Anchoring system with adjustable anchor chain length and adjustment method

Abstract

The present invention discloses an anchoring system with adjustable anchor chain length and an adjustment method. The anchoring system with adjustable anchor chain length comprises a floating plate, an anchor chain contraction part, a first fixing part and an anchor chain. The floating plate floats on the sea surface, and the floating plate is used to install an offshore wind power device. The anchor chain contraction part is rotatably connected to the floating plate; the first fixing part is arranged on the anchor chain contraction part; one end of the anchor chain is fixed to the seabed through an anchoring structure, and the other end of the anchor chain is provided with a second fixing part, and the second fixing part can be detachably connected to the first fixing part. The anchor chain is wound on the anchor chain contraction part, and the length of the anchor chain is adjusted by rotating the anchor chain contraction part. In this way, the length of the anchor chain can be flexibly adjusted through the anchor chain contraction part to adapt to the changes in different water depths and ocean conditions, ensure the stable anchoring of the floating plate, ensure that the anchor chain always maintains appropriate tension with the seabed, and prevent the floating plate from drifting or overturning due to external forces such as wind and waves, thereby improving the applicability and flexibility of the system.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and in particular to an anchoring system with adjustable anchor chain length and an adjustment method. Background Art

[0002] In recent years, marine renewable energy has developed rapidly, and more and more energy devices are moving towards deep water, such as offshore wind turbines and wave power generation devices. Conventional fixed pile foundations are no longer suitable for deep water areas. Most of the existing floating devices are fastened by anchor chains, but the length of the anchor chains is not easy to adjust, which limits their scope of use. Their use is even more limited in sea areas with large tidal fluctuations. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides an anchoring system with adjustable anchor chain length and an adjustment method.

[0004] A first aspect of the present invention provides an anchor system with adjustable anchor chain length, the anchor system with adjustable anchor chain length comprising:

[0005] A floating plate, the floating plate can float on the sea surface, and the upper surface of the floating plate is used to install an energy device;

[0006] An anchor chain retracting portion, the anchor chain retracting portion is disposed on the lower surface of the floating plate and is rotatably connected to the floating plate;

[0007] A first fixing portion, arranged at the anchor chain contraction portion;

[0008] An anchor chain, wherein the first end of the anchor chain is provided with an anchoring structure, and the anchoring structure is used to be fixed to the seabed; the second end of the anchor chain is provided with a second fixing part, and the second fixing part can be detachably connected to the first fixing part; the anchor chain is wound around the anchor chain contraction part, and the length of the anchor chain is adjusted by rotating the anchor chain contraction part.

[0009] In some embodiments of the present disclosure, the anchor chain retraction portion includes a rotating shaft and a plurality of anchor chain fixings, and the plurality of anchor chain fixings are sequentially sleeved outside the rotating shaft along the length direction of the rotating shaft, each of the anchor chain fixings is provided with one of the first fixing portions, and each of the anchor chain fixings is wound around one of the anchor chains.

[0010] In some embodiments of the present disclosure, an adjustment structure is further provided on the anchor chain contraction portion;

[0011] The rotating shaft is provided with a plurality of groups of center holes, which are arranged along the length direction of the rotating shaft, and the position of one group of the center holes in the length direction of the rotating shaft corresponds to the position of one anchor chain fixing member, and each group of the center holes includes a plurality of first center holes, which are evenly arranged along the circumferential direction of the rotating shaft;

[0012] The inner surface of each anchor chain fixing member is provided with a plurality of slots, and the plurality of slots are arranged along the circumferential direction of the anchor chain fixing member;

[0013] The adjustment structure includes a center column and a clamping block arranged on the side of the center column, the center column is installed in the rotating shaft, and the clamping block can be clamped with one of the first center holes and one of the clamping slots to drive the corresponding anchor chain fixing member to rotate.

[0014] In some embodiments of the present disclosure, an outer surface of the rotating shaft is provided with a mounting groove, and the mounting groove is used to accommodate the anchor chain.

[0015] In some embodiments of the present disclosure, the installation groove is a spiral installation groove, and the rotation directions of the spiral installation grooves on two adjacent anchor chain fixings are opposite;

[0016] The projection of the first fixing portion on each of the anchor chain fixing members on the horizontal plane is uniformly distributed along the circumference of the circle where the projection of the anchor chain fixing member on the horizontal plane is located.

[0017] In some embodiments of the present disclosure, the installation groove is arranged on the outer side of the anchor chain fixing member, a baffle is arranged at the notch of the installation groove, and the first fixing part is installed at the bottom of the installation groove;

[0018] The projection of the first fixing portion on each of the anchor chain fixing members on the horizontal plane is uniformly distributed along the circumference of the circle where the projection of the anchor chain fixing member on the horizontal plane is located.

[0019] In some embodiments of the present disclosure, the anchoring system with adjustable anchor chain length includes:

[0020] The depth detection device is arranged in one-to-one correspondence with the anchor chain and is used to detect the seawater depth at the corresponding position of the anchor chain.

[0021] In some embodiments of the present disclosure, the anchoring system with adjustable anchor chain length further includes:

[0022] A driving and adjusting device, used for driving the anchor chain contraction part to rotate;

[0023] The control device is used to receive the detection signal of the depth detection device, and control the driving and adjusting device according to the detection signal to adjust the corresponding anchor chain.

[0024] In some embodiments of the present disclosure, the first fixing portion includes a first tooth-shaped structure, the second fixing portion includes a second tooth-shaped structure, and the first tooth-shaped structure and the second tooth-shaped structure are meshed with each other.

[0025] A second aspect of the present invention further provides a method for adjusting the length of an anchor chain, using the anchor system with adjustable anchor chain length as described in any one of the first aspects above, the method for adjusting the length of an anchor chain comprising:

[0026] Acquire the seawater depth information where the anchor chain is located;

[0027] Determining the rotation angle of the anchor chain contraction portion corresponding to the anchor chain according to the seawater depth information;

[0028] The anchor chain retracting portion is controlled to rotate at the rotation angle to adjust the length of the anchor chain.

