A large offshore floating wind turbine transport equipment

Abstract

This invention discloses a large-scale floating wind turbine transportation equipment for marine renewable energy equipment, relating to the field of marine renewable energy equipment transportation technology. The transportation equipment includes a first hull, a second hull, and a lateral separation mechanism disposed between the two. The first and second hulls can move laterally relative to each other via the lateral separation mechanism to form an opening for the wind turbine to enter in the separated state, and to jointly form a cavity for accommodating at least the bottom structure of the wind turbine in the combined state. This invention achieves the separation and combination of the hulls through the lateral separation mechanism, allowing the wind turbine to directly enter the cavity laterally without the need for large lifting equipment, significantly improving loading convenience. Simultaneously, the combined hull at least encloses the bottom of the wind turbine internally, effectively reducing water resistance during navigation, thereby achieving efficient and safe transportation of large-scale floating wind turbines for marine use.

Description

Technical Field

[0001] This invention relates to the field of marine renewable energy equipment transportation technology, and in particular to a large-scale floating wind turbine transportation equipment for the sea. Background Technology

[0002] With the rapid development of deep-sea floating wind power, the engineering model of "integrated wind turbine and foundation, whole-unit towing transportation, and rapid on-site installation" has gradually become the mainstream. However, the current marine transportation of large floating wind turbines mainly relies on two methods: one is whole-unit wet towing, which is towing the floating wind turbine directly by tugboat. At this time, the wind turbine tower and foundation structure are completely exposed to water and air, resulting in huge navigation resistance and significant impact from wind and waves, which can easily cause large-scale rolling and pitching, leading to excessive fatigue loads on the tower root and mooring system, posing a risk of structural damage or even capsizing; the other is dry towing, which involves loading the wind turbine as a whole onto large transport vessels such as semi-submersible barges. This method has extremely high requirements for port lifting capacity, channel depth and terminal facilities, short operating window, high risk of logistics chain interruption, and complex and time-consuming loading and unloading process.

[0003] The core drawback of the aforementioned existing technologies lies in the fact that the transport equipment cannot achieve efficient and safe loading of the wind turbine while reducing hydrodynamic resistance. Specifically, in traditional towing methods, the bottom and top of the wind turbine are exposed, resulting in high water resistance; while using integral dry towing requires lifting or roll-on / roll-off the entire wind turbine onto the ship, posing a severe challenge to the structural strength of the wind turbine and port equipment. Therefore, there is an urgent need for a new type of transport equipment that can balance low-resistance transport with convenient loading.

[0004] The above background information is provided only to aid in understanding the concept and technical solution of this invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Summary of the Invention

[0005] The purpose of this invention is to provide a large-scale floating wind turbine transportation equipment for the sea, so as to solve the problems existing in the prior art and to achieve both low-resistance transportation and convenient loading.

[0006] To achieve the above objectives, the present invention provides the following solution: A large-scale floating wind turbine transport equipment for the sea includes a first hull, a second hull, and a lateral separation mechanism disposed between the two; the first hull and the second hull can move laterally relative to each other through the lateral separation mechanism to form an opening for the wind turbine to enter in the separated state, and to jointly form a receiving cavity for at least accommodating the bottom structure of the wind turbine in the combined state.

[0007] In one exemplary embodiment, the lateral separation mechanism includes at least one telescopic connecting rod, the two ends of which are rigidly connected to the bow of the first hull and the second hull, respectively. The extension and retraction of the connecting rod drives the first hull and the second hull to separate or merge synchronously in the lateral direction.

[0008] In one exemplary embodiment, the connecting rod is a multi-segment telescopic truss structure with an integrated hydraulic drive system. The stroke of the hydraulic drive system is adjustable to accommodate the lateral dimensions of the bottom of different types of wind turbines.

[0009] In an exemplary embodiment, sealing members are provided on the mating surfaces of the first hull and the second hull in the combined state to ensure the watertight integrity of the combined hulls when sailing at sea.

