Anti-overturning structure and method for offshore wind power floating platform

Abstract

The invention relates to the technical field of offshore wind power generation, in particular to an offshore wind power floating platform anti-overturning structure which comprises a platform body, a ballast tank, an adjusting valve, a conveying pump, a ballast collecting unit, a damping unit, an intelligent detection unit and a central control unit. The damping unit is movably arranged on the outer side of the platform body and connected with the central control unit, the intelligent detection unit is fixedly arranged on the outer side of the platform body and connected with the central control unit, the ballast tank is fixedly arranged on the inner side of the platform body, and the input end of the conveying pump is connected with the outer side of the ballast tank through a pipeline and electrically connected with the central control unit. The adjusting valve is connected with the ballast tank through a pipeline and electrically connected with the central control unit, the ballast collecting unit is fixedly arranged in the ballast tank and connected with the central control unit, and therefore the anti-overturning effect of the platform is achieved.

Description

Technical Field

[0001] This invention relates to the field of offshore wind power generation technology, and in particular to an anti-overturning structure and method for offshore wind power floating platforms. Background Technology

[0002] Offshore wind power refers to a renewable energy generation method that utilizes offshore wind resources to convert wind energy into electrical energy through wind turbine generators. As an important component of clean energy, offshore wind power plays a key role in addressing climate change, optimizing energy structure, and promoting energy transition.

[0003] Conventional floating platforms have shortcomings in practical applications. In extreme weather conditions such as strong winds and large waves, the platform is prone to tilting or overturning due to uneven stress, and it is difficult to adjust the attitude in real time according to the overturning state of the platform, which affects the stability and anti-overturning ability of the platform, thus affecting the anti-overturning effect of the platform. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-overturning structure for offshore wind power floating platforms, which solves the technical problem that in the prior art, floating platforms are prone to tilting or overturning due to uneven stress under extreme weather conditions such as strong winds and large waves, and it is difficult to adjust the attitude in real time according to the overturning state of the platform, thus affecting the stability and anti-overturning ability of the platform, and thus affecting the anti-overturning effect of the platform.

[0005] To achieve the above objectives, the present invention employs an anti-overturning structure for an offshore wind power floating platform, comprising a platform body, a ballast tank, a regulating valve, a delivery pump, a ballast acquisition unit, a damping unit, an intelligent detection unit, and a central control unit. The central control unit is fixedly disposed on one side of the platform body. The damping unit is movably disposed on the outside of the platform body and connected to the central control unit. The intelligent detection unit is fixedly disposed on the outside of the platform body and connected to the central control unit. The ballast tank is fixedly disposed on the inside of the platform body. The input end of the delivery pump is connected to the outside of the ballast tank via a pipeline and electrically connected to the central control unit. The regulating valve is connected to the ballast tank via a pipeline and electrically connected to the central control unit. The ballast acquisition unit is fixedly disposed inside the ballast tank and connected to the central control unit.

[0006] The damping unit includes a damping plate, a hydraulic telescopic rod, and a fixing component. The damping plate is rotatably connected to the platform body and is located outside the platform body. The hydraulic telescopic rod is rotatably connected to the platform body, and its output end is connected to the damping plate. The fixing component is connected to the platform body, the damping plate, and the central control unit.

[0007] The fixing component includes a fixing block and a driving component. The fixing block is slidably connected to the platform body and engages with the damping plate. The driving component is connected to the fixing block, the platform body, and the central control unit.

[0008] The driving component includes a screw and a drive motor. The screw is threadedly connected to the fixing block and is located on the side of the fixing block away from the platform body. The drive motor is fixedly connected to the platform body and electrically connected to the central control unit. The output shaft of the drive motor is connected to the screw.

[0009] The damping unit further includes a low-friction composite coating, which is sprayed onto the surface of the damping plate.

