• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    offshore foundation for wind power installations. the present invention relates to an offshrore support structure (1) for wind power installations with multiple, preferably six specifically tubular piles (2) that can be anchored in the sea bottom (2) and a truss structure (4 ) assembled from multiple bars specifically steel tubes (14) according to the invention it is proposed that the truss structure (4) be assembled from multiple, prefabricated truss segments (6, 8, 10, 12), where each truss segment (6,8,10,12) has six corners (3) that can be attached to the corners (3) of another truss segment (6,8,10,12)
    公开号:BR112013028971B1
    申请号:R112013028971-6
    申请日:2012-03-16
    公开日:2020-09-29
    发明作者:Emilio Reales Bertomeo
    申请人:Maritime Offshore Group Gmbh；
    IPC主号:
    专利说明:

    [001] The present invention relates to an offshore support structure for wind power installations. Such foundations or support structures are used to anchor wind power installations securely to the seabed.
    [002] For some time, wind power installations have been installed not only onshore, that is, on land, but also offshore, that is, at sea, for example, in the offshore wind farms in the North Sea and in the Baltic Sea. Offshore wind power installations are subject to extreme conditions. For example, they are anchored at sea depths of 20 to 60 meters using a foundation. The foundation, which can also be referred to as a support structure, is subjected to mechanical and chemical loads and sea currents. Different types of offshore foundations are known, for example, monopillary, jacket, tripod, tripolar or bucket designs. This invention mainly relates to a jacket construction design. This is a truss made of steel.
    [003] The objective of this invention is to present an offshore foundation or support structure for wind energy installations, in a specific way an offshore foundation that can be manufactured, transported, assembled and / or repaired with little effort or expense.
    [004] The invention solves this problem using an offshore support structure with multiple, preferably six, piles that can be anchored to the seabed and are specifically tubular, and a composite truss structure consisting of many bars, specifically tubes steel, so that the truss structure can be made of multiple prefabricated truss segments, where each truss segment has six corners that can be connected to the corners of another truss segment.
    [005] Steel tubes are preferably fixed to the truss structure using knots. This type of node preferably connects two or more, specifically, at least three tubes to each other. The truss segments are designed to be hexagonal, according to the invention. Here, a hexagonal design basically refers to a cross section of the truss segment. The lattice segments will preferably have a hexagonal cross-section in relation to a central geometric axis and will preferably have a basically cylindrical or conical shape. The hexagonal shape of the support structure, in particular, which is preferably supported by six piles that can be anchored to the seabed, is advantageous because it offers advantageous load transfer. The support structure is also highly rigid and stable, allowing the total weight and therefore the amount of materials used in the support structure to be reduced.
    [006] According to another aspect of the invention, or a preferred embodiment, the problem specified at the beginning will be solved by a support structure, where the truss segments are basically constructed of HFIW tubes. HFIW (high frequency induction welding) tubes are easy to manufacture, as sheet metal is wound, formed into tubes and then sealed along its length with a HFIW weld seam. Such tubes are readily available and inexpensive. The benefit of building the support structure for this type of pipe is that costs can be reduced. In addition, the manufacturing times for this type of support structure are shortened because HFIW tubes are readily available on the market.
    [007] In another aspect or a preferred embodiment, the support structure solves the problem specified above with a support structure, where some or all of the nodes in the prefabricated truss segments are made of double-walled tube structures. It is easy to manufacture this type of double-walled tube structure. These tubes offer a simple method of connecting the tubes. This type of double-walled tube structure will preferably be formed by heating a section of the tube or tube axis. A second tube section, which has an outer diameter that is basically equal to the inner diameter of the heated tube axis, is therefore inserted into the heated tube axis. The tube axis is shrunk by rapid cooling, forming a connection between the tube axis and the tube section with the smallest diameter. The tube section with the smaller diameter is then positioned inside the tube axis in such a way that a small part of it protrudes from the tube axis, allowing a second tube to be pressed onto the protruding part of the tube section with the smallest diameter. Costs are further reduced using this simple connection method.
    [008] In a preferred embodiment, the support structure consists of six piles on the seabed, which are basically positioned parallel to each other. The piles are arranged to support the support structure, which will preferably be high enough that it basically reaches the bottom of the sea to the water surface. As the piles are basically parallel to each other, and basically perpendicular to the water's surface, they are particularly easy to anchor to the seabed. They will preferably be of a length that provides the secure support of the support structure.
