A green seabed collecting system driven by offshore clean energy

Abstract

The application discloses a kind of green seabed collection systems driven by offshore clean energy;Belong to seabed collection technical field, including fan unit, photovoltaic unit and gas storage cabin platform, seabed collection system and mooring system;Fan unit, photovoltaic unit and gas storage cabin platform are anchored in seabed by mooring system, fan unit, photovoltaic unit and gas storage cabin platform are connected by gas pipeline;There is gas pipeline and power transmission pipeline between photovoltaic unit and gas storage cabin platform and seabed collection system, to facilitate the energy input for its work to be provided to seabed collection system by the high-pressure gas stored and the electric energy generated by conveying.The present application utilizes offshore wind energy, photovoltaic, seawater temperature difference energy for organic combination and efficient utilization, provides energy drive for seabed collection;The present application generates high-temperature hot air and low-temperature cold air to cool the tail water through the principle of vortex tube, reduces the temperature difference of tail water to pollute the seabed ecology, based on the characteristics of seabed collection from seabed to extract cold seawater, improves the efficiency of temperature difference energy power generation system.

Description

Technical Field

[0001] This invention belongs to the field of seabed harvesting technology and relates to a green seabed harvesting system driven by clean marine energy. Background Technology

[0002] The exploitation of seabed resources can effectively address the problem of resource scarcity on land and meet the needs of social development. However, seabed resources are widely distributed on the seabed, and hasty commercial exploitation will inevitably have a huge impact on its ecological environment, even causing irreversible and devastating damage. Many factors influence the environment during seabed collection. Currently, much research has been conducted on plumes, light, and noise during the collection process, and some technical solutions have been proposed. However, in the case of polymetallic nodules, the water depth is around 6000m, and the temperature difference between the seabed and the sea surface is around 24℃-27℃. When seawater is raised to the collection vessel, it warms up, and its return to the seabed will inevitably cause localized temperature increases, damaging the seabed ecosystem. Current research, however, lacks attention to this aspect.

[0003] Furthermore, seabed energy harvesting is a typical deep-sea operation, characterized by its remote location and long service life. Energy supply is a critical issue. Using traditional energy sources presents transportation difficulties and marine pollution; while existing battery storage technologies cannot meet the energy density requirements for long-term operation. However, offshore wind, solar, and ocean thermal energy conversion resources are extremely abundant in remote areas, representing a unique energy advantage. Therefore, this invention organically combines offshore wind, solar, and ocean thermal energy conversion with a seabed energy harvesting system, proposing a technical solution with clean energy supply. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this invention is to propose a green seabed harvesting system driven by clean energy at sea.

[0005] The technical solution of the present invention is: a green seabed harvesting system driven by clean energy at sea, comprising a wind turbine unit, a photovoltaic unit and a gas storage tank platform, a seabed harvesting system and a mooring system;

[0006] The wind turbine, photovoltaic unit, and gas storage tank platform share a mooring system and are anchored to the seabed through the mooring system.

[0007] The wind turbine, photovoltaic unit, and gas storage platform are connected via gas pipelines.

[0008] The photovoltaic unit is interconnected with the gas storage tank platform and the seabed data acquisition system.

[0009] Furthermore, the fan unit includes an air compressor head assembly, a tower is connected to the lower end of the air compressor head assembly, an intermediate gas storage column platform is installed at the bottom end of the tower, and three side columns are connected to the outer triangular part of the intermediate gas storage column platform.

[0010] The air compressor head assembly is connected to the intermediate air storage column platform via a tower. The intermediate air storage column platform is fixed to the side columns via a truss to form a floating platform for the fan unit.

[0011] Furthermore, the intermediate gas storage column platform is anchored on the seabed via a mooring system connected to the bottom of the side columns by a truss.

[0012] Furthermore, the air compressor head assembly includes fan blades, a shroud, and a nacelle;

[0013] The fan blades are installed at the rear of the deflector. A connecting shaft, a gear transmission assembly, and an air compressor assembly are installed on the rear side of the fan blades. The fan blades are connected to the air compressor assembly through the connecting shaft and the gear transmission assembly. The connecting shaft, the gear transmission assembly, and the air compressor assembly are installed inside the nacelle.

