Large offshore platform

Abstract

The invention discloses a large offshore platform, and belongs to the technical field of offshore platforms, the large offshore platform comprises an integrated platform, the integrated platform comprises a floating body, the top of the floating body is provided with a frame platform, and the frame platform is provided with an integrated control center house, a helicopter landing integrated platform, an integrated fan, an integrated photovoltaic panel, a hydrogen production assembly and an integrated breeding cage. Seawater is pumped into the seawater filtering device through the water suction pump and the pipeline to be purified, the purified water is pumped into the electrolysis device, the purified water is decomposed into oxygen and hydrogen according to the electrolysis principle, then the oxygen and the hydrogen are pumped into the gas collecting device to be stored, and the oxygen and the hydrogen can be conveniently transported to the shore through a follow-up ship; meanwhile, the electric energy for reclaimed water purification, water electrolysis and gas storage is supplied by an integrated fan and an integrated photovoltaic panel on the integrated platform for power generation; and redundant electric energy can provide energy for fish culture equipment and other equipment on the integrated platform.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore platforms, and in particular to a large offshore platform. Background Art

[0002] As a new energy storage method, renewable energy hydrogen production technology is an effective means to alleviate the problems of abandoned wind and light. In coastal areas, wind resources and water resources are very rich. Utilizing offshore renewable energy to produce hydrogen can make full use of resources and alleviate the problem of energy shortage.

[0003] At present, offshore power generation includes wind turbine power generation and photovoltaic power generation. Photovoltaic power stations are generally set in shallow waters, and wind turbine power generation is generally set in deep waters. When using offshore resources for power generation, an independent floating wind turbine needs to be configured, and a step-up rectification platform needs to be set up to form a relatively long offshore power transmission system for facilitating the transmission of electric energy to the onshore power grid. When using offshore renewable energy to produce hydrogen, that is, when using a deep-sea wind farm for electrolytic hydrogen production, an independent hydrogen production platform and a hydrogen transmission platform also need to be designed, and power is obtained by connecting with the step-up rectification platform through an underwater high-voltage cable. However, this method has a high cost and poor economy.

[0004] Based on the above, the present invention provides a large offshore platform suitable for the environment in deep-sea areas. Summary of the Invention

[0005] The present invention aims at the deficiencies existing in the prior art and provides a large offshore platform.

[0006] The technical solution for the present invention to solve the above technical problems is as follows: A large offshore platform includes an integrated platform. The integrated platform includes a floating body for providing buoyancy to the integrated platform. A framework platform is provided on the top of the floating body, and an integrated control center house, a helicopter landing integrated platform, integrated wind turbines, integrated photovoltaic panels, a hydrogen production assembly, and an integrated fish cage are provided on the framework platform. Among them: The integrated control center house is used for centrally controlling the integrated wind turbines, integrated photovoltaic panels, hydrogen production assembly, and integrated fish cage. The integrated wind turbines generate electricity using wind energy. The integrated photovoltaic panels generate electricity using solar energy. The hydrogen production assembly produces hydrogen or oxygen by electrolyzing water. The integrated fish cage is used for fish farming.

[0007] Further, the floating body includes floating boxes and floating cylinders. The floating cylinders are connected to the floating boxes, and one end of the floating cylinders away from the floating boxes is connected to the framework platform.

[0008] Furthermore, the integrated aquaculture cage includes a cage body, a top plate and a bottom plate. The top plate and the bottom plate are respectively arranged at the top and bottom of the cage body, and the top plate is detachably connected to the top of the cage body. A feeding port is formed on the top plate. A cavity is arranged inside the cage body for culturing fish, and a plurality of through holes are formed on the side of the cage body.

[0009] Furthermore, a panel is connected to the top plate, and the panel is used to open or close the feeding port.

[0010] Furthermore, a motor is arranged on the top plate. The output end of the motor is connected with a screw rod, and the screw rod extends downward to the bottom of the cage body. The screw rod is connected with a net plate through a screw sleeve, and the net plate is slidably connected with the screw rod. The shape of the net plate is adapted to the shape of the cage body, and the outer edge of the net plate contacts with the inner wall of the cage body.

