798results about "Cable installations on ground" patented technology

The invention discloses a combined bending protection device based on dynamic design, and relates to the technical field of submarine cable protection. Oyster reefs are arranged around the protection device, the protection device comprises a J-shaped pipe, a center clamp, a conical pipe and a bending limiter which are sequentially connected, one end of the center clamp is connected with the J-shaped pipe, and the other end of the center clamp is connected with the bending limiter through the conical pipe. The bending limiter comprises a plurality of bending limiting units connected in sequence, each bending limiting unit comprises two bending limiting single bodies, one side of each bending limiting single body is provided with a rotating protruding block, the other side of each bending limiting single body is provided with a rotating groove, and the rotating protruding blocks are rotationally connected with the rotating grooves. Through cooperation of the J-shaped pipe, the conical pipe and the bending limiting device, the stress concentration problem can be effectively relieved, the protection performance of the submarine cable in a complex dynamic environment is enhanced, the construction efficiency is remarkably improved through cooperation of the rotating protruding block and the rotating groove, meanwhile, the submarine cable can be prevented from being scoured through cooperation of the protection device and the oyster reef, and the service life of the submarine cable is prolonged. The method has good protective property and ecological property, and can generate economic benefits.

The invention discloses a marine pipe cable damping device which comprises a double-layer pipe body, a damping device and a damping device, and the double-layer pipe body is arranged outside a marine pipe cable in a sleeving mode and fixed to the marine pipe cable through a buckling device; the double-layer pipe body comprises an outer-layer pipe and an inner-layer pipe which are coaxially arranged, an interlayer space is arranged between the outer-layer pipe and the inner-layer pipe, a drainage hole communicated with the interlayer space is formed in the outer-layer pipe, an inflation buoyancy module is arranged in the interlayer space, a vibration power generation device is fixed to the outer-layer pipe, and a water pressure sensor is installed on the outer surface of the vibration power generation device; a controller is arranged on the outer surface of the outer-layer pipe, and the vibration power generation device is electrically connected with the controller; the water pressure sensor is electrically connected with the controller, and the controller is electrically connected with the inflatable buoyancy module; and a plurality of vibration reduction fins are irregularly distributed and fixed on the outer surface of the outer-layer pipe. The marine flexible pipe cable can achieve efficient vibration reduction and buoyancy adjustment, and then the stability, durability and safety of the marine flexible pipe cable in a complex dynamic environment are improved.

An apparatus, system, and method for deploying a tubular body across a gap. The tubular body is fixed to a surface on either side of the gap. The system includes a first connector housing fixed to the first surface and a second connector housing fixed to a second surface. An insertion end of the first connector housing is smaller than a receiving end of the second connector housing such that the insertion end of the first connector is insertable into the receiving end of the second connector housing. The tubular body passes continuously through the interior volume of the first connector housing and through the interior volume of the second connector housing.

The utility model discloses an anchoring device for submarine cables, which relates to the technical field of anchoring devices and comprises a base, the upper surface of the base is rotatably connected with a rotating plate, an anchoring seat is fixedly mounted on the upper surface of the rotating plate, a mounting groove is formed in the surface of the anchoring seat, and a reminding component is arranged in the anchoring seat. According to the anchoring device for the submarine cable, through the arrangement of the reminding assembly, when the anchoring device is damaged, the submarine cable cannot be effectively limited, the submarine cable can slide in the anchoring device, then the submarine cable is driven to slide on the surface of the rolling wheel, and the rolling wheel is made to rotate; and when a patrol ship on the sea surface penetrates through the floating block, the anchoring device is damaged, and the submarine cable cannot be effectively limited, so that a worker can be notified to carry out maintenance operation in time, and the loss caused by accidents is further reduced.

