Green seabed collection system driven by offshore clean energy

Abstract

The invention discloses a green seabed collection system driven by offshore clean energy. The system belongs to the technical field of seabed acquisition and comprises a fan unit, a photovoltaic unit, a gas storage cabin platform, a seabed acquisition system and a mooring system, the fan unit, the photovoltaic unit and the gas storage cabin platform are anchored to the seabed through the mooring system, and the fan unit, the photovoltaic unit and the gas storage cabin platform are connected through a gas transmission pipeline; and a gas transmission pipeline and a power transmission pipeline are arranged among the photovoltaic unit, the gas storage cabin platform and the seabed acquisition system, so that stored high-pressure gas and generated electric energy can be conveniently transmitted to the seabed acquisition system to provide energy input for working of the seabed acquisition system. Offshore wind energy, photovoltaic energy and seawater temperature difference energy are organically combined and efficiently utilized, and energy drive is provided for seabed collection; according to the vortex tube principle, high-temperature hot airflow and low-temperature cold airflow are generated to cool tail water, seabed ecological pollution caused by tail water temperature difference is reduced, and the efficiency of a temperature difference energy power generation system is improved based on the characteristic that cold seawater is extracted from the seabed through seabed collection.

Description

Technical Field

[0001] The invention belongs to the technical field of seabed collection and relates to a green seabed collection system driven by offshore clean energy. Background Art

[0002] The exploitation of seabed resources can effectively solve the problem of scarce resources on land and meet the development needs of society. However, seabed resources are widely distributed on the seabed. Rash commercial exploitation will inevitably have a huge impact on its ecological environment and even an irreversible and destructive blow. There are many factors that affect the environment of seabed collection. At present, many studies have been conducted on plumes, light, and noise during seabed collection, and some technical solutions have been proposed. However, in the process of seabed collection, taking polymetallic nodules as an example, the water depth is about 6000m, and the temperature difference between the seabed and the sea surface is about 24℃-27℃. When the seawater is lifted to the collection ship, the seawater will heat up, and then discharged back to the seabed will inevitably cause the local temperature of the seabed to rise, which will damage the seabed ecology, but current research lacks attention to this.

[0003] In addition, seabed collection is a typical deep-sea operation project, which is far from the shore and has a long service life. Its energy supply is an important issue. The use of traditional energy is inconvenient to transport and will cause marine environmental pollution; using battery energy, the energy density of existing energy storage technology is difficult to meet long-term service life. However, offshore wind power, photovoltaics, and seawater temperature difference energy resources are extremely abundant in offshore areas, which is a unique energy situation. Therefore, the present invention organically combines offshore wind power, photovoltaics, and seawater temperature difference energy with the seabed collection system, and proposes a technical solution with clean energy supply. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose a green seabed collection system driven by offshore clean energy.

[0005] The technical solution of the present invention is: a green seabed collection system driven by offshore clean energy described in the present invention comprises a wind turbine unit, a photovoltaic unit and a gas storage tank platform, a seabed collection system and a mooring system;

[0006] Wherein, the wind turbine unit, photovoltaic unit and gas storage tank platform share a mooring system and are anchored on the seabed through the mooring system;

[0007] The wind turbine unit, photovoltaic unit and gas storage tank platform are connected through a gas pipeline.

[0008] The photovoltaic unit is connected to the gas storage tank platform and the seabed collection 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 air storage column platform is arranged at the bottom end of the tower, and three side columns are connected to the outer triangle of the intermediate air storage column platform;

[0010] The air compressor head assembly is connected to the intermediate air storage column platform through the tower, and the intermediate air storage column platform is fixedly connected to the side columns through a truss to form a floating platform for the fan unit;

[0011] The intermediate gas storage column platform is anchored on the seabed through a mooring system via the trusses and the bottom of the side columns.

[0012] Further, the air compressor head assembly includes fan blades, a guide cover and a nacelle;

[0013] The fan blades are arranged at the rear of the air guide cover, and a connecting shaft, a gear transmission assembly and an air compressor assembly are arranged at 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, and the connecting shaft, the gear transmission assembly and the air compressor assembly are arranged inside the cabin;

[0014] A wind control system is arranged on the tail side of the nacelle.