[0010] The intelligent detection unit includes a tilt sensor, an acceleration sensor, and a wave buoy. The tilt sensor is fixedly installed on the outside of the platform body and electrically connected to the central control unit; the acceleration sensor is fixedly connected to the platform body and electrically connected to the central control unit; and the wave buoy is electrically connected to the central control unit.

[0011] The intelligent detection unit also includes an anemometer, which is fixedly installed on the top of the platform body and electrically connected to the central control unit.

[0012] The ballast acquisition unit includes a pressure sensor and a liquid level sensor. The pressure sensor is fixedly installed inside the ballast tank and electrically connected to the central control unit. The liquid level sensor is fixedly connected to the ballast tank and located on the side of the ballast tank closer to the pressure sensor, and is also electrically connected to the central control unit.

[0013] One type of anti-overturning structure for offshore wind power floating platforms also includes an emergency manual valve. The input end of the emergency manual valve is connected to the ballast tank via a pipe and is located at the bottom of the ballast tank.

[0014] An anti-overturning method for offshore wind power floating platforms is applied to the aforementioned anti-overturning structure of an offshore wind power floating platform.

[0015] Step S1: Data Acquisition: The intelligent detection unit acquires the platform's motion status and environmental parameters in real time;

[0016] Step S2: Risk assessment: The central control unit predicts the overturning trend in the next 5 seconds based on the digital twin model. If the predicted overturning angle of the main body of the platform will exceed 10°, the anti-overturning plan will be activated.

[0017] Step S3: Overturning Response: Activate the adaptive center of gravity adjustment unit to adjust the ballast tank level; activate the damping unit to adjust the tilt angle of the damping plate, thereby adjusting the overturning angle of the platform body.

[0018] This invention discloses an anti-capsizing structure for an offshore wind power floating platform. The tilt sensor detects the tilt angle between the horizontal plane and the platform body; the accelerometer detects the movement speed of the water; the wave buoy detects parameters such as wave period and direction; the anemometer detects the wind speed around the platform and transmits the data to the central processing unit; the pressure sensor regulates the pressure inside the ballast tank; and the level sensor detects the water level inside the ballast tank and transmits the data to the central processing unit. The central control unit analyzes and processes the collected data. Subsequently, the central processing unit sends signals to the delivery pump, the regulating valve, and the damping unit. The delivery pump on one side of the platform body activates to deliver water into the ballast tank, increasing the weight on one side of the platform body. Simultaneously, the regulating valve on the other side of the platform body activates to adjust the platform's pressure. Water is drained from the ballast tank on the other side of the main body to reduce weight. Then, the hydraulic telescopic rod drives the damping plate to rotate on the platform body, causing the damping plate to unfold. The drive motor drives the screw to rotate, and the screw engages with the fixed block, driving the fixed block to abut against the damping plate and fixing the unfolding angle of the damping plate. The unfolded damping plate contacts the water surface, and the water flow impacting the plate surface generates an asymmetrical pressure distribution. The horizontal component of the force is used to counteract the platform's lateral movement. This achieves vibration reduction and dynamic adjustment of the swaying, reducing vibration between the platform body and the water surface. The platform's attitude is adjusted in real time according to its overturning state, thereby improving the platform's stability and anti-overturning capability, and ultimately enhancing its anti-overturning effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of an anti-overturning structure for an offshore wind power floating platform according to the present invention.

[0021] Figure 2This is a schematic diagram of the platform body and central control unit of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the damping plate and low-friction composite coating of the present invention.

[0023] Figure 4 This is a schematic diagram of the overall structure of the wave buoy of the present invention.

