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168 results about "Lightering" patented technology

Lightering (also called lighterage) is the process of transferring cargo between vessels of different sizes, usually between a barge and a bulker or oil tanker. Lightering is undertaken to reduce a vessel's draft in order to enter port facilities which cannot accept very large ocean-going vessels. Lightering can also refer to the use of a lighter barge for any form of short-distance transport, such as to bring railroad cars across a river. In addition, lightering can refer to the process of removing oil or other hazardous chemicals from a compromised vessel to another vessel to prevent oil from spilling into the surrounding waters.

Offshore photovoltaic support loading and unloading type shipping stacking and splicing tool and lightering operation method of offshore photovoltaic support loading and unloading type shipping stacking and splicing tool

The invention discloses an offshore photovoltaic support loading and unloading type shipping and stacking tool and a lightering operation method thereof. The tool comprises a barge widening and reinforcing tool, a photovoltaic support mounting tool and a stacking tool. The barge widening and reinforcing tool is composed of a plurality of sets of extending mechanisms which are symmetrically arranged on ship boards on the left side and the right side of a barge, and each set of extending mechanism is composed of a plurality of extending assemblies. The photovoltaic support installation tool comprises a plurality of sets of guide assemblies composed of a plurality of guide pipes, the guide assemblies are distributed on the extension assembly and the deck, and supporting legs are further arranged at the centers of the guide pipes. The stacking tool is composed of a plurality of stacking assemblies, each stacking assembly is composed of a plurality of stacking supports, the top sides of the stacking supports are provided with support guide pipes and support supporting legs which are the same as and correspond to the guide pipes and the supporting legs respectively, and the bottom sides of the stacking supports are connected with the guide assemblies. The tool is simple in structural design and convenient to assemble, disassemble and operate, stacking arrangement and fixation of the offshore photovoltaic support in the height direction of the barge can be achieved, the transportation efficiency is improved in the lightering operation, and the cost is reduced.
Owner:HEBEI HUADIAN GUYUAN WIND POWER CO LTD +1

Joint simulation method for structural collision effect in floating installation process of offshore converter station

The invention belongs to the technical field of ocean information engineering, and discloses a joint simulation method for a structure collision effect in a floating installation process of an offshore converter station. The joint simulation method comprises the following steps: S1, setting sea condition parameters of an operation sea area and geometric parameters and material parameters of a floating system; s2, initializing a hydrodynamic model and a multi-body model; s3, solving the barge motion equation under the current time step by using the hydrodynamic model to obtain barge motion data; s4, calculating an LMU contact force and a DSU contact force under the current time step according to the barge motion data in the step S3, feeding back the LMU contact force and the DSU contact force to the hydrodynamic model, and updating the external load of the barge; and S5, repeating the steps S3-S4 until simulation in the set time step is completed, and then outputting a simulation result. According to the method, precise calculation of dynamic movement of the floating body and precise simulation of complex contact-nonlinear restoring force of the LMU can be considered, and high-precision simulation analysis of the whole floating installation process of the offshore converter station is achieved.
Owner:OCEAN UNIV OF CHINA

Construction device and method for installing bridge superstructure through modular barge combined automatic jacking system

The invention belongs to the technical field of bridge superstructure installation and construction, and particularly relates to a construction device and method for installing a bridge superstructure through a modular barge combined automatic jacking system. Firstly, the operation platform is formed by splicing the modular barges, then the automatic jacking system and the steel platform are installed on the operation platform, the steel platform is used for loading and supporting a to-be-installed beam section on a beam section splicing and transferring wharf, the modular barges are driven by tugs to combine the automatic jacking system and the to-be-installed beam section to move to a designed erection position, and the beam section is assembled and transported. And the to-be-installed beam section is erected on the beam bottom support through the positioning piles and the anchor mooring system, and installation of the bridge superstructure is completed. The method is simple in installation and construction, and can effectively improve the installation and construction effect of the bridge superstructure. In the installation and construction process of the bridge superstructure, the modular barges are connected into a whole through the multiple sets of cross beams, the influences of water flow and waves can be effectively reduced, and the stability of the modular barges is improved. The device is simple in structure, reasonable in design, convenient to use and operate and good in using effect.
Owner:CCCC SECOND HIGHWAY ENG CO LTD

