Floating type offshore wind power platform and wind driven generator

Abstract

The invention discloses a floating type offshore wind power platform and a wind driven generator, and the floating type offshore wind power platform comprises a middle column which is provided with at least two connecting assemblies in the circumferential direction; the first end of the side column is provided with a locking assembly which is assembled and connected with the connecting assembly, and the side column is of a cavity structure; the adjusting rod is assembled at the axial bottom of the middle column, the adjusting rod is of a cavity structure and is slidably connected with a telescopic rod, the telescopic rod is driven by a power part to move in the axial direction of the adjusting rod, and a ballast cylinder is fixedly arranged at the end, away from the adjusting rod, of the telescopic rod. Through a modular assembly structure of the connecting assembly and the locking assembly, split transportation and on-site convenient assembly of the floating type offshore wind power platform are achieved, the transportation and maintenance cost is reduced, meanwhile, the adjusting rod assembled at the bottom of the middle column is arranged so that height adjustment of the ballast cylinder can be achieved, and gravity center adjustment of the floating type offshore wind power platform can be met; and the adaptability of the floating type offshore wind power platform to different sea surface environments is improved.

Description

Technical Field

[0001] The present application relates to the technical field of wind power equipment, and in particular to a floating offshore wind power platform and a wind turbine. Background Art

[0002] A floating wind power platform is an offshore wind turbine that is supported and anchored to the seabed by buoyancy. It needs to support the wind turbine tower and unit through buoyancy, and maintain the stability of the platform through ballast water or ballast. However, since the diameter of the wind turbine blades that the floating wind power platform needs to support can reach more than 200 meters, the corresponding floating wind power platform needs to be larger in size to meet the buoyancy requirements. At the same time, the floating wind power platform has a special shape and needs to be assembled in the complex environment of the sea surface. Therefore, its transportation and installation process requires the use of large special equipment such as wind turbine ships, which makes the transportation and lifting process complicated and costly. In addition, it is impossible to replace local structures during inspection and maintenance, resulting in the risk of the entire machine being shut down for maintenance in the event of a serious local failure, which affects the inspection and maintenance cost and the power generation efficiency of the wind power generation device.

[0003] Therefore, how to reduce the assembly, transportation and maintenance costs of floating offshore wind power platforms and improve their operational stability is an urgent problem that technical personnel in this field need to solve. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a floating offshore wind power platform and a wind turbine, so as to reduce the assembly, transportation and maintenance costs of the floating offshore wind power platform and improve its operational stability.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A floating offshore wind power platform, comprising:

[0007] A center column, wherein at least two connection components are provided around the center column;

[0008] A side column, wherein a locking assembly is provided at a first end of the side column, the locking assembly is assembled and connected to the connecting assembly, the side column is a cavity structure and a sealing cover is provided at a second end;

[0009] The adjusting rod is assembled and arranged at the bottom of the central column in its axial direction. The adjusting rod is a cavity structure and is slidably connected to a telescopic rod. The telescopic rod is driven by a power unit to move along the axial direction of the adjusting rod. A ballast cylinder is fixedly arranged at one end of the telescopic rod away from the adjusting rod.

[0010] Preferably, in the above-mentioned floating offshore wind power platform, a tilt sensor and a volume-adjustable adjustment cylinder are provided in the central column, the adjustment cylinder is sealed and independently connected to the inner cavity of each of the side columns through a connecting pipe, and the connecting pipe is provided with a solenoid valve for controlling the opening and closing of the corresponding pipeline;

[0011] The tilt sensor is communicatively connected to the solenoid valve. The tilt sensor is used to detect the tilt amplitude of the center column. When the center column exceeds the preset tilt amplitude, the solenoid valve is fed back to adjust the connecting pipe on the side with a lower horizontal height to open, and the other connecting pipes are closed. At the same time, the regulating cylinder is fed back to increase its volume to absorb the liquid in the side column connected thereto.

[0012] Preferably, in the above-mentioned floating offshore wind power platform, the regulating cylinder includes a piston cylinder and a piston rod, one end of which extends into the piston cylinder and is sealed with the inner wall of the piston cylinder; the piston rod is transmission-connected to a drive assembly to move along the axial direction of the piston cylinder, and the drive assembly is communicatively connected to the tilt sensor.

[0013] Preferably, in the above-mentioned floating offshore wind power platform, the end of the piston rod away from the piston cylinder is a T-shaped structure, and is provided with a limiting groove perpendicular to the axis of the piston cylinder; the driving assembly includes a driving motor, a turntable and a protruding rod, the driving motor drives the turntable to rotate, the protruding rod is fixed on the turntable and passes through the limiting groove, the piston rod passes through the fixed plate to be limited to the axial position of the piston cylinder, and is driven by the protruding rod to move along the axial direction of the piston cylinder.

