Self-elevating dock and method for installing floating fan

Abstract

The self-elevating dock comprises a main ship body, a notch is formed in one side of the main ship body, a lifting platform is arranged below the main ship body, the lifting platform is arranged on the side, close to the notch, of the main ship body, a lifting device, pile legs, a crane and a platform lifting system are arranged on a deck of the main ship body, and the pile legs penetrate through the deck of the main ship body; the crane is connected to a deck of the main ship body and comprises a main crane and an auxiliary crane, the lifting platform moves in the vertical direction of the pile legs through the lifting device, the lifting platform is of a permeable structure, and the platform lifting system is connected with the lifting platform. A stable platform is provided for installation of the draught fan, static-to-static installation of the floating type draught fan is achieved, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to a self-elevating dock and a method for installing a floating wind turbine, belonging to the technical field of floating wind turbine installation. Background Art

[0002] There are two common methods for installing floating wind turbines. One is to temporarily moor the floating wind turbine foundation and use a floating crane or self-elevating platform to install the wind turbine. The other is to place the floating wind turbine foundation on the seabed (directly on the seabed) and then use a floating crane or self-elevating platform to install the wind turbine. In the former, the floating wind turbine foundation will inevitably shake when moored, so the wind turbine installation efficiency is relatively low. In the latter, the floating wind turbine foundation has very high requirements for water depth and surface geological conditions. In some cases, it is necessary to add artificial foundations or perform foundation treatment, which is time-consuming and labor-intensive, and the effect is not ideal. Summary of the invention

[0003] The purpose of the present invention is to provide a self-elevating dock and a method for installing a floating wind turbine. The present invention provides a stable platform for the installation of the wind turbine, realizes static-to-static installation of the floating wind turbine, and saves time and effort.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: a self-elevating dock, comprising a main hull, a notch is provided on one side of the main hull, a lifting platform is provided under the main hull, the lifting platform is placed on the side of the main hull close to the notch, a lifting device, pile legs, a crane and a platform lifting system are provided on the main hull deck, the pile legs run through the main hull deck, the crane is connected to the main hull deck, the crane comprises a main crane and an auxiliary crane, the lifting platform moves along the vertical direction of the pile legs through the lifting device, the lifting platform adopts a permeable structure, and the platform lifting system is connected to the lifting platform; the lifting platform moves along the vertical direction of the pile legs through the lifting device, which has a traction effect on the platform lifting system, and the lifting platform moves up and down along the rear two pile legs, the pile legs have a certain guiding effect on the lifting and lowering of the lifting platform, and the lifting platform adopts a permeable structure, after the lifting platform with a permeable structure is lowered to the water surface, the structure will not be unable to be lowered to a predetermined height due to the buoyancy of the structure.

[0005] In the aforementioned self-elevating dock, at least three pile legs are provided, two of which are arranged on both sides of the slot, and the pile legs on both sides of the slot also penetrate the lifting device, and pile shoes or suction cylinders are also installed at the bottom of the pile legs to make the self-elevating dock more stable.

[0006] The aforementioned self-elevating dock has a pause platform with the same shape and size as the slot in the middle of the lifting platform, and locking devices are provided on the inner side of the slot and the outer side of the pause platform. The locking device includes a latch assembly and a socket assembly. The latch assembly is placed on the inner side of the slot, and the socket assembly is placed on the outer side of the pause platform. The latch assembly and the socket assembly are plugged into each other.

[0007] The aforementioned self-elevating dock further includes a floating wind turbine foundation, which is arranged on a suspension platform, and the suspension platform is provided with a limiting groove with the same shape and size as the floating wind turbine foundation.

[0008] In the aforementioned self-elevating dock, the platform lifting system includes a winch, a guide device and a wire rope. The guide device is provided with a cable hole, and the wire rope connects the winch to the lifting platform through the cable hole.

[0009] In the aforementioned self-elevating dock, the platform lifting system further comprises a fixed pulley block and a movable pulley block, the steel wire rope is slidingly connected to the fixed pulley block and the movable pulley block respectively, and the fixed pulley block is connected to the guide device.

[0010] In the aforementioned self-elevating dock, blades, engine room, hub and tower are arranged on the main hull deck, and four sets of platform lifting systems are arranged, and the four sets of platform lifting systems are respectively connected to the four corners of the lifting platform.