[0011] Furthermore, the hydrogen production assembly includes a seawater filtration device, an electrolysis device and a gas collection device. The seawater filtration device is connected with a water pump and a water pumping pipeline. The gas collection device is connected with a control valve through an exhaust pipeline, and the control valve is connected with an external transport ship. The seawater filtration device, the electrolysis device and the gas collection device are sequentially connected through an intermediate pipeline, and the seawater filtration device, the electrolysis device and the gas collection device are all embedded on the frame platform through fixing plates.

[0012] Furthermore, the included angle between any two of the seawater filtration device, the electrolysis device and the gas collection device is 120°.

[0013] Furthermore, a plurality of integrated platforms are provided, and the plurality of integrated platforms are connected to each other through integrated connectors.

[0014] Furthermore, the integrated connector includes a side seat, a connecting ball, a connecting rod and a central seat. The side seat is arranged on the side of the frame platform. Connecting balls are respectively arranged at both ends of the connecting rod, and the connecting balls at both ends are respectively movably embedded inside the side seat and the central seat.

[0015] Furthermore, an installation groove is formed in the connecting ball, a spring is arranged in the installation groove, one end of the spring is connected with the bottom of the installation groove, and the other end of the spring is connected with the inner wall of the side seat or the central seat.

[0016] In summary, compared with the prior art, the beneficial effects of the above technical solutions are: (1) A large offshore platform provided by the present invention first uses a water pump and a water pumping pipeline to pump seawater into a seawater filtration device for purification treatment. The purified water is pumped into an electrolysis device, and the purified water is decomposed into oxygen and hydrogen by using the electrolysis principle. Then, these oxygen and hydrogen are pumped into a gas collection device for storage, which is convenient for subsequent ships to transport them to the shore. At the same time, the electric energy for the above-mentioned water purification - electrolyzed water - gas storage all comes from the integrated fan and integrated photovoltaic panel on the integrated platform to generate electricity. And the excess electric energy can provide energy for fish farming equipment and other equipment on the integrated platform. The present invention is applicable to the environment in the deep - sea and far - sea areas, can directly carry out electrolytic hydrogen production in the deep - sea and far - sea areas, and does not require a separate design of a hydrogen production platform and a hydrogen transportation platform. It converts clean electric energy into hydrogen and oxygen for storage, realizes the maximum utilization of clean energy, and reduces the loss of electric energy.

[0017] (2) A large offshore platform provided by the present invention. Multiple integrated platforms can be infinitely connected through integrated connectors, thereby ensuring the connection of multiple integrated platforms. The side seats and connecting balls in the integrated connectors are movable, which is convenient for adapting to the wave sway on the sea surface. When the wave sway on the sea surface is small, the spring presses tightly against the inner wall of the side seat, improving the connection firmness between adjacent two connecting rods. (3) A large offshore platform provided by the present invention. By opening the panel, fish can be put into and fished from the cage or food can be put in. When fish need to be fished, the seawater in the floating box and the floating cylinder can be controlled to be discharged, and then the entire integrated platform will float upward. Then, the motor drives the screw to rotate, and the screw drives the nut sleeve and the net plate to move upward. Among them, the upward movement of the net plate can drive the fish in the cage to move upward, reducing the activity space of the fish in the cage, and then facilitating subsequent fish fishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the embodiment of the present invention; Figure 2 is the overall structural schematic of the integrated platform in the embodiment of the present invention Figure 1 ; Figure 3 is the overall structural schematic of the integrated platform in the embodiment of the present invention Figure 2 ; Figure 4 is the structural schematic diagram of the integrated connector in the embodiment of the present invention; Figure 5 is the cross - sectional view highlighting the connecting ball, installation groove and spring in the embodiment of the present invention; Figure 6 is the exploded view highlighting the net plate, screw and cage in the embodiment of the present invention; Figure 7An exploded view highlighting the bottom plate, top plate and panel in the embodiment of the present invention; Figure 8 is Figure 6 an enlarged view of part A in Figure 9 A structural schematic diagram highlighting the seawater filtration device, electrolysis device and gas collection device in the embodiment of the present invention.

