183 results about "Mooring line" patented technology

The invention relates to the technical field of floating type platform mooring systems, and discloses a self-adaptive mooring cable, a manufacturing method and a self-adaptive mooring method.The self-adaptive mooring cable sequentially comprises a center main bearing layer, a middle protection layer and an outer self-adaptive regulation and control layer from inside to outside. The central main supporting layer is composed of synthetic fiber cables with high tensile strength; the middle protective layer wraps the periphery of the main bearing layer, is formed by weaving fiber materials and is used for preventing external media from invading; the outer-layer self-adaptive regulation and control layer covers the periphery of the protective layer and is woven into a net-shaped structure by shape memory alloy wires; the shape memory alloy woven mesh is configured to be capable of dynamically adjusting the overall rigidity of the mooring cable through thermoelastic martensite phase transformation based on environment temperature changes, and creep deformation of the synthetic fiber cable is slowed down. Through the synergistic effect of the three-layer structure, the structural stability and performance consistency of the mooring cable in long-term use are guaranteed.

A method of transporting a first vessel having wind turbine components to an offshore installation vessel. The method includes (i) securing the first vessel to a second vessel using a first tow line attached to a front end (or bow) of the first vessel, and (ii) securing the first vessel to a third vessel using a second tow line attached to a back end (or stern) of the first vessel. The method further includes transporting the first vessel to the offshore installation vessel using the second vessel and the third vessel secured to the first vessel via the first and second tow lines, respectively. The method also includes securing the first vessel to the offshore installation vessel. The first vessel can include one or more fender walls. The first vessel can be secured to the offshore installation vessel using one or more mooring lines.

A floating photovoltaic system (1) comprising a flotation unit (100) and a mooring system (30), wherein the flotation unit (100) comprises at least one sail (2) having at least one vertical or near vertical photovoltaic panel (20) mounted on a mast (3) and supported on a base (5), wherein the base (5) further comprises at least one buoyancy element (10); and wherein the mooring system (30) comprises a single point mooring buoy (32) connected to at least one buoyancy element (10) or the base (5) via mooring lines (33), and at least one mooring line (34) from the single point mooring buoy (32) tethered to at least one anchor point (36).

The invention discloses a multi-energy complementary ocean floating type power generation system which comprises a floating type wind power platform, a wave energy power generation device, a floating type photovoltaic platform array and a mooring device, and the floating type wind power platform is used for supporting and installing a wind generating set; the wave energy power generation device is arranged on the periphery of the floating type wind power platform, so that a protection water area is formed between the wave energy power generation device and the floating type wind power platform; the floating type photovoltaic platform array is arranged in a protection water area; according to the mooring device, the anchoring foundation, the underwater buoys, the main mooring cable and the branch mooring cables are used for constructing a mooring cable net, the floating type wind power platform, the wave energy power generation device and the floating type photovoltaic platform array are moored in one mooring cable net in a centralized mode, and by sharing the anchoring foundation and the main mooring cable, the number of anchor points and the total using amount of mooring materials are greatly reduced; the mooring structure is simplified, the manufacturing and mounting cost is reduced, and meanwhile the energy output efficiency of the whole system is improved.

The utility model discloses a tension leg floating type wind power platform pile foundation connecting device, and relates to the technical field of tension leg floating type wind power platform mooring connection, the tension leg floating type wind power platform pile foundation connecting device comprises a bottom connecting mechanism and a steel cable protection mechanism, the bottom connecting mechanism comprises a welding back plate, and a tongue plate is arranged on the welding back plate; the upper end of the tongue plate is connected with a steel cable joint through a pin shaft, a steel cable is connected to the steel cable joint, and the two ends of the tongue plate are locked and fixed through locking mechanisms respectively. The steel cable protection mechanism is located on one side of the pile foundation, and the steel cable is placed on the steel cable protection mechanism after being connected and used for preventing the steel cable from being bent and damaged when the steel cable is pre-laid to the seabed. The device is simple in structure, reliable in performance, convenient to operate and capable of adapting to underwater rapid connection, only one ROV is needed for auxiliary operation in the whole operation process, the tie-back installation process of the mooring rope and the anchoring device of the tension leg wind power platform is simplified, and the mooring and installation cost of the tension leg wind power platform is reduced.