[0010] In one exemplary embodiment, a bottom constraint assembly disposed within the receiving cavity is further included for releasably securing the bottom structure of the fan.

[0011] In one exemplary embodiment, the bottom restraint assembly includes at least one set of multi-degree-of-freedom flexible roll damping devices. One end of the roll damping device is fixed to the inner wall of the cabin of the first hull or the second hull, and the other end has an openable clamping member for clamping the bottom component of the wind turbine to suppress multi-directional movement of the wind turbine during transportation.

[0012] In an exemplary embodiment, the multi-degree-of-freedom flexible anti-roll device includes a ball joint, a rigid connecting rod, a spring damper, and an electric clamp connected in sequence. The fixed end of the ball joint is installed on the top or inner wall of the hull compartment, and its movable end is connected to the upper end of the rigid connecting rod. One end of the spring damper is ball-jointed to the lower end of the rigid connecting rod, and the other end is ball-jointed to the back of the electric clamp. The electric clamp is used to hold the bottom component of the fan.

[0013] In an exemplary embodiment, the electric clamp includes an upper clamp and a lower clamp disposed opposite to each other, and an electric push rod for driving the upper clamp and the lower clamp to open and close relative to each other; the inner surfaces of the upper clamp and the lower clamp are covered with a high-friction elastic buffer layer to provide flexible contact and increase friction during clamping.

[0014] In an exemplary embodiment, the multi-degree-of-freedom flexible anti-roll device includes multiple sets, respectively arranged on the first hull and the second hull, and configured to form spatial multi-point flexible constraints at at least one front column, at least one rear column and bottom cross brace at the bottom of the wind turbine, so as to synergistically suppress the movement of the wind turbine in multiple degrees of freedom.

[0015] In one exemplary embodiment, the spring dampers of the multiple sets of the multi-degree-of-freedom flexible anti-sway devices have the same or different damping characteristics, and the clamping force of each electric clamp can be controlled independently to achieve multi-point coordinated constraint on the bottom structure of the fan.

[0016] The present invention achieves the following technical effects compared to the prior art: 1. Significantly reduce hydrodynamic resistance during transport: The first and second hulls, when combined, form a cavity that accommodates at least the bottom structure of the wind turbine. This surrounds the bottom of the wind turbine, effectively reducing the water immersion area and shape resistance of the wind turbine during navigation, thereby reducing towing energy consumption and increasing transport speed.

[0017] 2. Enables convenient and efficient loading operations: Utilizing a lateral separation mechanism, the first and second hulls can move laterally relative to each other, creating a side opening for the wind turbine to enter when separated. This structure allows the wind turbine to directly enter the containment chamber laterally from the dock or near-shore waters, eliminating the need for large floating cranes or dedicated dry docks. This significantly reduces reliance on port facilities and waterway conditions, substantially shortens loading operation time, and extends the operational weather window.

[0018] 3. Improve structural safety during transportation: The combined containment cavity provides enclosure and constraint for the bottom of the wind turbine, reducing the free movement amplitude of the wind turbine under wave action and reducing the dynamic load transmitted to the tower and mooring system due to swaying, thereby protecting the integrity of the key structure of the wind turbine during transportation.

[0019] 4. Enhanced adaptability to different types of fans: Since the first and second hulls can move relative to each other, the lateral dimensions of the accommodating cavity can be adjusted according to the width of the bottom of the fan, so that the same transport equipment can be compatible with different models and improve equipment utilization.

[0020] Other technical solutions disclosed in this invention also have the following technical advantages: 5. Achieve reliable fixation and rapid release of the bottom structure of the wind turbine: The bottom restraint component set in the housing cavity can form a mechanical restraint on the bottom of the wind turbine during transportation to prevent the wind turbine from shifting significantly relative to the transportation equipment; after arriving at the target sea area, the restraint component can be released quickly, which facilitates the separation of the wind turbine from the transportation equipment and its entry into the installation position, taking into account both transportation safety and operational efficiency.

