Universal semi-submersible platform modularized overwater folding device and method

Abstract

The invention relates to a universal semi-submersible platform modular water closure device and method. The universal semi-submersible platform modularized overwater folding device comprises a transportation carrier, a carrying state adjusting mechanism and a traction mechanism. The transportation carrier is used for bearing a first module and a second module to be folded. The carrying state adjusting mechanism is arranged on the transportation carrier and used for adjusting the carrying state of the transportation carrier, the first module is supported by the transportation carrier, and the second module is in a floating critical state; the traction mechanism is arranged on one of the first module and the second module and used for connecting and pulling the other one of the first module and the second module and driving the second module to be in butt joint with the first module. Through the carrying state adjusting mechanism, differential floating state accurate control over the two modules is achieved, the traction mechanism is arranged on the stabilized first module, the second module is connected and pulled, finally accurate butt joint is completed, and the problem that directional alignment of irregular modules is difficult is solved.

Description

Technical Field

[0001] This application relates to the field of underwater platform construction technology, and in particular to a modular underwater assembly device and method for general-purpose semi-submersible platforms. Background Technology

[0002] As offshore wind power development moves towards deeper waters, floating wind power platforms have become one of the key technologies. Semi-submersible platforms are favored due to their good stability and wide adaptability to various water depths. To reduce manufacturing costs, shorten construction cycles, and reduce reliance on large dry docks and heavy lifting equipment, modular construction and on-water assembly processes are gradually being applied.

[0003] Existing cases of on-water assembly mainly target ships or marine structures with regular shapes and dynamic ballast systems. They rely on their own ballast adjustment capabilities or gantry crane assistance to complete the precise docking of modules in open water or harbor basins. However, for the four-post semi-submersible platforms commonly used in floating wind power, their structures are usually irregular and often lack ballast systems, making it difficult to directly apply existing on-water assembly techniques. Summary of the Invention

[0004] Based on this, a general-purpose modular floating assembly device and method for semi-submersible platforms is provided to solve the problem of difficult precise docking of irregular floating modules without ballast systems when assembling them on the water.

[0005] An embodiment of the first aspect of this application proposes a modular surface assembly device for a general-purpose semi-submersible platform, comprising:

[0006] The transport vehicle is used to carry the first and second modules to be assembled.

[0007] A load-conditioning mechanism is disposed on the transport vehicle to adjust the load-conditioning of the transport vehicle. The first module is supported by the transport vehicle and the second module is in a critical floating state.

[0008] A traction mechanism is provided on one of the first module and the second module, for connecting and traction between the first module and the other of the second module, driving the second module to dock with the first module.

[0009] In one embodiment, the modular surface assembly device for the universal semi-submersible platform further includes:

[0010] A guiding mechanism is provided in the docking area between the first module and the second module, and is used to guide the docking between the first module and the second module.

[0011] In one embodiment, the traction mechanism includes:

[0012] A winch, which is mounted on the first module;

[0013] A traction sling, which is led out by the winch and connected to the second module.

[0014] In one embodiment, two winches are provided, each winch leading out at least one of the traction cables, and the multiple traction cables are crossed and connected to the second module respectively to provide traction force to the second module in at least two directions.

[0015] In one embodiment, the transport vehicle includes a semi-submersible barge or a semi-submersible transport vessel; the load adjustment mechanism includes the ballast water system of the semi-submersible barge or semi-submersible transport vessel.

[0016] And / or, the modular water-based assembly device for the universal semi-submersible platform further includes a temporary support mechanism, which is detachably mounted on the first module and / or the second module to enhance the rigidity of the first module and / or the second module;

[0017] And / or, the modular floating assembly device for the universal semi-submersible platform further includes a pontoon mechanism, which is detachably installed on the bottom and / or side of the second module to assist the second module in maintaining stable floating.

[0018] An embodiment of the second aspect of this application proposes a modular surface assembly method for a general-purpose semi-submersible platform, comprising:

[0019] Provide a modular water-based assembly device for a general-purpose semi-submersible platform as described in any of the above embodiments;

[0020] The load state of the transport carrier carrying the first module and the second module is adjusted by the load state adjustment mechanism so that the first module is supported by the transport carrier and the second module is in a floating critical state.

[0021] The second module is driven to move toward and dock with the first module via a traction mechanism;

[0022] The load-bearing state of the transport vehicle is adjusted by the load-bearing state adjustment mechanism so that the first module and the second module after docking are supported on the transport vehicle.

[0023] In one embodiment, adjusting the load state of the transport carrier carrying the first module and the second module through the load state adjustment mechanism, so that the first module is supported by the transport carrier and the second module is in a critical floating state, includes:

[0024] The draft of the transport vehicle is adjusted by the load-conditioning mechanism so that the weight of the first module is greater than its buoyancy at that draft, while the weight and buoyancy of the second module are in equilibrium.

[0025] In one embodiment, driving the second module to move toward and dock with the first module via the traction module includes:

[0026] When the second module approaches the docking interface of the first module, the position of the second module is guided by a guide mechanism set in the docking area.

[0027] In one embodiment, before the transport vehicle carries the first module and the second module, and / or before the second module is driven to move toward and dock with the first module by a traction mechanism, the following is included:

[0028] The temporary support mechanism is detachably installed on the first module and / or the second module to enhance the rigidity of the first module and / or the second module.

