Offshore energy island

Abstract

The utility model discloses an offshore energy island, including the float of placing on the sea surface, the power converter and a plurality of energy conversion devices of configuration in the float, and at least one ocean current generator for providing the power required for the energy conversion device, wherein, the float is positioned on the sea surface through at least one positioning pile on the seabed and the cable of the positioning pile connection, the positioning pile is restrained the ocean current generator in the ocean current layer through a cable, the ocean current generator is powered to the energy conversion device through the cable, to output the renewable energy for the ship or land use.

Description

Technical Field

[0001] This utility model relates to the production, utilization and transportation of marine renewable energy, and in particular to a marine energy island. Background Technology

[0002] The ocean contains a large amount of renewable energy, and human beings spare no effort in developing and utilizing these renewable energy sources. For example, they use ocean currents, waves, wind power, solar photovoltaics, etc. to generate electricity, and then use this electricity to drive hydrogen production equipment to produce hydrogen, or to drive seawater desalination equipment to produce fresh water.

[0003] A Taiwanese patent, TWI772775B, discloses a marine energy island device, which is a relatively advanced technology in the field of marine renewable energy production. The patent teaches the use of a floating platform as the marine energy island, on which the aforementioned ocean current, wave, wind, solar photovoltaic and other power generation equipment is installed to generate electricity. The floating platform is also equipped with a hydrogen production device and a seawater desalination device. The electricity generated by the aforementioned power generation equipment can be directly used on the floating platform to drive the hydrogen production device to produce hydrogen and drive the seawater desalination device to produce fresh water.

[0004] According to the teachings of the aforementioned patent, its key technology lies in utilizing a floating platform at sea as a platform for power generation equipment, hydrogen production devices, and seawater desalination devices. This does not occupy land space and allows for direct utilization of ocean current energy, wave energy, wind energy, solar photovoltaic energy, and other resources to generate electricity, hydrogen, and freshwater—renewable energy sources. Furthermore, the technologies related to ocean current power generation, wave energy power generation, wind power generation, solar photovoltaic energy power generation, hydrogen production, and seawater desalination are all applications of prior-existing technologies for the purposes of this patent.

[0005] Because the floating platform is equipped with ocean current and wave energy generation equipment, it must be anchored at sea to withstand the thrust and pull of ocean currents and waves for power generation. Furthermore, the platform also carries wind power generation equipment; the wind pushing the fans to rotate and generate electricity will also generate thrust and pull on the platform. These marine environmental variables make it extremely difficult to position the floating platform on the sea surface, thus requiring urgent improvement. Utility Model Content

[0006] In view of the technical problems existing in the prior art, one objective of this utility model is to provide a marine energy island to improve the stability of the energy floating island on the sea surface.

[0007] In a preferred embodiment, the present invention provides a marine energy island, comprising: a floating platform, at least one positioning pile, an electrically connected power converter and multiple energy conversion devices, and at least one ocean current generator. The floating platform is positioned on the sea surface and provides the power converter and multiple energy conversion devices. The positioning pile is anchored to the seabed and pulls at least one cable to position the floating platform on the sea surface. The ocean current generator is released into the ocean current layer between the seabed and the sea surface and is electrically connected to the power converter via a cable. The positioning pile, via the cable, restrains the ocean current generator in the ocean current layer. The cable extends along the cable to the floating platform and is electrically connected to the power converter. The power converter converts the electricity supplied by the ocean current generator, thereby driving the energy conversion devices to produce renewable energy.

[0008] In a further implementation, a resource storage station is also configured on the floating platform. The energy conversion device includes a hydrogen generator electrically connected to the power converter. The power converter converts the electrical power supplied by the ocean current generator to drive the hydrogen generator. The resource storage station provides at least water resources to the hydrogen generator to drive the hydrogen generator to produce hydrogen as the renewable energy source.

[0009] The energy conversion device further includes a seawater desalination system electrically connected to the power converter, which converts the electrical power supplied by the ocean current generator to drive the seawater desalination system to produce the water resources required by the hydrogen generator.

[0010] The energy conversion device further includes a hydrogen compressor electrically connected to the power converter. The hydrogen compressor receives hydrogen produced by the hydrogen generator to drive the power converter to drive the hydrogen compressor to produce high-pressure hydrogen as the renewable energy source.

