69results about "Cable installations on floats" patented technology

A jacket assembly 100 is provided for attachment to a subsea flexible line for facilitating passive control of movement of the flexible line. The jacket assembly comprises a plurality of jackets (FIG

An elongate connector for subsea connection of cables and the like to wind turbine generators has a plurality of locking elements arranged on ramp surfaces and held in a plurality of cages on the connector. The cages are moveable to move the locking elements along the ramp surfaces between an engaged position and a disengaged position and the plurality of cages are moveable independently of each other. A release collar is provided, which can move all the cages simultaneously to the disengaged position, in order to allow removal of the connector.

The invention provides a dynamic submarine cable protection device and a construction technology thereof, the protection device comprises a plurality of cable stabilizing structures, the plurality of cable stabilizing structures are respectively connected to a plurality of trough sections of a dynamic submarine cable, and each cable stabilizing structure comprises an anchoring seat which is used for being installed on a seabed and is located below the trough sections; one end of the first connecting rope is connected to the anchoring seat, and the other end of the first connecting rope is provided with a connecting ring; a floating structure; one end of the second connecting rope is connected to the wave trough section, the other end of the second connecting rope penetrates through the connecting ring and is connected to the floating increasing structure, the two ends of the second connecting rope are both higher than the connecting ring, and the second connecting rope is driven by the floating increasing structure to pull the first connecting rope. According to the dynamic submarine cable protection device and the construction technology thereof provided by the invention, the floating increasing structure can increase the floating tension on the dynamic submarine cable moving downwards to avoid the situation that the dynamic submarine cable touches the bottom, and can increase the floating resistance on the dynamic submarine cable moving upwards to reduce the moving amplitude of the dynamic submarine cable, so that the protection effect on the dynamic submarine cable is improved.

The invention discloses a rotary submarine cable protection device and a submarine cable protection method.The multiple protection devices are arranged in the length direction of a submarine cable in a sleeving mode, each protection device comprises an outer sheath, a rolling shaft and an inner sheath, the inner sheath is arranged in the outer sheath, and the inner sheath is rotationally connected with the outer sheath through the rolling shaft; a spiral strake is arranged on the periphery of the outer sheath, the spiral strake is spirally arranged along the periphery of the outer sheath, and flow guide holes are formed in the spiral strake. When water flow impacts the spiral strake, the outer sheath and the spiral strake can be driven to rotate relative to the fixed inner sheath through the rolling shaft, dynamic flow guide and rotary energy dissipation are achieved, and the device effectively adapts to the changing ocean current direction; flow guide holes in the spiral strakes further enhance the separation and energy dissipation effects of the fluid, and the self weight of the structure is reduced; the modular design allows the installation number to be flexibly adjusted according to the sea condition, and the installation and maintenance process is simplified.

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 relates to a cable connector system for connecting a power cable in a cable connector channel open at the bottom of a floating ocean platform, a cable connector system includes a plug-in connector for insertion into a cable connector channel, a cable hanger secured to a power cable, a plurality of pulling ropes extending side by side between the plug-in connector and the cable hanger, and a cable protector on the cable hanger, the plug-in connector, the pulling rope, the cable hanger, and the cable protector define a subsequent cable path section for an internal cable path of the power cable.

In the construction of offshore wind farms, this provides a marine power conduit interface assembly that reduces cable wear when the cable is passed through a socket that penetrates the base. [Solution] The marine power conduit interface assembly has a slide 20 that is slidable within a housing 10. The assembly is locked into the socket of the energy generator by sliding the slide within the housing. The slide has legs 21 that extend axially in grooves formed on the inner surface of the bore 10b of the housing and is connected to a ring 41 that has a flange 44 extending radially outward from the outer surface of the housing. The ring is connected to the legs by fingers 45 that extend radially inward through slots in the housing. By sliding the slide within the housing, the ram block 31 of the locking device can be locked or unlocked in a predetermined position relative to the locking arm 32.

A high-voltage electrical power supply line for the provides a secure and water-proof connection transfer of high-voltage electricity through an inner high-voltage electrical cable between a single point mooring (SPM) buoy and / or a caternary anchor leg mooring (CALM) buoy and an LNG vessel moored to the SPM CALM buoy, with a secured connection on each end of the high-voltage electrical cable, disallowing and prevent current flow through high-voltage electrical cable until a secure and confirmed connection is established between connectors attaching the high-voltage electrical power supply line to the SPM CALM buoy and the LNG vessel.

