• 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:
    The invention relates to an anchoring system with attachment means connectable to anchoring (20), towing and lowering (19) cables, and guide wires (17, 18) of electric power and signal transmission cables, and means of fixation to the marine bottom. The system has at least one passage tube (7) inside for the passage and fastening of electric power and signal transmission cables. Additionally, the invention relates to a method of installing a seabed anchoring system, where a main structure (1) is made on land and the necessary cables are installed, the main structure (1) is towed to a desired point and low fixing it to the seabed. Finally, electric power and signal transmission cables are placed in at least one passage tube (7) inside the main structure (1). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2695308A1
    申请号:ES201730847
    申请日:2017-06-27
    公开日:2019-01-03
    发明作者:Piñeiro Amable López；Rivas Luis Ramón Nuñez；Sánchez José Andrés Somolinos
    申请人:Universidad Politecnica de Madrid；
    IPC主号:
    专利说明:

    [0001]
    [0002] Anchoring system and method of installation of anchor system on the seabed
    [0003]
    [0004] Field of the invention
    [0005]
    [0006] The present invention belongs to the technical field of renewable energies, specifically to marine renewable energies, and more specifically to the auxiliary systems of anchoring and power connection of the devices of exploitation of marine renewable energies of first and second generation. The invention relates in particular to an anchoring system with attachment means for connecting the anchor and trailer wiring, seafloor fastening means, and means for passage and fastening of power transmission, signal and communications wiring.
    [0007]
    [0008] Background of the invention
    [0009]
    [0010] At present, different types of systems are known for the use of marine renewable energies, including wind systems and the use of energy from marine currents and waves.
    [0011]
    [0012] In the development of devices for the use of marine renewable energies is going from systems of first generation, which are those that support the seabed and are limited to depths of about 40 m, to the second generation, necessary for depths greater than 40 m, with which the extension of the exploitation areas increases considerably, being able to cover the entire continental shelf.
    [0013]
    [0014] This evolution is taking place, both in the devices for harnessing the wind energy, and in those that capture the energy of currents and waves. In all these cases it is necessary to have two systems that connect the device with the seabed:
    [0015] In the first place, the anchoring system, which maintains it, with a certain flexibility, in a determined position, by means of cables or chains attached to anchors or anchoring bases that are fixed on the seabed.
    [0016]
    [0017] Additionally, a power and signal connection system, and communications composed of umbilical cables, which connect the device with others in the park or with a central station, are necessary.
    [0018]
    [0019] At present, these two systems are usually independent, sharing only the use of the seabed and that both systems are connected to the energy utilization device, although at different points. For this reason, different fastening elements are required and, above all, separate installation processes, which complicates and makes more expensive the assembly, maintenance and disposal procedures.
    [0020]
    [0021] Some of the second generation wind energy harnessing systems and anchoring systems used are described in documents ES2284411B2, ES2341311B2, ES2367616B2 and ES2461440B2.
    [0022]
    [0023] A particularly complex anchoring system is the adjustable single-point type. In this case, there is an added problem that is the crossing of the anchor cables (which must be hooked very close to the bottom) with the power and signal connection cables, also called umbilicals. The problem is complicated if there are two or more umbilical cables (which should be separated several meters) for the connection in series between the devices of a power utilization park.
    [0024]
    [0025] As antecedent closer to this invention, is the funding system of TEC Triton of the company TidalStream Ltd, which uses as anchor base a platform by gravity with a special connection system and rigid arms between the base and the structure main device that supports the generators. This design is protected by the patent application WO2012153107A1. This system has the disadvantages of requiring the rigid arms and a rotary connection system, which raises the costs of manufacturing, installation and maintenance.
    [0026]
    [0027] It is therefore desirable an anchoring system for systems of exploitation of marine renewable energies that provide simultaneously and efficiently the funding of the devices, and the connection of energy and signals, avoiding the drawbacks of the previous methodology existing in the state of the art.
    [0028]
    [0029] Description of the invention
    [0030]
    [0031] The present invention solves the problems existing in the state of the art by means of an anchoring system as described in claim 1.
    [0032]
    [0033] This anchoring system integrates the anchoring operation by means of chains or anchoring cables with the fastening of electric power and signal cables, also called umbilicals
    [0034]
    [0035] This anchoring system is formed by a main structure, which is divided into an upper part and a lower part.