Intelligent combined fleet cooperative stability control method and system

The invention provides an intelligent combined fleet cooperative stability control method and system, and relates to the technical field of shipping transportation, and the method comprises the steps: 1, deploying a pressure sensor at the installation position of a mechanical-hydraulic lock catch, deploying a deformation sensor at a barge deck, deploying attitude sensors at the bow and stern of a ship, and deploying an attitude sensor at the installation position of a mechanical-hydraulic lock catch; collecting lock catch hydraulic pressure value, barge structure deformation quantity and ship pitch angle data in real time; and 2, the hydraulic pressure value, the structural deformation quantity and the ship pitch angle data are used for generating a ship state parameter set according to each barge and the associated lock catch, and the ship state parameter set comprises the lock catch stress peak value, the barge load distribution gradient and the pitch angle offset. Through real-time sensing, dynamic adjustment and cooperative control, the cooperative stability of the combined fleet under the complex sea condition is effectively improved, and the dynamic instability risk of the connection structure is reduced.
Owner:TIMES TIANHAI (XIAMEN) INTELLIGENT TECH CO LTD

A marine steel pipe pile transportation tool

The utility model discloses a marine steel pipe pile transport frock, including two frock stand columns, multiple pairs of layer branch leg, bottom layer support pad and multiple high layer support pads, bottom layer support pad is the horizontal strip beam body of setting, and its top surface has multiple arc through grooves along its length direction equidistance and is set up, two frock stand columns are fixed at the both ends of bottom layer support pad, multiple pairs of layer branch leg are set up on the opposite side wall of two frock stand columns from bottom to top interval, and multiple high layer support pads are set up on multiple pairs of layer branch leg respectively, every high layer support pad includes a horizontal strip beam body, and its top surface and bottom surface have multiple arc through grooves along its length direction equidistance and are set up respectively, and the both ends of beam body are equipped with the connecting lug board connected with a pair of layer branch leg, this marine steel pipe pile transport frock can realize the layering of batch steel pipe pile on barge, not only good integrity and stability, and be applicable to different diameter or the steel pipe pile of variable diameter, and the barge operation efficiency is high, and the cost is low.
Owner:天津港航工程有限公司

Bridge anti-ship collision device impact force-impact depth model construction method

ActiveCN121328209BEnsure safe operation and maintenanceAccurately obtain the impact force-impact depth curveGeometric CADDesign optimisation/simulationEnergy absorptionStrain energy
The embodiment of the application discloses a bridge anti-ship collision device impact force-impact depth model construction method, comprising the following steps: determining the total potential energy of the system in the process of the barge impacting the anti-collision device, wherein the total potential energy comprises the plastic strain energy of the outer panel of the anti-collision device, the compression energy consumption of the internal structure of the anti-collision device, the energy absorption of the bow of the barge and the work of the external impact force; each item in the total potential energy is expressed as a function of the impact force and / or the impact depth of the anti-collision device; each function is substituted into the minimum potential energy principle equation satisfied by the total potential energy, and an impact force-impact depth model for representing the relationship between the impact force and the impact depth of the anti-collision device is obtained. The embodiment can establish a clear mechanism model for the dynamic response of the anti-collision device under the ship collision.
Owner:SOUTHWEST JIAOTONG UNIV

A method for floating and launching installation of a sea bridge section based on SPMT

The application discloses a kind of offshore bridge section float installation method based on SPMT, the installation method includes the following steps: S1: barge carries bridge section and SPMT reaches the front of installation pier, by dinghy, mooring rope is fixed on pier;S2: barge gradually tightens mooring rope, tail is aimed at the gap between pier;S3: barge winch tail is pulled into the gap between pier, ensure that the tail installation area is enough to accommodate bridge section and SPMT and is fixed using fender and float ball;S4: before installation, remove the bridge section binding, SPMT enters the bridge section below and lifts the bridge section from temporary support, is transported to tail, and is positioned by translation rotation etc. Action carries out bridge section installation position rough positioning.The present application uses SPMT to transport and install bridge section in position, which can achieve millimeter-level fine adjustment, has higher installation precision, reduces the impact of wave impact on barge, ensures the horizontal state of goods when barge is inclined, and reduces the time cost loss caused by bad weather.
Owner:CHINA SHIPPING- VASTWIN ENG & LOGISTICS