[0019] Explanation of reference numerals: 10, integrated platform; 20, integrated connecting piece; 101, floating box; 102, floating drum; 103, frame platform; 104, integrated control center house; 105, helicopter landing integrated platform; 106, integrated fan; 107, integrated photovoltaic panel; 108, integrated aquaculture cage; 109, hydrogen production assembly; 1081, cage body; 1082, top plate; 1083, bottom plate; 1084, panel; 1085, motor; 1086, screw rod; 1087, screw sleeve; 1088, mesh plate; 1091, seawater filtration device; 1092, electrolysis device; 1093, gas collection device; 1094, fixing plate; 1095, pumping pipeline; 1096, intermediate pipeline; 1097, exhaust pipeline; 201, side seat; 202, connecting ball; 203, connecting rod; 204, center seat; 2021, installation groove; 2022, spring; 2023, push plate. Detailed implementation manners

[0020] The principles and features of the present invention will be described below in conjunction with all the attached drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0021] The embodiment of the present invention discloses a large-scale offshore platform.

[0022] Refer to Figures 1-9, A large offshore platform includes multiple integrated platforms 10, and the multiple integrated platforms 10 are interconnected through integrated connectors 20. The integrated platform 10 includes a floating body, which is used to provide buoyancy to the integrated platform 10; a frame platform 103 is provided on the top of the floating body, and an integrated control center house 104, a helicopter landing integrated platform 105, an integrated wind turbine 106, an integrated photovoltaic panel 107, a hydrogen production assembly 109, and an integrated fish cage 108 are provided on the frame platform 103; wherein: the integrated wind turbine 106 generates electricity using wind energy; the integrated photovoltaic panel 107 generates electricity using solar energy; the hydrogen production assembly 109 produces hydrogen or oxygen using electrolyzed water; the integrated fish cage 108 is used for fish farming. The integrated control center house 104 is the control center of the integrated wind turbine 106, the integrated photovoltaic panel 107, the hydrogen production assembly 109, and the integrated fish cage 108; the information flow between each integration will be displayed in the integrated control center house 104, and electrical automation control is also performed on each integration.

[0023] The floating body includes a floating box 101 and floating cylinders 102. The floating cylinders 102 are fixedly connected to the floating box 101, and one end of the floating cylinder 102 away from the floating box 101 is fixedly connected to the frame platform 103. To ensure the overall stability, six floating cylinders 102 are provided in the embodiment of the present invention. Because in the embodiment of the present invention, both the floating box 101 and the frame platform 103 are in a hexahedron structure, six floating cylinders 102 are respectively placed at the corners of the floating box 101. Among them, the floating box 101, the floating cylinders 102, and the frame platform 103 will form a semi-submersible platform (this structure is prior art). When the semi-submersible platform reaches the working location, water is pumped into the floating box 101 and the floating cylinders 102, and the entire offshore platform descends, and the center of gravity will shift downward, so that the entire offshore platform can maintain a stable state and reduce the disturbing force of the seawater waves. An anchoring system (not shown in the figure) is provided at the bottom of the floating box 101 for fixing the offshore platform; seawater is pumped into the floating box 101 and the floating cylinders 102, and the two will sink; when fish need to be caught, the seawater in the floating box 101 and the floating cylinders 102 is pumped out, and then the entire integrated platform 10 will float.