The utility model discloses a dynamic submarine cable system for multiple platforms, which comprises a dynamic submarine cable, a bending limiter, J-shaped cable protection pipes, a buoyancy block, a floating type photovoltaic platform and a fan tower drum, two groups of J-shaped cable protection pipes are respectively arranged on the floating type photovoltaic platform and the fan tower drum, and the bending limiter is arranged at the bottom of each J-shaped cable protection pipe; the dynamic submarine cable penetrates through the J-shaped cable protection pipes and the bending limiting devices on the two sides, and a plurality of buoyancy blocks are arranged on the dynamic submarine cable and located between the two bending limiting devices in a sleeving mode. The dynamic cable system can adapt to changes of marine environments such as waves, tides and ocean currents, and therefore the safety performance of submarine cables is improved; if the tension of the submarine cable is too large, the wet weight can be reduced by increasing the length of the submarine cable or adjusting the using number of the buoyancy blocks, and if the curvature of the submarine cable is too large, the dynamic section length of the submarine cable needs to be shortened, and meanwhile, the tension is increased and adjusted to meet the requirement.

The invention relates to the technical field of submarine cables, and discloses an anti-scour structure for a submarine cable. According to the anti-scour structure, the installation body is directly installed on the outer side of the submarine cable, protection can be provided for the submarine cable, the elastic deformation body arching in the direction of the installation body is arranged, the elastic deformation body and the supporting part are arranged in the same plane after being pressed, and a plane negative pressure structure is formed; the submarine cable is fixed by adsorbing sand at the bottom, water flow scouring and external dragging force are effectively resisted, and compared with a traditional scheme that the burial depth is increased or a large-area cement board is used, the anti-scouring structure of the structure can achieve negative pressure adsorption, can be more tightly attached to the submarine topography, prevents sand loss, and improves the service life of the submarine cable. Large-scale excavation or laying on the seabed is not needed, the construction period is shortened, the construction cost and time are remarkably reduced, and the risk of missing the optimal construction window is reduced.

A transfer system connectable to an offshore structure. The transfer system has a transfer device connectable to a connector box on the offshore structure. The transfer device has a tensile element. The transfer device is defined with a lower section and an upper section, where the tensile element is removed from at least parts of the upper section. The transfer system further has a hang-off device with a base mechanically connectable to the offshore structure. The hang-off device has a first element pivotably connected to the base at a first pivoting axis. The lower section is suspended from the first element into a wet zone of the offshore structure while the upper section is extending above the first element into a dry zone of the offshore structure.

The invention belongs to the technical field of ocean engineering equipment and underwater detection, and particularly discloses a far-field sensing and positioning method for a submarine cable of a cable laying robot based on a multi-modal sensor, electronic equipment and a readable storage medium. The method comprises the following steps: S1, acquiring acoustic, optical, magnetic and electric field original data of the submarine cable by using a multi-mode sensor array; s2, constructing an original data set with time-space synchronization, ensuring that timestamps and space coordinates of acoustics, optics, magnetic force and electric field data are consistent, and forming a standardized four-dimensional tensor data set; s3, performing space-time registration and joint noise reduction processing on the original data to generate standardized sensing data; s4, constructing a dynamic environment fusion model for fusing the real-time sea condition parameters and the prior knowledge base to generate environment constraint conditions; s5, iteratively calculating the position of the cable by adopting a prediction-correction mechanism based on a particle filtering and model prediction control algorithm; and S6, outputting cable positioning coordinates and cable laying robot adaptive path planning parameters.

The present invention relates to the technical field of communication equipment, and discloses an automatic laying and wiring device for communication cables, including a laying roller and a serrated plate. The side wall of the serrated plate is movably installed with a laying roller through a mounting frame. A communication cable is wound around the arc-shaped outer wall of the laying roller. The bottom side wall of the serrated plate is fixedly connected with a guiding sleeve. A large guiding wheel is rotatably installed on the inner surface of the guiding sleeve. A cable laying component is arranged inside the guiding sleeve to achieve preliminary positioning of the communication cable in the trench during laying. A soil covering component is arranged inside the guiding sleeve to cover the laid communication cable and pat it tightly. By setting the cable laying component, the communication cable is gradually loosened as the laying wheel rotates. During this process, the guiding and pressing positioning of the communication cable laying are realized, avoiding the situation of deviation or skew after laying between the communication cable and the ground trench, thereby affecting the laying effect of the communication cable and the protection effect of the trench on it after laying.