[0011] The method for installing a floating wind turbine on a jack-up dock comprises the following steps:

[0012] S1, the jack-up dock is ready for use;

[0013] S2, lowering the lifting platform of the jack-up dock below the water surface;

[0014] S3, pulling the floating wind turbine foundation to the upper part of the lifting platform;

[0015] S4, raising the lifting platform of the jack-up dock, thereby driving the floating wind turbine foundation to rise to a predetermined height;

[0016] S5, locking the lifting platform of the jack-up dock by a locking device;

[0017] S6, the floating wind turbine foundation, blades, nacelle, hub and tower are installed statically by the crane on the jack-up dock;

[0018] S7, the floating wind turbine foundation is installed, the locking device is unlocked, and the lifting platform is lowered below the water surface;

[0019] S8, the installed floating wind turbine foundation is pulled away from the lifting platform.

[0020] The aforementioned method of installing a floating wind turbine on a self-elevating dock comprises the following steps: the lifting platform is raised and lowered by a platform lifting system; the winch rotates to vertically move the steel wire rope through a guide device; the steel wire rope vertically raises the lifting platform along the pile legs on both sides of the slot through a fixed pulley block and a movable pulley block; the deck of the lifting platform must be lower than the draft depth of the floating wind turbine foundation.

[0021] In the aforementioned method of installing a floating wind turbine on a self-elevating dock, the predetermined height is the height when the pin assembly on the inner side of the slot is aligned with the socket assembly on the outer side of the pause platform. The floating wind turbine foundation is towed and paused on the pause platform by a tugboat. A limiting groove with the same shape and size as the floating wind turbine foundation is provided on the pause platform. The limiting groove prevents the floating wind turbine foundation from being displaced and causing danger when it rises with the lifting platform.

[0022] Compared with the prior art, the present invention is beneficial in that:

[0023] 1. The present invention provides a stable platform for wind turbine installation, realizing static-to-static installation of floating wind turbines;

[0024] 2. The present invention has strong adaptability to sea areas and provides new possibilities for the installation of floating wind turbines;

[0025] 3. The present invention has high installation efficiency and good operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention (when four pile legs are provided);

[0027] Figure 2 yes Figure 1 Cross-section of the middle AA;

[0028] Figure 3 yes Figure 1 Cross-section of the middle BB;

[0029] Figure 4 It is a top view of the present invention after the fan assembly is mounted (when four legs are provided);

[0030] Figure 5 It is a schematic diagram of the positional relationship between the main hull, pile legs, latch assembly, and socket assembly of the present invention (when four pile legs are provided);

[0031] Figure 6 yes Figure 5 Cross-section of the middle CC;

[0032] Figure 7 yes Figure 6 A magnified view of middle;

[0033] Figure 8 yes Figure 7Cross-section of the middle DD;

[0034] Fig. 9 It is a top view of the tugboat towing the floating wind turbine foundation in the present invention;

[0035] Fig.10 It is a schematic diagram of the structure of step S1 when the present invention is working;

[0036] Fig.11 It is a structural schematic diagram of step S2 when the present invention is working;

[0037] Fig.12 It is a structural schematic diagram of step S3 when the present invention is working;

[0038] Fig.13 It is a structural schematic diagram of step S4 when the present invention is working;

[0039] Fig.14 It is a structural schematic diagram of step S5 when the present invention is working;

[0040] Fig.15 It is a structural schematic diagram of step S6 when the present invention is working;

[0041] Fig.16 It is a structural schematic diagram of step S7 when the present invention is working;

[0042] Fig.17 It is a structural schematic diagram of step S8 when the present invention is working;

[0043] Fig.18 It is a schematic diagram of the structure when the present invention is provided with three pile legs;

[0044] Fig.19 It is a top view of the present invention when three pile legs are arranged.

[0045] Figure numerals: 1-main hull, 2-slot, 3-lifting platform, 4-lifting device, 5-pile legs, 6-crane, 7-platform lifting system, 8-pause platform, 9-latch assembly, 10-socket assembly, 11-floating wind turbine foundation, 12-tugboat, 13-winch, 14-guide device, 15-wire rope, 16-cable hole, 17-fixed pulley block, 18-movable pulley block, 19-blade, 20-nacelle, 21-hub, 22-tower.