[0024] In the diagram: 101-Platform main body, 102-Ballast tank, 103-Regulating valve, 104-Transfer pump, 105-Central control unit, 106-Damping plate, 107-Hydraulic telescopic rod, 108-Low friction composite coating, 109-Fixing block, 110-Screw, 111-Drive motor, 112-Tilt sensor, 113-Acceleration sensor, 114-Wave buoy, 115-Anemometer, 116-Pressure sensor, 117-Level sensor, 118-Emergency manual valve. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] Please see Figures 1-4 ,in Figure 1 This is a schematic diagram of the overall structure of an anti-overturning structure for an offshore wind power floating platform according to the present invention. Figure 2 This is a structural diagram of the platform body and central control unit of the present invention. Figure 3 This is a schematic diagram of the damping plate and low-friction composite coating of the present invention. Figure 4 This is a schematic diagram of the overall structure of the wave buoy of the present invention.

[0027] This invention provides an anti-overturning structure for offshore wind power floating platforms, including a platform body 101, a ballast tank 102, a regulating valve 103, a delivery pump 104, a ballast acquisition unit, a damping unit, an intelligent detection unit, a central control unit 105, and an emergency manual valve 118. The damping unit includes a damping plate 106, a hydraulic telescopic rod 107, a fixing component, and a low-friction composite coating 108. The fixing component includes a fixing block 109 and a driving component. The driving component includes a screw 110 and a drive motor 111. The intelligent detection unit includes a tilt sensor 112, an acceleration sensor 113, a wave buoy 114, and an anemometer 115. The ballast acquisition unit includes a pressure sensor 116 and a liquid level sensor 117. The aforementioned solution solves the problem that floating platforms are prone to tilting or overturning due to uneven stress under extreme weather conditions such as strong winds and large waves, and it is difficult to adjust the attitude in real time according to the overturning state of the platform, thus affecting the stability and anti-overturning ability of the platform, and thus affecting the anti-overturning effect of the platform.

[0028] In this specific embodiment, the central control unit 105 is fixedly disposed on one side of the platform body 101, the damping unit is movably disposed on the outside of the platform body 101 and connected to the central control unit 105, the intelligent detection unit is fixedly disposed on the outside of the platform body 101 and connected to the central control unit 105, the ballast tank 102 is fixedly disposed on the inside of the platform body 101, the input end of the delivery pump 104 is connected to the outside of the ballast tank 102 through a pipe and is electrically connected to the central control unit 105, and the regulating valve 103 is connected to the ballast tank 102 through a pipe. The ballast tank 102 is connected and electrically connected to the central control unit 105. The ballast acquisition unit is fixedly installed inside the ballast tank and connected to the central control unit 105. The top of the platform body 101 has a cavity, and the lower outer part of the platform body 101 has multiple movable cavities. There are multiple intelligent detection units and multiple damping units. The intelligent detection units and the damping units are located on the lower outer part of the platform body 101. The bottom of the ballast tank 102 has a through hole. There are multiple ballast tanks 102, and the ballast tanks 102 are located on the platform body 101. Inside the top of the ballast tank 102, there are multiple delivery pumps 104 and multiple regulating valves 103. The regulating valves 103 are located at the bottom of the ballast tank 102. The central control unit 105 is located in the cavity of the platform body 101. There are multiple compression acquisition units that collect data from the inside of the ballast tank 102. The intelligent detection unit collects data from the surrounding environment. The ballast acquisition units collect data from the inside of the ballast tank 102. The central control unit 105 analyzes and processes the collected data. Subsequently, the central processor processes the delivery pumps 104 and the regulating valves 103. 3. The damping unit transmits a signal, and the pump 104 on one side of the platform body 101 is activated to deliver water into the ballast tank 102, increasing the weight of one side of the platform body 101. At the same time, the regulating valve 103 on the other side of the platform body 101 is activated to discharge the water in the ballast tank 102 on the other side of the platform body 101, reducing the weight. Subsequently, the damping unit reduces vibration and dynamically adjusts the sway of the platform body 101 relative to the water surface, adjusting the attitude in real time according to the overturning state of the platform, thereby improving the stability and anti-overturning ability of the platform, and thus improving the anti-overturning effect of the platform.