The application discloses a sea floating type wind turbine generator foundation mooring system, which comprises an anchoring foundation, a mooring system, a floating body foundation and an upper wind turbine; the mooring system comprises a bottom section mooring chain, an intermediate mooring cable and an upper section mooring chain; the length of the intermediate mooring cable is greater than the straight line connecting distance between the bottom section mooring chain and the upper section mooring chain, and the tension adjustment of the intermediate mooring cable is realized through the buoyancy effect, so as to realize the effective connection between the anchoring foundation and the floating body foundation; the anchoring foundation is connected with the bottom section mooring chain of the mooring system; the bottom section mooring chain is connected with the intermediate mooring cable; the intermediate mooring cable is connected with the upper section mooring chain; the upper section mooring chain is connected with the floating body foundation; the upper wind turbine is installed on the upper foundation; the whole mooring system does not use high-cost equipment such as tensioners, and the relatively expensive tensioner product cost and the cost of large ship machine equipment used for using the tensioner are saved through the buoyancy.

The utility model discloses a hook with openable connecting points, which relates to the technical field of hooks and comprises a hook body and a baffle, the hook body comprises a hook portion and a connecting rod which are integrally formed, and a fixing ring with a notch at the top is integrally formed at the end of the connecting rod. The fixing ring is detachably provided with a baffle ring with a notch in the bottom through a screw, a first hinge lever is riveted to the corner, close to the fixing ring, of the baffle, the first hinge lever penetrates through the connecting rod, the first hinge lever and the connecting rod are rotationally connected, and torsional springs arranged on the outer ring of the first hinge lever in a sleeving mode are arranged on the two sides of the connecting rod correspondingly. The hook solves the problems that a bottom connecting point of an existing hook needs to be connected with a tying rope and other components, the tying rope often needs to be sewn and installed in the connecting point, the connecting point of the hook and an external component is not convenient to open, and the hook and the tying rope and other components are not convenient to connect and replace; and the large hook tying rope cannot be replaced after being damaged and needs to be integrally scrapped.

The present invention relates to an arrangement for retrieving broken moorings comprising: at least three shackles; at least two slings; at least one mooring; at least one hook; at least one ROV needle rope; and a treble hook. The upper end of the mooring is connected to a working rope with a swivel link, and the lower end of the mooring is connected to the treble hook. In addition, the invention also describes a method for retrieving broken moorings, using said arrangement for retrieving moorings, comprising the following steps: positioning a treble hook close to a mooring to be retrieved; passing a sling around the mooring; connecting a sling to the hook; applying traction; and accommodating the mooring. In this way, the invention combines the flexibility and adaptability necessary to operate in different suspension conditions on the seabed, ensuring the efficient retrieval of the broken moorings, both in environments with high-suspension seabeds and in low-suspension seabeds.

A floating power-generation group comprises a floating hub such as a spar buoy that is anchored to subsea foundations by anchor lines. Floating power producer units such as wind turbines are connected electrically and mechanically to the hub. The power producer units are each moored by mooring lines. At least one mooring line extends inwardly toward the hub to effect mechanical connection to the hub and at least one other mooring line extends outwardly toward a subsea foundation. The groups are combined as a set whose hubs are connected electrically to each other via subsea energy storage units. Anchor lines of different groups can share subsea foundations. The storage units comprise pumping machinery to expel water from an elongate storage volume and generating machinery to generate electricity from a flow of water entering the storage volume. The pumping machinery can be in deeper water than the generating machinery.

The invention discloses an anchor system laying device and method, a holding power anchor and a gravity anchor can enter water in sequence through a crane and a crane, the anchor system laying device comprises a winch, a ground command, the crane and the crane, the winch is arranged on a deck of a workboat, the winch is provided with a mooring rope, and the mooring rope can be wound on the winch; the ground wire is arranged on a deck of the workboat; the crane is arranged on a deck of the workboat and provided with a first pulley, and the mooring rope bypasses the first pulley to be connected with the gravity anchor. The crane is provided with a second pulley, a traction rope is wound on the second pulley, the traction rope penetrates through a lifting ring of the holding anchor and is connected to the ground wire, and the second pulley can pull the holding anchor through the traction rope; the crane is arranged on a deck of the workboat, provided with a lifting hook and capable of being connected with the gravity anchor through the lifting hook so as to adjust the position of the gravity anchor.