    [0036]
    [0037] In the upper part, the main structure has a plurality of connecting means connectable to different anchoring cables, to towing and lowering cables, and to cables for electrical cables for power and signal transmission.
    [0038]
    [0039] In the lower part the main structure has fixing means to the seabed.
    [0040]
    [0041] The main structure has in its interior at least one passage tube, configured for the passage and fastening of electric power and signal transmission cables.
    [0042]
    [0043] Preferably, there will be several separate passage tubes for the passage and fastening of different electric power and signal transmission cables when these have to be separated, thus preventing the cables from contacting each other.
    [0044]
    [0045] According to a particular embodiment of the invention, the lower part of the main structure has several holes, and the fixing means to the sea bottom are formed by refillable bags of concrete arranged in said holes. These means of fixation by means of refillable bags of concrete are used preferably for hard marine floors, formed for example by gravel, stone or rock. In these funds the system is fixed by gravity.
    [0046]
    [0047] In this case, the main structure will be preferably built in reinforced concrete with an external form of pyramid trunk to reduce horizontal forces and scouring (dragging the bottom material) with a structure, formed by the lid, the four sides and two central beams that form a cross, leaving four bell-shaped gaps, that is, it does not close at the bottom.
    [0048]
    [0049] Each of the bell-shaped recesses has a cylindrical inlet in the upper part, through which the handling of the float bags and the filling of concrete is carried out. The system is completed with several steel poles placed in the center of the cover, for the hooking of the anchoring cables, four at the ends for transport and installation and two passages, quasi horizontal, placed inside the Longitudinal central beam, which intersect without intersecting, through which pass the electric power and signal transmission cables.
    [0050]
    [0051] In contrast, for soft marine soils, such as sand, silt or clay, an alternative embodiment of the invention has fastening means formed by guide tubes configured for the introduction through their interior of piles and insertable slide pipes on the seabed. .
    [0052]
    [0053] A particular embodiment of the invention has a buoy configured to allow the crossing of cables. This buoy is formed by an elongated central float, there being on each side of the central float a piece of crossover cables, which has means of attachment to anchoring cables, and at least one through hole, for the passage of electrical transmission cables of energy and signal, or umbilical cables.
    [0054]
    [0055] This buoy solves the problem of the crossing of the anchoring cables with the umbilical cables. It is composed of a support tube, surrounded by a float in the central part, ending at both ends in pieces that include a through hole and two hooks, one located on the inside of the piece and one on the outside.
    [0056] At each end of the buoy, the section of the anchoring cable that goes to the module, is hooked to the inner canopy and the section that ascends towards the device in the outer canopy, passing the umbilical cable through the hole located between both cancams. In this way, it is possible to fix the crossing between the anchoring system and the energy exportation system in a controlled manner, without rubbing cables in others.
    [0057]
    [0058] Another effect of the buoy is that, thanks to its buoyancy, it is not necessary to have cables with floats in the lower half. These floats are necessary so that each cable, when the speed of the current is low, adopts an S-shape and does not rub against the bottom. The mooring cables can be galvanized or synthetic-type steel cables, with the corresponding swivel and hook-and-loop shackles at the ends. The umbilical cables (which have to be of dynamic type, since they will be hanging), can have a uniform section from end to end (from one device to the next or to the platform of connection of the park) which reduces their cost and , above all, simplifies its handling on board the cable ship.
    [0059]
    [0060] This integrated anchoring system allows the operation in places with tidal currents with odografa (velocity plane) of elliptical or loop shape, automatically orienting itself in the direction of the current.
    [0061]
    [0062] Additionally, the present invention shows a method of installing the anchoring system as described in the revindication 7.
    [0063]
    [0064] This method of installing the seafloor anchoring system has the following stages:
    [0065]
    [0066] First, a main structure is manufactured on land.
    [0067]
    [0068] Then, anchoring, towing and lowering cables are installed, so! as gula cables for electrical power and signal transmission cables in the upper part of the main structure.
    [0069]
    [0070] Then the main structure is towed afloat to the desired point by means of the towing and lowering cables, and said main structure is lowered to the seabed. Once the main structure is lowered, it is fixed to the seabed.