A method for floating deployment of cylindrical components

This application provides a method for the floating deployment of a cylindrical component. First, the cylindrical component is loaded onto a semi-submersible barge, and a buoyancy device is installed on the inner side of the component. After the semi-submersible barge submerges until the bottom surface of the buoyancy device contacts the liquid surface, the air intake and exhaust pipes of the buoyancy device are opened. When the cylindrical component sinks to a preset water depth, air is pumped into the stabilization chamber through the air intake and exhaust pipes until the buoyancy device can float in the water, and then the air intake and exhaust pipes are closed. The buoyancy device is then adjusted to be coaxial with the cylindrical component; air is pumped into the stabilization chamber a second time through the air intake and exhaust pipes until the buoyancy of the buoyancy device is sufficient to lift the cylindrical component and suspend it in the water, causing it to automatically separate from the semi-submersible barge. The cylindrical component can then be towed out of the dock to the deployment position. After the gas pumped into the stabilization chamber is expelled, the cylindrical component begins to sink. After adjusting the verticality of the cylindrical component, it is finally sunk to the bottom of the substrate.
Owner:SOUTHERN BRANCH OF CHINA COMM CONSTR CO LTD

Marine lifting apparatus

A catamaran lifting apparatus is disclosed for lifting objects in a marine environment. The apparatus includes first and second vessels that are spaced apart during use. A first frame spans between the vessels. A second frame spans between the vessels. The frames are spaced apart and connected to the vessels in a configuration that spaces the vessels apart. The first frame connects to the first vessel with a universal joint and to the second vessel with a hinged connection. The second frame connects to the second vessel with a universal joint and to the first vessel with a hinged or pinned connection. Each of the frames extends upwardly in an inverted u-shape, providing a space under the frame and in between the barges that enables a marine vessel to be positioned in between the barges and under the frames.
Owner:GATORFUR LLC

A quick loading and unloading cargo hold of a transfer barge and a control method thereof

This application relates to a cargo hold and its control method for rapid loading and unloading of cargo on a transshipment barge, belonging to the field of marine technology. It includes a W-shaped cargo hold with two symmetrical unloading ports along the bow and stern lines of the barge at its bottom, each port equipped with an adjustable-opening hatch assembly; and a cargo distribution detection module installed inside the cargo hold to acquire surface area information of the cargo stack within the hold, calculate the center of gravity position of the hold based on this information, and calculate the opening degree distribution of the unloading ports at the bottom of the hold based on the center of gravity position information; and a controller whose data input terminal is connected to the data output terminal of the cargo distribution detection module, and whose signal output terminal is connected to the signal input terminals of several hatch assemblies, for receiving the opening degree distribution results and adjusting the opening degree of the unloading ports at the bottom of the hold. This application ensures the stability of the barge during the unloading process.
Owner:COSCO ZHOUSHAN SHIPYARD

Method of constructing monopile foundation

To provide a construction method of a monopile type foundation capable of constructing the monopile type foundation constituting a large-sized monopile type offshore wind power generation facility without using a corresponding large-sized self-elevating barge or self-navigating work barge.SOLUTION: A self-elevating barge 40 is stopped in a water area, and a transporting barge 20 loaded with a monopile 3 is moored in the water area. A lower part of the monopile 3 laid down sideways is supported by an erecting device 30 mounted on a carrying barge 20, and a crane 43 of a self-elevating barge 40 and the erecting device 30 are used to submerge and erect a lower end part side 3b of the monopile 3. A monopile 3 erected in a water area is moved to a pile guide part 51 of a driving auxiliary device 50 mounted on a self-elevating barge 40 by a crane 43. The monopile 3 is driven into the water bottom ground SB using the crane 43 and the driving device 45 in a state in which horizontal movement of the monopile 3 is restrained by the pile guide part 51.SELECTED DRAWING: Figure 14
Owner:TOA KENSETSU KK

Systems and methods for utilizing nuclear-based marine craft to generate electricity for external or grid usage

ActiveUS12420895B2Power plants using nuclear energyCargo handling apparatusNuclear reactorNuclear power
Systems and methods for utilizing nuclear-based marine craft to generate electricity for external or grid usage are disclosed. In accordance with some embodiments, the system may include a nuclear-based marine craft having a propeller shaft and an electrical generator coupled external to the marine craft and configured to transmit generated electricity. In accordance with some other embodiments, the system may include a nuclear-based marine craft having a nuclear reactor and a turbine, a dock or barge having its own turbine and electrical generator, a steam outlet pipe connecting the nuclear reactor to the dock or barge turbine, and a steam inlet pipe connecting the dock or barge turbine back to the nuclear reactor, whereby heated steam from the nuclear reactor spins the dock or barge turbine, which then powers the electrical generator on the dock or barge to generates electricity.
Owner:QUADRANT CLEAN TECH LTD