[0014] A wind-blocking system is installed on the rear side of the cabin.

[0015] At each end of the nacelle, there are air intakes and exhaust ports for the nose.

[0016] Furthermore, the lower end of the nacelle is connected to the tower.

[0017] The tower includes a tower column and an internal gas transmission pipe opened inside the tower column;

[0018] The exhaust port of the turbine head is connected to the built-in gas supply pipeline of the tower via a pipeline.

[0019] Furthermore, the bottom end of the tower is connected to the intermediate gas storage column platform.

[0020] The intermediate gas storage column platform includes an outer floating body installed on the periphery, an internal first gas storage transfer chamber installed inside the outer floating body, and a first chamber air inlet installed on the top of the internal first gas storage transfer chamber.

[0021] The bottom of the built-in gas pipeline is connected to the first gas storage transfer compartment built into the intermediate gas storage column platform through the installed first compartment air inlet;

[0022] A first exhaust port is provided through one side wall of the built-in first gas storage transfer chamber and the outer floating body. The first exhaust port is connected to the photovoltaic unit and the gas storage chamber platform through a connecting pipe.

[0023] Furthermore, the photovoltaic unit and gas storage tank platform includes a floating platform, which is anchored on the seabed via a connected mooring system;

[0024] A photovoltaic unit is installed at the upper end of the floating platform, and a second gas storage tank is installed at the lower end of the floating platform.

[0025] A second air vent is provided on one side of the second air storage chamber. The second air vent is connected to the second air storage chamber. A pressure sensor, an electric valve, and a microcontroller are respectively installed inside the second air storage chamber and at the interface end near the second air vent.

[0026] Furthermore, the second gas storage chamber includes a second gas storage chamber body that forms a sealed gas storage space. A second gas storage chamber air inlet is provided at one end of the second gas storage chamber body near the exhaust port of the first chamber. The second gas storage chamber air inlet is connected to the exhaust port of the first chamber through a connected pipe pump system. A one-way valve is also provided between the pipe pump system of the first chamber exhaust port and the second gas storage chamber air inlet.

[0027] A second air storage tank exhaust port is provided on the other side of the second air storage tank body, and a speed-regulating air pump is installed in front of the second air storage tank exhaust port;

[0028] The photovoltaic unit and the gas storage tank platform are connected to the seabed data acquisition system via gas transmission pipelines and power transmission pipelines.

[0029] Furthermore, the seabed data collection system includes a data collection vessel, a lifting system, a relay station, a data collection vehicle, a tailrace pipe, and a tailrace cooling system;

[0030] The data collection vessel includes a vortex tube and a thermoelectric power generation system;

[0031] The lifting system includes a lifting pipe, an air balloon, and a solenoid valve, with the spherical body on the air balloon fixed to the lifting pipe.

[0032] The tailwater cooling system includes a cooling chamber, a cooling chamber air inlet, and a cooling chamber air outlet.

[0033] The collection vessel and the collection vehicle are connected by a lifting system and a relay station. The tailwater cooling system is wrapped around the outer wall of the tailwater pipe and is located near the middle section of the gas transmission pipe in the lifting system.

[0034] Furthermore, the compressed air inlet on the vortex tube is connected to the exhaust port of the second gas storage compartment of the photovoltaic unit and the gas storage compartment platform through an installed pipe pump system.

[0035] The hot gas outlet on the vortex tube is connected to the heat source of the thermoelectric power generation system through a pipe pump system.

[0036] The cold air outlet on the pipeline pump system is connected to the air inlet of the cooling chamber of the tailwater cooling system through the pipeline pump system.

[0037] The air outlet of the cooling chamber is connected to the solenoid valve of the lifting system via a pipeline pump system.

[0038] Furthermore, both the floating platform and the second air storage tank are made of corrosion-resistant materials.