Method for transferring fluid between a first offshore assembly located in a body of water and an assembly floating on the body of water, assembly and associated installation. The method comprises the following steps: installation and mechanical tensioning of a plurality of mooring lines (70) between the offshore assembly (12) and the floating assembly (16), each mooring line (70) having an active length (76) under mechanical tension between a first point and a second point; fluid connection between a first capacity (22) and a second capacity (44) via a fluid transfer system (64), and fluid transfer between the first capacity (22) and the second capacity (44); continuous measurement of the mechanical tension applied over the active length (76) of at least one mooring line (70);control, by a control system (62) of the active length (76) of at least one mooring line (70), to maintain the mechanical tension applied to at least one mooring line (70) within a predefined mechanical tension range. Figure for the abbreviation: figure 1;

In a general aspect, suction anchors are presented for securing structures to an underwater floor. The suction anchors include a tubular body formed at least in part of cementitious materials and having a closed end and an open end. The tubular body includes an edge defining an opening for the open end. The edge is configured to penetrate the underwater floor. The suction anchors also include a port configured to fluidly-couple a cavity within the tubular body to an exterior of the tubular body. The suction anchors additionally include a pad eye extending from an outer surface of the tubular body and configured to couple to a mooring line. In another aspect, methods of manufacturing the suction anchors are also presented.

The invention discloses a ship mooring rope jumping-preventing self-centering guide wheel device, and relates to the technical field of ship mooring ropes, the ship mooring rope jumping-preventing self-centering guide wheel device comprises a base and a side plate, the outer side of a main shaft is fixedly connected with a guide wheel, one side of the guide wheel is provided with an auxiliary displacement mechanism, the outer side of a guide rail is slidably connected with a sliding block, and the outer side of the sliding block is provided with an auxiliary displacement mechanism. One end of the sliding block is fixedly connected with a transverse plate, one end of the transverse plate is fixedly connected with an anti-jumping groove mechanism, the anti-jumping groove mechanism is arranged, when the cable on the outer side of the guide wheel is pressed, under the action of the anti-jumping groove mechanism, the cable cannot be connected together in a pressed mode, the pressed cable is flatly laid on the outer side of the guide wheel, and therefore the cable is prevented from being damaged. Therefore, the phenomenon that the cable is separated from the guide wheel due to the fact that cable pressing is not treated in time is prevented, workers do not need to be on duty beside the guide wheel and lift and push the cable all the time, the labor intensity of the workers is reduced, and meanwhile the overall operation efficiency and the safety of the workers are improved.

The application discloses a load reducing device for a floating wind turbine mooring line and a mounting method thereof. The device comprises a float, a counterweight and a wing plate. The float and the counterweight are used to reduce the tension component of the mooring line and play a damping load reducing role. The wing plate is used to rotate the float and the counterweight block, convert the tension of the mooring line into a non-collinear load, and thus slow down the impact of instantaneous load. The mounting of the load reducing device comprises two parts of assembly of the device itself and hoisting connection of the device and the floating wind turbine. The load reducing device has the advantages of simple structure, high construction and mounting efficiency, solves the design problems of excessive load of the floating wind turbine mooring line and high cost, is widely applicable, efficient and reliable, and is favorable for development of large-scale and commercial offshore floating wind turbines.

The deployment device comprises a main body portion including a platform engagement portion, the platform engagement portion being configured to engage securely with a corresponding portion of an offshore renewable energy system platform, and a mooring tension member coupled to the main body portion, wherein the platform engagement portion is further configured to disengage from a corresponding portion of the platform, and further, when the platform engagement portion is engaged with a corresponding portion of the platform, the mooring tension member is configured to apply tension to at least one mooring line of the offshore renewable energy system platform along a plane substantially perpendicular to the base portion of the platform, and under the tension, the main body portion is configured to move with respect to at least one mooring line from a first non-deployed position to a second deployed position.

