Integral mounting device for improving construction efficiency of offshore wind turbine

Abstract

The utility model discloses an integral installation device for improving construction efficiency of offshore wind turbines, which comprises a barge, a sliding device, a wind turbine fixing device and a wind turbine generator set, and a rectangular opening is arranged at the stern of the barge and used for a wind turbine foundation to enter the rectangular opening so as to facilitate installation operation of the wind turbines. And the sliding device is arranged on the barge deck and is a device for realizing the sliding of the fan fixing device and the fan along the long axis direction of the barge. The fan fixing device mainly comprises a tower base and a fixing truss. The fixing truss fixes a fan tower through the movable arm, and the tower base is provided with a balance weight so that the gravity center of the wind turbine generator and the fan fixing device can be lowered. The device can realize sliding shipment of the land wind turbine generator; the stability of the wind turbine generator is ensured during fan transportation; when the fan is installed, the wind turbine generator and the fan foundation are installed through the sliding device, a floating crane does not need to be matched, and the installation cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to an integral installation device for improving the construction efficiency of an offshore wind turbine, and belongs to the technical field of offshore wind turbine installation. Background Art

[0002] As the demand for renewable energy continues to grow, offshore wind energy production is increasing rapidly. In order to meet this demand, the offshore wind power industry is developing in the direction of large-scale and intensive development. However, with the increase in the capacity of the new generation of offshore wind turbines, their hub height, blade length and weight have also increased accordingly. This puts higher requirements on the installation technology and operation capabilities of offshore wind turbines. The traditional offshore wind turbine installation method faces unprecedented challenges, which restricts the rapid development of the offshore wind energy resource industry.

[0003] As offshore wind power develops towards the deep sea, the water depth continues to increase, and the requirements for the leg length and lifting height of wind turbine installation vessels have been greatly improved. For some planned deep sea sites, even with the investment of a new generation of offshore wind turbine installation vessels, it is still impossible to achieve full coverage of offshore split installation by wind turbine installation vessels.

[0004] At present, there are two main ways to install offshore wind turbines: one is the on-site component assembly scheme, that is, the wind turbine components are transported to the offshore wind farm, and the wind turbine installation ship completes the hoisting of the tower, nacelle and blades in sequence; the other is the on-site overall hoisting scheme, that is, the wind turbine components are hoisted at the dock, transported to the offshore wind farm by ship, and hoisted as a whole by a large floating crane. The former requires the hoisting of various components of the wind turbine to be completed on site, which is time-consuming and costly to install, and the reliability of the installation is difficult to guarantee. In contrast, the second option is more suitable for the installation of offshore wind turbines with large power units in the future, but this option still requires the investment of large offshore floating cranes and auxiliary facilities. Compared with the former, its hoisting cost has not been significantly reduced, and it is difficult to meet the established levelized energy cost requirements. However, the ship machinery equipment that currently has experience in the overall installation and implementation of offshore wind turbines cannot meet the overall installation requirements of large megawatt units in the future, and new technologies are urgently needed.

[0005] In addition, when large offshore oil and gas platforms are transported and installed by floating and dragging, the wind turbines are positioned and installed as a whole by using the power of tides and construction techniques such as ship load adjustment, thus avoiding the use of offshore self-elevating wind turbine installation vessels or floating cranes. The above method has significant advantages such as large installable weight, short construction period, and low technical risk. Due to the tall structure and high center of gravity of the wind turbine, there are still stability issues during overall upright transportation and installation. Therefore, this method still has difficulties when used for offshore wind turbine transportation and installation.

[0006] Therefore, it is necessary to propose a new type of integrated installation device for offshore wind turbines to solve the problems mentioned in the above background. Utility Model Content

[0007] The purpose of the utility model is to provide an integrated installation device that improves the construction efficiency of offshore wind turbines, so as to solve the practical problems in the above-mentioned background technology that large crane ships are needed to be invested in the installation of offshore wind turbines, resulting in slow installation progress and high installation costs; and that there are no ships available for the offshore installation of large megawatt wind turbines in some deep sea areas.

