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101 results about "Ballast tank" patented technology

A ballast tank is a compartment within a boat, ship or other floating structure that holds water, which is used as ballast to provide stability for a vessel. Using water in a tank provides easier weight adjustment than the stone or iron ballast used in older vessels. It also makes it easy for the crew to reduce a vessel's draft when they enter shallower water, by temporarily pumping out ballast. Airships use ballast tanks for similar advantages.

Sacrificial anode for dry-wet alternation and high-temperature environment as well as preparation method and application of sacrificial anode

The invention relates to the technical field of corrosion prevention of marine equipment, in particular to a sacrificial anode for a dry-wet alternating and high-temperature environment and a preparation method and application of the sacrificial anode. According to the sacrificial anode, the composite material composed of the carbon nanotubes and the metal elements is added into the aluminum-based alloy, the microstructure of the aluminum alloy is improved due to the addition of the carbon nanotubes, the thermal stability of the anode is improved, surface activation of the anode is promoted, the phenomenon that the surface of the anode is crusting and even passivated due to the influence of high temperature and a dry-wet alternating environment is prevented, and the service life of the anode is prolonged. Meanwhile, good conductivity is maintained; and by optimizing the ratio of the carbon nanotubes to the metal elements, the anti-corrosion protection efficiency on a metal structure in a high-temperature and dry-wet alternating environment is enhanced. Therefore, the method is expected to be applied to ocean environments such as ocean crude oil ship ballast tanks, FPSO (Floating Production Storage and Offloading) ballast tanks and mobile oil production platforms. The preparation method provided by the invention is simple and convenient, has a good industrial application prospect, and can improve the production efficiency and reduce the environmental pollution.
Owner:中海油能源发展股份有限公司采油服务分公司 +1

Internal sensor watertight protection device for changing void tank into ballast tank

The invention provides an internal sensor watertight protection device for changing a void tank into a ballast tank, and particularly relates to the technical field of ship transformation. The protection device comprises a waterproof cabin and a probe sleeve. An equipment mounting port and an equipment access port are respectively formed in two ends of the waterproof cabin; a wire inlet interface is formed in one side, close to the equipment access hole, of the side wall of the waterproof cabin; the equipment mounting port is connected with the first blind plate flange through the first connecting flange; the equipment access hole is connected with the second blind plate flange through the second connecting flange; a through hole is formed in the center of the first blind flange; the probe sleeve penetrates through the through hole, one end of the probe sleeve extends into the inner cavity of the waterproof cabin, and the other end of the probe sleeve is fixed with an installation screw seat of an original sensor of a ship bulkhead. The device is simple in structure and good in air tightness, watertight protection can be carried out on an original sensor when a void tank is changed into a ballast tank, no new mounting hole needs to be additionally arranged, hot work does not need to be carried out, and bin cleaning and explosion measurement work is avoided.
Owner:QINGDAO BEIHAI SHIPBUILDING HEAVY IND CO LTD

A split-hull cutter suction dredger with a sealed transition structure

ActiveCN224466056USafe operationBallast tank
The utility model relates to a kind of assembled cutter suction dredger side pontoons with sealing transition structure.The side pontoons are sequentially connected by head section side pontoon monomer, middle side pontoon monomer and tail section side pontoon monomer.The head section side pontoon monomer includes head ballast tank, first main buoyancy empty cabin and deck, and first sealing transition empty cabin is arranged at the end thereof.The middle side pontoon monomer includes second main buoyancy empty cabin, storage cabin and deck, and second sealing transition empty cabin with the same width as the first sealing transition empty cabin is arranged at the end of the storage cabin, and the two are sealingly connected by fastener, and third sealing transition empty cabin is arranged at the side of the middle side pontoon monomer adjacent to the main pontoon.The tail section side pontoon monomer includes generator cabin, fuel cabin, tail ballast tank and deck, and fourth sealing transition empty cabin is arranged at the side of the tail section side pontoon monomer adjacent to the middle side pontoon monomer, and fifth sealing transition empty cabin is arranged at the side of the generator cabin adjacent to the main pontoon.The design realizes efficient, stable and safe operation of side pontoons through modular assembly and sealing transition structure optimization.
Owner:中交(苏州)城市开发建设有限公司 +2