    [009] According to another preferred modality, a truss segment will be fixed to the piles by multiple base nodes where, in each case, there will be a node at the top end of a pile and in a corner of the truss segment. Therefore, the support structure can be connected using base nodes. Preferably, according to this modality, there will be connecting elements in the piles and in the base nodes that can be used to fix the support structure to the piles. These connecting elements will preferably be designed, so that the manufacturing and assembly tolerances are balanced. This allows for easy assembly.
    [0010] These base nodes will preferably be distributed on a plane, which will be defined by the upper end sections of the submerged piles on the seabed. This plane will preferably be uniformly hexagonal.
    [0011] It is particularly preferable that four tubes in the truss structure can be attached to each other using the base nodes. Being able to attach four tubes to the base nodes means that the support structure will be very stable.
    [0012] According to another preferred embodiment, at least one truss segment will have an intermediate knot at each corner, which can be used to fix the truss segment to another truss segment. The intermediate nodes therefore represent the connection point between two lattice segments arranged on top of each other. Here, being placed one on top of the other refers to the standard installation of the support structure on the seabed. An upper truss segment, therefore, applies force to a lower truss segment through the intermediate nodes. The intermediate nodes are preferably arranged in such a way that they are located on a plane and define a uniform hexagon. Preferably, the intermediate nodes will also be aligned, so that the hexagon they define is concentrically arranged, in relation to the hexagon defined by the submerged piles on the seabed. This allows for a good transmission of force and makes the support structure very stable.
    [0013] Preferably, six tubes can be connected to each other using the intermediate node. Preferably, it will be possible to arrange two of these tubes, so that they are situated in the plane defined by the intermediate nodes, and the other two point upwards or point downwards and form part of the adjacent lattice segments. These will allow the best possible connection to the adjacent truss segments. This also stabilizes the support structure and reduces the amount of material required.
    [0014] Preferably, each truss segment will have at least one transverse node, where a transverse node is placed between the lower corners of a truss segment and the upper corners of a truss segment. These transverse nodes are well suited as connecting elements between two planes bounded by the lattice segments. A transverse knot is also preferably used in the support structure to actually transmit any torsional forces. This additionally increases stability, but it also means that less materials are required.
    [0015] Preferably, these transversal nodes will have a structure basically in the form of x.
    [0016] According to another preferred modality, at least one truss segment will have upper nodes in the upper corners, in which three tubes can be connected together. This type of truss segment is particularly well suited as the upper segment. This will preferably form the end segment of the support structure, which reaches or above the water surface.
    [0017] It is particularly preferred that the steel tubes are connected to the respective nodes using orbital welding. This is particularly beneficial if the nodes are made of double-walled tube structures. A tube can then be slid along the smallest protruding tube of the node and connected to the node using orbital welding. Therefore, the tube axis of the node will preferably have basically the same outside diameter as the outside diameter of the tube. Orbital welding is a process that is particularly well suited to fix this type of pipe structure. This allows the support structure to be produced even more advantageously, thereby reducing costs. In addition, the use of orbital welding for weld seams produces higher quality goods, thereby improving the service life and load capacity of the support structure.
    [0018] In another preferred mode, there will be an interface for mounting a wind power installation tower above the truss structure. The interface will preferably be located at a height that is above the sea surface. Through the use of such an interface, the support structure can be connected to the tower in a particularly easy way, thus simplifying the assembly.
    [0019] It is also preferable to have an accessible platform under the interface, located approximately in the upper corner area of the upper truss segment. Such an accessible platform can be used as a landing stage for service vessels. This type of platform will also allow access to the maintenance team that needs to maintain the wind energy installation mounted on the support structure. This will make it easier to operate the support structure.
    [0020] According to another embodiment, it is preferable that the tubes have a wall thickness of up to approximately 30 mm, preferably in the range of approximately 25.4 mm, and / or are manufactured using a wide strip process laminated to hot. Such wall thicknesses are particularly well suited to the support structure. They offer excellent stability without requiring the use of unnecessarily large amounts of materials. This also allows costs to be reduced. The hot rolled wide strip process is also a simple way to manufacture this type of pipe. Preferably, the tubes are finally fixed using a HFIW weld seam.
    [0021] In another preferred embodiment, the tubes will be at least partially coated with a coating, specifically, a plastic coating. Therefore, the support structure is adapted for use at sea. The salt content of seawater makes it a highly corrosive environment for the support structure. The coating of the support structure will protect it against corrosion, thus increasing the life of the support structure. This also reduces maintenance costs.