[0011] The hydrogen generator produces hydrogen and oxygen by electrolyzing the water resources. The energy conversion device also includes an oxygen recovery unit electrically connected to the power converter, which drives the power converter to drive the oxygen recovery unit to receive oxygen produced by the hydrogen generator as the renewable energy.

[0012] The energy conversion device further includes a liquid ammonia generator electrically connected to the power converter. The resource storage station also provides nitrogen (N2) to the liquid ammonia generator, which receives hydrogen produced by the hydrogen generator to drive the power converter to drive the liquid ammonia generator to produce ammonia and cool the ammonia into liquid ammonia as the renewable energy source.

[0013] The resource storage station is connected to the land by a pipeline for water replenishment. Alternatively, the floating platform may also have a dock for at least one vessel to berth, through which the resource storage station receives water replenishment from the land, and the renewable energy is transported to the land via the vessel.

[0014] In a further embodiment, the energy conversion device includes a methanol generator electrically connected to the power converter, the power converter supplying power to drive the methanol generator, and the hydrogen generator and the resource storage station jointly supplying at least two methanol synthesis substances to the methanol generator to produce methanol as the renewable energy source.

[0015] In a further implementation, the hydrogen generator produces hydrogen and oxygen by electrolyzing the water resources, and the energy conversion device also includes an oxygen recovery unit electrically connected to the power converter, which drives the power converter to drive the oxygen recovery unit to receive oxygen produced by the hydrogen generator as the renewable energy.

[0016] The energy conversion device further includes a liquid hydrogen generator electrically connected to the power converter. The liquid hydrogen generator receives hydrogen produced by the hydrogen generator to drive the power converter to drive the liquid hydrogen generator to reduce the temperature of the hydrogen and produce liquid hydrogen as the renewable energy.

[0017] In a further implementation, the pipeline connecting the resource storage station to the land can also replenish the methanol synthesis material. Alternatively, the resource storage station receives the methanol synthesis material from the land via the ship, and the renewable energy is transported to the land via the ship.

[0018] In a further implementation, the floating platform is also equipped with at least one renewable energy storage device for storing the renewable energy and an AI computing center that can be powered by the energy conversion device; wherein, the AI ​​computing center is equipped with a wireless communication system for transmitting and receiving signals.

[0019] Compared to existing technologies, the ocean current generator of this invention, used for absorbing ocean current energy to generate electricity, is anchored by positioning piles for a positioning platform on the seabed. This allows the ocean current generator to be released into the ocean current layer rather than being placed on the platform. Furthermore, the ocean current generator can be configured into multiple generator units according to the terrain conditions, thereby converting stable and continuous ocean current energy into electricity. In addition, this invention also eliminates the need to install ocean current power generation equipment and wind power generation equipment on the platform, in order to reduce the impact of natural forces pushing and pulling on the platform, and at the same time reduce the load on the platform, thereby improving the stability of the platform when anchored to the sea surface.

[0020] Furthermore, this invention utilizes ocean currents from the seabed to generate electricity, which drives a hydrogen generator on the floating platform to produce hydrogen (H2) through water electrolysis. It also uses a hydrogen compressor, a liquid ammonia generator, a methanol generator, and a liquid hydrogen generator to convert the hydrogen (H2) into renewable energy sources such as high-pressure hydrogen, liquid ammonia, methanol, and liquid hydrogen, which are easy to store and transport. Additionally, it uses an oxygen recovery unit to collect oxygen (O2) produced by water electrolysis. Therefore, this invention has clearly made a contribution to the prior art in terms of both environmental protection and renewable energy production.

[0021] Based on this, the offshore energy island created by this utility model can form an integrated offshore green energy conversion and storage platform, and is easy to set up in a modular manner, especially easy to deploy in offshore wind power or isolated island areas without electricity. It has high scalability, stability and self-sufficiency, and provides an innovative solution for net-zero carbon emissions and marine energy development.

[0022] Please refer to the drawings for further details and the preferred embodiments of this utility model are described below. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the configuration of the marine energy island of this utility model.

[0024] Figure 2 yes Figure 1 The diagram shows the architecture of the device configured on the floating platform.