[0029] In one embodiment, before the transport vehicle carries the first module and the second module, and / or before the second module is driven to move toward and dock with the first module by a traction mechanism, the following is included:

[0030] The buoy mechanism is detachably installed on the bottom and / or side of the second module to assist the second module in maintaining stable floating.

[0031] According to the general-purpose semi-submersible platform modular waterborne docking device and method of this application, the transport carrier provides sufficient and stable carrying space, which can simultaneously accommodate the first module and the second module. Through a load-conditioning mechanism, precise control of the differentiated floating states of the two modules is achieved. On the one hand, the weight of the first module is made greater than the buoyancy at the corresponding draft depth, so that it is stably supported by the transport carrier and becomes the fixed reference end for docking. On the other hand, the second module is placed in a floating critical state of balance between gravity and buoyancy, which avoids it sinking to the bottom or excessive floating, and also eliminates its dependence on its own ballast system, creating controllable conditions for subsequent towing and docking. Irregular modules are prone to displacement and rotation during docking due to uneven force, which is difficult to control precisely using traditional drive methods. By setting the towing mechanism on the stabilized first module, connecting and towing the second module, and using the logic of towing the moving module with the fixed reference end, a directional driving force is formed, preventing disorderly movement of the second module during docking. At the same time, through the concentrated transmission of the towing force, it is ensured that the two modules gradually approach each other along a preset direction, ultimately completing precise docking and solving the problem of difficult orientation and alignment of irregular modules. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a transport carrier carrying the first and second modules in a modular waterborne assembly device for a general semi-submersible platform according to an embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the structure of a modular water-based assembly device for a general-purpose semi-submersible platform according to an embodiment of this application.

[0034] Figure 3 This is a schematic diagram of the connection between a modular water-based assembly device for a general-purpose semi-submersible platform and a second module, according to an embodiment of this application.

[0035] Figure 4 This is a top view of the connection between the pontoon mechanism and the second module in a modular water-based assembly device for a general-purpose semi-submersible platform according to an embodiment of this application.

[0036] Figure 5 This is a schematic diagram of the pontoon mechanism in a modular waterborne closure device for a general-purpose semi-submersible platform according to an embodiment of this application.

[0037] Figure 6 This is a schematic diagram of the buoyancy adjustment mechanism in the pontoon mechanism of a modular water-based assembly device for a general-purpose semi-submersible platform according to an embodiment of this application.

[0038] Figure 7 for Figure 6 Sectional view at point AA.

[0039] Figure 8 for Figure 6 Sectional view at point BB.

[0040] Figure 9 This is a structural diagram showing the fixing component in the pontoon mechanism of a general-purpose semi-submersible platform modular water closure device according to an embodiment of this application.

[0041] Figure 10 This is a partial structural schematic diagram of a modular water-based assembly device for a general-purpose semi-submersible platform according to an embodiment of this application.

[0042] Figure 11 for Figure 10 A magnified view of a portion of point A in the middle.

[0043] Figure 12 This is a schematic diagram of the modular water-based closure device for a general-purpose semi-submersible platform according to an embodiment of this application during closure.

[0044] Figure 13 This is a flowchart of a modular water-based assembly method for a general semi-submersible platform according to an embodiment of this application.

[0045] Figure label:

[0046] 100. Module One;

[0047] 200. Module Two;

[0048] 300. Transport vehicle;

[0049] 400. Traction mechanism; 410. Winch; 420. Traction rigging;

[0050] 500. Guiding mechanism; 510. First guiding assembly; 511. First guide groove; 512. First guide block; 520. Second guiding assembly; 521. Second guide groove; 522. Second guide block;

[0051] 600. Temporary support facilities;

[0052] 700. Floating box mechanism;

[0053] 710. Load-bearing frame; 701. Placement cavity; 711. Rod; 712. Splicing connector; 7121. Splicing flange; 7122. Splicing bolt;

[0054] 720. Buoyancy mechanism; 721. Inflatable airbag; 722. Inflation port;

[0055] 730. Buoyancy adjustment mechanism; 731. Air source; 732. Piping; 7321. Valves; 733. Control module;

[0056] 740. Detachable connection mechanism; 741. Detachable flange; 742. Detachable bolts;

[0057] 750. Fasteners. Detailed Implementation

[0058] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0059] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0060] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0064] See Figure 1 and Figure 2 At least one embodiment of this application proposes a modular floating assembly device for a universal semi-submersible platform. The modular floating assembly device for a universal semi-submersible platform includes a transport carrier 300, a load adjustment mechanism, and a traction mechanism 400. The transport carrier 300 is used to carry the first module 100 and the second module 200 to be assembled. The load adjustment mechanism is disposed on the transport carrier 300 and is used to adjust the load state of the transport carrier 300. The first module 100 is supported by the transport carrier 300 and the second module 200 is in a floating critical state. The traction mechanism 400 is disposed on one of the first module 100 and the second module 200 and is used to connect and traction the other of the first module 100 and the second module 200, driving the second module 200 to dock with the first module 100.

