Overall transportation and installation device for offshore wind turbines installed in translation mode

Abstract

The utility model discloses an offshore wind turbine integral transportation and installation device adopting translation installation, which comprises a barge, a translation device, a wind turbine fixing device, a wind turbine generator and a wind turbine foundation, and the translation device is installed on the barge and is a device for realizing translation of the wind turbine fixing device and a wind turbine in the direction perpendicular to the long axis of the barge. The fan fixing device comprises a counterweight detachable tower base and an embracing type fixing truss, and is used for lowering the overall gravity center of the fan and the tower and ensuring the stability of fan transportation. After the barge is in place, the device realizes the installation of the fan and the fan foundation through the translation device, does not need to be matched with other large-scale construction ships such as crane ships, breaks through the limitation of factors such as the length of supporting legs of a self-elevating fan installation ship, the hoisting height and the like, can greatly reduce the installation cost, and has important significance for promoting the development of deep and far sea wind power.

Description

Technical Field

[0001] The utility model relates to an overall transportation and installation device and method for an offshore wind turbine using translation installation, belonging to the technical field of offshore wind turbine transportation and installation. Background Art

[0002] With the growing demand for renewable energy, offshore wind energy production is increasing rapidly, and the offshore wind power industry is developing in the direction of large-scale and intensive development. As the capacity of a new generation of offshore wind turbines continues to increase, their hub height, blade length and weight also increase. At the same time, this also puts higher requirements on the installation equipment and operation capabilities of offshore wind turbines. Traditional offshore wind turbine installation methods are facing unprecedented challenges, which restricts the rapid development of the offshore wind 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, the installation of offshore wind turbines mainly includes: (1) On-site component assembly scheme: wind turbine components are transported to the offshore wind farm in sequence, and the wind turbine installation ship completes the hoisting of the tower, nacelle and blades in sequence; (2) On-site overall hoisting scheme: wind turbine components are hoisted at the dock, transported to the offshore wind farm by ship, and the overall hoisting of the wind turbine is completed by a large floating crane. The former requires the hoisting of various wind turbine components on site, which is time-consuming and costly, and the installation reliability is difficult to guarantee. In contrast, the second scheme is more suitable for the installation of offshore wind turbines with large power units in the future, but this scheme still requires the help 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, especially the overall installation requirements of large megawatt units in the future, and new technologies are urgently needed.

[0005] The advantage of offshore translation installation is that the wind turbine can be installed by moving the entire wind turbine to a predetermined location via a track, without the need for an offshore self-elevating wind turbine installation vessel or floating crane. This improves construction efficiency while reducing the cost of large crane vessels. However, there are still the following difficulties in promoting the implementation of offshore translation installation of wind turbines:

[0006] (1) Offshore wind turbines are tall structures with a high center of gravity, and are prone to overturning and collapse during overall transportation.

[0007] (2) The research and development of special installation devices and technologies for large offshore wind turbines is still vacant.

[0008] Therefore, it is necessary to propose an overall transportation and installation device and method for offshore wind turbines using translational installation, so as to solve the problems mentioned in the above background. Utility Model Content

[0009] The purpose of the utility model is to provide an overall transportation and installation device and method for offshore wind turbines using translational installation, so as to solve the problems in the above-mentioned background technology that the installation of offshore wind turbines requires the cooperation of floating cranes, resulting in slow installation progress and high installation costs.

[0010] To achieve the above purpose, the utility model provides the following technical solutions:

[0011] A device for transporting and installing an offshore wind turbine as a whole using translation installation, comprising a barge, a translation device, a wind turbine fixing device, a wind turbine set, and a wind turbine foundation, wherein the translation device comprises a first bearing plate, a second bearing plate and a translation plate, wherein the first bearing plate is fixed to the barge, and one end of the first bearing plate is cantilevered out of the barge, the end is U-shaped to form two cantilever ends for enabling the wind turbine foundation fixed to the seabed to enter the U-shaped end through the movement of the barge, the first bearing plate is provided with a plurality of translation tracks perpendicular to the long axis direction of the barge, the second bearing plate is fixed to the first bearing plate and the height is higher than the translation track; a translation vehicle is provided on the translation track, the translation plate is located above the second bearing plate and is fixed on the translation vehicle, a U-shaped opening is provided on one side of the translation plate close to the cantilever end of the first bearing plate, a plurality of first bolts are provided on the upper edge of the U-shaped opening on the translation plate for installing the wind turbine set, the wind turbine fixing device comprises a counterweight detachable tower base and an embracing fixed truss, both of which are fixedly installed on the translation plate, the embracing fixed truss can be opened or embracing to fix the tower of the wind turbine set.