[0015] A nose air inlet and a nose exhaust port are respectively arranged at both ends of the cabin.

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

[0017] The tower comprises a tower column and a built-in gas pipeline opened inside the tower column;

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

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

[0020] The intermediate gas storage column platform comprises an outer floating body arranged at the periphery, a built-in first gas storage transfer cabin is arranged inside the outer floating body, and a first cabin air inlet is arranged on the top of the built-in first gas storage transfer cabin.

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

[0022] A first cabin exhaust port is penetrated through a side wall of the built-in first gas storage transfer cabin and the outer floating body, and the first cabin exhaust port is connected to the photovoltaic unit and the gas storage cabin platform through a connected pipeline.

[0023] Furthermore, the photovoltaic unit and the gas storage tank platform include a floating platform, and the floating platform is anchored on the seabed through 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 storage tank air vent is provided on one side of the second air storage tank, the second air storage tank air vent is connected to the second air storage tank, and an air pressure sensor, an electric valve and a single-chip microcomputer are respectively installed inside the second air storage tank and near the interface end of the second air storage tank air vent.

[0026] Furthermore, the second gas storage tank comprises a second gas storage tank body forming a closed gas storage space, a second gas storage tank air inlet is provided on one end of the second gas storage tank body close to the first tank exhaust port, the second gas storage tank air inlet is connected to the first tank exhaust port through a connected pipe pump system, and a one-way valve is further provided between the first tank exhaust port and the pipe pump system of the second gas storage tank air inlet;

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

[0028] The photovoltaic unit and the gas storage tank platform are connected to the seabed collection system through a gas pipeline and an electricity pipeline.

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

[0030] The collection ship includes a vortex tube and a temperature difference energy power generation system;

[0031] The lifting system includes a lifting pipe, an air ball and a solenoid valve, wherein the spherical body on the air ball is fixedly connected to the lifting pipe;

[0032] The tailwater cooling system comprises a cooling chamber, a cooling chamber air inlet and a cooling chamber air outlet;

[0033] The collection ship and the collection vehicle are connected through a lifting system and a relay station. The tailwater cooling system is wrapped on the outer wall of the tailwater pipe and is close to the middle pipe section of the gas transmission pipeline in the lifting system.

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

[0035] The hot air flow outlet opened on the vortex tube is connected to the heat source of the temperature difference energy power generation system through a tube pump system;

[0036] The cold air flow outlet opened on the pipe pump system is connected to the cooling cabin air inlet of the tail water cooling system through the pipe pump system;

[0037] The air outlet of the cooling cabin is connected to the electromagnetic valve of the lifting system via the pipe pump system.

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

[0039] Principles involved in the present invention: The present invention transforms the fan head based on the principle of gear transmission and air compressor, converts the high torque and low speed kinetic energy obtained by the blades into low torque and high speed kinetic energy through gear transmission to drive the air compressor to compress the air;

[0040] The present invention is based on the vortex tube principle. Compressed air is input into the vortex tube and flows to one side in a high-speed rotating manner. During the movement of this airflow, the air in the outer layer will heat up and form a heat source; on the contrary, the air in the inner layer will become cold (the degree of coldness and heat is proportional to the flow rate). When it moves to one end, the cold air will flow back along the center of the vortex to form a cooling source. The vortex tube uses normal temperature and high-pressure gas as the air intake raw material, and can output high-level heat sources up to 100 to 130°C and low-temperature cooling sources up to -10 to -50°C; finally, the high-pressure gas energy captured by the fan unit is converted into high-temperature heat sources and low-temperature cooling sources to cool the tail water and improve the efficiency of temperature difference energy power generation;

[0041] The present invention uses the cold seawater collected from the seabed as the coolant for temperature difference energy generation, which can effectively recycle the energy consumed in the pump lifting process during the seabed collection process (generally, the cold seawater for temperature difference energy generation is taken from a sea depth of 400-1000m, with a total temperature difference of 15-20°C, while the seabed collection and extraction depth used in the present invention is deeper, with a total temperature difference of about 24°C-27°C, so it is more effective).

