Offshore wind power multi-cylinder collaborative suction anchor structure

Abstract

The invention relates to the technical field of ocean engineering, and discloses an offshore wind power multi-cylinder collaborative suction anchor structure. According to the offshore wind power multi-cylinder collaborative suction anchor structure, the detection piece is installed on the bearing mechanism and used for measuring the physical state of the cylinder structure deeply buried under the mud surface, and the data collector continuously collects real-time data of the detection piece and processes and stores the real-time data; the structure condition of the bearing mechanism can be continuously monitored, a warning signal can be generated and transmitted to the warning piece after the structure condition exceeds the threshold value, warning is conducted in time, and the safety and reliability of the offshore wind power foundation are improved.

Description

Technical Field

[0001] The present invention relates to the field of marine engineering technology, and in particular to an offshore wind power multi-tube coordinated suction anchor structure. Background Art

[0002] The development of offshore wind power into deep waters is a key industry trend. Floating wind turbine systems, due to their adaptability to deepwater environments, have become a key technological direction in this field. These systems use complex mooring systems to stably anchor their floating foundations to the seabed, ensuring safe operation of the turbines in harsh sea conditions.

[0003] The current mainstream technical solution uses a single suction anchor structure as the core component of the mooring system. This solution sinks the anchor body into the seabed through rotational penetration, and uses the friction between the anchor body and the soil to provide mooring force. Its simple structure and high construction efficiency have made it the main choice for floating platform positioning. The suction anchor is usually composed of a steel cylindrical body, and the anchoring effect is enhanced by the bottom expansion cavity design. In actual application, it was found that the bearing capacity of a single anchor is insufficient, and it is difficult to disperse and apply forces in multiple directions horizontally, which makes the anchor body prone to instability. For this reason, a multi-cylinder suction anchor structure is adopted, in which a larger main cylinder and a group of smaller auxiliary cylinders evenly distributed around the main cylinder are set below the central single column.

[0004] However, the main part of the anchor foundation is buried deep below the seabed mud surface, and its operating status is difficult to observe directly, resulting in a high risk of structural failure. Summary of the Invention

[0005] In view of this, the present invention provides an offshore wind power multi-tube cooperative suction anchor structure to solve the problem that the operating status of the existing anchor foundation is difficult to directly observe, resulting in a high risk of structural failure.

[0006] The offshore wind power multi-tube coordinated suction anchor structure provided by the present invention includes a load-bearing mechanism, a detection mechanism, a control terminal, and an alarm. The detection mechanism includes a detection member and a data collector. The detection member is mounted on the load-bearing mechanism and is in communication with the detection member. The data collector is used to collect, process, and store real-time data. The control terminal is in communication with the data collector and has a data threshold. When the received data exceeds the data threshold, it generates an alarm signal. The alarm is in communication with the control terminal and is used to receive the alarm signal and issue an alarm.

[0007] Beneficial effects: By using detection parts installed on the supporting mechanism to measure the physical state of the cylindrical structure itself buried deep under the mud surface, and the data collector continuously collects real-time data from the detection parts, processes and stores it, it can continuously monitor the structural condition of the supporting mechanism itself, and generate an alarm signal when the threshold is exceeded and transmit it to the alarm part, so as to give timely warnings and improve the safety and reliability of offshore wind power foundations.

[0008] In an optional embodiment, the carrying mechanism includes a carrying platform and a suction anchor group, wherein multiple suction anchors in the suction anchor group are arranged in a circular array around the carrying platform, and a negative pressure interface is provided on the top of any suction anchor, which is connected to the pump group through a pipeline; the detection member includes a tilt detection member group, including a first tilt detection member and a second tilt detection member, the first tilt detection member and the second tilt detection member are both installed on the top of the carrying platform and are both communicatively connected to the control terminal through a data collector, the first tilt detection member is arranged on the same side as one of the suction anchors, and the second tilt detection member is arranged on the same diameter as the first tilt detection member on the other side of the carrying platform; wherein the distance between the first tilt detection member and the second tilt detection member is d, the collected data are Z1 and Z2 respectively, the inclination is calculated as (Z1-Z2) / d, and the inclination is provided with a positive limit threshold and a negative limit threshold. When the inclination value is greater than the positive limit threshold, the suction flow of the pump group where the suction anchor is arranged on the same side as the first tilt detection member is increased, and when the inclination value is less than the negative limit threshold, the suction flow of the pump group where the suction anchor is arranged on the same side as the first tilt detection member is reduced.

[0009] Beneficial effect: By providing a first tilt detection member and a second tilt detection member, when the load-bearing platform tilts toward the side where the first tilt detection member is installed (tilt > positive limit threshold), the suction flow of the pump group corresponding to the suction anchor on that side is increased, and the negative pressure (i.e., anchoring force) of the suction anchor on that side is increased, thereby generating a corrective torque to resist the tilt. Conversely, when the platform tilts toward the side of the second tilt detection member (tilt < negative limit threshold), the flow on that side is reduced, and the anchoring force on the opposite side is relatively enhanced to achieve correction. In other words, the phenomenon of uneven settlement or tilt of the load-bearing platform can be improved.

