CN111172551B - Offshore floating hydrogen production and storage system - Google Patents

Offshore floating hydrogen production and storage system Download PDF

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Publication number
CN111172551B
CN111172551B CN201911403370.9A CN201911403370A CN111172551B CN 111172551 B CN111172551 B CN 111172551B CN 201911403370 A CN201911403370 A CN 201911403370A CN 111172551 B CN111172551 B CN 111172551B
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China
Prior art keywords
hydrogen
floating
baffle
storage
hydrogen production
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CN201911403370.9A
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CN111172551A (en
Inventor
袁威
黄卓
袁华平
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Shenzhen Xima Technology Co ltd
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Shenzhen Xima Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • C25B1/01Products
    • C25B1/02Hydrogen or oxygen
    • C25B1/04Hydrogen or oxygen by electrolysis of water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/06Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0656Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells

Abstract

The invention relates to an offshore floating type hydrogen production and storage system which comprises a floating type platform, a power generation device, a hydrogen production device and a hydrogen storage container. The floating platform can float on the sea, and the power generation device is arranged on the floating platform and can generate electric energy. The hydrogen production device is arranged on the floating platform and can electrolyze water to produce hydrogen by utilizing the electric energy generated by the power generation device, and the hydrogen storage container is arranged on the floating platform and can store the hydrogen generated by the hydrogen production device. The offshore floating hydrogen production and storage system can generate electric energy by using the power generation device so that the hydrogen production device can electrolyze water to produce hydrogen, and the hydrogen produced by the hydrogen production device can be stored in the hydrogen storage container. Because the whole offshore floating hydrogen production and storage system can float on the sea through the floating platform, the onshore construction space can be saved, the ecological environment nearby cannot be damaged, and the safety risk to residents is reduced.

Description

Offshore floating hydrogen production and storage system
Technical Field
The invention relates to the field of new energy and ocean engineering, in particular to an offshore floating hydrogen production and storage system.
Background
In recent years, with the development of hydrogen fuel cell technology, the possibility of using hydrogen gas as a popular fuel has been increasing. The hydrogen is used as a pollution-free environment-friendly fuel, not only can be used as an industrialized energy source, but also can enter households to be used as a household fuel, and has wide manufacturing and storage prospects. However, the flammable and explosive properties of hydrogen make the construction of large-scale hydrogen production and storage bases on land have a great risk.
Disclosure of Invention
The embodiment of the invention provides an offshore floating hydrogen production and storage system, which is used for reducing the risk of building a hydrogen production and storage base on land.
An offshore floating hydrogen production and storage system comprising:
a floating platform capable of floating on the sea;
the power generation device is arranged on the floating platform and can generate electric energy;
the hydrogen production device is arranged on the floating platform and can electrolyze water by using the electric energy generated by the power generation device to produce hydrogen; and
and the hydrogen storage container is arranged on the floating platform and can store the hydrogen generated by the hydrogen production device.
The offshore floating hydrogen production and storage system can generate electric energy by using the power generation device so that the hydrogen production device can electrolyze water to produce hydrogen, and the hydrogen produced by the hydrogen production device can be stored in the hydrogen storage container. Because the whole offshore floating hydrogen production and storage system can float on the sea through the floating platform, the onshore construction space can be saved, the ecological environment nearby cannot be damaged, and the safety risk to residents is reduced.
In one embodiment, the floating platform comprises an upper floating body and a lower floating body connected with the upper floating body, wherein when the floating platform floats on the sea, the lower floating body is positioned below the water surface, and the upper floating body extends out of the water surface; the power generation device is connected with at least one of the upper floating body and the lower floating body, the hydrogen production device is connected with at least one of the upper floating body and the lower floating body, the lower floating body is provided with a cavity, and the hydrogen storage container is accommodated in the cavity.
In one embodiment, a gap is formed between the outer wall of the hydrogen storage container and the inner wall of the lower floating body, and the gap is filled with a composite material interlayer.
In one embodiment, the composite sandwich includes a fiberglass layer covering the outer wall of the hydrogen storage vessel and a resin layer covering the fiberglass layer.
In one embodiment, more than two hydrogen storage containers are arranged in the cavity at intervals, and concrete is filled between every two adjacent hydrogen storage containers; the offshore floating hydrogen production and storage system comprises a hydrogen conveying pipeline, wherein the hydrogen conveying pipeline is communicated with the hydrogen storage container and the hydrogen production device, and part of the structure of the hydrogen conveying pipeline is accommodated in the concrete.