[0012] In the above technical solution, further, a fixed truss is provided below the cantilevered portion of the first load-bearing plate, and the other end of the fixed truss is fixed to the side of the barge to ensure the stability of the cantilevered portion of the first load-bearing plate.

[0013] Furthermore, a bottom flange is provided at the bottom of the tower for connecting with the top flange of the wind turbine foundation through a second bolt, and an expanded bottom is provided circumferentially at the bottom end of the tower. The opening diameter of the U-shaped opening is larger than the outer diameter of the wind turbine foundation and smaller than the expanded bottom diameter. A plurality of mounting holes are provided on the expanded bottom for connecting the first bolt of the translation plate to fix the bottom of the wind turbine set.

[0014] Furthermore, four translation tracks are symmetrically arranged on the upper surface of the first supporting plate along the two cantilever ends, two on each cantilever end, and a number of translation vehicles are symmetrically arranged on the translation tracks. There are two second supporting plates in total, which are respectively arranged between the two translation tracks of each cantilever beam.

[0015] Furthermore, the translation 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 translation vehicle. A plurality of the hydraulic pumps are arranged on the top of the translation vehicle. The top of the hydraulic pump is fixed to the translation plate to control the lifting and lowering of the translation plate.

[0016] Furthermore, the embracing fixed truss includes a core tube and a tower cage; the core tube is fixed on the translation plate, the counterweight detachable tower base is arranged around the core tube, and the tower cage is fixed to the core tube and the counterweight detachable tower base; a rotating shaft is provided on the tower cage, and two first movable arms and two second movable arms are respectively provided on both sides of the upper part and the lower part of the rotating shaft, and the opening and closing of the first movable arm and the second movable arm are controlled by a second motor drive, thereby realizing the fixation and release of the wind turbine tower.

[0017] Furthermore, the counterweight detachable tower base includes a plurality of stacked counterweight blocks, which are fixed to the translation plate by bolts.

[0018] A method for transporting and installing an offshore wind turbine using translation installation is implemented using any of the above-mentioned devices, and the specific steps include the following:

[0019] Step 1: Wind turbine loading

[0020] The wind turbine tower, nacelle and blades are pre-assembled on shore and assembled as a whole on the barge, or after being assembled as a whole on land, they are translated into the U-shaped opening of the barge translation plate through the track, the bottom of the wind turbine is fixed by the first bolt, and the wind turbine tower is fixed by the first movable arm and the second movable arm to complete the loading; during this process, the translation plate is kept in contact with the second load-bearing plate;

[0021] Step 2: Transport the fan

[0022] The barge is moved by towing by a tugboat, and arrives at the designated point of the wind farm. The bow direction is adjusted so that the wind turbine foundation is located between the two cantilever ends of the first bearing plate of the translation device, and then the barge is anchored and positioned;

[0023] Step 3: Fan in place

[0024] Turn on the hydraulic pump of the translation vehicle, lift the translation plate of the translation device, and disengage the translation plate from the second bearing plate; start the first motor of the translation vehicle, so that the translation plate, carrying the components on it and the fan, moves toward the fan foundation until the fan moves to the top of the fan foundation;

[0025] Step 4: Fan Installation

[0026] After the wind turbine is aligned with the wind turbine foundation, gradually increase the ballast water of the barge to lower the wind turbine and make the bottom flange of the tower contact with the top flange of the wind turbine foundation; tighten the second bolt on the foundation to fix the wind turbine to the wind turbine foundation, then remove the first bolt on the bottom expansion of the wind turbine, and open the first movable arm and the second movable arm for fixing the tower through the second motor;

[0027] Step 5: Barge Evacuation

[0028] After the fan is installed, the first motor of the translation vehicle is started to return the translation plate to the center axis of the barge, and the height of the hydraulic pump is lowered so that the translation plate is supported on the second bearing plate; then the barge is evacuated to complete the fan installation.

[0029] Compared with the prior art, the beneficial effects of the utility model are:

[0030] (1) 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 during transportation, translation and installation by using an embracing fixing truss through the first movable arm and the second movable arm. The bottom of the wind turbine can be fixed by the first bolt on the translation plate. The center of gravity of the wind turbine and the tower as a whole can be lowered by the counterweight at the tower base, thereby effectively enhancing the stability of the wind turbine during transportation. At the same time, the counterweight can be removed to facilitate the transportation of the device.