[0010] In an optional embodiment, the detection member also includes a settlement detection member, which is arranged at the center position of the top of the supporting platform. By selecting a fixed reference as a reference point, the settlement detection member calculates the displacement change of the reference point to obtain the actual settlement; wherein, during the construction stage, if the actual settlement does not meet the design target settlement, the pump group is controlled to continue suctioning to achieve sinking.

[0011] Beneficial Effects: By placing a settlement detection device (such as a high-precision displacement sensor or laser ranging device) at the center of the top of the load-bearing platform, the displacement change of the fixed reference point is calculated in real time, accurately quantifying the actual settlement. For example, if the actual settlement does not reach the design target value, the pump group is controlled to continue suction, accelerating the penetration of the anchor body by increasing the negative pressure until the design depth is reached.

[0012] In an optional embodiment, the offshore wind power multi-cylinder cooperative suction anchor structure also includes a mooring cable, one end of the mooring cable along its length is installed on a bearing platform, and the other end is installed on a floating platform; the detection component also includes a first stress detection component, the first stress detection component is installed on the mooring cable, and is used to detect the stress on the mooring cable. The first stress detection component is communicatively connected to the control terminal through a data acquisition device, and is used to transmit the measured mooring cable stress value to the control terminal; the control terminal is provided with a mooring cable stress threshold. When the mooring cable stress value measured by the first stress detection component exceeds the mooring cable stress threshold, the control terminal generates an alarm signal and transmits it to the alarm component.

[0013] Beneficial Effects: By installing a first stress detector on the mooring line, the tensile stress on the mooring line can be measured in real time and the data transmitted to the control terminal for continuous monitoring of the mooring line. When the measured stress value exceeds the mooring line stress threshold, an alarm signal is generated and transmitted to the alarm device for warning. In other words, the real-time stress monitoring and threshold alarm mechanism can promptly detect and intervene in overload conditions, preventing the mooring line from exceeding its design load capacity due to cumulative damage or a single extreme event, thereby helping to maintain its structural integrity.

[0014] In an optional embodiment, the offshore wind power multi-tube cooperative suction anchor structure also includes a mounting plate, which is installed on the supporting platform and is used to fix one end of the mooring cable along its length direction; the detection component also includes a second stress detection component, which is installed on the mounting plate and is used to detect the stress on the mounting plate. The second stress detection component is communicatively connected to the control terminal through a data acquisition device and is used to transmit the measured mounting plate stress value to the control terminal; the control terminal is provided with a mounting plate stress threshold. When the mounting plate stress value measured by the first stress detection component exceeds the mounting plate stress threshold, the control terminal generates an alarm signal and transmits it to the alarm component.

[0015] Beneficial Effects: By installing a second stress detector (such as a fiber Bragg grating sensor or MEMS stress sensor) on the mounting plate, the tensile / shear stress it experiences can be measured in real time, forming a continuous dynamic monitoring curve of the stress on the mounting plate. This allows for visualization of stress changes and provides an accurate basis for real-time decision-making. This also complements mooring line stress monitoring. If the mooring line is stressed normally but the mounting plate stress exceeds the limit, local structural problems on the platform, such as cracks in the mounting plate welds, can be quickly identified, avoiding single-detection blind spots.

[0016] In an optional embodiment, any suction anchor corresponds to a tilt detection component group.

[0017] Beneficial Effects: In multi-tube suction anchor systems, individual anchor tube tilt can be caused by variations in seabed geology, scour pit formation, or localized load anomalies. Each suction anchor is equipped with a dedicated detection group, enabling independent, real-time monitoring of its posture, preventing failures at individual anchor points from being masked by overall platform data. Furthermore, the tilt data for each anchor point is integrated through the control terminal, visually displaying the overall settlement and deflection trends of the foundation structure, including overall rotational tilt and diagonal warping.

[0018] In an optional embodiment, the bearing mechanism further includes a central column and a connecting assembly, the central column is installed at the bottom of the bearing platform, and the connecting assembly is used to connect the central column and the suction anchor.

[0019] Beneficial effects: The central column serves as a force-transmitting component between the bearing platform and the suction anchor. It can transfer the load on the bearing platform to the suction anchor through the connecting assembly, reduce the shearing effect of the lateral force on the suction anchor, improve the ability of the entire bearing mechanism to resist overturning, sliding and deformation, and enhance the overall stability of the system in complex marine environments (such as wind, waves, and ocean currents).

