Integrated mechanical construction vessel and wind turbine construction method based on the construction vessel

Abstract

The present invention belongs to the technical field of offshore wind power foundations, and discloses an integrated mechanical construction vessel and a wind power unit construction method based on the construction vessel. The integrated mechanical construction vessel includes a slide rail laid on the deck surface of the integrated mechanical construction vessel and arranged along the length direction of the hull, and a transporting pallet is arranged on the slide rail; a lifting mechanism and a lifting device are provided at the stern of the integrated mechanical construction vessel, and the transporting pallet is fixed by a fixed support when the deck and the lifting mechanism are in place; the above-mentioned integrated mechanical construction vessel can complete the transportation and on-site installation and recovery construction operations of multiple multi-tube jacket foundation wind power units, which can save ship resources, and the transportation, installation and recovery processes are integrated and highly coordinated, effectively controlling the buoyancy and stability during sinking and recovery, reducing construction difficulty, shortening construction period, and reducing construction costs, thereby opening up a new form of transportation, installation and recovery construction of offshore wind power units.

Description

Technical Field

[0001] The present invention belongs to the technical field of offshore wind power foundations, and in particular relates to an integrated mechanical construction vessel and a wind power complete machine construction method based on the construction vessel. Background Art

[0002] With the continuous development of wind energy resources, offshore wind turbines are becoming increasingly large. Traditional transportation, installation, and recovery methods, due to limitations such as draft depth and lifting height, are increasingly unable to meet the development trend of offshore wind turbines, slowing the development of the wind power industry. Traditional offshore wind turbine transportation, installation, and recovery processes have the following main shortcomings:

[0003] 1. Complete wind turbines cannot be transported. Multiple large transport ships are required to transport wind turbine components in sections to designated sea areas and assemble them on-site offshore, which greatly increases construction time and difficulty and easily leads to delays.

[0004] 2. A large lifting device is required. The transport ship and the lifting device will move relative to each other during the construction process. The coupling effect generated during the lifting process will greatly increase the difficulty and danger of the lifting;

[0005] 3. Automatic integrated sinking installation cannot be achieved, and large-scale piling and grouting facilities and equipment are required to ensure the bearing capacity and stability requirements of the wind turbine foundation, which greatly increases construction time and cost;

[0006] 4. Efficient recycling cannot be achieved, and the original wind turbine foundation cannot be relocated after recycling. The original site is greatly disturbed and the risk of secondary utilization is high.

[0007] Offshore wind energy, with its advantages of high and stable wind speeds and its lack of land occupation, has become a trend and focus of current wind energy development. However, while establishing offshore wind farms presents significant advantages, they also bring with them some unavoidable challenges. One of these is that the construction costs of offshore wind farms are significantly higher than those of onshore wind turbines. Therefore, reducing the cost of offshore wind farm construction is crucial to the development of offshore wind turbines. Summary of the Invention

[0008] The present invention aims to solve the relevant technical problems of offshore wind turbine construction. It provides an integrated mechanical construction vessel and a wind turbine construction method based on the construction vessel, which can ensure the safety, economy, and degree of automation of the transportation, installation and recovery process of offshore wind turbines, reduce the difficulty and time of offshore construction, and realize the secondary efficient utilization of wind turbines and wind farms; the integrated mechanical construction vessel can be used to complete the transportation and on-site installation and recovery construction operations of multiple multi-tube jacket foundation wind turbines, which not only saves ship resources and shortens the construction period of offshore installation, but also greatly reduces the cost of offshore installation.

[0009] In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

[0010] According to one aspect of the present invention, there is provided an integrated mechanical construction vessel, comprising:

[0011] The slide rail is laid on the deck surface of the integrated mechanical construction vessel and is arranged along the length direction of the integrated mechanical construction vessel;

[0012] A carrying trolley, matched with the slide rail, capable of moving linearly along the slide rail;

[0013] A lifting mechanism is provided at the stern of the integrated mechanical construction vessel; the lifting mechanism includes a lifting panel that can be raised and lowered relative to the deck, and when the lifting panel is in the highest position, the slide rail on the surface of the lifting panel docks with the slide rail on the deck;

[0014] A fixed support, used to limit and fix the transporting trolley when the deck and the lifting mechanism are in place;

[0015] The lifting device is installed at the stern of the integrated mechanical construction vessel.