[0014] Preferably, in the above-mentioned floating offshore wind power platform, the connecting pipe includes a first joint pipe arranged on the adjusting cylinder, a second joint pipe arranged on the side column, and an assembly pipe connecting the first joint pipe and the second joint pipe, and the assembly pipe passes through the side wall of the middle column and is bonded and sealed to the side wall of the middle column.

[0015] Preferably, in the above-mentioned floating offshore wind power platform, grouting holes and exhaust holes are arranged at intervals on the top of the ballast cylinder.

[0016] Preferably, in the above-mentioned floating offshore wind power platform, fin stabilizers are symmetrically provided on the side columns, the fin stabilizers are arranged perpendicular to the axis of the center column, and the fin stabilizers are hollow structures and communicate with the inner cavity of the side columns.

[0017] Preferably, in the above-mentioned floating offshore wind power platform, the outer wall of the center column is provided with locking ears, the number of the locking ears is equal to the number of the connecting components, and the locking ears are spaced apart and arranged one-to-one in the axial direction of the center column.

[0018] Preferably, in the above-mentioned floating offshore wind power platform, the locking assembly includes a female sleeve, and the connecting assembly includes a male plug and is plugged into and matched with the female sleeve.

[0019] Preferably, in the above-mentioned floating offshore wind power platform, the male plug is provided with a wedge block, and the female sleeve is provided with a slot for the wedge block to be inserted; a card slot is provided on the wedge block, and a locking block that can be locked with the card slot is provided in the slot, and the locking block is floatingly arranged in a direction parallel to the axis of the center column.

[0020] Preferably, in the above-mentioned floating offshore wind power platform, one end of the locking block abuts against a spring, and the spring is clamped by the locking block and the abutment plate; a threaded rod is threadedly connected to the abutment plate, and the threaded rod is rotatably arranged in the female sleeve through a bearing, and one end of the threaded rod is fixedly connected to a handwheel.

[0021] Preferably, in the above-mentioned floating offshore wind power platform, a transparent observation window is provided on the female sleeve, and the observation range of the observation window includes the axial height range of the threaded rod.

[0022] Preferably, in the above-mentioned floating offshore wind power platform, the locking assembly further comprises a sealing cover covering the abutment plate, the threaded rod and the hand wheel, and the sealing cover is fixedly connected to the female sleeve and is padded with a sealing ring.

[0023] Preferably, in the above-mentioned floating offshore wind power platform, the contact surfaces of the locking block and the wedge block have the same inclination.

[0024] A wind turbine comprises a wind turbine group and any one of the above floating offshore wind power platforms.

[0025] It can be seen from the above technical solutions that one aspect of the present disclosure provides a floating offshore wind power platform, which mainly includes a center column, side columns and an adjustment rod. Unlike the currently commonly used integrated welded structure, the side columns and the adjustment rod can be detachably assembled on the center column. Specifically, the center column is used to support the wind turbine, and the center column is provided with at least two connecting assemblies in its circumference to provide an assembly position for the side columns, and preferably three or more connecting assemblies are provided to enhance the tilt resistance of the center column to surges in all directions; a locking assembly is correspondingly provided on the side column, and the locking assembly can be assembled and connected with the connecting assembly by plugging, snapping or flange connection, and the side column is a cavity structure and a sealing cover is provided at the second end. Before the floating offshore wind power platform is launched, appropriate ballast is poured into the inside of the side column through the sealing cover position. The water body can be adjusted to adjust the counterweight of the side column, so that after the wind turbine on the top of the middle column is installed, the launching depth of the floating offshore wind power platform can be adjusted to meet the floating requirements of the wind turbine; the assembled middle column and side columns can be transported independently and assembled on site before launching, without the need for special large-scale transportation and lifting equipment, thereby reducing transportation costs; at the same time, when some side columns are damaged during use, a single set of connection components and locking components can be unlocked, and a single set of side columns can be replaced, which has lower maintenance costs than the overhaul and replacement of the entire machine. On this basis, the center column is also equipped with an adjusting rod at its axial bottom, which can also be transported independently from the center column and assembled on site before launching. At the same time, the adjusting rod is a hollow structure and a telescopic rod is slidingly arranged inside. The telescopic rod is driven by a power unit to realize the position movement along the axis of the adjusting rod, and the end of the telescopic rod away from the adjusting rod is fixed with a ballast cylinder. The ballast cylinder is a load structure set underwater by the floating offshore wind power platform. The floating offshore wind power platform can adjust the launching depth of the ballast cylinder according to different operating conditions, such as towing, power generation and tilting extreme conditions, so as to adjust the center of gravity height of the floating offshore wind power platform and adjust the stability of the floating offshore wind power platform to adapt to more complex sea surface use environment. The above structure configures the side columns and adjustment rods as detachable structures based on the center column, so that the floating offshore wind power platform can be disassembled into small components for transportation and assembly before launching. This eliminates the need for large special equipment during transportation and installation, reducing the high cost of transportation and lifting. At the same time, due to the modular design, it is also convenient for the mass production of parts and components of the floating offshore wind power platform and the subsequent replacement of individual parts, thereby reducing operation and maintenance costs.