The utility model relates to a telescopic seabed emergency repair adapter of a bending limiter, which comprises a first joint, a second joint, a first telescopic cylinder and a second telescopic cylinder, a telescopic structure is arranged between the first telescopic cylinder and the second telescopic cylinder, and the first telescopic cylinder and the second telescopic cylinder are telescopically lapped together. The telescopic structure enables the length of the first telescopic cylinder and the second telescopic cylinder which are lapped together to change; the first connector and the second connector are the same in structure, the first connector is assembled at one end of the first telescopic cylinder, and the second connector is assembled at one end of the second telescopic cylinder. The telescopic seabed first-aid repair adapter of the bending limiter is simple in structure, easy to operate, high in stability and high in adaptability due to the fact that the telescopic length is variable, and when first-aid repair personnel conduct seabed first-aid repair, operation is easy and convenient, consumed time is short, and safety and reliability are achieved.

The invention relates to the technical field of cable trenches, and discloses a multifunctional cable trench for a transformer substation, which comprises a cable trench, the inner wall of the cable trench is fixedly connected with a reinforcing plate, the surface of the reinforcing plate is provided with a screw hole, the inner wall of the screw hole is in threaded connection with a threaded rod, and the reinforcing plate is internally provided with a supporting part; the supporting part comprises a sliding groove plate, the surface of the sliding groove plate is fixedly connected with the surface of the reinforcing plate, a movable frame is slidably connected to the surface of the sliding groove plate, and a sliding plate is fixedly connected to the inner wall of the movable frame. The reinforcing plate is arranged in the cable trench, the bearing strength of the cable trench is improved through the reinforcing plate, the sliding groove plate is arranged on the surface of the reinforcing plate to limit the moving frame, the sliding plate is arranged in the moving frame, and the moving frame is limited on the surface of the sliding groove plate through the sliding plate, so that the cable supporting stability of the moving frame is improved; the supporting frame is arranged on the surface of the moving frame, an operator can lay the cable on the surface of the supporting frame, and it is ensured that the cable can be stably placed on the reinforcing plate.

The invention discloses a submarine cable dynamic anchoring device for submarine cable construction and a using method thereof, and relates to the field of submarine cable construction.The submarine cable dynamic anchoring device comprises a base, a movable seat and a mounting seat, positioning assemblies are symmetrically mounted at the two ends of the top of the mounting seat, and threaded rods are in threaded connection with the interiors of inner cavities of the positioning assemblies; the bottom of the threaded rod is rotationally connected with a fixing assembly, the two ends of an inner cavity of the positioning assembly are symmetrically and movably connected with clamping blocks, the two ends of an inner cavity of the movable base are symmetrically and movably connected with movable plates, a soft cushion is installed in the center of the top of the movable base, and the two ends of the two sides of the movable base are symmetrically and movably connected with locking assemblies. According to the submarine cable dynamic anchoring device for submarine cable construction and the using method of the submarine cable dynamic anchoring device, the device can be dynamically adjusted according to the size and the mounting angle of a submarine cable, the mounting and using effects of the submarine cable can be improved on the basis, and meanwhile subsequent submarine cable taking-out for maintenance work is facilitated.

A floating cable connection for an offshore structure such as a floating wind turbine comprises two or more substantially parallel elongate tubes each comprising an internal passageway for accommodating a respective cable. At least one buoyant element is fixed to the tubes and support formations fixed relative to the or each buoyant element are arranged to hold the tubes in an upright orientation on the offshore structure. The buoyant element comprises a hollow housing containing at least one electrical connector such as a junction box within a watertight internal compartment. The or each connector electrically connects upper ends of the cables to each other.

The invention discloses an integral jacking construction method and system for a modular electromechanical pipeline of a large venue. The method comprises the following steps of S1, BIM modular design, S2, modular segmentation, S3, modular assembly and transportation, S4, integral jacking construction and S5, butt joint of a front module and a rear module. The system comprises a BIM (Building Information Modeling) design module, a modular segmentation measurement unit, modular assembly equipment, a special jacking equipment group and a forklift transportation assembly, according to the method, BIM modular design, modular segmentation and prefabricated assembly type production are combined, through jacking equipment and precision control technology innovation, high-place cross operation interference is avoided by means of overall jacking, and the construction time is shortened; bIM design optimization and jacking precision control are utilized, so that the quality problem is effectively reduced; the material utilization rate is improved through modularization and prefabrication, rework waste is reduced, and the labor cost and the material waste rate are effectively reduced; and in the aspect of construction safety, high-place operation is reduced through overall jacking, potential safety hazards are avoided, and comprehensive benefits of construction are effectively enhanced.

