A multi-industry integrated floating equipment based on multi-energy complementarity

Abstract

This invention discloses a multi-industry integrated floating equipment based on multi-energy complementarity, comprising a floating foundation, a large-megawatt horizontal-axis wind turbine generator, a tower, solar photovoltaic panels, an oscillating float-type wave energy device, aquaculture cages, production and living facilities, and a mooring system. The floating foundation supports the superstructure, and the large-megawatt horizontal-axis wind turbine generator is offset at the midpoint of the short side corresponding to the bow of the floating foundation via the tower. The solar photovoltaic panels are arranged on the upper deck. The oscillating float-type wave energy device is deployed between the buoy and the main beam and located around the aquaculture cages. The aquaculture cages are located below the lower deck, forming at least one space in the hollow area of ​​the floating foundation for aquaculture. The production and living facilities are located on the lower deck. The mooring system connects the floating equipment to the seabed. This invention has good seakeeping, high safety, good economy, a wide range of adaptable water depths, and a large effective load. It can utilize multi-energy complementary power generation for deep-sea aquaculture, decomposition reactions, and chemical energy storage.

Description

Technical Field

[0001] This invention relates to marine renewable energy power generation technology and marine industry development technology, and in particular to a floating equipment based on multi-energy complementarity and multi-industry integration. Background Technology

[0002] With the increasing prominence of global energy, resource, and environmental issues, especially the growing severity of global climate change, there is an urgent need to accelerate the green and low-carbon transformation of energy, presenting a development opportunity for marine energy utilization. Marine energy includes sea breezes, waves, and solar radiation. Among these, wind energy is the most maturely applied, with abundant offshore wind resources and broad development prospects. Wave motion contains enormous energy, with high energy density, wide distribution, easy direct utilization, clean and pollution-free operation, and inexhaustible resources. Furthermore, compared to terrestrial photovoltaics, offshore photovoltaics require less land while generating 5%-10% more electricity, due to the open and unobstructed water surface, longer sunshine hours, and reflected sunlight.

[0003] While marine renewable energy holds immense promise, the construction and operation costs of traditional single-energy marine renewable energy equipment are high, and the transmission and utilization of marine renewable energy are challenging. Furthermore, the development of emerging marine industries such as deep-sea aquaculture, offshore hydrogen production, and methane-methanol synthesis faces problems of insufficient energy supply and unreliable offshore platforms. Therefore, the industry urgently needs to develop a simple, wave-resistant, safe, widely applicable, and economically viable floating platform based on multi-energy complementarity, integrating multiple industries. This platform could effectively utilize marine renewable energy while addressing energy supply and space utilization issues in marine industries, significantly contributing to the more efficient and rational development and utilization of my country's marine resources. Summary of the Invention

[0004] The main objective of this invention is to solve the above-mentioned problems and provide a floating equipment based on multi-energy complementarity and multi-industry integration.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-energy complementary, multi-industry integrated floating equipment includes a floating foundation, a large-megawatt horizontal-axis wind turbine generator, a tower, solar photovoltaic panels, an oscillating float-type wave energy device, aquaculture cages, production and living facilities, and a mooring system. The floating foundation supports the superstructure and includes rectangular pontoons, bilge keels, main columns, secondary columns, main beams, secondary beams, a lower deck, inter-deck columns, inter-deck beams, and an upper deck. The bilge keels are located outside the long side of the pontoons and away from the roll center of the floating foundation. The main columns and secondary columns are positioned between the pontoons and the main beam to support the main beam. The secondary beams are arranged above the main beam, and the main beam and secondary beams together form a stable spatial frame. The lower deck is located on this spatial frame. The structure comprises: a lower deck with inter-layer columns supporting the inter-layer beams; an upper deck positioned on the inter-layer beams; a large-megawatt horizontal-axis wind turbine generator offset from the midpoint of the short side of the bow of the floating foundation via the tower for wind power generation; solar photovoltaic panels on the upper deck for photovoltaic power generation; an oscillating buoy-type wave energy device positioned between the buoys and the main beams and around the aquaculture cages for wave energy generation; aquaculture cages positioned below the lower deck, forming at least one aquaculture space in the open area of ​​the floating foundation for fish farming; production and living facilities on the lower deck; and a mooring system connected to the floating foundation to connect it to the seabed and constrain its horizontal movement.

