A hybrid deep-sea offshore floating platform

Abstract

The present invention discloses a hybrid deep-sea offshore floating platform, which includes an equipment carrying tray and an oil storage tank. An equipment cabin and a wind turbine are installed above the equipment carrying tray, and an anti-vibration floating cylinder is connected below. The lower end of the anti-vibration floating cylinder is installed on the hatch cover of the oil storage tank. A through hole is opened in the middle of the carrying tray. The equipment cabin includes an oil pump, a generator, a rectifier, a storage battery and a hydraulic pump which are connected to each other. The generator and the storage battery are connected to a first controller, and the hydraulic pump is connected to a second controller. A sensor wirelessly transmitting with the second controller is arranged in the anti-vibration floating cylinder. The rectifier is connected to the wind turbine through a transmission cable, the oil pump is connected to the oil storage tank through an oil delivery pipeline, one end of the hydraulic pump is connected to the anti-vibration floating cylinder, and the other end leads into the oil storage tank. The equipment cabin is connected to a load. This platform can provide a stable working environment for the carried equipment, and combined with the tension leg structure, the platform system is made more stable. The oil storage tank provides diesel energy for the platform system, and at the same time provides buoyancy and ballast functions.

Description

Technical Field

[0001] The present invention relates to an offshore floating platform, and more particularly to a hybrid offshore floating platform. Background Art

[0002] Due to the harsh marine environment, traditional single - energy power generation devices cannot meet the requirements of marine environment power generation due to their own or environmental factors. In the process of developing and utilizing marine energy, two or more kinds of marine energy can be developed and utilized simultaneously to achieve mutual supplementation of multiple energies, thereby improving the utilization rate of marine energy. There are certain deficiencies in current multi - energy platforms. First, the design scheme of existing platforms places some power generation equipment underwater. This design is not conducive to the maintenance and repair of equipment, compresses the storage space of oil sources, and cannot achieve system ballast adjustment. Second, in the open - sea area, the waves are large, and the swaying of the platform easily causes failures in the power supply equipment during operation, reducing the power generation efficiency of the system. Summary of the Invention

[0003] Object of the Invention: The object of the present invention is to provide a hybrid offshore floating platform that is easy to repair, has a stable platform, and a high utilization rate of marine energy.

[0004] Technical Solution: The hybrid offshore floating platform described in the present invention includes an equipment - carrying tray and an oil storage tank. An equipment cabin and a wind turbine are installed above the equipment - carrying tray, and an anti - shock floating cylinder is connected below. The lower end of the anti - shock floating cylinder is installed on the hatch cover of the oil storage tank. A through - hole for connecting an oil delivery pipeline is opened in the middle of the carrying tray. The equipment cabin includes an oil pump, a generator, a rectifier, a storage battery, and a hydraulic pump that are connected to each other. The generator and the storage battery are connected to a first controller, and the hydraulic pump is connected to a second controller. A sensor wirelessly transmitting with the second controller is arranged in the anti - shock floating cylinder. The rectifier is connected to the wind turbine through a transmission cable. The oil pump is connected to the oil storage tank through an oil delivery pipeline. One end of the hydraulic pump is connected to the anti - shock floating cylinder, and the other end leads into the oil storage tank. The equipment cabin is connected to a load.

[0005] Among them, the oil storage tank includes two concentric oil tanks, with the inner one being the diesel oil tank and the outer one being the hydraulic oil tank; it also includes a mooring system, which includes a tension leg and an anchoring structure. The anchoring structure is directly connected to the seabed, and the tension leg is installed on the surface of the oil storage tank through a mounting surface. The cross-section of the tension leg is a right trapezoid with a variable cross-section; the anti-shock buoy includes a first buoy, a second buoy, and a third buoy. The first buoy includes 2 pistons, and a connecting rod is provided between the 2 pistons. The pistons are connected to the tray through the connecting rod. The second buoy and the third buoy have the same structure, including a movable hinge and a connecting rod slider. An installation guide rail is provided at the connection between the lower part of the equipment-carrying tray and the connecting rod slider. The movable hinge includes an upper connecting rod, a lower connecting rod, and a hinge connecting the upper connecting rod and the lower connecting rod; a protective cover is provided at the connection between the lower part of the equipment-carrying tray and the anti-shock buoy; the generator and the battery are connected to the first controller, the hydraulic pump is connected to the second controller, and a sensor wirelessly transmitting with the second controller is provided inside the anti-shock buoy.