[0046] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0047] Embodiment 1 of the present invention: A self-elevating dock comprises a main hull 1, a notch 2 is arranged on one side of the main hull 1, a lifting platform 3 is arranged below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the notch 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are arranged on the deck of the main hull 1, the pile legs 5 pass through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 comprises a main crane and an auxiliary crane, the lifting platform 3 moves in the vertical direction along the pile legs 5 through the lifting device 4, the lifting platform 3 adopts a permeable structure, and the platform lifting system 7 is connected to the lifting platform 3.

[0048] Embodiment 2 of the present invention: A self-elevating dock comprises a main hull 1, a slot 2 is arranged on one side of the main hull 1, a lifting platform 3 is arranged below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the slot 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are arranged on the deck of the main hull 1, the pile legs 5 pass through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 includes a main crane and an auxiliary crane, the lifting platform 3 moves in the vertical direction along the pile legs 5 through the lifting device 4, the lifting platform 3 adopts a permeable structure, and the platform lifting system 7 is connected to the lifting platform 3; at least three pile legs 5 are arranged, two of which are arranged on both sides of the slot 2, and the pile legs 5 on both sides of the slot 2 also pass through the lifting device 4.

[0049] Embodiment 3 of the present invention: A self-elevating dock comprises a main hull 1, a notch 2 is provided on one side of the main hull 1, a lifting platform 3 is provided below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the notch 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are provided on the deck of the main hull 1, the pile legs 5 run through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 comprises a main crane and an auxiliary crane, the lifting platform 3 moves vertically along the pile legs 5 through the lifting device 4, and the lifting platform 3 adopts a permeable structure , the platform lifting system 7 is connected to the lifting platform 3; at least three pile legs 5 are provided, two of which are arranged on both sides of the slot 2, and the pile legs 5 on both sides of the slot 2 also penetrate the lifting device 4; a pause platform 8 with the same shape and size as the slot 2 is provided in the middle of the lifting platform 3, and a locking device is provided on the inner side of the slot 2 and the outer side of the pause platform 8, and the locking device includes a latch assembly 9 and a socket assembly 10, the latch assembly 9 is placed on the inner side of the slot 2, and the socket assembly 10 is placed on the outer side of the pause platform 8, and the latch assembly 9 is plug-connected with the socket assembly 10.

[0050] Embodiment 4 of the present invention: A self-elevating dock comprises a main hull 1, a notch 2 is arranged on one side of the main hull 1, a lifting platform 3 is arranged below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the notch 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are arranged on the deck of the main hull 1, the pile legs 5 run through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 includes a main crane and an auxiliary crane, the lifting platform 3 moves vertically along the pile legs 5 through the lifting device 4, the lifting platform 3 adopts a permeable structure, and the platform lifting system 7 is connected to the lifting platform 3 ; There are at least three pile legs 5, two of which are arranged on both sides of the slot 2, and the pile legs 5 on both sides of the slot 2 also penetrate the lifting device 4; a pause platform 8 with the same shape and size as the slot 2 is arranged in the middle of the lifting platform 3, and a locking device is arranged on the inner side of the slot 2 and the outer side of the pause platform 8, the locking device includes a latch assembly 9 and a socket assembly 10, the latch assembly 9 is placed on the inner side of the slot 2, the socket assembly 10 is placed on the outer side of the pause platform 8, and the latch assembly 9 is plug-connected with the socket assembly 10; it also includes a floating wind turbine foundation 11, and the floating wind turbine foundation 11 is arranged on the pause platform 8.

[0051] Embodiment 5 of the present invention: A self-elevating dock comprises a main hull 1, a notch 2 is arranged on one side of the main hull 1, a lifting platform 3 is arranged below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the notch 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are arranged on the deck of the main hull 1, the pile legs 5 run through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 includes a main crane and an auxiliary crane, the lifting platform 3 moves vertically along the pile legs 5 through the lifting device 4, the lifting platform 3 adopts a permeable structure, and the platform lifting system 7 is connected to the lifting platform 3; at least three pile legs 5 are arranged, two of which are arranged on both sides of the notch 2, and the notch 2 The pile legs 5 on both sides also pass through the lifting device 4; a pause platform 8 with the same shape and size as the slot 2 is arranged in the middle of the lifting platform 3, and a locking device is arranged on the inner side of the slot 2 and the outer side of the pause platform 8, and the locking device includes a latch assembly 9 and a socket assembly 10, the latch assembly 9 is placed on the inner side of the slot 2, and the socket assembly 10 is placed on the outer side of the pause platform 8, and the latch assembly 9 is plugged and connected with the socket assembly 10; it also includes a floating wind turbine foundation 11, and the floating wind turbine foundation 11 is arranged on the pause platform 8; the platform lifting system 7 includes a winch 13, a guide device 14 and a wire rope 15, and a cable hole 16 is arranged on the guide device 14, and the wire rope 15 connects the winch 13 with the lifting platform 3 through the cable hole 16.