The utility model relates to a current cable trench protection structure in a soft soil area. The current cable trench protection structure comprises a current cable trench, a self-stabilizing filling body, a cover plate, a cover plate base and a buffer layer, the self-stabilizing filling bodies are arranged on the two sides of the current cable trench. The cover plate base is fixedly arranged at the top of the inner side of the self-stabilizing filling body; the cover plate is detachably mounted on the cover plate base; gaps are reserved between the current cable trench and the self-stabilizing filling bodies on the two sides, and buffer layers are arranged. According to the utility model, the current cable trench cover plate is prevented from receiving vertical vehicle load; lateral soil pressure on the side wall of the cable trench is avoided, the work amount of earth excavation is reduced, and the manufacturing cost is saved; long-term settlement is reduced, and the method is more suitable for soft soil areas; the cover plate and the self-stabilizing filling bodies on the two sides are prevented from sliding in the transverse direction due to vehicle running; local fracture of concrete at the edge of the cover plate is avoided; and lifting after prefabrication and uncovering maintenance during use are facilitated.

The invention relates to the technical field of attitude control, in particular to a pipe jacking machine attitude control method and system for municipal engineering construction, and the method comprises the steps: obtaining various monitoring data of a pipe jacking machine; the monitoring time is divided into a plurality of monitoring time periods, and each monitoring time period is divided into a plurality of time periods according to the stage difference of the posture change of the pipe jacking machine in each monitoring time period; acquiring a change response characteristic value of the single monitoring data in the single time period according to discrete characteristics of the single monitoring data in the single time period and related characteristics and difference characteristics of the single monitoring data and other various monitoring data; and according to the total data quantity and the change response characteristic value of the single monitoring data in each time period of the single monitoring time period, acquiring a moving time window parameter of the single monitoring data in the single monitoring time period, and further controlling the monitoring data in the attitude control process of the pipe jacking machine. And the moving time window lengths of different time periods are adaptively optimized, so that the accuracy of pipe jacking attitude control is improved.

The utility model discloses a high-strength aluminum alloy channel support, which belongs to the technical field of cable mounting and supporting, and is characterized in that the high-strength aluminum alloy channel support comprises a stand column and a supporting arm, and two parallel first channel structures are arranged on one side, close to the supporting arm, of the stand column; the stand column is in an embedded mode, so that the defects that in the prior art, stand columns are welded after a building is made or fixed in a mode of punching expansion bolts are overcome, and the problems that in an existing stand column installation mode, the workload is large, the building needs to be damaged sometimes, reinforcing steel bars of the building are touched when expansion bolt holes are drilled, and installation is difficult are solved. And potential safety hazards exist when electric welding is used in a limited space. Due to the adoption of the pre-embedded type, the stand column can be welded with the reinforcing steel bars through the T-shaped steel nails, so that the stand column and a building are integrated, the strength is higher, the anti-corrosion protection is added, the stand column is pre-embedded in the building, the protection performance is fully protected, and the adjustability of the interlayer distance of the corbel is very high due to the adoption of the channel structure.

The utility model provides a submarine cable armored structure anchoring device which comprises a protective sleeve, an armored structure is arranged in the protective sleeve, one end of the protective sleeve is sealed through a grouting cover plate, the other end of the protective sleeve is connected with an anti-bending pipe through a connecting flange, and through holes for a submarine cable to penetrate through are formed in the anti-bending pipe and the protective sleeve. The protective sleeve comprises two protective covers which are symmetrically arranged, one sides of the two protective covers are connected through a hinge, the other sides of the two protective covers are fixed through bolts, and the split type protective sleeve is adopted, so that installation, disassembly and maintenance are convenient; an anti-bending pipe is arranged, so that the submarine cable is prevented from being excessively bent under a relatively large bending moment, and the service life of the submarine cable is prolonged; the protective sleeve and the anti-bending pipe are connected through the connecting flange, so that the overall sealing performance is improved; and the epoxy binder is poured into the protective sleeve, so that the sealing performance of the submarine cable armoring anchoring device is enhanced, seawater is effectively prevented from entering the conical protective cover to corrode the first armoring steel wire layer and the second armoring steel wire layer, and the durability of the submarine cable is improved.

