74results about "Cable-laying vessels" patented technology

A submarine cable laying vessel comprises: a vessel body; the cable cabin is arranged in the ship body, a plurality of cable trays are arranged in the cable cabin, and the cable trays are used for providing submarine cables; the cable distribution car room is arranged in the ship body, a cable distribution operation line is arranged in the cable distribution car room, and the cable distribution operation line is used for conveying submarine cables provided by the cable reel to the tail of the ship body; and the submarine cable water entry device is arranged at the tail part of the ship body and is used for guiding the submarine cable conveyed by the cable laying operation line to enter water. By adopting the structure, the cable cabin is arranged in the ship body, so that the gravity center of the ship can be lowered, the stability of the ship is guaranteed, and the working space and the storage area of the main deck of the ship body are released. The cable laying vehicle room is arranged in the ship body, so that the cable laying operation line can be located in a closed space to perform operation on submarine cables. Therefore, the stability and controllability of the working environment can be improved, the influence of the external environment on the cable distribution cars is reduced, and the working efficiency is improved.

A cable handling bow (2) for an overboarding system of a work platform is proposed, wherein the cable handling bow (2) comprises a cable retaining structure (4) for retaining a length of a cable, wherein the cable retaining structure (4) extends along a partially curved path (6), which path (6) has a first end (8) and an opposed second end (10), wherein the path (6) has a first straight segment (14) located between the first end (8) and the second end (10) and being spaced away from both ends (8, 10), such that a cable joint connecting two ends of a cable is placeable in the first straight segment (14), when the cable length is retained in the cable retaining structure (4).

The invention relates to a control method of an unpowered tugboat and an anchoring boat for submarine optical cable laying and a related device, and the method comprises the following steps: carrying out the real-time data collection and fusion updating of the state information of the tugboat and the anchoring boat, so as to output a current state estimation value; calculating the offset between the current position of the tugboat and a preset optical cable path based on the current state estimation value, and calculating the correction direction of the attitude of the tugboat; dynamically calculating and selecting a main control anchor point for attitude control according to the correction direction of the attitude and the current anchoring state of the tugboat; controlling the retracting and releasing speed of an anchor winch based on the selected main control anchor point so as to correct the posture of the tugboat in real time; and according to the tugboat state estimation value and the anchor point control result, tension closed-loop adjustment of the cable laying winch is carried out to ensure that the cable laying tension is stable. According to the invention, cooperative control between the unpowered tugboat and the anchoring boat can be realized, and the intelligence and continuity of overall control are improved, so that the stability of optical cable laying operation is guaranteed.

An object of the present disclosure is to enable collection of information indicating a state of an underwater structure, and thereby improve the efficiency and reliability of an above-water system including above-water and underwater structures connected to each other. The present disclosure is a control system configured to: collect a strain distribution of an underwater structure connected to an above-water structure; and control at least one of the underwater structure and the above-water structure in accordance with the strain distribution.

The water conservancy and hydropower engineering cable laying floating body platform comprises a floating block, a side connecting table is fixedly arranged on the front side of the floating block, at least three electric propellers are evenly distributed on the lower portion of the floating block around the circumference, a plurality of U-shaped inserting structures are arranged on the side connecting table, the two ends of each U-shaped inserting structure are arranged up and down, and openings of the U-shaped inserting structures face the direction away from the floating block. The portion, close to the floating block, of the lower portion of the U-shaped inserting structure is rotationally connected with an overturning frame capable of overturning up and down, the end, away from the floating block, of the overturning frame abuts against a hooking block, a telescopic rod of an electric push rod is arranged on the hooking block, and the end, away from the telescopic rod, of the electric push rod is arranged on a distribution box at the upper end of the floating block. A bracket is arranged on the portion, located on the front side of the rotating connection position with the overturning frame, of the lower portion of the U-shaped inserting structure, an upward-pushing air bag is arranged on the bracket and communicated with an auxiliary air bag at the front end of the lower portion of the U-shaped inserting structure through an air distribution pipe, and the auxiliary air bag and the upward-pushing air bag can be inflated and expanded by controlling an inflation pump through a controller in the distribution box.

A main body structure of a submarine stratum space cable laying robot includes one telescopic electric linear actuator unit including two dustproof sleeves with one sleeved on the other, and four single supporting arm units for forward motion and supporting. Two ends of each single supporting arm unit are sequentially provided with rotating supporting plates, reducers, motors and connecting flanges from inside to outside, and an outside of each single supporting arm unit is provided with a rotating plate structure. The single supporting arm units in each group are movably connected by the adjacent ends and movably connected to connectors of the telescopic electric linear actuator unit by respective outer ends thereof. The two groups of single supporting arm units connected in series are symmetrically arranged, such that a whole main body structure of the robot is diamond-shaped.