[0039] The principle involved in this invention: This invention modifies the fan head based on the principle of gear transmission and air compressor, converting the high torque and low speed kinetic energy obtained by the blades into low torque and high speed kinetic energy through gear transmission, so as to drive the air compressor to compress air;

[0040] This invention is based on the principle of vortex tubes. Compressed air is input into the vortex tube and flows in one direction at high speed. During this airflow, the outer layer of air heats up, forming a heat source; conversely, the inner layer of air cools down (heating is proportional to flow velocity). When it reaches one end, the cold air flows back along the center of the vortex, forming a cooling source. The vortex tube uses room-temperature, high-pressure gas as the intake material and can output high-temperature heat sources of 100–130°C and low-temperature cold sources of -10–-50°C. Ultimately, the high-pressure gas energy captured by the wind turbine unit is converted into high-temperature heat sources and low-temperature cold sources to cool the tailwater and improve the efficiency of thermoelectric power generation.

[0041] This invention uses cold seawater collected from the seabed as a coolant for thermoelectric power generation, which can effectively recover and utilize the energy consumed in the pumping process during seabed collection (generally, the cold seawater used for thermoelectric power generation is taken from a depth of 400-1000m with a total temperature difference of 15-20℃, while the seabed collection depth used in this invention is deeper with a total temperature difference of about 24℃-27℃, so it is more effective).

[0042] The beneficial effects of this invention are: This invention makes full use of offshore wind energy, photovoltaic energy, and seawater temperature difference energy, and organically combines them for efficient utilization, providing energy drive for seabed harvesting; This invention generates high-temperature hot airflow and low-temperature cold airflow through the vortex tube principle, which cools the tailwater and reduces the pollution of the seabed ecosystem by the tailwater temperature difference, while further improving the efficiency of the temperature difference energy power generation system based on the characteristic of seabed harvesting to extract cold seawater from the seabed. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 This is a schematic diagram of the structure of the wind turbine unit in this invention;

[0045] Figure 3This is a schematic diagram of the structure connecting the rotating shaft in the fan unit of the present invention;

[0046] Figure 4 This is a schematic diagram of the structure of the photovoltaic unit and the gas storage tank platform in this invention;

[0047] Figure 5 This is a schematic diagram of the seabed data acquisition system in this invention;

[0048] In the diagram, 1 is the fan unit, 11 is the air compressor head assembly, 111 is the fan blade, 112 is the air deflector, 113 is the nacelle, 114 is the air intake system, 115 is the connecting shaft, 116 is the gear transmission assembly, 117 is the air compressor assembly, 118 is the head air inlet, and 119 is the head exhaust outlet.

[0049] 12 is the tower section, 121 is the tower column, and 122 is the internal gas transmission pipeline.

[0050] 13 is a side column;

[0051] 14 is the intermediate gas storage column platform, 141 is the outer floating body, 142 is the built-in first gas storage transfer compartment, 143 is the first compartment air inlet, and 144 is the first compartment exhaust outlet.

[0052] 2 represents the photovoltaic unit and gas storage tank platform, 21 represents the photovoltaic unit, and 22 represents the floating platform.

[0053] 23 is the second air storage compartment, 231 is the body of the second air storage compartment, 232 is the air inlet of the second air storage compartment, 233 is the speed-regulating air pump, 234 is the exhaust port of the second air storage compartment, 235 is the vent of the second air storage compartment, 236 is the air pressure sensor, 237 is the electric valve, and 238 is the microcontroller.

[0054] 3 is the seabed data collection system, 31 is the data collection vessel, 311 is the vortex tube, and 312 is the thermoelectric power generation system.

[0055] 32 is the lifting system, 321 is the lifting pipe, 322 is the air balloon, and 323 is the solenoid valve;

[0056] 33 is the relay station, 34 is the data collection vehicle, and 35 is the tailrace pipe.

[0057] 36 is the tailwater cooling system; 361 is the cooling chamber; 362 is the cooling chamber air inlet; 363 is the cooling chamber air outlet; 4 is the mooring system. Detailed Implementation

[0058] The specific technical solution of the present invention will be further described in detail below with reference to specific examples.

