Offshore floating type wind power hydrogen production filling station and operation method thereof

Abstract

The invention discloses an offshore floating type wind power hydrogen production filling station, and belongs to the technical field of ocean new energy. The filling station is composed of a floating type wind power hydrogen production platform, a refilling pipeline, a seabed pressure-resistant hydrogen storage tank and an outer conveying pipeline. The wind power hydrogen production platform is composed of a floating foundation, a wind power module, a seawater desalination and water electrolysis module, a hydrogen pressurization reinjection module and the like. A wind power module on the floating foundation supplies power to the seawater desalination and water electrolysis module and the hydrogen pressurization and reinjection module; hydrogen of water electrolysis of the seawater desalination and water electrolysis module is conveyed to the hydrogen pressurization and reinjection module to be pressurized, and then is conveyed to a reinjection pipeline to reach a seabed pressure-resistant hydrogen storage tank; during operation, an outer conveying pipeline at the top of the seabed pressure-resistant hydrogen storage tank is communicated with a transport ship. The device is applied to an ocean area with the water depth ranging from 0 m to 200 m, the pressure-resistant tank body can bear the water pressure of 2 mpa, and a tensioning type mooring system is adopted for positioning. The device has independent ocean wind energy acquisition and hydrogen filling functions, oxygen isolation safety operation is facilitated, and a hydrogen liquefaction device does not need to be arranged.

Description

Technical Field

[0001] The invention belongs to the field of marine new energy technology and relates to an offshore floating wind power hydrogen production and filling station and an operation method thereof. Background Art

[0002] In recent years, wind power, as a renewable and clean energy source, has continuously increased its share in the world's energy supply. my country's wind power industry is currently developing rapidly, and its total power generation has reached the first place in the world. However, there are few onshore and offshore wind farms left, and the deep sea will surely become the main battlefield for the future development of the wind power industry. Deep sea areas are rich in wind resources, but shore-connected grid connection requires the addition of offshore substations, long-distance cables and other facilities, resulting in large power transmission losses and high costs. In recent years, the industry has proposed a method of using wind power to produce hydrogen, which is to convert unstable wind power into a stable energy storage medium, and has been put into practical use on land abroad.

[0003] At present, the most common way to produce hydrogen is electrolysis. According to the different electrolyzers [Zhao Yinfeng, Analysis of Patent Technology for Hydrogen Production from Offshore Wind Power, Science and Technology Innovation and Application, Issue 25, 2024], electrolysis can be divided into three types: alkaline, proton exchange membrane, and solid oxide. As for the electrolysis method, alkaline electrolysis and proton exchange membrane electrolysis are still the mainstream methods of electrolysis. Both technologies require pure water as the raw material for electrolysis.

[0004] One of the main difficulties in offshore wind power hydrogen production is the storage, transmission and consumption of hydrogen [Liu Chao, Li Ouping, Shen Qi, Cheng Guangyuan, Yu Xichong, Offshore Wind Power Hydrogen Production Mode and Adaptability Analysis, China Offshore Platform, 2024, 39(05)]. At present, the common hydrogen storage methods include gaseous hydrogen storage, liquid hydrogen storage and synthetic ammonia hydrogen storage. Since the liquefaction temperature of hydrogen is -252.78℃, it is necessary to install large-scale refrigeration and high-pressure equipment on the floating basis, which increases the weight and safety risks of the system. Synthetic ammonia hydrogen storage is to further synthesize green hydrogen with CO2 or N2 into methanol or ammonia, and use transport ships to transport it, but it may require the introduction of a large amount of CO2 or N2 as raw materials, which is difficult to operate in the deep sea for a long time.

[0005] The offshore export of liquid hydrogen requires the development of dedicated insulated pipelines and connecting joints, and the technology is not yet mature.

[0006] On the other hand, most traditional transport ships use diesel as energy. It is highly polluting. During ocean transport, due to the lack of marine fuel supply, large fuel tanks need to be installed, which squeezes the cargo capacity of the cargo hold and leads to poor economy. In recent years, with the improvement of energy-saving and environmental protection technologies, the use of clean energy such as hydrogen as fuel has become one of the development trends of future ships. Summary of the invention

[0007] In view of the problems existing in the prior art, the present invention proposes an offshore floating wind power hydrogen production and filling station and its operation method, which uses gaseous hydrogen for storage and external transmission. Setting up the device on freight-intensive routes can be conducive to the full development and utilization of deep-sea wind power resources, and play the role of an offshore refueling station, which can effectively reduce the size of ship fuel tanks, reduce transportation costs, and reduce ship pollution.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is:

[0009] An offshore floating wind power hydrogen production and filling station comprises a floating wind power hydrogen production platform, a reinjection pipeline, a seabed pressure-resistant hydrogen storage tank 15, an external transmission pipeline and a plurality of mooring cables and a transmission pipeline.

