore platform comprises: the offshore platform is provided with a fan, a seawater purification system, an electrolytic hydrogen production system and a hydrogen fuel cell, and is characterized in that: the device is also provided with a hydrogen purification device, a liquefying system, a liquid hydrogen transfer device, a liquid oxygen transfer device, a liquid hydrogen tank set, a liquid oxygen tank set, a vaporization heater, a control center, a hydrogen buffer tank and a gas hydrogen compressor, wherein the electric energy output end of a fan is connected with the input end of an AC/DC converter through a cable, the output end of the AC/DC converter is connected with the electric energy input end of an electrolytic hydrogen production system through a cable, the seawater purification system is connected with the pure water inlet of the electrolytic hydrogen production system through a pipeline, the hydrogen outlet of the electrolytic hydrogen production system is connected with the inlet of the gas hydrogen compressor and the inlet of the hydrogen purification device through pipelines respectively, the outlet of the gas hydrogen compressor is connected with the inlet of the hydrogen buffer tank through a pipeline, the outlet of the hydrogen buffer tank and the outlet of the vaporization heater are connected with the control center through pipelines respectively, the control center is connected with a hydrogen fuel cell through a pipeline, and the structure of the liquefying system comprises: the device comprises a circulating hydrogen compressor, a semiconductor refrigerator, a first heat exchanger, a liquid nitrogen container, a second heat exchanger, a throttle valve, a liquid hydrogen container, a condensation container and a liquid oxygen gas-liquid separator, wherein an A1 passage and an A2 passage are arranged in the semiconductor refrigerator, a B1 passage, a B2 passage, a B3 passage, a B4 passage, a B5 passage and a B6 passage are arranged in the first heat exchanger, a C1 passage, a C2 passage, a C3 passage and a C4 passage are arranged in the liquid nitrogen container, a liquid nitrogen inlet and a gas nitrogen outlet are also arranged on the liquid nitrogen container, a D1 passage and a D2 passage are arranged in the second heat exchanger, an E passage is arranged in the liquid hydrogen container, a gas-liquid mixed hydrogen inlet and a gas hydrogen outlet are also arranged on the liquid hydrogen container, the bottom of the first overflow pipe is communicated with the gas hydrogen outlet, an F passage is arranged in the condensation container, a condensation inlet and a condensation outlet are also arranged on the liquid nitrogen container, a condensation overflow pipe is also arranged on the condensation container, a condensation overflow pipe is communicated with the bottom of the second overflow pipe is arranged in the condensation container; one end of the raw material hydrogen input pipe is connected with an inlet of an A2 passage, an outlet of the A2 passage is connected with an inlet of a B3 passage through a pipeline, an outlet of the B3 passage is connected with an inlet of a C2 passage through a pipeline, an outlet of the C2 passage is connected with a condensation inlet through a pipeline, a condensation outlet is connected with an inlet of an E passage through a pipeline, and an outlet of the E passage is connected with one end of a liquid hydrogen output pipe; the outlet of the circulating hydrogen compressor is connected with the inlet of the A1 passage through a pipeline, the outlet of the A1 passage is connected with the inlet of the B2 passage through a pipeline, the outlet of the B2 passage is connected with the inlet of the C1 passage through a pipeline, the outlet of the C1 passage is connected with the inlet of the D2 passage through a pipeline, the outlet of the D2 passage is connected with the inlet of the throttle valve through a pipeline, the outlet of the throttle valve is connected with the gas-liquid mixed hydrogen inlet of the liquid hydrogen container through a pipeline, the gas-hydrogen outlet of the liquid hydrogen container is connected with the inlet of the F passage through a pipeline, the outlet of the F passage is connected with the inlet of the D1 passage through a pipeline, the outlet of the D1 passage is connected with the inlet of the B1 passage through a pipeline, and the outlet of the B1 passage is connected with the inlet of the circulating hydrogen compressor through a pipeline; one end of the liquid nitrogen input pipe is connected with a liquid nitrogen inlet on the liquid nitrogen container, a gas nitrogen outlet on the liquid nitrogen container is connected with an inlet of the B4 passage through a pipeline, and an outlet of the B4 passage is connected with one end of the nitrogen output pipe through a pipeline; one end of the oxygen input pipe is connected with the inlet of the B6 passage, the outlet of the B6 passage is connected with the inlet of the C4 passage through a pipeline, the outlet of the C4 passage is connected with the inlet of the liquid oxygen gas-liquid separator through a pipeline, the liquid oxygen outlet of the liquid oxygen gas-liquid separator is connected with one end of the liquid oxygen output pipe, the gas oxygen outlet of the liquid oxygen gas-liquid separator is connected with the inlet of the C3 passage through a pipeline, the outlet of the C3 passage is connected with the inlet of the B5 passage through a pipeline, and the outlet of the B5 passage is connected with the oxygen input pipe through a pipeline; the outlet of the hydrogen purification device is connected with the other end of a raw material hydrogen input pipe in the liquefaction system and the inlet of the circulating hydrogen compressor through a pipeline respectively, the other end of the liquid hydrogen output pipe is connected with the inlet of the liquid hydrogen transfer device, the outlet of the liquid hydrogen transfer device is connected with the liquid hydrogen tank set through a pipeline, the oxygen outlet of the electrolytic hydrogen production system is connected with the other end of the oxygen input pipe through a pipeline, the other end of the liquid oxygen output pipe is connected with the inlet of the liquid oxygen transfer device, the outlet of the liquid oxygen transfer device is connected with the liquid oxygen tank set through a pipeline, the BOG outlet of the liquid hydrogen tank set and the BOG outlet of the liquid hydrogen transfer device are connected with the inlet of the throttle valve and the inlet of the vaporization heater through pipelines respectively, and the BOG outlet of the liquid oxygen transfer device is connected with the gas-oxygen outlet of the liquid oxygen gas-liquid separator through pipelines respectively.