[0059] like Figure 1As shown, the green seabed harvesting system driven by clean energy at sea according to the present invention consists of a wind turbine unit 1, a photovoltaic unit and a gas storage tank platform 2, a seabed harvesting system 3, and a mooring system 4.

[0060] The wind turbine unit 1, the photovoltaic unit and the gas storage tank platform 2 share the mooring system 4 and are anchored to the seabed through the mooring system 4. At the same time, the wind turbine unit 1, the photovoltaic unit and the gas storage tank platform 2 are connected by a gas pipeline to facilitate the transportation of high-pressure gas.

[0061] The photovoltaic unit, the gas storage tank platform 2, and the seabed data acquisition system 3 are connected by gas transmission pipelines and power transmission pipelines, so as to transmit the high-pressure gas stored in the photovoltaic unit and the gas storage tank platform 2 and the generated electricity to the seabed data acquisition system 3 to provide energy input for the operation of the seabed data acquisition system 3.

[0062] like Figure 2-3 As shown, the fan unit 1 mainly consists of an air compressor head assembly 11, a tower 12, side columns 13, and an intermediate air storage column platform 14;

[0063] The air compressor head assembly 11 includes fan blades 111, a shroud 112, a nacelle 113, a wind system 114, a connecting shaft 115, a gear transmission assembly 116, an air compressor assembly 117, a head air inlet 118, and a head exhaust outlet 119.

[0064] The tower 12 mainly consists of a tower column 121 and an internal gas transmission pipeline 122;

[0065] The intermediate gas storage column platform 14 mainly includes an outer float 141, an internal first gas storage transfer chamber 142, a first chamber air inlet 143, and a first chamber exhaust outlet 144.

[0066] The air compressor head assembly 11 is connected to the intermediate air storage column platform 14 via the tower 12. The intermediate air storage column platform 14 is fixedly connected to the side columns 13 via trusses to form the floating platform of the fan unit 1, thereby constructing the upper air compressor head assembly 11 and the tower 12.

[0067] The intermediate gas storage column platform 14 is anchored on the seabed via a mooring system 4 and the bottom of the side columns 13 connected by a truss.

[0068] The fan blades 111 are mounted at the rear of the guide shroud 112 and are connected to the air compressor assembly 117 via a connecting shaft 115 and a gear transmission assembly 116. The connecting shaft 115 transmits the high-torque, low-speed mechanical energy obtained by the fan blades 111 to the large gear of the gear transmission assembly 116. Then, the large gear meshes with the small gear to generate high-speed, low-torque mechanical energy, which is then transmitted to the air compressor assembly 117 via the air compressor assembly shaft, providing kinetic energy for the operation of the air compressor assembly 117.

[0069] The connecting shaft 115, gear transmission assembly 116, and air compressor assembly 117 are installed inside the engine compartment 113 to protect the connecting shaft 115, gear transmission assembly 116, and air compressor assembly 117 from environmental corrosion.

[0070] The airflow system 114 is installed at the rear of the nacelle 113 to ensure that the air compressor head assembly 11 is always facing the wind, thereby improving energy capture efficiency.

[0071] The air inlet 118 and exhaust outlet 119 are located on the engine compartment 113 and are used to capture air and output high-pressure gas when the air compressor assembly 117 is working. The exhaust outlet 119 is connected to the built-in gas transmission pipe 122 of the tower 12 via a pipeline. The built-in gas transmission pipe 122 is located inside the tower column 121 of the tower 12 to form a high-pressure airflow channel. The bottom of the built-in gas transmission pipe 122 is connected to the built-in first gas storage transfer compartment of the intermediate gas storage column platform 14. 142 is connected through the first chamber air inlet 143. The built-in first gas storage transfer chamber 142 is opened inside the outer float 141 of the intermediate gas storage column platform 14. The outer float 141 provides a platform and buoyancy for the wind turbine unit 1 on the one hand, and protects the first gas storage transfer chamber 142 from corrosion and prevents the leakage of high-pressure gas inside. The first chamber exhaust port 144 is opened on the side of the intermediate gas storage column platform 14 and is connected to the photovoltaic unit and the gas storage chamber platform 2 through a pipeline.