[0016] Furthermore, the integrated mechanical construction vessel is used to transport, install and / or recover the multi-tube jacket foundation wind turbine, the transporting flatbed is used to carry the multi-tube jacket foundation wind turbine, and the lifting device is used to lift the multi-tube jacket foundation wind turbine.

[0017] Furthermore, the slide rail is laid on one side of the deck, and the lifting device is arranged on the other side of the deck.

[0018] Furthermore, the highest position of the lifting panel is flush with the deck, and the lowest position of the lifting panel is determined according to the set depth of the multi-tube jacket foundation wind turbine.

[0019] Furthermore, the transport cart includes a transport panel, at least two groups of rollers are installed on the lower part of the transport panel, each group of rollers is connected with a through-hole shaft, and the through-hole shaft is equipped with a motor; the through-hole shaft is driven by the motor to drive the rollers to rotate, so that the transport cart moves in a straight line along the slide rail.

[0020] Furthermore, the fixed supports are provided in multiple groups, and the two fixed supports in each group are arranged on both sides of the slide rail, and each fixed support is provided with a positioning through hole; when the transport cart is in place on the deck and the elevator, the positioning through hole of the fixed support is coaxial with the through hole axis of the transport cart, and the transport cart can be limited and fixed by inserting the positioning through hole and the through hole axis in sequence through anchor bolts.

[0021] Furthermore, the carrying panel is provided with a clamping device for fixing the multi-tube jacket foundation wind turbine.

[0022] According to another aspect of the present invention, a method for constructing a wind turbine with a multi-tube jacket foundation based on the above-mentioned integrated mechanical construction vessel is provided, wherein the transportation and installation process includes:

[0023] (1) Carrying out the loading operation of at least one multi-tube jacket foundation wind turbine on the integrated mechanical construction vessel;

[0024] (2) The integrated mechanical construction vessel travels to the designated sea area;

[0025] (3) Starting from the carrier truck closest to the lifting mechanism, the multi-tube jacket foundation wind turbines are installed in sequence; the installation process of each multi-tube jacket foundation wind turbine is as follows:

[0026] Release the fixed support on the deck from limiting the position of the transporting trolley. When the lifting panel is in the highest position, move the transporting trolley carrying the wind turbine with a multi-tube jacket foundation to be installed to the lifting panel. Use the fixed support on the lifting panel to limit and fix the transporting trolley carrying the wind turbine with a multi-tube jacket foundation.

[0027] Connecting the hook of the lifting device to the lifting lug of the multi-tube jacket foundation wind turbine;

[0028] The lifting panel is lowered by the lifting mechanism until the multi-tube jacket rack foundation wind turbine reaches a set depth, and the ventilation / water holes provided on the top cover of each suction tube of the multi-tube jacket rack foundation wind turbine are closed; the fixing of the multi-tube jacket rack foundation wind turbine by the transporting flatbed truck is released; wherein the set depth is the depth of the multi-tube jacket rack foundation wind turbine where the volume of gas inside the suction tube accounts for 10%-30% of the volume of the suction tube;

[0029] The multi-tube jacket foundation wind turbine is towed from above the lifting panel to the rear stern of the integrated mechanical construction vessel by the lifting device;

[0030] The multi-tube jacket foundation wind turbine sinks to a designated position under negative pressure after its own weight, and the soil inside the suction tube is reinforced under negative pressure;

[0031] The connection between the lifting device and the multi-tube jacket foundation wind turbine is released.