[0052] Embodiment 6 of the present invention: A self-elevating dock comprises a main hull 1, a notch 2 is arranged on one side of the main hull 1, a lifting platform 3 is arranged below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the notch 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are arranged on the deck of the main hull 1, the pile legs 5 run through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 includes a main crane and an auxiliary crane, the lifting platform 3 moves vertically along the pile legs 5 through the lifting device 4, the lifting platform 3 adopts a water-permeable structure, and the platform lifting system 7 is connected to the lifting platform 3; at least three pile legs 5 are arranged, two of which are arranged on both sides of the notch 2, and the pile legs 5 on both sides of the notch 2 also run through the lifting device 4; a pile leg 5 in the middle of the lifting platform 3 is arranged in the shape of the notch 2 The platform 8 has the same shape and size, and a locking device is provided on the inner side of the slot 2 and the outer side of the platform 8. The locking device includes a latch assembly 9 and a socket assembly 10. The latch assembly 9 is placed on the inner side of the slot 2, and the socket assembly 10 is placed on the outer side of the platform 8. The latch assembly 9 is plugged into the socket assembly 10. It also includes a floating wind turbine foundation 11, which is arranged on the pause platform 8; the platform lifting system 7 includes a winch 13, a guide device 14 and a wire rope 15. The guide device 14 is provided with a cable hole 16, and the wire rope 15 connects the winch 13 to the lifting platform 3 through the cable hole 16; the platform lifting system 7 also includes a fixed pulley block 17 and a movable pulley block 18. The wire rope 15 is slidably connected to the fixed pulley block 17 and the movable pulley block 18 respectively, and the fixed pulley block 17 is connected to the guide device 14.

[0053] Embodiment 7 of the present invention: A self-elevating dock comprises a main hull 1, a notch 2 is arranged on one side of the main hull 1, a lifting platform 3 is arranged below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the notch 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are arranged on the deck of the main hull 1, the pile legs 5 run through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 includes a main crane and an auxiliary crane, the lifting platform 3 moves vertically along the pile legs 5 through the lifting device 4, the lifting platform 3 adopts a water-permeable structure, and the platform lifting system 7 is connected to the lifting platform 3; at least three pile legs 5 are arranged, two of which are arranged on both sides of the notch 2, and the pile legs 5 on both sides of the notch 2 also run through the lifting device 4; a pause platform 8 with the same shape and size as the notch 2 is arranged in the middle of the lifting platform 3, and a locking device is arranged on the inner side of the notch 2 and the outer side of the pause platform 8, and the locking device The device includes a latch assembly 9 and a socket assembly 10, the latch assembly 9 is placed on the inner side of the slot 2, the socket assembly 10 is placed on the outer side of the pause platform 8, and the latch assembly 9 is plugged and connected with the socket assembly 10; it also includes a floating wind turbine foundation 11, and the floating wind turbine foundation 11 is arranged on the pause platform 8; the platform lifting system 7 includes a winch 13, a guide device 14 and a wire rope 15, and the guide device 14 is provided with a cable hole 16, and the wire rope 15 connects the winch 13 with the lifting platform 3 through the cable hole 16; the platform lifting system 7 also includes a fixed pulley group 17 and a movable pulley group 18, the wire rope 15 is respectively slidably connected with the fixed pulley group 17 and the movable pulley group 18, and the fixed pulley group 17 is connected to the guide device 14; the deck of the main hull 1 is provided with blades 19, a cabin 20, a hub 21 and a tower 22, and the platform lifting system 7 is provided with four groups, and the four groups of platform lifting systems 7 are respectively connected to the four corners of the lifting platform 3.