[0072] like Figure 4 As shown, the photovoltaic unit and gas storage tank platform 2 includes a photovoltaic unit 21, a floating platform 22, and a second gas storage tank 23, wherein the photovoltaic unit 21 is installed above the floating platform 22, and the second gas storage tank 23 is installed below the floating platform 22.

[0073] The floating platform 22 is made of corrosion-resistant material and its overall density is less than that of water, providing good buoyancy and installation space for the photovoltaic unit and the gas storage tank platform 2. The second gas storage tank 23 is made of corrosion-resistant material and is installed below the floating platform 22, below the sea surface. Seawater forms a liquid seal on it, preventing excessive air pressure inside the second gas storage tank 23 from causing leakage.

[0074] The second air storage chamber 23 includes a second air storage chamber body 231, a second air storage chamber air inlet 232, a speed-regulating air pump 233, a second air storage chamber exhaust port 234, a second air storage chamber vent 235, a pressure sensor 236, an electric valve 237, and a microcontroller 238.

[0075] The second gas storage chamber 231 forms a sealed gas storage space. The second gas storage chamber 231 is connected to the first chamber exhaust port 144 of the intermediate gas storage column platform 14 through the second gas storage chamber inlet 232 and the pipeline pump system to ensure that the high-pressure gas inside the first gas storage transfer chamber 142 is smoothly transported to the second gas storage chamber 231. A one-way valve is installed between the pipeline system of the first chamber exhaust port 144 and the second gas storage chamber inlet 232 to avoid backflow.

[0076] A second gas storage tank exhaust port 234 is also provided on the side of the second gas storage tank body 231. A speed-regulating air pump 233 is provided in front of the second gas storage tank exhaust port 234 to deliver high-pressure gas to the seabed collection system 3 at a certain speed under different working conditions.

[0077] A second air vent 235 is also provided on the side of the second air storage chamber 231. The second air vent 235 is connected to the second air storage chamber 23. A pressure sensor 236, an electric valve 237, and a microcontroller 238 are installed at the interface of the second air vent 235 inside the second air storage chamber 23. The pressure sensor 236 obtains the air pressure inside the second air storage chamber 23 and transmits it to the microcontroller 238 in real time. When the microcontroller 238 determines that the air pressure inside the second air storage chamber 23 is too high, it opens the electric valve 237 to release some gas through the second air vent 235 to ensure the air pressure inside the chamber is safe. When the microcontroller 238 determines that the air pressure inside the second air storage chamber 23 is normal, it closes the electric valve 237 to allow the entire system to operate normally.

[0078] like Figure 5 As shown, the seabed data collection system 3 includes a data collection vessel 31, a lifting system 32, a relay station 33, a data collection vehicle 34, a tailrace pipe 35, and a tailrace cooling system 36, and its lifting method adopts a pneumatic lifting method.

[0079] The collection vessel 31 and the collection vehicle 34 are connected through the lifting system 32 and the relay station 33. The seabed target collected by the collection vehicle 34 is lifted onto the collection vessel 31 by a pneumatic lifting method. After separating the seabed target, the tailwater is discharged back to the seabed through the tailwater pipe 35. The tailwater cooling system 36 covers a section of the tailwater pipe 35 near the air supply pipe of the lifting system 32 to cool the tailwater and prevent high-temperature tailwater from being discharged back to the seabed, raising the low temperature environment of the seabed and affecting the seabed ecosystem.

[0080] In addition to the traditional engineering operation system, the collection vessel 31 is also equipped with a vortex tube 311 and a thermoelectric power generation system 312.

[0081] The lifting system 32 includes a lifting pipe 321, an air balloon 322, and a solenoid valve 323;

[0082] The tailwater cooling system 36 includes a cooling chamber 361, a cooling chamber air inlet 362, and a cooling chamber air outlet 363. The compressed air inlet of the vortex tube 311 is connected to the exhaust port 234 of the second air storage chamber of the photovoltaic unit and the air storage tank platform 2 through a piping system, so that after the high-pressure gas is input into the vortex tube 311, low-temperature cold gas is discharged from the cold air outlet and high-temperature hot gas is discharged from the hot air outlet.