Multi-working-condition adaptive integrated semi-submersible truss net cage

The application relates to the technical field of aquaculture net cages, and discloses a multi-working-condition self-adaptive integrated semi-submersible truss net cage which comprises a net cage and a net cover. The net cover is arranged outside the net cage, and the bottom of the net cage is symmetrically provided with ballast tanks. The combined cooperation of a scraping ring, a first motor, a first pull rope, a second pull rope, a reset assembly, a capturing assembly and a second motor can clean the impurities attached to the inner walls of the ballast tanks, can avoid the impurities from being accumulated on the inner walls of the horizontal tanks and the vertical tanks, can avoid the situation that the volume of the horizontal tanks and the vertical tanks is reduced due to long-term accumulation of the impurities, can affect the use, can capture the impurities during cleaning, can prevent the impurities from moving to the inner wall on the side of the horizontal tanks or the vertical tanks which is in contact with the scraping ring during resetting, can ensure that the resetting of the scraping ring is not affected by the impurities, can ensure that the scraping ring can be reset smoothly, can shake off the captured impurities from the ring net through beating the ring net, and can make the impurities be discharged from the ballast tanks more fully.
Owner:CCCC SOUTH CHINA TRANSPORTATION CONSTR CO LTD +2

A wave-activated buoyancy regulator

PCT designated stageWO2026037847A1Buoyancy meansBuoysBuoyancy regulationMechanical engineering
A wave-activated buoyancy regulator for structures positioned in a body of water, wherein a wave-activated pump is used to provide neutral, negative and positive buoyancy in response to prevailing ambient wave conditions, through the variation of the ratio of a first fluid to a second fluid within a ballast tank.
Owner:IMPACT9 ENERGY & MARINE LTD

Offshore production facility for producing, treating and refining raw gas

ActiveUS12662787B2Artificial islandsUnderwater structuresProcess equipmentNatural-gas processing
An offshore industrial complex for raw gas extraction, treatment, and processing includes a gravity-based structure (GBS) with a topside on it, including a drilling facility with drilling rig, flare unit, process equipment for raw gas treatment and processing as modules, and living quarters. The GBS has central and protruding parts. The central part is a rectangular prism with a top slab, on which the process equipment is installed. The protruding part stretches along the central part sides and has vertical external walls. The central and protruding parts share a base slab, the protruding part being lower in height than the central part. The central part has longitudinal and transverse walls that form compartments, including ballast compartments and compartments accommodating storage tanks for respective processed products. The protruding part has internal walls that are perpendicular to its external walls and form ballast compartments.
Owner:PUBLICHNOE AKTSIONERNOE OBSHCHESTVO NOVATEK

Construction of floating wind turbine foundations

A method of constructing a floatable foundation (100) for a wind turbine generator, the method comprises: assembling a hull (101) for the floatable foundation (100) at a shoreside yard (102), the hull (101) comprising three interconnected columns (20,21,22), each column (20,21,22) having a ballast tank (140-142) arranged at least partly therein and a ballast water filling interface (143-145) fluidly connected to the respective ballast tank (140-142); moving the hull (101) from the shoreside yard (102) to a floating position adjacent or spaced from the shoreside yard (102); and with the hull (101) in the floating position, filling each of the ballast tanks (140-142).
Owner:AKER SOLUTIONS AS

Intelligent thickness measurement robot and method for buried storage tanks based on ultrasonic detection

This invention provides an intelligent thickness measurement robot and method for buried storage tanks based on ultrasonic testing. The robot comprises: a buoyancy attitude system including a ballast tank, an explosion-proof pump, a venting hose, and a liquid level sensor; a power system including multiple thrusters installed at the rear and middle sections of the pressure-resistant and corrosion-resistant hull; a navigation and positioning system including a dual-frequency identification sonar, a high-definition camera, an inertial measurement unit, and an ultra-wideband beacon; and an electrical and communication system including a power module and a composite communication module. The control system is connected to the buoyancy attitude system, the power system, the electromagnetic ultrasonic testing system, the navigation and positioning system, and the electrical and communication system. The method includes: beacon deployment and robot deployment; environmental modeling and path planning; autonomous navigation and adaptive detection; generation of wall thickness distribution cloud maps and intensified scanning of defect areas; robot retrieval and report generation. This invention enables safe, efficient, and comprehensive non-contact wall thickness measurement of buried storage tanks made of various materials.
Owner:GUANGDONG INSTITUTE OF SAFETY PRODUCTION & EMERGENCY MANAGEMENT SCIENCE & TECHNOLOGY