[0031] (2) The wind turbine is installed by the translation method, without the need for a large crane ship, which breaks through the limitations of the leg length and lifting height of the self-elevating wind turbine installation ship. After the barge is in place, the wind turbine and the tower that fixes the wind turbine are moved together to the top of the wind turbine foundation through the translation device, and the height of the wind turbine is controlled by the ballast water. When the wind turbine fits the wind turbine foundation, the second bolt is fixed to fix the wind turbine and the wind turbine foundation. The entire wind turbine installation process does not require lifting, which greatly reduces the installation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of an overall installation device for an offshore wind turbine according to an embodiment of the utility model;

[0033] Figure 2 This is a top view of the overall installation device of an offshore wind turbine according to an embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of a translation device according to an embodiment of the utility model;

[0035] Figure 4 This is a side view of the translation device of the utility model embodiment;

[0036] Figure 5 This is a top view of the translation device of an embodiment of the utility model;

[0037] Figure 6This is a structural diagram of a translation vehicle according to an embodiment of the utility model;

[0038] Figure 7 This is a schematic diagram of a translation vehicle and a slide rail according to an embodiment of the utility model;

[0039] Figure 8 This is a schematic diagram of a fan fixing device according to an embodiment of the utility model;

[0040] Fig. 9 This is a schematic diagram of a fan fixing device according to an embodiment of the utility model;

[0041] Fig.10 This is a schematic diagram of a fixed truss according to an embodiment of the utility model;

[0042] Fig.11 This is a side view of a fixed truss according to an embodiment of the utility model;

[0043] Fig.12 This is a schematic diagram of the overall installation of an embodiment of the utility model;

[0044] In the figure: 1. barge; 2. translation device; 201. fixed truss; 202. first bearing plate; 203. translation track; 204. translation vehicle; 2041. braking device; 2042. wheel; 2043. first motor; 2044. hydraulic pump; 205. second bearing plate; 206. translation plate; 207. first bolt; 3. wind turbine fixing device; 301. counterweight detachable tower base; 302. embracing fixed truss; 3021. core tube; 3022. tower cage; 3023. rotating shaft; 3024. first movable arm; 3025. second movable arm; 3026. second motor; 4. wind turbine set (also referred to as wind turbine); 401. tower tube; 402. bottom expansion; 5. wind turbine foundation; 501. steel pipe pile; 502. flange; 503. second bolt; DETAILED DESCRIPTION

[0045] 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.

[0046] Example 1

[0047] See also Figure 1-12The utility model provides a specific embodiment of an overall transport and installation device and a method for using an offshore wind turbine using translation installation. In this example, the device includes a barge 1, a translation device 2, a wind turbine fixing truss 3, a wind turbine unit 4, and a wind turbine foundation 5. The translation device 2 is installed on the upper surface of the barge 1, and mainly includes a first load-bearing plate 202, a second load-bearing plate 205, a translation vehicle 204, a translation plate 206, and a first bolt 207, which is a device for realizing the translation of the wind turbine fixing device 3 and the wind turbine unit 4 perpendicular to the long axis direction of the barge. The wind turbine fixing device 3 is installed above the translation plate 204. The wind turbine fixing device 3 mainly includes a counterweight detachable 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 207 of the translation plate 206 to achieve the fixation of the bottom of the wind turbine.

[0048] The first load-bearing plate 202 of the translation device 2 is transversely fixed above the deck of the barge 1. The surface of the first load-bearing plate 202 in contact with the surface of the barge 1 is rectangular, and the part cantilevered out of the barge 1 is "U"-shaped, forming two cantilever ends. The width of the gap between the two cantilever ends is slightly larger than the diameter of the pile foundation and the flange. A fixed truss 201 is provided below the cantilevered part, and the other end of the fixed truss 201 is fixed to the side of the barge 1, thereby ensuring the stability of the cantilevered part of the first load-bearing plate 202.

[0049] The upper surface of the first bearing plate 202 is symmetrically provided with four translation rails 203 along the cantilever direction, and each cantilever end corresponds to two on the first bearing plate; 6 to 10 translation vehicles 204 can be symmetrically provided on the translation rails 203, and the translation vehicles 204 are provided with translation plates 206. The translation vehicles 204 move in the translation rails 203 to achieve translation movement of the translation plates 206 and the wind turbine generator sets 4 on the translation plates 206.

[0050] The translation vehicle 204 includes a brake device 2041, a wheel 2042, a first motor 2043 and a hydraulic pump 2044. The first motor 2043 and the brake device 2041 respectively control the movement and braking of the translation vehicle 204, which can be achieved by any existing method. Figure 6 It is only a schematic diagram, and the specific positions and structural forms of the first motor, the brake device, and the wheels can be adjusted according to the existing methods; a plurality of hydraulic pumps 2044 are provided on the top of the translation vehicle 204, and the top of the hydraulic pump 2044 is fixed to the translation plate 206 to control the lifting and lowering of the translation plate 206.