[0065] According to the general-purpose semi-submersible platform modular water-based docking device of this application embodiment, the transport carrier 300 provides sufficient and stable carrying space, which can simultaneously accommodate the first module 100 and the second module 200. Through the load-conditioning adjustment mechanism, precise control of the differentiated floating states of the two modules is achieved. On the one hand, the gravity of the first module 100 is greater than the buoyancy at the corresponding draft depth, so that it is stably supported by the transport carrier 300 and becomes the fixed reference end for docking. On the other hand, the second module 200 is kept in a floating critical state of balance between gravity and buoyancy, which not only avoids it sinking to the bottom or floating excessively, but also eliminates its dependence on its own ballast system, creating controllable conditions for subsequent towing and docking. Irregular modules are prone to shifting or rotating during docking due to uneven force distribution, which is difficult to control precisely using traditional driving methods. By setting the traction mechanism 400 on the stabilized first module 100, connecting and tractioning the second module 200, and using the logic of traction of the moving module by the fixed reference end, a directional driving force is formed, which avoids disorderly movement of the second module 200 during docking. At the same time, through the concentrated transmission of the traction force, it is ensured that the two modules gradually approach each other along the preset direction, and finally complete the precise docking, thus solving the problem of the difficulty in orienting and aligning irregular modules.

[0066] In some embodiments, the modular water-based assembly device for general-purpose semi-submersible platforms is applicable to the assembly work of a four-column floating wind turbine semi-submersible platform, which divides the four-column floating wind turbine semi-submersible platform into a first module 100 and a second module 200; wherein, the first module 100 is a large module, including three columns, which can maintain a balanced state in the water by adjusting its own ballast water, for unloading and wet towing, or supported by the transport carrier 300; the second module 200 is a small module and is also an irregular module.

[0067] See Figure 3 , Figure 4 and Figure 5 In some embodiments, the modular floating assembly device for the universal semi-submersible platform further includes a pontoon mechanism 700, which is detachably mounted on the bottom and / or side of the second module 200 to assist the second module 200 in maintaining stable floating. Specifically, the irregular second module 200 of the four-post floating wind power semi-submersible platform is equipped with the pontoon mechanism 700 to keep it floating horizontally during transportation and assembly.

[0068] In some embodiments, the floatation mechanism 700 includes a support frame 710, a buoyancy mechanism 720, and a buoyancy adjustment mechanism 730. The support frame 710 is used to connect to the second module 200; the buoyancy mechanism 720 is used to provide additional buoyancy and is disposed on the support frame 710; the buoyancy adjustment mechanism 730 is connected to the buoyancy mechanism 720 and is used to adjust the additional buoyancy of the buoyancy mechanism 720 so that the second module 200 remains horizontally floating.

[0069] Through the above setup, the support frame 710 is firmly connected to the target second module 200 on one hand, and supports and fixes the buoyancy mechanism 720 on the other, providing an installation foundation for the entire device. The buoyancy mechanism 720 is mounted on the support frame 710 and, through its own buoyancy, provides additional upward lifting force to the second module 200, counteracting the sinking or tilting tendency caused by the module's irregular shape and center of gravity shift. The buoyancy adjustment mechanism 730 can actively adjust the magnitude of the additional buoyancy generated by the buoyancy mechanism 720, dynamically adjusting to counteract the center of gravity shift of the second module 200, ultimately allowing the module to maintain stable horizontal floating. Leveling the second module 200 does not rely on its own ballast system or external lifting equipment; horizontal floating can be achieved solely through the float box mechanism 700, reducing reliance on large equipment and special facilities, reducing operating costs, and solving the problem that irregular second modules 200 cannot maintain horizontal floating independently.

[0070] In some embodiments, the support frame 710 is detachably connected to the second module 200, flexibly adapting to different scenarios and the second module 200. Specifically, the float mechanism 700 also includes a detachable connection mechanism 740, which includes a detachable flange 741 and a detachable bolt 742. The detachable flange 741 is pre-installed on the second module 200 and the support frame 710, respectively, and the detachable bolt 742 connects the detachable flange 741. When it is necessary to provide balancing buoyancy to a certain second module 200, the support frame 710 can be connected to that module; after the module completes horizontal floating, transfer, or closure, the support frame 710 can be disassembled and reused for other modules, improving equipment utilization.

[0071] See Figure 2 In some embodiments, the modular floating assembly device for a general-purpose semi-submersible platform further includes a temporary support mechanism 600, which is detachably mounted on the first module 100 and / or the second module 200 to enhance the rigidity of the first module 100 and / or the second module 200. Specifically, the irregular second module 200 of the four-column floating wind power semi-submersible platform is equipped with a temporary support mechanism 600 to maintain structural stability during transportation and assembly.

[0072] See Figure 4 and Figure 5 In some embodiments, the buoyancy mechanism 720 includes a plurality of inflatable airbags 721; the buoyancy adjustment mechanism 730 adjusts the additional buoyancy by inflating or deflating gas in the inflatable airbags 721. Specifically, the inflatable airbags 721 are provided with inflation ports 722, through which gas is inflated and deflated.