[0024] The integrated wind turbine 106 is fixedly installed on the frame platform 103. Six integrated wind turbines 106 are provided, which are respectively placed at the corners of the frame platform 103. The integrated photovoltaic panel 107 is fixedly arranged between two adjacent integrated wind turbines 106 to achieve the purpose of generating electricity using solar energy; there are three integrated fish cages 108, which are arranged in an equilateral triangle, and the three integrated fish cages 108 are spaced along the six sides of the frame platform 103. The hydrogen production assembly 109 is located between two adjacent integrated fish cages 108 to produce hydrogen or oxygen using electrolyzed water.

[0025] Refer to Figures 2-4, there are multiple integrated connectors 20 provided to connect adjacent integrated platforms 10, specifically including side seats 201, connecting balls 202, connecting rods 203 and central seats 204. The side seats 201 are fixedly arranged on the side surface of the frame platform 103. Both ends of the connecting rod 203 are respectively provided with connecting balls 202, and the connecting balls 202 at both ends are respectively movably embedded in the interiors of the side seats 201 and the central seats 204. There are gaps between the connecting balls 202 and the side seats 201, and between the connecting balls 202 and the central seats 204, so as to facilitate the movement of the connecting balls 202. Multiple integrated platforms 10 are infinitely connected through the integrated connectors 20, which not only facilitates adaptation to the fluctuations of the sea level, but also improves the connectivity.

[0026] It should be noted that in the embodiment of the present invention, the length of the central seat 204 is about twice the length of the side seat 201. As Figure 4 shown, one side of the side seat 201 is connected with a connecting ball 202, and both sides of the central seat 204 are connected with connecting balls 202.

[0027] Refer to Figures 4-5 , the connecting ball 202 is provided with multiple mounting grooves 2021. In the embodiment of the present invention, three mounting grooves 2021 are opened on each connecting ball 202, which are respectively located at the top and both sides of the connecting ball 202. As Figure 5 shown, a spring 2022 is arranged in each mounting groove 2021. One end (fixed end) of the spring 2022 is fixedly connected to the bottom of the mounting groove 2021, and the other end (movable end) of the spring 2022 is connected to the inner wall of the side seat 201 or the central seat 204. When the sea wave shakes slightly, the spring 2022 presses tightly against the inner wall of the side seat 201, improving the connection firmness between two adjacent connecting rods 203. Multiple integrated platforms 10 are connected to each other by the integrated connectors 20. When there are wind and waves, the whole integrated connector 20 will shake. In order to prevent the connecting rod 203 from being broken by shaking, the connecting rod 203 should be movably connected to the side seat 201 or the central seat 204.

[0028] Refer to Figure 5 , further, the other end of the spring 2022 is provided with a push plate 2023. The push plate 2023 is T-shaped, and the push plate 2023 abuts against the inner wall of the side seat 201 or the central seat 204, further increasing the contact area between the connecting ball 202 and the side seat 201 or the central seat 204 through the push plate 2023. Specifically, the connecting balls 202 at both ends of the connecting rod 203 are in a ball connection manner. There is a spring 2022 inside the connecting ball 202 to push the push plate 2023, pressing it tightly against the inner wall of the side seat 201, forming a certain damping force to ensure that the swinging amplitude of the connecting rod 203 can be larger.

[0029] It should be noted that when the waves on the sea surface are shaking slightly, the spring 2022 is in a normal state, that is, the uncompressed state. The push plate 2023 is tightly pressed against the inner wall of the side seat 201. When the waves on the sea surface are shaking greatly, under the action of the waves, the entire integrated platform 10 will shake, and the side seat 201 will also shake accordingly. The position between the side seat 201 and the connecting ball 202 changes. The inner wall of the shaking side seat 201 will squeeze the push plate 2023. The push plate 2023 is forced to squeeze towards one end of the spring 2022, causing the spring 2022 to be compressed by the force. At this time, the contact between the push plate 2023 and the inner wall of the side seat 201 is not so tight, which is convenient for shaking with the waves, ensuring the soft connection between the integrated platforms 10 without disconnecting from each other.

[0030] The integrated wind turbine 106 is a vertical-axis wind power generation unit. The bottom of the vertical-axis wind power generation unit is fixedly installed with a hydraulic rod with adjustable height, and the hydraulic rod is fixedly installed on the frame platform 103.