    [0022] It is particularly preferable that the support structure has six piles and three or four truss segments. Three or four truss segments are preferred segment numbers, although, on the one hand, a support structure with the correct height can be manufactured and, on the other hand, good stability can be achieved with less materials.
    [0023] Preferably, the piles and bars of the truss structure will be made of steel. Steel is a readily available material that guarantees good stability. Steel is also inexpensive.
    [0024] When assembling a support structure, according to the invention, the following procedure is preferred. First, the work platform or nodes that can be attached to a work platform or that can form an interface for the installation of wind energy is / are attached to an assembly stage. Such an assembly stage will preferably be of height adjustable. This will preferably be built on a ship or on land. The support structure will then be built from the top down. This means that the next step is preferably used to fix the upper segment under the work platform or any equivalent. This segment, then, can also be at least partially prefabricated and then assembled and fitted. Alternatively, the individual steel tubes can be individually attached to the nodes attached to the assembly stage. This will preferably be done using orbital welding. After one segment is completed, the next segment will be docked. The segment with the base nodes will be the last segment to be docked. Then, the truss structure built in this way can be mounted on the submerged piles at the bottom of the sea.
    [0025] By way of example, the invention is described in more detail below using some exemplary modalities, with reference to the attached drawings. The Figures show the following:
    [0026] Figure 1 is a first example of an offshore foundation in a perspective view;
    [0027] Figure 2 is a second example of an offshore foundation in a perspective view;
    [0028] Figure 3 is a third example of an offshore foundation in a perspective view;
    [0029] Figure 4 is an intermediate node;
    [0030] Figure 5 is an upper node;
    [0031] Figure 6 is a cross node; and
    [0032] Figure 7 is a base node.
    [0033] According to Figure 1, the offshore support structure 1 for wind power installations has six piles that can be anchored to the seabed (only two have reference numbers). A truss structure 4 is attached to the piles 2. The truss structure 4 is designed to be basically in a conical or trunk shape and basically has a rectangular cross section based on a longitudinal geometric axis of the truss structure 4. It is connected by its six lower corners 3a (only one has a reference number) to the six piles 2. The truss structure 4 has four segments 6, 8, 10, 12, which are placed one on top of the other, basically coaxially in relation to each other. The truss structure 4, as well as the segments 6,8,10,12 are formed by tubes 14 (only one has a reference number), which are fixed to each other by nodes 20, 22, 24, 26.
    [0034] Each segment 6,8,10,12 has a basically conical or trunk shape and has a hexagonal cross-section which, consequently, is uniformly hexagonal. A segment 6, 8, 10, 12, therefore, has six lower corners 3a, 3b, 3c, 3d and six upper corners 3a, 3b, 3c, 3d (only one of each type of corner has a reference number). Therefore, for example, the lower segment 6 has six lower corners 3a (only one has a reference number) and six upper corners (only one has a reference number). The six upper corners 3b of the lower segment 6 simultaneously form the lower corners 3b of the second lower segment 4. In corners 3a, 3b, 3c, 3d, according to this example, there are base 20 nodes or intermediate nodes 24. The base nodes 20 and the intermediate nodes 24, therefore, are basically connected to the horizontally located tubes 14 which thus form a basically uniform hexagon. The upper corners 3a, 3b, 3c, 3d of each segment 6, 8, 10, 12 are also connected to the lower corners 3a, 3b, 3c, 3d of each segment 6, 8, 10, 12 through tubes 14 and cross nodes 22 in a vertical and spaced direction. The tubes 14 and transverse nodes 22, therefore, are arranged in the truss structure 4, so that they are basically located on a lateral surface of the truss structure 4. The interior of the truss structure 4 is therefore hollow or free. tubes and clamps. The precise configuration of individual nodes 20, 22, 24, 26 can be seen in Figures 4 to 7.
    [0035] At the upper end of the support structure 1, an interface 16 is positioned on the truss structure 4 to maintain a wind power installation. The interface 16, therefore, is attached to the upper nodes 26 of the upper segment 12. A work platform 18 is also located at the interface 16. For example, service vessels used by the maintenance team to reach support structure 1 can land on this work platform in order to maintain one of the wind energy installations attached to it.
    [0036] Although support structure 1 is particularly well suited for large wind power installations with tall towers and high exits, according to the first exemplary embodiment (Figure 1), support structures 1 are also well suited for installation installations. smaller wind energy, according to the second and third exemplary modalities (Figures 2 and 3).