    [0071] Finally, the electric cables for power and signal transmission, that is, the umbilical cables, are installed by means of the cables in at least one passage tube arranged inside the main structure.
    [0072]
    [0073] According to a particular embodiment of the method object of the invention, prior to the towing of the main structure, bags are inflated with air arranged in holes in the lower part of the main structure. Subsequently, once the main structure has been towed to the desired point, the bags will be deflated and these will be filled with concrete, to fix the main structure to the seabed. This method is applicable mainly in hard marine soils, gravel, rocks or rock.
    [0074]
    [0075] In this case, the system can be built on land by means of a support or slab mold, on a beach, dike or floating platform. Before being thrown or deposited in the water, they are placed (in each hole or bell) enveloping bags with inflatable floats inside, which provide the necessary buoyancy for transport. Also attached to the module are the anchor cables (in the center of the cover), the towing and lowering cables (at the 4 ends of the cover), the concrete guidance (in the 4 holes of the cover) and the guiding of the electric cables of power and signal transmission (crossing the pass pipes).
    [0076]
    [0077] Each inflatable float has a hose of sufficient length for the emptying of the air (and its withdrawal), which rises to the surface of the water when the module has been placed in the bottom. All these cables and tubes are properly stowed in the cover of the module and have their free ends hooked in buoys so that they remain on the surface when the module sinks. Once this preparation is completed, the module, being self-floating, can easily be dragged to the installation area with the help of a port tug.
    [0078]
    [0079] When you reach the installation area, with the help of two tugs, the module is positioned and, deflating the floats and holding the four cables down (two with each tug), you will let the module descend smoothly to the bottom, correcting the horizontal position (which can be measured with a Submarine acoustic positioning system) pulling the cables. For this operation it is convenient that the tugs have a dynamic positioning system.
    [0080]
    [0081] Once the main structure is placed in the bottom, the floats (which are extracted through the holes of the covers pulling their hoses) are finished deflating, the enveloping bags remain and the floats and the transceiver of the acoustic system are recovered.
    [0082]
    [0083] Then, with the help of the concrete guide wires (placed in the holes of the covers) a hose is lowered with which the enveloping bags are filled with a mixture (cement, sand and gravel), which when in contact with the water, it is set. In this way, the weight of the module is increased and its base adapts to the shape of the background.
    [0084]
    [0085] After these operations the system is fixed to the bottom, being able to loosen all the cables, except those of glula of the umbilicals. When it is desired to install one of the umbilical wires, it is hooked (on the surface) to one end of the guide and the other end is pulled, until, passing through the corresponding tube, the end of the umbilical appears again on the surface of the umbilical. sea.
    [0086]
    [0087] Alternatively, for soft marine soils, for example sand, silt or clay, there is an alternative realization of the method, in which the main structure is fixed to the seabed by the introduction of piles and sliding tubes through guide tubes arranged in the main structure and the insertion of these on the seabed. In this case, the main structure can be constructed in steel instead of reinforced concrete and at its ends four vertical tubes will be placed on which sliding piles or suction anchor pipes can be fastened, adapting the fastening system to the bottom to the most appropriate configuration for the environment.
    [0088]
    [0089] By designing each section of cables with a suitable length to the depth of the installation site, the anchoring system of the present invention allows the submerged or exit operations to be made to the surface, without crossing or twisting the cables. For example, when you want to rotate the device (typically with a reverse pendulum movement, to adapt to the change of direction of the tidal currents), even with transverse currents (existing in areas with octography of currents of elliptical type),
    [0090]
    [0091] In a situation of low speed of the current, the anchor cables that are connected to the module remain with a light tension and the rest of the cables in band, adopting the form of catenaries. In the operating situation of the device producing energy (when the speed of the current increases and, therefore, the horizontal forces are very strong), all the anchoring cables become tense and, as their attachment points are in the system very close, the device is aligned naturally with the direction of the current. Umbilical wires are still in band, limiting their traction efforts.
    [0092]
    [0093] In the case of adjustable monopod anchoring, after the ground structure of the main structure, all the anchoring cables are connected to the buoy and the main structure, passing the guide wire of each umbilical cable through its horizontal tube and through the hole from the end of the corresponding buoy. The buoy is transported on top of the module and when it is submerged, it separates, remaining floating in an intermediate depth.