[0042] The beneficial effects of the present invention are as follows: the present 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 collection; the present invention uses the vortex tube principle to generate high-temperature hot air flow and low-temperature cold air flow, while cooling the tail water and reducing the pollution of the seabed ecology by the tail water temperature difference, based on the characteristics of seabed collection to extract cold seawater from the seabed, further improving the efficiency of the temperature difference energy power generation system. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0044] Figure 2 It is a structural schematic diagram of the fan unit in the present invention;

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

[0046] Figure 4 It is a structural schematic diagram of the photovoltaic unit and the gas storage tank platform in the present invention;

[0047] Figure 5 It is a structural schematic diagram of the seabed acquisition system in the present invention;

[0048] In the figure, 1 is a fan unit, 11 is an air compressor head assembly, 111 is a fan blade, 112 is a guide cover, 113 is a cabin, 114 is a wind system, 115 is a connecting shaft, 116 is a gear transmission assembly, 117 is an air compressor assembly, 118 is a head air inlet, and 119 is a head exhaust port.

[0049] 12 is a tower, 121 is a tower column, and 122 is a built-in gas pipeline;

[0050] 13 is a side column;

[0051] 14 is the middle gas storage column platform, 141 is the outer floating body, 142 is the built-in first gas storage transfer cabin, 143 is the first cabin air inlet, and 144 is the first cabin exhaust port;

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

[0053] 23 is a second air storage tank, 231 is a second air storage tank body, 232 is an air inlet of the second air storage tank, 233 is a speed regulating air pump, 234 is an exhaust port of the second air storage tank, 235 is an air release port of the second air storage tank, 236 is an air pressure sensor, 237 is an electric valve, and 238 is a single chip microcomputer;

[0054] 3 is a seabed collection system, 31 is a collection vessel, 311 is a vortex tube, and 312 is a temperature difference energy power generation system;

[0055] 32 is a lifting system, 321 is a lifting pipe, 322 is an air ball, and 323 is a solenoid valve;

[0056] 33 is the relay station, 34 is the collection vehicle, 35 is the tailwater pipe,

[0057] 36 is a tailwater cooling system; 361 is a cooling cabin, 362 is an air inlet of the cooling cabin, 363 is an air outlet of the cooling cabin; 4 is a mooring system. DETAILED DESCRIPTION

[0058] The specific technical solutions of the present invention are further described in detail below in conjunction with specific examples.

[0059] like Figure 1As shown, the green seabed collection system driven by clean offshore energy of the present invention is composed of a wind turbine unit 1, a photovoltaic unit and a gas storage tank platform 2, a seabed collection system 3 and a mooring system 4;

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

[0061] Gas pipelines and power pipelines are included between the photovoltaic unit and the gas storage tank platform 2 and the seabed collection system 3, so as to facilitate the transmission of the high-pressure gas stored and the generated electricity by the photovoltaic unit and the gas storage tank platform 2 to the seabed collection system 3 to provide energy input for the operation of the seabed collection system 3.

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

[0063] The air compressor head assembly 11 includes a fan blade 111, a guide cover 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 port 119;

[0064] The tower 12 is mainly composed of a tower column 121 and a built-in gas pipeline 122;

[0065] The intermediate gas storage column platform 14 mainly includes an outer floating body 141, a built-in first gas storage transfer cabin 142, a first cabin air inlet 143 and a first cabin exhaust port 144;

[0066] The air compressor head assembly 11 is connected to the intermediate air storage column platform 14 through the tower 12, and the intermediate air 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, so as to form the upper air compressor head assembly 11 and the tower 12.