[0021] 6. Multi-degree-of-freedom flexible damping effectively suppresses multi-directional motion: The bottom constraint assembly employs multiple sets of multi-degree-of-freedom flexible damping devices. Utilizing a combination of ball joints and spring dampers, it allows the rigid linkage to swing within a limited range in three-dimensional space. Simultaneously, the spring dampers passively absorb and dissipate the kinetic energy of the wind turbine in the roll, pitch, and yaw directions. Compared to rigid fixing methods, this flexible constraint avoids introducing excessive concentrated loads at the bottom of the wind turbine, while significantly reducing the dynamic acceleration of the wind turbine tower and nacelle, protecting critical structures from fatigue damage.

[0022] 7. Adaptive clamping, compatible with different bottom component sizes: The electric clamping plate is driven to open and close by an electric push rod. Combined with the high-friction elastic buffer layer on the inside, it can adaptively clamp columns or cross braces of different diameters, providing stable friction without damaging the component surface. The elastic buffer layer also serves to dampen shocks and distribute pressure evenly, further improving the reliability and safety of the restraint.

[0023] 8. Multi-point spatial coordination constraint enhances overall stability: By arranging multiple sets of anti-sway devices at at least one front column, one rear column, and one bottom cross brace at the bottom of the wind turbine, a multi-point flexible constraint system is formed in both the vertical and horizontal directions. The damping characteristics and clamping force of each clamping point can be independently controlled, and can be coordinated and adjusted according to sea conditions and wind turbine motion response to actively suppress the multi-degree-of-freedom motion of the wind turbine, significantly improving the overall stability of the transport equipment under complex sea conditions.

[0024] 9. Reduce structural load on transport equipment and extend service life: Since the bottom restraint components effectively suppress the relative movement of the wind turbine, the dynamic load transmitted to the first hull, the second hull and their connecting structures is reduced. This not only improves the safety of the transportation process, but also reduces the fatigue accumulation of the hull structure, which helps to extend the service life of the transport equipment and reduce maintenance costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in 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 effort.

[0026] Figure 1 A schematic diagram of the structure of a large-scale floating wind turbine transportation equipment at sea, as disclosed in a specific embodiment of the present invention. Figure 2 for Figure 1 Top view; Figure 3 for Figure 1 The main view; Figure 4 for Figure 1 Side view; Figure 5 for Figure 1 The omitted portion obscures the rear view of the outer shell; Figure 6 for Figure 1 Main view showing the loading status; Figure 7 for Figure 1 A top view of the loaded state; Figure 8 for Figure 1 Schematic diagram of the bottom constraint component; Among them, 10. Transportation equipment; 101. First hull; 102. Second hull; 103. Lateral separation mechanism; 20. Anti-roll device; 21. Ball joint; 22. Rigid connecting rod; 23. Spring damper; 24. Electric clamp; 241. Upper clamp; 242. Clamp slide rail; 243. Lower clamp; 30. Fan; 31. Front left column; 32. Front right column; 33. Rear column; 34. Bottom cross brace. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] The purpose of this invention is to provide a large-scale floating wind turbine transportation equipment for the sea, so as to solve the problems existing in the prior art and to achieve both low-resistance transportation and convenient loading.

