48results about "Floating cables" 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

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.

The invention belongs to the technical field of marine exploration equipment, and discloses an acquisition and transmission module and an offshore seismic exploration acquisition cable using the same. The acquisition and transmission module is embedded in a reserved window of an acquisition cable, and comprises two waterproof end blocks which are in fusion connection with a cable core wire and a cable sheath layer and are used for axial limiting and end sealing; the protective shell is internally provided with a space for accommodating the acquisition control circuit board; the two fixing end caps are used for fixing the shell; the limiting assembly is composed of a lining ring, a limiting block and a limiting supporting column and connected between the waterproof end block and the fixing end cap. The acquisition and transmission module fills gaps of all parts through an internal adhesive structure so as to be solidified into a whole, and the exterior is integrally wrapped by an injection molding protective layer. According to the acquisition and transmission module, the problems that the module is easy to loosen, poor in sealing and difficult to maintain in a complex marine environment are solved, and the stability and reliability of seismic data acquisition are remarkably improved.

The application discloses a light storage straight flexible cable with corrosion resistance and a protection structure thereof, and particularly relates to the technical field of light storage straight flexible technology, and comprises a photovoltaic power generation mechanism, wherein the photovoltaic power generation mechanism comprises an annular floating body pipe floating on the water surface, the inner ring of the annular floating body pipe is provided with a high-elasticity film, and the high-elasticity film is uniformly provided with a plurality of photovoltaic panels; the annular floating body pipe is concentrically provided with a mounting ring, the mounting ring is arranged in parallel with the annular floating body pipe, the mounting ring is provided with a protection mechanism, and the protection mechanism comprises a plurality of protection sleeves fixedly mounted on the mounting ring. The protection mechanism is arranged, so that when the high-elasticity film fluctuates up and down with waves, the cable between the photovoltaic panel and the mounting ring is limited to swing in a small range in the protection sleeve, and thus the deformation range of the cable is effectively reduced, and the service life of the cable is significantly prolonged.

The invention discloses a long-service-life water floating light-emitting cable and a manufacturing method, and belongs to the technical field of cables, the long-service-life water floating light-emitting cable comprises a conductor, an insulating layer, a protective layer and a waterproof layer which are sequentially arranged from inside to outside, the conductor is a stranded conductor formed by stranding a plurality of strands of monofilaments, the insulating layer is made of crosslinked polyethylene, the insulating layer is of an 8-shaped structure, and the waterproof layer is made of polyethylene. Two annular rings are formed on the cross section of the 8-shaped structure, and the conductors are arranged in the annular rings; the air bags are symmetrically arranged outside the annular ring; the volume fraction configuration of the air bag enables the overall average density of the cable to be not greater than 0.90 g.cm. According to the invention, the sealed air bag extending axially is arranged in the cable, and the cable can float on the water surface, so that a lot of dependence on a shore-based fixed lamp or an external floating body is eliminated, the cost of on-site mounting and fixing components is remarkably reduced, and the mobility is improved; the air bags are continuously distributed in the axial direction to ensure the stability of the linear floating body, and the maintenance frequency and the labor cost are reduced.

The invention relates to the technical field of offshore wind power generation, and provides a submersible submarine cable. The cable comprises a cable core, a filling layer and a buoyancy adjusting unit. The filling layer is filled and wraps the outer side of the cable core, the buoyancy adjusting unit is embedded in the filling layer, the buoyancy can be flexibly adjusted, and the submarine cable is made to suspend at the target depth between the sea surface and the seabed. Grooves do not need to be excavated on the seabed, the cable is directly put and positioned during laying, the cable can automatically return to the preset depth after maintenance, the process is greatly simplified, and cost is reduced. Suspension design adapts to a complex geological area, geological activity damage is avoided, and the project site selection range is expanded; the heat dissipation mode of direct contact with flowing seawater effectively reduces the temperature of the conductor and avoids the reduction of the current-carrying capacity. The system has static cable stability and dynamic cable anti-fatigue performance and can be directly connected with a floating fan and a mainland power grid, the fault risk of an intermediate joint is eliminated, and the buoyancy adjusting unit can dynamically adapt to environmental changes and maintain suspension stability.