[0026] Another aspect of the present disclosure provides a wind turbine including the above-mentioned floating offshore wind power platform, which also has the technical effects of the above-mentioned floating offshore wind power platform and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 This is a schematic structural diagram of a floating offshore wind power platform before assembly provided by an embodiment of the present disclosure;

[0029] Figure 2 This is a bottom-up schematic diagram of an assembled floating offshore wind power platform provided by an embodiment of the present disclosure;

[0030] Figure 3 Schematic diagram of the internal structure of the center column;

[0031] Figure 4 This is a schematic diagram of the connection between the male plug and the female socket before assembly;

[0032] Figure 5 This is a schematic diagram of the cross-sectional structure of the male plug and female socket before assembly.

[0033] in:

[0034] 10 - center column; 110 - connection assembly; 1110 - male plug; 1120 - wedge block; 1130 - slot; 120 - tilt sensor; 130 - solenoid valve; 140 - piston cylinder; 150 - piston rod; 1510 - limit slot; 1520 - fixing plate; 160 - drive motor; 170 - turntable; 180 - protruding rod; 190 - locking lug;

[0035] 20-Jib; 210-Locking assembly; 2110-Female sleeve; 2120-Slot; 2130-Locking block; 2140-Spring; 2150-Abutment plate; 2160-Threaded rod; 2170-Handwheel; 2180-Observation window; 2190-Sealing cover; 220-Sealing cover; 230-Fin stabilizer;

[0036] 30-adjusting rod; 310-telescopic rod; 320-power unit; 330-ballast cylinder; 3310-grouting hole; 3320-exhaust hole;

[0037] 40-connecting pipe; 410-first joint pipe; 420-second joint pipe; 430-assembly pipe;

[0038] 50-back panel; 60-battery; 70-circuit control board. DETAILED DESCRIPTION

[0039] The core of this application is to disclose a floating offshore wind power platform and a wind turbine to reduce the assembly, transportation and maintenance costs of the floating offshore wind power platform and improve its operational stability.

[0040] In order to help those skilled in the art better understand the present invention, the following embodiments of the present invention are described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the invention as described in the claims. Furthermore, the entire contents of the configurations shown in the following embodiments are not limited to those necessary for the invention as described in the claims.

[0041] like Figure 1 and Figure 2 As shown, the embodiment of the present disclosure provides a floating offshore wind power platform to achieve the floating of wind turbines on the sea surface. Specifically, the floating offshore wind power platform mainly includes a center column 10, a side column 20 and an adjustment rod 30, wherein the center column 10 is used to directly connect and support the wind turbine, and at least two connection components 110 are evenly arranged on its circumference to provide assembly positions for the side columns 20. It should be noted that the side columns 20 are used to provide a buoyancy basis for the center column 10, and cooperate with the center column 10 to resist the tilting effect of surges, while the cooperation structure of a single side column 20 and the center column 10 cannot meet the complex surge force resistance effect and will still produce deflection under the action of surges. The two side columns 20 can be combined with the center column 10 to form a triangular structure, thereby having the effect of resisting forces in all directions. It should also be noted that three or more connecting components 110 are preferably provided, and the connecting components 110 are evenly arranged around the center column 10, so that the buoyancy support and anti-sway support effects of each side column 20 on the center column 10 are more uniform, ensuring that the center column 10 has a tilting resistance effect against surge effects in all directions.

[0042] The side columns 20 are assembled and connected to the center column 10, which specifically includes a locking assembly 210 that cooperates with the connecting assembly 110. It should be noted that the locking assembly 210 can be assembled and connected to the connecting assembly 110 by plugging, snapping or flange connection. Unlike the currently common welded integrated structure, the side columns 20 and the center column 10 can be transported independently and assembled on-site before launching. There is no need for special large-scale transportation and lifting equipment, which solves the problem of high transportation costs caused by the large size of the overall structure.

[0043] At the same time, the side column 20 is a hollow structure and a sealing cover 220 is provided at the second end. Before the floating offshore wind power platform is launched, appropriate ballast water can be poured into the inside of the side column 20 through the position of the sealing cover 220, so as to adjust the counterweight of the side column 20. The ballast water poured on site can adjust the ballast water volume according to the actual operating conditions, and adjust the launching depth of the floating offshore wind power platform under actual working conditions to meet the floating requirements of the wind turbine.

[0044] It should be noted that the assembled central column 10 and side columns 20 can be transported independently and assembled on site before launching, which reduces transportation costs. In addition, during use, if some side columns 20 are damaged, a single set of connecting components 110 and locking components 210 can be unlocked and a single set of side columns 20 can be replaced, which has lower maintenance costs compared to the overhaul and replacement of the entire machine.