Offshore floating type fan platform foundation with stability compensation

The invention relates to the field of offshore floating type wind power, in particular to an offshore floating type fan platform foundation with stability compensation. A stability compensation system, a stabilization device and a control system are arranged in a semi-submersible platform; the semi-submersible type platform foundation comprises vertical stand columns circumferentially arrayed on the periphery of a tower drum, the vertical stand columns and the tower drum are fixedly connected through steel beams, and watertight isolation void cabins and ballast tanks are arranged in the vertical stand columns. The stability compensation system comprises a hydraulic device located in the vertical stand column and further comprises a ballast device located in the watertight isolation void cabin. The stabilization device comprises a plurality of groups of spiral strakes, water pressing plates and streamline flow guide plates; the control system comprises a control processor, a plurality of groups of acceleration sensors, an angle sensor and a sounding pipe; the acceleration sensor and the angle sensor are located in the isolation void cabin; and the sounding pipe is positioned in a ballast tank of the compensation buoy. The method does not need to excessively depend on compensation modes, such as variable pitch, affecting the power generation efficiency, the stability compensation effect is improved, and multiple stability guarantees are provided for the platform.
Owner:HANCHEN ELITE MARINE ENG (JIANGSU) CO LTD

Spar platform for a floating offshore wind turbine

A floating spar platform 7 for supporting an offshore wind turbine comprises at least one first ballast tank 15 for holding adjustable ballast and at least one second ballast tank 16 for holding adjustable ballast. The second ballast tank 16 is arranged vertically higher than the first ballast tank 15, allowing a vertical distance between the bottom of the spar platform 7 and the centre of centre of gravity 31 of the spar platform 7 to be controlled by adjusting the amount of ballast held within the first and / or second ballast tanks 15, 16. This provides for control over the resonant response of the floating spar platform 7. During installation of a wind turbine on the floating spar platform 7, ballast associated with the spar platform may be adjusted in order to increase the vertical distance between the bottom of the spar platform 7 and the centre of gravity 31 of the spar platform 7, which reduces wave-induced resonant motions of the spar platform 7.
Owner:EQUINOR ENERGY AS

Marine submersible vehicle retracting and releasing system based on hull linetype and operation method

The system comprises an operation area and a main deck submersible storage area, the operation area ranges from the cross section where a first watertight lifting door is located to a watertight transverse bulkhead, and the watertight transverse bulkhead ends at a main deck. A continuous watertight longitudinal bulkhead is arranged on each of the two sides of a left board and a right board, a top deck is arranged in an operation area, and the transverse range is from an outer board to the watertight longitudinal bulkheads on the same side. Two ballast tanks are symmetrically arranged on each of a left board and a right board, the ballast tanks are separated by watertight transverse enclosure bulkheads and are longitudinally separated by a middle longitudinal enclosure bulkhead arranged in the middle of the ship, the cross section of the operation area is U-shaped, and a watertight lifting door I and a watertight lifting door II are arranged in the operation area. A drifting platform is arranged in the cabin and used for carrying an ocean submersible vehicle, and a buoy is arranged below the drifting platform. The transport ship is prevented from being influenced by severe sea conditions during retracting and releasing operation as much as possible, the operation window period is prolonged, the tail flow field is effectively improved, and the ship body propelling efficiency is improved.
Owner:RES INST 708 OF CHINA STATE SHIPBUILDING CORP

Catamaran combined floating breakwater with integrated oscillating water column wave energy conversion device