[0008] To achieve the above purpose, the utility model provides the following technical solutions:

[0009] An integrated installation device for improving the construction efficiency of offshore wind turbines includes a barge, a sliding device, a wind turbine fixing device, a wind turbine unit, a wind turbine foundation and a land device. The stern of the barge is provided with an opening, and the diameter of the opening is larger than the diameter of the top of the wind turbine foundation. The sliding device includes a bearing plate, a first sliding track, and a sliding plate. The bearing plate is fixed to the surface of the barge, the first sliding track is provided on the bearing plate and arranged along the long axis of the barge, and the sliding plate is provided on the first sliding track and can slide along the first sliding track; the wind turbine fixing device is installed above the sliding plate. A U-shaped opening is provided at the end of the sliding plate, and a plurality of first bolts are provided around the U-shaped opening. The bottom of the tower of the wind turbine unit is provided with an expanded bottom, and a plurality of mounting holes are provided on the expanded bottom. The expanded bottom of the wind turbine tower is fixed to the U-shaped opening by the first bolt, and the wind turbine tower is fixed by the wind turbine fixing device, so that the wind turbine fixing device and the wind turbine can be slid along the long axis of the barge by using the sliding device. The land device includes a second sliding track provided on land, and the second sliding track can be connected and matched with the first sliding track when the barge moves to the edge of the land.

[0010] In the above technical solution, further, one end of the supporting plate is provided with an opening, which is overlapped with the opening of the barge and has the same size, preferably a rectangular opening, and the opening width is larger than the outer diameter of the wind turbine tower and smaller than the expanded bottom diameter of the wind turbine tower, which divides the stern of the barge into two left and right cabins, and forms two left and right areas at this end of the supporting plate, and each area is provided with at least one first sliding track.

[0011] Furthermore, the upper surface of the bearing plate is symmetrically provided with a total of 4 first sliding tracks along the axis direction of the barge, and a plurality of sliding vehicles are symmetrically provided on the first sliding tracks, and the sliding plate is fixedly installed on the top of the sliding vehicles. All the sliding vehicles move synchronously in the first sliding tracks to realize the sliding movement of the sliding plate and the fan on the sliding plate for easy installation.

[0012] Furthermore, the sliding vehicle includes a braking device, wheels, a first motor and a hydraulic pump. The first motor and the braking device respectively control the movement and braking of the sliding vehicle. A plurality of hydraulic pumps are arranged on the top of the sliding vehicle. The top of the hydraulic pump is fixedly connected to the bottom surface of the sliding plate. The hydraulic pump can control the lifting and lowering of the sliding plate.

[0013] Furthermore, the first sliding track is embedded in the upper surface of the supporting plate. When the fan is transported or parked, the hydraulic pump of the sliding vehicle descends and the sliding plate is directly supported and fixed on the supporting plate. When the sliding plate needs to be moved, the hydraulic pump of the sliding vehicle rises, and the sliding plate rises accordingly and is completely supported by the sliding vehicle.

[0014] Furthermore, the wind turbine fixing device mainly includes a tower base and a fixing truss. The tower of the wind turbine is fixed by the fixing truss. The tower base is fixed to the sliding plate and is the base of the tower. The tower base is provided with a counterweight to lower the center of gravity of the wind turbine, thereby ensuring the stability of the wind turbine during transportation.

[0015] Furthermore, the fixed truss comprises a core tube, a tower cage, two first movable arms and two second movable arms. The core tube is preferably a rectangular parallelepiped, arranged at the center of the tower base, and is the main load-bearing component of the wind turbine fixing device.

[0016] Furthermore, the tower cage is provided on the periphery of the core tube, and the tower cage is fixed to the core tube and the tower base. The first movable arm and the second movable arm are respectively provided on both sides of the upper part and the lower part of the tower cage, and the opening and closing of the two first movable arms and the two second movable arms are controlled by a plurality of rotating shafts and a second motor provided on the side of the tower cage, so as to realize the fixing and release of the wind turbine tower. The inner side surfaces of the ends of the two first movable arms and the two second movable arms are provided with buffer blocks to prevent collision between the movable arms and the tower.

[0017] Furthermore, the land device and the barge can cooperate with each other. When the barge moves to the edge of the land device, the sliding device can move in the first sliding track and the second sliding track, so that the wind turbine can be hoisted on the sliding device on land and loaded on the ship through the sliding device.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) The utility model can adopt the sliding method to load the wind turbine set onto the ship, without the need for a large crane ship to lift and load the wind turbine set onto the ship. The wind turbine set components can be installed on the sliding device by the lifting equipment on land, and then directly moved from land to the barge by the sliding device to complete the loading, which greatly improves the loading efficiency and reduces the construction risk and cost of the overall lifting of the wind turbine.