The utility model discloses a flat floating cable for an environment monitoring platform. The cable comprises collection units and an outer sheath collection, the four collection units which are used for two power transmission, one differential signal transmission and one signal control transmission and are arranged side by side in parallel are arranged in an outer sheath, and the periphery of each collection unit is wrapped by the outer sheath; in the collection unit, the peripheries of the cable cores and the filling assemblies are wrapped by a wrapping layer, and the filling assemblies are arranged in gaps between the cable cores and the wrapping layer and gaps in the cable cores. The cable is ingenious in structural design, each collection unit core wire unit, the Kevlar fiber and the water-blocking yarn filling assembly are integrated to form the cable, and due to the design of the flat structure, the installation space is effectively saved, the wiring flexibility is improved, and the cost is reduced. And normal power and signal transmission functions of the cable can be ensured in severe working environments such as deep sea monitoring and underwater construction for a long time.

The utility model relates to a kind of floating luminous cable, cable appearance is flat strip, including mutually spaced first conductor and second conductor, for the insulator of separating and wrapping first conductor and second conductor, the cross section of insulator is dumbbell ball type, one air bag is respectively arranged in the upper and lower space of insulator, the periphery of insulator and two air bags is wrapped with a protective layer, the protective layer includes luminophor, the periphery of protective layer is wrapped with a water-blocking layer.Cable self-luminous changes point light source into line light source, so that fish distribution is more uniform.Water-resistant performance has, meet the requirement of long-term use in water, improve use safety, avoid electric leakage hidden danger.Cable can float on water surface, with warning line effect, float with water surface without affecting drag-net fishing and other production activities.Cable structure is symmetrical, simple, compact, processing is convenient, material cost is low, multipurpose is conducive to reducing breeder investment.

A rigid submarine power cable joint including: an outer casing having a first axial end face and a second axial end face at an opposite axial end of the outer casing relative to the first axial end face, wherein the first axial end face includes a single opening configured to receive a multi-core dynamic submarine power cable, and wherein the second axial end face includes two openings, each configured to receive a respective single core submarine power cable.

This application relates to the field of cable technology, specifically disclosing a surface-floating reflective charging cable for ships and its manufacturing method. By applying the base material of this application, the tensile strength of the cable outer sheath can be significantly improved, making it less prone to tensile fracture and contributing to the stable operation of shore power systems. Furthermore, the addition of fluorescent powder provides the cable with increased visibility, making it more conspicuous at night and on rainy days, helping to prevent snagging by passing ships and port machinery. Moreover, the cable outer sheath is less prone to tensile fracture when snagged by ships, further contributing to the stable operation of shore power systems.

The utility model discloses a high-strength tensile marine cable structure, which belongs to the technical field of cables and comprises cable cores, a waterproof film wrapped outside the cable cores, a shielding layer wrapped outside the waterproof film and an outer sheath layer outside the shielding layer. An inner tensile steel wire is arranged in the middle of the cable core, a tensile filling rope is filled between the outer side of the cable core and the waterproof film, and an inner anti-skid mechanism is arranged between the outer side of the waterproof film and the shielding layer. The tensile strength inside the cable is increased through the inner tensile steel wires among the cables and the tensile filling ropes outside the cable, and the friction force among the layers inside the cable can be increased through the outer anti-skid mechanism composed of the woven mesh layer and the outer tensile steel wires and the inner anti-skid mechanism composed of the gridding cloth and the magnesium carbonate powder. And the condition of relative sliding under the condition of tensile force is avoided, and the layers of the cable are mutually restricted, so that the tensile strength is further improved.

The application belongs to the cable technical field, disclose a kind of cable for water conservancy project, including cable body, the cable body is wrapped with annular air bag, the annular air bag outside is fixed and is communicated with inflation pipe, the inflation pipe end is provided with the end cap of inflation pipe snap fit, the cable body is provided with the fixing assembly for fixing annular air bag, the annular air bag is equipped with multiple and about the uniform setting of cable body outer wall.This application, multiple annular air bags cooperate, so that the cable body has played good protection and buffering effect, the cable body has played effective protection effect, and it is favorable to prolong the service life of cable.