[0010] The wind power hydrogen production platform is composed of a floating foundation 1, a wind power module 2, two cables 3, a seawater desalination and water electrolysis module 4, a hydrogen delivery steel pipe 5, a hydrogen pressurized reinjection module 6, several anchor windlasses 21, mooring cables 22 and a seabed foundation 23. The floating foundation 1 is a cylindrical structure with a circular moon pool in the middle and a deck on the upper surface; the anchor windlass 21 is arranged on the deck, and the anchor windlass 21 is connected to the seabed foundation 23 through the anchor windlass 21, and the floating foundation 1 is positioned by tightening the mooring cables 22. The top of the wind power module 2 is a horizontal axis wind turbine, and the bottom is fixed on the deck. The desalination and water electrolysis module 4 and the hydrogen pressurized reinjection module 6 are arranged on the deck, and the current generated by the wind power module 2 is used to power the desalination and water electrolysis module 4 and the hydrogen pressurized reinjection module 6 through two cables 3: the desalination and water electrolysis module 4 electrolyzes water to obtain hydrogen and oxygen, the oxygen is directly discharged, and the hydrogen is transported to the hydrogen pressurized reinjection module 6 through the transport steel pipe 5 for pressurization, and then transported to the hydrogen reinjection flexible pipe 7.

[0011] The reinjection pipeline comprises a reinjection flexible pipe 7, a cylindrical buoy 8, a reinjection rigid straight pipe 10, a vertical expansion joint 11, a reinjection rigid curved pipe 12, a horizontal expansion joint 13, a submarine transmission pipeline 14 and a plurality of positioning springs.

[0012] The cylindrical buoy 8 is located in the middle of the moon pool of the floating foundation 1 and is connected to the wall of the moon pool of the floating foundation by a positioning spring 9. One end of the reinjection flexible pipe 7 is connected to the hydrogen pressurization reinjection module 6, and the other end passes through the cylindrical buoy 8 and is connected to the reinjection rigid straight pipe 10 below. The lower end of the reinjection rigid straight pipe 10 is connected to the top of the reinjection rigid elbow 12 through a vertical expansion joint 11, and the bottom of the reinjection rigid elbow 12 is connected to one end of the submarine transmission pipeline 14 through a horizontal expansion joint 13, wherein the reinjection rigid straight pipe 10 is located below the sea surface. The other end of the submarine transmission pipeline 14 is connected to the submarine pressure-resistant hydrogen storage tank 15. During operation, the gaseous hydrogen pressurized by the hydrogen pressurization reinjection module will reach the submarine pressure-resistant hydrogen storage tank 15 through the hydrogen reinjection flexible pipe 7, the cylindrical buoy 8, the reinjection rigid straight pipe 10, the vertical expansion joint 11, the reinjection rigid elbow 12, the horizontal expansion joint 13 and the submarine transmission pipeline 14 in sequence.

[0013] The external transmission pipeline includes a hydrogen transmission hard pipe 17, a hydrogen transmission hose 18, a float 19, and a hydrogen transmission joint 20. The bottom of the hydrogen transmission hard pipe 17 is connected to the hydrogen pressure transmission device 16, and the top is connected to one end of the hydrogen transmission hose 18. The other end of the hydrogen transmission hose 18 is connected to the hydrogen transmission joint 20. The hydrogen transmission hose 18 floats on the water surface under the action of the float 19. During the external transmission operation, the gaseous hydrogen will reach the fuel tank of the transport ship through the hydrogen transmission hard pipe 17, the hydrogen transmission hose 18, and the hydrogen transmission joint 20 in sequence.

[0014] Furthermore, the submarine pressure-resistant hydrogen storage tank 15 is a cylindrical structure, with an opening on its side wall and connected to the submarine delivery pipeline 14, and a hydrogen pressurizing delivery device 16 is provided at the top opening. During operation, hydrogen will enter the tank through the submarine delivery pipeline 14 and be output from the top opening.