[0045] On this basis, in order to improve the adaptability of the floating offshore wind power platform to different sea surface working conditions and improve its universality, the middle column 10 is also equipped with an adjustment rod 30 at its axial bottom. It should be noted that the adjustment rod 30 can also be transported independently from the middle column 10 and assembled on site before launching. The adjusting rod 30 is specifically a cavity structure, in which a telescopic rod 310 is slidably provided inside the cavity, and the telescopic rod 310 is driven by the power unit 320 to achieve position movement along the axis of the adjusting rod 30, and a ballast cylinder 330 is fixedly provided at the end of the telescopic rod 310 away from the adjusting rod 30. The ballast cylinder 330 is a load structure set underwater by the floating offshore wind power platform. Ballast materials such as concrete can be set inside the ballast cylinder to lower the overall center of gravity when the floating offshore wind power platform is launched, thereby improving the stability of the overall structure. At the same time, the floating offshore wind power platform can adjust the launching depth of the ballast cylinder 330 according to different operating conditions, such as towing, power generation and tilting extreme conditions, so as to dynamically adjust the center of gravity height of the floating offshore wind power platform, and adapt to more complex sea surface use environment, thereby improving the versatility of the floating offshore wind power platform provided by the embodiment of the present disclosure.

[0046] It should be noted that in the floating offshore wind power platform provided in the embodiment of the present disclosure, the side columns 20 and the adjustment rods 30 are both configured as detachable matching structures based on the central column 10, so that the floating offshore wind power platform can be disassembled into small components for transportation and assembly before launching, thereby achieving the purpose of not requiring the use of large special equipment during transportation and installation, reducing the high cost of transportation and lifting. At the same time, due to the modular design, it is also convenient for the batch production of parts of the floating offshore wind power platform and the subsequent replacement of individual parts, thereby reducing operation and maintenance costs.

[0047] In order to further improve the adaptability of the floating offshore wind power platform to the complex sea surface environment and enhance the stability of the power generation process of the wind turbine, in some embodiments of the present disclosure, a tilt sensor 120 and a volume-adjustable adjustment cylinder are provided in the middle column 10, wherein the tilt sensor 120 is provided inside the middle column 10 to avoid erosion and damage caused by the external environment, and at the same time can directly feedback the status of the middle column 10 and detect the tilt amplitude of the middle column 10 in real time.

[0048] The adjusting cylinder is configured as a volume-adjustable sealing structure, which can realize the volume change of the adjusting cylinder by arranging a driving motor 160 or a hydraulic cylinder inside or outside to drive the structure of at least one side of the adjusting cylinder to move. At the same time, the adjusting cylinder is independently connected to the inner cavity of each side column 20 through a connecting tube 40. Preferably, the number of connecting tubes 40 and side columns 20 is the same, that is, the inner cavity of each side column 20 is connected to different positions on the circumference of the adjusting cylinder through the connecting tube 40.

[0049] Correspondingly, the connecting pipe 40 is provided with a solenoid valve 130 for controlling the on-off of the corresponding pipeline. The solenoid valve 130 can be independently provided on each connecting pipe 40, or a single solenoid valve can be provided and the on-off control of different connecting pipes 40 can be achieved by controlling the opening and closing of multiple passages. The tilt sensor 120 is in communication connection with the solenoid valve 130. The tilt sensor 120 is preset with a tilt amplitude. When the center column 10 tilts within the preset amplitude, it is considered to be in normal operating condition. When the tilt sensor 120 detects that the center column 10 exceeds the preset tilt amplitude, the feedback solenoid valve 130 adjusts the connecting pipe 40 corresponding to the side column 20 with a lower horizontal height to open, and at the same time, the feedback solenoid valve 130 adjusts the other connecting pipes 40 to close, further feedback regulating cylinder increases its volume, and the sealing structure of the regulating cylinder will form a negative pressure state inside, and then through the communicating pipe 40 in the open state, the side column 20 with a lower horizontal height in the tilted state is adjusted. The liquid in the side column 20 will be drawn into the regulating cylinder, and the buoyancy of the side column 20 on the side with a lower horizontal height will be increased, thereby raising its horizontal height and resisting the tilt amplitude, thereby preventing the floating offshore wind power platform from capsizing due to excessive wind force on the sea surface within a certain range; and when the strong wind force on the sea surface weakens or disappears, the tilt sensor 120 will feedback that the volume of the regulating cylinder has decreased, and the liquid inside will be discharged into the original side column 20 again, so that the side column 20 can be restored to its original weight, and have a similar buoyancy effect as other side columns 20, and maintain the balanced floating state of the floating offshore wind power platform.

[0050] Through the detection and feedback of the tilt sensor 120, the buoyancy of each side column 20 of the floating offshore wind power platform can be dynamically adjusted according to the operating conditions, further improving the floating stability of the floating offshore wind power platform and reducing the risk of affecting its power generation efficiency due to excessive tilt.