[0067] The intermediate gas storage column platform 14 is anchored on the seabed through the truss and the bottom of the side columns 13 through the mooring system 4;

[0068] The fan blades 111 are installed at the rear of the air guide cover 112, and are connected to the air compressor assembly 117 through the connecting shaft 115 and the gear transmission assembly 116. The connecting shaft 115 transmits the large torque and low speed mechanical energy obtained by the fan blades 111 to the large gear of the gear transmission assembly 116, and then the large gear and the small gear are meshed to perform gear transmission to form high speed and small torque mechanical energy, which is transmitted to the air compressor assembly 117 by the air compressor assembly shaft to provide kinetic energy for the operation of the air compressor assembly 117;

[0069] The connecting shaft 115, the gear transmission assembly 116, and the air compressor assembly 117 are installed in the cabin 113 to protect the connecting shaft 115, the gear transmission assembly 116, and the air compressor assembly 117 from environmental corrosion;

[0070] The wind-facing 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 the energy capture efficiency;

[0071] The nose air inlet 118 and the nose exhaust port 119 are provided on the cabin 113 to capture air and output high-pressure gas when the air compressor assembly 117 is working. The nose exhaust port 119 is connected to the built-in gas pipeline 122 of the tower 12 through a pipeline. The built-in gas pipeline 122 is provided inside the tower column 121 of the tower 12 to form a high-pressure air flow channel. The bottom of the built-in gas pipeline 122 is connected to the built-in first gas storage transfer cabin of the intermediate gas storage column platform 14. 142 is connected through the first cabin air inlet 143, and the built-in first gas storage transfer cabin 142 is opened inside the outer floating body 141 of the middle gas storage column platform 14. The outer floating body 141 provides a placement platform and buoyancy for the wind turbine unit 1 on the one hand, and protects the first gas storage transfer cabin 142 from erosion and avoids leakage of its internal high-pressure gas on the other hand. The first cabin exhaust port 144 is opened on the side of the middle gas storage column platform 14, and is connected to the photovoltaic unit and the gas storage cabin 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, and the seawater forms a liquid seal on it, thereby avoiding leakage caused by excessive air pressure inside the second gas storage tank 23;

[0074] The second air storage compartment 23 includes a second air storage compartment body 231, a second air storage compartment air inlet 232, a speed regulating air pump 233, a second air storage compartment exhaust port 234, a second air storage compartment air release port 235, an air pressure sensor 236, an electric valve 237 and a single chip microcomputer 238;

[0075] The second gas storage tank body 231 forms a closed gas storage space, and the second gas storage tank body 231 is connected to the first tank exhaust port 144 of the intermediate gas storage column platform 14 through the second gas storage tank air inlet 232 and the pipe pump system to ensure that the high-pressure gas inside the first gas storage transfer tank 142 is smoothly transported to the second gas storage tank body 231, and a one-way valve is provided between the first tank exhaust port 144 and the second gas storage tank air 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, and a speed-regulating air pump 233 is provided in front of the second gas storage tank exhaust port 234 to transport high-pressure gas to the seabed collection system 3 at a certain speed under different working conditions.

[0077] A second gas storage tank air release port 235 is also provided on the side of the second gas storage tank body 231, and the second gas storage tank air release port 235 is connected to the second gas storage tank 23, and an air pressure sensor 236, an electric valve 237 and a single-chip computer 238 are installed at the interface end of the second gas storage tank air release port 235 inside the second gas storage tank 23. The air pressure in the second gas storage tank 23 is obtained by the air pressure sensor 236 and transmitted to the single-chip computer 238 in real time. When the single-chip computer 238 determines that the air pressure in the second gas storage tank 23 is too high, the electric valve 237 is opened to release part of the gas through the second gas storage tank air release port 235 to ensure the safety of the air pressure in the cabin. When the single-chip computer 238 determines that the air pressure in the second gas storage tank 23 is normal, the electric valve 237 is closed to make the whole system mechanically operate normally.