[0054] Embodiment 8 of the present invention: Fig.18 , 19A self-elevating dock is shown, comprising a main hull 1, a notch 2 is provided on one side of the main hull 1, a lifting platform 3 is provided below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the notch 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are provided on the deck of the main hull 1, the pile legs 5 run through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 includes a main crane and an auxiliary crane, the lifting platform 3 moves vertically along the pile legs 5 through the lifting device 4, the lifting platform 3 adopts a water-permeable structure, and the platform lifting system 7 is connected to the lifting platform 3; three pile legs 5 are provided, two of which are arranged on both sides of the notch 2, and the pile legs 5 on both sides of the notch 2 also run through the lifting device 4; a pause platform 8 with the same shape and size as the notch 2 is provided in the middle of the lifting platform 3, and a locking device is provided on the inner side of the notch 2 and the outer side of the pause platform 8, and the locking device includes A latch assembly 9 and a socket assembly 10, wherein the latch assembly 9 is placed on the inner side of the slot 2, and the socket assembly 10 is placed on the outer side of the pause platform 8, and the latch assembly 9 is plugged and connected with the socket assembly 10; it also includes a floating wind turbine foundation 11, and the floating wind turbine foundation 11 is arranged on the pause platform 8; the platform lifting system 7 includes a winch 13, a guide device 14 and a wire rope 15, and the guide device 14 is provided with a cable hole 16, and the wire rope 15 connects the winch 13 with the lifting platform 3 through the cable hole 16; the platform lifting system 7 also includes a fixed pulley block 17 and a movable pulley block 18, and the wire rope 15 is respectively slidably connected with the fixed pulley block 17 and the movable pulley block 18, and the fixed pulley block 17 is connected with the guide device 14; blades 19, a cabin 20, a hub 21 and a tower 22 are arranged on the deck of the main hull 1, and the platform lifting system 7 is provided with four groups, and the four groups of platform lifting systems 7 are respectively connected to the four corners of the lifting platform 3.

[0055] Embodiment 9 of the present invention: Figure 1 , 2A self-elevating dock is shown, comprising a main hull 1, a notch 2 is provided on one side of the main hull 1, a lifting platform 3 is provided below the main hull 1, the lifting platform 3 is placed on the side of the main hull 1 close to the notch 2, a lifting device 4, pile legs 5, a crane 6 and a platform lifting system 7 are provided on the deck of the main hull 1, the pile legs 5 run through the deck of the main hull 1, the crane 6 is connected to the deck of the main hull 1, the crane 6 includes a main crane and an auxiliary crane, the lifting platform 3 moves vertically along the pile legs 5 through the lifting device 4, the lifting platform 3 adopts a permeable structure, and the platform lifting system 7 is connected to the lifting platform 3; four pile legs 5 are provided, two of which are arranged on both sides of the notch 2, and the pile legs 5 on both sides of the notch 2 also run through the lifting device 4; a pause platform 8 with the same shape and size as the notch 2 is provided in the middle of the lifting platform 3, and a locking device is provided on the inner side of the notch 2 and the outer side of the pause platform 8, and the locking device includes A latch assembly 9 and a socket assembly 10, wherein the latch assembly 9 is placed on the inner side of the slot 2, and the socket assembly 10 is placed on the outer side of the pause platform 8, and the latch assembly 9 is plugged and connected with the socket assembly 10; it also includes a floating wind turbine foundation 11, and the floating wind turbine foundation 11 is arranged on the pause platform 8; the platform lifting system 7 includes a winch 13, a guide device 14 and a wire rope 15, and the guide device 14 is provided with a cable hole 16, and the wire rope 15 connects the winch 13 with the lifting platform 3 through the cable hole 16; the platform lifting system 7 also includes a fixed pulley block 17 and a movable pulley block 18, and the wire rope 15 is respectively slidably connected with the fixed pulley block 17 and the movable pulley block 18, and the fixed pulley block 17 is connected with the guide device 14; blades 19, a cabin 20, a hub 21 and a tower 22 are arranged on the deck of the main hull 1, and the platform lifting system 7 is provided with four groups, and the four groups of platform lifting systems 7 are respectively connected to the four corners of the lifting platform 3.

[0056] Embodiment 10 of the present invention: A method for installing a floating wind turbine on a jack-up dock, comprising the following steps:

[0057] S1, the jack-up dock is ready for use;

[0058] S2, lowering the lifting platform 3 of the jack-up dock below the water surface;

[0059] S3, pulling the floating wind turbine foundation 11 to the upper part of the lifting platform 3;

[0060] S4, raising the lifting platform 3 of the jack-up dock, thereby driving the floating wind turbine foundation 11 to rise to a predetermined height;

[0061] S5, locking the lifting platform 3 of the jack-up dock by a locking device;

[0062] S6, the floating wind turbine foundation 11, the blades 19, the nacelle 20, the hub 21 and the tower 22 are installed by the crane 6 on the jack-up dock;

[0063] S7, the floating wind turbine foundation 11 is installed, the locking device is unlocked, and the lifting platform 3 is lowered below the water surface;

[0064] S8, the installed floating wind turbine foundation 11 is pulled away from the lifting platform 3.