An underwater vehicle for installing retaining devices on a pipeline laid on a bed of a body of water has a frame (16); a first locomotion assembly (17) and a second locomotion assembly (18), which are configured to advance the underwater vehicle (7) on the bed (4) of the body of water (5) in a travel direction (D1); a charging seat (19) configured to accommodate a plurality of retaining devices (8) preferably stacked; and an installation mechanism (20) comprising a movable arm (21) configured to take a retaining device (8) from the plurality of retaining devices (8) and to apply the retaining device (8) taken on the underwater pipeline (3).

Disclosed is method of handling a transfer line, comprising a cable connector of a power cable for electrical power transfer between an offshore power source and an offshore unit, such as a vessel. The method comprises obtaining a trigger indication indicating that at least one predetermined condition is met; and on the basis of the trigger indication, causing a feed line of the offshore power source, which feed line is detachably connected to the transfer line, to be paid out from the offshore power source in order to move the transfer line towards the offshore unit.

To provide an offshore system comprising a dynamic submarine power cable.SOLUTION: An offshore system comprises: a dynamic submarine power cable 11; a bend stiffener 9 having a lower end 9b and an upper end 9a, the bend stiffener 9 having a central channel extending from the lower end 9b to the upper end 9a, the central channel receiving the dynamic submarine power cable 11 with a radial spacing between an inner surface of the central channel and an outer surface of the dynamic submarine power cable 11 along the length of the dynamic submarine power cable 11 arranged in the bend stiffener 9, the radial spacing forming a longitudinal channel between the bend stiffener 9 and the dynamic submarine power cable 11; and a fluid flow device 13 configured to generate a fluid flow inside the longitudinal channel.SELECTED DRAWING: Figure 2

This underwater intelligent cable system, equipped with morphological perception and remotely operated capabilities, belongs to the fields of underwater robotics, marine inspection, and engineering measurement and control. In this system, one end of the intelligent cable is fixed to a mother ship, while the other end connects to an ROV (Remotely Operated Vehicle) for flexible deployment via towing. A three-core fiber optic grating sensor is integrated within the cable to acquire strain distribution along its length. Multiple sealed measurement boxes are deployed along the cable to collect environmental data and transmit it back to the mother ship. The mother ship is equipped with an FBG demodulator and a data processing and storage system to calculate curvature or deflection based on strain and reconstruct the cable's three-dimensional morphology. To suppress long-distance integral drift, some measurement boxes integrate IMU (Integrated Mutor Unit) outputs attitude data and calculates tangent vectors, which are then fused with FBG continuous curvature constraints for optimized filtering. Environmental measurements are mapped to corresponding spatial coordinates on the morphological curve according to the calibrated positions of each node along the cable length, forming a spatial registration dataset that is visualized, stored, and queried, improving the efficiency and accuracy of large-scale underwater detection.

A method for holding a cable in a wind turbine transition piece by a cable hang-off device, the method includes providing a cable hang-off device comprising a main body with a first flange, an opposed second flange and a through passage, a sealing sleeve with a sealing passage, at least one temporary clamp, located in the through passage, a clamping plate, and at least one solid sealing element, attaching the main body to the wind turbine transition piece with the first flange, attaching the sealing sleeve to the second flange, inserting the cable through the through passage and the sealing passage sleeve, clamping an outer serving of the cable with the at least one temporary clamp, pealing the outer serving of the cable to reveal armour wires of the cable, folding the armour wires over the second flange in a radially outward direction, with respect to a longitudinal direction of the cable hang-off device, inserting the clamping plate in the sealing passage, clamping the armour wires against the second flange, by the clamping plate, releasing the at least one temporary clamp from outside the main body to release a clamping force from the at least one temporary clamp, inserting the at least one solid sealing element in the sealing passage to at least partially surround one or more conductors of the cable, and sealing the sealing passage with the at least one solid sealing element.

The invention discloses an underwater intelligent cable system with form perception and remote control actuation, and belongs to the technical field of underwater robots, ocean detection and engineering measurement and control. In the system, one end of an intelligent cable is fixed at a mother ship end, and the other end is connected with an ROV and dragged by the ROV to realize flexible laying. A three-core fiber grating sensor is integrated in the cable to obtain strain distribution along the cable, and a plurality of sealed measurement boxes are arranged along the cable to collect environment data and transmit the environment data back to a mother ship end. The mother ship end is provided with an FBG demodulator and a data processing and storing system, curvature or torsion is calculated based on strain, and the three-dimensional form of the cable is reconstructed. In order to restrain long-distance integral drift, part of the measurement boxes integrate IMU output attitudes and calculate tangent vectors, and the measurement boxes are fused with FBG continuous curvature constraints to optimize filtering. Environment measurement values are mapped to corresponding space coordinate points of the form curve according to node cable length calibration positions, a space registration data set is formed and visually stored and inquired, and underwater large-range detection efficiency and data precision are improved.