[0029] The anchoring system with adjustable anchor chain length provided by the present invention has at least the following advantages:

[0030] The anchoring system with adjustable anchor chain length provided by the present invention can flexibly adjust the length of the anchor chain to adapt to changes in different water depths and ocean conditions by rotating the contraction part of the anchor chain, so as to enable the anchoring system to cope with complex environments such as tidal changes and changes in water flow speed, maintain the stability and safety of the floating plate, and flexibly adjust the length of the anchor chain according to changes in the ocean water level to ensure the stable anchoring of the floating plate, so as to ensure that the anchor chain always maintains appropriate tension with the seabed, prevent the floating plate from drifting or capsizing due to external forces such as wind and waves, reduce the safety risks caused by too long or too short anchor chains, and improve the applicability and flexibility of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments 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 work.

[0032] Figure 1 A schematic structural diagram of an anchoring system with adjustable anchor chain length provided by an exemplary embodiment of the present invention;

[0033] Figure 2 A schematic cross-sectional view of an anchoring system with adjustable anchor chain length provided by an exemplary embodiment of the present invention;

[0034] Figure 3 A schematic structural diagram of an anchor chain contraction portion provided by another exemplary embodiment of the present invention;

[0035] Figure 4 A schematic structural diagram of an adjustment structure provided for another exemplary embodiment of the present invention;

[0036] Figure 5 A schematic diagram of a top view of a contraction portion of an anchor chain provided by another exemplary embodiment of the present invention;

[0037] Figure 6 A schematic flow chart of a method for adjusting the length of an anchor chain provided by an exemplary embodiment of the present invention;

[0038] Figure 7 A schematic diagram of a floating structure for offshore anchoring capable of recovering wave energy provided by an exemplary embodiment of the present invention;

[0039] Figure 8 for Figure 7 A is a schematic diagram of the enlarged structure of the middle part;

[0040] Fig. 9 for Figure 7 A schematic diagram of the enlarged structure of B;

[0041] Fig.10 A schematic structural diagram of a wave energy recovery device provided by an exemplary embodiment of the present invention;

[0042] Fig.11 A schematic diagram of a partial structure of an anchor chain provided by an exemplary embodiment of the present invention;

[0043] Fig.12 A partial cross-sectional view of an anchor chain provided by an exemplary embodiment of the present invention;

[0044] Fig.13 A partial cross-sectional view of an anchor chain at a second fixing portion provided by an exemplary embodiment of the present invention.

[0045] The following are marked in the accompanying drawings:

[0046] 100, floating plate; 200, offshore wind power device; 300, first fixing part; 4, anchor chain; 42, floating ball; 5, anchoring structure; 41, second fixing part;

[0047] 7. Anchor chain contraction part; 701. Rotation axis; 702. Anchor chain fixing piece; 703. First center hole; 704. Clamping groove; 705. Center column; 706. Clamping block; 707. Mounting groove; 708. Spiral mounting groove; 709. Baffle. DETAILED DESCRIPTION

[0048] The technical scheme in the embodiment of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present invention.

[0049] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0050] In recent years, marine renewable energy has been booming, and more and more energy devices are moving towards deep water, such as offshore wind turbines and wave power generation devices. Conventional fixed pile foundations are no longer suitable for deep water areas. Most of the existing floating devices are fastened with anchor chains, but the length of the anchor chains is not easy to adjust, which greatly limits the wide application of anchor chains in sea areas with different water depths and significant tidal changes. Especially in those sea areas with drastic tidal fluctuations, the challenges faced by traditional anchor chain fastening methods are particularly severe, limiting their scope of use. In sea areas with large tidal fluctuations, their use is more severely restricted.

[0051] Combine the following Figure 1-Figure 6 The embodiments of the present invention are further described.

[0052] In order to solve the above technical problems, the present invention provides an anchoring system with adjustable anchor chain length. By rotating the contraction part of the anchor chain, the length of the anchor chain can be flexibly adjusted to adapt to changes in different water depths and ocean conditions, so that the anchoring system can cope with complex environments such as tidal changes and changes in water flow speed, maintain the stability and safety of the floating plate, and flexibly adjust the length of the anchor chain according to changes in the ocean water level to ensure the stable anchoring of the floating plate. By adjusting the appropriate anchor chain length, it can be ensured that the anchor chain always maintains appropriate tension with the seabed, preventing the floating plate from drifting or overturning due to external forces such as wind and waves, reducing the safety risks caused by too long or too short anchor chains, and improving the applicability and flexibility of the system.

[0053] An exemplary embodiment of the present disclosure provides an anchoring system with adjustable anchor chain length, such as Figure 1 , Figure 2 and Figure 3As shown, the anchoring system with adjustable anchor chain length includes a floating plate 100, an anchor chain contraction portion 7, a first fixing portion 300 and an anchor chain 4. The floating plate 100 can float on the sea surface, and the upper surface of the floating plate 100 is used to install an offshore wind power device 200; it should be noted that the floating plate 100 can be made of waterproof material, and the interior is filled with light materials such as gas or foam to provide sufficient buoyancy, and the offshore wind power device 200 is installed above the floating plate 100, wherein the offshore wind power device 200 includes but is not limited to an offshore wind power device, an offshore wave power generation device, etc. The anchor chain retracting part 7 is arranged on the lower surface of the floating plate 100 and is rotatably connected to the floating plate 100; the first fixing part 300 is arranged on the anchor chain retracting part 7; the first end of the anchor chain 4 is provided with an anchoring structure 5, and the anchoring structure 5 is used to be fixed to the seabed, wherein the anchoring structure 5 includes but is not limited to a suction anchor, a gravity penetration anchor, a power installation anchor, etc., the second end of the anchor chain 4 is provided with a second fixing part 41, and the second fixing part 41 can be detachably connected to the first fixing part 300, and the anchor chain 4 is wound around the anchor chain retracting part 7, and the length of the anchor chain 4 is adjusted by rotating the anchor chain retracting part 7. Exemplarily, a plurality of anchor chains 4 can be provided, and a buoy 42 is provided on one end of each anchor chain 4 close to the second fixing part 41, and the buoy 42 can be used to prevent the anchor chain 4 from sinking.