[0007] The floating equipment based on multi-energy complementarity and multi-industry integration (hereinafter also referred to as "floating equipment") of the present invention has at least the following beneficial effects:

[0008] (1) The floating foundation of the present invention is a semi-submersible foundation with good wave resistance, high safety, wide applicability, good economy, wide range of water depth adaptability, and large effective load. Since the pontoon is similar to a catamaran and has a long bilge, the bilge keel set on the pontoon can reduce the roll response of the floating equipment. The present invention provides a reliable marine platform.

[0009] (2) The floating foundation of the present invention has a huge internal space, and deep-sea aquaculture can be carried out by setting up aquaculture cages.

[0010] (3) The extra-long space between the pontoon and the main beam of the floating foundation of the present invention is used to install an oscillating float-type wave energy device. While generating electricity using wave energy, the oscillating float-type wave energy device can reduce the energy of the incident waves and reduce the impact of waves on the life of fish inside the aquaculture cage. In addition, installing the oscillating float-type wave energy device on the outside of the aquaculture cage also facilitates later maintenance.

[0011] (4) The floating foundation of the present invention has upper and lower decks. The upper deck supports a large number of lightweight solar photovoltaic panels for solar power generation. In a preferred embodiment, the upper deck is also equipped with several satellite antennas for constructing a marine communication base station. The lower deck serves as a production and living platform, equipped with production and living facilities. In a preferred embodiment, activities such as fish feeding, fish harvesting, seawater desalination, hydrogen production, hydrogen storage, methane-methanol synthesis, marine communication, environmental monitoring, and recreation can be carried out on it. In addition, in a preferred embodiment, the lower deck is also equipped with a crane and a helicopter landing pad for the transfer of personnel and materials.

[0012] (5) A large-megawatt horizontal axis wind turbine generator is installed on one side of the floating foundation of the present invention, which facilitates installation and maintenance. In addition, wind power generation can complement solar and wave power generation to provide energy supply for production and living facilities.

[0013] (6) In a preferred embodiment, the fish feeding module of the present invention also absorbs a large amount of seawater onto the lower deck while collecting fish, and the seawater after fish separation can be directly used for water electrolysis to produce hydrogen, reducing the power consumption of additional water pumping.

[0014] (7) In a preferred embodiment, the oxygen generated by the electrolytic hydrogen production system in the chemical energy storage module of the present invention can be used to increase oxygen in aquaculture cages when oxygen is insufficient (such as during rainy and hot weather), thereby reducing aquaculture losses.

[0015] (8) In a preferred embodiment, since the solar photovoltaic panel and the oscillating float wave energy device in this invention have a smaller power generation capacity than the large megawatt horizontal axis wind turbine generator set, the electrical energy generated can be used for the impressed current cathodic protection of the floating foundation and mooring system.

[0016] (9) In the preferred embodiment, the restoring stiffness of the mooring can be increased by increasing the weight of the counterweight of the mooring anchor chain and the length of the lying section, so as to enhance the restraint of the mooring system on the movement of the floating equipment. Attached Figure Description

[0017] Figure 1 This is a perspective view of a floating equipment according to a preferred embodiment of the present invention;

[0018] Figure 2 This is a front view of a floating equipment according to a preferred embodiment of the present invention;

[0019] Figure 3 This is a side view of a floating equipment according to a preferred embodiment of the present invention;

[0020] Figure 4 This is a top view of a floating equipment according to a preferred embodiment of the present invention;

[0021] Figure 5This is a schematic diagram of the facilities on the lower deck of the floating equipment according to a preferred embodiment of the present invention;

[0022] Figure 6 This is a three-dimensional structural diagram of the floating equipment according to a preferred embodiment of the present invention after removing the upper deck and its superstructure;

[0023] Figure 7 This is a three-dimensional structural diagram of the floating equipment according to a preferred embodiment of the present invention after removing the lower deck and its superstructure;

[0024] Figure 8 This is a three-dimensional structural diagram of the floating equipment according to a preferred embodiment of the present invention after removing the upper structure of the pontoons;

[0025] The annotations in the attached figures are explained as follows:

[0026] 1-Float, 2-Bill keel, 3-Main column, 4-Secondary column, 5-Main beam, 6-Secondary beam, 7-Lower deck, 8-Inter-deck column, 9-Inter-deck beam, 10-Upper deck, 11-Tower, 12-Solar photovoltaic panel, 13-Horizontal axis wind turbine generator, 14-Oscillating float wave energy device, 15-Aquaculture cage, 16-Central control energy storage module, 17-Environmental monitoring module, 18-Marine communication module, 19-Living and entertainment module, 20-Storage module, 21-Fish feeding and harvesting module, 22-Chemical energy storage module, 23-Transfer module, 24-Satellite antenna, 25-Mooring system;

[0027] 2101 - Feeding and harvesting operation room; 2102 - Auxiliary fish pond; 2103 - Adult fish packing system;

[0028] 2201-Water pumping pipeline, 2202-Seawater filtration system, 2203-Seawater desalination system, 2204-Freshwater storage tank, 2205-Electrolysis hydrogen production system, 2206-Methane and methanol synthesis workshop, 2207-Large temporary storage tank, 2208-Post-processing system;

[0029] 2301 - Crane, 2302 - Helicopter landing pad;

[0030] 2501 - Anchor chain, 2502 - Counterweight. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description.

[0032] It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the purpose of the embodiments of the present invention. Please refer to the accompanying drawings to make the objectives, features, and advantages of the present invention more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the present invention, should still fall within the scope of the technical content disclosed in the present invention.

[0033] It should be noted that the directional terms such as left, right, up, down, top, and bottom used in this embodiment are only relative concepts or are based on the normal use of the product, and should not be considered restrictive. When an element is said to be "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is said to be "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0034] Because the construction and operation and maintenance costs of traditional single-energy marine renewable energy equipment are high, and the transmission and consumption of marine renewable energy are difficult, while the development of emerging marine industries such as deep-sea aquaculture, offshore hydrogen production, and methane-methanol synthesis requires sufficient energy supply and reliable marine platforms, marine renewable energy can be combined with these industries to generate more economic value while greatly reducing input costs.

[0035] Therefore, such as Figure 1-8As shown in the figure, the specific embodiment of the present invention provides a floating equipment for multi-industry integration based on multi-energy complementarity, including a floating foundation, a large-megawatt horizontal-axis wind turbine 13, a tower 11, solar photovoltaic panels 12, an oscillating buoy wave energy device 14, a fish farming cage 15, production and living facilities, and a mooring system 25; the floating foundation is used to support the upper structure, and the floating foundation includes a rectangular floating drum 1, bilge keels 2, main columns 3, secondary columns 4, main beams 5, secondary beams 6, a lower deck 7, interlayer columns 8, interlayer beams 9, and an upper deck 10; the bilge keels 2 are arranged on the outer sides of the long sides of the floating drum 1 and away from the roll center of the floating foundation; both the main columns 3 and the secondary columns 4 are arranged between the floating drum 1 and the main beam 5 and are used to support the main beam 5, the secondary beams 6 are arranged above the main beam 5, and the main beam 5 and the secondary beams 6 together form a stable spatial framework, and the lower deck 7 is arranged above the spatial framework; the interlayer columns 8 are arranged above the lower deck 7 and are used to support the interlayer beams 9, and the upper deck 10 is arranged on the interlayer beams 9; the large-megawatt horizontal-axis wind turbine 13 is offset through the tower 11 to the midpoint of the short side corresponding to the bow of the floating foundation for wind power generation; the solar photovoltaic panels 12 are arranged on the upper deck 10 of the floating foundation for photovoltaic power generation; the oscillating buoy wave energy device 14 is arranged between the floating drum 1 and the main beam 5 around the floating foundation and is located outside the fish farming cage 15 for wave energy generation; the fish farming cage 15 is arranged below the lower deck 7 to form at least one aquaculture space in the hollow area of the floating foundation for fishery aquaculture; the production and living facilities are located on the lower deck 7; the mooring system 25 is connected to the floating foundation and is used to connect the floating foundation to the seabed to restrict its horizontal movement.

[0036] Among them, a large-megawatt horizontal-axis wind turbine generally refers to a horizontal-axis wind turbine with a capacity of more than 20 megawatts.

[0037] The embodiment of the present invention provides a reliable ocean platform, which can not only effectively utilize marine renewable energy but also solve the problems of energy supply and space utilization in the marine industry, and has important significance for the more efficient and reasonable development and utilization of China's marine resources.