[0029] The damping plate 106 is rotatably connected to the platform body 101 and located on the outside of the platform body 101; the hydraulic telescopic rod 107 is rotatably connected to the platform body 101, and the output end of the hydraulic telescopic rod 107 is connected to the damping plate 106; the fixing member is connected to the platform body 101, the damping plate 106, and the central control unit 105; the damping plate 106 is mounted on the lower outer side of the platform body 101 via a shaft; the fixing member is disposed on the moving cavity of the platform body 101; the hydraulic... The hydraulic telescopic rod 107 is installed on the lower outer side of the platform body 101 via a shaft. The output end of the hydraulic telescopic rod 107 is connected to the damping plate 106 via a shaft. The damping plate 106 is driven to rotate on the platform body 101 by the hydraulic telescopic rod 107, causing the damping plate 106 to unfold. The fixing component fixes the unfolding angle of the damping plate 106. The unfolded damping plate 106 contacts the water surface. The water flow impacts the plate surface and generates an asymmetrical pressure distribution. The horizontal component of the force is used to counteract the lateral displacement of the platform, thereby achieving vibration reduction and dynamic adjustment of sway.

[0030] Secondly, the fixing block 109 is slidably connected to the platform body 101 and engages with the damping plate 106; the driving component is connected to the fixing block 109, the platform body 101, and the central control unit 105. One end of the fixing block 109 is designed with teeth, and the other end of the fixing block 109 is designed with an internal threaded hole. The driving component drives the outer side of the fixing block 109 to move on the moving cavity of the platform body 101. The driving component drives the fixing block 109 to move horizontally. The fixing block 109 abuts against the damping plate 106, thereby fixing the unfolding angle of the damping plate 106.

[0031] Meanwhile, the screw 110 is threadedly connected to the fixing block 109 and is located on the side of the fixing block 109 away from the platform body 101; the drive motor 111 is fixedly connected to the platform body 101 and electrically connected to the central control unit 105. The output shaft of the drive motor 111 is connected to the screw 110, and the external thread of the screw 110 is connected to the internal thread hole of the fixing block 109. The drive motor 111 drives the screw 110 to rotate, and the screw 110 is threadedly engaged with the fixing block 109, driving the fixing block 109 to move, thereby driving the fixing block 109 to move on the platform body 101.

[0032] Then, the low-friction composite coating 108 is sprayed onto the surface of the damping plate 106. The low-friction composite coating 108 is composed of a matrix material, a solid lubricating phase and functional additives. The low-friction composite coating 108 reduces the frictional resistance between the water and the plate surface, thereby improving the vibration reduction effect.

[0033] In addition, the tilt sensor 112 is fixedly installed on the outside of the platform body 101 and electrically connected to the central control unit 105; the acceleration sensor 113 is fixedly connected to the platform body 101 and electrically connected to the central control unit 105; the wave buoy 114 is electrically connected to the central control unit 105. The tilt sensor 112 is an electronic device used to measure the tilt angle of an object relative to a horizontal or vertical plane, and the acceleration sensor 113 is an electronic device capable of measuring the acceleration of an object. Its core function is to detect the inertial force generated by the motion of the object and convert the acceleration into a quantifiable electrical signal output. The tilt sensor 112 detects the tilt angle between the horizontal plane and the platform body 101, the acceleration sensor 113 detects the movement speed of the water body, and the wave buoy 114 detects parameters such as the period and direction of the water waves, thereby detecting the environmental parameters around the platform.

[0034] In addition, the anemometer 115 is fixedly installed on the top of the platform body 101 and electrically connected to the central control unit 105. The anemometer 115 is installed on the top of the platform body 101 by bolts. The anemometer 115 detects the wind speed around the platform and transmits the data to the central processing unit, thereby improving the detection effect of the environmental conditions around the platform.