This invention discloses an autonomous vessel and a method for maintaining a precise position or trajectory during offshore operations (e.g., cable or pipe laying or offshore construction installation). The vessel includes multiple externally anchored mooring lines, a winch system with tension sensors, a position sensor, and a control system. The control system processes position and tension data to detect deviations caused by environmental forces such as wind, waves, or ocean currents. In response, the control system activates the winch system to adjust the length of the mooring lines, counteracting forces caused by different environmental factors and achieving controlled maneuvering within the mooring area. An optional artificial intelligence module can learn from historical data to predict dynamics and optimize adjustments along predetermined waypoints. Compared to traditional dynamic positioning systems, this reduces fuel consumption, improves accuracy, and minimizes risk. It is applicable to vessels such as barges or installation platforms.

The application relates to the technical field of offshore wind power mooring construction, and proposes a floating offshore wind power semi-tension composite cable and a construction method. The floating offshore wind power semi-tension composite cable comprises a mooring cable body, a tension adjusting assembly and a controller. The mooring cable body comprises a polyester cable, an upper anchor chain and a lower anchor chain. The upper anchor chain and the lower anchor chain are respectively connected to the two ends of the polyester cable. The tension adjusting assembly comprises a tension sensor and a tension hydraulic cylinder. The tension sensor is implanted in the polyester cable. The tension hydraulic cylinder is installed at the upper anchor chain. The tension sensor is used for monitoring the tension of the mooring cable in real time and feeding back to the controller. The controller is used for driving the piston rod of the tension hydraulic cylinder to extend or retract according to the feedback tension data, so as to adjust the tension of the mooring cable. The application has the effects of relieving the tension mutation of the mooring cable under complex marine environment, reducing the cross winding and load concentration of the cable body.

This invention relates to the field of marine engineering mooring systems, specifically to an armored, segmented, abrasion-resistant protective sleeve for the bottom section of a mooring cable. The sleeve includes a front armor unit and multiple main armor units. The front armor unit is fitted over the anchoring end of the mooring cable and has an anchoring through-hole corresponding to the anchoring end. Multiple main armor units, hinged end-to-end, are fitted over the mooring cable, with one end hinged to the front armor unit and the other end extending to the bottom section area where the mooring cable touches the bottom. The front armor unit and main armor units, fitted over the bottom section area from the anchoring end to the bottom contact point, provide anchor chain-level abrasion and cut resistance, completely replacing the protective function of traditional anchor chain bottom sections. The hinged design allows the protective sleeve to bend freely with the mooring cable, ensuring the necessary rigid protection for the bottom section while maintaining the overall flexibility of the mooring cable, fully adapting to seabed topographic changes and dynamic loads.

Offshore floating structure may include one or more mooring lines coupled to an elongated base for anchoring the elongated base to a sea floor. Offshore floating structure may further include a mounting platform coupled to the elongated base and configured to removably couple one or more power support components for supporting one or more offshore operations. The one or more power support components may comprise one or more renewable energy power sources, one or more alternative power sources, one or more power storage systems configured to store and provide energy generated from the one or more renewable energy power sources or the one or more alternative power sources, and one or more electric charging stations configured to receive the energy generated from the one or more renewable energy power sources or the one or more alternative power sources. Offshore floating structure may be manually, remotely, and / or autonomously operated.

The present invention is applied in the field of anchor line maintenance and, more particularly, relates to a method for subsea connection of anchor lines under tension, comprising: installing, by means of an ROV (31) of a support AHTS vessel (3), one or more floats (43) on an anchor hook shackle (42) of a fixed-point mooring line (41); providing, by means of a main AHTS vessel (2), a handling line (20) comprising a handling cable (21) attached to the main AHTS vessel (2) and a ballast mooring line (22) connected to the handling cable (21); connecting, by means of the ROV (31), the ballast mooring line (22) to a link of a seabed mooring line (12) of a stationary production unit (UEP) (1) in the vicinity of the anchor hook (13); paying out, by means of the main AHTS vessel (2), the handling line (20) with the ballast mooring line (22) connected to the link of the seabed mooring line (12) in the vicinity of the anchor hook (13); moving the main AHTS vessel (2) toward a fixed anchor point (4), passing over it, until a desired position is reached; connecting, by means of the ROV (31), the anchor hook (13) to the anchor hook shackle (42); and disconnecting, by means of the ROV (31), the ballast mooring line (22) from the link of the seabed mooring line (12). The present invention also relates to other methods for subsea connection of anchor lines under tension.