The application provides a submarine communication cable, relates to the cable field, and comprises a core and an inner protective layer, a shielding layer and an outer protective layer which are sequentially wrapped from inside to outside, further comprises an elastic layer and a gas delivery assembly, the elastic layer is wrapped outside the outer protective layer, there is a gap between the outer protective layer and the elastic layer, and the gas delivery assembly is located in the gap; the gas delivery assembly comprises a gas delivery pipe, solenoid valves and a bus, the gas delivery pipe is connected with the solenoid valves, and the solenoid valves are arranged at equal intervals along the axial direction of the gas delivery pipe; a plurality of radial partitions are arranged in the gap, the radial partitions are arranged around the outer protective layer, the inner ring of the radial partitions is fixedly connected with the outer side surface of the outer protective layer, and the outer ring is fixedly connected with the inner side surface of the elastic layer; the radial partitions divide the gap into a plurality of annular cavities, the gas delivery pipe penetrates through the radial partitions, and the solenoid valves are located in the annular cavities, respectively; the bus is fixed to the outer surface of the gas delivery pipe, and the solenoid valves are connected with the bus, respectively.

A jacket assembly 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. Each jacket comprises a fluid displacing buoyancy element extending longitudinally between a first edge and a second edge and has a circumferential interior surface between the first edge and the second edge, the circumferential interior surface configured to bound a first inner cylindrical volume. The plurality of fluid displacing buoyancy elements comprises a first subset of fluid displacing buoyancy elements and a second subset of fluid displacing buoyancy elements. The first subset of the plurality of fluid displacing buoyancy elements has a first buoyancy value the second subset of the plurality of fluid displacing buoyancy elements has a second buoyancy value different from the first buoyancy value.

The utility model discloses a photovoltaic cable, which comprises a carbon fiber wire positioned in the center, a plurality of copper wires twisted on the carbon fiber wire to form a copper conductor, an insulating layer coated on the surface of the copper conductor, an inner sheath layer coated on the outer surface of the insulating layer, and an outer sheath layer coated on the outer surface of the inner sheath layer, a metal braid layer is arranged between the outer sheath layer and the inner sheath layer, and the metal braid layer is formed by weaving a plurality of metal wires; a plurality of holes are arranged in the outer sheath layer, and the volume of the holes accounts for 40-60% of the volume of the outer sheath layer. According to the photovoltaic cable provided by the utility model, the tensile property of the cable is improved, the cable pair is prevented from being damaged when the cable is dragged, so that the dragging construction of the cable is facilitated, and the layering between the outer sheath layer and the inner sheath layer after long-term use is also avoided.

The invention relates to the technical field of cables, and particularly discloses a high-reliability water-blocking double-core photovoltaic cable for floating on the sea, the cable comprises two cable cores which are distributed in parallel, each cable core comprises a conductor, an insulating layer wrapping the outer side of the conductor and a waterproof layer wrapping the outer side of the insulating layer, the two cable cores which are distributed in parallel are wrapped with a sheath, and the sheath is wrapped with a waterproof layer. The sheath connects the two cable cores along the transverse direction to form an integral double-core photovoltaic cable; and a plurality of steel wires distributed along the longitudinal direction of the sheath are also arranged in the sheath. The sheath is prepared from the following components in parts by weight: 15 to 30 parts of ethylene-vinyl acetate copolymer, 15 to 30 parts of polyethylene, 5 to 20 parts of ethylene-octylene copolymer, 5 to 20 parts of modified basalt, 4 to 10 parts of thermoplastic polyurethane, 2 to 6 parts of compatilizer, 0.5 to 5 parts of hyperbranched polyester, 0.5 to 4 parts of cross-linking agent, 60 to 100 parts of flame retardant and 0.5 to 5 parts of other auxiliaries. The cable has excellent mechanical properties, heat aging resistance and salt spray resistance.