[0038] In a preferred embodiment, referring to Figure 8 , the floating drum 1 is in the shape of a "day", and preferably, the cross-sectional width corresponding to the two long sides of the "day"-shaped floating drum is greater than the cross-sectional width corresponding to the three short sides, so as to increase the roll inertia and restoring stiffness; the bilge keels 2 are arranged on the outer sides of the long sides of the floating drum 1 and away from the roll center of the floating foundation to reduce the roll movement of the floating equipment; preferably, the length of the bilge keels 2 is 1 / 24 - 3 / 4 of the long side of the floating drum, and the width is 0.5 meters to 2 meters.

[0039] In a preferred embodiment, as shown in Figure 1-8As shown, the diameter of the main column 3 is greater than that of the secondary column 4. There are a total of 9 main columns 3, including four corner main columns, four side main columns, and one central main column. The four corner main columns are respectively located at the four vertices of the "day" - shaped floating drum 1, the four side main columns are respectively located at the mid - points of the four sides of the "day" - shaped floating drum 1, and the central main column is located at the geometric center of the "day" - shaped floating drum 1 (that is, the central main column is located at the mid - point of the short side of the center of the "day" - shaped floating drum 1); Preferably, two secondary columns 4 are arranged between two adjacent main columns 3 on the long side of the "day" - shaped floating drum 1, and one secondary column 4 is arranged between two adjacent main columns 3 on the short side of the "day" - shaped floating drum 1. Thus, in this preferred embodiment, a total of 12 secondary columns 4 are arranged, which are evenly spaced.

[0040] In a preferred embodiment, referring to Figure 7 , the main beam 5 is in a "field" shape, including the side main beams forming a "square" shape and the middle main beams forming a "cross" shape, and they all rest on the main column 3; The secondary beam 6 is perpendicular to the long side of the floating drum 1 on the horizontal plane and is evenly arranged above the main beam 5 (that is, the secondary beams 6 are parallel to each other and parallel to the short side of the floating drum 1). The main beam 5 and the secondary beam 6 together form a stable space frame; The lower deck 7 is arranged above this space frame (the lower deck 7 is fixedly connected to the secondary beam 6) and is used to arrange production and living facilities; Inter - layer columns 8 are evenly arranged above the lower deck 7 and are used to support the inter - layer beam 9; The diameter of the inter - layer column 8 is smaller than that of the secondary column 4. Except for two adjacent transverse inter - layer columns near the tower barrel 11, the inter - layer beam 9 is arranged on each two longitudinally and transversely adjacent inter - layer columns (that is, as Figure 6 shown, there is no inter - layer beam connected between two adjacent transverse inter - layer columns near the tower barrel 11, that is, the transverse inter - layer beam 9 near the tower barrel 11 is not continuous due to the obstruction of the tower barrel 11), forming a plane frame, and the upper deck 10 is arranged on this plane frame.

[0041] As Figure 6 shown, in a preferred embodiment, the inter - layer column 8 maintains a predetermined distance from the stern to provide sufficient operating space for production and living facilities; The upper deck 10 also maintains a predetermined distance from the stern to provide sufficient operating space for production and living facilities.

[0042] In a preferred embodiment, the bottom of the tower barrel 11 is located on the side main column at the bow, penetrates through the upper deck 10 and the lower deck 7, and is fixedly connected to the main beam 5 and the secondary beam 6 at this place, and is used to support the large - megawatt horizontal - axis wind turbine generator 13, which is convenient for early hoisting and later operation and maintenance.

[0043] In a preferred embodiment, the solar photovoltaic panel 12 includes two parts, a bracket and a photovoltaic panel, and is evenly arranged on the upper deck 10.

[0044] In a preferred embodiment, an oscillating float-type wave energy device 14 is installed on each secondary column 4. The oscillating float-type wave energy device 14 is located near the waterline and relies on gravitational potential wave energy to make ups and downs along the column body of the secondary column 4. Since the secondary columns 4 are located on the outer perimeter of the floating foundation, it is convenient for the later operation and maintenance of the oscillating float-type wave energy device 14. Preferably, the oscillating float-type wave energy device 14 can adjust its inherent motion cycle according to the superior periodic changes of the sea waves to achieve resonance with the waves to maximize motion and generate electricity.