[0051] On the basis of the above embodiment, the adjustment cylinder includes a piston cylinder 140 and a piston rod 150. One end of the piston rod 150 extends into the piston cylinder 140 and is sealed with the inner wall of the piston cylinder 140. The cavity structure of the side column 20 is connected to the piston cylinder 140. Specifically, the piston structure at the bottom of the piston rod 150 can be sealed with the inner wall of the piston cylinder 140 through a flexible interference fit. At the same time, the piston rod 150 is connected to a drive assembly. The drive assembly can provide a power source through a motor, a cylinder, or a hydraulic cylinder. The tilt sensor 120 is in communication with the drive assembly. When it detects that the center column 10 exceeds a preset tilt range, the feedback drive assembly drives the piston rod 150 to move along the axial direction of the piston cylinder 140 to increase the volume of the piston cylinder 140 and transfer the corresponding side column 20 liquid to the piston cylinder 140. Correspondingly, when liquid needs to be transferred from the piston cylinder 140 to the corresponding side column 20, the driving assembly can drive the piston rod 150 to descend along the axial direction of the piston cylinder 140, thereby reducing the volume of the piston cylinder 140 and achieving the liquid transfer requirement.

[0052] Furthermore, the piston rod 150 can be directly driven by a power source such as a motor. Figure 3 As shown, in some embodiments of the present disclosure, in order to improve the stability and uniformity of the operation process of the piston rod 150, the end of the piston rod 150 away from the piston cylinder 140 is set to a T-shaped structure, and in a preferred embodiment of the present disclosure, the piston rod 150 and the piston cylinder 140 are coaxially arranged to reduce the risk of deflection of the piston rod 150 during the operation. Correspondingly, the T-shaped structure at one end of the piston rod 150 is set through a diameter of the piston cylinder 140. On this basis, a limiting groove 1510 is opened on the T-shaped structure of the piston rod 150 in an area passing through the diameter of the piston cylinder 140, and the limiting groove 1510 is perpendicular to the axis of the piston cylinder 140. The driving assembly includes a driving motor 160, a turntable 170 and a protruding rod 180. Specifically, the rotating shaft of the driving motor 160 is connected to the center position of the turntable 170 to drive the turntable 170 to rotate clockwise and counterclockwise, and the protruding rod 180 is fixed on the turntable 170. At the same time, the protruding rod 180 is arranged through the limiting groove 1510. At the same time, a fixing plate 1520 is fixedly arranged inside the central column 10, and the piston rod 150 is arranged through the fixing plate 1520 to limit the piston rod 150 to the axial position of the piston cylinder 140 through the fixing plate 1520. On this basis, when the driving motor 160 drives the turntable 170 to rotate, the sliding cooperation structure between the protruding rod 180 and the limiting groove 1510 can apply an axial component force to the piston rod 150 through the limiting groove 1510, thereby driving the piston rod 150 to perform lifting and lowering movements along the axial direction of the piston cylinder 140.

[0053] In some embodiments of the present disclosure, a back plate 50 providing a bearing base is further provided inside the center column 10, and a battery 60 and a circuit control board 70 are provided above the front wall of the back plate 50. The solenoid valve 130 and the tilt sensor 120 are both signal-connected to the circuit control board 70 to realize signal transmission through the circuit control board 70.

[0054] Compared with the structure that directly drives the piston rod 150 to operate, the driving assembly provided in the embodiment of the present disclosure drives the piston rod 150 through the lateral force component through the structural design of the turntable 170 and the protruding rod 180, so that the driving force acting on the piston rod 150 is slowly released, thereby avoiding sudden stress changes that cause the volume change rate of the piston cylinder 140 to be too fast, thereby affecting the stability of its water absorption and drainage process.

[0055] As for the connecting pipe 40 connecting the adjusting cylinder and the side column 20, it specifically includes a first joint pipe 410, a second joint pipe 420 and an assembly pipe 430, wherein the first joint pipe 410 is arranged on the adjusting cylinder and is connected to the interior of the adjusting cylinder, and the second joint pipe 420 is arranged on the side column 20 and is connected to the internal cavity of the side column 20, so that the adjusting cylinder and the side column 20 remain independent, thereby meeting the independent transportation requirements of the center column 10 and the side column 20. The assembly tube 430 connects the first joint tube 410 and the second joint tube 420. At the same time, the assembly tube 430 passes through the side wall of the center column 10 and is bonded and sealed to the side wall of the center column 10. The assembly tube 430 can be connected to the first joint tube 410 and the second joint tube 420 after the center column 10 and the side column 20 are assembled. The sealing cooperation with the side wall of the center column 10 can reduce the risk of leakage in the area where the center column 10 is immersed in the sea surface, which may affect the operating stability of the electrical components inside the center column 10. At the same time, it is preferred that the first joint tube 410 and the second joint tube 420 are rigid joints to keep the connection position fixed, and the assembly tube 430 is set to a flexible structure to facilitate the connection and assembly of the two ends, and meet the assembly requirements when there is a certain distance error between the first joint tube 410 and the second joint tube 420.