[0054] In this way, by rotating the anchor chain contraction part 7, the length of the anchor chain 4 can be flexibly adjusted to adapt to changes in different water depths and ocean conditions, so that the anchoring system can cope with complex environments such as tidal changes and changes in water flow speed, and maintain the stability and safety of the floating plate 100. According to changes in the ocean water level, the length of the anchor chain 4 can be flexibly adjusted to ensure the stable anchoring of the floating plate 100, which can ensure that the anchor chain 4 always maintains appropriate tension with the seabed, preventing the floating plate 100 from drifting or capsizing due to external forces such as wind and waves, reducing the safety risks caused by the anchor chain 4 being too long or too short, and improving the applicability and flexibility of the system.

[0055] In some embodiments of the present invention, reference Figure 2 The anchor chain retracting part 7 comprises a rotating shaft 701 and a plurality of anchor chain fixing members 702. The plurality of anchor chain fixing members 702 are sequentially sleeved outside the rotating shaft 701 along the length direction of the rotating shaft 701. Each anchor chain fixing member 702 is provided with a first fixing part 300. Each anchor chain fixing member 702 is wound with an anchor chain 4. For example, referring to Figure 2, the anchor chain fixing member 702 is sleeved outside the rotating shaft 701, and the anchor chain fixing member 702 is rotatably connected to the rotating shaft 701. In this embodiment, the number of the anchor chain fixing members 702 is three, and each anchor chain fixing member 702 is wound with an anchor chain 4. In order to ensure the stability of the floating board 100, the diameter of the anchor chain fixing member 702 is equal to the diameter of the floating board 100, which helps to achieve balanced force of the anchor chain 4 on the floating board 100 and prevents it from tilting or overturning due to uneven force. In this way, the length of each anchor chain 4 can be adjusted according to actual needs to ensure the stability of the floating board 100 and the offshore wind power device 200.

[0056] In some embodiments of the present invention, reference Figure 2 and Figure 4 , the anchor chain contraction part 7 is also provided with an adjustment structure; multiple groups of center hole groups are provided in the rotating shaft 701, and the multiple groups of center hole groups are arranged along the length direction of the rotating shaft 701. The position of one group of center hole groups in the length direction of the rotating shaft 701 corresponds to the position of one anchor chain fixing part 702, that is, multiple groups of center hole groups are arranged at intervals along the length direction of the rotating shaft 701, and one group of center hole groups corresponds to one anchor chain fixing part 702. Exemplarily, three groups of center hole groups are provided on the rotating shaft 701, and each group of center hole groups corresponds to one anchor chain fixing part 702. Each group of center hole groups includes multiple first center holes 703, and the multiple first center holes 703 are evenly arranged along the circumferential direction of the rotating shaft 701; the inner surface of each anchor chain fixing part 702 is provided with multiple card slots 704, and the multiple card slots 704 are arranged along the circumferential direction of the anchor chain fixing part 702. In other embodiments, the card slot 704 can also be set as one and annular; it should be noted that the card slot 704 is adapted to the position of the first center hole 703. The adjustment structure includes a central column 705 and a clamping block 706 disposed on the side of the central column 705. The central column 705 is installed in the rotating shaft 701 and can move along the axis direction of the rotating shaft 701. For example, the central shaft 705 can be driven by a cylinder or a linear motor to move along the axis of the rotating shaft 701. The clamping block 706 can be clamped with one of the first central holes 703 and a clamping slot 704 to drive the corresponding anchor chain fixing member 702 to rotate. By clamping the clamping block 706 of the central column 705 with one of the first central holes 703 and a clamping slot 704, the individual rotation of each anchor chain fixing member 702 can be achieved, and then the length of each anchor chain 4 can be individually controlled, ensuring that the adjustment of each anchor chain 4 is independent, and the adjustment of one anchor chain 4 will not affect the state of other anchor chains 4, thereby improving the stability and reliability of the system.

[0057] It can be understood that in order to prevent the rotation of one of the anchor chain fixings 702 from driving the rotation of other anchor chain fixings 702, a partition can be provided between adjacent anchor chain fixings 702, and the partition is in mirror contact with the relative anchor chain fixings 702 to reduce friction and ensure the movement independence between the anchor chain fixings 702.

[0058] The block 706 can be engaged with the first center hole 703 and the first slot 704 by elastic deformation. In other embodiments, the center column 705 is connected to the block 706 by a telescopic structure, and the telescopic structure can drive the block 706 to expand and contract radially to achieve engagement with the first center hole 703 and the first slot 704.

[0059] In some embodiments of the present invention, reference Figure 2 The outer surface of the rotating shaft 701 is provided with a mounting groove 707, and the mounting groove 707 is used to accommodate the anchor chain 4. In this way, the mounting groove 707 can directly fix the redundant anchor chain 4 on the outer surface of the rotating shaft 701, so that the storage and fixation of the anchor chain 4 are more centralized, and the anchor chain 4 can be effectively prevented from accidentally falling off due to vibration or impact during use, thereby improving the stability of the floating plate 100 and the offshore wind power device 200.

[0060] In some embodiments of the present invention, reference Figure 3 , the mounting groove is a spiral mounting groove 708, and the rotation directions of the spiral mounting grooves 708 on two adjacent anchor chain fixing members 702 are opposite; illustratively, referring to Figure 3 There are three anchor chain fixing members 702, wherein the first and third spiral installation grooves 708 from top to bottom rotate in the same direction, and the middle spiral installation groove 708 rotates in the opposite direction to the other two. The projection of the first fixing portion 300 on each anchor chain fixing member 702 on the horizontal plane, the plurality of first fixing portions 300 are evenly distributed along the circumference of the projection of the anchor chain fixing member 702 on the horizontal plane. It can be understood that, referring to Figure 5 , when the first fixing parts 300 on each anchor chain fixing member 702 are projected on the same horizontal plane, the angles between the two adjacent first fixing parts 300 are equal. In this way, the spiral installation grooves 708 on the two adjacent anchor chain fixing members 702 rotate in opposite directions, so that when the anchor chain 4 is wound in the spiral groove, the anchor chain 4 can be evenly stressed during the winding process, thereby enhancing the stability of the anchor chain 4. At the same time, the angles between the two adjacent first fixing parts 300 are equal, so that the floating plate 100 can evenly distribute the load to each anchor chain 4 when fixed, reducing the concentrated stress on a single anchor chain 4, which helps to ensure the stability of the floating plate 100.