In one embodiment, the lower floating body comprises a first floating body and a second floating body, the first floating body comprises a first shell and a first baffle, the first baffle is connected to one end of the first shell and forms a first cavity with the first shell for accommodating the hydrogen storage container, the circumferential direction of the first baffle protrudes out of the first shell, and a first connecting hole is formed in the part of the first baffle protruding out of the first shell; the second floating body comprises a second shell, a second baffle and a third baffle, the second baffle and the third baffle are respectively connected to two ends of the second shell and form a second cavity with the second shell, the circumference of the second baffle and the circumference of the third baffle respectively protrude out of the second shell, a second connecting hole is formed in the position of the second baffle protruding out of the second shell, and a third connecting hole is formed in the position of the third baffle protruding out of the second shell; the first type of floating body can be connected to the second type of floating body through the first baffle.
In one embodiment, the lower floating body further comprises a third floating body, the third floating body comprises a third shell, a fourth baffle and a fifth baffle, the fourth baffle and the fifth baffle are respectively connected to two ends of the third shell and form a third cavity with the third shell for accommodating the hydrogen storage container, the circumferential direction of the fourth baffle and the circumferential direction of the fifth baffle are respectively protruded out of the third shell, a fourth connecting hole is formed in a position of the fourth baffle protruding out of the third shell, a fifth connecting hole is formed in a position of the fifth baffle protruding out of the third shell, and the third floating body can be connected to the second floating body through the fourth baffle or the fifth baffle.
In one embodiment, the power generation device comprises at least one of a wind power generator, a solar power generator, a wave power generator and a diesel power generator; the offshore floating hydrogen production and storage system further comprises a storage battery for storing electric energy, and the storage battery is arranged on the floating platform.
In one embodiment, the hydrogen production device comprises a seawater desalination device and an electrolyzed water hydrogen production device, the seawater desalination device and the electrolyzed water hydrogen production device are respectively arranged on the floating platform, and the power generation device can supply power to the seawater desalination device and the electrolyzed water hydrogen production device.
In one embodiment, the offshore floating hydrogen production and storage system further comprises a hydrogen fuel cell arranged on the floating platform, hydrogen stored in the hydrogen storage container can be conveyed to the hydrogen fuel cell to enable the hydrogen fuel cell to generate electric energy, and the hydrogen fuel cell can supply power to the offshore floating hydrogen production and storage system.
Drawings
FIG. 1 is a schematic diagram of an offshore floating hydrogen production and storage system in one embodiment;
FIG. 2 is a cross-sectional view of an embodiment of the offshore floating hydrogen production and storage system of FIG. 1;
FIG. 3 is a schematic block diagram of the offshore floating hydrogen production and storage system shown in FIG. 1;
FIG. 4 is a cross-sectional view of the lower float, hydrogen storage vessel and composite sandwich of the offshore floating hydrogen production and storage system in one embodiment;
FIG. 5 is a cross-sectional view of a first type of float in an offshore floating hydrogen production and storage system;
FIG. 6 is a cross-sectional view of a second type of float of the offshore floating hydrogen production and storage system in one embodiment;
FIG. 7 is a cross-sectional view of a third type of float of the offshore floating hydrogen production and storage system in one embodiment;
fig. 8 is a schematic diagram of an assembly relationship of a first type floating body, a second type floating body and a third type floating body of the offshore floating hydrogen production and storage system in one embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, in one embodiment, an offshore floating hydrogen production and storage system 10 is capable of floating offshore and utilizing offshore renewable energy to produce and store hydrogen. The offshore floating hydrogen production and storage system 10 can be towed to a required working site for long-time operation. The hydrogen stored by the offshore floating hydrogen production and storage system 10 can be transported to users or factories for use by transport ships, so as to obtain good environmental protection benefit and economic benefit.