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

[0079] The collection ship 31 is connected to the collection vehicle 34 through the lifting system 32 and the relay station 33. The seabed target collected by the collection vehicle 34 is lifted to the collection ship 31 by the pneumatic lifting method. After the seabed target collected is separated, the tailwater is discharged back to the seabed through the tailwater pipe 35. The tailwater cooling system 36 is wrapped on the outer wall of the tailwater pipe 35 near the part of the gas pipeline of the lifting system 32 to cool the tailwater, so as to avoid the high-temperature tailwater 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 ship 31 is also equipped with a vortex tube 311 and a temperature difference energy power generation system 312;

[0081] The lifting system 32 includes a lifting pipe 321, an air ball 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, wherein the compressed air inlet of the vortex tube 311 is connected to the photovoltaic unit and the second air storage chamber exhaust port 234 of the air storage chamber platform 2 through a pipe system, so that the high-pressure gas is input into the vortex tube 311 and then the low-temperature cold air is discharged from the cold air flow outlet, and the high-temperature hot air is discharged from the hot air flow outlet;

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

[0084] The low-temperature airflow output from the cooling cabin outlet 363 of the tailwater cooling system 36 is input into the lifting pipe 321 through the air ball 322 via the gas transported by the pipe pump system, so that the system generates an upward pressure difference force to lift the seabed target collected by the collection vehicle 34. The air ball 322 is spherically fixed to the lifting pipe 321 to provide a buffer volume for gas input to avoid large expansion force damaging the pipe system. At the same time, the low-temperature cold airflow cools the seawater in the lifting pipe 321 as a cold source for the temperature difference energy power generation system, so as to further serve as;

[0085] The hot air flow outlet of the vortex tube 311 is connected to the heat source of the temperature difference energy power generation system 312 through a tube pump system to increase the heat source energy. The low-temperature tail water of the seabed target collection sediment mixture lifted from the seabed is transported to the cold source of the temperature difference energy power generation system 312 after separation. Through the above process, the temperature difference between the heat source and the cold source of the temperature difference energy 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 clean offshore energy, characterized in that: It includes a wind turbine unit (1), a photovoltaic unit and a gas storage tank platform (2), a seabed collection system (3) and a mooring system (4); The wind turbine unit (1), photovoltaic unit and gas storage tank platform (2) share a mooring system (4) and are anchored on the seabed through the mooring system (4); The fan unit (1), the photovoltaic unit and the gas storage tank platform (2) are connected via a gas pipeline. The photovoltaic unit is interconnected with the gas storage tank platform (2) and the seabed collection system (3).

2. The green seabed collection system driven by clean offshore energy according to claim 1, characterized in that: The fan unit (1) comprises an air compressor head assembly (11), a tower (12) is connected to the lower end of the air compressor head assembly (11), an intermediate air storage column platform (14) is arranged at the bottom end of the tower (12), and three side columns (13) are connected to the outer triangular part of the intermediate air storage column platform (14); The air compressor head assembly (11) is connected to the intermediate air storage column platform (14) via a tower (12), and the intermediate air storage column platform (14) is fixedly connected to the side columns (13) via a truss to form a floating platform of the fan unit (1); Furthermore, the intermediate gas storage column platform (14) is anchored on the seabed through the truss and the bottom of the side columns (13) via a mooring system (4).

3. The green seabed collection system driven by clean offshore energy according to claim 2 is characterized in that: The air compressor head assembly (11) comprises fan blades (111), a deflector (112) and a nacelle (113); The fan blade (111) is arranged at the rear of the air deflector (112); a connecting shaft (115), a gear transmission assembly (116) and an air compressor assembly (117) are arranged at the rear side of the fan blade (111); the fan blade (111) is connected to the air compressor assembly (117) via the connecting shaft (115) and the gear transmission assembly (116); and the connecting shaft (115), the gear transmission assembly (116) and the air compressor assembly (117) are arranged inside the cabin (113); A wind control system (114) is arranged on one side of the tail of the nacelle (113). A nose air inlet (118) and a nose air outlet (119) are respectively arranged at both ends of the cabin (113).

4. The green seabed collection system driven by offshore clean energy according to claim 3 is characterized in that: The lower end of the nacelle (113) is connected to the tower (12). The tower (12) comprises a tower column (121) and a built-in gas transmission pipeline (122) opened inside the tower column (121); The machine head exhaust port (119) is connected to the built-in gas pipeline (122) of the tower (12) through a pipeline.