[0015] Furthermore, the outer diameter of the floating foundation 1 is 40 to 50 m, the draft is 10 to 15 m, and the diameter of the circular moon pool is 15 to 20 m. The top of the wind power module 2 is a traditional horizontal axis wind turbine, and the bottom is a Y-shaped rigid support frame, which is welded to both sides of the moon pool on the upper deck of the floating foundation 1. The seawater desalination and water electrolysis module 4 and the hydrogen pressurization re-injection module 6 are arranged on the decks on both sides of the moon pool of the floating foundation 1.

[0016] Furthermore, in the reinjection pipeline, the cylindrical buoy 8 is specifically located in the middle of the moon pool of the floating foundation 1.

[0017] Furthermore, the offshore floating wind power hydrogen production and filling station is applied to the ocean area with a water depth ranging from 0 to 200 m. The seabed pressure-resistant hydrogen storage tank 15 can withstand a water pressure of 2 MPa and is positioned by a tensioned mooring system.

[0018] Furthermore, the hydrogen delivery hard pipe 17 is located below the sea surface to offset the water pressure.

[0019] A method for operating an offshore floating wind power hydrogen production and filling station comprises the following steps:

[0020] Under actual sea conditions, the electric energy generated by the wind power module 2 is used to electrolyze water to obtain gaseous hydrogen through the offshore floating wind power hydrogen production and filling station (the electric energy generated by the wind power module 2 is transmitted to the seawater desalination and water electrolysis module 4 via the cable 3, and the electrolysis operation is carried out to obtain hydrogen), and the gaseous hydrogen is pressurized by the hydrogen pressurization reinjection module and then transported to the seabed pressure-resistant hydrogen storage tank 15 through the reinjection pipeline.

[0021] When the transport ship needs to be refueled, the transport ship approaches the buoy 19 on the top of the seabed pressure-resistant hydrogen storage tank 15, uses the bow crane to salvage it and connects the hydrogen external transmission connector 20 to the ship's fuel tank, then opens the valve on the transport ship, and the hydrogen will be transported to the ship's fuel tank via the hydrogen pressurized transmission device 16, the hydrogen transmission hard pipe 17, the hydrogen transmission hose 18 and the hydrogen external transmission connector 20.

[0022] Furthermore, the transport ship needs to have a dynamic positioning device, and the bow is provided with a hydrogen receiving end extending outward.

[0023] Furthermore, the diameter of the reinjection rigid straight pipe 10 is 3 to 5 inches, the diameter of the hydrogen delivery hose 18 is 5 to 7 inches; the diameter of the hydrogen delivery rigid pipe 17 is 5 to 7 inches, and the top of the hydrogen external transmission rigid pipe is less than 10m from the water surface.

[0024] The beneficial effects of the present invention are:

[0025] (1) The present invention has independent ocean wind energy acquisition and hydrogen filling functions.

[0026] (2) The pressure-resistant hydrogen storage tank of the present invention is arranged on the seabed and keeps a certain distance from the upper floating body, which is conducive to isolating oxygen and ensuring safe operation.

[0027] (3) The present invention uses a mid-water buoy to support the underwater reinjection pipeline to isolate the impact of the vertical movement of the platform on the top of the pipeline. The buoy is located in the moon pool in the middle of the platform to protect the joint from external fluid loads.

[0028] (4) The present invention uses pressurized reinjection of gaseous hydrogen, and there is no need to set up a hydrogen liquefaction device.

[0029] (5) The present invention adopts a large-diameter external transmission pipeline, which is conducive to quickly completing the external transmission operation.

[0030] (6) The top of the external transmission rigid pipe of the present invention is close to the water surface to prevent the external water pressure from causing pipeline deformation and affecting hydrogen transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall layout of the present invention.

[0032] Figure 2 It is a schematic diagram of different processes during the operation of the present invention. Figure 2 (a) shows the transport vessel approaching the bunkering device; Figure 2 (b) is the bow crane used to salvage the external transmission joint; Figure 2 (c) in the figure is the connection between the external transmission connector and the receiving end to carry out the hydrogen external transmission operation; Figure 2 (d) in the figure shows that after the external transmission is completed, the external transmission connector is disconnected from the receiving end and the transport ship leaves.