ActiveCN116591886BMachines/enginesEngine componentsWave power generationOscillating Water Column
The present application relates to a kind of integrated oscillating water column type wave energy conversion device's catamaran combination type floating breakwater, single section floating breakwater includes floating body structure and oscillating water column type wave power generation system;Floating body structure includes catamaran pontoon structure, catamaran float structure and underwater wave board;The upper portion of float is equipped with ballast tank, battery compartment and airflow duct, and the lower portion is equipped as first air chamber;Underwater wave board is installed in the lower end of float, forms second air chamber, and second air chamber is communicated with first air chamber and is jointly constituted air chamber structure;Air chamber structure is provided with water inlet in the direction perpendicular to wave incidence;Generator set is arranged in airflow duct, and airflow duct is communicated with external gas and air chamber structure.The catamaran of the present application not only can effectively enhance the weakening effect of floating breakwater to long-period wave, but also can be used twice to transmission wave and diffraction wave;The combination of underwater wave board and float improves the space of air chamber, and enhances the power generation efficiency of wave energy power generation device.
Owner:WUHAN UNIV OF TECH

Passive ballast adjusting system for dynamic attitude response of wind turbine

The invention discloses a passive ballast adjusting system for dynamic attitude response of a wind turbine in the technical field of ocean engineering and wind power generation, which comprises a floating platform, an inertia pendulum body device used for generating relative displacement when the posture of the floating platform changes is arranged on the lower portion or in the middle of the floating platform, the inertia pendulum body device is connected with the lever control mechanism through a rope traction device, and the rope traction device converts movement of an inertia pendulum body into a driving effect on the lever control mechanism through an arranged pulley. The lever control mechanism is connected with the water ballast tank and drives the sealing solid disc arranged in the water ballast tank to ascend or descend so that seawater can be sucked or discharged, self-adaptive gravity center adjustment and platform posture stabilization can be achieved, and the spring auxiliary device is arranged at the top of the water ballast tank. The spring auxiliary device is used for assisting in restoring the sealing solid disc to the original position, and passive resetting of the system is achieved.
Owner:YANGZHOU UNIV

Ballast tank ventilation pipeline penetrating structure of roll-on-roll-off ship

The utility model discloses a roll-on-roll-off ship ballast tank ventilation pipeline penetrating structure which comprises a ballast tank inner bottom plate and a supplement plate, a plurality of longitudinal ribs are arranged on the reverse side of the ballast tank inner bottom plate in parallel at intervals in the width direction of a ship, and the supplement plate is connected with the longitudinal ribs. And the ventilation pipeline penetrates through the supplement plate or the longitudinal bone and / or the longitudinal bone and the supplement plate. The ventilation pipeline penetrating structure of the ballast tank of the roll-on-roll-off ship is simple in connection and small in weight increase, and a ventilation pipe hole of a pipe system is reserved so that the ventilation pipe hole can transversely penetrate through a longitudinal component of the structure.
Owner:CSC JINLING SHIPYARD

A method for detecting and preventing leakage of a cable transition box in a ballast tank

The application discloses a kind of for the cable transition box leakproofness detection and leakage prevention method in ballast tank, the method is sealed to the cable transition box by first carrying out leakproofness detection, after being sealed to door hole by sealing plate, leakproofness detection is carried out again, negative pressure leakproofness detection is carried out to small steel plate on sealing plate, finally, door cover is installed on fixed plate, and cable transition box leakproofness detection and leakage prevention operation are completed.The application carries out leakproofness detection to door cover first, and re-welds to the leak welding seam, and the sealing plate is welded and sealed using to door hole, and leakproofness detection is carried out again to sealing plate, and the double sealing of cable transition box is realized by installing door cover, improve the sealing effect of cable transition box, prolong the service life of cable transition box, avoid the cable break problem.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

A marine platform transport device

The application discloses a marine platform transportation device and relates to the technical field of offshore engineering. The transportation device comprises a transportation ship body and a supporting assembly. The outer wall and the inner part of the transportation ship body are both provided with ballast tanks. The winding winch is provided with two clamping ropes. The tail part of the transportation ship body is provided with a tail clamping piece. The middle part of the tail clamping piece is rotatably installed on the side wall of the transportation ship body. The upper end of the tail clamping piece extends to the upper side of the tail part of the transportation ship body. The lower end of the tail clamping piece is provided with a floating piece. The two clamping ropes are connected to the tail clamping piece. The supporting assembly comprises a bracket and at least one sliding rail. The bottom of the bracket is fixed on the transportation ship body. The end of the bracket close to the bow of the transportation ship body is provided with a front guard plate. The device has the advantages of simple structure, automatic separation of the marine platform structure from the transportation ship body when the transportation ship body is submerged, convenient unloading, clamping of the marine platform structure during transportation, guarantee of transportation stability and high practicability.
Owner:HEBEI PETROLEUM VOCATIONAL & TECH UNIV