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Please refer to Figures 1 to 8This embodiment provides a large-scale floating wind turbine transportation equipment. The transportation equipment 10 mainly includes a first hull 101, a second hull 102, and a lateral separation mechanism 103 disposed between the two. In this embodiment, the first hull 101 and the second hull 102 are structurally mirror images of each other, forming the left and right halves of the transportation equipment 10, respectively. One end of the lateral separation mechanism 103 is rigidly connected to the first hull 101, and the other end is rigidly connected to the second hull 102. The lateral separation mechanism 103 is configured to actively extend and retract along the lateral direction (i.e., left-right direction) of the hull, thereby driving the first hull 101 and the second hull 102 to move laterally relative to each other. When the wind turbine 30 needs to be loaded, the lateral separation mechanism 103 extends, pushing the first hull 101 and the second hull 102 away from each other, forming a side opening large enough for the bottom structure of the wind turbine 30 to enter laterally. After the wind turbine 30 is in place, the lateral separation mechanism 103 shortens, pulling the two hulls closer and eventually merging them. At this point, the relative mating surfaces of the two hulls fit tightly together, forming a receiving cavity. This receiving cavity is designed to accommodate at least the bottom structure of the floating wind turbine 30 (including pontoons, cross braces, and column bases, etc.), while the upper tower, nacelle, and impeller of the wind turbine 30 are exposed outside the receiving cavity. By enclosing the bottom of the wind turbine 30 inside the hull, the form resistance and frictional resistance generated by the water-submerged part of the wind turbine 30 during navigation are effectively reduced, while avoiding the disadvantage of the upper structure of the wind turbine 30 directly bearing the wind load in traditional integral wet towing. The presence of the lateral separation mechanism 103 eliminates the need for large floating cranes or dry docks during the loading process, allowing the wind turbine 30 to drive directly into the dock laterally, significantly improving the convenience of loading and unloading and the operational window period.

[0031] As a specific implementation, the lateral separation mechanism 103 includes at least one telescopic connecting rod. Both ends of the connecting rod are rigidly connected to the bow of the first hull 101 and the second hull 102, respectively. The extension and retraction of the connecting rod can be achieved using a built-in hydraulic drive system, specifically a multi-segment telescopic truss structure integrating hydraulic cylinders and piston assemblies. The hydraulic drive system controls the oil inlet and outlet of the cylinders to achieve smooth extension and retraction of the connecting rod, thereby driving the two hulls to separate or merge synchronously laterally. To accommodate the differences in lateral dimensions at the bottom of different types of wind turbines 30, the stroke of this hydraulic drive system can be steplessly adjusted according to actual needs, enhancing the versatility of the transport equipment 10. It should be noted that both the multi-segment telescopic truss structure and the hydraulic drive system are mature existing technologies in marine engineering equipment. Those skilled in the art can select the specific truss cross-section, hydraulic cylinder specifications, and sealing method according to actual load-bearing requirements, which will not be elaborated here.

[0032] To ensure good watertightness of the merged hull during sea navigation, elastic sealing components, such as rubber sealing strips or inflatable sealing rings, are longitudinally arranged on the mating surfaces of the first hull 101 and the second hull 102. When the two hulls are pressed together under the drive of the transverse separation mechanism 103, the sealing components are compressed and fill the microscopic gaps on the mating surfaces, effectively preventing seawater from seeping into the cavity. The material of the sealing components can be nitrile rubber or polyurethane elastomer resistant to seawater corrosion, and the installation method can be embedded or bolted plate type, both of which are conventional technologies in the shipbuilding industry and will not be elaborated here.

[0033] It should be noted that both the first hull 101 and the second hull 102 in the transport equipment 10 are hull structures with independent buoyancy compartments. Referring to existing split-hull mud barges or open-hull engineering vessels, the first hull 101 and the second hull 102 have multiple watertight compartments along their length, forming independent buoyancy spaces, enabling each side of the hull to float independently on the sea surface when separated. When the two hulls are combined via the transverse separation mechanism 103, the buoyancy spaces of each side of the hull jointly provide total buoyancy. Based on Archimedes' principle, those skilled in the art can calculate the required total displacement volume according to conventional ship design methods, based on the total weight of the transported wind turbine (including the floating foundation, tower, nacelle, and impeller, etc.) and the self-weight of the transport equipment 10, thereby determining the volume, distribution, number, and location of each buoyancy compartment and the watertight compartments. Furthermore, the sealing of the mating surfaces of the two hulls can employ mature mating sealing technology found in existing open-hull vessels, coupled with mechanical clamping devices, to ensure that the water ingress rate of the merged cavity is within a controllable range and will not affect normal navigation. The aforementioned buoyancy chamber design and mating seal are well-known technologies in the field of marine engineering, and can be implemented by those skilled in the art without creative effort; therefore, they will not be elaborated upon here.