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.

A cable reel configured to spool a subsea cable end (2) and supported fitting (4) onto the cable reel (6) is disclosed. The cable reel (6) comprises a first engagement means (110), said first engagement means (110) being complementary to a second engagement means (120), on the subsea cable end (2) or on the fitting (4) or on both. An assembly and a method of spooling a subsea cable end (2) and supported fitting (4) onto a cable reel (6) are also disclosed. The method comprises providing a first engagement means (110) on the cable reel (6); providing a second engagement means (120), being complementary with the first engagement means (110), on the subsea cable end (2) or on the fitting (4) or on both; and rotating the cable reel to automatically engage the first engagement means (110) and the second engagement means (120) to spool the subsea cable end (2) and fitting (4) onto the cable reel (6).

The invention provides an elongated flexible article loading device, a carousel, and a vessel, and methods of using the same. The elongated flexible article loading device includes an extension arm including an arcuate section extending along an arcuate section arc between an arcuate section working end and an arcuate section carousel end, the arcuate segment arc has an arcuate segment arc center point, an arcuate segment arc radius equal to or greater than a minimum bending radius of the elongate flexible article, an arcuate segment arc plane including the arcuate segment arc, an arcuate segment arc axis including the arcuate segment arc center point and transverse to, preferably perpendicular to, the arcuate segment arc plane, characterized in that the extension arm is configured to be mounted in the elongate flexible article loading device in a manner movable between a retracted position and an extended position, and the arcuate section arc is configured to rotate about an arcuate section arc axis when the extension arm is moved between the retracted position and the extended position.

The application discloses a kind of submarine cable and its protection device integration operation equipment and operation method, it is related to marine engineering technical field.The equipment is based on the platform of track-laying vehicle, integrates anti-scour system, protection device installation system and identification and control system, collaborates with work ship to complete submarine cable anti-scour grouting and the automatic installation maintenance of protection component.Anti-scour system realizes in-situ grouting reinforcement by environmental protection type mud formula, protection device installation system can efficiently replace bending limiter and other components, identification and control system ensure accurate positioning and intelligent operation.The application solves the problem that traditional operation relies on diver, low efficiency, high safety risk, has high adaptability, intelligent and green environmental protection characteristics, significantly improves the reliability and operation efficiency of submarine cable engineering, and has wide application prospect.

The utility model discloses a cable laying ship submarine cable laying slideway coulter, which comprises a slideway coulter body, a mounting frame, a plough disc and a support, the support is mounted on the slideway coulter body, the mounting frame is fixed on one side of the support, and the mounting frame and the support are of an integrated structure and are both used for being mounted at positions corresponding to the slideway coulter body. The scraping blades I and the scraping blades II are arranged at the inner top and the inner rear side surface of the plough blade at equal intervals and are not in contact with the rotating shaft and the desilting scrapers connected to the rotating shaft; by arranging a mud removing scraper, impurities such as sand and soil which impact the plough blade at the seabed when the device operates can be cleaned, and the impurities such as the sand and the soil can drive the mud removing scraper connected through a rotating shaft to rotate; and therefore, in cooperation with the arrangement of a scraping blade I and a scraping blade II, the gravels, the soil and other substances are treated, and the installation efficiency of submarine cable laying is improved.

The invention relates to the field of submarine cable construction, and particularly discloses a high-precision submarine cable laying method and a submarine cable laying device.The high-precision submarine cable laying method comprises the steps that S1, an air route is input, and submarine cable laying air route information is input on a construction ship; s2, a calibration object is put, the calibration object is hoisted into the sea through a hoisting device on the construction ship, the calibration object is a sinking weight, and the calibration object vertically falls into the sea from the construction ship under the action of gravity; s3, submarine cables are laid, the workboat sails along the information input by the system, and the submarine cables are gradually laid to the seabed after passing through the calibration object; and S4, ending: after the submarine cable is laid to a final position, continuing to lay the submarine cable according to a designed route or cutting off the submarine cable according to requirements and putting the submarine cable into the seabed. According to the invention, the calibration object is thrown and is vertically suspended at the seabed position, when the submarine cable passes through the calibration object and is laid at the seabed, the position of the submarine cable is relatively stable, and the laying precision of the submarine cable can be effectively improved.