[0033] In the figure: 1 floating foundation; 2 wind power module; 3 cable; 4 seawater desalination and water electrolysis module; 5 hydrogen transmission steel pipe; 6 hydrogen pressure reinjection module; 7 hydrogen reinjection flexible pipe; 8 cylindrical buoy; 9 horizontal positioning spring; 10 reinjection rigid straight pipe; 11 vertical expansion joint; 12 reinjection rigid elbow; 13 horizontal expansion joint; 14 submarine transmission pipeline; 15 submarine pressure-resistant hydrogen storage tank; 16 hydrogen pressure transmission device; 17 hydrogen transmission hard pipe; 18 hydrogen transmission hose; 19 buoy; 20 hydrogen external transmission joint; 21 anchor winch; 22 mooring cable; 23 submarine foundation. DETAILED DESCRIPTION

[0034] The following is a detailed description of the method of using the present invention.

[0035] An offshore floating wind power hydrogen production and filling station, the offshore floating wind power hydrogen production and filling station comprises a floating wind power hydrogen production platform, a reinjection pipeline, a seabed pressure-resistant hydrogen storage tank 11 and a plurality of mooring cables and a transmission pipeline. Specifically:

[0036] An offshore floating wind power hydrogen production and filling station comprises a floating wind power hydrogen production platform, a reinjection pipeline, a seabed pressure-resistant hydrogen storage tank 15, an external transmission pipeline and a plurality of mooring cables and transmission pipelines.

[0037] The wind power hydrogen production platform is composed of a cylindrical floating foundation 1 with a circular moon pool in the middle, a wind power module 2, two cables 3, a seawater desalination and water electrolysis module 4, a hydrogen delivery steel pipe 5, a hydrogen pressurized reinjection module 6, several anchor machines 21, mooring cables 22 and a seabed foundation 23. The outer diameter of the floating foundation 1 is 40 to 50m, the draft is 10 to 15m, and the diameter of the middle moon pool is 15 to 20m. The anchor machine is arranged on the deck of the floating foundation 1, and the floating foundation 1 is positioned by tightening the mooring cable 22. The top of the wind power module 2 is a traditional horizontal axis wind turbine, and the bottom is a Y-shaped rigid support frame, which is welded to both sides of the moon pool on the upper deck of the floating foundation. The desalination and water electrolysis module 4 and the hydrogen pressurized reinjection module 6 are arranged on the decks on both sides of the moon pool of the floating foundation 1. The current generated by the wind power module 2 is supplied to the desalination and water electrolysis module 4 and the hydrogen pressurized reinjection module 6 through two cables. The oxygen obtained by the module 4 is directly discharged, and the hydrogen is directly transported to the module 6 by the transport steel pipe 5 for pressurization and then transported to the reinjection flexible pipe 7.

[0038] The reinjection pipeline is composed of a reinjection flexible pipe 7, a cylindrical buoy 8, a reinjection rigid straight pipe 10, a vertical expansion joint 11, a reinjection rigid elbow pipe 12, a horizontal expansion joint 13, a submarine transmission pipeline 14 and a plurality of positioning springs 9. The cylindrical buoy 8 is located in the middle of the moon pool of the floating foundation 1 and is connected to the wall of the moon pool of the floating foundation by the positioning spring 9. One end of the reinjection flexible pipe 7 is connected to the module 6, and the other end passes through the cylindrical buoy 8 and is connected to the reinjection rigid straight pipe 10 below. The lower end of the reinjection rigid straight pipe 10 is connected to the top of the reinjection rigid elbow pipe 12 through the vertical expansion joint 11, and the bottom of the reinjection rigid elbow pipe 12 is connected to the submarine transmission pipeline 14 through a horizontal expansion joint 13. The other end of the submarine transmission pipeline 14 is connected to a submarine pressure-resistant hydrogen storage tank 15. During operation, the pressurized gaseous hydrogen will sequentially pass through the flexible pipe 7, the buoy 8, the rigid straight pipe 10, the vertical expansion joint 11, the rigid curved pipe 12, the horizontal expansion joint 13 and the submarine transmission pipeline 14 to reach the submarine pressure-resistant hydrogen storage tank 15.

[0039] The seabed pressure-resistant hydrogen storage tank 15 is cylindrical, with an opening on its side wall connected to the seabed delivery pipeline 14, and a hydrogen pressurizing delivery device 16 at its top opening. During operation, hydrogen will enter the tank through the pipeline 14 and be output from the top opening.