[0025] Explanation of reference numerals in the attached drawings: 10-Floating platform; 11-Dock; 12-Ship; 20-Power converter; 30-Energy conversion device; 31-Hydrogen generator; 32-Hydrogen compressor; 33-Oxygen recovery unit; 34-Liquid ammonia generator; 35-Methanol generator; 36-Liquid hydrogen generator; 39-Seawater desalination system; 40-Resource storage station; 41-Pipeline; 50-Ocean current generator; 51-Cable; 60-AI computing center; 70-Renewable energy storage device; 72-High-pressure storage unit; 73-Oxygen storage unit; 74-Liquid ammonia storage unit; 75-Methanol storage unit; 76-Liquid hydrogen storage unit; 80-Positioning pile; 81-Cable; 91-Seabed; 92-Sea surface; 93-Ocean current layer. Detailed Implementation

[0026] First, please refer to Figure 1 This invention illustrates a marine energy island, comprising a floating platform 10, a power converter 20 and multiple energy conversion devices 30 mounted on the floating platform 10, at least one positioning pile 80 anchored to the seabed 91, and at least one ocean current generator 50 discharging into the ocean current layer 93 between the seabed 91 and the sea surface 92; furthermore, a resource storage station 40 may be additionally mounted on the floating platform 10. Wherein:

[0027] The floating platform 10 can be constructed using a frame or floating material to form a buoyant island shape, allowing it to float on the sea surface 92 after being equipped with the power converter 20, energy conversion device 30 and resource storage station 40.

[0028] The positioning stake 80, anchored to the seabed 91, serves to position the floating platform 10 on the sea surface 92 by pulling at least one cable 81, and to pull at least one cable 51 to the ocean current generator 50. The cable 81 can be made of high-tensile-strength, corrosion-resistant steel cable or fiber rope. The positioning stake 80 and the cable 81 prevent the floating platform 10 from drifting away from its predetermined position on the sea surface 92, allowing the ocean current generator 50 to be released into the ocean current layer 93 between the seabed 91 and the sea surface 92 to absorb ocean current energy for power generation. The cable 81 also provides a winding route for the cable 51, allowing it to extend along the cable 81 to the floating platform 10 for electrical connection to the power converter 20. This configuration enables the ocean current generator 50 to supply power via the cable 51 to the power converter 20 for conversion, thereby driving the energy conversion device 30 to produce renewable energy. Specifically, only one ocean current generator 50 is required at a minimum, but in practice, multiple generators can be configured depending on the power generation needs.

[0029] Please continue reading. Figure 1 The invention also illustrates multiple energy conversion devices 30, including a seawater desalination system 39 and a hydrogen generator 31 electrically connected to the power converter 20. The power converter 20 converts the electrical power supplied by the ocean current generator 50 to drive the seawater desalination system 39. The seawater desalination system 39 can employ known seawater electrolysis technology to directly electrolyze seawater into fresh water, which serves as the water resource as described in this invention, and can then be directly supplied to the hydrogen generator 31 or stored in the resource storage station 40 for later use by the hydrogen generator 31. The power converter 20 can also drive the hydrogen generator 31 to electrolyze the water resource to produce hydrogen, which serves as the renewable energy source.

[0030] In a modified implementation, the freshwater resources can also be transported via a pipeline 41 or carried by at least one vessel 12 and stored in the resource storage station 40 to supply the hydrogen generator 31. Figure 1 It is understood that the floating platform 10 is equipped with the aforementioned pipe 41, which connects the resource storage station 40 to the land, enabling the supply of water resources and synthetic materials (described in detail later) from the land to the resource storage station 40 for storage. Furthermore, Figure 1 It is also shown that the floating platform 10 may be equipped with a dock 11 for the vessel 12 to berth. The resource storage station 40 receives the water resources and synthetic materials (described in detail later) from the land via the vessel 12.