[0045] In a preferred embodiment, the aquaculture cage 15 includes a side net and a bottom net. The bottom of the side net is fixed to the inside of the buoy 1, the top of the side net is fixed to the inside of the side main beam, and the side net is fixed along the height to the columns of the four corner main columns and the four side main columns. The bottom net is set on the bottom surface of the buoy 1, thereby forming at least one enclosed aquaculture space in the hollow area of ​​the floating foundation for fish farming.

[0046] Based on the aforementioned various clean energy sources, activities such as fish feeding, fish harvesting, seawater desalination, hydrogen production, hydrogen storage, methane and methanol synthesis, marine communication, environmental monitoring, and recreation can be carried out on the lower deck 7 of the floating foundation. Figure 5 As shown, in a preferred embodiment, the production and living facilities include eight modules: a central control energy storage module 16, an environmental monitoring module 17, a marine communication module 18, a living and entertainment module 19, a storage module 20, a fish feeding and harvesting module 21, a chemical energy storage module 22, and a transfer module 23. Preferably, a certain space is reserved on the upper deck 10 between the solar photovoltaic panel 12 and the tower 11 for arranging a satellite antenna 24, which is connected to the marine communication module 18.

[0047] In a preferred embodiment, the central control energy storage module 16 on the lower deck is used for the allocation and storage of electricity for the entire floating equipment. The input end of the central control energy storage module 16 is connected to the output ends of the large-megawatt horizontal axis wind turbine generator 13, the oscillating float wave energy device 14, and the solar photovoltaic panel 12 via cables to receive the electrical energy generated by the power generation device. After adjusting the voltage, the output end of the central control energy storage module 16 is connected to the input ends of the other seven modules via cables to transmit electricity. Preferably, the central control energy storage module 16 also includes energy storage devices (such as battery packs), and the output end of the central control energy storage module 16 is also connected to the energy storage devices to store electrical energy in the energy storage devices. For example, during peak electricity consumption, the central control energy storage module 16 can directly distribute all electrical energy to the other seven modules for production and daily life; during off-peak electricity consumption, excess electrical energy can be stored in the battery packs and other energy storage devices of the central control energy storage module 16.

[0048] In a preferred embodiment, the environmental monitoring module 17 on the lower deck 7 is used to perform real-time and long-term monitoring of marine environmental elements and / or marine chemical elements, and to save the monitoring data in a timely manner for processing and analysis or to upload it to land through the marine communication module. For example, the environmental monitoring module 17 can be equipped with corresponding marine monitoring instruments and sensors to perform real-time and long-term monitoring of marine environmental elements (such as water temperature, salinity, ocean current, waves, sea breeze, etc.) and / or marine chemical elements (such as dissolved oxygen, total alkalinity, total phosphorus, total nitrogen, total carbon, etc.), and to save the monitoring data in a timely manner for processing and analysis or to upload it to land through the marine communication module 18.

[0049] In a preferred embodiment, the marine communication module 18 on the lower deck 7 mainly includes communication equipment, an independent power supply system, air conditioning equipment and other supporting equipment. The independent power supply system and the satellite antenna 24 on the upper deck together constitute a marine communication base station. The independent power supply system ensures that the marine communication module 18 is powered for a long time in the event of a sudden power outage.

[0050] In a preferred embodiment, the living and entertainment module 19 on the lower deck 7 can provide staff with the venues and facilities needed for living and entertainment, such as venues and facilities for staff to eat, stay, exercise, relax, and seek medical treatment.

[0051] In a preferred embodiment, the storage module 20 on the lower deck 7 is used to store materials needed for production and daily life, such as fresh water, grain, vegetables, fruits and other daily necessities, as well as various spare parts and components for emergency repairs.

[0052] In a preferred embodiment, the fish feeding and harvesting module 21 on the lower deck 7 is used for feeding and harvesting fish. Preferably, the fish feeding and harvesting module 21 includes a feeding and harvesting operation room 2101, an auxiliary fish pond 2102, and an adult fish packing system 2103. The feeding and harvesting operation room 2101 is equipped with multiple automatic feeders and fish suction pumps, which can realize rapid feeding and harvesting of fish. The collected fish can be temporarily placed in the auxiliary fish pond 2102, and finally packed into boxes for transportation by the adult fish packing system 2103.