[0006] Advantages: Compared with the prior art, the significant advantages of the present invention are as follows: 1. The anti-shock buoy can provide a stable working environment for the equipment carried by the tray. Combined with the tension leg structure, the platform system is made more stable; 2. The oil storage tank is located at the lower part of the device, which can provide diesel energy for the platform system, provide the main buoyancy at the same time, and has a ballast effect. Brief Description of the Drawings

[0007] Figure 1 is the structural schematic diagram of the present invention;

[0008] Figure 2 is the schematic diagram of the connection of the components of the present invention;

[0009] Figure 3 is the front view of the equipment-carrying tray;

[0010] Figure 4 is the bottom view of the equipment-carrying tray;

[0011] Figure 5 is the structural schematic diagram of the anti-shock buoy;

[0012] Figure 6 is the three-dimensional structure diagram of the tension leg;

[0013] Figure 7 is the three-dimensional top view of the tension leg. Detailed Embodiment

[0014] Such as Figure 1 、 Figure 2As shown in the figure, the hybrid deep-sea offshore floating platform includes an equipment mounting tray 1, an oil storage tank 4, and a mooring system 5. Above the equipment mounting tray 1, there is an equipment cabin 6 and a wind turbine 25. Below it, there is an anti-shock floating cylinder 2 connected. The lower end of the anti-shock floating cylinder 2 is installed on the hatch cover 8 of the oil storage tank 4. The equipment cabin 6 is connected to a load 26. The equipment cabin 6 includes an oil pump 61, a generator 62, a rectifier 63, a storage battery 64, and a hydraulic pump 65 that are interconnected. The generator 62 and the storage battery 64 are connected to a first controller 66. The hydraulic pump 65 is connected to a second controller 67, and the second controller 67 is powered by the storage battery 64. The oil storage tank 4 includes two concentric oil tanks. The inner one is a diesel tank 20, and the outer one is a hydraulic oil tank 21. In the middle of the mounting tray 1, there is a through hole 10 for connecting an oil delivery pipeline 3. The oil pump 61 is connected to the diesel tank 20 in the oil storage tank 4 through the oil delivery pipeline 3. The oil pump 61 provides energy for the generator 62. One end of the hydraulic pump 65 is connected to the anti-shock floating cylinder 2, and the other end leads into the hydraulic oil tank 21 in the oil storage tank 4. The rectifier 63 is connected to the wind turbine 25 through a transmission cable 24. The wind energy generated by the wind turbine 25 is converted into electrical energy through the built-in generator of the wind turbine 25 and stored in the storage battery 64 through the rectifier 63. As Figure 1 , Figure 2 , Figure 6 , Figure 7 shown, the mooring system 5 includes a tension leg 22 and an anchor structure 23. The anchor structure 23 is directly connected to the seabed. The tension leg 22 is installed on the surface of the oil storage tank 4 through a mounting surface 9. The cross-section of the tension leg 22 is a right trapezoid with a variable cross-section. As Figure 4 , Figure 5 shown, the anti-shock floating cylinder 2 includes a first floating cylinder 13, a second floating cylinder 14, and a third floating cylinder 15. The first floating cylinder 13 includes 2 pistons 16 and a connecting rod 17. There is a connecting rod 17 between the 2 pistons 16. The pistons 16 are connected to the tray 1 through the connecting rod 17. Inside the first floating cylinder 13, there is a sensor that wirelessly transmits with the controller 67. The second floating cylinder 14 and the third floating cylinder 15 have the same structure, including a movable hinge 18 and a connecting rod slider 19. At the connection between the lower part of the equipment mounting tray 1 and the connecting rod slider 19, there is an installation guide rail 11, and it is installed on the installation guide rail 11 with a certain degree of freedom. The movable hinge 18 includes an upper connecting rod 181, a lower connecting rod 182, and a hinge 183 connecting the upper connecting rod 181 and the lower connecting rod 182. One degree of freedom is released to avoid movement interference of the upper connecting rod 181. As Figure 3 shown, at the connection between the lower part of the equipment mounting tray 1 and the anti-shock floating cylinder 2, there is a protective cover 12 to prevent seawater from corroding the anti-shock floating cylinder 2.