A deck support arrangement for shallow water platform module float-over installation

A deck support device for shallow water platform module float-over installation, comprising a slide, a slide shoe, a buffer assembly, a support assembly and a diagonal brace, etc. The support assembly is a split structure, which is connected by electromagnetic suction cups and inserts. The top of the buffer assembly can be connected with the inserts. The load of the platform module is transmitted to the barge through the double-cone contact surface of the support assembly and the buffer assembly. This design can provide higher stability during the operation process. The buffer assembly further provides necessary buffering during the load transfer process of the platform module, avoiding rigid collision. During the float-over installation barge withdrawal process, the platform module can be quickly separated through the split structure of the support assembly. Meanwhile, the gap between the barge and the platform module is increased after the separation of the insert of the support assembly, ensuring the safe withdrawal of the float-over barge and greatly shortening the offshore operation time.
Owner:PETROCHINA CO LTD

An efficient transport barge for inland river material transfer

The application discloses an efficient transport barge for inland river material transfer, relates to the field of logistics transfer equipment, and comprises a ship body, a load carrying mechanism for carrying goods is locked to the ship body, a docking mechanism for receiving the load carrying mechanism is arranged on a target wharf of the ship body, the docking mechanism comprises two parallel docking column units, the load carrying mechanism comprises receiving assemblies located on both sides of the ship body, each receiving assembly is locked with a corresponding docking column unit, and the load carrying mechanism is unlocked with the ship body, the ship body drives away from the wharf to complete unloading, the load carrying mechanism and the docking mechanism are arranged, so that the ship body is docked during approaching the wharf, unloading is completed during driving away from the wharf, and the ship body does not need to stay at the wharf for too much time, thereby greatly shortening the unloading time at the wharf and improving the overall cargo carrying efficiency of the ship body.
Owner:MINGGUANG CITY LIUXIANG PUMP IND

Pile driving method, self-lifting barge and guide frame

The present invention provides a pile driving method, a self-lifting barge, and a guide frame, which enable the precise driving of piles. [Solution] When driving piles 10 using a self-elevating barge 1, the following steps are performed: navigating the self-elevating barge 1 to the pile driving point in the water and inserting the legs 3 into the seabed; positioning a three-dimensional guide frame 5 in a guide frame arrangement section 6 provided on the self-elevating barge 1 so that its top is above the water and its bottom is resting on the seabed; and driving the piles 10, positioned inside the guide frame 5, into the seabed 50.
Owner:KAJIMA CORP

An autonomous vessel and a method for autonomously controlling a vessel

This invention discloses an autonomous vessel and a method for maintaining a precise position or trajectory during offshore operations (e.g., cable or pipe laying or offshore construction installation). The vessel includes multiple externally anchored mooring lines, a winch system with tension sensors, a position sensor, and a control system. The control system processes position and tension data to detect deviations caused by environmental forces such as wind, waves, or ocean currents. In response, the control system activates the winch system to adjust the length of the mooring lines, counteracting forces caused by different environmental factors and achieving controlled maneuvering within the mooring area. An optional artificial intelligence module can learn from historical data to predict dynamics and optimize adjustments along predetermined waypoints. Compared to traditional dynamic positioning systems, this reduces fuel consumption, improves accuracy, and minimizes risk. It is applicable to vessels such as barges or installation platforms.
Owner:TIANCHENG MARINE ELECTRICAL EQUIPMENT CO LTD

Shallow Water LNG Processing Barge

A floating LNG storage barge with one or more LNG tanks provides mobile storage for LNG, by obtaining LNG from one or more LNG ocean transport vessels while the LNG storage barge is moored to a land-based jetty, transferring LNG to one or more land transfer trucks, pipelines or railroad tankers using an LNG distribution manifold and flexible hoses between the distribution manifold and the trucks via pumps or pressure differential between the LNG storage barge with the potential for LNG processing adaptive capacity.
Owner:HVIDE ANNIKA +3