The application relates to the technical field of submarine cable construction, and discloses a conveying and guiding device for submarine cable laying construction, which comprises a rope placing pool located above a laying ship deck and internally containing a submarine cable, the bottom surface of the laying ship deck is fixedly connected with a cable releasing motor, the output shaft of the cable releasing motor penetrates through the laying ship deck and is fixedly connected with a No. 6 gear, the end of the rope placing pool close to the laying ship deck is fixedly connected with a No. 5 gear meshing with the No. 6 gear, the upper surface of the laying ship deck is fixedly connected with a supporting seat located at the middle part of the rope placing pool, the No. 5 gear is sleeved and rotationally connected outside the lower end of the supporting seat, and the upper end of the supporting seat is rotationally connected with a No. 1 corner wheel. The conveying and guiding device for submarine cable laying construction can detect the submarine bottom protrusions or depressions in advance through a single-beam depth finder, can adjust the submarine cable releasing angle in real time through the angle changing mechanism driven by the tilting motor, can avoid the bending and suspension of the submarine cable caused by the path mutation, and can improve the laying precision and reduce the risk of the ditching machine overturning.

An apparatus (40) for mounting a bouyancy aid (10) on an elongate line (84), the buoyancy aid (10) having an upper portion (12b) and a lower portion (12a) which are separable to enable the buoyancy aid (10) to be mounted on the elongate line (84), the apparatus (40) comprising a movable frame (42) on which is mounted a support cradle (44) and a opening arrangement (46), the opening arrangement (46) having a gripper (48) which is operable to grip an upper portion (12b) of a buoyancy aid (10) placed on the support cradle (44), the apparatus (40) further comprising a drive system which is operable to move the frame (42) between a loading position in which a buoyancy aid (10) may be placed on the support cradle (44) and an installation position, and also to move the opening arrangement (46) and / or the support cradle (44) relative to the frame (42) in such a way that when the gripper (48) is gripping the upper portion (12b) of a buoyancy aid (10) placed on the support cradle (44), the upper portion (12b) separates from the lower portion (12a).

The invention provides an ultrahigh-pressure submarine cable accessory mounting platform ship attitude compensation device which is characterized in that a mounting platform is arranged on a ship body, the ship body is provided with a main control module, and the ship body is provided with a first distance measuring sensor and a first angular velocity sensor which are used for detecting the distance between the ship body and the sea surface and the first inclination angle of the ship body relative to the horizontal plane respectively; a plurality of first driving mechanisms and second driving mechanisms of the mounting platform are arranged on a ship body, the first driving mechanisms are connected with a positioning frame, the second driving mechanisms are connected with an operation panel, a stabilizer is connected with the operation panel and the positioning frame, and a second distance measuring sensor and a second angular velocity sensor are arranged on the operation panel. The first detector is used for detecting the distance between the operation panel and the ship body and a second inclination angle of the operation panel relative to the horizontal plane; the main control module is in communication connection with the control unit so as to perform coarse adjustment and fine adjustment on the operation panel through cooperation of the first inclination angle and the second inclination angle and the control unit. The operation stability of the installation platform can be improved.

The invention relates to the technical field of submarine cable laying, in particular to an unmanned conveying underwater robot applied to submarine cable laying, which comprises a main machine body internally provided with a robot body. According to the unmanned conveying underwater robot applied to submarine cable laying, overturning can be automatically adjusted according to the angle of the main machine body by adopting the backpack type electric control overturning flow guide cover, so that the running stability of the robot in a water body is guaranteed, and the unmanned conveying underwater robot can be suitable for submarine cables in different states; an electric control overturning adjusting arm used for installing an electric control type driving impeller is movably assembled in the electric control overturning flow guide cover, storage can be facilitated through inward and outward overturning, the occupied space of an external structure in idle time is reduced, and storage and transportation are greatly facilitated; the robot can be controlled to be externally hung on the outer side of the submarine cable through electric control type lateral assembly housings on the outer walls of the two sides of the main machine body, the submarine cable can be conveniently controlled, and the stability of the robot in the conveying and adjusting process is improved.

