Material supply equipment and method for offshore wind power project construction and operation and maintenance

Abstract

The present invention discloses a material supply equipment and method for offshore wind power project construction and operation and maintenance, the device comprises an unpowered hull, the unpowered hull comprises a main deck and multiple sub-decks, the main deck and the multiple sub-decks are connected and spliced ​​into a modular deck by a docking mechanism; the modular deck is connected with detachable railings on all sides; the main deck upper surface is connected with a main crane and multiple sub-cranes; the main crane comprises a tower base, the top of the tower base is connected with a slewing mechanism composed of a hydraulic cylinder and a bearing, the slewing mechanism is connected to a boom, the front end of the boom is connected with a windproof mechanism, and a wind-resistant adjustment algorithm can be executed; the invention solves the problems of insufficient cargo capacity, low efficiency, poor safety and insufficient stability in offshore wind power construction and transportation in the prior art, and has the characteristics of being splicable, movable, loadable and unloadable, and having good wind resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of data processing, and in particular to a material supply equipment and method for offshore wind power project construction and operation and maintenance. Background Art

[0002] At present, the supply of materials for offshore wind power projects generally uses tugboats and deck barges to transport large components such as wind power main engines, blades, towers, and foundations. This type of ship usually transports 2 sets of blades or 4 to 6 sets of main engines and hubs at a time; small spare parts are even transported to the wind farm by transport boats. Due to the short offshore construction window and low efficiency, this supply method often results in long-term ship pressure, resulting in a large amount of demurrage. At the same time, this type of transport ship has poor stability due to the influence of waves and surging currents at deep sea construction sites, and there are great safety hazards when cooperating with self-elevating offshore construction platforms; and the existing transportation equipment has poor stability in the sea with many waves. When transporting equipment that is easy to roll, such as towers and hubs, there is a risk of equipment movement, which will cause great transportation risks. When lifting loads, the lifting equipment will also cause oscillations and swings due to the action of waves and wind, which will also have a great impact on loading and unloading; Therefore, it is necessary to design a material supply equipment and method for offshore wind power project construction and operation and maintenance to solve the above problems. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a material supply equipment and method for the construction and operation and maintenance of offshore wind power projects, so as to solve the problems of insufficient cargo capacity, low efficiency, poor safety and insufficient stability in the existing offshore wind power construction and transportation technology. The equipment and method have the characteristics of being splicable, movable, loadable and unloadable, and having good wind resistance.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A material supply equipment for offshore wind power engineering construction and operation and maintenance, comprising an unpowered hull, the unpowered hull comprising a main deck and a plurality of sub-decks, the main deck and the plurality of sub-decks being connected and spliced ​​into a modular deck through a docking mechanism; the docking mechanism comprising two sets of parallel transverse hydraulic cylinders connected to the surface of the main deck, the telescopic ends of the transverse hydraulic cylinders being connected with positioning pins; the upper surface of the sub-deck is provided with two corresponding sets of positioning grooves for plugging and matching with the positioning pins; two sets of ear seats are connected to one side of the main deck and the sub-deck, and through holes are provided on the surface of the ear seats; the side wall of the main deck directly below the ear seats is vertically connected with a longitudinal hydraulic cylinder, the telescopic ends of the longitudinal hydraulic cylinders are connected with a pin that passes through the through holes of the ear seats to connect the main deck and the sub-deck; detachable railings are connected around the modular deck; the upper surface of the main deck is connected with a main crane and a plurality of sub-cranes; the main crane comprises a tower seat, the top of the tower seat is connected with a slewing mechanism consisting of a hydraulic cylinder and a bearing, the slewing mechanism is connected to a boom, and the front end of the boom is connected with a windproof mechanism; a plurality of bolt holes are provided at equal intervals on the surface of the main deck and the sub-deck, and are bolted to a detachable cargo board through bolts.

[0006] Preferably, the docking mechanism comprises a plurality of anchor machines connected to the upper surface of the main deck, one end of the anchor machine is connected to the positioning point through a positioning anchor, and the other end is connected to a cable pile connected to the upper surface of the sub-deck through a cable.

[0007] Preferably, the detachable cargo board is a double-layer structure, the bottom layer is a flat layer of a stainless steel structure, and the upper layer is a flexible rubber layer; a plurality of bolt holes are evenly spaced on the surface of the detachable cargo board, and the bolt holes penetrate the rubber layer and the flat layer.