[0040] The external transmission pipeline comprises a hydrogen transmission hard pipe 17, two hydrogen transmission hoses 18, a float 19, and a hydrogen transmission joint 20. The bottom of a hydrogen transmission hard pipe 17 is connected to the hydrogen pressure transmission device 16, and the top is connected to the hydrogen transmission hose 18. The other end of the hydrogen transmission hose 18 is connected to the hydrogen transmission joint 20, and floats on the water surface under the action of the float 19. During the external transmission operation, the gaseous hydrogen will pass through the device 17, the transmission hose 18, and the hydrogen transmission joint 20 in sequence to reach the fuel tank of the transport ship.

[0041] A method for operating an offshore floating wind power hydrogen production and filling station comprises the following steps:

[0042] In the hydrogen production and storage stage:

[0043] The wind power module 2 generates current, which is used to supply power to the desalination and water electrolysis module 4 through the cable 3 and perform water electrolysis operation. After that, the oxygen is directly discharged, and the hydrogen is directly transported to the module 6 through the transport steel pipe 5 and then transported to the reinjection flexible pipe 7 after being pressurized. Then, it passes through the rigid straight pipe 10, the vertical expansion joint 11, the rigid curved pipe 12, the horizontal expansion joint 13 and the submarine transport pipeline 14 in sequence to reach the submarine pressure-resistant hydrogen storage tank 15.

[0044] During the hydrogen export stage:

[0045] When a transport ship needs to refuel with hydrogen, it should first approach the refueling device. Figure 2 (a) shown.

[0046] The hydrogen export connector 20 floating on the sea is salvaged by the bow crane of the transport ship. Figure 2 (b) as shown.

[0047] The crane tightens the suspension line, and the hydrogen transmission connector 20 is connected to the hydrogen receiving end at the bow. Then the hydrogen pressure transmission device 16 pressurizes the hydrogen and transmits it to the ship's fuel tank through the hydrogen transmission hard pipe 17 and the hydrogen transmission hose 16. Figure 2 (c) as shown.

[0048] After the export operation is completed, the hydrogen export connector 20 is disconnected from the hydrogen receiving end at the bow, and the transport ship sails away.

[0049] The above-described embodiments merely express the implementation methods of the present invention, but they should not be understood as limiting the scope of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An offshore floating wind power hydrogen production and filling station, characterized in that: The offshore floating wind power hydrogen production and filling station comprises a floating wind power hydrogen production platform, a reinjection pipeline, a seabed pressure-resistant hydrogen storage tank (15), and an external transmission pipeline; the wind power hydrogen production platform comprises a floating foundation (1), a wind power module (2), a seawater desalination and water electrolysis module (4), a hydrogen transmission steel pipe (5), and a hydrogen pressurized reinjection module (6); the current generated by the wind power module (2) is used to power the seawater desalination and water electrolysis module (4) and the hydrogen pressurized reinjection module (6) through a cable (3); the seawater desalination and water electrolysis module (4) electrolyzes water to obtain hydrogen and oxygen, and the oxygen is directly discharged; the hydrogen is transported to the hydrogen pressurized reinjection module (6) through the hydrogen transmission steel pipe (5) for pressurization, and then transported to the hydrogen reinjection flexible pipe (7) of the reinjection pipeline, and then transported to the seabed pressure-resistant hydrogen storage tank (15) through the reinjection pipeline; during operation, the hydrogen is connected to a transport ship through the external transmission pipeline on the top of the seabed pressure-resistant hydrogen storage tank (15).

2. The offshore floating wind power hydrogen production and filling station according to claim 1, characterized in that: The floating wind power hydrogen production platform is: The floating foundation (1) is a cylindrical structure with a circular moon pool in the middle and a deck on the upper surface; the wind power module (2) has a horizontal axis fan on the top and is fixed on the deck at the bottom; the seawater desalination and water electrolysis module (4) and the hydrogen pressurization reinjection module (6) are arranged on the deck; The wind power hydrogen production platform further comprises a plurality of anchor machines (21), mooring cables (22) and a seabed foundation (23). The anchor machines (21) are arranged on the deck, the anchor machines (21) are connected to the seabed foundation (23) via the anchor machines (21), and the floating foundation (1) is positioned by tightening the mooring cables (22).