The invention relates to the technical field of submarine cable construction, and discloses a conveying guide device for submarine cable laying construction, which comprises a rope placing pool which is positioned above a laying ship deck and is internally provided with a submarine cable, the bottom surface of the laying ship deck is fixedly connected with a cable laying motor, and an output shaft of the cable laying motor penetrates through the laying ship deck and is fixedly connected with a sixth gear; the end, close to the laying ship deck, of the rope containing pool is fixedly connected with a fifth gear meshed with the sixth gear, the upper surface of the laying ship deck is fixedly connected with a supporting base located in the middle of the rope containing pool, the fifth gear sleeves and is rotationally connected to the outer portion of the lower end of the supporting base, and the upper end of the supporting base is rotationally connected with a first corner wheel. According to the conveying guide device for submarine cable laying construction, the single-beam depth finder is used for detecting protrusions or recesses of the seabed in advance, the angle change mechanism driven by the inclined motor is matched, the submarine cable release angle can be adjusted in real time, the submarine cable is prevented from being bent and suspended due to sudden change of the path, the laying precision is improved, and the rollover risk of a trencher is reduced.

The object is to provide an installation method with improved workability. [Solution] The system comprises a mooring step S1 for mooring the ship, and an installation step S4 for installing and fixing a cable laying unit used for cable laying to the ship moored in the mooring step S1, and the cable laying unit is removable from the ship.

A protection cage (2) for handling a fitting (4) on a subsea cable (6), the subsea cable (6) extending along an axis. The protection cage having a frame (8, 10, 12), the frame being able to be opened and closed to surround the fitting. The protection cage is configured to support the fitting therewithin, and is configured to allow rotation of the fitting (4) and cable (6) around the axis. A power cable comprising a fitting (4) and such a protection cage (2), wherein the protection cage (2) is surrounding and supporting the fitting (4). A protection assembly (40) comprising the protection cage (2) and a deck-support (42), the deck-support being moveable.

The utility model discloses a cable unwinding and laying ship for water photovoltaic power station, including ship body, the bow position of ship body is equipped with power device, the central position of ship body is equipped with pay -off platform for fixed cable pay -off reel, the stern platform side position of ship body is equipped with cable conveyor and cable lifting device, the cable lifting device includes gantry that installs on the stern platform, the cable trolley is swinged to have on the gantry, the cable pay -off reel is around and is equipped with cable line, one end of cable line can move to the stern direction through cable conveyor and cable trolley, the utility model discloses a cable unwinding and laying ship structure firm, unwinds and lays cable and uses the positioning anchor rod to stabilize the ship body, and when unwinding and laying construction, cable is hauled by cable conveyor, has the characteristics such as simple structure, strong water area adaptability, saves manual work, is convenient for operation, and convenient operation.

The utility model relates to the technical field of underwater cable laying robots, in particular to a chain cutter type deep sea cable laying robot which comprises a main body machine and walking assemblies connected to the two sides of the main body machine in the Y direction and further comprises at least one chain cutter device and a cable holding and pressing protection device arranged in the Y direction, one end of the chain cutter device is connected to the side face of the lower portion of the main body machine, and the other end of the chain cutter device is arranged in the X direction. One end of the holding and pressing cable protection device is connected to the middle of the main body machine, the other end of the holding and pressing cable protection device extends downwards in the Z direction, and a cable is clamped or laid and pressed at the end of the holding and pressing cable protection device. By arranging the holding and pressing cable protection device, cable damage caused by construction is avoided on the premise of guaranteeing high efficiency of underwater sea ditch digging, and the cable laying device has the advantages of being high in cable laying efficiency, high in safety and small in cable damage.

This invention provides a carousel (301) for storing a subsea cable with a subsea cable minimum bending radius and a subsea cable diameter, comprising a carousel hub (201), wherein the carousel hub comprises a workroom (202), characterized in that the carousel hub further comprises a carousel hub shell (101) encircling the workroom, the carousel hub shell comprises a perforation (106) configured for allowing the subsea cable to intersect with the carousel hub shell into the workroom, the perforation comprises an intersection bending guide (107) configured for bending the subsea cable according to an intersection bending radius (s) when the subsea cable intersects the carousel hub shell through the perforation, the intersection bending radius is greater than or equal to the subsea cable minimum bending radius. It further provides a ship for laying a subsea cable, and a use of a carousel according to this invention or a ship according to this invention.

A method of moving a subsea cable end (2) and supported fitting (4) on a vessel deck (30) between an onboarding position and an on-board cable-holding position. The method comprises locating the subsea cable end (2) with a protection cage (40) on a deck-support (20); and moving the protection cage (40) and deck-support (20) around the vessel deck (30) to the on-board cable-holding position.