    [0094]
    [0095] In another aspect of the invention, the module changing its shape and the relative colocation of the fastening eyelets of the anchoring cables and the passage tubes of the umbilical cables, can be adapted to different configurations of the park, for example by connecting a module to several devices or arranging several modules for a large device.
    [0096]
    [0097] This flexibility of configuration allows the system to be used not only for devices for the use of second generation currents, but also for devices for harnessing energy from the waves, such as those of the point absorber or linear attenuator and floating offshore wind turbines. SPAR platforms and semi-submersible, without forgetting the floating energy concentration platforms inside the park that typically have multipoint mounts (CALM) with catenaries, being able to increase the number of umbilical cables per module.
    [0098]
    [0099] Between the applications of this system they emphasize:
    [0100] - Floating platforms, both TLP and semi-submersible or SPAR.
    [0101] - Devices for the use of waves (WECs) of offshore type, especially those of the point absorber and linear attenuator type.
    [0102] - Devices for the exploitation of marine currents (TECs) of 2nd and 3rd generation (floating and pelagic).
    [0103]
    [0104] The system can be applicable to different anchoring configurations, being especially useful in the single point type (SALM) with an energetic connection, being able to adapt for the multipoint (CALM) using several main structure, especially for the integration of the power cables or signal to connect to the platform.
    [0105]
    [0106] The module object of the invention is designed so that: it can be built on land, installing most of the anchoring and connection systems, it can float during transport, descend to the bottom in the place of operation without the need of ships of support of big size and facilitate the installation of the final elements with operations that can be made from the surface, based on a system of "gula cables", with the specific support of underwater robots (ROVs).
    [0107]
    [0108] The anchoring system object of the present invention shows substantial differences with respect to the closest antecedent of the state of the art, since it uses cables instead of rigid arms and does not need the rotary connection system, reducing the costs of manufacturing, installation and maintenance based entirely on passive components.
    [0109]
    [0110] The main advantage of the present funding system with respect to the state of the art is that it integrates the anchoring and connection systems for anchored devices in a single platform, facilitating the transfer and maintenance operations, significantly reducing capital costs, operation and maintenance and increasing the security of these operations.
    [0111]
    [0112] Brief description of the drawings
    [0113]
    [0114] In the following, in order to facilitate the understanding of the invention, an embodiment of the invention that refers to a series will be described by way of illustration but not limitation. of figures.
    [0115]
    [0116] Figure 1 shows a top perspective view of a particular embodiment of the anchoring system object of the invention adapted for use in hard bottoms.
    [0117]
    [0118] Figure 2 represents a bottom perspective view of the system of Figure 1.
    [0119]
    [0120] Figure 3 represents a side view of the system of Figures 1 and 2.
    [0121]
    [0122] Figure 4 represents a cross-section of the system of figures 1 to 3, showing the passage tubes for electrical power and signal transmission cables.
    [0123]
    [0124] Figure 5 represents a top perspective view of an alternative embodiment of the anchoring system adapted for use in soft bottoms.
    [0125]
    [0126] Figure 6 represents a side view of a particular embodiment of the invention showing inflated bags for towing the system.
    [0127]
    [0128] Figure 7 represents a plan view of a buoy included in a particular embodiment of the system object of the present invention.
    [0129]
    [0130] Figure 8 represents a side view of an embodiment of the anchoring system arranged on the seabed with all the cables connected and carrying out the filling of the bags with concrete.
    [0131]
    [0132] Figure 9 represents a side view of an embodiment of the anchoring system including the buoy of Figure 7.
    [0133]
    [0134] Figure 10 represents a perspective view of a mooring system object of the present invention, connected to a multirotor device operating at high current speed, producing energy.
    [0135]
    [0136] Figure 11 shows a view of the anchoring system and the multirotor device of Figure 10, in this case operating with low current speed.
    [0137] Figure 12 shows a view of the anchoring system and the multirotor device of Figures 10 and 11, during a turning maneuver of the multirotor device, either to bring it to the surface or to change direction when the tide changes.