[0051] A second bearing plate 205 is provided above the first bearing plate 202. There are two second bearing plates 205 in the shape of a rectangular parallelepiped with the same size, which are respectively provided between the two translation rails at each cantilever end. The height of the second bearing plate 205 is higher than the height of the translation rail. The second bearing plate 205 is a supporting device for the translation plate 206 when the wind turbine is transported or parked. That is, when the wind turbine is transported or parked, the hydraulic pump 2044 of the translation vehicle 204 descends, and the translation plate 206 descends accordingly and is fully supported by the second bearing plate 205. Conversely, when the translation plate 206 needs to be moved, the hydraulic pump 2044 lifts up and supports the translation plate 206.

[0052] The translation plate 206 is a rectangular parallelepiped, with a U-shaped opening at the center of the side, the diameter of the U-shaped opening is slightly larger than the outer diameter of the wind turbine foundation 5, and smaller than the outer diameter of the tower expansion bottom 402. A first bolt 207 is arranged around the opening to fix the wind turbine tower expansion bottom 402, and its position and diameter are consistent with the position and diameter of the bolt hole reserved on the expansion bottom 402.

[0053] The wind turbine fixing device 3 includes a counterweight detachable tower base 301 and an embracing fixed truss 302. The counterweight detachable tower base 301 is fixed to the translation plate 206 and is the base of the tower cage in the embracing fixed truss 302. The counterweight detachable tower base 301 is provided with a counterweight block, which is fixed by bolts and can be detached to lower the center of gravity of the wind turbine 4, thereby ensuring the stability of the wind turbine 4 during transportation. At the same time, the counterweight block is detachable, which is convenient for the transportation of the device.

[0054] The embracing fixed truss 302 is a steel space truss structure, including a core tube 3021, a tower cage 3022, two first movable arms 3024, and two second movable arms 3025. The core tube 3021 is a rectangular parallelepiped, arranged at the center of the counterweight detachable tower base 301, fixed to the translation plate to provide the necessary bearing capacity, and is the main force-bearing component of the wind turbine fixing device 3.

[0055] 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 counterweight detachable tower base 301. The first movable arm 3024 and the second movable arm 3025 are provided on both sides of the upper part and the lower part of the tower cage 3022, respectively, and the outer sides of the two opposite movable arms can be tied to further fix the tower. The tower cage 3022 side of the movable arm is provided with a rotating shaft 3023 and a second motor 3026 to control the opening and closing of the first movable arm 3024 and the second movable arm 3025, so as to achieve the fixation and release of the wind turbine tower 401.

[0056] Example 2

[0057] Based on the device of Example 1, the translational overall installation of the offshore wind turbine is realized, and the specific steps are as follows:

[0058] Step 1: Wind turbine loading

[0059] The wind turbine tower, nacelle and blades are pre-assembled on shore and assembled as a whole on the barge 1, or after being assembled as a whole on land, they are translated to the U-shaped opening position of the translation plate 206 of the barge 1 through the track, the bottom expansion 402 of the wind turbine is fixed by the first bolt 207, and the wind turbine tower 401 is fixed by the first movable arm 3024 and the second movable arm 3025, and the loading and fixing are completed.

[0060] Step 2: Transport the fan

[0061] The barge 1 is moved by tugboat towing, and arrives at the designated point of the wind farm. The bow direction of the barge 1 is adjusted so that the wind turbine foundation 5 is located between the two cantilever ends of the first bearing plate 205 of the translation device 2, and then the barge 1 is anchored and positioned.

[0062] Step 3: Fan in place

[0063] Start the hydraulic pump 2044 of the translation vehicle 204, lift the translation plate 206 of the translation device 2, and disengage the translation plate 206 from the second bearing plate 205; start the first motor 2043 of the translation vehicle 204, so that the translation plate moves toward the wind turbine foundation with the components thereon and the wind turbine, until the wind turbine set 4 moves to the top of the wind turbine foundation 5.

[0064] Step 4: Fan Installation

[0065] After the wind turbine set 4 is aligned with the wind turbine foundation 5, the ballast water of the barge is gradually increased to make the wind turbine set 4 descend and the bottom flange of the tower contact with the top flange 502 of the wind turbine foundation 5; the second bolt 503 on the foundation is tightened to fix the wind turbine set 4 to the wind turbine foundation 5, and then the first bolt 207 on the bottom expansion 402 of the wind turbine is removed, and the first movable arm 3024 and the second movable arm 3025 for fixing the tower 401 are opened by the second motor 3026.