[0073] In some embodiments, the buoyancy adjustment mechanism 730 includes an air source 731, a pipeline 732, and a control module 733. The pipeline 732 connects the air source 731 to the inflatable airbag 721. A valve 7321 is installed on the pipeline 732. The control module 733 is communicatively connected to the valve 7321 and adjusts the additional buoyancy by controlling the valve 7321. Specifically, the air source 731 can be configured as an air compressor. When the second module 200 tilts, the control module 733 receives a tilt signal, which may be a command input after manual observation or automatic detection by a sensor. The control module 733 sends a command to the valve 7321 of the corresponding pipeline 732 according to the tilt condition. When the module is adjusted to a horizontal state, the control module 733 sends a closing command to the valve 7321, the gas stops flowing in and out, the buoyancy of the inflatable airbag 721 remains stable, and the second module 200 remains horizontal. The buoyancy adjustment mechanism 730 enables precise adjustment of buoyancy, which can quickly counteract the shift of the module's center of gravity, allowing the module to reach and maintain a horizontal state with high leveling accuracy and fast response speed.

[0074] See Figure 6 , Figure 7 and Figure 8 In some embodiments, the supporting frame 710 is configured as a truss structure, which includes a plurality of members 711 and a plurality of splicing connectors 712. The splicing connectors 712 are used to detachably connect two members 711. The plurality of members 711 and the plurality of splicing connectors 712 enclose a plurality of placement cavities 701, which are used to place the buoyancy mechanism 720. The float mechanism 700 adopts a detachable splicing truss structure, and the specifications of the members 711 and the size of the inflatable airbags 721 can be flexibly adjusted to adapt to irregular second modules 200 of different sizes and shapes.

[0075] In some embodiments, the pipe fittings may be selected as steel pipes. In addition to steel pipes, the rods 711 may also be made of lightweight and high-strength materials such as aluminum alloy pipes and fiberglass reinforced plastic pipes, which are suitable for scenarios with strict requirements on the self-weight of the pontoon. In addition to disassembling the flanges 741 and the bolts 742, the splicing connectors 712 may also adopt quick snaps, pin connections and other methods to improve the splicing efficiency of the load-bearing frame 710, which are suitable for emergency operations or frequent disassembly and assembly scenarios.

[0076] In some embodiments, the splicing connector 712 includes a plurality of splicing flanges 7121 and splicing bolts 7122. The splicing flanges 7121 are disposed on the rods 711, and the splicing bolts 7122 connect the splicing flanges 7121. Specifically, before production or assembly, the splicing flanges 7121 are first fixed to the ends of each rod 711. When it is necessary to connect two rods 711, the flange faces of the first rod 711 and the flange faces of the second rod 711 are precisely fitted together to ensure that the holes on the two flanges are completely aligned and the splicing bolts 7122 can pass through smoothly. The splicing bolts 7122 are passed through the two aligned flange holes, and then the nuts are tightened at the other end of the splicing bolts 7122. Through the tightening force of the splicing bolts 7122, the two splicing flanges 7121 are pressed tightly together, and finally a stable connection of the two rods 711 is achieved. When it is necessary to adjust the size of the load-bearing frame 710 or disassemble the frame, simply unscrew the bolts to separate the two rods 711. Both the splicing flange 7121 and the rods 711 can be reused to adapt to different scenarios.

[0077] See Figure 9 In some embodiments, the float mechanism 700 further includes a fixing member 750, through which the buoyancy mechanism 720 is fixed to the support frame 710; the fixing member 750 includes straps. The robust connection between the support frame 710 and the second module 200 and the stable fixation of the inflatable airbag 721 ensure the stability of the module during buoyancy and transfer, providing a guarantee for precise closure.

[0078] In some embodiments, multiple straps are provided, and the multiple straps are cross-shaped and fixed to the support frame 710. Specifically, a set of straps is first wrapped laterally along the support frame 710, spanning the inflatable airbag 721 and the frame rod 711; then another set of straps is wrapped longitudinally, forming an intersection with the first set of straps, ultimately forming a cross-shaped constraint structure within the placement cavity 701. The intersection point must be aligned with the central area of ​​the inflatable airbag 721 to ensure that the constraint force of the straps is evenly applied to the surface of the inflatable airbag 721, avoiding excessive local stress that could cause deformation of the inflatable airbag 721; both ends of the straps must be firmly fixed to the rod 711 of the support frame 710, and the tightness of the straps can be adjusted by means of buckles, bolts, etc., so that the inflatable airbag 721 fits tightly against the inner wall of the placement cavity 701 without any loose gaps. Furthermore, if the inflatable airbag 721 is large in size, multiple sets of straps can be added to the cross-shaped structure, such as in a star shape, to further enhance the fixation strength and cope with extreme situations such as strong water flow and module tilting.

[0079] Compared to single-direction strap fixation, the cross-shaped layout creates three-dimensional constraints in both the horizontal and vertical dimensions. This prevents the inflatable airbag 721 from sliding along the frame members 711 under water flow impact, and also prevents the inflatable airbag 721 from shifting vertically due to changes in buoyancy or module tilt. This ensures that the buoyancy mechanism 720 remains in the preset placement cavity 701, guaranteeing precise buoyancy application. The cross-shaped straps evenly distribute the weight, buoyancy, and water flow impact force of the inflatable airbag 721 across multiple members 711 of the supporting frame 710, preventing concentrated tension on certain straps that could damage the inflatable airbag 721. It also reduces the load on individual straps, improving the overall durability of the fixing structure.