[0020] In an optional embodiment, the connection assembly includes a secondary column, a connecting member, and a reinforcement member. The secondary column is mounted on top of the suction anchor; one end of the connecting member is mounted on the bottom of the central column, and the other end is mounted on the bottom of the secondary column; the reinforcement member is located above the connecting member and is connected between the central column and the secondary column.

[0021] Beneficial effects: As an extension structure of the top of the suction anchor, the secondary column can evenly distribute the vertical load (such as the wind turbine's own weight and wind load) transmitted from the central column to a larger stress-bearing area of ​​the suction anchor, reducing local stress concentration. The connecting parts (such as high-strength bolts or welded flanges) are respectively connected to the bottom of the central column and the bottom of the secondary column at both ends to form a rigid connection path, directly transmitting vertical force and suppressing lateral displacement. The reinforcement is connected between the central column and the secondary column to form a second rigid support higher than the connecting parts, significantly reducing the risk of single-point failure.

[0022] In an optional embodiment, the offshore wind power multi-tube cooperative suction anchor structure also includes a tidal energy unit, which includes a tidal energy component, an energy storage battery, an energy storage converter, and a battery management system. The tidal energy component is used to receive tidal energy and convert it into electrical energy. The tidal energy component includes an impeller, the impeller axis is parallel to the direction of the ocean current, and the impeller is fixedly installed above the carrier platform; the energy storage battery is installed above the carrier platform, and the energy storage battery is electrically connected to the tidal energy component through a wire, and is used to convert electrical energy into chemical energy; the energy storage converter is installed above the carrier platform, and the energy storage converter is electrically connected to the energy storage battery through a wire, and the energy storage converter is electrically connected to the detection component, and the energy storage converter is electrically connected to the data collector; the battery management system is in communication connection with the energy storage battery, and the battery management system is in communication connection with the energy storage converter.

[0023] Beneficial effects: By setting the impeller axis parallel to the direction of the ocean current, the kinetic energy of the tide can be captured and converted into electrical energy. By using wires to connect the energy storage battery and the energy storage converter in sequence, the generated electrical energy can be directly transmitted to the energy storage battery in the form of direct current for storage, and converted into alternating current and output when needed. That is, an energy transmission path from tidal energy capture, electrical energy storage, electrical energy conversion and output is realized. By connecting the battery management system with the energy storage battery and the energy storage converter to form a closed-loop control system, real-time monitoring and data collection of the key states of the system (ocean current, battery, converter) can be achieved, and intelligent coordination, optimized operation and active safety protection of the energy storage charging and discharging process can be achieved.

[0024] In an optional embodiment, the number of the suction anchors is at least three, and the at least three suction anchors are evenly distributed around the central column.

[0025] Beneficial effect: At least three suction anchors are evenly distributed around the central column to form a stable geometric structure, which evenly distributes the load of the supporting platform or floating body (such as the weight of the wind turbine, wind load, and wave impact force) to multiple anchor points, achieving uniform force and avoiding overload failure of a single anchor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the specific embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 A three-dimensional view of an offshore wind power multi-tube coordinated suction anchor structure provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the power (electric energy) transmission direction, control signal direction, and data transmission direction of the monitoring system in the offshore wind power multi-tube cooperative suction anchor structure provided by an embodiment of the present invention;

[0029] Figure 3 A three-dimensional view of an offshore wind power multi-tube coordinated suction anchor structure provided by an embodiment of the present invention, in which four suction tubes are provided;

[0030] Figure 4 A three-dimensional view of a connection assembly of an offshore wind power multi-tube cooperative suction anchor structure provided by an embodiment of the present invention, wherein the connection member and the reinforcement member are webs and wing plates;

[0031] Figure 5A three-dimensional view of the offshore wind power multi-tube cooperative suction anchor structure provided by an embodiment of the present invention in a single-point mooring mode;

[0032] Figure 6 A three-dimensional view of the offshore wind power multi-tube cooperative suction anchor structure provided by an embodiment of the present invention when it is in a multi-point mooring mode.

[0033] Description of reference numerals:

[0034] 1. Carrying mechanism; 11. Carrying platform; 12. Suction anchor; 121. Anchor body; 122. Beam-slab structure; 13. Center column; 14. Connecting assembly; 141. Secondary column; 142. Connecting piece; 143. Reinforcement piece;

[0035] 2. Testing organization; 21. Testing parts; 22. Data collector;

[0036] 3. Mooring line;

[0037] 4. Floating platform;

[0038] 5. Mounting plate;

[0039] 6. Tidal energy unit; 61. Tidal energy component; 611. Impeller; 62. Energy storage battery; 63. Energy storage inverter; 64. Battery management system. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0041] In the description of this application, it should be understood that the terms "center", "up", "down", "vertical", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0042] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0044] The following combination Figures 1 to 6 , describing embodiments of the present invention.

[0045] According to an embodiment of the present invention, an offshore wind power multi-tube coordinated suction anchor structure is provided, such as Figure 1 As shown, it includes a carrying mechanism 1, a detection mechanism 2, a control terminal and an alarm component.

