320 results about "Mooring line" patented technology

The invention discloses a dual-mode dynamic cooperative control method and system based on pulling of a mooring line. The method comprises the steps that displacement electric signals are collected through double potentiometers; a Z-axis PWM signal is generated based on the displacement electric signal through a PWM signal generator; an XY-axis PWM signal is generated through the included angle difference between an XY rocker on the unmanned aerial vehicle and the mooring line; the Z-axis PWM signal is divided into two paths, one path is transmitted to a capstan electronic speed controller, and the other path is transmitted to the unmanned aerial vehicle and is combined with the X-axis PWM signal and the Y-axis PWM signal to form a three-dimensional control signal; setting a remote control signal and a winch potentiometer signal as well as a three-dimensional control signal and a winch manual signal as a first linkage group and a second linkage group respectively; when the first linkage group is switched on and the second linkage group is switched off, the unmanned aerial vehicle enters a first control mode; and when the second linkage group is switched on and the first linkage group is switched off, the unmanned aerial vehicle enters a second control mode. The method is used for solving the technical problems of single control mode, insufficient man-machine collaboration, poor environmental interference adaptability and limited control precision existing in traditional mooring unmanned aerial vehicle control.

The invention provides a floating type annular wave-resistant offshore photovoltaic structure. The floating type annular wave-resistant offshore photovoltaic structure comprises arc-shaped wave-resistant structure units, spring connectors, photovoltaic buoyancy tanks, photovoltaic modules, buoyancy tank mooring cables, mooring cables and pile anchors. The plurality of arc-shaped anti-wave structure units are flexibly and annularly connected through the spring connectors to form a floating type annular anti-wave structure; photovoltaic buoyancy tanks are fully paved in the circular ring of the floating type annular wave-resistant structure in parallel, and a photovoltaic module is fixedly mounted on the surface of each photovoltaic buoyancy tank. The structure main body of the novel floating type annular wave-resistant offshore photovoltaic structure adopts arc-shaped wave-resistant structures made of a high-density polyethylene material, the arc-shaped wave-resistant structures are connected into an integral circular ring through spring connectors, photovoltaic modules in the ring are protected and moored, a plurality of macromolecule buoyancy tank mooring cables are adopted in the ring to be connected with photovoltaic buoyancy tanks, and the photovoltaic buoyancy tanks are connected into a whole. The whole structure has certain flexibility and has the advantages of being small in steel consumption, high in weather resistance, low in building cost, high in wind wave resistance, easy and convenient to construct, good in power generation economical efficiency and the like.

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.

A jacket foundation sharing anchoring system for offshore wind and light same-field power generation comprises a plurality of jacket foundations used for supporting a wind driven generator, and the jacket foundations are distributed in an array mode. The jacket foundations are divided into a plurality of groups, the number of each group of jacket foundations is at least three, and the jacket foundations in the same group can define a photovoltaic mounting area for accommodating a floating photovoltaic platform; the guide pipe frame foundation comprises a suction barrel inserted into the seabed, the suction barrel is fixedly and detachably connected with a plurality of mooring cables used for being connected with the floating type photovoltaic platform, and the mooring cables extend into the photovoltaic installation area. According to the jacket foundation sharing anchoring system and anchoring method for offshore wind and light same-field power generation, the floating type photovoltaic platform and the wind driven generator can share the jacket foundation, sharing anchoring is achieved, and the stability of the wind driven generator and the stability of the floating type photovoltaic platform are both improved.

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.

Offshore energy production facility The present disclosure relates to an offshore energy production facility (100) comprising a floating platform (110), an energy production system mounted on the platform and preferably comprising at least one wind turbine (120), a mooring line (130, 140) connected to the platform, and a system for generating and / or storing energy (G2, G1), for example electrical energy, from a mechanical tension experienced by the mooring line. This constitutes an improved offshore energy production facility. [Fig 1]

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).

A method of preparing a mooring rope for use in a mooring system for a floating offshore structure. The method comprises laying the mooring rope between a buoy and a seabed anchor; and tensioning the mooring rope between a buoyancy force from the buoy and the seabed anchor, thereby elongating the mooring rope towards a worked length condition. In another aspect, there is provided a method of preparing a mooring system for a floating offshore structure. The mooring system has at least one mooring line between a buoy and a seabed anchor, and the mooring line comprises a mooring rope. The method comprises tensioning the at least one mooring line between a buoyancy force from the buoy and the seabed anchor, thereby elongating the mooring rope towards a worked length condition. Preferred embodiments include tensioning the at least one mooring rope or mooring line between a buoyancy force from the buoy and a tensioning device acting against the buoyancy force. The tensioning device may be a part of the mooring system.

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 invention discloses an integrated floating platform system for multi-source ocean energy cooperative power generation and photovoltaic hydrogen production. The integrated floating platform system comprises a mooring power generation system, a photovoltaic hydrogen production platform and a vortex-induced vibration piezoelectric power generation system. The mooring power generation system comprises a mooring cable with an elastic cable, and the elastic cable is connected with a piezoelectric power generation device in series. The mooring rope is connected with the wave energy power generation anchor; the piezoelectric power generation device comprises an elastic unit connected in series on the elastic cable; the wave energy power generation anchor comprises a shell, the shell comprises a main cavity, and the main cavity communicates with branch cavities; an elastic film covers the opening of the sub-chamber; the main chamber and the branch chambers are divided into a first air passage and a second air passage; an air turbine is arranged in the first air channel; the first air channel is connected with a communicating pipe; a check valve is arranged between the communicating pipe and the first air channel; the vortex-induced vibration piezoelectric power generation system comprises an air cylinder with a piston rod, the piston rod is connected with an oscillation floater, an air turbine is arranged in the air cylinder, a second piezoelectric plate is arranged outside the air cylinder, and a spoiler is arranged at the end of the second piezoelectric plate. According to the invention, integration of offshore power generation and hydrogen production is realized, and the energy utilization rate is improved.