The invention relates to a floating type water photovoltaic dynamic cable and a manufacturing method thereof, and relates to the technical field of cables. The floating type overwater photovoltaic dynamic cable comprises a core body, an isolation sleeve layer, a first armor layer and a first sheath layer, the core body comprises a cable core assembly and optical fiber sensing units, the cable core assembly comprises a plurality of power line cores and elastic filling pieces which are twisted, the optical fiber sensing units are continuously arranged among the power line cores, and the first armor layer is arranged between the power line cores. The optical fiber sensing unit is at least used for detecting the propagation characteristic change of an optical signal in the optical fiber so as to monitor temperature and vibration parameters in real time, and the first sheath layer comprises salt-fog-resistant high-density polyethylene, an anti-ultraviolet auxiliary agent and an anti-biological adhesion auxiliary agent. According to the application, the power wire cores and the elastic filling member are twisted, and the salt-fog-resistant high-density polyethylene, the anti-ultraviolet auxiliary agent and the anti-biological adhesion auxiliary agent are arranged in the first sheath layer, so that the flexibility, the fatigue resistance, the corrosion resistance and the aging resistance are improved.

The application provides a manufacturing method of an anti-fatigue submarine high-voltage dynamic cable for deep-sea floating wind power, and relates to the technical field of submarine cable manufacturing.The method comprises the following steps: treating oxygen-free copper wire to form a water-blocking copper conductor; coating a semiconductive material on the surface to form a semiconductive conductor shielding layer; coating XLPE cross-linked polyethylene material to form an XLPE cross-linked polyethylene insulation layer; coating a semiconductive material on the surface to form a semiconductive insulation shielding layer; twisting copper wire on the surface of the semiconductive insulation shielding layer to form a copper wire shielding layer, and winding copper tape to form a copper tape shielding layer; extruding an inner layer of high-density polyethylene sheath layer on the surface of the copper tape shielding layer; arranging an optical fiber unit and aramid fiber reinforcing rib on the outer surface of the inner layer of high-density polyethylene sheath layer to form an optical fiber unit and aramid fiber reinforcing rib filling layer; coating high-carbon steel wire to form a double-layer galvanized steel wire armor layer; and extruding an outer layer of high-density polyethylene sheath layer on the surface of the double-layer galvanized steel wire armor layer to form a cable.

The utility model provides a photovoltaic cable with a self-floating water-blocking function, and the cable comprises a plurality of wire cores, insulating layers which wrap the peripheries of the wire cores, a water-blocking layer group which wraps the peripheries of the insulating layers, a buoyancy filling assembly which is disposed between the insulating layers and the water-blocking layer group, and a reinforcing layer group which wraps the peripheries of the water-blocking layers. The buoyancy filling assemblies are made of materials with the buoyancy density ranging from 0.78 g / cm < 3 > to 0.85 g / cm < 3 >, after the buoyancy filling assemblies are filled in the cable, the cable can be laid on the sea surface by means of the buoyancy of the cable, the cable does not need to be arranged on a floating body support, the cable can be directly placed on the sea surface to complete cable routing work, the cable routing difficulty is reduced, and the service life of the cable is prolonged. The cable can be prevented from being directly exposed in the sun, the aging speed of the cable is reduced, the service life of the cable is prolonged, and the cable has the advantages of simple structure, labor cost saving and convenience in popularization and implementation.

The application discloses a kind of clean cable of semiconductor equipment air floatation movement platform with bending resistance, belong to cable technical field, including cable body and be used for the installation base of cable body limit, cable body includes combination conductor, combination conductor both ends are connected with terminal, terminal is connected with installation base by fixing part, terminal end is provided with installation wind cover, and force arm traction piece is provided on terminal for reducing the pressure of combination conductor.The application is provided with air passage in the cable, and the opening and closing air hole is provided with dynamic adjustment in the air passage, and the upward buoyancy is generated when releasing trace gas in linear motion, the normal pressure of motion platform is effectively reduced by cable dead weight, the friction and abrasion when cable movement are reduced, the opening and closing air hole is automatically opened when cable bending is stretched, the air impact baffle generates counterthrust, and dynamic support is provided for the cable of bending place, the influence of partial gravity is offset, and the interference of air floatation movement platform is reduced.