[0031] Next, please refer to further information. Figure 2 This demonstrates that the present invention is in Figure 1 The diagram showing the device architecture configured on the floating platform 10 illustrates that, in addition to the power converter 20, energy conversion device 30, and resource storage station 40, the floating platform 10 can also be configured with a renewable energy storage device 70. Wherein:

[0032] Figure 2 Further illustrating that the energy conversion device 30, in addition to the aforementioned seawater desalination system 39 and hydrogen generator 31, also includes a hydrogen compressor 32, an oxygen recovery unit 33, a liquid ammonia generator 34, a methanol generator 35, and a liquid hydrogen generator 36, which utilize the hydrogen and oxygen produced by the hydrogen generator 31 to further collect or produce renewable energy of different forms or characteristics. The hydrogen generator 31, hydrogen compressor 32, oxygen recovery unit 33, liquid ammonia generator 34, methanol generator 35, and liquid hydrogen generator 36 respectively... The power converter 20 is electrically connected; correspondingly, the renewable energy storage device 70, in contrast to the energy conversion device 30, is configured with a high-pressure storage device 72 capable of storing compressed hydrogen produced by the hydrogen compressor 32, an oxygen storage device 73 capable of storing oxygen produced by the oxygen recovery device 33, a liquid ammonia storage device 74 capable of storing liquid ammonia produced by the liquid ammonia generator 34, a methanol storage device 75 capable of storing methanol produced by the methanol generator 35, and a liquid hydrogen storage device 76 capable of storing liquid hydrogen produced by the liquid hydrogen generator 36. Further details must be provided regarding:

[0033] The resource storage station 40 can also store nitrogen (N2) supplied from the land and supply the nitrogen (N2) to the liquid ammonia generator 34, so that after receiving hydrogen from the hydrogen generator 31 and nitrogen (N2) supplied by the resource storage station 40, the liquid ammonia generator 34 can produce liquid ammonia (NH3) as a renewable energy source through the synthesis reaction of the following formula (1), and store it in the liquid ammonia storage tank 74:

[0034] N2 + 3H2 2NH3 Equation (1).

[0035] The resource storage station 40 can also store at least two methanol synthesis substances provided by land, and supply at least two of the methanol synthesis substances to the methanol generator 35, so that after the methanol generator 35 receives hydrogen produced from the hydrogen generator 31 and at least two methanol synthesis substances provided by the resource storage station 40, it can produce methanol as the renewable energy source, which is then stored by the methanol storage tank 75.

[0036] In one specific embodiment, at least two of the methanol synthesis materials may comprise hydrogen (H2) and carbon dioxide (CO2), wherein the hydrogen (H2) is provided by the hydrogen generator 31 and the carbon dioxide (CO2) is provided by the resource storage station 40, and the methanol generator 35 may produce methanol (CH3OH) via the synthesis reaction of the following formula (2):

[0037] CO2 + 3H2 → CH3OH + H2O Equation (2).

[0038] In another embodiment, at least two of the methanol synthesis materials may comprise hydrogen (H2) and an organic compound, wherein the hydrogen (H2) is provided by the hydrogen generator 31 and the organic compound is provided by the resource storage station 40, the organic compound comprising an aldehyde (R-CHO), which can be converted into carbon monoxide (CO) and hydrogen (H2) via a recombination or cracking reaction, and the methanol generator 35 can generate methanol (CH3OH) via a synthesis reaction of carbon monoxide (CO) and hydrogen (H2).

[0039] According to the above formulas (2) and (3), the methanol produced by this invention in renewable energy can serve as a carrier for hydrogen (H2) to produce 100% green methanol, making methanol more convenient for transportation.

[0040] In addition, the liquid hydrogen generator 36 is actually a refrigeration device that can reduce the temperature of the liquid hydrogen provided by the hydrogen generator 31, thereby reducing the volume of hydrogen and obtaining the advantage of a low boiling point, which is beneficial for the storage of the liquid hydrogen in the liquid hydrogen storage tank 76.

[0041] The renewable energy stored in the aforementioned renewable energy storage device 70 can also be transported to land via the ship 12.

[0042] For example Figure 2 As shown, Figure 1 The floating platform 10 shown is also equipped with an AI computing center 60 that can be powered by the power converter 20. This AI computing center 60 can receive data to be processed from land, aircraft, or ships using a wireless communication system, and can send the processed data to the land, aircraft, or ships for use. Furthermore, in addition to being powered by the power converter 20, the AI ​​computing center 60 can also be equipped with its own backup power generation and conversion device; all of these fall within the scope of this invention and are described herein.

[0043] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, the present invention should be determined by the claims as defined in the claims statement.