[0032] Furthermore, the loading operation includes:

[0033] The integrated mechanical construction vessel is moored at a designated work dock, which is provided with a track capable of connecting with the lifting panel, and the transporting pallet truck is pre-installed on the track;

[0034] Use an onshore crane to hoist the multi-tube jacket foundation wind turbine onto the transport vehicle, and then fix the multi-tube jacket foundation wind turbine on the transport vehicle;

[0035] The transporting pallet transports the multi-tube jacket foundation wind turbine from the designated working dock along the track and the slide rail to the designed parking position on the deck of the integrated mechanical construction vessel, and the transporting pallet is limited and fixed by the fixed support on the deck.

[0036] According to another aspect of the present invention, a method for constructing a wind turbine with a multi-tube jacket foundation based on the above-mentioned integrated mechanical construction vessel is provided, wherein the recovery process includes:

[0037] (1) The integrated mechanical construction vessel travels to the designated sea area and adjusts the position of the integrated mechanical construction vessel so that the multi-tube jacket foundation wind turbine to be recovered is located below the rear of the vessel;

[0038] Using the lifting mechanism to adjust the lifting panel to the lowest position, and fixing the transporting trolley via the fixing support on the lifting panel;

[0039] Connecting the hook of the lifting device to the lifting lug of the multi-tube jacket foundation wind turbine;

[0040] (2) injecting water through the ventilation / water holes provided on the top cover of the suction tube to lift the multi-tube jacket frame foundation wind turbine complete machine, opening the ventilation / water holes after the suction tube is completely unearthed, and using the lifting device to lift the multi-tube jacket frame foundation wind turbine complete machine to a set depth;

[0041] (3) Using the lifting device, the multi-tube jacket foundation wind turbine is pulled from the rear of the stern to above the lifting panel;

[0042] (4) The multi-tube jacket foundation wind turbine is fixedly connected to the transporting trolley fixed on the lifting panel;

[0043] (5) The lifting mechanism is used to adjust the lifting panel to the highest position, and the transporting trolley carrying the multi-tube jacket foundation wind turbine is moved along the slide rail to the designed parking position of the deck.

[0044] The beneficial effects of the present invention are:

[0045] The integrated mechanical construction vessel and the wind turbine construction method based on the construction vessel of the present invention not only save ship resources, but also can transport multiple multi-tube jacket foundation wind turbines at the same time, realize the integrated transportation, installation and recovery of multi-tube jacket foundation wind turbines, shorten the offshore construction period, and reduce the offshore construction cost; and greatly limit the relative movement between the multi-tube jacket foundation wind turbines and the integrated mechanical construction vessel, the transportation technology has low difficulty and high safety performance, avoids the use of large equipment, and the transportation, installation and recovery process is integrated, highly coordinated, has a wide range of uses, and can be reused.

[0046] By cooperating with the transporting trolley and slide rail designed on the integrated mechanical construction vessel, the multi-tube jacket foundation wind turbine can be conveniently moved on the integrated mechanical construction vessel. Combined with the fixation of fixed supports and anchor bolts, the structural stability during the sinking process is significantly enhanced, ensuring the safety during the sinking installation process.

[0047] The integrated mechanical construction uses its own lifting device, eliminating the need for additional large lifting vessels, saving ship resources and effectively alleviating the relative motion coupling effect between the lifting device and the hoisted object during offshore installation. This effectively controls the buoyancy and stability of the wind turbine during the sinking of the multi-tube jacket foundation, greatly reducing construction difficulty.

[0048] In summary, the present invention combines the structural characteristics of a multi-tube jacket foundation wind turbine system, and can complete the transportation, installation and recovery of multiple multi-tube jacket foundation wind turbine systems through an integrated mechanical construction vessel. It has many advantages, such as low construction cost, low technical difficulty, fast installation and construction, avoidance of the use of large equipment, low overall cost, wide range of use, and secondary utilization, and has opened up a new form of transportation, installation and recovery construction of offshore wind turbine systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a structural schematic diagram of the integrated mechanical construction vessel provided by the present invention;

[0050] Figure 2 This is a schematic diagram of the structure of an offshore wind turbine with a multi-tube jacket foundation;

[0051] Figure 3 This is a structural schematic diagram of the lifting mechanism of the integrated mechanical construction vessel provided by the present invention.