[0008] Preferably, the spacing between the bolt holes on the surface of the detachable cargo board is smaller than the spacing between the bolt holes on the surface of the subdeck, and the number of bolt holes on the surface of the detachable cargo board is greater than the number of bolt holes on the surface of the subdeck.

[0009] Preferably, the surface of the detachable cargo board is fixed with a fastening buckle by bolts, and the fastening buckle is an elastic stainless steel sheet; holes are opened at both ends of the fastening buckle, and it is connected to the bolt holes on the surface of the detachable cargo board by bolts.

[0010] Preferably, a baffle is fixed to the surface of the detachable cargo board by bolts, and the baffle is an L-shaped structure, which cooperates with the bolts through the bottom opening and is fixed in the bolt holes on the surface of the detachable cargo board.

[0011] Preferably, the windproof mechanism comprises four U-shaped brackets arranged on the lower surface of the boom, and rollers are rotatably connected between each of the U-shaped brackets, and the ends of the rollers are respectively connected to a driving motor.

[0012] Preferably, an annular groove is formed on the surface of the roller, a group of steel wire cables are wound in the annular groove, and a hook is connected to the bottom end of the steel wire cable to be hung on the cargo to be lifted.

[0013] Preferably, a monitoring module is connected to the lower surface of the boom, and the monitoring module includes a PID controller and a CCD camera; the PID controller is electrically connected to the drive motor; an independent inclination sensor is connected to the bottom end of each set of steel wire cables, and the CCD camera and the inclination sensor are electrically connected to the PID controller; the PID controller has a built-in wind resistance adjustment algorithm; the monitoring module is located at the center of the four U-shaped brackets.

[0014] Preferably, the method for using the above-mentioned material supply equipment for offshore wind power project construction and operation and maintenance comprises the following steps:

[0015] S1: During the construction period of offshore wind power projects, tugboats are used to tow the unpowered hull to an anchorage near the wind farm where anchoring is allowed;

[0016] S2, using offshore deck barges to transport large wind power equipment and production tools and materials during the construction period from the shore dock to the unpowered hull:

[0017] After the offshore deck barge is berthed, the main crane and auxiliary crane on the non-powered hull are used to unload the large wind power equipment and production tools and materials onto the non-powered hull and stack them;

[0018] S3, using deep sea deck barge to transport large wind power equipment and production tools and materials during the construction period from the unpowered hull to the offshore wind power construction site:

[0019] After the deep-sea deck barge is berthed, the main crane and auxiliary crane on the unpowered hull are used to transfer large wind power equipment and production tools and materials to the deep-sea deck barge, and then transported to the wind power construction site;

[0020] S4: When the offshore deck barge and deep-sea deck barge have insufficient transport capacity, the unpowered ship will be towed to the dock, and after the large wind power equipment and production tools and materials are loaded on board, the unpowered ship will be towed directly to the wind power construction site;

[0021] S5: During the operation and maintenance period of the offshore wind power project, a tugboat is used to tow the unpowered hull to the wind power operation and maintenance position to berth the installation ship, and the main crane and auxiliary crane on the unpowered hull are used to lift the large wind power equipment and production tools and materials disassembled from the installation ship to the modular deck of the unpowered hull, and then the tugboat is used to tow the unpowered hull directly to the dock for unloading;

[0022] S6: When the large wind power equipment and production tools and materials to be transported exceed the carrying capacity of the main deck, the deck area can be increased by splicing sub-decks:

[0023] The anchor windlass on the main deck is connected to the mooring pile of the sub-deck through a cable. The anchor windlass is started to slowly pull the sub-deck closer to the connection mechanism, and then the transverse hydraulic cylinder is started to insert two sets of positioning pins into two sets of positioning grooves with guiding functions, so as to achieve the coaxiality of the through holes of the ear seats on the main deck and the sub-deck; finally, the longitudinal hydraulic cylinder is started to insert the pins into the through holes of the ear seats to achieve the positioning docking of the main deck and the sub-deck;

[0024] S7, for rolling equipment such as towers and hubs, select a detachable cargo board of appropriate size and fix it on the deck area where it needs to be stacked, then stack the rolling equipment such as towers and hubs on the surface of the detachable cargo board, install multiple baffles around it to limit the position, and fix it on the surface with multiple fastening buckles;