The utility model relates to the technical field of cables, in particular to a watertight floating differential signal ocean exploration cable, which comprises an integral cable core and a protection structure arranged outside the integral cable core. Wherein the integral cable core comprises a differential signal cable, a control cable and a power cable; the differential signal cable comprises a plurality of twisted-pair structures, each twisted-pair structure comprises two differential signal wire cores which are used for transmitting two signals with the same amplitude and opposite phases, and data are obtained through the difference value of the two signals. When interference occurs, interference signals act on the two differential signal wire cores at the same time, obtained data are not affected, and the anti-interference capacity of signal transmission is improved. The problem that the weight of the cable is increased due to the metal shielding layer in the prior art is solved. In addition, the cable can bear certain underwater pressure and water is prevented from entering the cable by filling the water-blocking glue and the water-blocking tape; by arranging the buoyancy filler and the buoyancy adjusting layer, the density of the cable is reduced.

The invention discloses a zero-buoyancy umbilical cable structure and a design method thereof, the structure comprises a zero-buoyancy cable, a high-pressure water pipe, a buoyancy ball device and other components, the cable and the high-pressure water pipe are respectively fixed on the buoyancy ball device, and the buoyancy ball device balances the weight of the high-pressure water pipe and the zero-buoyancy cable. And the total gravity and the total buoyancy of the zero-buoyancy umbilical cable structure are balanced. Wherein the zero-buoyancy cable mainly comprises a coaxial cable of an analog camera, a communication cable for communication between underwater equipment and water equipment, a power supply cable of the underwater equipment and the like; the buoyancy ball device mainly comprises an oval buoyancy ball, buckles and the like, the high-pressure water pipe and the zero-buoyancy cable are contained in line opening grooves formed in the upper side and the lower side of a long shaft of the oval buoyancy ball, the two ends of the long shaft are matched with the buckles to be fixed, a through hole is formed in a short shaft of the long shaft of the buoyancy ball, and a rolled belt penetrates through the through hole to fix the high-pressure water pipe and the cable. Dragging and power consumption caused by cable dragging and water flow are avoided, and the equipment stability is improved.

The utility model provides an offshore low-voltage power cable. The offshore low-voltage power cable comprises a plurality of cable core assemblies, a sheath assembly and a filling part, the sheath assembly comprises a glass fiber belt, an aluminum alloy composite belt and an outer sheath which are sequentially arranged on the peripheries of the cable core assemblies in a wrapping mode, and the aluminum alloy composite belt is arranged in a longitudinal wrapping mode; the filling member is arranged in the sheath assembly, and the filling member is filled among the plurality of cable core assemblies. In the offshore low-voltage power cable provided by the invention, the glass fiber tape has relatively good tensile strength and corrosion resistance, and the aluminum alloy composite tape is made of an aluminum alloy composite material, has relatively good anti-extrusion strength, and can replace a steel tape armor layer. Besides, the aluminum alloy composite belt is wrapped on the periphery of the glass fiber belt in a longitudinal wrapping mode, a closed structure can be formed, seawater, salt mist and the like are prevented from entering the cable, excellent waterproof performance is achieved, and therefore the service life of the cable is prolonged.

The invention discloses an offshore floating wind power generation cable, and relates to the technical field of wind power generation cables, the offshore floating wind power generation cable comprises a conductor, a shielding layer is sleeved outside the conductor, an insulating layer is arranged on the outer side of the shielding layer, the offshore floating wind power generation cable further comprises a waterproof layer and a protective sleeve, and a warning buoy is arranged in the waterproof layer. The warning buoy is fixedly connected to the waterproof layer through a string, at least two warning boxes are fixedly connected to the circumferential wall of the waterproof layer, the bottom of each warning box is rotationally connected with a rotating shaft, and at least two metal balls are fixedly connected to the side wall of each rotating shaft. The purpose of dispersing fish schools is achieved, the impact force of the fish schools on the conductor when the fish schools pass through the waterproof layer is reduced, damage to the connecting portion of the conductor and the wind power generation equipment is avoided, and when a diver makes contact with the protective sleeve, sound generated by the metal balls and the metal plates can warn the diver and remind the diver to be away from the protective sleeve.