The invention relates to the technical field of submarine cable protection, in particular to a dynamic submarine cable limiting device and a dynamic submarine cable system.The dynamic submarine cable limiting device comprises a base arranged on a seabed; the two first clamps are fixedly connected with the dynamic submarine cable; the transition module is arranged on the dynamic submarine cable between the two first clamps in a sleeving manner; one ends of the two first mooring ropes are connected with the base, and the other ends of the two first mooring ropes are connected with the two first clamps respectively; wherein the transition module is used for limiting the bending radius of the dynamic submarine cable at the transition module to be not smaller than the preset minimum bending radius, the dynamic submarine cable limiting device can effectively control the bending radius of the submarine cable, and the situation that the submarine cable is damaged due to excessive bending is reduced or even avoided.

The utility model belongs to the technical field of cables, and provides a high-voltage cable support. The device comprises a stand column, a supporting rod and a rotating rod. The stand column is connected with the supporting rod. The rotating rod is arranged above the supporting rod; a semicircular groove is formed in the top of the supporting rod. According to the utility model, a cable is supported through the semicircular grooves on the supporting rods, and the cable is fixed through the rotating rods, so that the cable is prevented from being damaged due to shaking, and the cable is conveniently and rapidly installed and fixed.

The present invention relates to the technical field of underwater operation, and in particular to an underwater jet trenching and cable laying operation system and method. An underwater traveling device is provided at the lower end of a main unit body; two jetting arms are located at the front end of the main unit body; a jetting and suction device is provided at the rear end of the main unit body and comprises suction pipes and second jetting pipes; the suction pipes are used for suctioning silt in an ocean trench through suction ports before a cable settles to the bottom of the ocean trench, and discharging the silt to the outside of the ocean trench through discharge ports; and the second jetting pipes spray horizontal jet flow to scour the inner side wall and the bottom of the ocean trench in the length direction of the ocean trench, so as to maintain the trench profile of the ocean trench during settling of the cable to the bottom of the ocean trench. The present invention is suitable for hyper-soft seabed conditions, and in the case where a cable can only settle naturally due to its large bending radius, it can be ensured that the cable is laid to a target depth to satisfy the operation requirements.

A segmented bend restrictor system and method for installing such a segmented bend restrictor system that is configured to be disassembled at discrete locations to minimize unnecessary disassembly. The disclosed segmented bend restrictor system offers a more efficient disassembly operation, while also providing an easy and efficient installation operation.

The invention discloses a wire embedding device for water conservancy and hydropower engineering, and belongs to the technical field of medical auxiliary instruments, the wire embedding device for water conservancy and hydropower engineering comprises a device main body, the device main body comprises universal rollers, a winding roller, a cable main body, a wire embedding port and an adjusting mechanism arranged on the device main body; when a cable needed by water conservancy and hydropower engineering is laid and buried through the cable burying equipment, in order to improve the adjusting effect of the cable burying device on the cable conveying tension degree under different cable burying environments, a first servo motor can be started to drive a moving frame to slide along the inner wall of a fixing groove through rotation of a first threaded rod, and the cable burying equipment can be used for laying and burying the cable. And sliding of the moving frame drives the lifting rod to slide along the inner wall of the lifting groove through rotation of the rotating rod, meanwhile, the lifting frame is driven to conduct jacking movement through movement of the lifting rod, and the effect of conveniently adjusting the cable conveying tension degree on the surfaces of the first conveying roller and the second conveying roller is achieved.