Large-tonnage air flotation structure grouping method

The invention provides a large-tonnage air floating structure grouping method. Firstly, a semi-submersible barge is subjected to bottom sitting operation and berthed to a designated position on the shore; and then a modular transport vehicle is adopted as transfer equipment, and the multiple large-tonnage air floating structures are stably transported to the deck bearing face of the semi-submersible barge from the shore-based transport platform in sequence. In the arrangement process, a preset spacing distance is kept between the large-tonnage air flotation structures, and a shock insulator with a buffering protection function is regularly laid between every two adjacent structure units. The large-tonnage air floatation structures are provided with axially-through prestress holes in advance, during construction, high-strength pre-tightening cables penetrate through the prestress holes of the structures in sequence, hydraulic tensioning devices are installed at the two ends of the pre-tightening cables finally, and tensioning of the pre-tightening cables is achieved by controlling force application parameters of the tensioning devices. Therefore, a plurality of independent large-tonnage air floatation structures are firmly connected to form an integral transportation unit. According to the method, the problem that the efficiency is low when a large-tonnage air flotation structure is transported is effectively solved through a grouping process.
Owner:SOUTHERN BRANCH OF CHINA COMM CONSTR CO LTD +1

Pile positioning barge

ActiveCN309975416SBuoyPipe
1. The name of the design product: pile positioning barge. 2. The use of the design product: used for positioning steel pipe piles in offshore limited space and auxiliary buoy. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. Other circumstances that need to be explained: A part of the enlarged view is the main view A area of the local enlarged view; B part of the enlarged view is the left view B area of the local enlarged view; C part of the enlarged view is the rear view C area of the local enlarged view; D part of the enlarged view is the top view D area of the local enlarged view.
Owner:SINOHYDRO BUREAU 5

Installation method of air floatation structure transport ship based on self-propelled integrated ship

The invention provides an installation method of an air floating structure transport ship based on a self-propelled integrated ship, which comprises the following steps of: loading an air floating structure to be installed on a deck of a semi-submersible barge, transporting the air floating structure to a preset submerging pit position through a towing system of the semi-submersible barge and finishing anchoring and positioning, submerging the semi-submersible barge to a target submerging depth, and completing the installation of the air floating structure. Water enters the cavity of the air floatation structure; when the water level in the cavity reaches the preset water sealing height, the self-propelled ship body sails to the position above the semi-submersible barge, and mechanical butt joint is completed through the connecting assembly and the air floating structure. And after butt joint is completed, compressed air is injected into a cavity of the air floating structure, and the air floating structure is separated from the semi-submersible barge and reaches a floating state. The self-propelled hull drags the air floating structure to sail to a target mounting position; when the air floating structure is installed, air in the cavity is exhausted, and the air floating structure sinks by means of self weight. And after the air floating structure sinks and stabilizes by virtue of self weight, negative pressure pumping operation is performed on the cavity, so that the air floating structure finally sinks to a designed mounting elevation under the action of negative pressure.
Owner:SOUTHERN BRANCH OF CHINA COMM CONSTR CO LTD +1

A floating barge towing the temporary enclosure that makes up the temporary cofferdam

To provide a floating barge for towing a temporary enclosure constituting a temporary cofferdam, which can tow and install the temporary enclosure around a weir pillar at the end of an estuary weir formed so as to form a part of a revetment. [Solution] A temporary enclosure 250 is constructed to the side of the weir pillar 10A at an estuary weir having a weir pillar 10A formed to form part of the revetment and a permanent gate 14 that can be raised and lowered freely, and the temporary enclosure 250 is made up of a first temporary enclosure 20 and a second temporary enclosure 30, one of which has a J-shaped planar shape and the other an inverted J-shaped planar shape.The floating barge 300 is used when towing the temporary enclosures 20, 30, and is provided with an inlet 320 to accommodate the temporary enclosures 20, 30, and is equipped with a feed-out winch 340 and a retraction winch 330.The feed-out winch 340 and the retraction winch 330 are driven to move the temporary enclosures 20, 30 using wires 345, 335 extending from both, thereby positioning them at the installation position of the revetment 10 and the weir pillar 10A.
Owner:TAISEI CORP

Rapid loading and unloading cargo hold of transshipment barge and control method of rapid loading and unloading cargo hold