The application discloses a kind of modular wave energy device combined with floating wind turbine and control method thereof.The wind turbine group of device is installed at the top of tower drum, tower drum is installed on floating platform, wave energy device is hinged on floating platform by flexible cable, floating platform floats on sea surface, and is connected to seabed by mooring cable.The method comprises: wave energy device switches working mode by determining wave height condition, if wave height is lower than maximum wave height, wave energy float rises to water surface and normally operates to generate electricity, if wave height is higher than maximum wave height, wave energy float sinks to underwater and stops generating electricity.The application combines modular wave energy device to floating wind turbine, can dissipate environmental load of wind turbine by the operation of wave energy device, while the sinking mode of wave energy device can improve the survivability of wind turbine in extreme environment, effectively improve the motion response and structural load of floating wind turbine, improve the reliability and economy of wind turbine.

The invention discloses a polypropylene mooring rope and a manufacturing method thereof, and mainly relates to the technical field of manufacturing of mooring ropes for ships. Comprising a polypropylene cable rope body obtained by weaving prefabricated plied yarns according to a 12-strand large-pitch structure, the prefabricated plied yarns are formed by winding and weaving polypropylene fiber industrial filaments, and the polypropylene cable rope body is coated with a coating; wherein the large pitch refers to that the pitch / diameter ratio is more than 8 times; the polypropylene fiber industrial filament is prepared from the following raw materials in parts by weight: 95 to 105 parts of polypropylene slices, 4 to 6 parts of solid organic silicon, 4 to 6 parts of anti-UV particles, 1 to 3 parts of color master batch and 0.1 to 0.5 part of antioxidant, by changing the problems of wear resistance and weather resistance of a traditional polypropylene fiber cable, the polypropylene fiber cable is expected to replace a cable made of a traditional material after being improved, the mooring cable is suitable for application scenes of mooring cables for ships, and the problems that the self weight of the mooring cable for the ships is too large, the working efficiency is affected, and the working labor intensity is increased are solved.

The application provides a mooring cable damage evaluation method based on internal friction driving damage expansion, which comprises the following steps: 1) obtaining the basic mechanical properties and geometric parameters of the polyester cable; 2) performing conversion on the polyester cable sub-cable, strand and yarn performance, and calculating the breaking strength, elongation and stiffness curve of the components; 3) discretizing the yarn in the strand into several layers of axis coincident cylindrical shells, and calculating the extrusion force and fiber tension in the adjacent fibers and adjacent cylindrical shells in the cylindrical shells; 4) calculating the tension of each layer of yarn to determine the friction form of the yarn and the friction force between different layers of yarn; 5) calculating the area damage of each layer of cylindrical shell after a single cycle or several cycles of combined calculation according to the friction force between different layers of yarn; 6) calculating the influence of micro-damage on the performance of the yarn and cyclically executing steps 4) to 6) until damage. The application can reveal the damage expansion law and realize the method of component-level real-time evaluation, and provides support for the safety of deep-sea mooring systems.

A composite bollard about which a mooring line can locate. The bollard has at least one bitt projecting upwardly from a base and is defined by a shell construction of a monocoque fibre composite laminate. The bitt is secured by fasteners to a marine vessel in a cantilevered beam manner at the base so that a bending moment applied to the bitt 5 by the mooring line creates resulting tension and compression forces vectored parallel the upwardly direction of the bitt in the shell. At least the tension forces are able to be transferred via the fasteners to the marine vessel.

A modular, gravity-driven hydrokinetic energy system for submerged deployment. The system comprises a conical intake funnel, vertically aligned conduit, an inline axial-flow turbine-generator module, and a siphon-based discharge subsystem regulated by a venturi module and one-way valve. Operating independently of ambient currents, it relies on gravitational potential and hydrostatic pressure. Structural modularity allows for scaling and transport. Anchored by tensioned mooring cables and optional buoyancy modules, the system enables seabed-independent deployment. A venturi-enhanced discharge minimizes head loss, enabling continuous flow. Intake screens and vortex suppressors mitigate marine life entrainment. The design supports robust power generation in various oceanic locations and can be disassembled without fixed foundations, ensuring environmental compatibility and mechanical robustness.