    [0138]
    [0139] In these figures reference is made to a set of elements that are:
    [0140] 1. main structure of the anchoring system
    [0141] 2. lid of the main structure
    [0142] 3. side of the main structure
    [0143] 4. longitudinal beam of the main structure
    [0144] 5. holes of the main structure
    [0145] 6. mouths for filling bags
    [0146] 7. passage tubes inside the main structure
    [0147] 8. fixing means for anchoring
    [0148] 9. fixing means for towing and descending
    [0149] 10. Gula tubes
    [0150] 11. inflatable and refillable bags
    [0151] 12. buoy
    [0152] 13. piece of crossover cables
    [0153] 14. hole for the passage of electric power and signal transmission cables 15. outer canopy
    [0154] 16. inner canopy
    [0155] 17. first cable of electric cables of transmission of energy and signal 18. second cable of electric cables of transmission of energy and signal 19. cables of tow and descent
    [0156] 20. anchor cables
    [0157] 21. stuffed gula cables
    [0158] 22. Concrete filled tube
    [0159]
    [0160] Detailed description of the invention
    [0161]
    [0162] An object of the present invention is an anchoring system, of the type used for the anchoring of devices for the exploitation of marine renewable energies.
    [0163] As shown in the figures, the anchoring system has a main structure 1 formed by an upper part and a lower part.
    [0164]
    [0165] The upper part has connecting means 8, 9 connectable to anchoring cables 20, to towing and lowering cables 19, and to glider cables 17, 18 for electrical power and signal transmission cables.
    [0166]
    [0167] The lower part has fixing means to the seabed.
    [0168]
    [0169] Inside the main structure 1 there is at least one passage tube 7 configured for the passage and fastening of electric power and signal transmission cables, also called umbilical cables.
    [0170]
    [0171] Preferably, there will be two or more separate passage tubes 7 for the passage and fastening of different electric power and signal transmission cables when these have to be separated, thus preventing the cables from contacting each other.
    [0172]
    [0173] Figures 1 to 4 show a particular embodiment of the invention, in which the lower part of the main structure 1 has gaps 5, and the fixing means to the seabed comprise pockets 11 arranged in the gaps 5. These bags 11 they are refillable of concrete to achieve the fixation of the main structure 1 to the seabed. These fixing means by means of refillable bags 11 of concrete are preferably used for hard marine floors.
    [0174]
    [0175] According to this embodiment, the main structure 1 is made of reinforced concrete, and serves as a base for the anchoring and which is composed of a cover 2, four sides 3 and two beams 4 in the shape of a cross, which form four holes 5 in the bottom, in the shape of a bell. Each of the bells has a cylindrical orifice or filler neck 6 in the cover 2.
    [0176]
    [0177] In contrast, for soft marine floors, an alternative embodiment of the invention has fastening means formed by guide tubes 10 for the introduction through its interior of piles and insertable slide pipes on the sea floor. Figure 5 shows this alternative embodiment of the invention.
    [0178] A particular embodiment of the invention has a buoy 12 configured to allow cables to cross. This buoy 12 is formed by an elongated central float, there being on each side of the central float a piece of cable crossing 13, which has means of attachment to anchoring cables 15, 16, and at least one through hole 14, for the passage of electrical cables for energy and signal transmission.
    [0179]
    [0180] A further object of the present invention is a method of installing an anchoring system.
    [0181]
    [0182] This method of installation of anchor system on the seabed has the following stages:
    [0183]
    [0184] First, build a main structure 1 on the ground, and install mooring cables 20 and towing and lowering 19, as! such as guide wires 17, 18 for electrical power and signal transmission cables in the upper part of the main structure 1.
    [0185]
    [0186] Next, tow the main structure 1 to the desired point by means of the towing and lowering cables 19, and lower said main structure 1 to the sea floor. Once the main structure 1 is lowered, it is fixed to the seabed.
    [0187]
    [0188] Finally, install the power and signal transmission electric cables in the at least one passage tube 7, preferably two or more, arranged inside the main structure 1 by means of the guide wires 17, 18.
    [0189]
    [0190] According to a particular embodiment of the method object of the invention, prior to towing the main structure 1, air bags are inflated with bags 11 arranged in recesses 5 in the lower part of the main structure 1, to facilitate the towing of said structure Main 1. Subsequently, once the main structure 1 has been towed to the desired point, the bags 11 will be deflated and these will be filled with concrete by filling mouths 6, to fix the main structure 1 to the seabed. This method is applicable mainly in hard marine soils.