[0034] like Figure 6 and Figure 7 As shown, when the first hull 101 and the second hull 102 are fully merged, they together form a conventional hull structure with a bow, stern, and two sidewalls. For ease of propulsion, a propulsion interface is provided at the stern, such as a shaft interface for mounting a fully azimuth rudder propeller or a fixed-pitch propeller. Simultaneously, considering economic efficiency and the needs of different operating modes, a towing connection point (such as a towing eyeplate or towing cable pulley) can also be provided at the stern for tugboat towing. The specific structure of the propulsion interface and the towing connection point can refer to existing tugboat and barge design standards and is considered well-known technology.

[0035] To further suppress the multidirectional movement of the wind turbine 30 caused by waves during transportation and reduce the dynamic load transmitted to the wind turbine 30 tower and foundation structure, this embodiment includes a bottom restraint assembly within the accommodating cavity. For example... Figure 2 , Figure 5 , Figure 8 As shown, the bottom constraint assembly includes multiple sets of multi-degree-of-freedom flexible anti-roll devices 20, which are fixed to the interior walls of the first hull 101 and the second hull 102, respectively. One end of each anti-roll device 20 is mounted on a reinforcing structure on the top or inner wall of the compartment, and the other end has an openable clamping member for directly clamping the bottom column or bottom cross brace 34 of the fan 30. When the clamping member is closed, the bottom structure of the fan 30 is mechanically constrained within the receiving cavity, preventing large relative displacement. At the same time, due to the multi-degree-of-freedom and flexible damping characteristics of the anti-roll device 20, it does not rigidly lock the fan 30, but allows the fan 30 to swing gently within a limited range, dissipating kinetic energy in the process. This "flexible constraint" design concept ensures the overall stability of the fan 30 during transportation and avoids local stress concentration that may result from rigid fixing.

[0036] Specifically, such as Figure 8 As shown, each set of multi-degree-of-freedom flexible roll damping devices 20 includes a ball joint 21, a rigid connecting rod 22, a spring damper 23, and an electric clamp 24 connected in sequence. The fixed end of the ball joint 21 is installed on a base on the top or inner wall of the hull compartment by bolts or welding, and its movable end is connected to the upper end of the rigid connecting rod 22. The ball joint 21 allows the rigid connecting rod 22 to swing around a fixed point in three-dimensional space at a limited angle, thereby adapting to the roll, pitch, and bow attitude changes of the wind turbine 30 under wave action. The lower end of the rigid connecting rod 22 is connected to one end of the spring damper 23 by a ball joint, and the other end of the spring damper 23 is also connected to the back of the electric clamp 24 by a ball joint. The spring damper 23 is a passive energy dissipation element, which can integrate a compression spring and a hydraulic damping orifice or viscoelastic material. When the fan 30 undergoes relative motion, the kinetic energy is transferred to the spring damper 23 through the rigid connecting rod 22. The spring element provides elastic restoring force, while the damping element converts the mechanical energy into heat energy and dissipates it. By rationally designing the spring stiffness and damping coefficient, the resonance response of the fan 30 in multiple degrees of freedom can be effectively suppressed, and the peak dynamic load transmitted to the bottom structure of the fan 30 can be significantly reduced.

[0037] The electric clamp 24 serves as the actuator that directly contacts and clamps the fan 30 component; its structure is as follows: Figure 8The image shows a partial enlargement. The electric clamping plate 24 includes an upper clamping plate 241 and a lower clamping plate 243 arranged opposite each other, and an electric push rod that drives the two to open and close relative to each other (the specific form of the electric push rod is not shown in the figure, but it can be a screw-nut type or a linear motor type electric push rod). The upper clamping plate 241 and the lower clamping plate 243 move along the clamping plate slide rail 242 to ensure the smoothness of the clamping action. The drive motor and reducer of the electric push rod are arranged in a sealed protective shell inside the ship's cabin to avoid seawater corrosion. The inner surfaces of the upper clamping plate 241 and the lower clamping plate 243 are covered with a high-friction elastic buffer layer, such as a patterned neoprene rubber or polyurethane layer. This buffer layer, on the one hand, increases the coefficient of friction to prevent the fan 30 column from slipping in the clamping surface, and on the other hand, plays an elastic buffering role to prevent the rigid clamping plate from directly damaging the anti-corrosion coating or composite material of the fan 30 structural surface.