The offshore floating hydrogen production and storage system 10 comprises a floating platform 100, a power generation device 200 and a hydrogen production device, and in combination with fig. 2, the offshore floating hydrogen production and storage system 10 further comprises a hydrogen storage container 300 for storing hydrogen. The main body of the vessel 100 is made of hollow steel structures sealed to form a cavity so that the vessel 100 can float on the sea and withstand the wave currents. Power generation facility 200, hydrogen production facility, and hydrogen storage vessel 300 are each coupled to floating platform 100 and are supported by floating platform 100. The power generation device 200 at least comprises one of a wind power generator 210, a solar power generator 220, a wave power generator and a diesel power generator, wherein the wind power generator 210, the solar power generator 220 and the wave power generator can utilize offshore renewable energy sources (wind energy, solar energy and wave energy) to generate power and provide electric energy for hydrogen production devices and other electrical equipment of the system. Further, referring to fig. 3, the offshore floating hydrogen production and storage system 10 further includes a micro-grid system (controller, power distribution station, etc.) matched with the power generation device 200 and a storage battery for storing electric energy, and the micro-grid system and the storage battery are disposed on the floating platform 100. Through the control and allocation of the microgrid system, a part of the electric energy generated by the power generation device 200 can be used by a hydrogen production device and other electrical equipment, and the redundant electric energy can be stored in the storage battery so as to provide the electric energy for the system by utilizing the storage battery when the power supply of the power generation device 200 is insufficient. The hydrogen production apparatus can electrolyze water to produce hydrogen using the electric energy generated by the power generation apparatus 200, and the hydrogen produced by the hydrogen production apparatus can be stored in the hydrogen storage container 300.
Referring again to fig. 1, floating platform 100 includes an upper buoy 110, a lower buoy 120 coupled to upper buoy 110, and a deck 130 coupled to upper buoy 110. When floating platform 100 is floating on the sea, lower float 120 is located below the water surface, upper float 110 extends out of the water surface, power generation device 200 is connected to at least one of upper float 110 and lower float 120, and hydrogen generation device is connected to at least one of upper float 110 and lower float 120. Referring to fig. 2, the lower float 120 includes more than two hollow steel structures 121 with relatively large volume, and two adjacent hollow steel structures 121 may be connected by using hollow steel pipes or other connecting members. The hollow steel structure 121 forms a cavity 123, and the hydrogen storage container 300 is accommodated in the cavity 123, that is, when the above-mentioned floating hydrogen production and storage system 10 floats on the sea, the hydrogen storage container 300 is located below the water surface. The cross-section of the hollow steel structure 121 may be circular, oblong or square, which can withstand relatively large external water pressure. This arrangement takes full advantage of the space of the vessel 100, resulting in a more compact and safer structure. In some embodiments, the upper float 110 includes more than two vertical hollow tubes 111, and the adjacent vertical hollow tubes 111 may be connected using hollow steel tubes or other connectors. One end of the vertical hollow tube 111 is connected to the hollow steel structure 121 of the lower float 120, the other end of the vertical hollow tube 111 is connected to the deck 130, and a wind power generator 210, a solar photovoltaic panel, a hydrogen production device, other power generation devices 200 and the like can be arranged on one side of the deck 130, which is far away from the lower float 120.
Further, more than two hydrogen storage containers 300 may be disposed at intervals in the cavity 123 of each lower float 120. Referring to fig. 2, a gap is formed between the outer wall of the hydrogen storage container 300 and the inner wall of the lower float 120, and the gap is filled with a composite material sandwich 400. In some embodiments, the gap may have a width of 1 to 5 centimeters. Referring to fig. 4, the composite sandwich 400 may include a glass fiber layer 410 and a resin layer 420 covering the glass fiber layer 410, and before the hydrogen storage container 300 is installed in the lower floating body 120, the glass fiber layer 410 may be coated on an outer wall of the hydrogen storage container 300, the hydrogen storage container 300 coated with the glass fiber layer 410 may be installed in the cavity 123 of the lower floating body 120, a gap may be formed between the hydrogen storage container 300 coated with the glass fiber layer 410 and an inner wall of the lower floating body 120, and the resin layer 420 may be filled in the gap to form the resin layer 420. This structure allows the hydrogen storage container 300, the composite sandwich 400, and the lower float 120 to form an integrated pressure-bearing structure so that the hydrogen storage container 300 can bear a large hydrogen pressure, and this structure can greatly reduce the weight of the hydrogen storage container 300. The composite material interlayer 400 can form a metal-composite material-metal stress structure, so that stress between two layers of metal (the outer wall of the hydrogen storage container 300 and the outer wall of the lower floating body 120) can be uniformly transmitted, and the pressure bearing performance is improved.