[0052] Figure 4 This is a schematic structural diagram of the carrier truck of the integrated mechanical construction vessel provided by the present invention;

[0053] Figure 5 This is a schematic structural diagram of the fixed support of the integrated mechanical construction vessel provided by the present invention;

[0054] Figure 6This is a schematic structural diagram of the clamping device of the integrated mechanical construction vessel provided by the present invention.

[0055] In the above figure: 1. Multi-tube jacket foundation wind turbine, 2. Slide rail, 3. Lifting mechanism, 4. Integrated mechanical construction ship, 5. Lifting device; 6. Carrying cart; 7. Roller; 8. Through-hole shaft; 9. Fixed support; 10. Carrying panel; 11. Clamping device; 12. Anchor bolt; 13. Turbine worm gear transmission; 14. Lifting panel. DETAILED DESCRIPTION

[0056] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0057] like Figure 1 As shown, the present invention provides an integrated mechanical construction vessel 4 and a construction method for a multi-tube jacket foundation wind turbine 1 based on the integrated mechanical construction vessel 4. Multiple multi-tube jacket foundation wind turbines 1 can be transported, installed and recovered by the integrated mechanical construction vessel 4.

[0058] like Figure 2 As shown, the multi-tube jacket-based wind turbine 1 generally includes three to four suction cylinders, and multiple suction cylinders are connected to the jacket through the upper jacket top reinforcement section. The main body of the suction cylinder is a steel cylinder, which is composed of a cylinder wall and a cover plate. The cover plate of the suction cylinder is evenly arranged with multiple ventilation / water holes, which are connected to the internal space of the suction cylinder and are mainly used for inflation operations inside the suction cylinder. The jacket is welded by a space truss and a transition section. The bottom of the column of the space truss is connected to the center of the top of the suction cylinder, and the transition section is used to connect to the tower. The top of the jacket is connected to the tower through the transition section, and the upper part of the tower is connected to the wind turbine. The multi-tube jacket-based wind turbine 1 has high structural strength and strong bearing capacity, and is highly applicable to deep-water wind farms.

[0059] The deck surface of the integrated mechanized construction vessel 4 is laid with two slide rails 2 running the length of the vessel. The other side of the hull provides space for the lifting equipment 5 and other necessary work and living areas. The two slide rails 2 are parallel to each other, typically spaced 10-15 meters apart. One slide rail 2 is laid 2-3 meters from the deck edge. The length of the two slide rails 2 is determined by the length of the integrated mechanized construction vessel 4, typically 150-200 meters.

[0060] A lifting mechanism 3 and a lifting device 5 are provided at the stern of the integrated mechanical construction ship 4. The lifting mechanism 3 is located on the side of the slide rail on the deck of the integrated mechanical construction ship 4, and the lifting device 5 is located on the other side of the deck of the integrated mechanical construction ship 4.

[0061] like Figure 3As shown, the lifting mechanism 3 includes a worm gear transmission 13 and a lifting panel 14 connected to the worm gear transmission 13. The worm gear transmission 13 is driven by a motor to drive the lifting panel 14 to rise or fall. The surface of the lifting panel 14 is also provided with a slide rail 2. When the lifting panel 14 is in the highest position, the lifting panel 14 is flush with the deck of the integrated mechanical construction vessel 4, making the lifting panel 14 a part of the deck; at the same time, the slide rail 2 on the surface of the lifting panel 14 is aligned with the slide rail on the deck and connected as a whole. When the lifting panel 14 is in the lowest position, the lifting panel 14 is submerged below the water surface for a certain distance, which is determined according to the set depth of the multi-tube jacket foundation wind turbine 1.

[0062] The lifting device 5 is 10-15m away from the stern and 5-10m away from the side of the ship; the lifting method and specifications are consistent with the lifting device of the existing crane ship, and the winch type is a hydraulic winch.