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 invention discloses a multi-point mooring cylindrical FPSO dynamic response and mooring cable configuration digital twinning method. The multi-point mooring cylindrical FPSO dynamic response and mooring cable configuration digital twinning method comprises the following steps that S1, one sea condition combination is taken for analysis; s2, numerical simulation calculation; s3, fitting the configuration of each root mooring line by using a third-order Fourier series; s4, establishing a motion response and database of the multi-point mooring floating type ocean platform; s5, completing the training of a short-term forecasting model and an inversion model; s6, calculating sea conditions which do not appear in the training set through numerical simulation; s7, verifying the accuracy of the model; s8, completing model training and verification corresponding to all combined sea conditions; s9, enabling the model to be matched with the actual situation; and S10, applying the model to an actual platform. According to the multi-point mooring cylindrical FPSO dynamic response and mooring cable configuration digital twinning method, in the using process, data can be continuously updated according to the actual situation, and the accuracy of the model is improved.

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.

An offshore wind farm includes at least four floating structures designed to receive a wind turbine, with each floating structure having at least three mooring lines, and each mooring line is attached to a mooring point arranged around said floating structure. The mooring lines facing inward from the offshore wind farm form the inner mooring lines of the offshore wind farm and the mooring lines facing outward from the offshore wind farm form the peripheral mooring lines of the offshore wind farm, wherein two adjacent floating structures have at least one of their peripheral mooring lines crossing each other, with at least one of these peripheral mooring lines comprising a buoyancy element.

A disconnectable mooring system for offshore semi-submersible floating structures. A disconnectable buoy has a number of mooring lines which include a buoy chain between the mooring chain and the buoy. The mooring chain and the buoy chain are connected via a three way mooring connector, with the third connection configured to pull the mooring connector to a mooring point on the structure. In a first configuration the buoy is disconnected and supports the mooring chains for recovery at shallow depths to be pulled in. In a second configuration, the mooring lines are pulled in via the mooring connectors thereby providing a spread mooring to the structure with the buoy chain left as a catenary between the buoy and mooring point.

The present invention belongs to the field of offshore power generation technology and specifically discloses a universal joint connection device for connecting an offshore wind turbine platform to the seabed. By installing a cross universal joint connection structure at the bottom of the tension-type floating wind power platform body and using the cross universal joint connection structure as the swing center, when encountering strong winds or waves, the platform can swing in response to the wind and waves and float under the action of buoyancy. At the same time, by connecting the floating platform to the seabed, the force acting on the platform body can be transmitted to the seabed through the universal joint, avoiding the phenomenon of twisting when using mooring cables, improving the stability of the connection between the platform body and the seabed, providing effective support for the wind power generation equipment, and allowing the wind turbine to maintain stable operation against the wind.

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 a floating structure mooring dynamic response prediction method and system, and relates to the technical field of ocean engineering. According to the method, the uncoupled mooring physical model is introduced to serve as a core calculation unit, the uncoupled mooring physical model is driven by utilizing easily obtained floating body motion data, and multiple dynamic response data sets covering a whole mooring line catenary segment and multiple nodes are rapidly generated; therefore, a mode of obtaining training data by depending on an expensive sensor or time-consuming full-coupling simulation in a traditional method is replaced, and the cost and difficulty of data obtaining are reduced fundamentally; and meanwhile, a time sequence prediction model is trained by utilizing a dynamic response data set, so that the time sequence prediction model learns an intrinsic time sequence evolution rule of mooring dynamic response, the interpretability and reliability of a physical model are reserved, and the powerful capability of an AI model in mining a complex nonlinear time sequence relationship is also exerted. In conclusion, high-precision and high-reliability mooring dynamic response prediction can be obtained with low cost and high efficiency.

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 invention discloses a quick tie-back method for a three-stand-column floating type wind power mooring system. The quick tie-back method comprises the following processes of laying mooring cables in water, entering a foundation platform, tie-back of a first stand column mooring cable, tie-back of a second stand column mooring cable and a third stand column mooring cable and tensioning of the mooring cables. A floating body device is adopted, and a set of underwater mooring cables and connection between the set of underwater mooring cables and a set of upper anchor chains can be fixed at a time. By adopting the anchor chain lifting appliance, the lifting and tensioning of the upper section of anchor chain can be completed at one time. A crane ship is used for anchoring and positioning, and a DP crane ship is used for hoisting and tensioning an upper anchor chain. The three DP three-purpose ships are adopted for fishing and dragging the mooring line in water and completing connection with an upper anchor chain, tie-back of the mooring line can be rapidly and flexibly completed through cooperative operation of the crane ship, the DP crane ship and the DP three-purpose working ship, sufficient preparation time is reserved for later fan installation, and the mooring line can be rapidly and flexibly connected. And an efficient, safe and reliable construction scheme is provided for offshore wind power.

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.

The present invention provides a floating wind turbine foundation, belonging to the field of offshore wind power technology, comprising a wind turbine, a column, a buoy, a truss assembly, and a mooring system. The wind turbine is fixedly connected to the top of the column. The buoys are multiple and evenly distributed around the column. The buoys are equipped with active ballast tanks for adjusting the ballast water volume of the buoys. The truss assembly is located below the sea surface and connects the buoys and the columns. The mooring system adopts catenary mooring and includes multiple mooring cables. The bottom end of each mooring cable is provided with an anchor foundation, and the anchor foundation is fixedly connected to the seabed. The floating wind turbine foundation of the present application can reduce costs, improve the movement performance of the wind turbine, and is suitable for deep sea areas.

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.