Offshore heavy-duty single pile transportation equipment and transportation method thereof

Abstract

The present invention discloses a heavy-duty single pile transport equipment at sea and a transport method thereof, which relates to the technical field of single pile transport equipment and solves the problem that the method of loading a module transport vehicle together occupies the module transport vehicle and greatly increases the cost of use. It includes a front-end lifting and sliding vehicle, a rear-end lifting and sliding vehicle and a plurality of groups of load-bearing components, each group of load-bearing components includes a plurality of load-bearing sliding vehicles, on which a single pile is carried and transported; the front-end lifting and sliding vehicle is located at the front end of the single pile and is connected to the first load-bearing sliding vehicle, which lifts the front end of the single pile from the previous module transport vehicle, and the rear-end lifting and sliding vehicle is located at the rear end of the single pile and lifts the rear end of the single pile from the rear module transport vehicle. Each group of load-bearing components also includes a plurality of connecting components, which are connected between adjacent load-bearing sliding vehicles, and the connecting components limit the maximum distance between adjacent load-bearing sliding vehicles. It can conveniently transfer a single pile from a module transport vehicle to a ship, achieving the effect of reducing the transportation cost of a single pile.

Description

Technical Field

[0001] The present invention relates to the technical field of monopile transportation equipment, and in particular to offshore heavy monopile transportation equipment and a transportation method thereof. Background Art

[0002] Wind turbine monopiles are used to install wind turbines offshore and are transported to the offshore wind turbine installation site by transport vessels for installation. However, wind turbine monopiles are long, large in diameter, and heavy. With the rapid development of domestic offshore wind power technology and the increasing installed capacity of wind turbines, wind turbine monopiles will become even larger, placing higher demands on their transportation and loading onto ships.

[0003] In the existing technology, in the field of offshore wind power pipe piles loading and unloading, especially the loading and unloading of super-large pipe piles, it has always been a difficult problem. In order to reduce the use of large lifting equipment, it is necessary to use modular transport vehicles or even modular vehicles that can be hydraulically lifted for transportation. However, the method of loading the modular transport vehicles together with the ships occupies the modular transport vehicles, which greatly increases the cost of use. Summary of the Invention

[0004] The purpose of the present invention is to provide a heavy-duty monopile transportation device and a transportation method thereof at sea, which can facilitate the transfer of monopiles from a modular transport vehicle to a ship and reduce the cost of monopile transportation.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A heavy-duty monopile transport device at sea, comprising a front-end lifting and sliding vehicle, a rear-end lifting and sliding vehicle, and a plurality of groups of load-bearing components, each group of load-bearing components comprising a plurality of load-bearing sliding vehicles on which monopiles are carried and transported;

[0007] The front-end lifting and sliding vehicle is located at the front end of the monopile and is connected to the first load-bearing sliding vehicle to lift the front end of the monopile from the previous module transport vehicle. The rear-end lifting and sliding vehicle is located at the rear end of the monopile to lift the rear end of the monopile from the rear module transport vehicle. Each group of load-bearing components also includes a number of connecting components, which are connected between adjacent load-bearing sliding vehicles. The connecting components limit the maximum distance between adjacent load-bearing sliding vehicles.

[0008] Furthermore, the connecting assembly includes a connecting chain.

[0009] Furthermore, the front lifting skid trolley is detachably connected to the first load-bearing skid trolley via a connecting rod.

[0010] Furthermore, the front lifting and sliding vehicle, the rear lifting and sliding vehicle and the bearing assembly slide along a track, and the track is fixed to the hull.

[0011] Furthermore, a accommodating groove is opened at the rear of the hull, and some or all of the load-bearing skid vehicles enter the accommodating groove, and the wheel width spacing of the remaining load-bearing skid vehicles and the front lifting skid vehicle and the rear lifting skid vehicle is greater than the width of the accommodating groove and moves along its two sides.

[0012] Furthermore, a transverse sliding plate is connected to the hull, which slides along the width of the hull and is located at the front end of the track. The front lifting and sliding vehicle moves onto the transverse sliding plate and moves with it to the front of other groups of load-bearing components.

[0013] Furthermore, a plurality of vertical pins are provided under the load-bearing sliding vehicle, corresponding sockets are provided on the hull, and the vertical pins on each load-bearing sliding vehicle are arranged at different positions of the ship width.

[0014] Furthermore, a limiting assembly for limiting the position of the single pile is connected to the hull, and the limiting assembly includes a plurality of connecting ropes arranged along the width direction of the hull, with both ends of the connecting ropes connected to the hull and the middle part downwardly abutting the outer periphery of the single pile.