    [0191] According to this realization, the main structure 1 is made of reinforced concrete, and serves as a base for the anchoring and which is composed of a cover 2, four lateral 3 and two beams 4 in the form of a cross, which form four holes 5 in the bottom, in the shape of a bell. Each of the bells has a cylindrical orifice or filler neck 6 in the cover 2.
    [0192]
    [0193] The main structure 1 is completed with two passage tubes 7 for the passage and fastening of the umbilical cables which, without intersecting as seen in figure 4, intersect inside the longitudinal beam and various cancams 8 and 9, for fastening the anchoring cables and installation maneuvers.
    [0194]
    [0195] As seen in figure 6, in each bell a wrapping bag 11 is placed and inside it another watertight one that, when inflated, provides an additional push for the transport of the module, floating and towed, to its position of location.
    [0196]
    [0197] When the colocation point is reached, it is sufficient to partially deflate the bags 11 and holding the drop cables 19 with the winches of two tugs, gently lowering the module 1 to the bottom. Then the bags are completely deflated and removed from the bells. Then a concrete filling tube 22 is lowered, with the help of the guide wire 21, with what remains in the situation of figure 8. After filling the concrete bags and setting this, the base is fixed to the bottom, proceeding to remove the lowering and guide cables 21, the base for the installation of the device and the umbilical cables being ready.
    [0198]
    [0199] To install the umbilical cables one is hooked on one end of the guide wire 17 and pulling the other end is made to pass through the tube 7, with what remains with one end on the surface, proceeding to install the rest of the cable on the bottom . For the other, it is done in reverse, the end of the cable that comes from the bottom is hooked to one end of the 18, with what passes through the other tube and remains on the surface. To hook the device, it is sufficient to take the ends of the anchoring cables 20 that have remained on the surface.
    [0200]
    [0201] Figures 7 and 9 show the differentiated elements for the case of an adjustable monopod anchoring using a special buoy 12 for crossing the cables. In this case, each anchoring cable 20 is divided into two sections: the lower one that goes from a central canopy of the module 8 to an inner canopy of the buoy 16 and the upper one that goes from the outer canopy of the buoy 15 to the boyarln of the surface, in order to be hooked to the device.
    [0202]
    [0203] In this case, the installation of each umbilical cable is similar. Figure 9 shows the previous situation, with the module completely concreted and fixed to the bottom. For example, the umbilical cable will be hooked to the right end of the cable 18 and, pulling the other end, it will be forced to pass through the tube 7 and through the through hole 14 of the buoy. Once in position, at each end of the tube and in the intern, the usual protection elements (stiffeners) are added.
    [0204]
    [0205] Alternatively, for soft marine soils, there is an alternative embodiment of the method, in which the main structure 1 is fixed to the seabed by the introduction of piles and sliding tubes through guide tubes 10 arranged in the main structure 1 and the insertion of these on the seabed. In Figure 5 the disposition of these guide tubes 10 can be seen in the case of a platform built in steel, with four guide-through tubes 10 for the placement of piles or suction anchors.
    [0206]
    [0207] Once the anchoring system is fixed to the bottom and the cables are removed (before or after mounting the umbilical cables), the device can be hooked and, when all the cables are connected, proceed to immerse it (by means of its ballasting system) being arranged for its operation and maneuvers submerged, as shown in figures 10 to 12.
    [0208]
    [0209] It can be seen that, thanks to the design of the system and its installation procedures, it can be carried out at different times: the transfer and immersion of the module (with only two low-cost port tugs), the filling of the module with concrete (with a specific vessel), the placement of the umbilical cables (with cable ships) and the connection of the device for harnessing the energy (with its own assembly system), which facilitates the planning of the installation of the park.
    [0210]
    [0211] Once the invention is clearly described, it is noted that the embodiments Individuals described above are susceptible to changes in detail provided they do not alter the fundamental principle and the essence of the invention.