[0053] In a preferred embodiment, the chemical energy storage module 22 on the lower deck 7 includes a seawater hydrogen production and methane / methanol synthesis facility for manufacturing clean energy such as hydrogen, methane, and methanol using offshore renewable energy. Preferably, the chemical energy storage module includes a pumping pipeline 2201, a seawater filtration system 2202, a seawater desalination system 2203, a fresh water storage tank 2204, an electrolytic hydrogen production system 2205, a methane / methanol synthesis workshop 2206, a large temporary storage tank 2207, and a post-treatment system 2208. The pumping pipeline 2201 is connected to the seawater filtration system 2202 for pumping seawater and sending it to the seawater filtration system 2202 for filtration; the seawater filtration system 2202 is connected to the seawater desalination system 2203 for filtering seawater and sending it into the seawater desalination system 2203 for desalination; the seawater desalination system 2203 is connected to the fresh water storage tank 2204 for desalinating seawater and sending it into the fresh water storage tank 2204; the fresh water storage tank 2204 is connected to the electrolytic hydrogen production system 2205 for storing the desalinated seawater and sending it into the electrolytic hydrogen production system 2205 to electrolyze the filtered fresh water to produce hydrogen and oxygen; the electrolytic hydrogen production system 2205 is respectively connected to the methane / methanol synthesis workshop 2206 and the large temporary storage tank 2207 for transporting a part of the hydrogen generated by electrolyzing water to the methane / methanol synthesis workshop 2206 for synthesizing methane and methanol, and transporting oxygen and another part of the hydrogen to the large temporary storage tank 2207 for storage respectively; the methane / methanol synthesis workshop 2206 is connected to the large temporary storage tank 2207 for transporting the generated methane and methanol to the large temporary storage tank 2207 for storage respectively; the post-treatment system 2208 is connected to the large temporary storage tank 2207 for separating, purifying, pressurizing or liquefying various chemical gases (in an application example, the target substances are the above gases), and packaging and transporting them out.

[0054] In a preferred embodiment, a crane 2301 and a helicopter landing pad 2302 are provided on the transfer module 23 on the lower deck 7 for the transfer of personnel and materials.

[0055] In a preferred embodiment, referring to Figure 8 , the mooring system 25 is a catenary type, connecting the floating foundation to the seabed to restrict its horizontal movement; preferably, eight mooring anchor chains 2501 are used to connect the floating foundation, four mooring anchor chains 2501 are located at the vertices of the floating foundation, and the other four mooring anchor chains 2501 are respectively located at the midpoints of the bow, stern, left side, and right side of the ship; the fairlead holes of each mooring anchor chain 2501 can be arranged at the bottom of the "day" - shaped buoy 1 or on the column body of the main column 3; several weights 2502 are provided near the starting lying section of each anchor chain 2501 to increase the restoring stiffness of the mooring system.

[0056] In summary, the specific embodiments of this invention provide a multi-industry integrated floating equipment based on multi-energy complementarity. This floating equipment is a semi-submersible structure (wherein all the buoys are below the sea surface, and part of the main column and secondary column are below the sea surface, while the other part is above the sea surface), with good seaworthiness, high safety, wide adaptability to water depth, good economy, and large effective load. It can utilize multi-energy complementary power generation for deep-sea aquaculture, decomposition reactions, and chemical energy storage, making it a reliable marine platform. The embodiments of this invention have high utilization rates of offshore wind fields, wave fields, and solar energy space, generating large amounts of electricity that are mutually complementary, reducing the cost per kilowatt-hour. The power generation facilities are easy to install and maintain. Simultaneously, it solves the electricity problem for offshore aquaculture, cleverly utilizing clean marine energy to produce green hydrogen, methane, and methanol, providing a solution to the problem of marine renewable clean energy consumption, achieving the goal of fully utilizing marine resources and promoting the sustainable development of marine resources.

[0057] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the invention to these descriptions. Any equivalent structural or procedural modifications made based on the description and drawings of this invention, or any direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this invention.