[0038] During actual loading, the hydraulic control system first drives the lateral separation mechanism 103 to extend, separating the first hull 101 from the second hull 102 to a predetermined width. The blower 30, assisted by a dock tugboat, laterally enters the receiving cavity and is roughly positioned. Subsequently, the electric push rods of each electric clamp 24 actuate, driving the upper clamp 241 and lower clamp 243 to open. After adjusting the opening according to the actual diameter of the blower 30's column or cross brace, they close, ensuring a tight fit between the buffer layer and the component surface. The clamping force is controlled in a closed loop via current feedback from the electric push rods to prevent over-clamping. Finally, the lateral separation mechanism 103 shortens, the two hulls merge, and the sealing components are pressed together, completing the loading operation. The unloading process is performed in the reverse order.

[0039] To form a stable constraint system in space, multiple sets of multi-degree-of-freedom flexible roll damping devices 20 are arranged at different longitudinal positions and heights on the first hull 101 and the second hull 102 in this embodiment. Specifically, roll damping devices 20 are respectively installed at the left front column 31, the right front column 32, the rear column 33, and the bottom cross brace 34 of the wind turbine 30. These clamping points form a multi-point flexible constraint in space in the circumferential and height directions at the bottom of the wind turbine 30. Through coordinated operation, the six degrees of freedom motion of the wind turbine 30 can be effectively suppressed, especially the three main rotational degrees of freedom of roll, pitch, and bow. Since the spring dampers 23 at each clamping point can be selected with different damping characteristics (for example, the front damper mainly suppresses pitch and uses a larger damping coefficient; the rear damper mainly suppresses roll and uses a smaller stiffness), and the clamping force of each electric clamp 24 can be independently controlled, it can be coordinated and adjusted according to the real-time sea conditions and the dynamic response of the wind turbine 30 to achieve an optimized multi-point constraint strategy. This design significantly improves the overall stability and adaptability of the transport equipment 10 in complex sea conditions.

[0040] The specific dimensions, materials, and process parameters of each of the above components can be determined through conventional engineering calculations based on the actual transport of the 30-ton wind turbine (e.g., a 10MW~20MW floating wind turbine) and the operating sea conditions (such as wave height and period). Those skilled in the art should understand that, without departing from the scope of protection defined by the claims of this invention, several simple substitutions or modifications can be made to the above embodiments. For example, the hydraulic drive system can be replaced with an electric screw drive, or the ball joint can be replaced with an elastic ball joint, etc. These are all equivalent technical solutions of this invention.

[0041] In the description of this invention, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention, and do not imply or require that the device or element referred to must have a specific orientation or construction method, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish the objects of description and should not be construed as limiting importance or order, and the features defined by such terms may explicitly or implicitly include one or more of those features. Unless otherwise stated, "a plurality of" in the description of this invention refers to two or more.

[0042] The terms "installation," "connection," and "joining" should be interpreted broadly, unless otherwise explicitly defined, to include, but are not limited to, fixed connections, detachable connections, or integrally formed connections; mechanical or electrical connections; direct connections or indirect connections via an intermediate medium; and internal communication between two components. Those skilled in the art can understand their meaning based on the specific technical solution. The fixed connections involved in this invention, unless otherwise stated, include both detachable fixed connections (such as bolt and screw connections) and non-detachable fixed connections (such as riveting and welding), and may also include integral structures achieved through an integral forming process (such as casting) (except where integral forming is clearly not feasible).

[0043] Unless otherwise stated, the terms used in any of the technical solutions disclosed in this invention to indicate positional relationships or shapes cover states or shapes that are similar to, close to, or adjacent to them.