[0025] S8, during the main hoisting process, the load is hoisted at four points through four steel wire cables; the monitoring module executes the wind resistance adjustment algorithm through the PID controller, as follows:

[0026] S801, after the hook is connected to the load, four drive motors simultaneously drive the four wire cables on the four rollers to rise synchronously;

[0027] S802, performing image recognition:

[0028] The CCD camera takes the vertical direction directly below as the coordinate origin and the four-point lifting positions on the load surface as the vertices to construct a plane rectangular coordinate system, draw a calibration rectangle, record the coordinates of the four vertex positions and the coordinates of the virtual edges of the calibration rectangle, and calculate the area S1 of the calibration rectangle;

[0029] S803, performing image offset detection:

[0030] During the lifting and transportation process, the CCD camera periodically collects the image data below, takes the current position of the four-point lifting position on the load surface as the vertex, draws a real-time rectangle, records the coordinates of the four vertex positions and the coordinates of the virtual edges of the real-time rectangle, and calculates the area S2 of the real-time rectangle that falls outside the calibration rectangle; calculates the image offset value S2 / S1, and if the image offset value S2 / S1 is greater than the threshold △S, it is determined to be a lifting offset, otherwise it is determined to be normal lifting;

[0031] S804, when it is determined that there is a hoisting deviation, the PID controller collects data from the inclination sensors of multiple wire cables as the swing angle of each wire cable; the PID controller uses the rope length, the distance between the hook connection points and the swing angle as known data, calculates the corresponding elongation of the wire cable through trigonometric functions, and converts the elongation into the rotation amount of the drive motor, and the PID controller issues a control instruction to adjust the corresponding wire cable to contract or extend through the drive motor; the rope length data is obtained as follows: the number of rotations and the rotation angle are obtained through the encoder of the drive motor, and the rope length is calculated in combination with the diameter of the roller and the height of the main hoist;

[0032] S805, looping through steps S803 and S804 until the lifting is determined to be normal;

[0033] S806, loop through steps S803 to S805 until the lifting is completed.

[0034] The beneficial effects of the material supply equipment and method for offshore wind power project construction and operation and maintenance provided by the present invention are as follows:

[0035] 1. The present invention designs a loadable, splicable, movable unpowered ship for offshore wind power generation equipment storage and short-distance transportation at sea; wherein short-distance transportation is towed or pushed by a tugboat; such unpowered hull is coordinated and used with conventional power transport ships, and the wind turbine equipment on the long-distance transport ship is stored on such unpowered hull ship near the wind farm. The long-distance transport ship then returns to the departure place to transport the wind turbine equipment, and the wind turbine equipment on such unpowered hull ship is transported by itself to the self-elevating construction platform. This type of transportation method can greatly increase the utilization rate of long-distance transport ships and reduce the transportation costs of materials and equipment. At the same time, it can also ensure that there will be no idle workers on the wind farm installation ships, improve the efficiency of wind turbine installation, and thus reduce construction costs.

[0036] 2. The present invention aims to solve the problem that some ports can only rely on small and medium-sized transport ships, while wind farm construction sites must be equipped with large ships. The unpowered hull can be used as a transfer point to solve the conflicting relationship between the port and the wind farm construction site regarding the size of the ship. At the same time, it can also ease the pressure on port berths, and the cargo can be loaded and transported in advance to the unpowered hull for storage.

[0037] 3. The unpowered hull of the present invention is composed of a modular unpowered deck ship with a fully rotating crane and a modular unpowered deck ship without a crane. If the port has the ability to berth large ships and is near the wind farm, in an emergency, the modular unpowered deck ship without a crane can go to the port to load and transport to the wind farm to ensure the supply of materials and equipment.

[0038] 4. The unpowered hull of the present invention is splicable and equipped with a corresponding forklift, so it can be used as a floating material storage base at sea for the storage of spare parts and daily necessities for wind turbine installation, operation and maintenance, and technical transformation. Especially during technical transformation and factory repair, it is used to store complete sets of wind turbine equipment such as blades, towers, nacelles, and hubs, reducing unnecessary wind turbine equipment on shore, thereby reducing technical transformation construction costs, and also providing a spacious work site for the installation platform. At the same time, it can serve as a reserve force for maritime national defense construction.