[0020] (2) Ensure the stability and safety of wind turbines during transportation. The barge is equipped with a wind turbine fixing device. The wind turbine tower can be fixed by the first movable arm and the second movable arm. The bottom of the wind turbine can be fixed by the first bolt on the sliding plate and the tower expansion bottom. The center of gravity of the wind turbine and the fixed truss can be lowered by the counterweight of the tower base, thereby effectively enhancing the stability of the wind turbine during transportation.

[0021] (3) Wind turbine installation does not require the aid of a large crane ship. After the barge is in place, the wind turbine and the fixed truss are moved to the top of the wind turbine foundation through a sliding device, and the height of the wind turbine is controlled by the ballast water volume. When the wind turbine fits the wind turbine foundation, the second bolt on the top of the wind turbine foundation can fix the wind turbine and the wind turbine foundation. The entire process of wind turbine installation does not require lifting, which greatly reduces the installation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of an overall installation device for an offshore wind turbine in one embodiment of the utility model;

[0023] Figure 2 This is a top view of an overall installation device for an offshore wind turbine in one embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of a barge in one embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of a sliding device in an embodiment of the utility model;

[0026] Figure 5 This is an exploded view of a sliding device in one embodiment of the utility model;

[0027] Figure 6 This is a structural diagram of a sliding vehicle in one embodiment of the utility model;

[0028] Figure 7 This is a schematic diagram of a fan fixing device in one embodiment of the utility model;

[0029] Figure 8 This is a side view of a fan fixing device in one embodiment of the utility model;

[0030] Fig. 9 This is a schematic diagram of a fixed truss in an embodiment of the utility model;

[0031] Fig.10 This is a front view of a fixed truss in one embodiment of the utility model;

[0032] Fig.11 This is a schematic diagram of wind turbine loading on a ship in one embodiment of the utility model;

[0033] Fig.12 This is a top view of a wind turbine installed on a ship in one embodiment of the utility model;

[0034] Fig.13 This is a schematic diagram of overall installation in one embodiment of the utility model;

[0035] In the figure: 1. barge; 2. sliding device; 201. load-bearing plate; 202. first sliding track; 203. sliding car; 2031. braking device; 2032. wheel; 2033. first motor; 2034. hydraulic pump; 204. sliding plate; 205. first bolt; 3. fan fixing device; 301. tower base; 302. fixed truss; 3021. core tube; 3022. tower cage; 3023. rotating shaft; 3024. first movable arm; 3025. second movable arm; 3026. second motor; 3027. buffer block; 4. fan; 401. tower; 402. bottom expansion; 5. fan foundation; 501. steel pipe pile; 502. flange; 503. second bolt. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] See also Figure 1-12 The utility model provides a specific embodiment of an overall installation device for improving the construction efficiency of offshore wind turbines. In this example, the device includes a barge 1, a sliding device 2, a wind turbine fixing device 3, a wind turbine unit 4, a wind turbine foundation 5 and a land device. The stern of the barge 1 is provided with a rectangular opening 102. The sliding device 2 is installed on the upper surface of the barge 1, and mainly includes a bearing plate 201, a first sliding track 202, a sliding vehicle 203, a sliding plate 204 and a first bolt 205, which is a device for realizing the sliding of the wind turbine fixing device 3 and the wind turbine unit 4 along the long axis direction of the barge 1. The wind turbine fixing device 3 is installed above the sliding plate 204. The wind turbine fixing device 3 mainly includes a tower base 301 and a fixed truss 302. The tower 401 of the wind turbine unit 4 is fixed by the fixed truss 302, and the bottom of the tower 401 is provided with a bottom expansion 402. The bottom expansion 402 is connected to the first bolt 205 of the sliding plate 204 to achieve the fixation of the bottom of the wind turbine.

[0038] The width of the rectangular opening 102 at the stern of the barge 1 is larger than the outer diameter of the wind turbine tower 401 and smaller than the diameter of the expanded bottom 402 of the wind turbine tower, and the opening 102 divides the stern of the barge 1 into two left and right cabins.