The invention relates to a cargo hold for quick loading and unloading of a transshipment barge and a control method of the cargo hold, and relates to the technical field of ships, the cargo hold comprises a W-shaped cargo hold, the bottom of the cargo hold is provided with two sets of symmetrical unloading ports along the head line and the tail line of the barge, and the unloading ports are provided with opening-degree-adjustable cargo hold door assemblies respectively; the cargo distribution detection module is installed in the cargo hold and used for obtaining cargo pile surface area information in the cargo hold, calculating the gravity center position of the cargo hold based on the cargo pile surface area information in the cargo hold and calculating the opening degree distribution result of the unloading opening in the bottom of the cargo hold based on the gravity center position information of the cargo hold; the data input end of the controller is in data connection with the data output end of the cargo distribution detection module, the signal output end of the controller is in signal connection with the signal input ends of the multiple cabin door assemblies, and the controller is used for receiving the opening degree distribution result and adjusting the opening degree of a cargo hold bottom unloading opening. The stability of the barge in the unloading process can be guaranteed.
Owner:COSCO ZHOUSHAN SHIPYARD

Offshore composite beam transporting and erecting integrated construction equipment and construction method thereof

The invention discloses offshore composite beam transporting and erecting integrated construction equipment and a construction method thereof, and belongs to the technical field of bridge construction. Comprising a barge platform, the barge platform is provided with a lifting sling, the lifting sling comprises a vertical truss, one end of the vertical truss is fixed to one end of the barge platform, the other end of the vertical truss is provided with a first truss beam perpendicular to the vertical truss, one end of the first truss beam is fixed to the other end of the vertical truss, and the other end of the first truss beam is provided with a second truss beam perpendicular to the first truss beam. A first truss beam is arranged at one end of the barge platform, a second truss beam is arranged at the other end of the first truss beam, one end of the second truss beam is hinged to the other end of the first truss beam, the other end of the second truss beam is arranged towards the other end of the barge platform, and a bolt hinge is arranged at the connecting position of the first truss beam and the second truss beam. The bolt hinge is used for adjusting the connecting angle of the second truss beam relative to the first truss beam. According to the technical scheme, the transportation and erection construction problem of the offshore composite beam is solved, and integrated operation of the offshore composite beam from transportation to erection is achieved.
Owner:中国建设基础设施有限公司 +2

A whole-segment steel box girder sliding on-ship-lifting integrated construction method without floating crane intervention

The application discloses a whole-segment steel box girder sliding on-ship-lifting integrated construction method without floating crane intervention, a whole-segment steel box girder assembling and sliding platform is arranged on the land area of the bank side of a bridge to be built, and two groups of sliding tracks are arranged in parallel on the assembling and sliding platform; a deck barge with an adaptive tonnage is selected, and ship-borne sliding tracks with the same specification and spacing as the sliding tracks on the bank side are arranged on the deck of the barge; the application greatly reduces the approach and operation of large lifting equipment, reduces fuel consumption and carbon emission of mechanical equipment, shifts the main construction operation to the land area to reduce the water operation time, effectively avoids water pollution caused by construction sewage, welding slag, waste and the like entering a river, dust and noise in land operation can be effectively controlled through conventional protection measures, the influence of construction operation on surrounding residential areas, crops and ecological environment is greatly reduced, and the application meets the relevant requirements of green construction and ecological environment protection.
Owner:ANHUI HIGHWAY BRIDGE ENG CO LTD

Seawater prevention device for barge oil cylinder

The utility model provides a barge oil cylinder anti-seawater device, and relates to the barge oil cylinder anti-seawater device field, the barge oil cylinder anti-seawater device comprises an oil cylinder assembly, the oil cylinder assembly comprises a cylinder barrel, an end cover and a rod head, the end cover is installed at one end of the cylinder barrel, a protection assembly is installed between the end cover and the rod head, the protection assembly comprises a corrugated pipe, two connecting flanges, two gaskets and a gland, the two connecting flanges and the two gaskets are fixed to the two ends of the corrugated pipe respectively, and the two connecting flanges are in threaded connection with the rod head and the gland through bolts respectively; by arranging the corrugated pipe, the connecting flange, the gasket and the gland, the effect of protecting the plug rod is achieved, the two ends of the corrugated pipe are fixed to the rod head and the gland respectively through the connecting flange, the corrugated pipe is driven to move along with the plug rod when the plug rod stretches out and draws back, and therefore the plug rod can be protected; and the condition that the plug rod is corroded and damaged by seawater is prevented, so that the service life of the oil cylinder is effectively prolonged.
Owner:CHANGZHOU WUJIN TIANYU HYDRAULIC PARTS CO LTD

