Offshore wind power in-situ hydrogen production semi-submersible floating platform

Abstract

The offshore wind power in-situ hydrogen production semi-submersible floating platform comprises a semi-submersible floating body structure, a wind power generation system and a hydrogen production and storage system, the semi-submersible floating body structure comprises a plurality of first buoys, heaving plates, second buoys, anchor chains and a hydrogen production deck, the heaving plates correspond to the first buoys one to one, and the heaving plates correspond to the second buoys one to one; the heaving plates are respectively arranged at the bottoms of the corresponding first buoys, the second buoy is connected with the heaving plates, and the hydrogen production deck is arranged at the tops of the first buoys; the wind power generation system comprises at least one wind power generator which is arranged on the first buoy; the hydrogen production and storage system is arranged on the hydrogen production deck, and the wind driven generator is connected with the hydrogen production and storage system so as to supply power to the hydrogen production and storage system. According to the offshore wind power in-situ hydrogen production semi-submersible floating platform, the hydrogen production and storage system and the wind power generation system are integrated into the semi-submersible floating body structure, on-site utilization and storage of offshore wind energy can be achieved, and therefore the situation that power transmission of an offshore wind power unit is difficult is improved, and the power generation utilization rate is increased.

Description

Technical Field

[0001] The present application relates to the field of offshore renewable energy technology, and more specifically, to a semi-submersible floating platform for in-situ hydrogen production from offshore wind power. Background Art

[0002] One of the challenges in developing existing floating offshore wind platform technology is long-distance power transmission. Power from deep offshore sources is particularly difficult to transmit to land, and even if it is possible, the cost is prohibitive. Furthermore, offshore wind turbines are likely to generate some wasted power, and finding ways to more efficiently utilize this waste and mitigate platform construction costs is also a major industry challenge.

[0003] Therefore, how to improve the difficulty of power transmission of offshore wind turbines and increase the power generation utilization rate of wind turbines has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a semi-submersible floating platform for in-situ hydrogen production of offshore wind power, so as to improve the difficulty of power transmission of deep-sea wind turbines and improve the power generation utilization rate of wind turbines.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A semi-submersible floating platform for in-situ hydrogen production of offshore wind power, comprising:

[0007] A semi-submersible floating structure, comprising a first buoy, a heave plate, a second buoy, an anchor chain, and a hydrogen production deck. The first buoy comprises a plurality of buoys, each of the heave plates corresponding to the first buoys one-to-one, each heave plate being disposed at the bottom of a corresponding first buoy. The second buoy connects the heave plates. The anchor chain is disposed at the bottom of the heave plates for connecting to anchoring equipment on the seabed. The hydrogen production deck is disposed on top of the first buoy.

[0008] A wind power generation system, the wind power generation system comprising at least one wind turbine, the wind turbine being disposed on the first buoy;

[0009] A hydrogen production and storage system is provided on the hydrogen production deck, and the wind turbine is connected to the hydrogen production and storage system to supply power to the hydrogen production and storage system.

[0010] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, a cable channel for cables to pass through is provided between the wind turbine and the hydrogen production and storage system, the cable channel is connected to the hydrogen production deck, and the hydrogen production deck has a cable passage cavity for cables to pass through.

[0011] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, the second buoy includes a plurality of connecting parts, the first ends of the connecting parts intersect with each other, and the second ends of the connecting parts are respectively connected to each of the heave plates.

[0012] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, the second buoy includes a first connection part, a second connection part and a third connection part, and a space for liquid hydrogen transport ships to dock is formed between any two of the first connection part, the second connection part and the third connection part.

[0013] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, a supporting structure is provided on the second buoy, and the supporting structure is connected to the hydrogen production deck and the cable channel.

[0014] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, the hydrogen production deck is provided with at least one liquid hydrogen external transmission interface, the liquid hydrogen external transmission interface is connected to the hydrogen production and storage system through a liquid hydrogen output pipeline, the hydrogen production deck is provided with a liquid hydrogen output pipeline channel, and the liquid hydrogen external transmission interface is arranged at the bottom or side of the hydrogen production deck.

[0015] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, the liquid hydrogen export interface includes at least two, at least one of which is arranged on the side of the hydrogen production deck, and at least one of which is arranged on the bottom of the hydrogen production deck.