Referring to fig. 2, in some embodiments, one or both ends of the hydrogen storage vessel 300 are not covered by the composite sandwich 400, i.e., one end and both ends of the hydrogen storage vessel 300 are exposed. The concrete 500 is filled between the exposed ends of two adjacent hydrogen storage containers 300, and the concrete 500 covers the part of the hydrogen storage containers 300 which is not covered by the composite material interlayer 400, so as to ensure that the exposed ends of the hydrogen storage containers 300 and the part covered by the composite material interlayer 400 have close pressure bearing performance. Further, the offshore floating hydrogen production and storage system 10 includes a hydrogen transportation pipeline 600, the hydrogen transportation pipeline 600 is communicated with the hydrogen storage container 300, and part of the structure of the hydrogen transportation pipeline 600 is accommodated in the concrete 500, and the hydrogen transportation pipeline 600 extending from the concrete 500 extends into the upper floating body 110 and is communicated to the hydrogen production device.
Referring to fig. 3, the hydrogen production apparatus includes a seawater desalination device and an electrolyzed water hydrogen production device, which are respectively provided at the floating platform 100, and for example, the seawater desalination device and the electrolyzed water hydrogen production device may be respectively connected to the deck 130 of the floating platform 100. The seawater desalination device can desalt seawater, that is, desalt seawater, and supply the processed water to the water electrolysis hydrogen production device to electrolyze water to produce hydrogen, and the hydrogen is conveyed to the hydrogen storage container 300 through the hydrogen conveying pipeline 600. Further, the offshore floating hydrogen production and storage system 10 further includes a hydrogen fuel cell disposed on the floating platform 100, and the hydrogen pipeline 600 communicates the hydrogen storage container 300 and the hydrogen fuel cell. When the power generation device 200 is short of power supply, the hydrogen stored in the hydrogen storage container 300 can be delivered to the hydrogen fuel cell to enable the hydrogen fuel cell to generate electric energy, so as to supply power to the offshore floating hydrogen production and storage system 10 through the hydrogen fuel cell.
Referring to fig. 5 and 6, in other embodiments, the lower float 120 may include a first type float 125 and a second type float 127, the first type float 125 includes a first case 1251 and a first barrier 1253, the first barrier 1253 is connected to one end of the first case 1251 and forms a first cavity 1255 with the first case 1251 for accommodating the hydrogen storage container 300, a circumferential direction of the first barrier 1253 protrudes out of the first case 1251 and the first barrier 1253 is provided with a first connection hole 1253a at a portion protruding out of the first case 1251. The first bezel 1253 may be disk-shaped or rectangular plate-shaped or other shapes. The second floating body 127 includes a second housing 1271, a second baffle 1273 and a third baffle 1275, the second baffle 1273 and the third baffle 1275 are respectively connected to two ends of the second housing 1271 and form a second cavity 1277 with the second housing 1271, the circumferential direction of the second baffle 1273 and the circumferential direction of the third baffle 1275 are respectively protruded out of the second housing 1271, the second baffle 1273 is provided with a second connection hole 1273a at a portion protruded from the second housing 1271, and the third baffle 1275 is provided with a third connection hole 1275a at a portion protruded from the second housing 1271. The second baffle 1273 may have a disk shape or a rectangular disk shape or other shapes, and the third baffle 1275 may have a disk shape or a rectangular disk shape or other shapes. The first type float 125 can be connected to the second type float 127 through a first baffle 1253. Specifically, the second baffle 1273 or the third baffle 1275 of the second type floating body 127 may face the first baffle 1253 and be close to the first baffle 1253 so that the second connection hole 1273a or the third connection hole 1275a corresponds to the first connection hole 1253a to pass through a threaded fastener such as a bolt or other connector, thereby achieving reliable fixation of the first type floating body 125 and the second type floating body 127.