[0035] In addition, the pressure sensor 116 is fixedly installed inside the ballast tank 102 and electrically connected to the central control unit 105; the liquid level sensor 117 is fixedly connected to the ballast tank 102 and located on the side of the ballast tank 102 near the pressure sensor 116, and is electrically connected to the central control unit 105. The pressure sensor 116 and the liquid level sensor 117 are located inside the ballast tank 102. The pressure sensor 116 regulates the pressure inside the ballast tank 102, and the liquid level sensor 117 detects the water level inside the ballast tank 102, thereby detecting the interior of the ballast tank 102.

[0036] Using an anti-overturning structure for an offshore wind power floating platform according to this embodiment, the tilt sensor 112 detects the tilt angle between the horizontal plane and the platform body 101; the acceleration sensor 113 detects the movement speed of the water; the wave buoy 114 detects parameters such as the period and direction of the waves; the anemometer 115 detects the wind speed around the platform and transmits the data to the central processing unit; the pressure sensor 116 regulates the pressure inside the ballast tank 102; the level sensor 117 detects the water level inside the ballast tank 102 and transmits the data to the central processing unit; the central control unit 105 analyzes and processes the collected data; subsequently, the central processing unit sends signals to the delivery pump 104, the regulating valve 103, and the damping unit. The delivery pump 104 on one side of the platform body 101 activates to deliver water into the ballast tank 102, increasing the weight on one side of the platform body 101; simultaneously, the regulating valve 103 on the other side of the platform body 101 activates. The water in the ballast tank 102 on the other side of the platform body 101 is drained to reduce weight. Then, the hydraulic telescopic rod 107 drives the damping plate 106 to rotate on the platform body 101, causing the damping plate 106 to unfold. The drive motor 111 drives the screw 110 to rotate. The screw 110 is threadedly engaged with the fixing block 109, driving the fixing block 109 to abut against the damping plate 106, fixing the unfolding angle of the damping plate 106. When the damping plate 106 contacts the water surface, the water flow impacts the plate surface, generating an asymmetric pressure distribution. The horizontal component of the force is used to counteract the lateral displacement of the platform. The unfolded damping plate 106 contacts the water surface, and the water flow impacts the plate surface, generating an asymmetric pressure distribution. The horizontal component of the force is used to counteract the lateral displacement of the platform, achieving vibration reduction and dynamic adjustment of sway. This reduces vibration and dynamically adjusts the sway of the platform body 101 relative to the water surface, and adjusts the posture in real time according to the overturning state of the platform, thereby improving the stability and anti-overturning ability of the platform, and thus improving the anti-overturning effect of the platform.

[0037] In addition, an anti-overturning structure for an offshore wind power floating platform also includes an emergency manual valve 118. The input end of the emergency manual valve 118 is connected to the ballast tank 102 via a pipe and is located at the bottom of the ballast tank 102. There are multiple emergency manual valves 118. By manually adjusting the emergency manual valve 118, the water level in the ballast tank 102 can be manually adjusted, thereby enabling the maintenance of basic adjustment functions in the event of a power outage.

[0038] This invention also provides a method for preventing the capsizing of offshore wind power floating platforms, the method being:

[0039] Step S1: Data Acquisition: The intelligent detection unit acquires the platform's motion status and environmental parameters in real time;

[0040] Step S2: Risk assessment: The central control unit 105 predicts the overturning trend in the next 5 seconds based on the digital twin model. If the predicted overturning angle of the platform body 101 will exceed 10°, the anti-overturning plan will be activated.

[0041] Step S3: Overturning response: Activate the adaptive center of gravity adjustment unit to adjust the liquid level of the ballast tank 102; activate the damping unit to adjust the tilt angle of the damping plate 106 to adjust the overturning angle of the platform body 101.