[0016] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, the hydrogen production and storage system includes a hydrogen production component and a hydrogen storage component, the hydrogen production component is connected to the hydrogen storage component, and the liquid hydrogen output interface is connected to the hydrogen storage component.

[0017] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, for each of the heave plates, the anchor chains include a plurality of anchor chains, and each of the anchor chains is arranged at intervals along the circumference of the heave plate.

[0018] Optionally, in the above-mentioned offshore wind power in-situ hydrogen production semi-submersible floating platform, the water source of the hydrogen production and storage system comes from the sea area where the offshore wind power in-situ hydrogen production semi-submersible floating platform is located or the ballast tank water of the first buoy.

[0019] It can be seen from the above scheme that the offshore wind power in-situ hydrogen production semi-submersible floating platform disclosed in the present application integrates the hydrogen production and storage system and the wind power generation system into the semi-submersible floating structure, and supplies power to the hydrogen production and storage system through the wind power generation system to realize hydrogen production by the hydrogen production and storage system. The offshore wind power in-situ hydrogen production semi-submersible floating platform integrates the wind power hydrogen production process, and can realize on-site utilization and storage of offshore wind energy, thereby improving the difficulty of power transmission of offshore wind turbines, reducing losses during power transmission, and improving the power generation utilization rate of wind turbines, which is conducive to the efficient development and comprehensive utilization of offshore wind energy resources; the second buoy connects the various heave plates into a whole to form a damping system, which can reduce the heave motion amplitude of the semi-submersible floating structure, enhance the wind resistance of the offshore wind power in-situ hydrogen production semi-submersible floating platform, and ensure the smooth operation of the wind power generation system and the hydrogen production and storage system; in the form of hydrogen energy, the platform can realize the efficient storage and transportation of green energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 Schematic diagram of the structure of the offshore wind power in-situ hydrogen production semi-submersible floating platform disclosed in the embodiment of this application Figure 1 ;

[0022] Figure 2 Schematic diagram of the structure of the offshore wind power in-situ hydrogen production semi-submersible floating platform disclosed in the embodiment of this application Figure 2 ;

[0023] Figure 3 Schematic diagram of the structure of the offshore wind power in-situ hydrogen production semi-submersible floating platform disclosed in the embodiment of this application Figure 3 ;

[0024] Figure 4 Schematic diagram of the structure of the offshore wind power in-situ hydrogen production semi-submersible floating platform disclosed in the embodiment of this application Figure 4 ;

[0025] Figure 5 Schematic diagram of the structure of the offshore wind power in-situ hydrogen production semi-submersible floating platform disclosed in the embodiment of this application Figure 5 ;

[0026] Figure 6 for Figure 3 A partial enlarged view of .

[0027] Among them, 100 is a semi-submersible floating structure, 110 is a first buoy, 120 is a heave plate, 121 is a water intake, 130 is a second buoy, 131 is a first connection part, 132 is a second connection part, 133 is a third connection part, 140 is an anchor chain, 150 is a hydrogen production deck, and 160 is a supporting structure;

[0028] 200 is a wind power generation system, 210 is a wind turbine generator, and 220 is a cable channel;

[0029] 300 is the hydrogen production and storage system, and 310 is the liquid hydrogen transmission interface. DETAILED DESCRIPTION

[0030] The core of this application is to disclose a semi-submersible floating platform for in-situ hydrogen production of offshore wind power, so as to improve the power transmission difficulties of offshore generator sets and improve the power generation utilization rate of wind turbine sets.

[0031] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0032] like Figure 1 and Figure 2 As shown, an embodiment of the present application discloses a semi-submersible floating platform for in-situ hydrogen production of offshore wind power, including a semi-submersible floating structure 100, a wind power generation system 200 and a hydrogen production and storage system 300, wherein the hydrogen production and storage system 300 is preferably a seawater electrolysis hydrogen production and storage system, and the wind power generation system 200 is connected to the hydrogen production and storage system 300 to supply power to the hydrogen production and storage system 300.