Further, referring to fig. 7, the lower floater 120 may further include a third type floater 129, and the third type floater 129 includes a third housing 1291, a fourth baffle 1293, and a fifth baffle 1295, the fourth baffle 1293 and the fifth baffle 1295 being respectively connected to both ends of the third housing 1291 and forming a third cavity 1297 with the third housing 1291 for accommodating the hydrogen storage vessel 300. The circumference of the fourth baffle 1293 and the circumference of the fifth baffle 1295 respectively protrude out of the third shell 1291, a fourth connecting hole 1293a is formed in the portion of the fourth baffle 1293 protruding out of the third shell 1291, a fifth connecting hole 1295a is formed in the portion of the fifth baffle 1295 protruding out of the third shell 1291, and with reference to fig. 6, the third type floating body 129 can be connected to the second type floating body 127 through the fourth baffle 1293 or the fifth baffle 1295. Specifically, the fourth shutter 1293 may have a disk shape or a rectangular disk shape or other shapes, and the fifth shutter 1295 may have a disk shape or a rectangular disk shape or other shapes. The second baffle 1273 or the third baffle 1275 of the second type floating body 127 can face the fourth baffle 1293 and be close to the fourth baffle 1293 so that the second connecting hole 1273a or the third connecting hole 1275a corresponds to the fourth connecting hole 1293a to penetrate a threaded fastener such as a bolt or other connecting piece, thereby realizing the reliable fixation of the third type floating body 129 and the second type floating body 127. Of course, in other embodiments, the second baffle 1273 or the third baffle 1275 of the second type floating body 127 may face the fifth baffle 1295 and be close to the fifth baffle 1295 so that the second connecting hole 1273a or the third connecting hole 1275a corresponds to the fifth connecting hole 1295a to be penetrated by a threaded fastener such as a bolt or other connecting member, thereby achieving the reliable fixation of the third type floating body 129 and the second type floating body 127.
Further, in the embodiment that the lower float 120 includes the first type float 125, the second type float 127 and the third type float 129, referring to fig. 8, one end of the first type float 125 facing away from the first baffle 1253 forms a free end of the lower float 120, and the second type float 127 serves as an intermediate connecting member, and both ends thereof may be used to connect the first type float 125 and the third type float 129. Of course, one second type float 127 may be connected to another second type float 127 to adjust the buoyancy that the lower float 120 can generate. The second type float 127 and the third type float 129 may be circularly arranged as needed during the actual assembly process to increase the length of the lower float 120 and the number of hydrogen storage vessels 300. In such an embodiment, the hydrogen storage vessels 300 in the first cavity 1255 may be completely surrounded by the composite sandwich 400, and the hydrogen storage vessels 300 in the third cavity 1297 may likewise be completely surrounded by the composite sandwich 400, thereby allowing for a better performing pressure bearing structure. The hydrogen storage container 300 in the first cavity 1255 may be communicated to the water electrolysis hydrogen production equipment and the hydrogen fuel cell through the hydrogen delivery pipe 600, and the hydrogen storage container 300 in the third cavity 1297 may also be communicated to the water electrolysis hydrogen production equipment and the hydrogen fuel cell through the hydrogen delivery pipe 600. The first type, second type and third type floats 125, 127 and 129 of the above structure can be produced in a modular manner, so that the connection of the lower float 120 and the hydrogen storage container 300 is convenient, the manufacture of the lower float 120 is simple, and the maintenance and repair are convenient. Of course, it is to be understood that the third type of floating body 129 is not required and may be omitted.
The above-mentioned offshore floating hydrogen production and storage system 10, utilize the power generation facility 200 to produce the electric energy, for the hydrogen production facility to electrolyze water and produce hydrogen, the hydrogen produced by the hydrogen production facility can be stored in the hydrogen storage container 300, it has the following advantages at least:
1) the offshore floating hydrogen production and storage system 10 utilizes the floating platform 100 as a bearing foundation and can float on the sea, so that the onshore construction space can be saved, a large amount of hydrogen can be stored, the ecological environment nearby cannot be damaged, and the safety risk to residents is reduced.
2) The offshore floating hydrogen production and storage system 10 can generate electricity to produce hydrogen by fully utilizing green energy sources such as wind energy, solar energy, wave energy and the like, is favorable for protecting the environment and reducing the emission of pollutants.
3) The offshore floating hydrogen production and storage system 10 makes full use of the lower floating body 120 structure for providing buoyancy, so that the lower floating body and the hydrogen storage container 300 form a common pressure-bearing structure. The composite material interlayer 400 is filled between the metal outer wall of the hydrogen storage container 300 and the metal outer wall of the lower floating body 120 to form a metal-composite material-metal stress structure, so that the stress between the two layers of metal can be uniformly transmitted, and the pressure bearing performance is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An offshore floating hydrogen production and storage system, comprising:
the floating platform can float on the sea and comprises a lower floating body arranged below the water surface, wherein the lower floating body comprises a hollow steel structure, and a cavity is formed by the hollow steel structure;
the power generation device is arranged on the floating platform and can generate electric energy;
the hydrogen production device is arranged on the floating platform and can electrolyze water by using the electric energy generated by the power generation device to produce hydrogen; and
the hydrogen storage container is arranged on the floating platform and can store hydrogen generated by the hydrogen production device; the hydrogen storage container is accommodated in the cavity, a gap is formed between the outer wall of the hydrogen storage container and the inner wall of the lower floating body, and the gap is filled with a composite material interlayer to form a metal-composite material-metal pressure-bearing structure.