[0042] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An anti-overturning structure for an offshore wind power floating platform, comprising a platform body, characterized in that, It also includes a ballast tank, a regulating valve, a transfer pump, a ballast acquisition unit, a damping unit, an intelligent detection unit, and a central control unit. The central control unit is fixedly installed on one side of the platform body. The damping unit is movably installed on the outside of the platform body and connected to the central control unit. The intelligent detection unit is fixedly installed on the outside of the platform body and connected to the central control unit. The ballast tank is fixedly installed on the inside of the platform body. The input end of the transfer pump is connected to the outside of the ballast tank through a pipe and electrically connected to the central control unit. The regulating valve is connected to the ballast tank through a pipe and electrically connected to the central control unit. The ballast acquisition unit is fixedly installed inside the ballast tank and connected to the central control unit.

2. The anti-overturning structure for offshore wind power floating platforms as described in claim 1, characterized in that, The damping unit includes a damping plate, a hydraulic telescopic rod, and a fixing component. The damping plate is rotatably connected to the platform body and is located on the outside of the platform body. The hydraulic telescopic rod is rotatably connected to the platform body, and the output end of the hydraulic telescopic rod is connected to the damping plate. The fixing component is connected to the platform body, the damping plate, and the central control unit.

3. The anti-overturning structure for offshore wind power floating platforms as described in claim 2, characterized in that, The fixing component includes a fixing block and a driving component. The fixing block is slidably connected to the platform body and engages with the damping plate. The driving component is connected to the fixing block, the platform body, and the central control unit.

4. The anti-overturning structure for offshore wind power floating platforms as described in claim 3, characterized in that, The driving component includes a screw and a drive motor. The screw is threadedly connected to the fixing block and is located on the side of the fixing block away from the platform body. The drive motor is fixedly connected to the platform body and electrically connected to the central control unit. The output shaft of the drive motor is connected to the screw.

5. The anti-overturning structure for offshore wind power floating platforms as described in claim 2, characterized in that, The damping unit also includes a low-friction composite coating, which is sprayed onto the surface of the damping plate.

6. The anti-overturning structure for offshore wind power floating platforms as described in claim 1, characterized in that, The intelligent detection unit includes a tilt sensor, an acceleration sensor, and a wave buoy. The tilt sensor is fixedly installed on the outside of the platform body and electrically connected to the central control unit; the acceleration sensor is fixedly connected to the platform body and electrically connected to the central control unit; and the wave buoy is electrically connected to the central control unit.

7. The anti-overturning structure for offshore wind power floating platforms as described in claim 3, characterized in that, The intelligent detection unit also includes an anemometer, which is fixedly installed on the top of the platform body and electrically connected to the central control unit.

8. The anti-overturning structure for offshore wind power floating platforms as described in claim 1, characterized in that, The ballast acquisition unit includes a pressure sensor and a liquid level sensor. The pressure sensor is fixedly installed inside the ballast tank and electrically connected to the central control unit. The liquid level sensor is fixedly connected to the ballast tank and located on the side of the ballast tank closer to the pressure sensor, and is also electrically connected to the central control unit.

9. The anti-overturning structure for offshore wind power floating platforms as described in claim 2, characterized in that, An anti-overturning structure for an offshore wind power floating platform also includes an emergency manual valve. The input end of the emergency manual valve is connected to the ballast tank via a pipe and is located at the bottom of the ballast tank.

10. A method for preventing capsizing of an offshore wind power floating platform, characterized in that, Applied to the anti-overturning structure of an offshore wind power floating platform as described in any one of claims 1-9; Step S1: Data Acquisition: The intelligent detection unit acquires the platform's motion status and environmental parameters in real time; Step S2: Risk assessment: The central control unit predicts the overturning trend in the next 5 seconds based on the digital twin model. If the predicted overturning angle of the main body of the platform will exceed 10°, the anti-overturning plan will be activated. Step S3: Overturning response: Activate the adaptive center of gravity adjustment unit to adjust the ballast tank liquid level; The damping unit is activated, and the tilt angle of the damping plate is adjusted to regulate the overturning angle of the platform body.

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