[0046] like Figure 2 As shown, the detection mechanism 2 is provided with a detection component 21 and a data collector 22. The detection component 21 is installed on the supporting mechanism 1, and the data collector 22 is communicatively connected with the detection component 21. The data collector 22 is used to collect, process and store real-time data; the control terminal is communicatively connected with the data collector 22, and the control terminal is provided with a data threshold. When the received data exceeds the data threshold, an alarm signal is generated; the alarm component is communicatively connected with the control terminal for receiving the alarm signal and issuing an alarm.

[0047] In this arrangement, the detection component 21 is installed on the supporting mechanism 1 to measure the physical state of the cylindrical structure itself buried deep under the mud surface (such as stress, strain, displacement, tilt angle, etc.), and the data collector 22 continuously collects real-time data from the detection component 21, processes and stores it, and can continuously monitor the structural condition of the supporting mechanism 1 itself. When the threshold is exceeded, an alarm signal will be generated and transmitted to the alarm component, so as to give a timely alarm and improve the safety and reliability of the offshore wind power foundation.

[0048] It can be explained that, during normal operation, the detection data stored in the data collector 22 is extracted in real time by the operation and maintenance vessel, underwater robot regularly or the wind farm network (feedback to the control terminal).

[0049] Preferably, a method of extracting detection data in real time is used.

[0050] It can be explained that the detection member 21 detects the structure of the supporting mechanism 1 , and the type and arrangement position of the detection member 21 are changed according to the detection content.

[0051] Among them, the detection part 21 includes but is not limited to a first stress detection part for detecting stress on the mooring cable 3, a mounting plate stress detection part for detecting stress on the mounting plate 5, a settlement detection part for detecting settlement of the supporting platform 11, and a first tilt detection part and a second tilt detection part for detecting the degree of inclination of the supporting platform 11.

[0052] Specifically, the supporting mechanism 1 includes a supporting platform 11 and a suction anchor group. Multiple suction anchors 12 in the suction anchor group are arranged in a circular array around the supporting platform 11. A negative pressure interface is provided on the top of any suction anchor 12, and the negative pressure interface is connected to the pump group through a pipeline.

[0053] It can be explained that the detection member 21 includes a tilt detection member group, including a first tilt detection member and a second tilt detection member. The first tilt detection member and the second tilt detection member are both installed on the top of the supporting platform 11 and are both communicated with the control terminal through the data collector 22. The first tilt detection member is arranged on the same side as one of the suction anchors 12, and the second tilt detection member is arranged on the same diameter as the first tilt detection member on the other side of the supporting platform 11.

[0054] Among them, the distance between the first tilt detection part and the second tilt detection part is d, the collected data are Z1 and Z2 respectively, the inclination is calculated as (Z1-Z2) / d, and the inclination is provided with a positive limit threshold and a negative limit threshold. When the inclination value is greater than the positive limit threshold, the suction flow of the pump group where the suction anchor 12 is arranged on the same side as the first tilt detection part is increased. When the inclination value is less than the negative limit threshold, the suction flow of the pump group where the suction anchor 12 is arranged on the same side as the first tilt detection part is reduced.

[0055] With this arrangement, by providing a first tilt detection member and a second tilt detection member, when the supporting platform 11 tilts toward the side where the first tilt detection member is installed (tilt > positive limit threshold), the suction flow of the pump group corresponding to the suction anchor 12 on that side is increased, thereby increasing the negative pressure (i.e., anchoring force) of the suction anchor 12 on that side, thereby generating a corrective torque to resist the tilt. Conversely, when the platform tilts toward the side of the second tilt detection member (tilt < negative limit threshold), the flow on that side is reduced, and the anchoring force on the opposite side is relatively enhanced to achieve correction. In other words, the phenomenon of uneven settlement or tilt of the supporting platform 11 can be improved.

[0056] It can be explained that when the number of suction anchors 12 is an odd number (such as 1, 3, 5, etc.), the bottom of the second inclination detection member is empty and no suction anchor 12 is provided; when the number of suction anchors 12 is an even number (such as 2, 4, 6, etc.), the bottom of the second inclination detection member is also a suction anchor 12. At this time, when the inclination value obtained by the data measured by the first inclination detection member and the second inclination detection member corresponding to any pair of suction anchors 12 is greater than the positive limit threshold, the suction flow of the pump group where the suction anchor 12 is arranged on the same side as the first inclination detection member is increased, and the suction flow of the pump group where the suction anchor 12 is arranged on the same side as the second inclination detection member is reduced; when the inclination value is less than the negative limit threshold, the suction flow of the pump group where the suction anchor 12 is arranged on the same side as the first inclination detection member is reduced, and the suction flow of the pump group where the suction anchor 12 is arranged on the same side as the second inclination detection member is increased.