[0063] like Figure 4 As shown, the carrying trolley 6 includes a carrying panel 10, a through-hole shaft 8, rollers 7, and a motor. The dimensions of the carrying panel 10 are 30m×30m×0.4m, and are used to place the multi-tube jacket foundation wind turbine 1. The dimensions of the rollers 7 match those of the slide rails 2, with a wheel width of 15-20cm and a diameter of 30-50cm. The rollers 7 can roll along the slide rails 2. The through-hole shaft 8 is perpendicular to the slide rails 2, and its length is the same as the distance between the two slide rails 2, which is 10-15m. Four roller wheels 7 are arranged at the bottom of the carrying panel 10, and the two rollers 7 arranged opposite each other are connected by the through-hole shaft 8. The two ends of the through-hole shaft 8 are connected to the carrying panel 10 through bearings, and the through-hole shaft 8 is equipped with a motor. Driven by the motor, the through-hole shaft 8 drives the rollers 7 to rotate, thereby enabling the carrying trolley 6 to carry the multi-tube jacket foundation wind turbine 1 and move linearly on the slide rails 2.

[0064] like Figure 5 As shown, a number of fixed supports 9 are arranged in groups on both sides of the two slide rails 2. The fixed supports 9 correspond to the position of the transporting pallet 6 when the multi-tube jacket foundation wind turbine 1 is in place on the deck of the integrated mechanical construction ship 4, and the position of the transporting pallet 6 when the multi-tube jacket foundation wind turbine 1 is in place on the lifting mechanism 3. The bottom of the fixed support 9 is fixed to the deck on both sides of the two slide rails 2. The upper part of the fixed support 9 is provided with a positioning hole with a diameter of 10 cm. The axis of the positioning hole is collinear with the axis of the through hole shaft 8 of the transporting pallet 6 when in place. When the transporting pallet 6 carries the multi-tube jacket foundation wind turbine 1 and moves to the designed parking position, the through hole shaft 8 of the transporting pallet 6 is aligned with the positioning hole of the fixed support 9. Anchor bolts 12 with a diameter of 9 cm are inserted into the positioning hole of the fixed support 9 and the through hole shaft 8 of the transporting pallet 6 in sequence, thereby limiting and fixing the transporting pallet 6.

[0065] like Figure 6As shown, the multi-tube jacket foundation wind turbine 1 is fixedly connected to the carrying panel 10 of the carrying vehicle 6 via a clamping device 11. The clamping devices 11 are arranged around each suction cylinder of the multi-tube jacket foundation wind turbine 1, with 4-6 clamping devices 11 corresponding to each suction cylinder. The clamping devices 11 are fixed to the carrying panel 10 at the bottom and are provided with snap-fit ​​structures at the top. These snap-fit ​​structures can lock the corresponding positions of the suction cylinders, thus achieving a rigid connection between the multi-tube jacket foundation wind turbine 1 and the carrying vehicle 6.

[0066] The transportation and installation process of the multi-tube jacket foundation wind turbine 1 constructed using the integrated mechanical construction vessel 4 is as follows:

[0067] (1) Loading the multi-tube jacket foundation wind turbine 1:

[0068] The integrated mechanical construction vessel 4 is moored at a designated work dock, which is equipped with tracks capable of connecting to a lifting panel 14 and onto which a transport trolley 6 is pre-installed. A land-based crane is used to hoist the multi-tube jacket foundation wind turbine 1 onto the transport panel 10 of the transport trolley 6. The clamping device 11 engages each suction cylinder of the multi-tube jacket foundation wind turbine 1, securing the multi-tube jacket foundation wind turbine 1 and the transport trolley 6 to form a single motion system with no relative motion.

[0069] The transporting trolley 6 transports the multi-tube jacket foundation wind turbine 1 from the designated working dock along the track and slide rail 2 to the designed parking position on the deck of the integrated mechanical construction ship 4, and inserts the anchor bolt 12 through the positioning through hole of the fixed support 9 along the through hole axis 8 of the transporting trolley 6 to limit and fix the transporting trolley 6. At this time, the ventilation / water holes of each suction cylinder of the multi-tube jacket foundation wind turbine 1 are in an open state.