To securely connect halved tubes to each other with a simple work even without any band for winding the halved tubes together and stably protect a cable.SOLUTION: Concave sides of a pair of halved tubes 2A and 2B are arranged to face each other to form a protective tube 1. Each of the halved tubes 2A and 2B includes a semi-cylindrical resin portion 4 and a cast iron portion 3 embedded in the resin portion 4 by insert molding. The cast iron portion 3 has an engagement portion for engaging the halved tubes 2A and 2B with each other. With this configuration, the pair of halved tubes 2A and 2B are connected to each other by the engagement portion consisting of the cast iron portion 3, and the presence of the cast iron portion 3 increases the specific gravity of the protective tube 1, which makes it easier for the protective tube 1 to sink to the bottom of the sea and makes the protective tube less susceptible to effects of tidal currents, etc. Therefore, the halved tubes 2A and 2B can be firmly connected to each other without any band, and the cable can be stably protected.SELECTED DRAWING: Figure 2

This invention discloses a submarine cable anti-scouring device and its construction method, applicable to the field of submarine cable protection technology. The invention includes a filter layer and a flexible protective layer. The filter layer comprises multiple filter pads arranged sequentially along the axial direction of the submarine cable on the surface of the cable and / or the seabed, with adjacent filter pads overlapping. The flexible protective layer comprises multiple flexible protective pads arranged sequentially along the axial direction of the cable on the filter layer. At least one flexible protective pad is provided at the overlap of any two adjacent filter pads to press the filter layer firmly against the surface of the cable and / or the seabed. This application, through the cooperation of the filter layer and the flexible protective layer, improves the stability of the submarine cable anti-scouring device to reduce inter-segment displacement and possesses adaptive capability to seabed subsidence deformation, effectively enhancing the anti-scouring effect of the submarine cable.

The invention relates to an underground natural gas supply and power transmission system comprising: - a pipeline (P) for natural gas supply, provided at various intervals with surge arrester devices and stray current drainage devices, - a first pair of HVDC cables (1.1, 1.2) for power transmission, arranged on a same side of the pipeline (P), wherein: - the pipeline (P) and the cables (1.1, 1.2) of the first pair of HVDC cables are parallel to each other and buried underground, the pipeline (P) at a depth (d) in the range of 1.0 m - 1.2 m and the cables (1.1, 1.2) at a depth (d1) in the range of 1.0 m – 1.8 m, - the cables (1.1, 1.2) of the first pair of HVDC cables are arranged, one in respect to the other, at a spacing (c1) in the range of 2 m - 4 m, - the cable (1.1) the nearest to the pipeline (P) is arranged in respect to the pipeline (P) at a distance (g1) in the range of 6 m – 16 m.

The application discloses a cable support for electrical construction and relates to the technical field of cable supports.The cable support comprises a support stand column, a horizontal supporting arm installed on the support stand column, a vertical supporting arm installed on the horizontal supporting arm and an electric telescopic rod arranged on the support stand column.The application places the placing arc plate above the upper area of the ground on both sides of the cable trench, and at this time, the cable can be installed on the flexible rolling wheels on the inner arc surface of the placing arc plate.The flexible rolling wheels can prevent the cable surface from being damaged by abrasion, can enable the cable to be laid at the ground level, can make the installation of the cable safer, can greatly improve the efficiency, can enable multiple cables to be arranged neatly above the ground at one time, can be lowered synchronously, can be arranged more regularly, can limit the radial shaking and twisting of the cables, can prevent the cables from being arched upward during the in-place lowering process and from swinging left and right and being twisted during the lowering process, and can make the cable center line coincide with the support installation reference.

The utility model discloses a splicing structure of a precast concrete cable trench, which comprises a concave plate, the concave plate wraps a splicing seam of two sections of precast concrete cable trenches, two inner walls and the inner bottom of the concave plate are provided with aluminum sheets, the aluminum sheets cover the splicing seam of the two sections of precast concrete cable trenches, and the concave plate is provided with a concave groove. And the aluminum sheets on the two sides in the concave plate are pressed on the aluminum sheet at the bottom. According to the splicing structure of the prefabricated concrete cable trench, the splicing position of two sections of prefabricated concrete cable trenches can be clamped, so that the two sections of prefabricated concrete cable trenches are horizontal and stable, and a splicing seam is shrunk and sealed.

An offshore wind energy system comprising a foundation having a first hollow structural element with a longitudinally extending, circumferential first wall. A cable bushing penetrates through the first wall and is arranged in the first wall. At least one cable guide arrangement extends in a radial direction and is arranged at an outer shell surface of the first wall of the first hollow structural element. The cable guide arrangement is configured to guide a submarine cable exiting the cable bushing from the cable bushing to a submarine bottom surface.