    权利要求:
    Claims (11)
    [1]
    1. Anchoring system, characterized in that it comprises
    - a main structure (1) comprising an upper part and a lower part,
    - a plurality of attaching means connectable to anchoring cables (20), to towing and lowering cables (19), and to glider cables (17,18) of electrical power and signal transmission cables arranged in the upper part of the cable. main structure (1),
    - fixing means to the seabed arranged in the lower part of the main structure (1),
    - and at least one passage tube (7) disposed inside the main structure (1) configured for the passage and fastening of electric power and signal transmission cables.
    [2]
    2. Anchoring system, according to claim 1, characterized in that
    - the lower part of the main structure (1) comprises a plurality of recesses (5),
    - and in that the fixing means to the seabed comprise a plurality of bags (11) arranged in the recesses (5) of the lower part of the main structure (1), which are refillable with concrete.
    [3]
    Anchoring system, according to claim 1, characterized in that the means for fixing to the seabed comprise guide tubes (10) configured for the introduction of piles and insertable slide pipes on the seabed.
    [4]
    4. Anchoring system according to any of the preceding claims, characterized in that the main structure (1) is made of reinforced concrete.
    [5]
    5. Anchoring system according to any of claims 1-3, characterized in that the main structure (1) is made of steel.
    [6]
    6. Anchoring system according to any of the preceding claims, characterized in that it comprises a buoy (12) configured for the crossing of cables comprising
    - an elongated central float, and disposed on both sides of said central float
    - a piece of cable crossing (13) which in turn comprises
    - a plurality of means of attachment to anchoring cables,
    - and at least one through hole (14) for the passage of electrical power and signal transmission cables.
    [7]
    7. Anchoring system according to any of the preceding claims, characterized in that the connection means connectable to the cables (17,18,19,20) comprise main pockets (8) and auxiliary pockets (9).
    [8]
    8. Method of installation of anchor system on the seabed, characterized in that it comprises the stages
    - manufacture a main structure (1) on land,
    - install anchoring cables (20), towing and lowering cables (19) and glider cables (17,18) of electrical power and signal transmission cables in the upper part of the main structure (1),
    - tow the main structure (1) afloat to a desired point by means of the towing and lowering cables (19),
    - lower the main structure (1) by means of the towing and lowering cables (19) to the seabed,
    - fix the main structure (1) to the seabed,
    - placing electric power and signal transmission cables in at least one passage tube (7) disposed inside the main structure (1) by means of the guide wires (17,18).
    [9]
    9. Installation method of anchor system on the seabed, according to claim 8, characterized by previously towing the main structure (1), inflating with air a plurality of bags (11) arranged in holes (5) in the bottom of the main structure (1).
    [10]
    10. Method of installation of anchor system on the seabed, according to the previous claim, characterized by
    - deflating the bags (11) once the main structure (1) has been towed and - filling said bags (11) with concrete to fix said main structure (1) to the seabed.
    [11]
    11. Installation method of seafloor anchoring system, according to claim 8, characterized in that the main structure (1) is fixed to the seabed by the introduction of piles and sliding tubes through guide tubes (10) arranged in the main structure (1) and the insertion of these on the seabed.
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    同族专利:
    公开号 | 公开日
    WO2019002644A1|2019-01-03|
    ES2695308B2|2019-07-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3987638A|1974-10-09|1976-10-26|Exxon Production Research Company|Subsea structure and method for installing the structure and recovering the structure from the sea floor|
    JPS60233221A|1984-05-04|1985-11-19|Shimizu Constr Co Ltd|Method of installing off-shore structure|
    US20150167268A1|2008-10-24|2015-06-18|Subsea Deployment Systems Limited|Method and Apparatus for Subsea Installations|
    US20160245261A1|2013-10-08|2016-08-25|Linnhoff Offshore AG|Floating wind power plant|
    EP3034388A1|2014-12-17|2016-06-22|Hitachi, Ltd.|Wind power generation system|
    法律状态:
    2019-01-03| BA2A| Patent application published|Ref document number: 2695308 Country of ref document: ES Kind code of ref document: A1 Effective date: 20190103 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201730847A|ES2695308B2|2017-06-27|2017-06-27|Anchoring system and method of installing a seafloor anchoring system|ES201730847A| ES2695308B2|2017-06-27|2017-06-27|Anchoring system and method of installing a seafloor anchoring system|
    PCT/ES2018/070430| WO2019002644A1|2017-06-27|2018-06-18|Anchoring system and method for installing an anchoring system on the seafloor|
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