[0061] In some embodiments of the present invention, reference Figure 1 and Figure 2 The mounting groove 707 is arranged on the outer side of the anchor chain fixing member 702, a baffle 709 is arranged at the notch of the mounting groove 707, and the first fixing part 300 is installed at the bottom of the mounting groove 707; illustratively, referring to Figure 1 , a mounting groove 707 is provided on the outer surface of each anchor chain fixing member 702, and the mounting grooves 707 are distributed along the circumference of the anchor chain fixing member 702, and a baffle 709 is provided on at least one side of the upper and lower sides of the notch of the mounting groove 707. In this way, the mounting groove 707 provides a clear fixing position for the anchor chain 4, so that the anchor chain 4 can be wound or fixed according to a predetermined path and position, and at the same time, the baffle 709 enhances the fixing effect of the anchor chain 4, and prevents the anchor chain 4 from sliding, deflecting or falling off in the mounting groove 707. The projection of the first fixing portion 300 on each anchor chain fixing member 702 on the horizontal plane, and the multiple first fixing portions 300 are evenly distributed at circumferential intervals along the circumference of the circle where the projection of the anchor chain fixing member 702 on the horizontal plane is located. It can be understood that, with reference to Figure 5 When the first fixing parts 300 on each anchor chain fixing member 702 are projected on the same horizontal plane, the angles between the two adjacent first fixing parts 300 are equal. In this way, the angles between the two adjacent first fixing parts 300 are equal, so that the floating plate 100 can evenly distribute the load to each anchor chain 4 when fixed, reducing the concentrated stress on a single anchor chain 4, which helps to ensure the stability of the floating plate 100.

[0062] In some embodiments of the present invention, the anchoring system with adjustable anchor chain length includes a depth detection device (not shown in the figure). The depth detection device is arranged in a one-to-one correspondence with the anchor chain 4, and is used to detect the depth of seawater at the corresponding position of the anchor chain 4. It can be understood that the number of depth detection devices is multiple, and the same as the number of anchor chains 4, and each anchor chain 4 is correspondingly provided with a depth detection device. The depth detection device includes but is not limited to an echo sounder (hydroacoustic depth sounder), a pressure sensor, etc. The depth detection device can therefore monitor the depth of seawater at the location of the anchor chain 4 in real time, which is conducive to accurately controlling the length of the anchor chain 4, timely adjusting the length of each anchor chain 4, and ensuring the stability and safety of the floating plate 100 and the offshore wind power device 200.

[0063] In some embodiments of the present invention, the anchoring system with adjustable anchor chain length further includes a driving and adjusting device and a control device. The driving and adjusting device is used to drive the anchor chain contraction part 7 to rotate; the control device is used to receive the detection signal of the depth detection device, and control the driving and adjusting device according to the detection signal to adjust the corresponding anchor chain 4. Exemplarily, the depth detection device converts the detected depth signal into an electrical signal and transmits it to the control device. The control device includes a microprocessor, which is used to receive the detection signal of the depth detection device through the control device, and calculates the length of the anchor chain 4 to be adjusted according to a preset algorithm or operation instruction, and generates a control signal to send to the driving and adjusting device. The driving and adjusting device includes a motor, which is connected to the central column 705, and adjusts the installation position of the block 706 of the central column 705 through the signal of the control device, thereby realizing the rotation direction and angle of the anchor chain fixing 702, wherein the motor can adopt variable frequency speed regulation, accurately control the speed and direction according to the instruction of the control device, and then drive the anchor chain fixing 702 to adjust the length of the anchor chain 4.

[0064] In some embodiments of the present invention, reference Figure 1 , the first fixing part 300 includes a first tooth-shaped structure, the second fixing part 41 includes a second tooth-shaped structure, and the first tooth-shaped structure and the second tooth-shaped structure are meshed. In this way, the mutual meshing of the tooth-shaped structures can form a tight connection, so that the connection between the first fixing part 300 and the second fixing part 41 is more secure, which helps to prevent the anchor chain 4 from sliding or falling off during the fixing process, and improves the reliability of the fixation. At the same time, a first fixing hole is provided on the first fixing part 300, and a second fixing hole is provided on the second fixing part 41. The first fixing hole and the second fixing hole are fixed by a first fastener; wherein the first fixing hole and the second fixing hole can both be threaded holes, and the first fastener can be a bolt. The first fixing hole and the second fixing hole are fixed by the first fastener, which provides basic stability for the connection between the first fixing part 300 and the second fixing part 41, and prevents loosening or falling off due to factors such as vibration and impact. At the same time, according to the load or vibration impact that is actually required to be borne, the number of fasteners can be increased or fasteners with higher strength can be used to ensure the stability of the connection.

[0065] refer to Figure 6 The embodiment of the present invention further provides a method for adjusting the length of an anchor chain, using the anchor system with adjustable anchor chain length as described in any one of the above embodiments, the method for adjusting the length of an anchor chain comprises:

[0066] S1. Obtain the seawater depth information where the anchor chain is located.

[0067] By arranging a depth detection device on the anchor chain 4, the depth of the sea water at the location of the anchor chain 4 can be monitored in real time through the depth detection device, which is conducive to accurately controlling the length of the anchor chain 4, timely adjusting the length of each anchor chain 4, and ensuring the stability and safety of the floating plate 100 and the offshore wind power device 200.