    [0037] The modalities that refer to the support structures 1, according to the second and third exemplary modalities (Figure 2 and Figure 3), are identical and equipped with similar elements with the same reference numbers. In this respect, reference is made exhaustively to the description above of the support structure 1, according to the first exemplary modality (Figure 1).
    [0038] The support structure, according to the second exemplary modality (Figure 2), has six piles 2 that can be anchored to the seabed. The truss structure 4 of the support structure 1 has three segments 6, 8, 10, which are placed on top of each other, basically coaxially in relation to each other. All segments 6, 8, 10 have a basically hexagonal cross section, based on a longitudinal geometric axis that is basically formed according to a uniform hexagon. Although the lower segment 6 is, therefore, conical or trunk shaped, both upper segments 8, 10 are basically cylindrical.
    [0039] The truss structure 4 and segments 6, 8, 10 are formed, as in the first exemplary modality (Figure 1), of tubes 14 and nodes 20, 22, 24, 28. The upper nodes 28, according to the second exemplary modality (Figure 2), are slightly different from the upper nodes 26, according to the first exemplary modality (Figure 1). The reason for this is the fact that the interface 16 for maintaining the wind energy installation, according to the second exemplary modality, is designed slightly differently from the interface 16, according to the first exemplary modality.
    [0040] The support structure 1, according to the third exemplary modality (Figure 3), has a lattice structure 4 formed by three segments 6, 8, 10, which are basically cylindrical with a hexagonal cross section. Contrary to the first two exemplary modalities (Figures 1 and 2), the support structure 1, according to the third exemplary modality, has only four piles 2 that can be anchored to the seabed. The upper sections of the piles 2 are fixed on specially formed fixing clamps 30 (it has only a reference number), so that the hexagonal segment 6 can be fixed to the fixing clamps 30 using the base nodes 20. The frame fit of support 1 with only four piles 2 can be advantageous if the wind energy installation that is mounted on the support structure 1 is smaller, or if the seabed does not allow more than four piles 2 to be introduced.
    [0041] Figures 4 to 7 illustrate the various nodes 20, 22, 24, 26 in detail. According to Figure 4, an intermediate node is designed to be able to form a corner 3 of a support structure 1 (not shown in Figures 4 to 7). The intermediate node 24 is designed as a double wall tube structure and is constructed in order to connect the six tubes 14 to each other. Tubes 14 are preferably HFIW tubes and fixed to nodes 24 using orbital weld seams.
    [0042] The upper node 26 illustrated in Figure 5 has a basically V or Y shape and is constructed in order to connect the three tubes 14 to each other. The tubes 14, in turn, are fixed by orbital welding to nodes 26 (only one weld seam 15 has a reference number). The upper tube 14 shown in Figure 5 is constructed so that it can be attached to a platform 18 or an interface 16 of the support structure 1 (not shown in Figure 5). The two lower tubes (shown in Figure 5) will preferably form part of an upper segment 10 or 12.
    [0043] The cross node 22 shown in Figure 6 is basically X-shaped and includes two acute angles and two obtuse angles between its arms. The cross node 22 is constructed to connect four tubes 14 to each other. The tubes 14, therefore, are connected to each other by the transverse node, so that they are basically located on a plane.
    [0044] The base node 20 (Figure 7) is built to connect four tubes 14 to each other. Base node 20 also has an interface 21 for connecting piles 2 (not shown in Figure 7).
    [0045] All nodes 20, 22, 24, 26 are preferably designed as double-walled tube structures. The tubes 14 are preferably fixed using orbital welding to nodes 20, 22, 24, 26.
    权利要求:
    Claims (15)
    [0001]
    1. Offshore support structure (1) for wind energy installations comprising, several tubular piles (2), preferably six, that can be anchored to the seabed, and a truss structure (4) that can be connected to the piles ( 2) and is composed of a multiplicity of bars, in particular steel tubes (14), characterized by the fact that the truss structure (4) comprises several truss segments (6, 8, 10, 12) arranged one above the other (6, 8, 10, 12) and at least one truss segment (6, 8, 10, 12) has an intermediate knot (24) at each corner (3), through which the truss segment ( 6, 8, 10, 12) can be connected to another truss segment (6, 8, 10, 12), with the truss segments (6, 8, 10, 12) being prefabricated and each truss segment (6, 8, 10, 12) has six lower corners (3) and six upper corners (3) that can be connected to the corners (3) of an additional truss segment (6, 8, 10, 12), with intermediate nodes ( 24) of the six lower corners (3) and the intermediate nodes (24) of the six upper corners (3) are arranged in such a way that they are in a plane and define a uniform hexagon and are each connected to tubes essentially placed horizontally ( 14), thus forming an essentially uniform hexagon, with each truss segment (6, 8, 10, 12) having at least one transverse node (22), with a transverse node (22) being arranged between the lower corners ( 3) a lattice segment (6, 8, 10, 12) and the upper corners (3) of a lattice segment (6, 8, 10, 12) and through the cross node (22) four can be connected tubes (14) to each other, of a truss segment (6, 8, 10, 12), and an interface (16) is arranged at an upper end of the support structure (1) on the truss segment (4) to accommodate a wind power installation, and the interface (16) is connected to the highest truss segment (12).