The invention discloses a bending-resistant clean cable for a semiconductor equipment air floating motion platform, and belongs to the technical field of cables, the bending-resistant clean cable comprises a cable body and a mounting base used for limiting the cable body, the cable body comprises a combined conductor, the two ends of the combined conductor are connected with wiring terminals, the wiring terminals are connected with the mounting base through fixing pieces, and the fixing pieces are connected with the cable body. The end part of the wiring terminal is provided with an installation wind cover, and the wiring terminal is provided with a force arm traction member used for reducing the pressure of the combined conductor. The air channel opening is formed in the cable, the dynamically-adjusted opening and closing air hole is formed in the air channel opening, a trace amount of air is released during linear motion to generate upward buoyancy, the positive pressure of the cable self weight on a motion platform is effectively reduced, friction and abrasion of the cable during motion are reduced, and the opening and closing air hole is automatically opened by stretching when the cable is bent; the exhausted gas impacts the wind shield to generate reverse thrust, dynamic support is provided for the cable at the bending position, part of gravity influence is counteracted, and interference to the air floating motion platform is reduced.

To provide a rigid submarine power cable joint for connecting a multicore DC dynamic submarine power cable to a static submarine power cable on the seabed.SOLUTION: A rigid submarine power cable joint 7 comprises an outer casing 7a. The outer casing 7a includes a first axial end face 7b and a second axial end face which is in an axial end of the outer casing 7a at an opposite side of the first axial end face 7b. The first axial end face 7b includes a single opening 7c in which a multicore dynamic submarine power cable is received, and the second axial end face includes two openings for receiving respective single-core submarine power cables.SELECTED DRAWING: Figure 3a

The utility model relates to the technical field of cables, in particular to a floating cable special for an underwater robot. Comprising an outer cable and multiple groups of cable cores in the outer cable, an outer wrapping layer is arranged in the outer cable and surrounds the multiple groups of cable cores, multiple groups of cylindrical holes are formed in the outer wrapping layer, multiple groups of strip-shaped columns are placed in the cylindrical holes, and the strip-shaped columns are filled with gas with the density smaller than that of water. The cable is made of a normal material, the floating force is improved through the gas in the strip-shaped columns in the wrapping layer, and the service life of the cable can be guaranteed while floating is achieved.

The invention relates to the technical field of floating cables, and particularly discloses a power cable which comprises a cable body, a self-cleaning assembly is arranged on the cable body, the overall density of the cable body and the self-cleaning assembly is smaller than the density of water, and the self-cleaning assembly comprises a first rotating sleeve and a second rotating sleeve. The first rotating sleeve and the second rotating sleeve are uniformly arranged on the cable body in a sleeving manner and can rotate relative to the axis, a plurality of connecting parts are arranged on the two end surfaces of the rotating sleeves, a rope-shaped connecting piece is arranged between every two adjacent rotating sleeves, and the two ends of the rope-shaped connecting piece are connected with the connecting parts on the two rotating sleeves respectively; blades I are arranged on the outer circumferential surface of the rotating sleeve I at equal intervals, the rope-shaped connecting piece rotates around the cable body, continuous wiping can be formed on the surface of the cable body, biological larvae are prevented from being planted on the surface, and meanwhile, the rotating blades I and blades II can also disturb surrounding water flow to form local vortexes to further interfere the biological attachment environment.

The invention discloses a rectangular heavy-load cable for ships and a preparation method thereof, and belongs to the technical field of cables for ships and ocean engineering. According to the rectangular heavy-load cable, a plurality of conductive cables are arranged in rows and columns to form a rectangular cable array, and a segmented structure in which glue injection constraint sections and non-glue injection flexible sections are alternately distributed is arranged in the length direction of the cable, so that the cable forms non-uniform rigidity distribution in the length direction. Meanwhile, the bending rigidity of the cable in the transverse direction and the longitudinal direction is different through the rectangular section structure, the two-dimensional different-rigidity characteristic is formed, and regular bending and winding forms of the cable in the laying and recycling process are facilitated. The glue injection restraining section injects a glue material into the cable array to achieve integral forming and restraining, and the exterior of the glue injection restraining section is coated with a foam buoyancy material so as to adjust the integral buoyancy state of the cable. The cable is clear in structure, and is suitable for ship and ocean engineering operation cables under large-size and heavy-load working conditions.