[0068] S2. Determine the rotation angle of the anchor chain contraction portion corresponding to the anchor chain according to the seawater depth information.

[0069] The depth detection device converts the detected depth signal into an electrical signal and transmits it to the control device. The control device includes a microprocessor, which is used to receive the detection signal of the depth detection device, and calculate the length of the corresponding anchor chain 4 to be adjusted according to a preset algorithm or operation instruction, and then obtain the angle at which the corresponding anchor chain fixing part 702 should be rotated, and generate a control signal to be sent to the driving and adjusting device.

[0070] S3. Control the anchor chain retracting part to rotate at a rotation angle to adjust the length of the anchor chain.

[0071] After the driving and adjusting device receives the control signal, it adjusts the installation position of the block 706 of the center column 705, thereby realizing the rotation direction and angle of the anchor chain fixing part 702 corresponding to the anchor chain 4. Among them, the motor can adopt variable frequency speed regulation to accurately control the speed and direction according to the instructions of the control device, thereby driving the anchor chain fixing part 702 to adjust the length of the anchor chain 4.

[0072] Furthermore, the inclination angle of the floating plate can also be obtained, and the rotation angle of each anchor chain fixing member 702 can be comprehensively determined according to the inclination angle of the floating plate and the seawater depth information where the anchor chain is located, so as to level the floating plate while adjusting the anchor chain length to match the seawater depth.

[0073] An exemplary embodiment of the present disclosure also provides a floating structure for offshore anchoring that can recover wave energy. It should be noted that when the energy device arrives at the target sea area, the energy device is connected to each anchor chain of the floating structure for offshore anchoring that can recover wave energy, and the energy device is fixed by the anchor chain. The energy device includes an offshore wind turbine, a wave energy power generation device, etc. At the same time, the floating structure for offshore anchoring that can recover wave energy can also collect wave energy. Figures 7 to 13 As shown, the offshore anchoring floating structure capable of recovering wave energy comprises a floating structure body 1 , a wave energy recovery device 2 , a first fixing portion 3 and an anchor chain 4 .

[0074] Wherein, the floating structure body 1 can float on the sea surface, and the wave energy recovery device 2 is arranged on the floating structure body 1, and is used to recover wave energy when the floating structure body 1 floats on the sea surface. The first fixing part 3 is arranged on the floating structure body 1, and the first end of the anchor chain 4 is provided with a second fixing part 41, and the second fixing part 41 can be detachably connected with the first fixing part 3, for example, it can be a detachable connection method such as snap connection, plug connection, magnetic connection, etc. The second end of the anchor chain 4 is connected to the anchor structure 5. The anchor structure 5 can be, for example, a grip anchor, a Hall anchor, a Speck anchor, etc. Exemplarily, a plurality of anchor chains 4 can be provided, and a buoy 42 is provided on the first end of each anchor chain 4, and the buoy 42 can be used to prevent the anchor chain 4 from sinking.

[0075] The floating structure for offshore anchoring that can recycle wave energy provided in this embodiment is detachably connected between the first fixing part 3 and the second fixing part 41. When the energy device arrives at the target sea area, the energy device is connected to the anchor chain 4 to provide the necessary fixing and stabilizing effect for the energy device, so that the connection between the anchor chain 4 and the floating structure body 1 becomes flexible. When the energy device needs to be maintained, upgraded or transferred, the anchor chain 4 is connected to the floating structure body 1, and the wave energy recovery device 2 on the floating structure body 1 can collect wave energy, thereby avoiding the problem of the traditional anchoring system being idle due to the movement of the energy device. At the same time, the wave energy recovery device 2 can convert the energy of ocean waves into electrical energy or other forms of energy for storage. When the energy device returns to the target sea area, the energy collected by the wave energy recovery device 2 can be transmitted to the energy device, which helps to reduce dependence on fossil fuels, reduce carbon emissions, and protect the environment.

[0076] Of course, it is understandable that when the anchor chain 4 is detached from the floating structure body 1 and fixed to the energy device, the wave energy recovery device 2 on the floating structure body 1 can also continue to recover wave energy and also transmit the collected energy to the energy device, for example, by transmitting the energy to the energy device through the anchor chain 4.

[0077] In some embodiments of the present invention, the floating structure body 1 includes a floating plate 101, a support plate 102 and a column 103. The floating plate 101 is used to float on the sea surface. The support plate 102 is arranged above the floating plate 101, and the column is connected between the floating plate 101 and the support plate 102. There are multiple first fixing parts 3, and the multiple first fixing parts 3 are evenly distributed along the outer circle of the support plate 102. Exemplarily, the floating plate 101 can make the entire structure float stably on the sea surface. The floating plate 101 can be made of waterproof material, and the interior is filled with light materials such as gas or foam to provide sufficient buoyancy. The support plate 102 is supported on the floating plate 101 by the column 103, which can ensure that the device on the support plate 102 can be stably installed and operated. At the same time, multiple first fixing parts 3 are evenly distributed at intervals on the outer circle of the support plate 102, and the number of the first fixing parts 3 is the same as the number of the anchor chain 4, which can improve the anti-overturning ability of the entire structure and ensure that the floating structure body 1 can still maintain stable operation under extreme conditions.

[0078] It is understandable that in other embodiments, the floating structure body 1 may also be arranged in a one-to-one correspondence with the anchor chains 4, that is, each anchor chain 4 is correspondingly arranged with a floating structure body 1.

[0079] In some embodiments of the present invention, the wave energy recovery device 2 includes a float 210, a transmission mechanism and a generator 230. The generator 230 is arranged on the support plate 102, the upper end of the transmission mechanism is connected to the generator 230 through the gearbox 240, and the lower end of the transmission mechanism is connected to the anchor structure 5; the float 210 is arranged on the transmission mechanism, and the float 210 performs a vertical swing along the length direction of the transmission mechanism under the action of waves. By the vertical swing of the float 210 under the action of waves, the wave energy can be efficiently captured and converted into mechanical energy. As the float 210 moves up and down, the transmission mechanism transfers the mechanical energy to the generator 230 to achieve further energy conversion. The generator 230 is arranged on the support plate 102, which provides a stable support platform for the generator 230, helps to reduce the vibration and shaking of the generator 230 during operation, and improves the stability and reliability of power generation.