[0080] The floating box mechanism 700 provided in this application selects pipe fittings of corresponding specifications according to the size, shape and center of gravity of the irregular module. The pipe fittings are spliced ​​on site to form a load-bearing frame through splicing connectors 712. The load-bearing frame 710 is fixedly connected to the second module 200. The inflatable airbag 721 is installed inside the load-bearing frame through fasteners 750 and connected to the buoyancy adjustment mechanism 730. The buoyancy adjustment mechanism 730 inflates the inflatable airbag 721. According to the horizontal state of the second module 200, the amount of gas in the inflatable airbag 721 is adjusted. The buoyancy generated by the inflatable airbag 721 is used to counteract the center of gravity shift of the module, so that the second module 200 gradually reaches a horizontal floating state. If the second module 200 tilts, the buoyancy distribution is adjusted by inflating or deflating the corresponding side inflatable airbag 721 to maintain the second module 200 horizontal.

[0081] With the above configuration, the second module 200, due to its irregular shape and high center of gravity, can maintain a balanced state after the auxiliary buoyancy of the pontoon mechanism 700 is added. This allows for unloading and wet towing, followed by transfer to the transport carrier 300, or for it to be in a critical floating state during assembly. Through this configuration, the modular transportation of the four-column floating semi-submersible wind power platform, and its water-based assembly scheme, can save significant shipping costs.

[0082] See Figure 10 and Figure 11 In some embodiments, the modular water-based docking device for a general-purpose semi-submersible platform also includes a guide mechanism 500, which is disposed in the docking area between the first module 100 and the second module 200 and is used to guide the docking between the first module 100 and the second module 200.

[0083] In some embodiments, the guide mechanism 500 includes a first guide component 510 and a second guide component 520. The first guide component 510 includes a first guide groove 511 and a first guide block 512 mounted on the top of the first module 100 and the second module 200. The first guide groove 511 is provided with an inclined slot facing the first guide block 512, for the first guide block 512 to be inserted when the first module 100 and the second module 200 are docked.

[0084] The second guide assembly 520 includes a second guide groove 521 and a second guide block 522 installed on the side of the first module 100 and the second module 200. The second guide groove 521 is provided with an inclined slot facing the second guide block 522, so that the second guide block 522 can be inserted when the first module 100 and the second module 200 are docked.

[0085] The 500 guiding mechanism, through the design of dual-dimensional guiding components on the top and sides, is particularly designed for the water assembly scenario of a four-column floating semi-submersible wind power platform, achieving core technical effects such as precise docking guidance, deviation self-correction, and structural protection.

[0086] Specifically, the first guide groove 511 cooperates with the first guide block 512 to correct vertical deviations in module docking, preventing the second module 200 from becoming misaligned due to floating fluctuations or center of gravity shifts, ensuring precise vertical alignment of the docking surfaces. The second guide groove 521 cooperates with the second guide block 522 to correct lateral deviations in module docking, preventing horizontal displacement of the second module 200 during traction due to water flow impacts or uneven force, ensuring horizontal alignment of the docking surfaces. The combined guiding effect of the first guide component 510 and the second guide component 520 controls docking deviations to a minimum, solving the problem of precise alignment of irregular modules and providing a precise benchmark for subsequent splicing and fixing.

[0087] Both the first guide groove 511 and the second guide groove 521 are provided with inclined slots facing the guide block. The inclined slots form a gradually changing structure with a wide entrance and a narrow interior. Even if there is a small initial deviation between the first module 100 and the second module 200, such as lateral offset or top height difference, the guide block can smoothly enter the groove through the guidance of the inclined slot without the need for high-precision pre-alignment, thus reducing the control difficulty of the traction operation. During the docking process, when the guide block slides along the slope of the inclined slot, it generates a lateral constraint force towards the center of the slot, automatically correcting the offset or tilting posture of the module. If the second module 200 has a slight lateral offset, the contact force between the side guide block and the inclined slot will form a corrective torque, pushing the module back to the preset docking path, achieving a dynamic adjustment effect of docking and correction simultaneously.

[0088] The assembly process on water is susceptible to interference from environmental factors such as water flow and waves, and the module's posture is prone to dynamic changes. Through the above-mentioned design, the mechanical structure of the guide mechanism 500 has strong anti-interference capabilities and is not affected by water flow fluctuations or slight changes in floating status, thus providing stable guidance constraints at all times. The design of the inclined slot has a buffering and adaptability to environmental interference. Even if the module sways slightly due to wind and waves, the guide block can still maintain the docking trend through the guidance of the slot slope, avoiding docking interruption or increased deviation due to environmental interference, and ensuring that the assembly operation can proceed smoothly in complex water environments.

[0089] In some embodiments, the connection between the guide mechanism 500 and the corresponding module is adapted to a detachable design, and can be easily disassembled after being closed, without affecting the subsequent use of the platform, which meets the requirements of flexible adaptation and reuse of modular devices.