Claims

1. A marine energy island, characterized in that, include: A floating platform, placed on the sea surface and floating; At least one positioning stake is anchored to the seabed and at least one cable is used to position the floating platform on the sea surface; A power converter and multiple energy conversion devices are respectively disposed on the floating platform and electrically connected to each other; and At least one ocean current generator is discharged into the ocean current layer between the seabed and the sea surface, and is electrically connected to the power converter via a cable; The positioning pile is used to restrain the ocean current generator in the ocean current layer via the cable, and the cable extends along the rope to the floating platform and is electrically connected to the power converter. The power converter converts the electricity supplied by the ocean current generator, thereby driving the energy conversion device to produce renewable energy.

2. The marine energy island as described in claim 1, characterized in that, The floating platform is also equipped with a resource storage station. The energy conversion device includes a hydrogen generator electrically connected to the power converter. The power converter converts the electrical power supplied by the ocean current generator to drive the hydrogen generator. The resource storage station provides at least water resources to the hydrogen generator to drive the hydrogen generator to produce hydrogen as the renewable energy source.

3. The marine energy island as described in claim 2, characterized in that, The energy conversion device also includes a seawater desalination system electrically connected to the power converter, which converts the electrical power supplied by the ocean current generator to drive the seawater desalination system to produce the water resources required by the hydrogen generator.

4. The marine energy island as described in claim 2, characterized in that, The energy conversion device also includes a hydrogen compressor electrically connected to the power converter. The hydrogen compressor receives hydrogen produced by the hydrogen generator to drive the power converter to drive the hydrogen compressor to produce high-pressure hydrogen as the renewable energy source.

5. The offshore energy island as described in claim 2, characterized in that, The hydrogen generator produces hydrogen and oxygen by electrolyzing the water resources. The energy conversion device also includes an oxygen recovery unit electrically connected to the power converter, which drives the power converter to drive the oxygen recovery unit to receive oxygen produced by the hydrogen generator as the renewable energy.

6. The offshore energy island as described in claim 2, characterized in that, The energy conversion device also includes a liquid ammonia generator electrically connected to the power converter. The resource storage station also provides nitrogen to the liquid ammonia generator, which receives hydrogen produced by the hydrogen generator to drive the power converter to drive the liquid ammonia generator to produce ammonia and cool the ammonia into liquid ammonia as the renewable energy source.

7. The marine energy island as described in claim 2, characterized in that, The resource storage station is connected to the land by a pipeline that replenishes water resources.

8. The marine energy island as described in claim 2, characterized in that, The floating platform is also equipped with a dock that provides berthing for at least one vessel. The resource storage station receives water supplies from the land via the vessel, and the renewable energy is transported to the land via the vessel.

9. The marine energy island as described in claim 2, characterized in that, The energy conversion device also includes a methanol generator electrically connected to the power converter, the power converter supplying power to drive the methanol generator, and the hydrogen generator and the resource storage station jointly provide at least two methanol synthesis substances to the methanol generator to produce methanol as the renewable energy.

10. The marine energy island as described in claim 9, characterized in that, The hydrogen generator produces hydrogen and oxygen by electrolyzing the water resources. The energy conversion device also includes an oxygen recovery unit electrically connected to the power converter, which drives the power converter to drive the oxygen recovery unit to receive oxygen produced by the hydrogen generator as the renewable energy.

11. The marine energy island as described in claim 9, characterized in that, The resource storage station is connected to the land by a pipeline that supplies at least two of the aforementioned methanol synthesis materials.

12. The marine energy island as described in claim 9, characterized in that, The floating platform is also equipped with a dock for at least one vessel to berth. The resource storage station receives at least two of the methanol synthesis materials from land via the vessel, and the renewable energy is transported to land via the vessel.

13. The marine energy island as described in claim 2, characterized in that, The energy conversion device also includes a liquid hydrogen generator electrically connected to the power converter. The liquid hydrogen generator receives hydrogen produced by the hydrogen generator and drives the power converter to drive the liquid hydrogen generator to reduce the temperature of the hydrogen and produce liquid hydrogen as the renewable energy.

14. The marine energy island as described in any one of claims 1 to 13, characterized in that, The floating platform is also equipped with at least one renewable energy storage device for storing the renewable energy.

15. The marine energy island as described in claim 1, characterized in that, The floating platform is also equipped with an AI computing center that can be powered by the power converter.

16. The marine energy island as described in claim 15, characterized in that, The AI ​​computing center is equipped with a wireless communication system for transmitting and receiving signals.

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