2. The offshore floating hydrogen and hydrogen production and storage system of claim 1, wherein the floating platform comprises an upper float connected to the lower float, the upper float extending out of the water when the floating platform is floating at sea; the power generation device is connected to at least one of the upper floating body and the lower floating body, and the hydrogen production device is connected to at least one of the upper floating body and the lower floating body.
3. The offshore floating hydrogen production and storage system of claim 1, wherein the composite sandwich comprises a fiberglass layer coating the outer wall of the hydrogen storage vessel and a resin layer covering the fiberglass layer.
4. The offshore floating hydrogen production and storage system according to claim 1, wherein more than two hydrogen storage containers are arranged in the cavity at intervals, and concrete is filled between the adjacent hydrogen storage containers.
5. The offshore floating hydrogen production and storage system according to claim 4, wherein the offshore floating hydrogen production and storage system comprises a hydrogen delivery pipeline, the hydrogen delivery pipeline is communicated with the hydrogen storage container and the hydrogen production device, and part of the structure of the hydrogen delivery pipeline is accommodated in the concrete.
6. The offshore floating hydrogen production and storage system according to claim 2, wherein the lower float comprises a first float and a second float, the first float comprises a first shell and a first baffle, the first baffle is connected to one end of the first shell and forms a first cavity with the first shell for accommodating the hydrogen storage container, the first baffle protrudes out of the first shell in the circumferential direction and is provided with a first connecting hole at a position protruding out of the first shell; the second floating body comprises a second shell, a second baffle and a third baffle, the second baffle and the third baffle are respectively connected to two ends of the second shell and form a second cavity with the second shell, the circumference of the second baffle and the circumference of the third baffle respectively protrude out of the second shell, a second connecting hole is formed in the position of the second baffle protruding out of the second shell, and a third connecting hole is formed in the position of the third baffle protruding out of the second shell; the first type of floating body can be connected to the second type of floating body through the first baffle.
7. The offshore floating hydrogen production and storage system according to claim 6, wherein the lower float further comprises a third float, the third float comprises a third shell, a fourth baffle and a fifth baffle, the fourth baffle and the fifth baffle are respectively connected to two ends of the third shell and form a third cavity with the third shell for accommodating the hydrogen storage container, the fourth baffle and the fifth baffle protrude outwards from the third shell in the circumferential direction, the fourth baffle is provided with a fourth connecting hole at a position protruding out of the third shell, the fifth baffle is provided with a fifth connecting hole at a position protruding out of the third shell, and the third float can be connected to the second float through the fourth baffle or the fifth baffle.
8. The offshore floating hydrogen and hydrogen production and storage system according to any one of claims 1 to 7, wherein the power generation device comprises at least one of a wind power generator, a solar power generator, a wave power generator and a diesel power generator; the offshore floating hydrogen production and storage system further comprises a storage battery for storing electric energy, and the storage battery is arranged on the floating platform.
9. The offshore floating hydrogen and hydrogen production and storage system according to any one of claims 1 to 7, wherein the hydrogen production device comprises a seawater desalination device and an electrolyzed water hydrogen production device, the seawater desalination device and the electrolyzed water hydrogen production device are respectively arranged on the floating platform, and the power generation device can supply power to the seawater desalination device and the electrolyzed water hydrogen production device.
10. The offshore floating hydrogen production and storage system according to claim 9, further comprising a hydrogen fuel cell disposed on the floating platform, wherein hydrogen stored in the hydrogen storage vessel can be transported to the hydrogen fuel cell to enable the hydrogen fuel cell to generate electric energy, and the hydrogen fuel cell can supply power to the offshore floating hydrogen production and storage system.
CN201911403370.9A 2019-12-30 2019-12-30 Offshore floating hydrogen production and storage system Active CN111172551B (en)

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