[0056] Furthermore, in the floating offshore wind power platform provided in the embodiment of the present disclosure, grouting holes 3310 and exhaust holes 3320 are arranged at intervals on the top of the ballast cylinder 330. After the ballast cylinder 330 and the center column 10 are assembled, the grouting holes 3310 on the ballast cylinder 330 are used to pour concrete. The concrete has a low cost and can meet good counterweight requirements. At the same time, the gas inside the ballast cylinder 330 is discharged through the exhaust holes 3320, thereby increasing the counterweight of the ballast cylinder 330, so as to utilize the ballast cylinder 330 to lower the center of gravity when the floating offshore wind power platform is launched, thereby improving the stability of the overall structure.

[0057] In order to further improve the floating stability of the floating offshore wind power platform on the sea surface, in some embodiments of the present disclosure, the side columns 20 are symmetrically provided with roll stabilizers 230. Specifically, the roll stabilizers 230 are arranged perpendicular to the axis of the center column 10, that is, the roll stabilizers 230 are in contact with the sea surface. At the same time, the roll stabilizers 230 are a cavity structure and are connected with the inner cavity of the side columns 20. The roll stabilizers 230 constitute the extended surface of the side columns 20. While the side columns 20 provide floating protection for the center column 10, if the surge force drives the side columns 20 to float, the side columns 20 will be subject to the resistance generated by the contact between the roll stabilizers 230 and the sea water when floating, thereby reducing the amplitude of the shaking, so as to provide roll reduction protection for the wind turbine.

[0058] Furthermore, in the floating offshore wind power platform provided in the embodiment of the present disclosure, a locking ear 190 is fixedly provided on the outer wall of the central column 10, and the cable fixed in advance on the seabed is bolted to the locking ear 190 to achieve position limitation and rotation angle limitation of the floating offshore wind power platform. It should be noted that the number of locking ears 190 and connecting components 110 is preferably equal, and the locking ears 190 and connecting components 110 are spaced apart and arranged one-to-one in the axial direction of the middle column 10. The locking ears 190 are the connection points between the floating offshore wind power platform and the sea base, while the connecting components 110 are the connection points between the middle column 10 and the side columns 20. The locking ears 190 and the connecting components 110 correspond to each other in the axial direction of the middle column 10, so that the anti-swing effects of the side columns 20 and the locking ears 190 on the outer wall of the middle column 10 in the axial direction are located in the same vertical area, and the forces at different heights in the axial direction of the middle column 10 can assist and balance each other, thereby avoiding the risk of the middle column 10 swinging on its own due to the deviation of the action points of different anti-swing sources.

[0059] Furthermore, in the floating offshore wind power platform provided by the embodiment of the present disclosure, the locking assembly 210 and the connecting assembly 110 can be fixed by a snap connection, a flange connection or a plug-in connection. In some embodiments, the locking assembly 210 includes a female sleeve 2110, and the connecting assembly 110 includes a male plug 1110 and is plugged into the female sleeve 2110. During the assembly process of the middle column 10 and the side column 20, it is only necessary to align the male plug 1110 and the female sleeve 2110, and slide the male plug 1110 into the female sleeve 2110 to achieve plug-in cooperation with the female sleeve 2110, so as to achieve the assembly of the side column 20 on the middle column 10, without the need for additional tools, and further reduce the difficulty of on-site assembly of the floating offshore wind power platform.

[0060] Specifically, if Figure 4 and Figure 5As shown, the male plug 1110 is provided with a wedge block 1120 to have an oblique guiding structure, thereby improving the smoothness of the plugging process. Correspondingly, the female sleeve 2110 is provided with a slot 2120 for the wedge block 1120 to slide into and plug in. At the same time, a card slot 1130 is opened on the wedge block 1120, and a locking block 2130 that can be locked with the card slot 1130 is provided in the slot 2120. The locking block 2130 is floatingly arranged in a direction parallel to the axis of the center column 10. During the transfer process of the side column 20 and the center column 10, the female sleeve 2110 is spliced ​​to the male plug 1110, and the wedge block 1120 will be plugged into the slot 2120 inside the female sleeve 2110. The inclined surface of the wedge block 1120 first abuts the locking block 2130, which then applies a force parallel to the axis of the center column 10. The locking block 2130 floats upward, allowing the wedge block 1120 to pass through, allowing the wedge block 1120 to move completely into the slot 2120. The locking block 2130 then aligns with the locking slot 1130 at the top of the wedge block 1120 in its floating direction. The abutting force on the locking block 2130 disappears, causing it to float downward in the floating direction and engage into the locking slot 1130, thereby firmly locking the wedge block 1120 in the slot 2120 and completing the assembly of the center column 10 and the side column 20. This connection structure requires no additional tools and only requires a sliding fit to achieve a stable connection. The sliding and engaging locking slot 1130 and the locking block 2130 form a retaining structure, reducing the risk of the side column 20 slipping off and simplifying the assembly of the floating offshore wind power platform.