Claims

1. A floating equipment based on multi-energy complementarity and multi-industry integration, characterized in that: It includes a floating foundation, a large-megawatt horizontal-axis wind turbine generator, a tower, solar photovoltaic panels, an oscillating buoy wave energy device, a fish farming cage, production and living facilities, and a mooring system; The floating foundation is used to support the superstructure. The floating foundation includes a rectangular pontoon, bilge keels, main columns, secondary columns, main beams, secondary beams, lower decks, interlayer columns, interlayer beams, and upper decks. The pontoon is in the shape of a Chinese character 'Ri' (日). The cross-sectional width corresponding to the two long sides of the pontoon in the shape of 'Ri' is greater than the cross-sectional width corresponding to the three short sides. The bilge keels are arranged on the outer sides of the two long sides of the pontoon and are far from the roll center of the floating foundation. The length of the bilge keel is 1 / 24 - 3 / 4 of the long side of the pontoon, and the width is 0.5 m to 2 m. The diameter of the main columns is greater than that of the secondary columns. There are 9 main columns in total, including four corner main columns, four side main columns, and one central main column. The four corner main columns are respectively located at the four vertices of the pontoon in the shape of 'Ri'. The four side main columns are respectively located at the midpoints of the four outer sides of the pontoon in the shape of 'Ri'. The central main column is located at the geometric center of the pontoon in the shape of 'Ri'. There are 12 secondary columns in total. Two secondary columns are arranged between two adjacent main columns on the long side of the pontoon, and one secondary column is arranged between two adjacent main columns on the short side of the pontoon. The main beams are in the shape of a Chinese character 'Tian' (田), including side main beams forming a 'Kou' (口) shape and middle main beams forming a 'Shi' (十) shape, and they all rest on the main columns. The secondary beams are perpendicular to the long side of the pontoon in the horizontal plane and are evenly arranged on the upper part of the main beams. The main beams and the secondary beams together form a stable space frame. The lower deck is arranged above the space frame and is fixedly connected to the secondary beams. The interlayer columns are evenly arranged above the lower deck and are used to support the interlayer beams. The diameter of the interlayer columns is smaller than that of the secondary columns. Except for two adjacent transverse interlayer columns near the tower, the interlayer beams are arranged on each two adjacent longitudinal and transverse interlayer columns, forming a plane frame. The upper deck is arranged on the plane frame and on the interlayer beams. Among them, the pontoon is entirely below the sea surface, and a part of the main columns and secondary columns is below the sea surface, and another part is above the sea surface. The large-megawatt horizontal-axis wind turbine generator is offset through the tower to the midpoint of the short side corresponding to the bow of the floating foundation for wind power generation; The solar photovoltaic panels are arranged on the upper deck for photovoltaic power generation; One oscillating buoy wave energy device is installed on each secondary column outside the fish farming cage. The oscillating buoy wave energy device is near the waterline for wave energy power generation; The fish farming cage is arranged below the lower deck, and at least one fish farming space is formed in the hollow area of the floating foundation for fishery farming; The production and living facilities are located on the lower deck and include eight modules: a central control and energy storage module, an environmental monitoring module, a marine communication module, a living and entertainment module, a storage module, a fish feeding and harvesting module, a chemical energy storage module, and a transfer module. The oxygen produced by the electrolysis hydrogen production system in the chemical energy storage module can be used to increase oxygen levels in the aquaculture cages when oxygen is insufficient, thereby reducing aquaculture losses. The fish feeding and harvesting module also absorbs a large amount of seawater onto the lower deck while harvesting fish, and the seawater after fish separation can be directly used for water electrolysis to produce hydrogen. The mooring system is connected to the floating foundation and is used to connect the floating foundation to the seabed to constrain its horizontal movement.

2. The floating equipment based on multi-energy complementarity and multi-industry integration as described in claim 1, characterized in that: The inter-floor columns are at a predetermined distance from the stern to provide sufficient operating space for the production and living facilities; the upper deck is also at a predetermined distance from the stern to provide sufficient operating space for the production and living facilities.

3. The floating equipment based on multi-energy complementarity and multi-industry integration as described in claim 1, characterized in that: The bottom of the tower is located on the side main column at the bow of the ship, passes through the upper deck and the lower deck, and is fixedly connected to the main beam and the secondary beam at that location, in order to support the large megawatt horizontal axis wind turbine generator.

4. The floating equipment based on multi-energy complementarity and multi-industry integration as described in claim 1, characterized in that: The solar photovoltaic panel includes a support frame and photovoltaic panels, which are evenly arranged on the upper deck.

5. The floating equipment based on multi-energy complementarity and multi-industry integration as described in claim 1, characterized in that: The oscillating float-type wave energy device is configured to adjust its inherent motion period according to the superior periodic changes of ocean waves, thereby achieving resonance with the waves to maximize motion and generate electricity.