[0033] like Figure 1 As shown, the semi-submersible floating structure 100 includes a first buoy 110, a heave plate 120, a second buoy 130, an anchor chain 140, and a hydrogen production deck 150. The first buoy 110 includes multiple heave plates 120, each corresponding to one of the first buoys 110. Each heave plate 120 is disposed at the bottom of the corresponding first buoy 110. The heave plates 120 are preferably disc-shaped and are concentrically connected to the corresponding first buoy 110. The second buoy 130 connects the heave plates 120, integrating them into a single unit to form a damping system that improves the heave damping coefficient of the semi-submersible floating structure 100 and enhances its wind and wave resistance. The anchor chain 140 is disposed at the bottom of the heave plates 120 for connecting to seabed anchoring equipment to provide the necessary mooring rigidity. The hydrogen production deck 150 is disposed on top of the first buoy 110.

[0034] The wind power generation system 200 includes at least one wind turbine 210, which is arranged on the first buoy 110. The hydrogen production and storage system 300 is arranged on the hydrogen production deck 150. The wind turbine 210 is connected to the hydrogen production and storage system 300 to supply power to the hydrogen production and storage system 300. It should be noted that the hydrogen production and storage system 300 is an integrated water electrolysis hydrogen production and storage system based on seawater, which has hydrogen production and storage functions. Its specific structural composition can refer to the existing hydrogen production and storage system and will not be repeated here. After the liquid hydrogen produced by the hydrogen production and storage system 300 reaches a certain reserve, it is pumped by the liquid hydrogen transport ship to the hydrogen storage container of the liquid hydrogen transport ship and transported to land for application in various fields.

[0035] The offshore wind power in-situ hydrogen production semi-submersible floating platform disclosed in the embodiment of the present application integrates a hydrogen production and storage system 300 and a wind power generation system 200 into a semi-submersible floating structure 100. Power is supplied to the hydrogen production and storage system 300 through the wind power generation system 200 to realize hydrogen production by the hydrogen production and storage system 300. The offshore wind power in-situ hydrogen production semi-submersible floating platform integrates wind power hydrogen production technology, can realize on-site utilization and storage of offshore wind energy, thereby improving the difficulty of power transmission of offshore wind turbines, reducing losses during power transmission, and improving the power generation utilization rate of wind turbines, which is conducive to the efficient development and comprehensive utilization of offshore wind energy resources; the second buoy 130 connects the various heave plates 120 into a whole to form a damping system, which can reduce the heave motion amplitude of the semi-submersible floating structure 100, enhance the wind resistance of the offshore wind power in-situ hydrogen production semi-submersible floating platform, and ensure the smooth operation of the wind power generation system 200 and the hydrogen production and storage system 300; in the form of hydrogen energy, the platform can realize the efficient storage and transportation of green energy.

[0036] Furthermore, if Figure 1 As shown, a cable channel 220 for cables to pass through is provided between the wind turbine 210 and the hydrogen production and storage system 300. One end of the cable channel 220 is connected to the first buoy 110 supporting the wind turbine 210, and the other end is connected to the hydrogen production deck 150. This connects the tops of the first buoys 110 into a single unit, improving the structural strength and stability of the offshore wind power in-situ hydrogen production semi-submersible floating platform, enhancing the platform's ability to withstand wind and wave loads, and thus extending the platform's service life. The hydrogen production deck 150 has a cable passage cavity connected to the cable channel 220, allowing the cables to connect to the hydrogen production and storage system 300 and supply power to the hydrogen production and storage system 300. The provision of the cable channel 220 can reduce power transmission losses.

[0037] Furthermore, if Figure 2 and Figure 4As shown, the second buoy 130 includes multiple connecting portions, each of which has a first end intersecting with a second end connected to a respective heave plate 120. This structure of the second buoy 130 provides a resting space for the liquid hydrogen transport vessel, facilitating the transport of liquid hydrogen produced by the hydrogen production and storage system 300. It should be noted that the second buoy 130 is not limited to the above structure; the second buoy 130 may include multiple connecting portions, each of which has two ends connected to two adjacent heave plates 120.