[0080] In some embodiments of the present invention, the transmission mechanism includes an upper stranding wheel 221, a lower stranding wheel 222, a pre-tensioning wheel 223 and a stranding wire 224. The upper stranding wheel 221 is arranged on the support plate 102; the lower stranding wheel 222 is also arranged on the support plate 102 and is located radially outward of the upper stranding wheel 221; the pre-tensioning wheel 223 is arranged on the anchor structure 5 through the mounting plate 225, the stranding wire 224 is wound around the upper stranding wheel 221, the pre-tensioning wheel 223 and the lower stranding wheel 222 in sequence, and the float 210 is fixed on the stranding wire 224, and the upper stranding wheel 221 and the lower stranding wheel 222 are both connected to the gearbox 240. Exemplarily, the middle part of the stranded wire 224 is wound on the pre-tensioning wheel 223, and a through hole is provided on the support plate 102 for the winding wire to pass through. One end of the stranded wire 224 is wound on the upper stranding wheel 221 through the through hole, and the other end of the stranded wire 224 is wound on the lower stranding wheel 222 through the through hole, and the float 210 is fixed on the stranded wire 224.

[0081] The float 210 can swing vertically along the length direction of the stranded wire 224 under the action of ocean waves. When the float 210 moves upward, the float 210 drives the upper stranding wheel 221 to release the stranded wire 224, and at the same time drives the lower stranding wheel 222 to wind the stranded wire 224. The stranded wire 224 drives the upper stranding wheel 221 to rotate via the lower preload wheel 223, converting the kinetic energy of the float 210 into the rotational motion of the upper stranding wheel 221 and transmitting torque, and then drives the generator 230 to generate electricity through the gearbox 240.

[0082] Similarly, when the float 210 moves downward, the winding converts the potential energy of the float 210 into the rotational motion of the lower winding wheel 222 and transmits torque, which then drives the generator 230 to generate electricity through the gearbox 240. During this process, the lower winding wheel 222 releases the stranded wire 224 and simultaneously drives the upper winding wheel 221 to wind the stranded wire 224.

[0083] In this way, through the vertical swinging motion of the float 210, the kinetic energy and potential energy of the ocean waves can be efficiently converted into mechanical energy (i.e., the rotational motion of the winding wheel), and then transmitted to the generator 230 through the gearbox 240, and finally converted into electrical energy. The direct and continuous energy conversion mechanism improves the overall energy conversion efficiency. When the float 210 rises, the upper winding wheel 221 releases the stranded wire 224 and the lower winding wheel 222 winds the stranded wire 224 to generate electricity; when the float 210 descends, the opposite process generates electricity. This two-way working mode maximizes the utilization of wave energy. At the same time, the stranded wire 224 is simpler and more efficient than traditional gear rack transmission or other mechanical transmissions, has a lower failure rate, and can better overcome problems such as biological adhesion and rust.

[0084] In some embodiments of the present invention, the transmission mechanism further includes a guide rod 250, the upper end of which is connected to the lower surface of the support plate 102, and the lower end of which is connected to the upper surface of the mounting plate 225; the float 210 is slidably connected to the guide rod 250 through a sliding ring. The sliding ring is arranged on the side of the float 210 close to the guide rod 250, the sliding ring is connected to the float 210, the sliding ring is sleeved on the guide rod 250, and the sliding ring and the guide rod 250 are slidably connected to avoid direct contact and friction between the float 210 and the guide rod 250, which can significantly reduce the wear of the float 210 and extend the service life of the float 210. At the same time, by setting the sliding ring and the guide rod 250, a clear guide path can be provided for the vertical movement of the float 210, which limits the movement of the float 210 in an unexpected direction, and helps to reduce the shaking and deviation of the float 210 that may be caused by the action of waves, thereby improving the stability of the movement. At the same time, the guide rod 250 can also provide support for the support plate 102 to ensure the stability of the support plate 102 .

[0085] In some embodiments of the present invention, the wave energy recovery device 2 further comprises a battery 6 electrically connected to the generator 230 , and the battery 6 is used to store the electric energy output by the generator 230 , so as to periodically recover the electric energy stored in the battery 6 .

[0086] In one embodiment, the battery 6 is electrically connected to the second fixing part 41. Exemplarily, a plurality of transmission mechanisms are provided, so one transmission mechanism is correspondingly connected to at least one gearbox 240 and a generator 230, and multiple generators 230 can be connected to multiple batteries 6, or can be connected to one battery 6 together. The battery 6 is used as an energy storage element, and the electric energy generated by the generator 230 under the action of wave energy can be stored through the battery 6, and the electric energy generated by the generator 230 can be stored in the battery 6. The battery 6 is electrically connected to the second fixing part 41, and when the energy device arrives at the target sea area, the energy stored in the battery 6 is transmitted to the energy device through the second fixing part 41.

[0087] In some embodiments of the present invention, a first connecting line is provided in the anchor chain 4, one end of the first connecting line is connected to the second fixing part 41, and the other end of the first connecting line is electrically connected to the battery 6 through the second connecting line. In this way, the electric energy in the battery 6 can be stably transmitted to the second fixing part 41 through the first connecting line and the second connecting line, and then transmitted to the energy device through the second fixing part 41, thereby improving the energy utilization efficiency.

[0088] The first connecting line can be wound around the anchor chain 4 in a braided manner, for example. In other embodiments, the anchor chain 4 can also be designed to realize the circuit transmission function by the structure of the anchor chain 4. For example, the anchor chain 4 includes a plurality of first links 800 that are mutually sleeved, the first link 800 includes a first conductive annular body 810, the first conductive annular body 810 includes two first straight segments 811 that are arranged opposite to each other and two first arc segments 812 that respectively connect the two ends of the two first straight segments 811, the first link 800 also includes a first insulating layer 820 coated on the first conductive annular body 810, the first insulating layer 820 covers the radial outer surface of each first arc segment 812, and the first insulating layer 820 exposes a part of the radial inner surface of each first arc segment 812, so that the first conductive annular bodies 810 of two adjacent first links 800 can maintain contact for power transmission.