A submersible substation 103 for use in relation to an offshore energy generation plant, the submersible substation 103 comprises a substation support structure 105; one or more substation components

In the cable connection method, conductors of a first cable and a second cable, which are connected in series with an offshore wind power generation facility and transmit power, are detached from the offshore wind power generation facility, and the ends of the detached conductors are waterproof and are accommodated in a mobile body for each of the first cable and the second cable. A moving body is suspended from an offshore wind power generation facility by a wire rope and stopped in the sea, and the moving body stopped in the sea is salvaged to a workboat. In the present invention, a moving body salvaged to a workboat is disassembled, a conductor end of a first cable and a conductor end of a second cable housed in the moving body are connected, a connecting body having a sealed protective body for housing the connected conductor ends is assembled, and the connecting body is lowered to the sea floor.

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.

An apparatus that a wind turbine configured for floating on a surface of water, wherein the wind turbine is operable to generate electrical energy. The wind turbine can include a floating base configured to support the wind turbine on the surface of water, and a cable configured to transmit the electrical energy. The wind turbine can also include a first sheave configured to support a part of the cable, and a second sheave configured to support a part of the cable. The cable is reeved between the first sheave and second sheave, and the first sheave is operable to impart a predetermined force to the cable to thereby maintain the cable at a predetermined tension.

The utility model discloses a water surface floating laying device for an armored photoelectric composite cable, which comprises an outer floating body and an inner floating body, the inner floating body is an inner air bag arranged on the inner side of the outer floating body, the inner side of the inner floating body is an accommodating cavity for accommodating a cable, and the inner floating body clamps the cable after being inflated, so that the device is fixed on the cable. Positive buoyancy can be provided for the cable to enable the cable to float on the water surface, so that the use safety of the photoelectric composite cable is improved.

When disconnecting cables from equipment on a floating structure and lowering them into the sea, this design minimizes bending of the cables at their base. [Solution] The cable removal method according to the present invention comprises the steps of: attaching a buoyancy body to a cable laid in the sea and connected to equipment on a floating body; removing the end of the cable connected to the equipment from the equipment; and lowering the cable, from which the end has been removed from the equipment, into the sea until the end is separated from the floating body, wherein the buoyancy body is attached in a position where it does not touch the seabed when the end is lowered until it is separated from the floating body.

A submersible substation having a substation support structure with substation components disposed on the substation support structure and optionally one or more array and / or export cable connectors, which is configured for submersed deployment and to be raised and lowered using variable buoyancy control (with a simple and modular buoyancy-controlled support structure) is able to be installed on the seabed in a controlled manner such that it is recoverable for servicing and can be towed to site and installed in position using small ships, such as a harbour tug.

The invention relates to the technical field of ocean engineering, and provides an offshore wind turbine cable protection device with a buoyancy block, which comprises an internal anti-bending device, barbs, a connecting flange, a barb-bending limiter connecting piece, a bending limiter and a buoyancy block, the two ends of the barb are respectively connected with an internal anti-bending device and a barb-bending limiter connecting piece through connecting flanges, the barb-bending limiter connecting piece is connected with a bending limiter, the bending limiter is mounted and covers the surface of a cable, and the buoyancy block is arranged at a grounding point of the submarine cable and is fastened on the outer surface of the bending limiter. Overall omnibearing protection of the cable is realized, and the bending limiter is adopted to effectively protect the flexible cable from generating excessive bending of a static load in the installation or operation stage of the flexible cable; the weight of the cable at a grounding point is reduced by using the buoyancy block, so that the friction between the cable and the seabed is effectively reduced, further the abrasion damage caused by the friction is remarkably reduced, and the service life of the cable can be greatly prolonged.