[0090] See Figure 10 and Figure 12 In some embodiments, the traction mechanism 400 includes a winch 410 and a traction sling 420. The winch 410 is mounted on the first module 100, and the traction sling 420 is extended from the winch 410 and connected to the second module 200. The power output component of the winch 410 is mounted on the first module 100, which is stably supported by the transport carrier 300, making the first module 100 a fixed reference end for traction operations. The second module 200 is connected to the winch 410 via the traction sling 420, serving as a movable traction end. The stable posture of the first module 100 provides reliable support for traction, avoiding traction deviation caused by swaying of the drive end. One end of the traction sling 420 is rigidly connected to the winch 410, and the other end is directly fixed to a preset connection point of the second module 200, forming a direct force transmission from the winch 410 power source to the traction sling 420 and then to the second module 200. This reduces force loss and ensures that the traction force is accurately applied to the second module 200, propelling it towards the first module 100.

[0091] To address the issue of the second module 200 being an irregular module prone to shifting due to uneven force, the winch 410 provides a continuous and stable directional traction force to the second module 200 by uniformly raising and lowering the rigging. This guides the second module 200 to gradually approach the first module 100 along a preset docking path, preventing disorderly movement under environmental interference such as water flow and waves, and solving the problem of difficult orientation and alignment of irregular modules. Before closing, the second module 200 is in a floating critical state of equilibrium between gravity and buoyancy, requiring no additional lifting force; only horizontal traction force is needed to drive its movement. The traction mechanism 400, through the flexible connection of the rigging and the controllable power output of the winch 410, provides sufficient traction force to move the second module 200 while avoiding excessive traction force that could cause the second module 200 to become unbalanced, thus adapting to the gentle traction requirements in the floating critical state. The winch 410 features adjustable winding and unwinding speeds and traction output. Operators can adjust the winch 410's operating parameters in real time based on the movement of the second module 200, achieving a slow approach and precise alignment during the closing process. Simultaneously, the rigging connection is simple and convenient, allowing for quick assembly with the second module 200 and improving operational efficiency. The traction mechanism 400 and the guide mechanism 500 work together. When the second module 200 approaches the first module 100 under traction, the traction mechanism 400 maintains stable traction, while the guide mechanism 500 simultaneously corrects minor posture deviations, ensuring precise contact between the mating surfaces of the first module 100 and the second module 200.

[0092] In some embodiments, two winches 410 are provided, each winch 410 leading out at least one traction cable 420, and the multiple traction cables 420 are crossed and connected to the second module 200 respectively to provide traction force in at least two directions to the second module 200.

[0093] Specifically, the second module 200 is an irregular module with an uneven center of gravity distribution. Traction in one direction can easily cause it to rotate, lateralize, or tilt around the traction point. However, the design of two winches 410 leading out traction cables 420 and cross-connecting the second module 200 provides traction force in at least two directions. The cross-layout creates a bidirectional constraint on the traction force. For example, if the two winches 410 are symmetrically arranged on both sides of the docking end of the first module 100, and the cables cross-connect the corresponding force points of the second module 200, they form a reverse traction force component on the horizontal plane, which cancels out the unilateral force deviation caused by the irregular shape of the second module 200. The resultant force of the multi-directional traction force always points in the preset docking direction, ensuring that the second module 200 moves towards the first module 100 in a straight line, avoiding disordered movements such as rotation and drift, and solving the problem of difficult posture control during the traction of irregular modules. Operators can independently control the winding and unwinding speed and traction force of the two winches 410 to fine-tune the position and posture of the second module 200 in real time. For example, when the second module 200 shows slight lateral deviation, the winding speed of one winch 410 can be increased and the corresponding traction force increased, or the operation of the other winch 410 can be slowed down. The deviation can be corrected by the difference in traction force, so that the module always maintains a precise docking posture. Under environmental interference such as water flow and waves, a single rigging is prone to sudden changes in module posture due to external force fluctuations. However, multiple riggings arranged in a cross pattern can share the external interference force. Through the coordinated cancellation of multi-directional traction forces, the stability of the movement of the second module 200 can be maintained, ensuring precise alignment of the docking interface.

[0094] Furthermore, although the second module 200 is in a critical floating state, it still has a certain weight, and during the traction process, it needs to overcome water flow resistance. A single rigging must bear the entire traction force, which is prone to overload and breakage. The two winches 410, in conjunction with multiple cross riggings, can distribute the traction force to multiple stress points, reducing the load on a single rigging and improving the overall load-bearing capacity and durability of the traction system. Even if one rigging experiences a minor failure, the other rigging can still maintain the module's attitude by adjusting the traction force, avoiding docking interruption or module loss of control due to the failure of a single rigging, and significantly improving the safety of the closure operation. The second module 200 has an irregular structure with uneven stress distribution. A single traction point is prone to local stress concentration, which may cause deformation of the module frame or damage to the connection parts. The multi-point connection design of the cross rigging allows for flexible selection of rigging connection points based on the structural strength and center of gravity distribution of the second module 200, ensuring that the traction force is evenly transmitted to the entire module and avoiding excessive local stress. The synergistic effect of multi-directional traction forces can reduce the tendency of the module to twist and bend during the traction process, which is especially suitable for scenarios where the rigidity of the second module 200 is relatively weak, protecting the structural integrity of the module and providing a guarantee for subsequent docking and fixing.