[0015] A method for transporting heavy monopile transportation equipment at sea, comprising the following steps:

[0016] The monopile is transported to the port terminal by at least two front and rear module transport vehicles. After the transport ship moves into position, the rear lifting and skidding vehicle is first moved to the port terminal, and the front lifting and skidding vehicle and each load-bearing component are moved to the stern of the ship.

[0017] The monopile is moved into position by the module transport vehicle, and the front end of the monopile is moved above the front lifting and sliding vehicle and the bearing components. The top of the front lifting and sliding vehicle is raised, and the front end of the monopile is lifted from the previous module transport vehicle, and the previous module transport vehicle moves away;

[0018] The rear module transport vehicle drives the monopile forward, driving the front lifting and sliding vehicle to move forward, and each load-bearing sliding vehicle is driven forward by the connecting assembly. After the rear module transport vehicle moves the set distance, it moves the rear lifting and sliding vehicle to the rear end of the monopile, and drives the rear end of the monopile to be lifted up from the rear module transport vehicle, and the rear module transport vehicle moves away; it continues to push the monopile forward, completing the movement and loading of the monopile from the port terminal to the ship for transportation to the ship.

[0019] In summary, the present invention has the following beneficial effects:

[0020] During transportation, the front end of the monopile is moved above the front lifting and sliding vehicle and the bearing components, the top of the front lifting and sliding vehicle is raised, and the front end of the monopile is lifted off the front module transport vehicle, so that the front module transport vehicle can move away; then the rear module transport vehicle drives the monopile forward, driving the front lifting and sliding vehicle forward, and then the rear lifting and sliding vehicle is moved to the rear end of the monopile, and the rear end of the monopile is lifted off the rear module transport vehicle, so that the rear module transport vehicle moves away; the monopile is continued to be pushed forward, and the monopile is moved from the port terminal to the ship hull for loading and transporting.

[0021] It can easily transfer the monopile from the modular transport vehicle to the ship, reducing the cost of monopile transportation, and can adapt to different tidal changes through the lifting and lowering of the front-end lifting and sliding vehicle, making transportation easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a heavy-duty monopile transport device at sea in Example 1;

[0023] Figure 2 This is a schematic diagram of the transportation process of a method for transporting heavy monopiles at sea in Example 1;

[0024] Figure 3 This is a schematic structural diagram of a load-bearing skid steer portion of a heavy-duty monopile transport device at sea in the first embodiment;

[0025] Figure 4 This is a schematic structural diagram of the load-bearing skid steer portion of a heavy-duty monopile transport device at sea in the second embodiment.

[0026] In the figure, 1. front-end lifting and sliding vehicle; 2. rear-end lifting and sliding vehicle; 3. load-bearing sliding vehicle; 31. vertical latch; 4. connecting chain; 5. horizontal sliding plate; 6. connecting rope; 7. accommodating groove. DETAILED DESCRIPTION

[0027] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. This embodiment does not constitute a limitation of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0028] Example 1:

[0029] A heavy-duty monopile transport equipment at sea, such as Figure 1 and Figure 2 As shown, it includes a front lifting and sliding vehicle 1, a rear lifting and sliding vehicle 2 and several groups of load-bearing components. Each group of load-bearing components includes several load-bearing sliding vehicles 3, which carry and transport single piles. The number of groups of load-bearing components is set according to the width of the ship to transport a corresponding number of single piles at one time.

[0030] The front-end lifting and sliding vehicle 1 is located at the front end of the single pile and is connected to the first load-bearing sliding vehicle 3, lifting the front end of the single pile from the previous module transport vehicle. The rear-end lifting and sliding vehicle 2 is located at the rear end of the single pile, lifting the rear end of the single pile from the rear module transport vehicle. Each group of load-bearing components also includes a number of connecting components (in this embodiment, the connecting components include connecting chains 4). The connecting components are connected between adjacent load-bearing sliding vehicles 3, and the connecting components limit the maximum distance between adjacent load-bearing sliding vehicles 3; in other embodiments, each load-bearing sliding vehicle 3 can also be provided with an independent motor to achieve self-movement to replace the connecting components.

[0031] like Figure 1 As shown, in this embodiment, the front end lifting and sliding vehicle 1, the rear end lifting and sliding vehicle 2 and the bearing assembly slide along the track, and the track is fixed to the hull; the front end lifting and sliding vehicle 1 and the rear end lifting and sliding vehicle 2 are vehicle body structures that move along the track. In other embodiments, they can also be replaced by a mobile gantry lifting structure, which can cope with some lighter single pile structures.