[0039] The bearing plate 201 of the sliding device 2 is fixed on the top of the barge 1 along the long axis direction of the barge 1. The bearing plate 201 at the stern is also provided with a rectangular opening, the size of which matches the barge rectangular opening 102. It divides the bearing plate 201 into two left and right areas.

[0040] The upper surface of the bearing plate 201 is symmetrically provided with four first sliding rails 202 along the axis direction of the barge 1, two in each of the above-mentioned areas, and three sliding vehicles 203 are symmetrically provided on each first sliding rail 202, and a sliding plate 204 is provided on the sliding vehicle 203. The sliding vehicle 203 moves in the first sliding rail 202 to achieve sliding movement and installation of the sliding plate 204 and the fan 4 on the sliding plate 204.

[0041] The sliding vehicle 203 can be implemented by any existing driving method. In this example, the sliding vehicle 203 can include a braking device 2031, a wheel 2032, a first motor 2033 and a hydraulic pump 2034. The first motor 2033 and the braking device 2031 respectively control the movement and braking of the sliding vehicle 203. The driving and braking of the sliding vehicle 203 can also be implemented by existing methods. Figure 6 It is only a schematic diagram of the sliding vehicle in this example, wherein the installation position and structural form of the first motor and the braking device, and the position and structural form of the wheels can be adjusted according to the existing implementation method; a plurality of the hydraulic pumps 2034 are arranged on the top of the sliding vehicle 203, and the hydraulic pumps 2034 can control the lifting and lowering of the sliding plate 204.

[0042] The first sliding rail 202 is embedded in the upper surface of the supporting plate 201. When the wind turbine is transported or parked, the hydraulic pump 2034 of the sliding vehicle 203 descends, and the sliding plate 204 is directly supported and fixed on the supporting plate 201; when the sliding plate 204 needs to be moved, the hydraulic pump 2034 of the sliding vehicle 203 rises, and the sliding plate 204 rises accordingly and is completely supported by the sliding vehicle 203.

[0043] The sliding plate 204 is a rectangular parallelepiped, with a U-shaped opening at the center of the side, the opening diameter is slightly larger than the outer diameter of the tower 401, smaller than the outer diameter of the tower expansion bottom 402, and the opening position matches the rectangular opening position of the bearing plate 201. A first bolt 205 is arranged around the opening to fix the wind turbine tower expansion bottom 402, and its position is consistent with the bolt hole position reserved on the expansion bottom 402.

[0044] The wind turbine fixing device 3 includes a tower base 301 and a fixed truss 302. The tower base 301 is fixed to the sliding plate 204 and is the base of the fixed truss 302. The tower base 301 has a counterweight to lower the center of gravity of the wind turbine 4, thereby ensuring the stability of the wind turbine 4 during transportation.

[0045] The fixed truss 302 comprises a core tube 3021, a tower cage 3022, a rotating shaft 3023, a first movable arm 3024, a second movable arm 3025, a second motor 3026 and a buffer block 3027. The core tube 3021 is a rectangular parallelepiped, arranged at the center of the tower base 301, and is the main load-bearing component of the wind turbine fixing device 3.

[0046] The tower cage 3022 is provided on the periphery of the core tube 3021, and the tower cage 3022 is fixed to the core tube 3021 and the tower base 301. The first movable arm 3024 and the second movable arm 3025 are respectively provided on both sides of the upper part and the lower part of the tower cage 3022, and the outer sides of the two opposite movable walls can be tied to further fix the tower. A buffer block 3027 is provided at the end of the movable arm to prevent collision between the movable arm and the tower. A rotating shaft 3023 and a second motor 3026 are provided on the tower cage 3022 side of the movable arm to control the opening and closing of the first movable arm 3024 and the second movable arm 3025, so as to achieve fixation and release at the wind turbine tower 401.

[0047] The land device includes a second sliding track 601 arranged on the land 6. When the barge moves to the edge of the land, the second sliding track 601 can be connected and matched with the first sliding track 202. The sliding device 2 can move within the first sliding track 202 and the second sliding track 601, thereby realizing the hoisting of the wind turbine 4 on the sliding device 2 on land and loading it onto the ship through the sliding device 2.