[0031] The integrated photovoltaic panel 107 includes an adjustable inclination bracket, a solar photovoltaic panel, a photovoltaic inverter, and a storage battery. The solar photovoltaic panel is installed on the top of the adjustable inclination bracket, and the adjustable inclination bracket is fixedly installed on the frame platform 103. The number of integrated photovoltaic panels 107 is six, arranged in an annular and equally spaced manner.

[0032] Refer to Figures 6-8 , three integrated aquaculture cages 108 can be provided. Each integrated aquaculture cage 108 includes a cage body 1081, a top plate 1082, and a bottom plate 1083. In the embodiment of the present invention, the cage body 1081 is triangular, and it can also be called a triangular cage body. The middle of the cage body 1081 is hollow to facilitate placing fish. Through holes are provided on the three sides of the cage body 1081 to facilitate the entry of seawater and the flow of seawater. The size of the through holes does not need to be set too large to prevent fish from swimming away through the through holes; the top plate 1082 and the bottom plate 1083 are respectively provided at the top and bottom of the cage body 1081. The bottom of the cage body 1081 is sealed by the bottom plate 1083. The top plate 1082 is detachably connected to the cage body 1081 to facilitate opening the cage body 1081. The detachable connection method can be a snap-fit or a hinge, etc. When the top plate 1082 covers the top of the cage body 1081, the top plate 1082 and the frame platform 103 are on the same horizontal plane; a feeding port is provided on the top plate 1082 to facilitate the operator to put fish into the cage body 1081 through the feeding port.

[0033] A panel 1084 is also connected to the top plate 1082. One end of the panel 1084 is hinged to the top plate 1082. The panel 1084 is used to cover the feeding port to facilitate opening or closing the feeding port without disassembling the entire top plate 1082, so as to further improve the convenience of the operator when putting fish.

[0034] A motor 1085 is provided on the top plate 1082. The base of the motor 1085 is fixedly connected to the top plate 1082. A screw rod 1086 is fixedly provided on the output shaft of the motor 1085. The screw rod 1086 extends downward, that is, into the cage body 1081. The bottom end of the screw rod 1086 is rotatably connected to the inner wall of the bottom of the cage body 1081. A net plate 1088 is connected to the screw rod 1086 through a screw sleeve 1087. The net plate 1088 slides on the screw rod 1086 in the vertical direction. The net plate 1088 is horizontally arranged and is also in a triangular structure, which is adapted to the triangular shape of the cage body 1081. That is, when the net plate 1088 is located inside the cage body 1081, the outer edge of the net plate 1088 contacts the inner wall of the cage body 1081. Before placing the fish, start the motor 1085 to drive the screw rod 1086 to rotate, so that the net plate 1088 slides to the bottom of the cage body 1081, and then place the fish. When the fish need to be fished after growing up, the operator starts the motor 1085 again to drive the screw rod 1086 to rotate. The screw rod 1086 drives the net plate 1088 to move upward, so as to shorten the distance between the net plate 1088 and the top of the cage body 1081, thereby driving the fish to move upward continuously, reducing the activity space of the fish in the cage body 1081, and thus facilitating the operator to fish.

[0035] It should be noted that in the embodiment of the present invention, structures such as the screw rod 1086, the screw sleeve 1087, the net plate 1088, and the cage body 1081 all need to be made of anti-corrosion materials to reduce the corrosion of seawater and improve the service life.

[0036] Refer to Figure 3 and Figure 9 As shown in, the hydrogen production assembly 109 specifically includes a seawater filtration device 1091, an electrolysis device 1092, and a gas collection device 1093. The seawater filtration device 1091, the electrolysis device 1092, and the gas collection device 1093 are all embedded in the frame platform 103 through a fixing plate 1094. The included angle between any two of the seawater filtration device 1091, the electrolysis device 1092, and the gas collection device 1093 is 120°.