    [0002]
    2. Support structure (1), according to claim 1, characterized by the fact that the truss segments (6, 8,10,12) are basically assembled from HFIW tubes (high frequency induction welding) (14).
    [0003]
    3. Support structure (1) according to claim 1 or 2, characterized by the fact that some or all of the nodes (20, 22, 24, 26, 28) in the prefabricated truss segments (6, 8 , 10, 12) are made of double-walled tube structures.
    [0004]
    4. Support structure (1) according to any of the preceding claims, characterized by the fact that six piles (2) are submerged in the seabed, basically parallel to each other.
    [0005]
    Support structure (1) according to any one of the preceding claims, characterized by the fact that a truss segment (6, 8, 10, 12) is fixed to the piles (2) by multiple base nodes (20) , where each individual node (20) is located at the top end of a pile (2) and in a corner (3a) of the truss segment (6).
    [0006]
    6. Support structure (1), according to claim 5, characterized by the fact that the base nodes (20) are basically arranged in a plane, which is defined by the upper end sections of the piles (2) submerged in the seabed.
    [0007]
    Support structure (1) according to claim 5 or 6, characterized in that four tubes (14) of the truss segment (6) can be connected to each other via the base node (20).
    [0008]
    8. Support structure (1), according to claim 1, characterized by the fact that each cross node (22) is basically X-shaped.
    [0009]
    9. Support structure (1) according to any of the preceding claims, characterized by the fact that at least one truss segment (6, 8, 10, 12) has an upper knot (26,28) at each corner top (3), in which three tubes (14) can be connected to each other.
    [0010]
    10. Support structure (1) according to any of the preceding claims, characterized by the fact that the tubes (14) are fixed to the nodes (20, 22, 24, 26, 28) using orbital welding.
    [0011]
    11. Support structure (1), according to claim 1, characterized by the fact that there is an accessible platform (18) under the interface (16), located approximately in the area of the upper corners (3) of a truss segment higher (10, 12).
    [0012]
    Support structure (1) according to any one of the preceding claims, characterized in that the tubes (14) have a wall thickness of up to approximately 30 mm, preferably approximately in the range of 25.4 mm , and / or are manufactured using a hot rolled wide strip process.
    [0013]
    Support structure (1) according to any one of the preceding claims, characterized in that the tubes (14) are at least partially coated with a coating, specifically coated with a plastic.
    [0014]
    14. Support structure (1) according to any one of the preceding claims, characterized by the fact that the support structure (1) has six piles (2) and three or four truss segments (6, 8, 10, 12).
    [0015]
    15. Support structure (1) according to any one of the preceding claims, characterized by the fact that the piles (2) and bars of the truss structure (4) are made of steel.
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    同族专利:
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    WO2012152483A2|2012-11-15|
    BR112013028971A2|2017-02-07|
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    法律状态:
    2018-03-27| B15K| Others concerning applications: alteration of classification|Ipc: E02D 27/52 (2006.01), E02B 17/00 (2006.01), E02D 2 |
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-15| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-04-28| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2020-07-21| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-09-29| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 16/03/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    2022-01-11| B21F| Lapse acc. art. 78, item iv - on non-payment of the annual fees in time|Free format text: REFERENTE A 10A ANUIDADE. |
    优先权:
    申请号 | 申请日 | 专利标题
    DE202011100627.5|2011-05-12|
    DE202011100627|2011-05-12|
    DE202011101599.1|2011-05-31|
    DE202011101599U|DE202011101599U1|2011-05-12|2011-05-31|Offshore foundation for wind turbines|
    PCT/EP2012/054700|WO2012152483A2|2011-05-12|2012-03-16|Offshore foundation for wind energy installations|
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