[0039] 5. The present invention aims at the stability of the offshore floating material storage base, and in case of severe weather at sea, the anchorage serves as a shelter for other ships. The specific method is to connect small and medium-sized ships with the offshore floating material storage base to improve the ability to resist wind and surge and ensure the safety of ships at sea.

[0040] 6. The present invention designs a detachable fixing mechanism on the deck surface, which can effectively fix the equipment that is easy to roll, and can freely adjust the position of the fixing area according to the size of different equipment, so as to adapt to the sizes of various equipment.

[0041] 7. The present invention is provided with a windproof mechanism, which can execute a wind-resistant adjustment algorithm to actively offset the hoisting swing caused by wind and waves during the hoisting process, thereby effectively increasing the hoisting efficiency and hoisting safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0043] Figure 1 It is a structural schematic diagram of the present invention;

[0044] Figure 2 It is an overall schematic diagram of the modular deck after splicing in the present invention;

[0045] Figure 3 It is a schematic diagram of the structure of fixing the tower by a detachable cargo plate of the present invention;

[0046] Figure 4 Schematic diagram of the structure of the windproof mechanism of the present invention; the arrow indicates the shooting direction of the CCD;

[0047] Figure 5 is a schematic diagram of a marine transportation route in an embodiment of the present invention;

[0048] Figure 6 Schematic diagram of the position of the anchor machine on the main deck in an embodiment of the present invention;

[0049] Figure 7 It is a schematic diagram of the anchor machine in the present invention cooperating with the mooring pile through the cable;

[0050] Figure 8It is a structural schematic diagram of the docking mechanism in the present invention;

[0051] Fig. 9 Schematic diagram of the ear seat of the docking mechanism in the embodiment of the present invention being connected by a longitudinal hydraulic cylinder driving a latch;

[0052] In the figure: unpowered hull 1, main crane 11, auxiliary crane 12, main deck 13, detachable railing 14, tower base 15, transverse hydraulic cylinder 21, positioning pin 22, positioning groove 23, ear seat 24, latch 25, anchor windlass 26, bollard 27, longitudinal hydraulic cylinder 28, sub-deck 4, detachable cargo board 42, fastening buckle 43, baffle 44, boom 5, U-shaped bracket 51, roller 6, drive motor 61, wire rope 62, hook 63, monitoring module 64, tower 7, positioning anchor 8, cable 9. DETAILED DESCRIPTION

[0053] Embodiment 1:

[0054] like Figure 1 As shown, a material supply equipment for offshore wind power project construction and operation and maintenance includes an unpowered hull 1, which includes a main deck 13 and multiple sub-decks 4. The main deck 13 and the multiple sub-decks 4 are connected and spliced ​​into a modular deck through a docking mechanism; the modular deck is connected with detachable railings 14 around; the upper surface of the main deck 13 is connected to a main crane 11 and multiple sub-cranes 12; the main crane 11 includes a tower base 15, and the top of the tower base 15 is connected to a slewing mechanism composed of a hydraulic cylinder and a bearing, the slewing mechanism is connected to a boom 5, and the front end of the boom 5 is connected to a windproof mechanism.

[0055] like Figure 8 As shown, the docking mechanism includes two sets of parallel horizontal hydraulic cylinders 21 connected to the surface of the main deck 13, and the telescopic ends of the horizontal hydraulic cylinders 21 are connected to positioning pins 22; the upper surface of the sub-deck 4 is provided with two corresponding sets of positioning grooves 23 that are plugged and matched with the positioning pins 22; one side of the main deck 13 and the sub-deck 4 is connected to two sets of ear seats 24, and the surface of the ear seats 24 is provided with through holes.

[0056] like Fig. 9 As shown, a longitudinal hydraulic cylinder 28 is vertically connected to the side wall of the main deck 13 directly below the ear seat 24, and a latch 25 is connected to the telescopic end of the longitudinal hydraulic cylinder 28 to pass through the through hole of the ear seat 24 to connect the main deck 13 and the sub-deck 4.