[0095] With the above setup, when the second module 200 approaches the first module 100 under multi-directional traction, the traction mechanism 400 and the guiding mechanism 500 work together efficiently: the traction mechanism 400 maintains the approximate docking direction of the modules through multi-directional traction, providing coarse positioning for the guiding mechanism 500. The guiding mechanism 500 achieves fine correction through dual guidance from the top and sides. The cooperation between the two reduces repeated adjustments during the docking process, speeds up module alignment, and improves the overall efficiency of the closing operation.

[0096] In some embodiments, the transport vehicle 300 includes a semi-submersible barge or a semi-submersible transport vessel; the load adjustment mechanism includes the ballast water system of the semi-submersible barge or the semi-submersible transport vessel.

[0097] Specifically, semi-submersible barges and semi-submersible transport vessels possess spacious deck areas and strong load-bearing capacity, capable of simultaneously and stably carrying both the first module 100 and the second module 200. They are well-suited to the significant size differences and uneven center of gravity distribution between the two types of modules, avoiding module instability caused by insufficient carrying space or layout limitations. They can achieve a semi-submersible state through their own ballast adjustment, facilitating the loading and unloading of the first module 100 and the second module 200 on the water without relying on large lifting equipment. The modules are smoothly seated or detached directly through the floating and sinking of the carrier, simplifying the operation process and reducing reliance on special facilities. The hull structure design of semi-submersible vessels is adapted to complex aquatic environments, with flexible draft adjustment. They maintain a stable posture even under disturbances such as currents and waves, providing a stable bearing foundation for module transportation and assembly, preventing carrier swaying from affecting module docking accuracy. The semi-submersible barge and semi-submersible transport vessel have regular bearing surfaces and no fixed constraints. Their placement can be adjusted according to different specifications of the first module 100 and the second module 200, adapting to the modular disassembly and assembly requirements of the four-post floating wind power semi-submersible platform, while also being compatible with the modular transportation scenarios of other types of semi-submersible platforms.

[0098] Using the ballast water system of a semi-submersible barge or semi-submersible transport vessel as a carrier-state adjustment mechanism, differentiated control of the module's floating state is achieved through precise regulation of the carrier's draft. Specifically, by injecting or dewatering water into the carrier's ballast tanks through the ballast water system, the carrier's draft is adjusted so that the weight of the first module 100 is greater than its buoyancy at that draft, ensuring that the first module 100 is stably supported by the carrier and becomes the fixed reference end for docking operations, avoiding swaying of the docking reference due to module floating. This brings the weight and buoyancy of the second module 200 into a balanced state, reaching the critical floating state, where it neither escapes the carrier's constraints nor requires additional support from the carrier, maintaining just the right level of floating. This creates controllable conditions for the subsequent traction mechanism 400 to drive the docking, without relying on the second module 200's own ballast system. The ballast water system can achieve precise adjustment of the draft. It can finely adjust the carrier loading state in real time according to the actual weight and buoyancy characteristics of the first module 100 and the second module 200, as well as the changes in water flow and water level on site. This ensures that the support stability of the first module 100 and the floating critical state of the second module 200 always meet the docking requirements, avoiding docking deviations caused by fluctuations in the loading state.

[0099] The carrier adjustment mechanism coordinates the carrier state switching throughout the entire closing process. Before closing, the carrier is adjusted to a suitable draft to complete the loading and floating state preset of the first module 100 and the second module 200. During closing, the carrier state is kept stable to provide a stable environment for the operation of the traction and guidance mechanism 500. After closing, the carrier draft is adjusted through the ballast water system so that the first module 100 and the second module 200 are stably supported by the carrier after docking, which facilitates subsequent fixing operations and overall transportation, and achieves seamless connection of the carrier state throughout the entire process.

[0100] With the above setup, the ballast water system is an integral system of semi-submersible vessels, eliminating the need for additional dedicated adjustment equipment and simplifying the overall structure of the closure device. At the same time, by replacing manual intervention or external equipment assistance with systematic load-state adjustment, the number of operation steps is reduced, human error and equipment coordination risks are lowered, and the safety and economy of the closure operation are improved.

[0101] See Figure 13 The embodiments of this application propose a modular surface assembly method for a general-purpose semi-submersible platform, which includes the following steps:

[0102] Step S100: Provide a modular water-based assembly device for a general-purpose semi-submersible platform according to any of the above embodiments;

[0103] Step S200: Adjust the load state of the transport carrier 300 carrying the first module 100 and the second module 200 by the load state adjustment mechanism so that the first module 100 is supported by the transport carrier 300 and the second module 200 is in a floating critical state.

[0104] Step S300: Drive the second module 200 to move towards and dock with the first module 100 via the traction mechanism 400;

[0105] Step S400: Adjust the load state of the transport carrier 300 through the load state adjustment mechanism so that the first module 100 and the second module 200 after docking are supported on the transport carrier 300.

[0106] The modular waterborne assembly method for general-purpose semi-submersible platforms according to the embodiments of this application is adaptable to irregular semi-submersible platform modules without their own ballast systems, solving the adaptation problems of traditional processes; the module docking is precise and efficient, reducing repeated adjustments and improving assembly accuracy and speed; it reduces dependence on large lifting equipment and special facilities, saving operation and shipping costs; it is adaptable to complex water environments, ensuring safe and stable operation; the device is detachable and reusable, adaptable to different modules, and has strong versatility.