[0061] On the basis of the above embodiment, the locking block 2130 is floatingly set by the spring 2140. Specifically, one end of the locking block 2130 abuts against the spring 2140, and the spring 2140 is clamped by the locking block 2130 and the abutment plate 2150. The locking block 2130 compresses the spring 2140 during the upward floating process in a direction parallel to the axis of the center column 10, so that when the locking block 2130 is aligned with the slot 1130 opened at the top of the wedge block 1120 in its floating direction, it is smoothly clamped in the slot 1130 through the elastic action of the spring 2140.

[0062] Furthermore, a threaded rod 2160 is threadedly connected to the abutment plate 2150. Specifically, the threaded rod 2160 is rotatably arranged in the female sleeve 2110 through a bearing, and one end of the threaded rod 2160 is fixedly connected to the handwheel 2170. When it is necessary to disassemble and separate the male plug 1110 and the female sleeve 2110, the handwheel 2170 is operated to drive the threaded rod 2160 to rotate, and then the abutment plate 2150 is driven upward by the action of the threaded connection. During the upward movement of the abutment plate 2150, the locking block 2130 will be pulled upward by the spring 2140, and the locking block 2130 will be moved out of the slot 1130 to release the limit fixation of the wedge block 1120. At this time, the female sleeve 2110 and the male plug 1110 can be freely plugged in and out, and the female sleeve 2110 and the male plug 1110 can be adjusted or separated, and the side column 20 can be removed for inspection.

[0063] In addition, in some embodiments of the present disclosure, a transparent observation window 2180 is further provided on the female sleeve 2110, which can be made of glass or acrylic material, and the observation range of the observation window 2180 includes the axial height range of the threaded rod 2160. During the process of adjusting the height of the abutment plate 2150 by using the handwheel 2170 and the threaded rod 2160, the operator can observe the moving distance of the abutment plate 2150 from the side through the observation window 2180, thereby avoiding the problem that the abutment plate 2150 cannot move enough, resulting in the locking block 2130 being unable to unlock the slot 1130, or the abutment plate 2150 moving too far, causing damage to the female sleeve 2110.

[0064] Furthermore, the locking assembly 210 also includes a sealing cover 2190 that covers the abutment plate 2150, the threaded rod 2160 and the handwheel 2170 to seal and protect the abutment plate 2150, the threaded rod 2160 and the handwheel 2170, thereby reducing the impact of external impurities on the smooth operation of the abutment plate 2150, the threaded rod 2160 and the handwheel 2170. At the same time, the sealing cover 2190 is fixedly connected to the female sleeve 2110 and a sealing ring is provided to maintain a good internal sealing state.

[0065] In addition, in some embodiments of the present disclosure, the contact surfaces of the locking block 2130 and the wedge block 1120 are both inclined structures and have the same inclination for adaptation. After the wedge block 1120 and the locking block 2130 are in contact, the uniformity and stability of the upward movement process of the locking block 2130 are improved, thereby reducing the risk of jamming.

[0066] Furthermore, embodiments of the present disclosure also provide a wind turbine, comprising a wind turbine and a floating offshore wind power platform according to any of the aforementioned embodiments, wherein the wind turbine is disposed on a center column 10 of the floating offshore wind power platform. It should be noted that, since the floating offshore wind power platform has the technical effects provided by any of the aforementioned embodiments, the wind turbine also has the technical effects provided by any of the aforementioned embodiments, and will not be further elaborated herein.

[0067] In the specification and claims of this application, as well as in the accompanying drawings, the terms "first," "second," "left," and "right," etc., are used to distinguish between different objects, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements and may include steps or elements that are not listed.

[0068] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A floating offshore wind power platform, characterized in that: include: A center column (10), wherein at least two connection assemblies (110) are provided in a circumferential direction of the center column (10); A side column (20), wherein a locking assembly (210) is provided at a first end of the side column (20), the locking assembly (210) is assembled and connected to the connecting assembly (110), the side column (20) is a hollow structure, and a sealing cover (220) is provided at a second end; An adjusting rod (30) is assembled and arranged at the bottom of the center column (10) in its axial direction. The adjusting rod (30) is a hollow structure and is slidably connected to a telescopic rod (310). The telescopic rod (310) is driven by a power unit (320) to move along the axial direction of the adjusting rod (30). A ballast cylinder (330) is fixedly arranged at one end of the telescopic rod (310) away from the adjusting rod (30).