[0057] like Figure 6 and Figure 7 As shown, the docking mechanism includes a plurality of anchor machines 26 connected to the upper surface of the main deck 13 , one end of the anchor machine 26 is connected to the positioning point through the positioning anchor 8 , and the other end is connected to the mooring pile 27 connected to the upper surface of the sub-deck 4 through the cable 9 .

[0058] like Figure 2As shown, preferably, a plurality of bolt holes are evenly spaced on the surface of the main deck 13 and the sub-deck 4, which are bolted to the detachable cargo board 42 by bolts.

[0059] like Figure 3 As shown, preferably, the detachable cargo board 42 is a double-layer structure, the bottom layer is a flat layer of a stainless steel structure, and the upper layer is a flexible rubber layer; a plurality of bolt holes are evenly spaced on the surface of the detachable cargo board 42, and the bolt holes penetrate the rubber layer and the flat layer.

[0060] Preferably, the spacing between the bolt holes on the surface of the detachable cargo board 42 is smaller than the spacing between the bolt holes on the surface of the subdeck 4 , and the number of bolt holes on the surface of the detachable cargo board 42 is greater than the number of bolt holes on the surface of the subdeck 4 .

[0061] Preferably, a fastening buckle 43 is fixed to the surface of the detachable cargo board 42 by bolts, and the fastening buckle 43 is an elastic stainless steel sheet; holes are opened at both ends of the fastening buckle 43, and it is connected to the bolt holes on the surface of the detachable cargo board 42 by bolts.

[0062] Preferably, a baffle 44 is fixed to the surface of the detachable cargo board 42 by bolts. The baffle 44 is an L-shaped structure, and is fixed in the bolt holes on the surface of the detachable cargo board 42 by cooperating with the bolts through the bottom openings.

[0063] like Figure 4 As shown, preferably, the windproof mechanism includes four U-shaped brackets 51 arranged on the lower surface of the boom 5, and a roller 6 is rotatably connected between each U-shaped bracket 51, and the ends of the roller 6 are respectively connected to a driving motor 61.

[0064] Preferably, an annular groove is formed on the surface of the roller 6, and a group of steel wire cables 62 are wound in the annular groove. The bottom end of the steel wire cables 62 is connected to a hook 63 to be hung on the cargo to be lifted.

[0065] Preferably, a monitoring module 64 is connected to the lower surface of the boom 5, and the monitoring module 64 includes a PID controller and a CCD camera; the PID controller is electrically connected to the drive motor 61; the bottom end of each group of steel wire cables 62 is connected to an independent inclination sensor, and the CCD camera and the inclination sensor are electrically connected to the PID controller; the PID controller has a built-in wind resistance adjustment algorithm; the monitoring module 64 is located at the center of the four U-shaped brackets 51.

[0066] Furthermore, the inclination sensor uses a high-precision angle sensor with model RS-DIP-*-1.

[0067] Embodiment 2:

[0068] like Figure 5 As shown, a method for using material supply equipment for offshore wind power project construction and operation and maintenance includes the following steps:

[0069] S1, during the construction period of the offshore wind power project, a tugboat is used to tow the unpowered hull 1 to an anchorage near the wind farm where anchoring is allowed;

[0070] S2, using offshore deck barges to transport large wind power equipment and production tools and materials during the construction period from the shore dock to the unpowered hull 1:

[0071] After the offshore deck barge is berthed, the main crane 11 and the auxiliary crane 12 on the non-powered hull 1 are used to unload the large wind power equipment and production tools and materials onto the non-powered hull 1 and stack them;

[0072] S3, using deep sea deck barge to transport large wind power equipment and production tools and materials during the construction period from the unpowered hull 1 to the offshore wind power construction site:

[0073] After the deep-sea deck barge is berthed, the main crane 11 and the auxiliary crane 12 on the unpowered hull 1 are used to transfer the large wind power equipment and production tools and materials to the deep-sea deck barge, and then transport them to the wind power construction site;

[0074] S4, when the offshore deck barge and deep-sea deck barge have insufficient transport capacity, the unpowered hull 1 is towed to the dock, and after the large wind power equipment and production tools and materials are loaded on board, the unpowered hull is towed directly to the wind power construction site;