Lifting device for barge and barge

The invention discloses a lifting device for a barge and the barge. The lifting device for the barge comprises a lifting steel wire and a lifting device, the lifting bracket is arranged on a deck of the barge and is close to the tail part or the side surface of the barge; the bracket top beam is arranged at the top of the lifting bracket; the supporting beam is located below the end, extending out of the barge, of the support top beam, and the lower end of the lifting steel wire penetrates through the support top beam to be connected with a fixing assembly arranged on the supporting beam; the upper end of the connecting assembly is connected with the joist, and the lower end of the connecting assembly is used for being connected with a target hanging object; the power device is arranged at the end, extending out of the barge, of the support top beam, located above the supporting beam correspondingly, connected with the upper end of the lifting steel wire and used for driving the lifting steel wire to move up and down so as to lift the target lifting object. The lifting device is flexible to install, convenient to use and low in cost, and the operation difficulty of floating unloading of the whole machine is reduced.
Owner:SHANGHAI ZHENHUA HEAVY IND

Method for semi-submersible barge and crane ship combined operation of jacket horizontal launching installation

PendingCN122646292AGravity centerLightering
The application provides a method for semi-submersible barge and crane ship joint operation of jacket horizontal launching installation, which comprises the following steps: installing the jacket horizontally on the semi-submersible barge, transporting the jacket by the semi-submersible barge to a target sea area; controlling the crane ship and the semi-submersible barge to sail to a pre-launching installation position; hanging the sling on the crane ship and the jacket; removing the binding member; controlling the semi-submersible barge to dive to a preset depth; controlling the crane ship to lift the jacket and separate the jacket from the semi-submersible barge; controlling the semi-submersible barge to sail out of the operation area; controlling the crane ship to hoist and lower the jacket; filling water to the jacket to keep the jacket upright; and installing the jacket on the seabed. The application is suitable for jacket horizontal loading and transportation, the launching installation method uses the diving operation capacity of the semi-submersible barge to provide buoyancy for the jacket, can reduce the hoisting weight and the height of the gravity center of the jacket, uses the crane ship to lift and launch the jacket, and reduces the capacity requirement of the installation ship.
Owner:CHINA NAT PETROLEUM CORP +1

Intelligent ballast method and system for buoyant body on barge

The present application relates to the technical field of intelligent load adjustment of a buoyant body on a barge, and particularly relates to an intelligent load adjustment method and system for a buoyant body on a barge. The intelligent load adjustment method for a buoyant body on a barge automatically calculates a barge-on operation scheme of the buoyant body according to a calculation length, a calculation step d, an operation time, an operation duration and buoyant body information, then automatically executes the 0th step to the Nth step according to the barge-on operation scheme, and adjusts the ballast water of the barge-on barge according to each step of the barge-on operation scheme. After the barge-on operation scheme of all steps is automatically calculated and completed, the barge-on operation scheme of each step is continuously and automatically executed. The method has less calculation amount, a continuous process, mainly controls the ballast water of the barge-on barge, is more intuitive in control, and shortens the barge-on period.
Owner:THE SECOND ENG COMPANY OF CCCC FOURTH HARBOR ENG +1

Method for inserting and driving low-clearance steel pipe piles under overwater bridge

The invention relates to a method for inserting and driving a low-clearance steel pipe pile under an overwater bridge, which is operated by a barge capable of shuttling under the bridge and an inserting and driving device on the barge, and comprises the following steps of: driving the barge to a specified position at the bottom of the bridge; the main truss of the inserting and piling equipment slides to the inserting and piling position through the sliding rail; the first crown block and the second crown block lift the steel pipe pile to longitudinally move to the cantilever end; the first crown block and the second crown block cooperate to adjust the steel pipe pile to a vertical state; positioning and guiding the steel pipe piles through a positioning frame, and inserting and driving the steel pipe piles; and after steel pipe pile inserting and driving are finished, the main truss retreats into the projection line of the barge through the sliding rail, the barge travels to the next station, inserting and driving equipment loaded on the barge is used, the main truss of the inserting and driving equipment slides through the sliding rail, the bottom of the main truss is in butt joint with an inserting and driving pile position, and a stable inserting and driving overhanging operation platform is formed.
Owner:ROAD & BRIDGE SOUTH CHINA ENG CO LTD +1