[0057] In one embodiment, the detection member 21 also includes a settlement detection member, which is arranged at the top center position of the supporting platform 11. By selecting a fixed reference as a reference point, the settlement detection member calculates the displacement change of the reference point to obtain the actual settlement; wherein, during the construction stage, if the actual settlement does not meet the design target settlement, the pump group is controlled to continue suctioning to achieve sinking.

[0058] In this way, by arranging a settlement detection component (such as a high-precision displacement sensor or a laser ranging device) at the top center of the supporting platform 11, the displacement change of the reference point is calculated in real time with a fixed reference point as the benchmark, and the actual settlement amount can be accurately quantified.

[0059] For example, when the actual settlement amount does not reach the design target value, the pump group is controlled to continue pumping, and the penetration of the anchor body 121 is accelerated by increasing the negative pressure until the design depth is reached.

[0060] It can be explained that, during the operation phase, if the amount of settlement changes significantly within a short period of time, an alarm signal is generated and transmitted to the alarm component.

[0061] In one embodiment, Figure 1 、 Figures 3 to 6 As shown, the offshore wind power multi-tube coordinated suction anchor structure further includes a mooring cable 3 , one end of the mooring cable 3 along its length direction is installed on the bearing platform 11 , and the other end is installed on the floating platform 4 .

[0062] It can be explained that the detection component 21 also includes a first stress detection component, which is installed on the mooring cable 3 and is used to detect the stress on the mooring cable 3. The stress is obtained based on the strain size of the mooring cable 3 and the stress-strain relationship of the first stress detection component. The first stress detection component is connected to the control terminal through the data acquisition device 22 for transmitting the measured mooring cable stress value to the control terminal.

[0063] Among them, the control terminal is provided with a mooring cable stress threshold. When the mooring cable stress value measured by the first stress detection component exceeds the mooring cable stress threshold, the control terminal generates an alarm signal and transmits it to the alarm component.

[0064] This arrangement, by installing a first stress detector on mooring line 3, allows for real-time measurement of the tensile stress experienced by mooring line 3. This data is then transmitted to a control terminal, enabling continuous monitoring of mooring line 3. When the measured stress exceeds the mooring line stress threshold, an alarm signal is generated and transmitted to the alarm device, triggering an alert. This real-time stress monitoring and threshold alarm mechanism enables timely detection and intervention of overload conditions, preventing mooring line 3 from exceeding its designed load-bearing capacity due to cumulative damage or a single extreme event, thereby helping to maintain its structural integrity.

[0065] In one embodiment, Figure 1 、 Figures 3 to 6 As shown, the offshore wind power multi-tube coordinated suction anchor structure further includes a mounting plate 5 , which is mounted on the bearing platform 11 and is used to fix one end of the mooring cable 3 along its length direction.

[0066] It can be explained that the detection component 21 also includes a second stress detection component, which is installed on the mounting plate 5 and is used to detect the stress applied to the mounting plate 5. The stress is obtained based on the strain size of the mounting plate 5 and the stress-strain relationship of the second stress detection component. The second stress detection component is connected to the control terminal through the data acquisition device 22 for transmitting the measured stress value of the mounting plate to the control terminal.

[0067] Among them, the control terminal is provided with a mounting plate stress threshold. When the mounting plate stress value measured by the first stress detection component exceeds the mounting plate stress threshold, the control terminal generates an alarm signal and transmits it to the alarm component.

[0068] With such an arrangement, by installing a second stress detection component (such as a fiber grating sensor or a MEMS stress sensor) on the mounting plate 5, the tensile / shear stress it is subjected to can be measured in real time, forming a continuous dynamic monitoring curve of the stress on the mounting plate 5, visualizing the stress changes and providing an accurate basis for real-time decision-making.

[0069] At the same time, it complements the stress monitoring of the mooring line 3. If the mooring line 3 is stressed normally but the stress of the mounting plate 5 exceeds the limit, the local structural problem of the platform, such as cracking of the mounting plate 5 welding, can be quickly identified, avoiding a single detection blind spot.

[0070] Furthermore, the number of the mounting plates 5 is one or more, and the specific number, size, and arrangement are determined according to the magnitude of the mooring force, the mooring method, and the stress and fatigue analysis of the supporting mechanism 1 .

[0071] Furthermore, the mooring method is single point mooring (such as Figure 5 ), shared moorings and multi-point moorings (as shown in Figure 6 One of the ones shown).

[0072] In one embodiment, each suction anchor 12 corresponds to a tilt detection component set.

[0073] With this setup, tilting of individual anchors in a multi-anchor suction anchor system can be caused by variations in seabed geology, scour pit formation, or localized load anomalies. Each suction anchor 12 is equipped with a dedicated detection group to independently monitor its posture in real time, preventing failures at individual anchor points from being masked by overall platform data.