[0089] In order to ensure the structural strength of the anchor chain 4, the first conductive annular body 810 is made of steel. Since the conductivity of steel is poor, it will cause a large loss of electric energy during transmission. In order to solve this problem, a conductive copper inner core is further arranged in the first conductive annular body 810, and an arc-shaped copper bar is arranged on the radial inner side of the first conductive ring body. The arc-shaped copper bar is embedded in the radial inner side of the first conductive ring body and is electrically connected to the conductive copper inner core. For example, it can be a direct contact connection or a connection through a conductive column. In this way, while ensuring the structural strength of the anchor chain 4, the conductivity of the anchor chain 4 is improved to avoid excessive loss of electric energy during transmission through the anchor chain 4.

[0090] Furthermore, the first link 800 further includes a limiting bar 830 connecting the two first straight segments 811, and each limiting bar 830 is used to limit the position of the first arc segment 812 of another first link 800, so that the other first arc segment 812 moves in the space formed between the limiting bar 830 and the first arc segment 812, thereby ensuring the conductive contact of the first conductive ring bodies 810 of the two adjacent first links 800. The limiting bar 830 can be an integral structure with the first insulating layer 820, or an integral structure with the first conductive ring body 810. In the embodiment where the limiting bar 830 and the first conductive ring body are an integral structure, the first insulating layer 820 also covers the surface of the limiting bar 830 to protect the limiting bar 830.

[0091] In some embodiments of the present invention, the first fixing portion 3 includes a first tooth-shaped structure, the second fixing portion 41 includes a second tooth-shaped structure, and the first tooth-shaped structure and the second tooth-shaped structure are meshed. The first fixing portion 3 is set as the first tooth-shaped structure, and the second fixing portion 41 is set as the second tooth-shaped structure meshed with the first tooth-shaped structure, so that the two are meshed more tightly, and the mutual meshing of the tooth-shaped structures can form a stable mechanical connection, effectively preventing the falling off caused by sliding friction, vibration or external impact, etc., ensuring the stability and reliability of the connection, and improving the safety of the entire system.

[0092] In some embodiments of the present invention, the second tooth-shaped structure is also used to mesh with the third tooth-shaped structure on the device to be anchored, the device to be anchored is, for example, the offshore wind power device 200 in the aforementioned embodiment, the third tooth-shaped structure on the device to be anchored is, for example, the first fixing portion 300 on the offshore wind power device 200 in the aforementioned embodiment, the second tooth-shaped structure includes a meshing surface meshing with the third tooth-shaped structure, the meshing surface is a conductive layer, and the first connecting line is electrically connected to the conductive layer. It should be noted that the device to be anchored includes the energy device mentioned above. Exemplarily, a third tooth-shaped structure is provided on the device to be anchored, wherein a meshing surface meshing with the second tooth-shaped structure is also provided on the third tooth-shaped structure, and the meshing surface is a conductive layer. In this way, through the conductive layer of the second tooth-shaped structure, the electric energy stored in the battery 6 can be directly and efficiently transmitted to the device to be anchored (such as the energy device), reducing the loss of electricity during the transmission process and improving the energy utilization efficiency. At the same time, the second tooth-shaped structure meshes with the third tooth-shaped structure, which increases the contact area and improves the transmission efficiency. At the same time, it can effectively prevent falling off due to sliding friction, vibration or external impact, ensure the stability and reliability of the connection, and improve the safety of the entire system.

[0093] In one embodiment, the anchor chain includes a second link 900 located at an end. Similar to the structure of the first link 800, the second link 900 includes a second conductive annular body 910. The second conductive annular body 910 includes two second straight segments 911 arranged opposite to each other and two second arc segments 912 respectively connecting two ends of the two second straight segments 911. The second link 900 also includes a second insulating layer 920 coated on the second conductive annular body 910. The second insulating layer 920 covers the radial outer surface of each second arc segment 912. The second insulating layer 920 exposes a portion of the radial inner surface of each second arc segment 912 so as to contact the first conductive annular body 810 of the adjacent first link 800.

[0094] In order to ensure the structural strength of the anchor chain 4, the second conductive annular body 910 is made of steel. Since the conductivity of steel is poor, it will cause a large loss of electric energy during transmission. In order to solve this problem, a conductive copper inner core is further arranged in the second conductive annular body 910, and an arc-shaped copper bar is arranged on the radial inner side of the second conductive ring body. The arc-shaped copper bar is embedded in the radial inner side of the second conductive ring body and is electrically connected to the conductive copper inner core. For example, it can be a direct contact connection or a connection through a conductive column. In this way, while ensuring the structural strength of the anchor chain 4, the conductivity of the anchor chain 4 is improved to avoid excessive loss of electric energy during transmission through the anchor chain 4.

[0095] The second conductive annular body 910 also includes a conductive block 913 connected to the second arc segment 912, and a tooth-shaped structure 914 is provided on one side of the conductive block 913. The second insulating layer 920 covers the outer surface of the conductive block 913 and exposes the inner surface of the tooth-shaped structure 914 to form a conductive layer. The conductive block 913 and the tooth-shaped structure 914 constitute a second fixed portion 41.

[0096] In the embodiment where a conductive copper core is disposed in the second conductive annular body 910 , the conductive copper core may extend into the conductive block 913 and to the inner surface exposed at the toothed structure 914 to improve the transmission performance of electrical energy.

[0097] By providing the first tooth-shaped structure, the second tooth-shaped structure and the third tooth-shaped structure, the versatility of the anchor chain 4, the floating structure body 1 and the energy device is improved, and the application scope of the wave energy recovery device provided in this embodiment is improved.