6. The floating equipment based on multi-energy complementarity and multi-industry integration as described in claim 2, characterized in that: The aquaculture cage includes side netting and bottom netting. The bottom of the side netting is fixed to the inside of the buoy, and the top of the side netting is fixed to the inside of the side main beam. The side netting is fixed along the height to the columns of the four corner main columns and the four side main columns. The bottom netting is set on the bottom of the buoy, thereby forming at least one enclosed aquaculture space in the hollow area of ​​the floating foundation for fish farming.

7. The floating equipment based on multi-energy complementarity and multi-industry integration as described in claim 1, characterized in that: A satellite antenna is also installed on the upper deck, and the satellite antenna is connected to the marine communication module; a certain space is reserved on the upper deck between the solar photovoltaic panel and the tower for the installation of the satellite antenna. The central control energy storage module is used for the allocation and storage of electricity in the entire multi-industry integrated floating equipment. Its input end is connected to the output end of the large-megawatt horizontal axis wind turbine generator, the oscillating float wave energy device, and the solar photovoltaic panel via cables to receive the electrical energy generated by the power generation device. After adjusting the voltage, its output end is connected to the input end of the other seven modules via cables to transmit electricity. The central control energy storage module also includes an energy storage device, and the output end of the central control energy storage module is also connected to the energy storage device to store electrical energy in the energy storage device. The environmental monitoring module is used to monitor marine environmental elements and / or marine chemical elements in real time and over a long period of time, and to save the monitoring data in a timely manner for processing and analysis or to upload it to land through the marine communication module. The marine communication module is equipped with an independent power system, which is used to jointly form a marine communication base station with the satellite antenna. The independent power system ensures that in case of a sudden power outage, it can supply power to the marine communication module for a long time; The living and entertainment module is used to provide venues and facilities required for the staff's living and entertainment; The storage module is used to store materials required for production and living; The fish feeding and harvesting module is used for feeding and harvesting fish; The chemical energy storage module includes seawater hydrogen production and methane / methanol synthesis facilities, which are used to produce hydrogen, methane and methanol by using marine renewable energy; The transfer module is equipped with a crane and a helicopter landing pad, which are used for the transfer of personnel and materials.

8. The floating equipment based on multi-energy complementarity and multi-industry integration as described in claim 1, characterized in that: The mooring system is a catenary type, which connects the floating foundation to the seabed to restrict its horizontal movement; eight mooring anchor chains are used to connect the floating foundation, four are located at the vertices of the floating foundation, and the other four are located at the midpoints of the bow, stern, left side and right side; the fairlead holes of each mooring anchor chain are arranged at the bottom of the "day"-shaped buoy or on the column body of the main column; several weights are arranged near the starting lying section of each mooring anchor chain to increase the restoring stiffness of the mooring system.

9. The floating equipment based on multi-energy complementarity and multi-industry integration as described in claim 7, characterized in that: The chemical energy storage module includes a pumping pipeline, a seawater filtration system, a seawater desalination system, a fresh water storage tank, an electrolytic hydrogen production system, a methane / methanol synthesis workshop, a large temporary storage tank and a post-treatment system; the pumping pipeline is connected to the seawater filtration system, which is used to pump seawater and send it to the seawater filtration system for filtration; the seawater filtration system is connected to the seawater desalination system, which is used to filter seawater and send it into the seawater desalination system for desalination; the seawater desalination system is connected to the fresh water storage tank, which is used to desalinate seawater and send it into the fresh water storage tank; the fresh water storage tank is connected to the electrolytic hydrogen production system, which is used to store the desalinated seawater and send it into the electrolytic hydrogen production system for electrolytic hydrogen production, generating hydrogen and oxygen; the electrolytic hydrogen production system is respectively connected to the methane / methanol synthesis workshop and the large temporary storage tank, which is used to transport part of the hydrogen produced by electrolyzing water to the methane / methanol synthesis workshop to synthesize methane and methanol, and transport oxygen and another part of hydrogen to the large temporary storage tank for storage respectively; the methane / methanol synthesis workshop is connected to the large temporary storage tank, which is used to transport the produced methane and methanol to the large temporary storage tank for storage respectively; the post-treatment system is connected to the large temporary storage tank, which is used to separate, purify, pressurize or liquefy various chemical gases and package them for external transportation.

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