[0066] Step 5: Barge Evacuation

[0067] After the wind turbine 4 is installed, the first motor 2043 of the translation vehicle 204 is started to return the translation plate 204 to the central axis of the barge 1, and the height of the hydraulic pump 2044 is lowered to support the translation plate 206 on the second bearing plate 205; then the barge 1 is evacuated to complete the installation of the wind turbine 4.

[0068] 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 overall transport and installation device for offshore wind turbines using translation installation, characterized in that: The invention comprises a barge (1), a translation device (2), a wind turbine fixing device (3), a wind turbine set (4), and a wind turbine foundation (5); the translation device (2) comprises a first bearing plate (202), a second bearing plate (205), and a translation plate (206); the first bearing plate (202) is fixed on the barge (1), and one end of the first bearing plate is cantilevered out of the barge (1); the end is U-shaped to form two cantilever ends for enabling the wind turbine foundation (5) fixed on the seabed to enter the U-shaped end through the movement of the barge (1); the first bearing plate (202) is provided with a plurality of translation rails (203) perpendicular to the long axis direction of the barge (1); the second bearing plate (205) is fixed on the first bearing plate (202) and is higher than the translation rails (203); a translation vehicle (204) is provided on the translation rails (203); the translation plate (206) is located on the second bearing plate (205) and fixed on the translation vehicle (204), a U-shaped opening is provided on one side of the translation plate (206) close to the cantilever end of the first bearing plate (202), a plurality of first bolts (207) are provided along the U-shaped opening on the translation plate (206) for installing the wind turbine (4), the wind turbine fixing device (3) comprises a counterweight detachable tower frame base (301) and an embracing fixed truss (302), both of which are fixedly installed on the translation plate (206), the embracing fixed truss (302) can be opened or embracing a tower (401) for fixing the wind turbine (4), the counterweight detachable tower frame base (301) comprises a plurality of stacked counterweight blocks, which are fixed to the translation plate (206) by bolts, the bottom of the tower (401) is provided with a bottom flange for connecting with the top flange of the wind turbine foundation by second bolts, and a flared bottom (402) is provided in the circumferential direction of the bottom end of the tower.

2. The overall transport and installation device for offshore wind turbines using translation installation according to claim 1 is characterized in that: A fixed truss (201) is provided below the cantilevered portion of the first load-bearing plate (202), and the other end of the fixed truss (201) is fixed to the side of the barge (1) to ensure the stability of the cantilevered portion of the first load-bearing plate (202).

3. The overall transport and installation device for offshore wind turbines using translation installation according to claim 1 is characterized in that: The opening diameter of the U-shaped opening is larger than the outer diameter of the wind turbine foundation (5) and smaller than the diameter of the expanded bottom (402), and the expanded bottom (402) is provided with a plurality of mounting holes for connecting the first bolt (207) of the translation plate (206) to achieve the fixation of the bottom of the wind turbine set.

4. The overall transport and installation device for offshore wind turbines using translation installation according to claim 1 is characterized in that: Four translation rails (203) are symmetrically arranged on the upper surface of the first bearing plate (202) along the two cantilever ends, two rails on each cantilever end, and a plurality of translation vehicles (204) are symmetrically arranged on the translation rails (203). The second bearing plate (205) has two pieces in total, which are respectively arranged between the two translation rails of each cantilever beam.

5. The overall transport and installation device for offshore wind turbines using translation installation according to claim 1 is characterized in that: The translation vehicle (204) comprises a braking device (2041), wheels (2042), a first motor (2043) and a hydraulic pump (2044); the first motor (2043) and the braking device (2041) respectively control the movement and braking of the translation vehicle (204); a plurality of hydraulic pumps (2044) are arranged on the top of the translation vehicle (204); the top of the hydraulic pump (2044) is fixed to the translation plate (206) for controlling the lifting and lowering of the translation plate (206).

6. The overall transport and installation device for offshore wind turbines using translation installation according to claim 1 is characterized in that: The embracing fixed truss (302) comprises a core tube (3021) and a tower cage (3022); the core tube (3021) is fixed on the translation plate (206), the counterweight detachable tower base (301) is arranged around the core tube (3021), and the tower cage (3022) is fixed to the core tube (3021) and the counterweight detachable tower base (301); a rotating shaft (3023) is provided on the tower cage (3022), and two first movable arms (3024) and two second movable arms (3025) are respectively provided on both sides of the upper part and the lower part of the rotating shaft (3023), and the first movable arms (3024) and the second movable arms (3025) are driven by a second motor (3026) to control the opening and closing of the first movable arms (3024) and the second movable arms (3025), thereby realizing the fixing and release of the wind turbine tower (401).

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