[0070] The above process is repeated several times, and multiple transporting carts 6 carrying the multi-tube jacket foundation wind turbines 1 are fixed to the various designed parking positions of the integrated mechanical construction vessel 4 in sequence.

[0071] (2) The integrated mechanical construction vessel 4 travels to the designated sea area and prepares for lowering and installation operations.

[0072] (3) Pull out the anchor bolts 12 from the carrier trolley 6 closest to the lifting mechanism 3, so that the carrier trolley 6 can slide along the slide rails 2. At this time, the lifting panel 14 is in the highest position, that is, the lifting panel 14 is flush with the deck of the integrated mechanical construction vessel 4. Slide the carrier trolley 6 carrying the multi-tube jacket foundation wind turbine 1 to be installed onto the lifting panel 14, and fix the fixed support 9 on the lifting panel 14 to the carrier trolley 6 through the anchor bolts 12, ensuring that the carrier trolley 6 and the lifting mechanism 3 form the same motion system without relative motion.

[0073] (4) Connect the hook of the lifting device 5 on the integrated mechanical construction ship 4 to the lifting lug of the multi-tube jacket foundation wind turbine 1.

[0074] (5) Start the motor of the lifting mechanism 3 and lower the lifting panel 14 at a constant speed through the worm gear transmission device 13. When the lifting panel 14 descends until the multi-tube jacket foundation wind turbine 1 reaches the set depth, close the ventilation / water holes. Open the clamping device 11, so that the multi-tube jacket foundation wind turbine 1 can be separated from the carrier trolley 6. At this time, since the multi-tube jacket foundation wind turbine 1 is partially submerged in water, the multi-tube jacket foundation wind turbine 1 is lifted by the lifting device 5 and is subject to a certain buoyancy.

[0075] The set depth is the depth of the multi-tube jacket foundation wind turbine 1 where the volume of gas inside the suction tube accounts for 10%-30% of the volume of the suction tube.

[0076] (6) The hoisting device 5 rotates the boom to pull the multi-tube jacket foundation wind turbine 1 horizontally from above the lifting panel 14 to the rear of the stern of the integrated mechanical construction ship 4, ready for sinking.

[0077] (7) After the wind turbine 1 on the multi-tube jacket foundation sinks under its own weight, it sinks to the designated position under negative pressure, and the soil inside the suction tube is reinforced under negative pressure. The specific operations are as follows:

[0078] Open the ventilation / water holes to allow the multi-tube jacket foundation wind turbine 1 to sink under its own weight, and the multi-tube jacket foundation penetrates the soil surface until its own weight and soil resistance are balanced and the sinking stops. The water pump pumps water or air through the ventilation / water holes to increase the pressure difference between the inside and outside of the suction cylinder, so that the multi-tube jacket foundation wind turbine 1 sinks to the specified position under negative pressure; during the sinking process, different suction cylinders are filled / drained or exhausted through the ventilation / water holes to achieve the leveling operation of the multi-tube jacket foundation wind turbine 1; after the sinking is completed, the negative pressure is continued for a period of time to reinforce the soil inside the suction cylinder under negative pressure.

[0079] (8) After completing the above operations, the connection between the hook of the lifting device 5 and the lifting lug of the multi-tube jacket foundation wind turbine 1 is released, and the integrated mechanical construction ship 4 travels to the next installation location, and the above steps (2)-(7) are repeated to install the multi-tube jacket foundation wind turbine 1 on the next carrier trolley 6 closest to the lifting mechanism 3.

[0080] The recovery process of the multi-tube jacket foundation wind turbine 1 construction method based on the integrated mechanical construction vessel 4 is as follows:

[0081] (1) The integrated mechanical construction vessel 4 travels to the designated sea area and adjusts the position of the integrated mechanical construction vessel 4 so that the wind turbine 1 of the multi-tube jacket foundation to be recovered is located below the rear of the vessel;

[0082] The lifting mechanism 3 adjusts the lifting panel 14 to the lowest position, and fixes the transporting trolley 6 carrying the multi-tube jacket foundation wind turbine 1 to be recovered on the lifting panel 14 through the anchor bolts 12 and the fixing support 9;

[0083] The hook of the lifting device 5 on the integrated mechanical construction vessel 4 is connected to the lifting lug of the multi-tube jacket foundation wind turbine 1 .