A power cable guide means end piece 100 for an offshore structure power cable guide means 20, the guide means is securable to the offshore structure 10 and configured to guide a power cable 30 from a

The application provides a submarine cable landing section current sharing and water dripping cooling device, which comprises a water storage pool, a water supply pipe and a water return pipe; the end of the water supply pipe and the end of the water return pipe are connected with the water storage pool; at least one drip irrigation water pipe branch is arranged in parallel between the water supply pipe and the water return pipe; the water inlet of each drip irrigation water pipe branch is connected with the water supply pipe, and the water outlet of each drip irrigation water pipe branch is connected with the water return pipe. Water is supplied to the drip irrigation water pipe branch through the water supply pipe, and then the water is dripped to the outer surface of the submarine cable of the landing section to be cooled through the drip irrigation water pipe branch; the drip irrigation technology can save the water consumption of the device, and the cooling effect of the water flow is fully utilized to cool the surface of the submarine cable of the landing section to be cooled, which is beneficial to the heat dissipation of the conductor of the submarine cable line landing section, thereby improving the current carrying capacity of the submarine cable landing section and increasing the actual transmission capacity of the submarine cable.

In a subsea inter-array cable layout for marine power generation installations, a series of two or more discrete sections of static cable extend in longitudinal succession along a common path. Each cable section comprises a longitudinal portion and at least one lateral portion. The longitudinal portions of the series extend along the path and lateral portions of adjacent cable sections extend laterally outwardly to the same side of the path, as a pair. Connection devices connect to each pair of lateral portions to interconnect the cable sections. The connection devices are spaced from the longitudinal portions by a distance greater than the local water depth so that outboard ends of the lateral portions can be lifted to the surface to effect dry connections without disturbing the longitudinal portions. Additionally, at least one dynamic cable extends from each connection device for connection to a floating unit such as a wind turbine.

The utility model relates to the technical field of underwater test power supply, and particularly discloses an auxiliary kit for underwater equipment test, and a cable group for test comprises a plurality of groups of test cables; the suspension suite comprises an equipment suspension part and a cable suspension part; the equipment suspension part comprises a suspension device and a suspension part; the cable suspension part comprises a main cable, a plurality of groups of first suspension blocks arranged on the main cable and a binding part; the test cable comprises a first working section and a second working section, when the underwater equipment is in a test state, the first working section connected with the underwater equipment is arranged below the water surface, and the second working section is arranged on the cable suspension part through the binding part and is arranged on the water surface. According to the utility model, the second working section in the test cable can be restrained through the cable suspension part and is forced to suspend on the water surface, so that the influence of unpredictable turbulent flow in water on the test cable is weakened, and the occurrence of damage and the like caused by mutual winding of multiple groups of test cables is greatly reduced.

The invention relates to a cable connector system for connecting an electric power cable in a cable connector channel that debouches at a bottom of a floating marine platform, wherein the cable connector system comprises an insert connector for insertion into the cable connector channel, a cable hang-off to be fixated to the electric power cable, multiple pulling ropes that extend aside each other between the insert connector and the cable hang-off, and a cable protector on the cable hang-off, wherein the insert connector, the pulling ropes, the cable hang-off and the cable protector define subsequent cable passage sections of an internal cable passage for the electric power cable.

The utility model discloses an underwater multi-cable stable suspension device, which relates to the field of line arrangement and comprises a wiring board fixed underwater, and a plurality of hoops are arranged on the wiring board side by side and used for positioning and arranging cables. Sound wave emitters are assembled at the two ends of the wire arrangement plate, a rope is bound to the top of the wire arrangement plate, a floating plate is bound to the other end of the rope, the floating plate floats on the water surface, a storage battery and a photovoltaic panel are assembled at the top of the floating plate, and wires are connected between the storage battery and the sound wave emitters. The underwater cable driving device can mark the position of an underwater cable, and drives underwater creatures around the cable by emitting sound waves, so that the cable is prevented from being damaged by the underwater creatures, and the cable is ensured to be stably and safely arranged and pass underwater.

The application relates to a floating offshore structure (100, 200, 300, 400, 500, 600), comprising at least one submarine power cable connection point (106, 606) designed for connecting a submarine power cable (116, 616), at least one anchor connection point (114, 314, 414, 514, 614) designed for connecting at least one anchor connection (122, 322, 422, 522, 622) for anchoring the floating offshore structure (100, 200, 300, 400, 500, 600) to subaquatic floor, at least one detection assembly (108, 208, 308, 408, 508, 608) designed to detect an anchor connection break indication, and at least one switching device (112, 212, 312, 412, 512, 612) designed to at least electrically disconnect the electrical connection to the submarine power cable (116, 616) connected to the submarine power cable connection point (106, 606) upon or after detection of an anchor connection break indication.