[0075] S5, during the operation and maintenance period of the offshore wind power project, a tugboat is used to tow the unpowered hull 1 to the wind power operation and maintenance position to berth the installation ship, and the main crane 11 and auxiliary crane 12 on the unpowered hull 1 are used to lift the large wind power equipment and production tools and materials disassembled from the installation ship to the modular deck of the unpowered hull 1, and then the tugboat is used to tow the unpowered hull 1 directly to the dock for unloading;

[0076] S6, when the large wind power equipment and production tools and materials to be transported exceed the carrying capacity of the main deck 13, the area of ​​the deck is increased by splicing the sub-deck 4:

[0077] The anchor windlass 26 of the main deck 13 is connected to the mooring pile 27 of the sub-deck 4 through the cable 9. The anchor windlass 26 is started to slowly pull the sub-deck 4 to the connection mechanism, and then the transverse hydraulic cylinder 21 is started to insert the two groups of positioning pins 22 into the two groups of positioning grooves 23 with a guiding function, so that the through holes of the ear seats 24 on the main deck 13 and the sub-deck 4 are coaxial; finally, the longitudinal hydraulic cylinder 28 is started to insert the pin 25 into the through hole of the ear seat 24, so as to realize the positioning docking of the main deck 13 and the sub-deck 4;

[0078] S7, for rolling equipment such as towers and hubs, select a detachable cargo board 42 of appropriate size and fix it on the deck area where the towers and hubs are to be stacked, then stack the rolling equipment such as towers and hubs on the surface of the detachable cargo board 42, install multiple baffles 44 around it for limiting, and fix it on the surface through multiple fastening buckles 43;

[0079] S8, during the lifting process of the main hoist 11, the load is lifted at four points through four steel wire cables 62; the monitoring module 64 executes the wind resistance adjustment algorithm through the PID controller, as follows:

[0080] S801, after the hook 63 is connected to the load, the four drive motors 61 simultaneously drive the four steel wire cables 62 on the four rollers 6 to rise synchronously;

[0081] S802, performing image recognition:

[0082] The CCD camera takes the vertical direction directly below as the coordinate origin and the four-point lifting positions on the load surface as the vertices to construct a plane rectangular coordinate system, draw a calibration rectangle, record the coordinates of the four vertex positions and the coordinates of the virtual edges of the calibration rectangle, and calculate the area S1 of the calibration rectangle;

[0083] S803, performing image offset detection:

[0084] During the lifting and transportation process, the CCD camera periodically collects the image data below, takes the current position of the four-point lifting position on the load surface as the vertex, draws a real-time rectangle, records the coordinates of the four vertex positions and the coordinates of the virtual edges of the real-time rectangle, and calculates the area S2 of the real-time rectangle that falls outside the calibration rectangle; calculates the image offset value S2 / S1, and if the image offset value S2 / S1 is greater than the threshold △S, it is determined to be a lifting offset, otherwise it is determined to be normal lifting;

[0085] S804, when it is determined that there is a hoisting deviation, the PID controller collects data from the inclination sensors of multiple wire cables 62 as the swing angle of each wire cable 62; the PID controller uses the rope length, the distance between the hanging points of the hook 63 and the swing angle as known data, calculates the elongation of the corresponding wire cable 62 through trigonometric functions, and converts the elongation into the rotation amount of the drive motor 61, and the PID controller issues a control instruction to adjust the corresponding wire cable 62 to contract or extend through the drive motor 61; the rope length data is obtained as follows: the number of rotations and the rotation angle are obtained through the encoder of the drive motor 61, and the rope length is calculated in combination with the diameter of the roller 6 and the height of the main hoist 11;

[0086] S805, looping through steps S803 and S804 until the lifting is determined to be normal;

[0087] S806, loop through steps S803 to S805 until the lifting is completed.