[0015] In use, the fan 25 operates continuously. Wind energy is transferred by the blades of the fan 25 to the main shaft of the fan 25 to generate electrical energy, which is then input into the rectifier 63 through the transmission cable 24 and then transferred to the battery 64. Diesel is stored in the diesel tank 20. Under the action of the oil pump 61, diesel is transported through the oil supply pipeline 3 to the generator 62. Electrical energy generated by the generator 62 is transmitted to the rectifier 63 and then transferred to the battery 64. The generator 62 provides a compensating output when the output power of the fan 25 is insufficient. The battery 64 and the generator 62 are connected to the first controller 66. When the output power is insufficient, the first controller 66 automatically turns on the generator 62 and the oil pump 61 to start hybrid power supply. The battery 64 is connected to the load 26 to supply power to the load 26. When the equipment-mounted tray 1 shakes violently, the sensor in the first float 13 sends a signal to the second controller 67. The second controller 67 sends a signal to the hydraulic pump 65, and the hydraulic pump 65 starts to work and injects hydraulic oil from the hydraulic oil tank 21 into the first float 13 to realize the lifting of the first float 13. The sensor continuously transmits the hydraulic oil position and shaking information to the second controller 67, so as to keep the platform level. The hinge structures of the second float 14 and the third float 15 ensure the degrees of freedom of the system.

Claims

1. A hybrid deep-sea offshore floating platform, characterized in that It includes an equipment mounting tray (1) and an oil storage tank (4). Above the equipment mounting tray (1), there are an equipment cabin (6) and a fan (25). Below it, there is an anti-vibration floating drum (2) connected. The lower end of the anti-vibration floating drum (2) is installed on the hatch cover (8) of the oil storage tank (4). In the middle of the mounting tray (1), there is a through hole (10) for connecting the oil delivery pipeline (3). The equipment cabin (6) includes an oil pump (61), a generator (62), a rectifier (63), a storage battery (64) and a hydraulic pump (65) which are connected to each other. The generator (62) and the storage battery (64) are connected to a first controller (66). The hydraulic pump (65) is connected to a second controller (67). Inside the anti-vibration floating drum (2), there is a sensor that wirelessly transmits with the second controller (67). The rectifier (63) is connected to the fan (25) through a transmission cable (24). The oil pump (61) is connected to the oil storage tank (4) through the oil delivery pipeline (3). One end of the hydraulic pump (65) is connected to the anti-vibration floating drum (2), and the other end leads into the oil storage tank (4). The equipment cabin (6) is connected to a load (26); The oil storage tank (4) includes two concentric oil tanks. The inner one is a diesel oil tank (20), and the outer one is a hydraulic oil tank (21). It also includes a mooring system (5). The mooring system (5) includes a tension leg (22) and an anchoring structure (23). The anchoring structure (23) is directly connected to the seabed. The tension leg (22) is installed on the surface of the oil storage tank (4) through a mounting surface (9). The cross-section of the tension leg (22) is a right trapezoid with a variable cross-section; The anti-vibration floating drum (2) includes a first floating drum (13), a second floating drum (14) and a third floating drum (15). The first floating drum (13) includes two pistons (16). Between the two pistons (16), there is a connecting rod (17). The pistons (16) are connected to the tray (1) through the connecting rod (17). The second floating drum (14) and the third floating drum (15) have the same structure, including a movable hinge (18) and a connecting rod slider (19). At the connection between the lower part of the equipment mounting tray (1) and the connecting rod slider (19), there is an installation guide rail (11). The movable hinge (18) includes an upper connecting rod (181), a lower connecting rod (182) and a hinge (183) connecting the upper connecting rod (181) and the lower connecting rod (182).

2. The hybrid deep-sea offshore floating platform according to claim 1, wherein At the connection between the lower part of the equipment mounting tray (1) and the anti-vibration floating drum (2), there is a protective cover (12).

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