[0048] The wind turbine foundation includes a steel pipe pile 501 and a flange 502 on its top, and a plurality of second bolts 503 for connecting to the bottom of the wind turbine tower are arranged on the flange 502; the wind turbine foundation is fixed to the seabed, and during installation, the barge moves to the steel pipe pile of the wind turbine foundation and enters into the tail opening thereof, and the barge is fixed in place, and the wind turbine and the fixed truss are moved together to the top of the wind turbine foundation through a sliding device, and the height of the wind turbine is controlled by the ballast water volume. When the wind turbine is fitted with the wind turbine foundation, the second bolt on the top of the wind turbine foundation can be fixed to fix the wind turbine and the wind turbine foundation, and the first bolt is removed and the first movable arm and the second movable arm are controlled to open to complete the installation. The entire installation process of the wind turbine does not require hoisting, which greatly reduces the installation cost.

[0049] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the ideas and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An integrated installation device for improving the construction efficiency of offshore wind turbines, characterized in that: The invention comprises a barge (1), a sliding device (2), a wind turbine fixing device (3), a wind turbine set (4), a wind turbine foundation (5) and a land device. The stern of the barge (1) is provided with an opening (102), the diameter of the opening (102) is larger than the diameter of the top of the wind turbine foundation (5), the sliding device (2) comprises a bearing plate (201), a first sliding track (202) and a sliding plate (204), the bearing plate (201) is fixed to the surface of the barge, the first sliding track (202) is arranged on the bearing plate (201) and arranged along the long axis direction of the barge (1), and the sliding plate (204) is arranged on the first sliding track (201). 02) and can slide along the first sliding track; a U-shaped opening is provided at the end of the sliding plate (204), and a plurality of first bolts (205) are provided around the U-shaped opening; the wind turbine fixing device (3) is fixedly installed on the sliding plate (204); a bottom expansion (402) is provided at the bottom of the tower (401) of the wind turbine set (4), and a plurality of mounting holes are provided on the expansion (402); the land device includes a second sliding track (601) arranged on the land (6), and when the barge moves to the edge of the land, the second sliding track (601) can be connected and matched with the first sliding track (202).

2. The overall installation device for improving the construction efficiency of offshore wind turbines according to claim 1, characterized in that: One end of the bearing plate (201) is provided with an opening, which is overlapped with the barge opening (102) and has the same size. The end of the bearing plate is formed into two left and right areas, and each area is provided with at least one first sliding track.

3. The overall installation device for improving the construction efficiency of offshore wind turbines according to claim 1 is characterized in that: A total of four first sliding rails (202) are symmetrically arranged on the upper surface of the bearing plate (201) along the axis direction of the barge, a plurality of sliding vehicles (203) are symmetrically arranged on the first sliding rails (202), and a sliding plate (204) is fixedly installed on the top of the sliding vehicle (203).

4. The overall installation device for improving the construction efficiency of offshore wind turbines according to claim 3 is characterized in that: A plurality of hydraulic pumps (2034) are provided on the top of the sliding vehicle (203), the top of the hydraulic pump (2034) is fixedly connected to the bottom surface of the sliding plate (204), and the hydraulic pump is used to control the lifting and lowering of the sliding plate.

5. The overall installation device for improving the construction efficiency of offshore wind turbines according to claim 3 is characterized in that: The first sliding track (202) is embedded in the upper surface of the carrying plate (201).

6. The integrated installation device for improving the construction efficiency of offshore wind turbines according to claim 1, characterized in that: The wind turbine fixing device (3) comprises a tower base (301) and a fixing truss (302); the tower base (301) is fixed to a sliding plate (204); and the tower base (301) is provided with a counterweight.

7. The integrated installation device for improving the construction efficiency of offshore wind turbines according to claim 6, characterized in that: The fixed truss (302) comprises a core tube (3021), a tower cage (3022), two first movable arms (3024) and two second movable arms (3025); the core tube (3021) is arranged at the center of the tower base (301); the tower cage (3022) is arranged at the periphery of the core tube (3021) and is fixed to the core tube (3021) and the tower base (301); the two first movable arms (3024) are respectively connected to both sides of the upper part of the tower cage (3022) through a rotating shaft, and the two second movable arms (3025) are respectively connected to both sides of the lower part of the tower cage (3022) through a rotating shaft, and the rotating shaft is controlled by a second motor (3026).

8. The overall installation device for improving the construction efficiency of offshore wind turbines according to claim 7, characterized in that: Buffer blocks (3027) are provided on opposite sides of the ends of the two first movable arms (3024) and the two second movable arms (3025).

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