[0065] Embodiment 11 of the present invention: A method for installing a floating wind turbine on a jack-up dock, comprising the following steps:

[0066] S1, the jack-up dock is ready for use;

[0067] S2, lowering the lifting platform 3 of the jack-up dock below the water surface;

[0068] S3, pulling the floating wind turbine foundation 11 to the upper part of the lifting platform 3;

[0069] S4, raising the lifting platform 3 of the jack-up dock, thereby driving the floating wind turbine foundation 11 to rise to a predetermined height;

[0070] S5, locking the lifting platform 3 of the jack-up dock by a locking device;

[0071] S6, the floating wind turbine foundation 11, the blades 19, the nacelle 20, the hub 21 and the tower 22 are installed by the crane 6 on the jack-up dock;

[0072] S7, the floating wind turbine foundation 11 is installed, the locking device is unlocked, and the lifting platform 3 is lowered below the water surface;

[0073] S8, the installed floating wind turbine foundation 11 is pulled away from the lifting platform 3;

[0074] The lifting platform 3 is raised and lowered by the platform lifting system 7, the winch 13 rotates through the guide device 14 to change the wire rope 15 into a vertical state, and the wire rope 15 passes through the fixed pulley group 17 and the movable pulley group 18 to vertically raise the lifting platform 3 along the pile legs 5 on both sides of the slot 2.

[0075] Embodiment 12 of the present invention: A method for installing a floating wind turbine on a jack-up dock, comprising the following steps:

[0076] S1, the jack-up dock is ready for use;

[0077] S2, lowering the lifting platform 3 of the jack-up dock below the water surface;

[0078] S3, pulling the floating wind turbine foundation 11 to the upper part of the lifting platform 3;

[0079] S4, raising the lifting platform 3 of the jack-up dock, thereby driving the floating wind turbine foundation 11 to rise to a predetermined height;

[0080] S5, locking the lifting platform 3 of the jack-up dock by a locking device;

[0081] S6, the floating wind turbine foundation 11, the blades 19, the nacelle 20, the hub 21 and the tower 22 are installed by the crane 6 on the jack-up dock;

[0082] S7, the floating wind turbine foundation 11 is installed, the locking device is unlocked, and the lifting platform 3 is lowered below the water surface;

[0083] S8, the installed floating wind turbine foundation 11 is pulled away from the lifting platform 3;

[0084] Among them, the lifting platform 3 is raised and lowered by the platform lifting system 7, the winch 13 rotates through the guide device 14 to change the wire rope 15 into a vertical state, and the wire rope 15 vertically rises the lifting platform 3 along the pile legs 5 on both sides of the slot 2 through the fixed pulley group 17 and the movable pulley group 18; the predetermined height is the height when the pin assembly 9 on the inside of the slot 2 is aligned with the socket assembly 10 on the outside of the pause platform 8, and the floating wind turbine foundation 11 is towed by the tugboat 12 and paused on the limit groove of the pause platform 8.

[0085] Working principle of an embodiment of the present invention: When the present invention works, Figure 10-17 As shown, after the jack-up dock is ready, the lifting platform 3 of the jack-up dock is lowered below the water surface. At this time, the floating wind turbine foundation 11 is pulled to the upper part of the lifting platform 3. After the floating wind turbine foundation 11 is parked on the limit groove of the suspension platform 8, the lifting platform 3 of the jack-up dock is lifted, thereby driving the floating wind turbine foundation 11 to rise to the deck elevation of the main hull 1, and the pin assembly 9 on the inner side of the notch 2 is aligned with the socket assembly 10 on the outer side of the suspension platform 8. The jack-up dock is lifted. The lifting platform 3 of the dock is locked by a locking device, and the latch assembly 9 is connected with the socket assembly 10 for locking; the floating wind turbine foundation 11, the blades 19, the nacelle 20, the hub 21 and the tower 22 are installed statically by the crane 6 on the self-elevating dock; after the installation of the floating wind turbine foundation 11, the locking device is unlocked, the latch assembly 9 and the socket assembly 10 are unlocked, and the lifting platform 3 is lowered below the water surface; the installed floating wind turbine foundation 11 is towed away from the lifting platform 3.