[0098] In some embodiments of the present invention, a first fixing hole is provided on the first fixing portion 3, a second fixing hole 410 is provided on the second fixing portion 41, and the first fixing hole and the second fixing hole 410 are fixed by a first fastener; a third fixing hole is provided on the third toothed structure, and the third fixing hole and the second fixing hole 410 are fixed by a second fastener. Exemplarily, the first fixing hole, the second fixing hole 410 and the third fixing hole can all be threaded holes, and the first fastener and the second fastener can be bolts. The first fixing hole and the second fixing hole 410 are fixed by the first fastener, which provides basic stability for the connection between the first fixing portion 3 and the second fixing portion 41. The further fixing of the third fixing hole and the second fixing hole 410 by the second fastener enhances the stability of the entire connection structure and prevents loosening or falling off due to factors such as vibration and impact. At the same time, according to the load or vibration impact that is actually required to be borne, the number of fasteners can be increased or fasteners with higher strength can be used to ensure the stability of the connection.

[0099] The contents described above may be implemented individually or in combination in various ways, and these variations are all within the protection scope of the present invention.

[0100] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anchoring system with adjustable anchor chain length, used for anchoring an offshore wind power device, characterized in that: The anchoring system with adjustable anchor chain length comprises: A floating plate, the floating plate can float on the sea surface, and the upper surface of the floating plate is used to install an offshore wind power device; An anchor chain retracting portion, the anchor chain retracting portion is disposed on the lower surface of the floating plate and is rotatably connected to the floating plate; A first fixing portion, arranged at the anchor chain contraction portion; An anchor chain, wherein the first end of the anchor chain is provided with an anchoring structure, the anchoring structure is used to be fixed to the seabed, the second end of the anchor chain is provided with a second fixing part, the second fixing part can be detachably connected to the first fixing part, the anchor chain is wound around the anchor chain contraction part, and the length of the anchor chain is adjusted by rotating the anchor chain contraction part; The anchor chain contraction part comprises a rotating shaft and a plurality of anchor chain fixings, wherein the plurality of anchor chain fixings are sequentially sleeved outside the rotating shaft along the length direction of the rotating shaft, each of the anchor chain fixings is provided with one of the first fixing parts, and each of the anchor chain fixings is wound with one of the anchor chains; The anchor chain contraction portion is also provided with an adjustment structure; The rotating shaft is provided with a plurality of groups of center holes, which are arranged along the length direction of the rotating shaft, and the position of one group of the center holes in the length direction of the rotating shaft corresponds to the position of one anchor chain fixing member, and each group of the center holes includes a plurality of first center holes, which are evenly arranged along the circumferential direction of the rotating shaft; The inner surface of each anchor chain fixing member is provided with a plurality of slots, and the plurality of slots are arranged along the circumferential direction of the anchor chain fixing member; The adjustment structure comprises a central column and a clamping block arranged on a side of the central column, wherein the central column is installed in the rotating shaft, and the clamping block can be clamped with one of the first central holes and one of the clamping slots to drive the corresponding anchor chain fixing member to rotate; The first fixing portion includes a first tooth-shaped structure, the second fixing portion includes a second tooth-shaped structure, and the first tooth-shaped structure and the second tooth-shaped structure are meshed; The anchor chain comprises a plurality of first links which are sleeved with each other, wherein the first links comprise a first conductive annular body, wherein the first conductive annular body comprises two first straight segments which are arranged opposite to each other and two first arc segments which respectively connect two ends of the two first straight segments, and the first links further comprise a first insulating layer which is coated on the first conductive annular body, wherein the first insulating layer covers the radial outer surface of each of the first arc segments, and the first insulating layer exposes a part of the radial inner surface of each of the first arc segments; A conductive copper inner core is arranged in the first conductive annular body, and an arc-shaped copper bar is arranged on the radial inner side of the first conductive annular body. The arc-shaped copper bar is embedded in the radial inner side of the first conductive annular body and is electrically connected to the conductive copper inner core.

2. The anchoring system with adjustable anchor chain length according to claim 1, characterized in that: The outer surface of the rotating shaft is provided with a mounting groove, and the mounting groove is used to accommodate the anchor chain.

3. The anchoring system with adjustable anchor chain length according to claim 2, characterized in that: The installation groove is a spiral installation groove, and the rotation directions of the spiral installation grooves on two adjacent anchor chain fixings are opposite; The projection of the first fixing portion on each of the anchor chain fixing members on the horizontal plane is evenly spaced from the first fixing portions along the circumference of the circle where the projection of the anchor chain fixing member on the horizontal plane is located.

4. The anchoring system with adjustable anchor chain length according to claim 2, characterized in that: The installation groove is arranged on the outer side of the anchor chain fixing member, a baffle is arranged at the notch of the installation groove, and the first fixing part is installed at the bottom of the installation groove; The projection of the first fixing portion on each of the anchor chain fixing members on the horizontal plane is evenly spaced from the first fixing portions along the circumference of the circle where the projection of the anchor chain fixing member on the horizontal plane is located.

5. The anchoring system with adjustable anchor chain length according to any one of claims 1 to 4, characterized in that: The anchoring system with adjustable anchor chain length comprises: The depth detection device is arranged in one-to-one correspondence with the anchor chain and is used to detect the seawater depth at the corresponding position of the anchor chain.

6. The anchoring system with adjustable anchor chain length according to claim 5, characterized in that: The anchoring system with adjustable anchor chain length also includes: A driving and adjusting device, used for driving the anchor chain retracting portion to rotate; The control device is used to receive the detection signal of the depth detection device, and control the driving and adjusting device according to the detection signal to adjust the corresponding anchor chain.

7. A method for adjusting the length of an anchor chain, characterized in that: The anchoring system with adjustable anchor chain length according to any one of claims 1 to 6 is adopted, and the anchor chain length adjustment method comprises: Acquire the seawater depth information where the anchor chain is located; Determining the rotation angle of the anchor chain contraction portion corresponding to the anchor chain according to the seawater depth information; The anchor chain retracting portion is controlled to rotate at the rotation angle to adjust the length of the anchor chain.

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