[0032] like Figure 2 As shown, the front-end lifting sliding trolley 1 is detachably connected to the first load-bearing sliding trolley 3 through a connecting rod or chain and other structures. In this embodiment, the connecting rod is rotatably connected to the load-bearing sliding trolley 3, and the free end hooks the front-end lifting sliding trolley 1 downward, which can also be connected by bolts or pins and other structures; of course, in other embodiments that do not need to be disconnected from the first load-bearing sliding trolley 3, it can also be directly fixedly connected to the first load-bearing sliding trolley 3 by rods and bolts.

[0033] like Figure 3 As shown, in order to improve the stability of the position of the load-bearing sliding vehicle 3, a number of vertical pins 31 (the lower end of which can be connected to balls, etc.) are provided under the load-bearing sliding vehicle 3, and corresponding sockets are opened on the hull. The vertical pins 31 on each load-bearing sliding vehicle 3 are set at different ship width positions. After the load-bearing sliding vehicle 3 is moved into place, the vertical pins 31 on it are automatically plugged into the corresponding sockets under the action of its own weight, and because the vertical pins 31 are distributed on different width coordinates, they will not interfere with each other.

[0034] like Figure 1As shown, in order to reduce the structural complexity and usage of the front-end lifting and sliding vehicle 1 (it does not need to move horizontally to the front of other groups of load-bearing components by itself), a transverse sliding plate 5 is also connected to the hull (the upper side of the transverse sliding plate 5 is connected to a docking rail, which is compatible with the track). The transverse sliding plate 5 slides along the width of the hull and is located at the front end of the track. The front-end lifting and sliding vehicle 1 moves onto the transverse sliding plate 5 and moves with it to the front of other groups of load-bearing components. It can fix the position before and after sliding by structures such as pins, and structures such as motor screws or linear modules can be set to realize electric drive sliding. In other embodiments, the number of front-end lifting and sliding vehicles 1 corresponds to the number of transport piles, thereby replacing the above-mentioned transverse sliding plate 5.

[0035] like Figure 1 As shown, in some embodiments, a limiting assembly for limiting the position of a single pile is connected to the hull to improve its transportation safety; in this embodiment, the limiting assembly includes a plurality of connecting ropes 6 arranged along the width direction of the hull, both ends of the connecting ropes 6 are connected to the hull (one end is fixed, and the other end is connected by a lock), and the middle part downwardly abuts against the outer periphery of the single pile; the limiting assembly can also be replaced or increased by a movable or liftable obstacle structure such as a limiting railing, which limits the displacement of the single pile on the hull through friction or obstacles, thereby improving the safety of the transportation process.

[0036] Example 2: This example has a similar structure to Example 1, with the main difference being that:

[0037] like Figure 4 As shown, a receiving groove 7 is provided at the stern of the hull, and a slope is provided on the side of the receiving groove 7 away from the stern, so that some or all of the load-carrying skids 3 can enter the receiving groove 7 (in some other embodiments, the receiving groove 7 is driven downward by a lifting device in the groove to move the load-carrying skids 3). The wheel width spacing of the remaining load-carrying skids 3 and the front lifting skid trolley 1 and the rear lifting skid trolley 2 is greater than the width of the receiving groove 7, so that they can move along the two sides thereof without falling into the receiving groove 7;

[0038] Specifically, the track of the hull is divided into an outer track and an inner track. The inner track extends into the accommodating groove 7 for some or all of the load-bearing sliding vehicles 3 to enter, and the outer track is distributed on both sides of the accommodating groove 7 for the remaining load-bearing sliding vehicles 3, the front lifting sliding vehicle 1, and the rear lifting sliding vehicle 2 to slide along the outer track; for example, in this embodiment, the inner track and the accommodating groove 7 are used for the middle four load-bearing sliding vehicles 3 to enter, and the outer track is only used for the first and last two load-bearing sliding vehicles 3, the front lifting sliding vehicle 1, and the rear lifting sliding vehicle 2 to slide.

[0039] The present application also discloses a method for transporting heavy-duty monopile transport equipment at sea, comprising the following steps:

[0040] Step S10: The monopile is transported to the port terminal by at least two front and rear module transport vehicles. After the transport ship moves into position, the rear end lifting and sliding trolley 2 is first moved to the port terminal, and the front end lifting and sliding trolley 1 and each load-bearing trolley 3 are moved to the stern of the ship (in the second embodiment, some or all of the load-bearing trolleys 3 enter the receiving groove 7, allowing the remaining load-bearing trolleys 3 and the front end lifting and sliding trolley 1 to slide above, thereby facilitating access to the front end of the monopile);

[0041] Step S20: The monopile is moved into position by the module transport vehicle, and the front end of the monopile is moved above the front lift and skid vehicle 1 and the bearing components. The top of the front lift and skid vehicle 1 is raised, and the front end of the monopile is lifted from the previous module transport vehicle, which then moves away.