[0044] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured using a one-piece molding process.

[0045] It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read them, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0046] In the embodiments of this application, the same reference numerals are used to denote the same component or part.

[0047] Any adaptive changes made according to actual needs are within the scope of protection of this invention.

[0048] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A marine large floating wind turbine transport equipment, characterized by: It includes a first hull (11), a second hull (12), and a transverse separation mechanism (13) disposed between the two; the first hull (11) and the second hull (12) can move laterally relative to each other through the transverse separation mechanism (13) to form an opening for the fan (30) to enter in the separated state, and to jointly form a receiving cavity for at least accommodating the bottom structure of the fan (30) in the combined state.

2. Offshore large floating windmill transportation equipment according to claim 1, characterized in that: The lateral separation mechanism (13) includes at least one telescopic connecting rod, the two ends of which are rigidly connected to the bow of the first hull (11) and the second hull (12), respectively. The extension and retraction of the connecting rod drives the first hull (11) and the second hull (12) to separate or merge synchronously in the lateral direction.

3. The large-scale floating wind turbine transportation equipment for offshore use according to claim 2, characterized in that: The connecting rod is a multi-segment telescopic truss structure with an integrated hydraulic drive system. The stroke of the hydraulic drive system is adjustable to accommodate the lateral dimensions of the bottom of different types of wind turbines.

4. Offshore large floating windmill transportation equipment according to claim 1, characterized in that: The first hull (11) and the second hull (12) are provided with sealing components on their respective docking surfaces in the combined state to ensure the watertight integrity of the combined hulls when sailing at sea.

5. Offshore large floating windmill transportation equipment according to any of the claims 1-4, characterized in that: It also includes a bottom constraint assembly disposed within the receiving cavity for releasably securing the bottom structure of the fan (30).

6. Offshore large floating windmill transportation equipment according to claim 5, characterized in that: The bottom restraint assembly includes at least one set of multi-degree-of-freedom flexible anti-roll devices (20), one end of which is fixed to the inner wall of the first hull (11) or the second hull (12), and the other end has an openable clamping member for clamping the bottom component of the fan (30) to suppress the multi-directional movement of the fan during transportation.

7. Offshore large floating windmill transportation equipment according to claim 6, characterized in that: The multi-degree-of-freedom flexible anti-sway device (20) includes a ball joint (21), a rigid connecting rod (22), a spring damper (23), and an electric clamp (24) connected in sequence. The fixed end of the ball joint (21) is installed on the top or inner wall of the hull compartment, and its movable end is connected to the upper end of the rigid connecting rod (22). One end of the spring damper (23) is ball-jointed to the lower end of the rigid connecting rod (22), and the other end is ball-jointed to the back of the electric clamp (24). The electric clamp (24) is used to clamp the bottom component of the fan (30).

8. Offshore large floating windmill transportation equipment according to claim 7, characterized in that: The electric clamp (24) includes an upper clamp (241) and a lower clamp (243) arranged opposite to each other, and an electric push rod that drives the upper clamp (241) and the lower clamp (243) to open and close relative to each other; the inner surfaces of the upper clamp (241) and the lower clamp (243) are covered with a high friction elastic buffer layer to provide flexible contact and increase friction during clamping.

9. Offshore large floating windmill transportation equipment according to claim 6, characterized in that: The multi-degree-of-freedom flexible anti-roll device (20) includes multiple sets, which are respectively arranged on the first hull (11) and the second hull (12), and are configured to form spatial multi-point flexible constraints at at least one front column, at least one rear column (33) and bottom cross brace (34) at the bottom of the fan (30) to collaboratively suppress the movement of the fan in multiple degrees of freedom.

10. Offshore large floating windmill transportation equipment according to claim 9, characterized in that: The spring dampers (23) of the multiple sets of multi-degree-of-freedom flexible anti-sway devices (20) have the same or different damping characteristics, and the clamping force of each electric clamp (24) can be controlled independently to achieve multi-point coordinated constraint on the bottom structure of the fan.

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