[0038] Furthermore, if Figure 1 and Figure 4 As shown, in some specific embodiments, the second buoy 130 includes a first connection portion 131, a second connection portion 132, and a third connection portion 133. The first ends of the first connection portion 131, the second connection portion 132, and the third connection portion 133 intersect at a center point. The second ends of the first connection portion 131, the second connection portion 132, and the third connection portion 133 are respectively connected to each heave plate 120. A space for the liquid hydrogen transport ship to dock is formed between any two of the first connection portion 131, the second connection portion 132, and the third connection portion 133. Figure 4 and Figure 5 As shown in the figure, the first pontoons 110 include three, and the three first pontoons 110 are arranged in a triangular structure, preferably in an equilateral triangle arrangement with the center point as the center. The wind turbine 210 includes one, which is arranged on one of the first pontoons 110, and the hydrogen production deck 150 is arranged on the top of the other two first pontoons 110. The cable channel 220 is arranged between the first pontoon 110 carrying the wind turbine 210 and the hydrogen production deck 150 to connect the tops of the three first pontoons 110 into a whole. Preferably, the second pontoon 130 is arranged in a Y-shape to match the shape of the liquid hydrogen transport ship, so that the liquid hydrogen transport ship can dock and facilitate the transportation of liquid hydrogen. The second pontoon 130 is preferably formed in an integrated manner to further improve the structural stability.

[0039] Furthermore, to provide support for hydrogen production deck 150, a support structure 160 is provided on second buoy 130. Support structure 160 is preferably a support column. The first end of support structure 160 is connected to the center point where the first connection portion 131, the second connection portion 132, and the third connection portion 133 intersect, and the second end is connected to hydrogen production deck 150 and cable channel 220. In other words, the second end of support structure 160 is connected to the location where hydrogen production deck 150 and cable channel 220 are connected. The center of support structure 160 coincides with the center of heave plate 120, ensuring the vertical strength of the offshore wind power in-situ hydrogen production semi-submersible floating platform and providing stable support for hydrogen production deck 150.

[0040] Furthermore, the hydrogen production and storage system 300 includes a liquid hydrogen output pipeline to transport the liquid hydrogen produced by the hydrogen production and storage system 300. Specifically, a liquid hydrogen output pipeline channel is provided in the hydrogen production deck 150, and at least one liquid hydrogen output interface 310 is provided on the hydrogen production deck 150. The liquid hydrogen output interface 310 is connected to the hydrogen production and storage system 300 through the liquid hydrogen output pipeline. The liquid hydrogen output interface 310 is provided at the bottom or side of the hydrogen production deck 150 to facilitate connection to a liquid hydrogen transport ship.

[0041] Furthermore, in some specific embodiments, Figure 2 As shown, there are at least two liquid hydrogen export ports 310, at least one of which is located on the side of the hydrogen production deck 150, and at least one of which is located on the bottom of the hydrogen production deck 150, to facilitate the transportation of liquid hydrogen by the liquid hydrogen transport ship. The figure shows two liquid hydrogen export ports 310, one located on the side of the hydrogen production deck 150 and the other located on the bottom of the hydrogen production deck 150. This is only an example and can be adjusted according to actual conditions.

[0042] Furthermore, the hydrogen production and storage system 300 includes a hydrogen production component and a hydrogen storage component, the hydrogen production component is connected to the hydrogen storage component, and the liquid hydrogen export interface 310 is connected to the hydrogen storage component. When the liquid hydrogen stored in the hydrogen storage component reaches a certain amount, it is transported out via a liquid hydrogen transport ship.

[0043] Furthermore, if Figure 2 and Figure 3 As shown, each heave plate 120 includes multiple anchor chains 140, each of which is spaced apart along the circumference of the heave plate 120. The lower ends of the anchor chains 140 are connected to anchoring equipment on the seabed, providing the necessary mooring rigidity, thereby limiting the platform's longitudinal and transverse displacements and suppressing its pitching motion, thereby ensuring the stability and reliability of the wind power generation system 200 and hydrogen production and storage system 300. It should be noted that the specific number of anchor chains 140 can be adjusted according to specific sea conditions. The three anchor chains 140 shown in the figure are merely illustrative and not limiting.