Claims

1. A material supply equipment for offshore wind power project construction and operation and maintenance, characterized in that: The invention comprises an unpowered hull (1), wherein the unpowered hull (1) comprises a main deck (13) and a plurality of sub-decks (4), wherein the main deck (13) and the plurality of sub-decks (4) are connected and spliced ​​into a modular deck via a docking mechanism; the docking mechanism comprises two groups of parallel transverse hydraulic cylinders (21) connected to the surface of the main deck (13), wherein the telescopic ends of the transverse hydraulic cylinders (21) are connected to positioning pins (22); the upper surfaces of the sub-decks (4) are provided with two corresponding groups of positioning grooves (23) which are plugged and matched with the positioning pins (22); the main deck (13) and the sub-decks ( 4) are connected to two sets of ear seats (24) on one side, and the surface of the ear seats (24) is provided with through holes; the side wall of the main deck (13) directly below the ear seats (24) is vertically connected to a longitudinal hydraulic cylinder (28), and the telescopic end of the longitudinal hydraulic cylinder (28) is connected to a latch (25) that passes through the through holes of the ear seats (24) to connect the main deck (13) and the sub-deck (4); the modular deck is connected to detachable railings (14) around; the upper surface of the main deck (13) is connected to a main crane (11) and a plurality of sub-cranes (12); the main crane (11) includes a tower seat (15), A slewing mechanism composed of a hydraulic cylinder and a bearing is connected to the top of the tower base (15), and the slewing mechanism is connected to the boom (5). The front end of the boom (5) is connected to a windproof mechanism. A plurality of bolt holes are evenly spaced on the surface of the main deck (13) and the sub-deck (4), and a detachable cargo board (42) is fixedly installed by bolts. The detachable cargo board (42) is a double-layer structure, wherein the bottom layer is a flat plate layer of a stainless steel structure, and the upper layer is a flexible rubber layer. A plurality of bolt holes are evenly spaced on the surface of the detachable cargo board (42), and the bolt holes penetrate the rubber layer and the flat plate layer. The spacing of the bolt holes on the surface of the plate (42) is smaller than the spacing of the bolt holes on the surface of the sub-deck (4); a fastening buckle (43) is fixed on the surface of the detachable cargo board (42) by bolts, and the fastening buckle (43) is an elastic stainless steel sheet; holes are opened at both ends of the fastening buckle (43) and connected to the bolt holes on the surface of the detachable cargo board (42) by bolts; a baffle (44) is fixed on the surface of the detachable cargo board (42) by bolts, and the baffle (44) is an L-shaped structure, and is fixed to the bolt holes of the detachable cargo board (42) by the bottom opening and the bolts.

2. The material supply equipment for offshore wind power project construction and operation and maintenance according to claim 1, characterized in that: The docking mechanism comprises a plurality of anchor windlasses (26) connected to the upper surface of the main deck (13); one end of the anchor windlasses (26) is connected to a positioning point on the main deck (13) via a positioning anchor (8), and the other end is connected to a mooring pile (27) connected to the upper surface of the sub-deck (4) via a cable (9).

3. The material supply equipment for offshore wind power project construction and operation and maintenance according to claim 1, characterized in that: The windproof mechanism comprises four U-shaped brackets (51) arranged on the lower surface of the suspension arm (5), and rollers (6) are rotatably connected between each of the U-shaped brackets (51), and the ends of the rollers (6) are respectively connected to a driving motor (61).

4. The material supply equipment for offshore wind power project construction and operation and maintenance according to claim 3, characterized in that: The roller (6) is provided with an annular groove on its surface. A group of steel wire cables (62) are wound in the annular groove. A hook (63) is connected to the bottom end of the steel wire cables (62) to be hung on the cargo to be lifted.

5. The material supply equipment for offshore wind power project construction and operation and maintenance according to claim 4, characterized in that: A monitoring module (64) is connected to the lower surface of the boom (5), and the monitoring module (64) includes a PID controller and a CCD camera; the PID controller is electrically connected to the drive motor (61); the bottom end of each set of steel wire cables (62) is connected to an independent tilt sensor, and the CCD camera and the tilt sensor are electrically connected to the PID controller; the PID controller has a built-in wind resistance adjustment algorithm; the monitoring module (64) is located at the center of the four U-shaped brackets (51).