The invention discloses a ship active mooring control method and system based on variable stiffness gain scheduling, and belongs to the technical field of ocean engineering and ship localization, and the method comprises the steps: collecting and obtaining ship six-degree-of-freedom motion data and mooring rope tension data in real time, and obtaining a system state set; filtering high-frequency wave interference and extracting a low-frequency drift motion component by using a signal preprocessing algorithm, and generating a control deviation signal relative to a preset target position; according to a comparison result of the control deviation signal and a preset dead zone threshold value, generating a real-time rigidity gain parameter through a gain scheduling strategy; according to the real-time rigidity gain parameter and the control deviation signal, a total control force demand is calculated in combination with a virtual damping mechanism; and according to the total control force requirement and the spatial geometric distribution of each mooring rope, target tension increment of the mooring rope is generated to drive the mooring winch to adjust the original length of the mooring rope, and active mooring control is achieved. Fatigue damage of the mooring system is effectively reduced, and low-frequency resonance is restrained.

A mooring line (200) comprising a first section (210) for being in an inverse catenary shape under the seabed (20) when installed is disclosed. The mooring line (200) comprises one or more plates (300) connected to the first section (210) of the mooring line (200), the one or more plates (300) comprise a surface area (310) configured for providing a resisting force in a direction perpendicular to the mooring line (200) for keeping the first section (210) in the inverse catenary shape when axial pulling force is applied to the mooring line. A mooring system for an offshore structure (10) is disclosed. The system comprises an anchor member (100) at least partly embedded in the seabed (20) and the mooring line (200). The mooring line (200) further comprises a second section (220) for being subsea, the mooring line (200) extending from the offshore structure (10) to a part of the anchor member (100) embedded in the seabed (20), wherein the one or more plates (300) are connected under the seabed to the first section (210) of the mooring line (200) and are configured to keep the mooring line (200) in an inverse catenary shape.

The invention discloses a multi-pipe-cable supporting system suitable for deep-sea mining, and relates to the technical field of marine resource development equipment, the multi-pipe-cable supporting system comprises a mooring assembly and a reclaimed water buoy arranged on the mooring assembly, a mining vertical pipe is arranged at the top of the reclaimed water buoy, and the mooring assembly comprises a mooring cable and a gravity anchor arranged at the bottom of the mooring cable; the reclaimed water buoy comprises symmetrically arranged orthogonal grid reinforcing frameworks, a pipe cable bearing plate is arranged at the tops of the orthogonal grid reinforcing frameworks, capsule type buoy units are symmetrically arranged in a space formed by the orthogonal grid reinforcing frameworks and the pipe cable bearing plate, the mooring rope is connected with the orthogonal grid reinforcing frameworks, and the mining vertical pipe is erected on the pipe cable bearing plate; by integrating the reclaimed water buoy, the symmetrical mooring assembly and the modularized double-arm connecting rod structure, the dynamic response of the vertical pipe is effectively restrained in deep-sea mining operation, space interference between the vertical pipe and the cable can be prevented, and the system stability, the operation safety and the mineral conveying efficiency are remarkably improved.

The invention relates to the technical field of offshore wind driven generators, and discloses a floating type fan and a floating type fan mooring cable tension optimization method.The floating type fan comprises a floating platform, a tower barrel, a wind turbine generator set, mooring cables and a rotary wind barrel, the tower barrel is vertically arranged on the floating platform, the wind turbine generator set is arranged at the top of the tower barrel, and the three mooring cables are distributed in a triangular shape; one end of each mooring rope is connected with the floating platform, a sensor is arranged on each mooring rope, the rotary air duct is rotationally arranged outside the tower drum, and the rotary air duct is in signal connection with the sensor. When one mooring rope bears the limit load, and the loads of the other two mooring ropes are small, the rotary air duct is started, and the draught fan bears the windward resistance component; when the mooring rope is stressed, a lateral thrust component is also exerted, so that the displacement of the fan in the wind wave direction is converted into side offset, the stress of the mooring rope is readjusted, the situation that only one mooring rope bears extreme load originally is automatically relieved, and the performance potential of the mooring rope can be fully exerted.