2. The large renewable energy hydrogen production liquefaction storage and transportation offshore platform of claim 1, wherein: the device is also provided with a paramagnetic salt heat-insulating demagnetizing cooler which is connected in series with the liquid hydrogen output pipe.
3. The large renewable energy hydrogen production liquefaction storage and transportation offshore platform according to claim 1 or 2, wherein: the electrolytic hydrogen production system adopts alkaline water electrolytic hydrogen production equipment or PEM water electrolytic hydrogen production equipment.
4. The large renewable energy hydrogen production liquefaction storage and transportation offshore platform according to claim 1 or 2, wherein: a positive secondary hydrogen catalyst is arranged in the first heat exchanger and is connected in series with the inlet of the B3 passage; a positive para-hydrogen catalyst is disposed in the liquid nitrogen container and is connected in series with the inlet of the C2 passage.
5. The large renewable energy hydrogen production liquefaction storage and transportation offshore platform according to claim 1 or 2, wherein: the semiconductor refrigerator is a refrigerator adopting the Peltier effect for refrigeration.
6. The large renewable energy hydrogen production liquefaction storage and transportation offshore platform according to claim 1 or 2, wherein: the gas-liquid mixed hydrogen inlet is positioned at the top of the liquid hydrogen container, and the gas-hydrogen outlet is positioned at the bottom of the liquid hydrogen container; the condensing inlet is positioned at the top of the condensing container, and the condensing outlet is positioned at the bottom of the condensing container.
7. The large renewable energy hydrogen production liquefaction storage and transportation offshore platform according to claim 1 or 2, wherein: the unmanned aerial vehicle and the robot are also arranged on the offshore platform, and can provide services for unmanned, patrol and communication of the platform.
8. The large renewable energy hydrogen production liquefaction storage and transportation offshore platform according to claim 1 or 2, wherein: the power of the blower is 4 MW-10 MW, the purifying capacity of the seawater purifying system is 300-500 kg/h, and the maximum hydrogen yield of the electrolytic hydrogen producing system is more than or equal to 500Nm 3 And/h, the hydrogen liquefying amount of the liquefying system is more than or equal to 500kg/d, the volume of the liquid hydrogen tank group is more than or equal to 39.5m < 2 > and less than or equal to minus 253 ℃, the liquid hydrogen evaporation rate is less than or equal to 0.85 percent/d, the service life is more than or equal to 10 years, the volume of the liquid oxygen tank group is more than or equal to 39.5m, the design temperature is less than or equal to minus 196 ℃, the liquid oxygen evaporation rate is less than or equal to 0.3 percent/d, the service life is more than or equal to 10 years, and the single power of the hydrogen fuel cell is less than or equal to 40kW.
CN202211460375.7A 2022-11-17 2022-11-17 Large renewable energy hydrogen production liquefaction storage and transportation offshore platform Pending CN116039854A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117160369A (en) * 2023-11-01 2023-12-05 中海石油气电集团有限责任公司 Method and device for catalytic conversion of normal-para-hydrogen by continuous and efficient operation of catalyst

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117160369A (en) * 2023-11-01 2023-12-05 中海石油气电集团有限责任公司 Method and device for catalytic conversion of normal-para-hydrogen by continuous and efficient operation of catalyst
CN117160369B (en) * 2023-11-01 2024-04-09 中海石油气电集团有限责任公司 Method and device for catalytic conversion of normal-para-hydrogen by continuous and efficient operation of catalyst

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