[0107] In some embodiments, step S200, adjusting the load state of the transport carrier 300 carrying the first module 100 and the second module 200 through the load state adjustment mechanism, so that the first module 100 is supported by the transport carrier 300 and the second module 200 is in a floating critical state, includes:

[0108] The draft of the transport carrier 300 is adjusted by the load-conditioning mechanism so that the weight of the first module 100 is greater than its buoyancy at that draft, while the weight and buoyancy of the second module 200 are in equilibrium.

[0109] In some embodiments, step S300, driving the second module 200 to move towards and dock with the first module 100 via the traction module, includes:

[0110] When the second module 200 approaches the docking interface of the first module 100, the position of the second module 200 is guided by the guide mechanism 500 set in the docking area.

[0111] In some embodiments, step S200, before the transport carrier 300 carries the first module 100 and the second module 200, and / or step S300, before the second module 200 is driven to move toward and dock with the first module 100 by the traction mechanism 400, includes:

[0112] The temporary support mechanism 600 is detachably installed on the first module 100 and / or the second module 200 to enhance the rigidity of the first module 100 and / or the second module 200.

[0113] In some embodiments, step S200, before the transport carrier 300 carries the first module 100 and the second module 200, and / or step S300, before the second module 200 is driven to move toward and dock with the first module 100 by the traction mechanism 400, includes:

[0114] The float mechanism 700 is detachably mounted on the bottom and / or side of the second module 200 to assist the second module 200 in maintaining stable floating.

[0115] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0116] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A modular waterborne assembly device for a universal semi-submersible platform, characterized in that, include: The transport vehicle is used to carry the first and second modules to be assembled. A load-conditioning mechanism is disposed on the transport vehicle to adjust the load-conditioning of the transport vehicle. The first module is supported by the transport vehicle and the second module is in a critical floating state. A traction mechanism is provided on one of the first module and the second module, for connecting and traction between the first module and the other of the second module, driving the second module to dock with the first module.

2. The modular waterborne assembly device for a universal semi-submersible platform according to claim 1, characterized in that, The modular surface assembly device for the universal semi-submersible platform also includes: A guiding mechanism is provided in the docking area between the first module and the second module, and is used to guide the docking between the first module and the second module.

3. The modular waterborne assembly device for a universal semi-submersible platform according to claim 1, characterized in that, The traction mechanism includes: A winch, which is mounted on the first module; A traction sling, which is led out by the winch and connected to the second module.

4. The modular waterborne assembly device for a universal semi-submersible platform according to claim 3, characterized in that, Two winches are provided, each winch leading out at least one traction cable. The multiple traction cables cross each other and are respectively connected to the second module to provide traction force to the second module in at least two directions.

5. The modular waterborne assembly device for a universal semi-submersible platform according to claim 1, characterized in that, The transport vehicle includes a semi-submersible barge or a semi-submersible transport vessel; the load adjustment mechanism includes the ballast water system of the semi-submersible barge or semi-submersible transport vessel. And / or, the modular water-based assembly device for the universal semi-submersible platform further includes a temporary support mechanism, which is detachably mounted on the first module and / or the second module to enhance the rigidity of the first module and / or the second module; And / or, the modular floating assembly device for the universal semi-submersible platform further includes a pontoon mechanism, which is detachably installed on the bottom and / or side of the second module to assist the second module in maintaining stable floating.

6. A modular surface assembly method for a general-purpose semi-submersible platform, characterized in that, include: Provide a modular surface assembly device for a universal semi-submersible platform as described in any one of claims 1-5; The load state of the transport carrier carrying the first module and the second module is adjusted by the load state adjustment mechanism so that the first module is supported by the transport carrier and the second module is in a floating critical state. The second module is driven to move toward and dock with the first module via a traction mechanism; The load-bearing state of the transport vehicle is adjusted by the load-bearing state adjustment mechanism so that the first module and the second module after docking are supported on the transport vehicle.

7. The modular surface assembly method for a universal semi-submersible platform according to claim 6, characterized in that, The step of adjusting the load state of the transport carrier carrying the first module and the second module through the load state adjustment mechanism, so that the first module is supported by the transport carrier and the second module is in a critical floating state, includes: The draft of the transport vehicle is adjusted by the load-conditioning mechanism so that the weight of the first module is greater than its buoyancy at that draft, while the weight and buoyancy of the second module are in equilibrium.

8. The modular surface assembly method for a universal semi-submersible platform according to claim 6, characterized in that, The step of driving the second module to move towards and dock with the first module via the traction module includes: When the second module approaches the docking interface of the first module, the position of the second module is guided by a guide mechanism set in the docking area.

9. The modular surface assembly method for a universal semi-submersible platform according to claim 6, characterized in that, Before the transport vehicle carries the first module and the second module, and / or before the second module is driven to move toward and dock with the first module by the traction mechanism, the following is included: The temporary support mechanism is detachably installed on the first module and / or the second module to enhance the rigidity of the first module and / or the second module.

10. The modular surface assembly method for a universal semi-submersible platform according to claim 6, characterized in that, Before the transport vehicle carries the first module and the second module, and / or before the second module is driven to move toward and dock with the first module by the traction mechanism, the following is included: The buoy mechanism is detachably installed on the bottom and / or side of the second module to assist the second module in maintaining stable floating.

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