[0042] In step S30, the rear module transport vehicle drives the monopile forward, driving the front lifting and sliding vehicle 1 to move forward, and each load-bearing sliding vehicle 3 is driven forward by the connecting assembly (in the second embodiment, some or all of the load-bearing sliding vehicles 3 move upward along the slope of the receiving groove 7 and arrive on the hull deck). After the rear module transport vehicle moves a set distance, it moves the rear lifting and sliding vehicle 2 to the rear end of the monopile and drives the rear end of the monopile to lift off the rear module transport vehicle, and the rear module transport vehicle moves away;

[0043] In step S40, the monopile is continuously pushed forward (a thrust may be applied at the rear end of the monopile, or a winch or other pulling device may be provided at the front end of the ship to drive the front lifting and sliding vehicle 1 and the like to move forward). Finally, the front lifting and sliding vehicle 1 and the rear lifting and sliding vehicle 2 are reset downward, and the monopile is completely carried on each load-bearing sliding vehicle 3 (the front lifting and sliding vehicle 1 and the rear lifting and sliding vehicle 2 may continue to be used for carrying, or may be moved away), completing the movement and loading of the monopile from the port terminal to the ship for transportation by the ship.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of the technical solution of the present invention.

Claims

1. A heavy-duty monopile transport device at sea, characterized by: It includes a front lifting and sliding vehicle, a rear lifting and sliding vehicle and several groups of load-bearing components. Each group of load-bearing components includes several load-bearing sliding vehicles, which carry and transport single piles. The front lifting skid vehicle is located at the front end of the monopile and is connected to the first load-bearing skid vehicle to lift the front end of the monopile from the previous module transport vehicle. The rear lifting skid vehicle is located at the rear end of the monopile to lift the rear end of the monopile from the rear module transport vehicle. Each group of load-bearing components also includes a number of connecting components, which are connected between adjacent load-bearing skid vehicles. The connecting components limit the maximum distance between adjacent load-bearing skid vehicles. A accommodating groove is opened at the tail end of the hull, and some or all of the load-bearing sliding vehicles enter the accommodating groove. The wheel width spacing of the remaining load-bearing sliding vehicles and the front lifting sliding vehicle and the rear lifting sliding vehicle is greater than the width of the accommodating groove, and they move along its two sides; a transverse sliding plate is also connected to the hull, which slides along the width direction of the hull and is located at the front end of the track. The front lifting sliding vehicle moves onto the transverse sliding plate and moves with it to the front of other groups of load-bearing components.

2. The offshore heavy monopile transport equipment according to claim 1, characterized in that: The connecting assembly includes a connecting chain.

3. The offshore heavy monopile transport equipment according to claim 1 or 2, characterized in that: The front lifting skid trolley is detachably connected to the first load-bearing skid trolley via a connecting rod.

4. The offshore heavy monopile transport equipment according to claim 1, characterized in that: The front end lifting and sliding vehicle, the rear end lifting and sliding vehicle and the bearing assembly slide along the track, and the track is fixed to the hull.

5. The offshore heavy monopile transport equipment according to claim 1, characterized in that: A plurality of vertical latches are provided below the load-bearing sliding vehicle, and corresponding sockets are provided on the hull, and the vertical latches on each load-bearing sliding vehicle are arranged at different positions of the ship width.

6. The offshore heavy monopile transport equipment according to claim 1 or 5, characterized in that: The hull is connected with a limit assembly for limiting the position of the single pile. The limit assembly includes several connecting ropes arranged along the width direction of the hull. The two ends of the connecting ropes are connected to the hull, and the middle part downwardly abuts against the outer periphery of the single pile.

7. A method for transporting heavy monopile equipment at sea according to claim 1, characterized in that: The method includes the following steps: The monopile is transported to the port terminal by at least two front and rear module transport vehicles. After the transport ship moves into position, the rear lifting and skidding vehicle is first moved to the port terminal, and the front lifting and skidding vehicle and each load-bearing component are moved to the stern of the ship. The monopile is moved into position by the module transport vehicle, and the front end of the monopile is moved above the front lifting and sliding vehicle and the bearing components. The top of the front lifting and sliding vehicle is raised, and the front end of the monopile is lifted from the previous module transport vehicle, and the previous module transport vehicle moves away; The rear module transport vehicle drives the monopile forward, driving the front lifting and sliding vehicle to move forward, and each load-bearing sliding vehicle is driven forward by the connecting assembly. After the rear module transport vehicle moves the set distance, it moves the rear lifting and sliding vehicle to the rear end of the monopile, and drives the rear end of the monopile to be lifted up from the rear module transport vehicle, and the rear module transport vehicle moves away; it continues to push the monopile forward, completing the movement and loading of the monopile from the port terminal to the ship for transportation to the ship.

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