The invention discloses integrated operation equipment and an operation method of a submarine cable and a protection device thereof, and relates to the technical field of ocean engineering. According to the equipment, a crawler serves as a basic platform, an anti-scouring system, a protection device installation system and an identification and control system are integrated, and submarine cable anti-scouring grouting and automatic installation and maintenance of protection components are completed in cooperation with a workboat. The anti-scouring system achieves in-situ grouting reinforcement through an environment-friendly slurry formula, the protection device installation system can efficiently replace components such as a bending limiter, and the recognition and control system ensures accurate positioning and intelligent operation. The problems that traditional operation depends on divers, efficiency is low and safety risks are high are solved, the method has the advantages of being high in adaptability, intelligent and environmentally friendly, reliability and operation and maintenance efficiency of submarine cable engineering are remarkably improved, and the method has wide application prospects.

A work platform (10) for performing a cable operation on a cable on a vessel having a vessel deck (7) has chutes (19a, 19b) for guiding the cable from the sea and onto the work platform (10), an overboarding system (18) and a number of modules (11, 12, 13, 14, 15). Each module (11, 12, 13, 14, 15) has a deck section and a support structure for supporting the deck section at a distance above the vessel deck (7). Each module (11, 12, 13, 14, 15) is configured to be lifted separately onto and away from the vessel deck (7). The deck sections of the modules together form a mezzanine deck on which the cable operation is performed. The overboarding system (18) is secured to the mezzanine deck. At least some of the equipment for performing the cable operation is stored below the mezzanine deck.

A method of handling a power cable 10 on a vessel 18 comprises pulling an end part 12 of the power cable onto the vessel from a first area 20, next to a first side 30 of the vessel and guiding the end

The invention relates to the technical field of submarine cable maintenance, and discloses an offshore wind power branch cable maintenance construction method which comprises the following steps: establishing a digital twinborn map of a construction sea area to formulate an overall recovery scheme of a fault submarine cable; a single intermediate joint and bending limiters at the two ends of the single intermediate joint are arranged at the fault point position of the submarine cable to generate a collaborative operation instruction set corresponding to the fault submarine cable; based on the collaborative operation instruction set and the digital twin map, a new cable laying path of the construction sea area is planned, and a new cable anchoring mode is set; and in combination with the overall recovery scheme, the collaborative operation instruction set, the new cable laying path and the new cable anchoring mode, submarine cable maintenance processing of the construction sea area is executed, and a submarine cable maintenance result is obtained. The submarine cable repairing operation time can be saved, and the submarine cable repairing efficiency is improved.

The invention discloses an ocean pipe cable laying ship, and belongs to the technical field of submarine cable laying ships, the ocean pipe cable laying ship comprises a ship body, a winding mechanism is installed in the center of the top of the ship body, and a limiting mechanism is installed at the front end of the top of the ship body; an adjusting mechanism is installed on the side, close to the limiting mechanism, of the front end of the top of the ship body, and a guide frame is fixedly connected to the side, close to the winding mechanism, of the center of the top of the ship body. A first supporting plate is fixedly connected to one side of the top of the ship body, and a second supporting plate is fixedly connected to the position, close to the rear end of the first supporting plate, of the top of the ship body. According to the submarine cable winding device, by designing the winding mechanism and the limiting mechanism, a submarine cable can be automatically wound, the outer wall of the submarine cable can be automatically propped through the two pulleys, the submarine cable can be conveniently and automatically wound, the winding quality is improved, the submarine cable is wound in order, and subsequent laying is facilitated.

The invention relates to a water area high-density electrical method integrated cable towing system and a collection method thereof, and the system comprises a mother ship winch unit which is used for controlling a winch to collect and release a measurement cable and can guarantee that the measurement cable completely enters water; the cable laying unmanned ship comprises an unmanned ship cable-ship linkage mechanism which is used for being connected with the end portion of a measurement cable, can adjust the depth of the measurement cable in water and carries a GNSS-RTK positioning module and a communication module. An integrated high-density electrical method cable collects potential difference and current data under different electrode combinations by arranging a multi-electrode array. Through cooperative work of the mother ship winch unit, the cable laying unmanned ship and the integrated high-density electrical method cable, automatic laying, stable cable dragging and efficient recycling of the electrode cable in the water area environment are achieved, and the prominent problems of low efficiency, poor safety, insufficient cable measuring precision and the like in traditional water area high-density electrical method operation are fundamentally solved; and the method has obvious engineering application value and popularization prospect.