[0074] At the same time, the tilt data of each anchor point are integrated through the control terminal, which can intuitively present the overall settlement and deflection trends of the foundation structure, such as overall rotation and diagonal warping.

[0075] In one embodiment, Figure 1 、 Figures 3 to 6 As shown, the carrying mechanism 1 further includes a central column 13 and a connecting assembly 14 . The central column 13 is installed at the bottom of the carrying platform 11 . The connecting assembly 14 is used to connect the central column 13 and the suction anchor 12 .

[0076] In this configuration, the central column 13 serves as a force-transmitting component between the supporting platform 11 and the suction anchor 12, and can transmit the load on the supporting platform 11 to the suction anchor 12 through the connecting component 14, thereby reducing the shearing effect of the lateral force on the suction anchor 12, improving the ability of the entire supporting mechanism 1 to resist overturning, slipping and deformation, and enhancing the overall stability of the system in complex marine environments (such as wind, waves, and ocean currents).

[0077] It can be explained that the central column 13 is welded and installed on the bottom of the carrying platform 11 .

[0078] In one embodiment, Figure 1 、 Figures 3 to 6 As shown, the connection assembly 14 includes a secondary column 141, a connecting member 142, and a reinforcement member 143. The secondary column 141 is mounted on the top of the suction anchor 12; one end of the connecting member 142 is mounted on the bottom of the central column 13, and the other end is mounted on the bottom of the secondary column 141; the reinforcement member 143 is located above the connecting member 142 and is connected between the central column 13 and the secondary column 141.

[0079] In this configuration, the secondary column 141 serves as an extension structure of the top of the suction anchor 12, which can evenly distribute the vertical load (such as the wind turbine's own weight and wind load) transmitted from the central column 13 to a larger stress-bearing area of ​​the suction anchor 12, reducing local stress concentration. The connecting piece 142 (such as a high-strength bolt or a welded flange) connects the bottom of the central column 13 and the bottom of the secondary column 141 at both ends, forming a rigid connection path, directly transmitting vertical force and suppressing lateral displacement. The reinforcement 143 is connected between the central column 13 and the secondary column 141, forming a second rigid support higher than the connecting piece 142, significantly reducing the risk of single-point failure.

[0080] It can be explained that the secondary column 141 , the connecting member 142 and the reinforcing member 143 as a whole present a K-type connection node.

[0081] Furthermore, in this embodiment, Figure 1 、 Figure 3 、 Figure 5 and Figure 6 As shown, the connecting member 142 and the reinforcing member 143 are both tubular in structure.

[0082] Of course, in other optional embodiments, such as Figure 4 As shown, the connecting member 142 and the reinforcing member 143 are connected in a web and wing plate manner, such as by welding.

[0083] It should be noted that the number of the connection components 14 is the same as the number of the suction anchors 12 . During installation, the plurality of connection components 14 are evenly distributed around the circumference of the central column 13 .

[0084] In one embodiment, Figure 1 、 Figures 3 to 6 As shown, the offshore wind power multi-tube cooperative suction anchor structure also includes a tidal energy unit 6 , which includes a tidal energy component 61 , an energy storage battery 62 , an energy storage converter 63 and a battery management system 64 . The tidal energy component 61 is used to receive tidal energy and convert it into electrical energy. The tidal energy component 61 includes an impeller 611. The axis of the impeller 611 is parallel to the direction of the ocean current, and the impeller 611 is fixedly installed above the carrying platform 11; the energy storage battery 62 is installed above the carrying platform 11, and the energy storage battery 62 is electrically connected to the tidal energy component 61 through a wire, and is used to convert electrical energy into chemical energy; the energy storage inverter 63 is installed above the carrying platform 11, and the energy storage inverter 63 is electrically connected to the energy storage battery 62 through a wire, the energy storage inverter 63 is electrically connected to the detection component 21, and the energy storage inverter 63 is electrically connected to the data collector 22; the battery management system 64 is communicatively connected to the energy storage battery 62 to regulate the power output of the energy storage battery 62, and the battery management system 64 is communicatively connected to the energy storage inverter 63.

[0085] In this way, by setting the axis of the impeller 611 parallel to the direction of the ocean current, the kinetic energy of the tide can be captured and converted into electrical energy. By using wires to connect the energy storage battery 62 and the energy storage converter 63 in sequence, the generated electrical energy can be directly transmitted to the energy storage battery 62 in the form of direct current for storage, and converted into alternating current and output when needed.

[0086] That is, the energy transmission path from tidal energy capture, electric energy storage, electric energy conversion and output is realized.

[0087] By connecting the battery management system 64 with the energy storage battery 62 and the energy storage converter 63, a closed-loop control system is formed to achieve real-time monitoring and data collection of key system states (ocean current, battery, converter), and realize intelligent coordination, optimized operation and active safety protection of the energy storage charging and discharging process.