Claims

1. A jack-up dock, comprising a main hull (1), characterized in that: A notch (2) is provided on one side of the main hull (1), and a lifting platform (3) is provided below the main hull (1). The lifting platform (3) is placed on a side of the main hull (1) close to the notch (2). A lifting device (4), pile legs (5), a crane (6) and a platform lifting system (7) are provided on the deck of the main hull (1). The pile legs (5) pass through the deck of the main hull (1), and the crane (6) is connected to the deck of the main hull (1). The crane (6) includes a main crane and an auxiliary crane. The lifting platform (3) moves in a vertical direction along the pile legs (5) through the lifting device (4). The lifting platform (3) adopts a water-permeable structure, and the platform lifting system (7) is connected to the lifting platform (3).

2. A jack-up dock according to claim 1, characterized in that: At least three pile legs (5) are provided, of which two pile legs (5) are arranged on both sides of the slot (2), and the pile legs (5) on both sides of the slot (2) also penetrate the lifting device (4).

3. The self-elevating dock according to claim 1, characterized in that: A pause platform (8) having the same shape and size as the slot (2) is arranged in the middle of the lifting platform (3); a locking device is arranged on the inner side of the slot (2) and the outer side of the pause platform (8); the locking device comprises a latch assembly (9) and a socket assembly (10); the latch assembly (9) is arranged on the inner side of the slot (2), the socket assembly (10) is arranged on the outer side of the pause platform (8), and the latch assembly (9) and the socket assembly (10) are plug-connected.

4. A jack-up dock according to claim 3, characterized in that: It also comprises a floating wind turbine foundation (11), wherein the floating wind turbine foundation (11) is arranged on the suspension platform (8).

5. The self-elevating dock according to claim 1, characterized in that: The platform lifting system (7) comprises a winch (13), a guide device (14) and a steel wire rope (15); the guide device (14) is provided with a cable hole (16); the steel wire rope (15) connects the winch (13) with the lifting platform (3) through the cable hole (16).

6. The self-elevating dock according to claim 6, characterized in that: The platform lifting system (7) further comprises a fixed pulley block (17) and a movable pulley block (18), the steel wire rope (15) is respectively slidably connected to the fixed pulley block (17) and the movable pulley block (18), and the fixed pulley block (17) is connected to the guide device (14).

7. The self-elevating dock according to claim 1, characterized in that: The deck of the main hull (1) is provided with blades (19), a cabin (20), a hub (21) and a tower (22); four groups of platform lifting systems (7) are provided, and the four groups of platform lifting systems (7) are respectively connected to the four corners of the lifting platform (3).

8. A method for installing a floating wind turbine using a self-elevating dock according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, the jack-up dock is ready for use; S2, lowering the lifting platform (3) of the jack-up dock below the water surface; S3, pulling the floating wind turbine foundation (11) to the upper part of the lifting platform (3); S4, raising the lifting platform (3) of the jack-up dock, thereby driving the floating wind turbine foundation (11) to rise to a predetermined height; S5, locking the lifting platform (3) of the jack-up dock by a locking device; S6, using a crane (6) on the jack-up dock to statically install the floating wind turbine foundation (11) with the blades (19), the nacelle (20), the hub (21) and the tower (22); S7, the floating wind turbine foundation (11) is installed, the locking device is unlocked, and the lifting platform (3) is lowered below the water surface; S8, the installed floating wind turbine foundation (11) is pulled away from the lifting platform (3).

9. The method for installing a floating wind turbine on a jack-up dock according to claim 8, characterized in that: The lifting platform (3) is raised and lowered by a platform lifting system (7), the winch (13) rotates through a guide device (14) to change the steel wire rope (15) into a vertical state, and the steel wire rope (15) passes through a fixed pulley block (17) and a movable pulley block (18) to vertically raise the lifting platform (3) along the pile legs (5) on both sides of the slot (2).

10. The method for installing a floating wind turbine on a jack-up dock according to claim 8, characterized in that: The predetermined height is the height when the latch assembly (9) inside the slot (2) is aligned with the socket assembly (10) outside the pause platform (8), and the floating wind turbine foundation (11) is towed by the tugboat (12) and paused on the pause platform (8).

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