[0083] The cold air outlet of the vortex tube 311 is connected to the cooling chamber air inlet 362 of the tailwater cooling system 36 through the pipe pump system, so that the interior of the cooling chamber 361 is filled with low-temperature cold air to cool the tailwater. The cooled gas is connected to the solenoid valve 323 of the lifting system 32 through the cooling chamber air outlet 363 via the pipe pump system. The solenoid valve 323 is normally open in the working state and can be closed in the maintenance, shutdown and other states.

[0084] The low-temperature airflow output from the cooling chamber outlet 363 of the tailwater cooling system 36 is transported by the pipeline pump system and input into the riser pipe 321 through the air balloon 322, so that the system generates an upward pressure differential force to lift the seabed target collected by the collection vehicle 34. The air balloon 322 is spherically fixed to the riser pipe 321 to provide a buffer volume for gas input and avoid damage to the pipeline system by large expansion force. At the same time, the low-temperature cold airflow cools the seawater in the riser pipe 321, which serves as a cold source for the thermoelectric power generation system, and further serves as a source for the thermoelectric power generation system.

[0085] The hot gas outlet of the vortex tube 311 is connected to the heat source of the thermoelectric power generation system 312 through a pipe pump system to enhance the heat source energy. The low-temperature tailwater after separation of the sediment mixture of seabed target collected from the seabed is transported to the cold source of the thermoelectric power generation system 312. Through the above process, the temperature difference between the heat source and the cold source of the thermoelectric power generation system 312 is increased to improve the power generation efficiency and generate electricity for the collection operation.

Claims

1. A green seabed collection system driven by offshore clean energy, characterized in that, The wind turbine unit (1), the photovoltaic unit and the gas storage cabin platform (2) share the mooring system (4) and are anchored on the seabed through the mooring system (4); the wind turbine unit (1), the photovoltaic unit and the gas storage cabin platform (2) are connected through a gas pipeline, and the photovoltaic unit and the gas storage cabin platform (2) are connected with the seabed collection system (3); The wind turbine unit (1) includes an air compressor head assembly (11), the air compressor head assembly (11) includes a wind turbine blade (111), a fairing (112) and a cabin (113), the wind turbine blade (111) is arranged at the rear of the fairing (112), a connecting shaft (115), a gear transmission assembly (116) and an air compressor assembly (117) are arranged at the rear side of the wind turbine blade (111), the wind turbine blade (111) is communicated with the air compressor assembly (117) through the connecting shaft (115) and the gear transmission assembly (116), the connecting shaft (115), the gear transmission assembly (116) and the air compressor assembly (117) are arranged in the cabin (113), a wind system (114) is arranged at one side of the tail of the cabin (113), a head air inlet (118) and a head air outlet (119) are further arranged at both ends of the cabin (113) to capture air and output high-pressure gas when the air compressor assembly (117) works; The lower end of the cabin (113) is connected to the tower (12), the tower (12) includes a tower column (121) and an internal gas pipeline (122) arranged in the tower column (121) to form a high-pressure gas flow channel, and the head air outlet (119) is connected to the internal gas pipeline (122) of the tower (12) through a pipeline; The bottom end of the tower (12) is connected to the intermediate gas storage column platform (14), the intermediate gas storage column platform (14) includes an outer floating body (141) arranged on the periphery, an internal first gas storage transfer cabin (142) is arranged in the inner floating body (141), a first cabin air inlet (143) is arranged at the top of the internal first gas storage transfer cabin (142), the bottom of the internal gas pipeline (122) is communicated with the internal first gas storage transfer cabin (142) of the intermediate gas storage column platform (14) through the arranged first cabin air inlet (143), a first cabin air outlet (144) is penetrated through the side wall of the internal first gas storage transfer cabin (142) and the outer floating body (141), and the first cabin air outlet (144) is communicated with the photovoltaic unit and the gas storage cabin platform (2) through a connected pipeline. The photovoltaic unit and gas storage cabin platform (2) comprises a floating platform (22), a photovoltaic unit (21) is arranged at the upper end of the floating platform (22), and a second gas storage cabin (23) is arranged at the lower end of the floating platform (22); the second gas storage cabin (23) comprises a second gas storage cabin body (231) forming a closed gas storage space, a second gas storage cabin air inlet (232) is formed at one end of the second gas storage cabin body (231) close to the first cabin air outlet (144), and a second gas storage cabin air outlet (234) is formed at the other side of the second gas storage cabin body (231); the photovoltaic unit and gas storage cabin platform (2) is connected to the seabed collection system (3) through a gas pipeline and an electric pipeline; The seabed collection system (3) comprises a collection ship (31), and the collection ship (31) comprises an eddy tube (311) and a temperature difference power generation system (312); a compressed air inlet formed in the eddy tube (311) is communicated with the second gas storage cabin air outlet (234) of the photovoltaic unit and gas storage cabin platform (2) through a pipe pump system, so that high-pressure gas is input into the eddy tube (311) and then low-temperature cold air is discharged from a cold air outlet and high-temperature hot air is discharged from a hot air outlet.