5. The green seabed collection system driven by offshore clean energy according to claim 4 is characterized in that: The bottom end of the tower (12) is connected to the middle gas storage column platform (14). The intermediate gas storage column platform (14) comprises an outer floating body (141) arranged at the periphery, a built-in first gas storage transfer cabin (142) is arranged inside the outer floating body (141), and a first cabin air inlet (143) is arranged on the top of the built-in first gas storage transfer cabin (142). The bottom of the built-in gas transmission pipeline (122) is connected to the first gas storage transfer cabin (142) built into the intermediate gas storage column platform (14) via a first cabin air inlet (143); A first cabin exhaust port (144) is provided through a side wall of the built-in first gas storage transfer cabin (142) and the outer floating body (141), and the first cabin exhaust port (144) is connected to the photovoltaic unit and the gas storage cabin platform (2) through a connected pipeline.

6. The green seabed collection system driven by clean offshore energy according to claim 5, characterized in that: The photovoltaic unit and gas storage tank platform (2) comprises a floating platform (22), and the floating platform (22) is anchored on the seabed through a connected mooring system (4); A photovoltaic unit (21) is installed at the upper end of the floating platform (22), and a second gas storage tank (23) is installed at the lower end of the floating platform (22). A second gas storage compartment air leakage port (235) is provided on one side of the second gas storage compartment (23), the second gas storage compartment air leakage port (235) is connected to the second gas storage compartment (23), and an air pressure sensor (236), an electric valve (237) and a single chip microcomputer (238) are respectively installed inside the second gas storage compartment (23) and at an interface end close to the second gas storage compartment air leakage port (235).

7. A green seabed collection system driven by clean offshore energy according to claim 6, characterized in that: The second gas storage tank (23) comprises a second gas storage tank body (231) forming a closed gas storage space, a second gas storage tank air inlet (232) is provided on one end of the second gas storage tank body (231) close to the first tank exhaust port (144), the second gas storage tank air inlet (232) is connected to the first tank exhaust port (144) through a connected pipe pump system, and a one-way valve is further provided between the first tank exhaust port (144) and the pipe pump system of the second gas storage tank air inlet (232); A second gas storage tank exhaust port (234) is provided on the other side of the second gas storage tank body (231), and a speed regulating air pump (233) is installed in front of the second gas storage tank exhaust port (234); The photovoltaic unit and the gas storage tank platform (2) are connected to the seabed collection system (3) via a gas transmission pipeline and an electricity transmission pipeline.

8. The green seabed collection system driven by clean offshore energy according to claim 7, characterized in that: The seabed collection system (3) comprises a collection vessel (31), a lifting system (32), a relay station (33), a collection vehicle (34), a tailwater pipe (35) and a tailwater cooling system (36); The collection vessel (31) comprises a vortex tube (311) and a temperature difference energy power generation system (312); The lifting system (32) comprises a lifting pipe (321), an air ball (322) and a solenoid valve (323), wherein 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 chamber (361), a cooling chamber air inlet (362) and a cooling chamber air outlet (363); The collection vessel (31) and the collection vehicle (34) are connected via a lifting system (32) and a relay station (33), and the tailwater cooling system (36) is wrapped on the outer wall of the tailwater pipe (35) and is close to the middle pipe section of the gas transmission pipeline in the lifting system (32).

9. The green seabed collection system driven by clean offshore energy according to claim 8, characterized in that: The compressed air inlet opened on the vortex tube (311) is connected to the photovoltaic unit and the second air storage tank exhaust port (234) of the air storage tank platform (2) through the installed pipe pump system. The hot air flow outlet opened on the vortex tube (311) is connected to the heat source of the temperature difference energy power generation system (312) through a tube pump system; The cold air flow outlet provided on the pipe pump system is connected to 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 to the electromagnetic valve (323) of the lifting system (32) via a pipe pump system.

10. The green seabed collection system driven by clean offshore energy according to claim 6, characterized in that: The floating platform (22) and the second gas storage tank (23) are both made of corrosion-resistant materials.

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