[0088] It can be explained that the number, size, and relative distance of the suction anchors 12 are determined based on the calculation results of the settlement penetration resistance, bearing capacity, and floating stability.

[0089] In one embodiment, Figure 1 、 Figures 3 to 6 As shown, the number of the suction anchors 12 is at least three, and the at least three suction anchors 12 are evenly distributed around the central column 13 in a circumferential manner.

[0090] In this arrangement, at least three suction anchors 12 are evenly distributed around the central column 13 in a circular pattern to form a stable geometric structure, which evenly distributes the load of the supporting platform 11 or floating body (such as the wind turbine's own weight, wind load, and wave impact force) to multiple anchor points, achieving uniform force and avoiding overload failure of a single anchor.

[0091] It can be explained that, if Figure 1 、 Figures 3 to 6 As shown, the suction anchor 12 includes an anchor body 121 and a beam-plate structure 122 welded to the top of the anchor body 121 and used to prevent the anchor body 121 from yielding and buckling during the sinking process of the suction anchor 12.

[0092] During installation, the beam-slab structure 122 is welded to the bottom of the secondary column 141 .

[0093] The offshore wind power multi-tube coordinated suction anchor structure mentioned in the above embodiment includes the following steps during transportation and installation:

[0094] S1: Complete the power transmission, control signal and data transmission connection between the tidal energy component 61, the energy storage battery 62, the energy storage converter 63, the battery management system 64, the detection unit 21, the data collector 22 and the control terminal;

[0095] S2: Connect the negative pressure interfaces on the top of all the suction anchors 12 in the suction anchor group to an external pump group through pipes. The pump group is equipped with a two-way valve that can inject or suck out gas (or liquid) and is placed on a small construction vessel. Adjust the pump group to continuously inject air into the suction anchor 12.

[0096] S3: At the construction site, a shore crane is used to slowly lift the offshore wind turbine multi-tube coordinated suction anchor structure into the harbor;

[0097] S4: After the offshore wind turbine multi-tube coordinated suction anchor structure is self-floating and stable, remove the lifting device;

[0098] S5: Use a small tugboat to tow the offshore wind turbine multi-tube coordinated suction anchor structure to the anchor point installation position;

[0099] S6: After reaching the machine site and positioning is completed, the flow rate of each pump group is adjusted to extract gas, reducing the buoyancy of the overall structure and allowing the offshore wind power multi-tube coordinated suction anchor structure to sink;

[0100] S7: When the suction anchor group approaches the seabed, the pump group flow corresponding to each suction anchor 12 is adjusted separately or simultaneously to achieve adjustment and control of the sinking tilt angle of the offshore wind power multi-tube coordinated suction anchor structure to ensure that the suction anchor group is vertically inserted into the seabed surface;

[0101] S8: When the bottom of the suction anchor group sinks into the soil at a depth of 2-3m due to its own weight, the corresponding pump group of each suction anchor 12 is started again to start drainage and negative pressure sinking;

[0102] S9: When the offshore wind power multi-tube coordinated suction anchor structure sinks into place, the connection between each suction anchor 12 and the corresponding pump group is released to complete the construction.

[0103] With this arrangement, the method can enable the transportation and installation of the offshore wind power multi-tube coordinated suction anchor structure without the need for large-scale transportation and lifting barges, and directly utilize the characteristics of the structure's low center of gravity and large waterline surface area, saving engineering costs.

[0104] In addition, the above-mentioned offshore wind power multi-tube cooperative suction anchor structure is not only suitable for offshore wind power floating foundations, but can also be used for floating photovoltaic system foundations.

[0105] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An offshore wind power multi-tube coordinated suction anchor structure, characterized in that: include: Carrying mechanism (1); The detection mechanism (2) is provided with a detection member (21) and a data collector (22), wherein the detection member (21) is mounted on the supporting mechanism (1), and the data collector (22) is in communication connection with the detection member (21), and the data collector (22) is used to collect, process and store real-time data; A control terminal is connected to the data collector (22) for communication, and the control terminal is provided with a data threshold value, and generates an alarm signal when the received data exceeds the data threshold value; The alarm component is connected to the control terminal for receiving the alarm signal and issuing an alarm.

2. The offshore wind power multi-tube coordinated suction anchor structure according to claim 1 is characterized in that: The bearing mechanism (1) comprises a bearing platform (11) and a suction anchor group, wherein a plurality of suction anchors (12) in the suction anchor group are arranged in a circular array around the bearing platform (11), and a negative pressure interface is provided on the top of each suction anchor (12), and the negative pressure interface is connected to the pump group through a pipeline; The detection member (21) includes a tilt detection member group, including a first tilt detection member and a second tilt detection member, the first tilt detection member and the second tilt detection member are both installed on the top of the carrying platform (11) and are both communicatively connected to the control terminal via a data collector (22), the first tilt detection member is arranged on the same side as one of the suction anchors (12), and the second tilt detection member is arranged on the same diameter as the first tilt detection member on the other side of the carrying platform (11); The distance between the first tilt detection member and the second tilt detection member is d, the collected data are Z1 and Z2 respectively, the tilt is calculated as (Z1-Z2) / d, and the tilt is provided with a positive limit threshold and a negative limit threshold. When the tilt value is greater than the positive limit threshold, the suction flow of the pump group where the suction anchor (12) is arranged on the same side as the first tilt detection member is increased. When the tilt value is less than the negative limit threshold, the suction flow of the pump group where the suction anchor (12) is arranged on the same side as the first tilt detection member is reduced.

