56results about "Cable-laying vessels" patented technology

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.

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 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.

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.

This invention provides a shallow-water navigation method that allows the vessel to easily approach the shore. [Solution] A method for navigating a barge 10, which comprises a hull 11 that can float on water and carry cargo, a propulsion device 12 for propelling the hull 11, and a ballast mechanism 13 for adjusting the inclination of the hull 11 with respect to the water surface Sf by changing the position or amount of ballast in the hull 11, into a shallow water area B1 connected to a shore Ld, the method comprising an inclination step S11 and a propulsion step S12. The inclination step S11 raises the shore Ld side of the hull 11 higher than the offshore side, which is the opposite side of the shore Ld, so that the hull 11 is inclined with respect to the water surface Sf. The propulsion step S12 propels the hull 11 toward the shore Ld while the hull 11 is inclined.

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 installation comprises a line recovery system (32), to lift the submarine line (11) out of a body of water and a radiation detection unit (13), to detect a ionizing radiation emitted from the submarine line (11). The line recovery system (32) defines a line circulation space (80) through which the submarine line (11) follows a linear path. The detection unit (13) comprises : - a stand (70) fixedly or adjustably mounted in the line recovery system (32), in the vicinity of the line circulation space (80); - a radioactivity detector (72), carried by the stand (70) and configured to detect a radioactivity level in the line circulation space (80) at successive measurement times; - a recording unit (74), connected to the radioactivity detector (72) to record the successive measurements of the radioactivity level at successive measurement times.

A cable laying vessel and method are provided for laying an underwater cable, the cable laying vessel including a floating hull with a bow, a stern and a deck. The hull has a forward shipping direction. The cable laying vessel further includes a cable handling installation that includes a cable chute at the stern, and a cable quadrant and a quadrant manipulator for the cable quadrant on the deck. The cable chute includes a convex curved bottom wall with a bottom wall apex where the bottom wall faces furthest away from the stern. The bottom wall continues as from the bottom wall apex downwards back towards the stern. The cable chute includes a left outer guide wall and a right outer guide wall that extend under an angle with the bottom wall and that flare away from each other in a downward direction.

A system includes: a tube coupled to a topside structure at a surface location, wherein the tube is an I-Tube or a J-Tube; a subsea umbilical extending from the surface location to an underwater location, wherein the subsea umbilical is supported by the tube and a portion of the subsea umbilical extends through the tube; a sensor disposed within an annulus between an inner wall of the tube and an outer surface of the subsea umbilical, the sensor configured to take sensor measurements from a location in the annulus; and a communication system communicatively coupled to the sensor and configured to transmit data indicative of the sensor measurements to a remote location.

The aim is to provide a vessel that can handle multiple applications with a single unit and allows for easy switching between equipment. [Solution] The vessel 1 can switch between and install a first cartridge 30A and a second cartridge 30B within a single hull 2. Therefore, one vessel 1 can handle multiple uses. Furthermore, the first cartridge 30A has a first device 31A used for the first use, and the second cartridge 30B has a second device 31B used for the second use. Therefore, by simply switching cartridges on the hull 2, the equipment can be easily changed according to the use. As described above, one vessel can handle multiple uses, and equipment can be easily switched.