[0084] (2) Slowly inject water into the suction cylinder through the ventilation / water hole to lift the multi-tube jacket foundation wind turbine 1 to be recovered. When the suction cylinder is completely unearthed, open the ventilation / water hole and use the lifting device 5 to lift the multi-tube jacket foundation wind turbine 1 to the set depth.

[0085] At this time, the suction cylinder is not completely surfaced, and the lifting device 5 still bears part of the weight of the multi-tube jacket foundation wind turbine 1 to ensure the floating stability of the multi-tube jacket foundation wind turbine 1 during the lifting process.

[0086] (3) The hoisting device 5 rotates the boom to pull the multi-tube jacket foundation wind turbine 1 horizontally from the rear of the stern to above the lifting panel 14.

[0087] (4) The clamping device 11 of the carrying trolley 6 on the lifting panel 14 clamps each suction cylinder of the multi-tube jacket-based wind turbine 1, so that the multi-tube jacket-based wind turbine 1 and the carrying trolley 6 become the same motion system without relative motion.

[0088] (5) The motor of the lifting mechanism 3 is started, and the lifting panel 14 is raised at a constant speed through the worm gear transmission device 13. When the lifting panel 14 is flush with the deck of the integrated mechanical construction vessel 4, the transporting trolley 6 carrying the multi-tube jacket foundation wind turbine 1 is moved along the slide rails 2 to the designed parking position on the deck, completing the recovery of the multi-tube jacket foundation wind turbine 1.

[0089] Afterwards, the integrated mechanical construction vessel 4 can travel to other designated sea areas to complete the recovery of other multi-tube jacket foundation wind turbines 1 .

[0090] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms of specific changes without departing from the scope of protection of the present invention and the claims. These all fall within the scope of protection of the present invention.

Claims

1. A method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel, characterized in that: The integrated mechanical construction vessel includes: The slide rail is laid on the deck surface of the integrated mechanical construction vessel and is arranged along the length direction of the integrated mechanical construction vessel; A carrying trolley, matched with the slide rail, capable of moving linearly along the slide rail; A lifting mechanism is provided at the stern of the integrated mechanical construction vessel; the lifting mechanism includes a lifting panel that can be raised and lowered relative to the deck, and when the lifting panel is in the highest position, the slide rail on the surface of the lifting panel docks with the slide rail on the deck; A fixed support, used to limit and fix the transporting trolley when the deck and the lifting mechanism are in place; A lifting device is installed at the stern of the integrated mechanical construction vessel; The transportation and installation process includes: (1) Carrying out the loading operation of at least one multi-tube jacket foundation wind turbine on the integrated mechanical construction vessel; (2) The integrated mechanical construction vessel sails to the designated sea area; (3) The multi-tube jacket foundation wind turbines are installed sequentially starting from the carrier truck closest to the lifting mechanism; the installation process of each multi-tube jacket foundation wind turbine is as follows: Release the fixed support on the deck from limiting the position of the transporting trolley. When the lifting panel is in the highest position, move the transporting trolley carrying the wind turbine with a multi-tube jacket foundation to be installed to the lifting panel. Use the fixed support on the lifting panel to limit and fix the transporting trolley carrying the wind turbine with a multi-tube jacket foundation. Connecting the hook of the lifting device to the lifting lug of the multi-tube jacket foundation wind turbine; The lifting panel is lowered by the lifting mechanism until the multi-tube jacket rack foundation wind turbine reaches a set depth, and the ventilation / water holes provided on the top cover of each suction tube of the multi-tube jacket rack foundation wind turbine are closed; the fixing of the multi-tube jacket rack foundation wind turbine by the transporting flatbed truck is released; wherein the set depth is the depth of the multi-tube jacket rack foundation wind turbine where the volume of gas inside the suction tube accounts for 10%-30% of the volume of the suction tube; The multi-tube jacket foundation wind turbine is towed from above the lifting panel to the rear stern of the integrated mechanical construction vessel by the lifting device; The multi-tube jacket foundation wind turbine sinks to a designated position under negative pressure after its own weight, and the soil inside the suction tube is reinforced under negative pressure; The connection between the lifting device and the multi-tube jacket foundation wind turbine is released.