[0037] Among them, the seawater filtration device 1091 can refer to the prior art CN112408694B, a filtration device that can be used for seawater filtration, and the gas collection device 1093 can refer to CN218539844U, an electrolyzed water gas collection device.

[0038] Such as Figure 3As shown, the side of the seawater filtration device 1091 is connected by a water pump and a water pumping pipeline 1095 to facilitate pumping seawater into the seawater filtration device 1091 for filtration. The seawater filtration device 1091 and the electrolysis device 1092 are interconnected through an intermediate pipeline 1096. The electrolysis device 1092 and the gas collection device 1093 are also interconnected through the intermediate pipeline 1096. The side of the gas collection device 1093 is connected to a control valve through an exhaust pipeline 1097, and the control valve is connected to an external transport ship. The water pump and the water pumping pipeline 1095 pump seawater into the seawater filtration device 1091 for purification treatment. The purified water is pumped into the electrolysis device 1092. The electrolysis water technology is an existing technology, and the principle is as follows: In the electrolysis device 1092, the electrolytic cell decomposes water (H 2 O) into hydrogen (H 2 ) and oxygen (O 2 ). This process requires external electric energy to drive. In the electrolytic cell, water molecules undergo an electrochemical reaction under the action of direct current. At the cathode (negative electrode), a reduction reaction occurs, and water molecules gain electrons to generate hydrogen and hydroxide ions ( ); at the anode (positive electrode), an oxidation reaction occurs, and water molecules lose electrons to generate oxygen and hydrogen ions (H + ). The reaction equations are: Cathode: ; Anode: ; A proton exchange membrane is provided between the anode and the cathode. Then water decomposes into oxygen and hydrogen, and then these hydrogen and oxygen are pumped into the gas collection device 1093 for storage.

[0039] At the bottom center of the frame platform 103, a waste water collection integration is also fixedly installed. The waste water collection integration is respectively connected to the waste water tank (not shown in the figure) of the electrolysis device 1092 and the waste water tank of the integrated control center house 104.

[0040] The implementation principle of a large offshore platform provided by an embodiment of the present invention is as follows: During use, first use the water pump and the water pumping pipeline 1095 to pump seawater into the seawater filtration device 1091 for purification treatment. The purified water is pumped into the electrolysis device 1092, and the purified water is decomposed into oxygen and hydrogen by using the electrolysis principle. Then these oxygen and hydrogen are pumped into the gas collection device 1093 for storage, which is convenient for subsequent ships to transport them to the shore; At the same time, the electric energy for the above-mentioned water purification - electrolyzed water - gas storage all comes from the integrated fan 106 and the integrated photovoltaic panel 107 on the integrated platform 10 to generate electricity; and the excess electric energy can provide energy for the fish farming equipment and other equipment on the integrated platform 10; Multiple integrated platforms 10 can be infinitely connected through the integrated connectors 20, thereby ensuring the connection of multiple integrated platforms 10. The side seats 201 and the connecting balls 202 in the integrated connectors 20 are movable, facilitating adaptation to the wave fluctuations on the sea surface. When the wave fluctuations on the sea surface are small, the spring 2022 presses tightly against the inner wall of the side seat 201, improving the connection firmness between two adjacent connecting rods 203. By opening the panel 1084, fish and food can be put into and fished from the cage body 1081. When fish need to be fished, the seawater in the floating box 101 and the floating drum 102 can be discharged, and then the entire integrated platform 10 will float upward. Then, the servo reduction motor 1085 is driven to rotate the screw rod 1086, and the screw rod 1086 drives the nut sleeve 1087 and the net plate 1088 to move upward. The upward movement of the net plate 1088 can drive the fish in the cage body 1081 to move upward, reducing the activity space of the fish in the cage body 1081, and then facilitating subsequent fish fishing.