[0044] Furthermore, in some specific embodiments, the hydrogen production and storage system 300 preferably produces hydrogen through seawater. The water source of the hydrogen production and storage system 300 can come from the sea area where the offshore wind power in-situ hydrogen production semi-submersible floating platform is located. In this case, the ballast in the first buoy 110 can be water or fixed ballast. Specifically, Figure 3 and Figure 6As shown, a water intake 121 can be provided on the heave plate 120, and a seawater delivery pipeline connected to the water intake 121 is provided in the first buoy 110 and the hydrogen production deck 150. The seawater delivery pipeline is connected to the hydrogen production and storage system 300 to transport seawater to the hydrogen production and storage system 300. Preferably, the water intake 121 is provided on the side of the heave plate 120 at the bottom of the first buoy 110 supporting the hydrogen production deck 150, and the water intake 121 includes one or more channels; one end of the seawater delivery pipeline of the hydrogen production and storage system 300 is connected to the ballast tank of the first buoy 110, and is connected to the hydrogen production and storage system 300 after passing through the channel.

[0045] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0046] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0047] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0048] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the core ideas of this application. It should be noted that for those skilled in the art, without departing from the principles of this application, various improvements and modifications can be made to this application, and such improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. A semi-submersible floating platform for in-situ hydrogen production from offshore wind power, characterized in that: include: A semi-submersible floating structure (100), the semi-submersible floating structure (100) comprising a first buoy (110), a heave plate (120), a second buoy (130), an anchor chain (140) and a hydrogen production deck (150), wherein the first buoy (110) comprises a plurality of heave plates (120) corresponding to the first buoys (110) one by one, each heave plate (120) being arranged at the bottom of the corresponding first buoy (110), the second buoy (130) connecting each heave plate (120), the anchor chain (140) being arranged at the bottom of the heave plate (120) for connecting to anchoring equipment on the seabed, and the hydrogen production deck (150) being arranged at the top of the first buoy (110); A wind power generation system (200), the wind power generation system (200) comprising at least one wind generator (210), the wind generator (210) being arranged on the first buoy (110); A hydrogen production and storage system (300) is provided on the hydrogen production deck (150), and the wind turbine (210) is connected to the hydrogen production and storage system (300) to supply power to the hydrogen production and storage system (300).

2. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to claim 1, characterized in that: A cable channel (220) for cables to pass through is provided between the wind turbine (210) and the hydrogen production and storage system (300), and the cable channel (220) is connected to the hydrogen production deck (150). The hydrogen production deck (150) has a cable passage cavity for cables to pass through.

3. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to claim 2, characterized in that: The second buoy (130) includes a plurality of connecting parts, wherein the first ends of the connecting parts intersect with each other, and the second ends of the connecting parts are respectively connected to the heave plates (120).

4. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to claim 3, characterized in that: The second buoy (130) includes a first connecting portion (131), a second connecting portion (132) and a third connecting portion (133), and a space for a liquid hydrogen transport ship to dock is formed between any two of the first connecting portion (131), the second connecting portion (132) and the third connecting portion (133).

5. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to claim 4, characterized in that: A support structure (160) is provided on the second buoy (130), and the support structure (160) is connected to the hydrogen production deck (150) and the cable channel (220).

6. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to claim 1, characterized in that: The hydrogen production deck (150) is provided with at least one liquid hydrogen output interface (310), and the liquid hydrogen output interface (310) is connected to the hydrogen production and storage system (300) through a liquid hydrogen output pipeline. The hydrogen production deck (150) is provided with a liquid hydrogen output pipeline channel, and the liquid hydrogen output interface (310) is arranged at the bottom or side of the hydrogen production deck (150).

7. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to claim 6, characterized in that: The liquid hydrogen export interface (310) includes at least two, wherein at least one of the liquid hydrogen export interface (310) is arranged on the side of the hydrogen production deck (150), and at least one of the liquid hydrogen export interface (310) is arranged on the bottom of the hydrogen production deck (150).

8. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to claim 6, characterized in that: The hydrogen production and storage system (300) comprises a hydrogen production component and a hydrogen storage component, the hydrogen production component is connected to the hydrogen storage component, and the liquid hydrogen output interface (310) is connected to the hydrogen storage component.

9. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to any one of claims 1 to 8, characterized in that: For each of the heave plates (120), the anchor chains (140) include a plurality of anchor chains (140), and each of the anchor chains (140) is arranged at intervals along the circumference of the heave plate (120).

10. The offshore wind power in-situ hydrogen production semi-submersible floating platform according to any one of claims 1 to 8, characterized in that: The water source of the hydrogen production and storage system (300) comes from the sea area where the offshore wind power in-situ hydrogen production semi-submersible floating platform is located or the ballast tank water of the first buoy (110).

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