2. The method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel according to claim 1, characterized in that: The integrated mechanical construction vessel is used to transport, install and / or recover the multi-tube jacket foundation wind turbine, the transporting flatbed is used to carry the multi-tube jacket foundation wind turbine, and the lifting device is used to lift the multi-tube jacket foundation wind turbine.

3. The method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel according to claim 1, characterized in that: The slide rail is laid on one side of the deck, and the lifting device is arranged on the other side of the deck.

4. The method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel according to claim 1, characterized in that: The highest position of the lifting panel is flush with the deck, and the lowest position of the lifting panel is determined according to the set depth of the multi-tube jacket foundation wind turbine.

5. The method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel according to claim 1, characterized in that: The transport cart includes a transport panel, at least two groups of rollers are installed at the lower part of the transport panel, a through-hole shaft is connected between each group of rollers, and the through-hole shaft is equipped with a motor; the through-hole shaft is driven by the motor to drive the rollers to rotate, so that the transport cart moves linearly along the slide rail.

6. The method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel according to claim 5, characterized in that: There are multiple groups of fixed supports, and the two fixed supports in each group are arranged on both sides of the slide rail. Each fixed support is provided with a positioning through hole; when the transport cart is in place on the deck and the elevator, the positioning through hole of the fixed support is coaxial with the through hole axis of the transport cart, and the transport cart can be limited and fixed by inserting the positioning through hole and the through hole axis in sequence through anchor bolts.

7. The method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel according to claim 5, characterized in that: The carrying panel is provided with a clamping device for fixing the multi-tube jacket foundation wind turbine.

8. The method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel according to claim 1, characterized in that: The loading operation includes: The integrated mechanical construction vessel is moored at a designated work dock, which is provided with a track capable of connecting with the lifting panel, and the transporting pallet truck is pre-installed on the track; Use an onshore crane to hoist the multi-tube jacket foundation wind turbine onto the transport vehicle, and then fix the multi-tube jacket foundation wind turbine on the transport vehicle; The transporting pallet transports the multi-tube jacket foundation wind turbine from the designated working dock along the track and the slide rail to the designed parking position on the deck of the integrated mechanical construction vessel, and the transporting pallet is limited and fixed by the fixed support on the deck.

9. A method for constructing a wind turbine with a multi-tube jacket foundation based on an integrated mechanical construction vessel according to claim 1, characterized in that: The recycling process includes: (1) Sailing the integrated mechanical construction vessel to the designated sea area, adjusting the position of the integrated mechanical construction vessel so that the multi-tube jacket foundation wind turbine to be recovered is located below the rear of the vessel; Using the lifting mechanism to adjust the lifting panel to the lowest position, and fixing the transporting trolley via the fixing support on the lifting panel; Connecting the hook of the lifting device to the lifting lug of the multi-tube jacket foundation wind turbine; (2) Inject water through the ventilation / water holes provided on the top cover of the suction tube to lift up the multi-tube jacket frame foundation wind turbine complete machine, open the ventilation / water holes after the suction tube is completely unearthed, and use the lifting device to lift the multi-tube jacket frame foundation wind turbine complete machine to the set depth; (3) Pulling the multi-tube jacket foundation wind turbine from the rear of the ship to above the lifting panel through the lifting device; (4) The multi-tube jacket foundation wind turbine is fixedly connected to the transporting trolley fixed on the lifting panel; (5) The lifting mechanism is used to adjust the lifting panel to the highest position, and the transporting trolley carrying the multi-tube jacket foundation wind turbine is moved along the slide rail to the designed parking position of the deck.

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