2. A green ocean floor collection system driven by offshore clean energy according to claim 1, characterized in that, Three side columns (13) are connected to the outer periphery of the intermediate gas storage column platform (14); The air compressor head assembly (11) is connected to the intermediate gas storage column platform (14) through a tower drum (12), the intermediate gas storage column platform (14) is fixedly connected to the side columns (13) through a truss to form a floating platform of the fan unit (1); The intermediate gas storage column platform (14) is anchored to the seabed through a mooring system (4) and the bottom of the side columns (13).

3. A green ocean floor collection system driven by offshore clean energy according to claim 2, characterized in that, The floating platform (22) is anchored to the seabed through the connected mooring system (4); A second gas storage cabin air outlet (235) is formed in one side of the second gas storage cabin (23), the second gas storage cabin air outlet (235) is communicated with the second gas storage cabin (23), and a gas pressure sensor (236), an electric valve (237) and a single-chip microcomputer (238) are arranged at the interface end close to the second gas storage cabin air outlet (235) in the second gas storage cabin (23).

4. A green ocean floor collection system driven by offshore clean energy according to claim 3, characterized in that, The second gas storage cabin air inlet (232) is communicated with the first cabin air outlet (144) through a connected pipe pump system, and a one-way valve is arranged between the pipe pump system of the first cabin air outlet (144) and the second gas storage cabin air inlet (232); a speed regulating air pump (233) is arranged at the front of the second gas storage cabin air outlet (234).

5. A green ocean floor collection system driven by offshore clean energy as claimed in claim 4, wherein, The seabed collection system (3) further comprises a lifting system (32), a relay station (33), a collection vehicle (34), a tail water pipe (35) and a tail water cooling system (36); The lifting system (32) comprises a lifting pipe (321), an air ball (322) and an electromagnetic valve (323), and the spherical body on the air ball (322) is fixedly connected to the lifting pipe (321); The tail water cooling system (36) comprises a cooling cabin (361), a cooling cabin air inlet (362) and a cooling cabin air outlet (363). The collection ship (31) and the collection vehicle (34) are connected through the lifting system (32) and the relay station (33), and the tail water cooling system (36) is wrapped on the outer wall of the tail water pipe (35) and is close to the middle pipe section of the gas pipeline in the lifting system (32).

6. A green ocean floor collection system driven by offshore clean energy as claimed in claim 5 wherein, The hot gas outlet of the vortex tube (311) is connected with the heat source of the thermoelectric power generation system (312) through the pipe pump system; The cold gas outlet of the pipe pump system is connected with the cooling cabin air inlet (362) of the tail water cooling system (36) through the pipe pump system; The cooling cabin air outlet (363) is connected with the electromagnetic valve (323) of the lifting system (32) through the pipe pump system.

7. A green ocean floor collection system driven by offshore clean energy as claimed in claim 6 wherein, The floating body platform (22) and the second gas storage cabin (23) are made of corrosion-resistant materials.

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