[0041] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A large offshore platform, comprising an integrated platform (10), characterized in that: The integrated platform (10) comprises a floating body, and the floating body is used to provide buoyancy to the integrated platform (10); a frame platform (103) is provided on the top of the floating body, and an integrated control center house (104), a helicopter landing integrated platform (105), an integrated wind turbine (106), an integrated photovoltaic panel (107), a hydrogen production assembly (109) and an integrated breeding cage (108) are provided on the frame platform (103); wherein: The integrated control center house (104) is used to centrally control the integrated wind turbine (106), the integrated photovoltaic panel (107), the hydrogen production assembly (109) and the integrated breeding cage (108); the integrated wind turbine (106) generates electricity using wind energy; the integrated photovoltaic panel (107) generates electricity using solar energy; the hydrogen production assembly (109) generates hydrogen or oxygen using electrolyzed water; and the integrated breeding cage (108) is used to breed fish.

2. A large offshore platform according to claim 1, characterized in that: The floating body comprises a buoyancy box (101) and a pontoon (102), wherein the pontoon (102) is connected to the pontoon (101), and one end of the pontoon (102) away from the pontoon (101) is connected to a frame platform (103).

3. A large offshore platform according to claim 1, characterized in that: The integrated breeding cage (108) comprises a cage body (1081), a top plate (1082) and a bottom plate (1083); the top plate (1082) and the bottom plate (1083) are respectively arranged at the top and the bottom of the cage body (1081); the top plate (1082) is detachably connected to the top of the cage body (1081); a delivery port is provided on the top plate (1082); a cavity is provided inside the cage body (1081) for breeding fish; and a plurality of through holes are provided on the side of the cage body (1081).

4. A large offshore platform according to claim 3, characterized in that: The top plate (1082) is connected to a panel (1084), and the panel (1084) is used to open or close the delivery port.

5. A large offshore platform according to claim 3, characterized in that: The top plate (1082) is provided with a motor (1085), the output end of the motor (1085) is connected to a screw rod (1086), the screw rod (1086) extends downward to the bottom of the cage body (1081), the screw rod (1086) is connected to a mesh plate (1088) through a screw sleeve (1087), the mesh plate (1088) is slidably connected to the screw rod (1086), the shape of the mesh plate (1088) is adapted to the shape of the cage body (1081), and the outer edge of the mesh plate (1088) is in contact with the inner wall of the cage body (1081).

6. A large offshore platform according to claim 1, characterized in that: The hydrogen production assembly (109) comprises a seawater filter (1091), an electrolysis device (1092) and a gas collection device (1093); the seawater filter (1091) is connected to a water pump and a water pumping pipeline (1095); the gas collection device (1093) is connected to a control valve via an exhaust pipeline (1097); and the control valve is connected to an external transport ship; the seawater filter (1091), the electrolysis device (1092) and the gas collection device (1093) are connected in sequence via an intermediate pipeline (1096); and the seawater filter (1091), the electrolysis device (1092) and the gas collection device (1093) are all embedded in the frame platform (103) via a fixing plate (1094).

7. A large offshore platform according to claim 6, characterized in that: The angle between the seawater filtering device (1091), the electrolysis device (1092) and the gas collecting device (1093) is 120°.

8. A large offshore platform according to claim 1, characterized in that: A plurality of the integrated platforms (10) are provided, and the plurality of integrated platforms (10) are interconnected via integrated connectors (20).

9. A large offshore platform according to claim 8, characterized in that: The integrated connecting component (20) comprises a side seat (201), a connecting ball (202), a connecting rod (203) and a center seat (204); the side seat (201) is arranged on the side of the frame platform (103); the two ends of the connecting rod (203) are respectively provided with connecting balls (202), and the connecting balls (202) at the two ends are respectively movably embedded in the inside of the side seat (201) and the center seat (204).

10. A large offshore platform according to claim 9, characterized in that: The connecting ball (202) is provided with a mounting groove (2021), a spring (2022) is provided in the mounting groove (2021), one end of the spring is connected to the bottom of the mounting groove (2021), and the other end of the spring (2022) is connected to the inner wall of the side seat (201) or the center seat (204).

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