3. The offshore floating wind power hydrogen production and filling station according to claim 1, characterized in that: The reinjection pipeline comprises a reinjection flexible pipe (7), a cylindrical buoy (8), a reinjection rigid straight pipe (10), a vertical expansion joint (11), a reinjection rigid curved pipe (12), a horizontal expansion joint (13), a submarine transmission pipeline (14) and a plurality of positioning springs (9); specifically: The cylindrical buoy (8) is located in the middle of the moon pool of the floating foundation (1) and is connected to the wall of the moon pool of the floating foundation by a positioning spring (9); one end of the reinjection flexible pipe (7) is connected to the hydrogen pressurized reinjection module (6), and the other end passes through the cylindrical buoy (8) and is connected to the reinjection rigid straight pipe (10) below; the lower end of the reinjection rigid straight pipe (10) is connected to the top of the reinjection rigid curved pipe (12) via a vertical expansion joint (11), and the bottom of the reinjection rigid curved pipe (12) is connected to one end of the submarine transmission pipeline (14) via a horizontal expansion joint (13); During operation, the gaseous hydrogen pressurized by the hydrogen pressurization and reinjection module will sequentially pass through the hydrogen reinjection flexible pipe (7), the cylindrical buoy (8), the reinjection rigid straight pipe (10), the vertical expansion joint (11), the reinjection rigid curved pipe (12), the horizontal expansion joint (13) and the submarine transmission pipeline (14) to reach the submarine pressure-resistant hydrogen storage tank (15).

4. The offshore floating wind power hydrogen production and filling station according to claim 1, characterized in that: The external transmission pipeline comprises a hydrogen transmission hard pipe (17), a hydrogen transmission hose (18), a floating ball (19), and a hydrogen transmission joint (20); the bottom of the hydrogen transmission hard pipe (17) is connected to the hydrogen pressure transmission device (16), the top is connected to one end of the hydrogen transmission hose (18), the other end of the hydrogen transmission hose (18) is connected to the hydrogen transmission joint (20), and the hydrogen transmission hose (18) floats on the water surface under the action of the floating ball (19); during the external transmission operation, the gaseous hydrogen will sequentially pass through the hydrogen transmission hard pipe (17), the hydrogen transmission hose (18), and the hydrogen transmission joint (20) to reach the fuel tank of the transport ship.

5. The offshore floating wind power hydrogen production and filling station according to claim 1, characterized in that: The seabed pressure-resistant hydrogen storage tank (15) is a cylindrical structure, the side wall of which is provided with an opening and connected to the seabed delivery pipeline (14), and a hydrogen pressurizing delivery device (16) is provided at the top opening position.

6. The offshore floating wind power hydrogen production and filling station according to claim 1, characterized in that: In the reinjection pipeline, the cylindrical buoy (8) is specifically located in the middle of the moon pool of the floating foundation (1).

7. The offshore floating wind power hydrogen production and filling station according to claim 1, characterized in that: The offshore floating wind power hydrogen production and filling station is applied to the ocean area with a water depth ranging from 0 to 200 m. The seabed pressure-resistant hydrogen storage tank (15) can withstand a water pressure of 2 MPa and is positioned by a tensioned mooring system.

8. A method for operating an offshore floating wind power hydrogen production and filling station according to any one of claims 1 to 7, characterized in that: The following steps are involved: Under actual sea conditions, the electric energy generated by the wind power module (2) is used to electrolyze water to obtain gaseous hydrogen through an offshore floating wind power hydrogen production and filling station, and the gaseous hydrogen is pressurized by a hydrogen pressurization and reinjection module and then transported to a seabed pressure-resistant hydrogen storage tank (15) through a reinjection pipeline; When the transport ship needs to be refueled, the transport ship approaches the buoy (19), connects the hydrogen export connector (20) to the ship's fuel tank, and then opens the valve. The hydrogen is then transported to the ship's fuel tank via the hydrogen pressure transport device (16), the hydrogen transport hard pipe (17), the hydrogen transport hose (18), and the hydrogen export connector (20).

9. The method of operating an offshore floating wind power hydrogen production and filling station according to claim 8, characterized in that: The transport ship needs to have a dynamic positioning device, and the bow is provided with a hydrogen receiving end extending outward.

10. The method of operating an offshore floating wind power hydrogen production and filling station according to claim 8, characterized in that: The top of the hydrogen delivery hard pipe (17) is less than 10m away from the water surface.

Images