6. The method for using the material supply equipment for offshore wind power project construction and operation and maintenance according to claim 5, characterized in that: The following steps are involved: S1, during the construction period of the offshore wind power project, a tugboat is used to tow the unpowered hull (1) to an anchorage near the wind farm where anchoring is allowed; S2, using offshore deck barges to transport large wind power equipment and production tools and materials during the construction period from the shore dock to the unpowered hull (1): After the offshore deck barge is berthed, the main crane (11) and the auxiliary crane (12) on the unpowered hull (1) are used to unload the large wind power equipment and production tools and materials onto the unpowered hull (1) and stack them; S3, using a deep sea deck barge to transport large wind power equipment and production tools and materials during the construction period from the unpowered hull (1) to the offshore wind power construction site: After the deep-sea deck barge is berthed, the main crane (11) and the auxiliary crane (12) on the unpowered hull (1) are used to transfer large wind power equipment and production tools and materials to the deep-sea deck barge, and then transport them to the wind power construction site; S4, when the offshore deck barge and deep-sea deck barge have insufficient transport capacity, the unpowered hull (1) is towed to the dock, and after the large wind power equipment and production tools and materials are loaded on board, the unpowered hull (1) is directly towed to the wind power construction site; S5, during the operation and maintenance period of the offshore wind power project, a tugboat is used to tow the unpowered hull (1) to the wind power operation and maintenance position and berth the installation ship, and the main crane (11) and auxiliary crane (12) on the unpowered hull (1) are used to lift the large wind power equipment and production tools and materials removed from the installation ship to the modular deck of the unpowered hull (1), and then the tugboat is used to tow the unpowered hull (1) directly to the dock for unloading; S6: When the large wind power equipment and production tools and materials to be transported exceed the carrying capacity of the main deck (13), the deck area is increased by splicing the sub-deck (4): The anchor windlass (26) of the main deck (13) is connected to the mooring pile (27) of the sub-deck (4) via the cable (9). The anchor windlass (26) is started to slowly pull the sub-deck (4) to the connection mechanism. Then, the transverse hydraulic cylinder (21) is started to insert two groups of positioning pins (22) into two groups of positioning grooves (23) having a guiding function, thereby achieving the coaxiality of the through holes of the ear seats (24) on the main deck (13) and the sub-deck (4). Finally, the longitudinal hydraulic cylinder (28) is started to insert the latch pin (25) into the through hole of the ear seat (24), thereby achieving the positioning docking of the main deck (13) and the sub-deck (4); S7, for rolling equipment such as towers and wheel hubs, a detachable cargo board (42) is fixed to a deck area where the rolling equipment such as towers and wheel hubs is to be stacked, and then the rolling equipment such as towers and wheel hubs are stacked on the surface of the detachable cargo board (42), multiple baffles (44) are installed around the board to limit the position, and the surface is fixed by multiple fastening buckles (43); S8, during the lifting process of the main hoist (11), the load is lifted at four points by four steel wire cables (62); the monitoring module (64) executes the wind resistance adjustment algorithm by the PID controller, as follows: S801, after the hook (63) is connected to the load, the four drive motors (61) simultaneously drive the four steel wire cables (62) on the four rollers (6) to rise synchronously; S802, performing image recognition: The CCD camera takes the vertical direction directly below as the coordinate origin and the four-point lifting positions on the load surface as the vertices to construct a plane rectangular coordinate system, draw a calibration rectangle, record the coordinates of the four vertex positions and the coordinates of the virtual edges of the calibration rectangle, and calculate the area S1 of the calibration rectangle; S803, performing image offset detection: During the lifting and transportation process, the CCD camera periodically collects the image data below, takes the current position of the four-point lifting position on the load surface as the vertex, draws a real-time rectangle, records the coordinates of the four vertex positions and the coordinates of the virtual edges of the real-time rectangle, and calculates the area S2 of the real-time rectangle that falls outside the calibration rectangle; Calculate the image offset value S2 / S1. If the image offset value S2 / S1 is greater than the threshold △S, it is determined to be a lifting offset. Otherwise, it is determined to be a normal lifting. S804, when it is determined that there is a lifting deviation, the PID controller collects data from the inclination sensors of the plurality of steel wire cables (62) as the swing angle of each steel wire cable (62); the PID controller calculates the elongation of the corresponding steel wire cable (62) by using the rope length, the distance between the hanging points of the hook (63) and the swing angle as known data, and converts the elongation into the rotation amount of the driving motor (61), and the PID controller issues a control instruction to adjust the corresponding steel wire cable (62) to contract or extend through the driving motor (61); wherein the rope length data is obtained as follows: the number of rotations and the rotation angle are obtained through the encoder provided by the driving motor (61), and the rope length is calculated in combination with the diameter of the roller (6) and the height of the main suspension (11); S805, looping through steps S803 and S804 until the lifting is determined to be normal; S806, loop through steps S803 to S805 until the lifting is completed.

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