3. The offshore wind power multi-tube coordinated suction anchor structure according to claim 2 is characterized in that: The detection member (21) further includes a settlement detection member, which is arranged at the center of the top of the carrying platform (11). By selecting a fixed reference as a reference point, the settlement detection member calculates the displacement change of the reference point to obtain the actual settlement amount; Among them, during the construction stage, if the actual settlement does not meet the design target settlement, the pump group is controlled to continue pumping to achieve sinking.

4. The offshore wind power multi-tube coordinated suction anchor structure according to claim 2, characterized in that: The offshore wind power multi-tube coordinated suction anchor (12) structure further includes a mooring cable (3), wherein one end of the mooring cable (3) along its length direction is installed on the bearing platform (11), and the other end is installed on the floating platform (4); The detection member (21) further includes a first stress detection member installed on the mooring cable (3) for detecting the stress on the mooring cable (3); the first stress detection member is connected to the control terminal via a data acquisition device (22) for transmitting the measured mooring cable stress value to the control terminal; The control terminal is provided with a mooring cable stress threshold. When the mooring cable stress value measured by the first stress detection component exceeds the mooring cable stress threshold, the control terminal generates an alarm signal and transmits it to the alarm component.

5. The offshore wind power multi-tube coordinated suction anchor structure according to claim 4 is characterized in that: The offshore wind power multi-tube coordinated suction anchor (12) structure further includes a mounting plate (5) mounted on the bearing platform (11) and used to fix one end of the mooring cable (3) along its length direction; The detection member (21) further includes a second stress detection member, which is mounted on the mounting plate (5) and is used to detect stress on the mounting plate (5); the second stress detection member is communicatively connected to the control terminal via the data acquisition device (22) and is used to transmit the measured mounting plate stress threshold to the control terminal; The control terminal is provided with a mounting plate stress threshold. When the mounting plate stress threshold measured by the first stress detection component exceeds the mounting plate stress threshold, the control terminal generates an alarm signal and transmits it to the alarm component.

6. The offshore wind power multi-tube coordinated suction anchor structure according to any one of claims 2 to 5, characterized in that: Any suction anchor (12) corresponds to a tilt detection component group.

7. The offshore wind power multi-tube coordinated suction anchor structure according to any one of claims 2 to 5, characterized in that: The bearing mechanism (1) further comprises a central column (13) and a connecting assembly (14), wherein the central column (13) is mounted on the bottom of the bearing platform (11), and the connecting assembly (14) is used to connect the central column (13) and the suction anchor (12).

8. The offshore wind power multi-tube coordinated suction anchor structure according to claim 7, characterized in that: The connecting assembly (14) comprises: A secondary column (141), mounted on the top of the suction anchor (12); A connecting member (142), one end of which is mounted on the bottom of the central column (13) and the other end of which is mounted on the bottom of the secondary column (141); The reinforcing member (143) is located above the connecting member (142), and the reinforcing member (143) is connected between the central column (13) and the secondary column (141).

9. The offshore wind power multi-tube coordinated suction anchor structure according to any one of claims 2 to 5, characterized in that: The offshore wind power multi-tube coordinated suction anchor (12) structure further includes a tidal energy unit (6), wherein the tidal energy unit (6) includes: A tidal energy component (61) is used to receive tidal energy and convert it into electrical energy. The tidal energy component (61) includes an impeller (611). The axis of the impeller (611) is parallel to the direction of the ocean current, and the impeller (611) is fixedly installed above the carrying platform (11); An energy storage battery (62) is installed above the carrying platform (11), and the energy storage battery (62) is electrically connected to the tidal energy component (61) via a wire, and is used to convert electrical energy into chemical energy; An energy storage converter (63) is installed above the carrying platform (11), the energy storage converter (63) is electrically connected to the energy storage battery (62) via a wire, the energy storage converter (63) is electrically connected to the detection element (21), and the energy storage converter (63) is electrically connected to the data collector (22); A battery management system (64) is communicatively connected to the energy storage battery (62), and the battery management system (64) is communicatively connected to the energy storage converter (63).

10. The offshore wind power multi-tube coordinated suction anchor structure according to any one of claims 2 to 5, characterized in that: The number of the suction anchors (12) is at least three.

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