2. The floating offshore wind power platform according to claim 1, characterized in that: A tilt sensor (120) and a volume-adjustable adjustment cylinder are provided in the center column (10); the adjustment cylinder is sealed and independently communicates with the inner cavity of each side column (20) through a connecting pipe (40); and a solenoid valve (130) for controlling the opening and closing of the corresponding pipeline is provided on the connecting pipe (40); The tilt sensor (120) is communicatively connected to the solenoid valve (130). The tilt sensor (120) is used to detect the tilt amplitude of the center column (10). When the center column (10) exceeds a preset tilt amplitude, the solenoid valve (130) is fed back to adjust the connecting pipe (40) corresponding to the side column (20) with a lower horizontal height to open, and the other connecting pipes (40) are closed. At the same time, the regulating cylinder is fed back to increase its volume to absorb the liquid in the side column (20) connected thereto.

3. The floating offshore wind power platform according to claim 2, characterized in that: The regulating cylinder comprises a piston cylinder (140) and a piston rod (150) having one end extending into the piston cylinder (140) and sealed with the inner wall of the piston cylinder (140); the piston rod (150) is transmission-connected to a drive assembly for axial movement along the piston cylinder (140), and the drive assembly is communicatively connected to the tilt sensor (120).

4. The floating offshore wind power platform according to claim 3, characterized in that: The end of the piston rod (150) away from the piston cylinder (140) is a T-shaped structure and is provided with a limiting groove (1510) perpendicular to the axis of the piston cylinder (140); the driving assembly includes a driving motor (160), a turntable (170) and a protruding rod (180), the driving motor (160) drives the turntable (170) to rotate, the protruding rod (180) is fixed on the turntable (170) and passes through the limiting groove (1510), the piston rod (150) passes through the fixing plate (1520) to be limited to the axial position of the piston cylinder (140), and is driven by the protruding rod (180) to move along the axial direction of the piston cylinder (140).

5. The floating offshore wind power platform according to claim 2, characterized in that: The connecting pipe (40) comprises a first connecting pipe (410) provided on the adjusting cylinder, a second connecting pipe (420) provided on the side column (20), and an assembly pipe (430) connecting the first connecting pipe (410) and the second connecting pipe (420), wherein the assembly pipe (430) passes through the side wall of the center column (10) and is bonded and sealed to the side wall of the center column (10).

6. The floating offshore wind power platform according to claim 1, characterized in that: Grouting holes (3310) and exhaust holes (3320) are arranged at intervals on the top of the ballast cylinder (330).

7. The floating offshore wind power platform according to claim 1, characterized in that: Stabilizer fins (230) are symmetrically arranged on the side columns (20), the stabilizer fins (230) are arranged perpendicular to the axis of the center column (10), and the stabilizer fins (230) are hollow structures and communicate with the inner cavity of the side columns (20).

8. The floating offshore wind power platform according to claim 1, characterized in that: The outer wall of the center column (10) is provided with locking ears (190), the number of the locking ears (190) is equal to the number of the connecting components (110), and the locking ears (190) are spaced apart and arranged in a one-to-one correspondence in the axial direction of the center column (10).

9. The floating offshore wind power platform according to claim 1, characterized in that: The locking assembly (210) includes a female sleeve (2110), and the connecting assembly (110) includes a male plug (1110) and is plug-fitted to the female sleeve (2110).

10. The floating offshore wind power platform according to claim 9, characterized in that: The male plug (1110) is provided with a wedge block (1120), and the female sleeve (2110) is provided with a slot (2120) for the wedge block (1120) to be inserted; the wedge block (1120) is provided with a slot (1130), and a locking block (2130) capable of being locked with the slot (1130) is provided in the slot (2120), and the locking block (2130) is floatingly arranged in a direction parallel to the axis of the center column (10).

11. The floating offshore wind power platform according to claim 10, characterized in that: One end of the locking block (2130) abuts against a spring (2140), and the spring (2140) is clamped by the locking block (2130) and the abutment plate (2150); a threaded rod (2160) is threadedly connected to the abutment plate (2150), and the threaded rod (2160) is rotatably arranged in the female sleeve (2110) through a bearing, and one end of the threaded rod (2160) is fixedly connected to a handwheel (2170).

12. The floating offshore wind power platform according to claim 11, characterized in that: The female sleeve (2110) is provided with a transparent observation window (2180), and the observation range of the observation window (2180) includes the axial height range of the threaded rod (2160).

13. The floating offshore wind power platform according to claim 11, characterized in that: The locking assembly (210) further comprises a sealing cover (2190) covering the abutment plate (2150), the threaded rod (2160) and the hand wheel (2170); the sealing cover (2190) is fixedly connected to the female sleeve (2110) and is provided with a sealing ring.

14. The floating offshore wind power platform according to claim 11, characterized in that: The contact surfaces of the locking block (2130) and the wedge block (1120) have the same inclination.

15. A wind turbine, characterized in that: It comprises a wind turbine group and a floating offshore wind power platform as claimed in any one of claims 1 to 14.

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