Layered floating breakwater with adjustable draft and anti-typhoon functions

The invention discloses a layer type floating breakwater with adjustable draft and anti-typhoon functions, which comprises an upper buoyancy tank, a middle adjusting tank and a lower ballast tank, and is characterized in that the ballast tanks capable of being filled and discharged with seawater are arranged in an upper floating body and a lower floating body, and a water inlet valve, a water discharge valve, a sensor and an intelligent control system are arranged. By controlling the weight of seawater in the ballast tank, three core function modes are realized: in a transportation laying mode, the ballast tank is empty, the dead weight of the structure is greatly reduced, and the construction cost and the marine towing cost are remarkably reduced; in a normal wave dissipation mode, the immersion depth can be flexibly adjusted to adapt to different wave conditions, and the wave dissipation performance is optimized; in an anti-typhoon mode, seawater is injected into all the ballast tanks, so that the total weight of the breakwater is larger than the buoyancy of the breakwater, the breakwater controllably sinks and stably sits on the seabed, impact of typhoons and huge waves is fundamentally avoided, and water is drained, floated and reset after the typhoons. According to the invention, economy, high efficiency and active risk avoiding safety are integrated.
Owner:JIANGSU MARITIME INST

Small floating platform for nearby control of marginal gas field underwater production system

The invention provides a small floating platform for nearby control of an underwater production system of a marginal gas field, which comprises a top platform, a support column and a bottom ballast tank, the top platform is arranged at the top end of the support column, and the bottom ballast tank is arranged at the bottom end of the support column. The method has the beneficial effects that the movable small floating platform is adopted and arranged at the wellhead nearby, the length of the umbilical cable is shortened from the kilometer level to the hectometer level, the material cost, the manufacturing cost, the laying cost and the maintenance cost of the umbilical cable are remarkably reduced, the offshore construction period is shortened, and the economic benefits of marginal gas field development are effectively improved. On the basis, the problems of control signal delay, attenuation of hydraulic pressure and medicament injection pressure and the like caused by long-distance transmission can be avoided, the response speed, stability and reliability of a control system are greatly improved, and the method is particularly suitable for economic and efficient development of offshore marginal gas fields which are far away from a main gas field and are limited in reserves and distributed dispersedly.
Owner:HAINAN BRANCH OF CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD

Underground storage tank intelligent thickness measuring robot based on ultrasonic detection and thickness measuring method

The invention provides a buried storage tank intelligent thickness measuring robot based on ultrasonic detection and a thickness measuring method. The robot is characterized in that a buoyancy attitude system comprises a ballast tank, an anti-explosion pump, a ventilation hose and a liquid level sensor; the power system comprises a plurality of propellers which are respectively mounted at the rear end and the middle section of the pressure-resistant anti-corrosion cabin body; the navigation positioning system comprises a dual-frequency identification sonar, a high-definition camera, an inertial measurement unit and an ultra-wideband beacon; the electrical and communication system comprises a power supply module and a composite communication module; the control system is connected with the buoyancy attitude system, the power system, the electromagnetic ultrasonic detection system, the navigation positioning system and the electrical and communication system. The method comprises the steps of beacon laying and robot deployment; environment modeling and path planning; performing autonomous navigation and adaptive detection; a wall thickness distribution cloud picture is generated, and a defect area is encrypted and scanned; and robot recovery and report generation. According to the invention, safe, efficient and full-coverage non-contact wall thickness detection operation can be carried out on buried storage tanks made of various materials.
Owner:GUANGDONG INSTITUTE OF SAFETY PRODUCTION & EMERGENCY MANAGEMENT SCIENCE & TECHNOLOGY

Composite material water ballast tank and manufacturing method thereof

The invention relates to a composite material water ballast tank and a manufacturing method thereof, the composite material water ballast tank is suitable for a deep diving lifeboat, the composite material is adopted to form the water ballast tank, the water ballast tank adopts a built-in framework and a secondary forming shell, and the composite material has remarkable advantages in the aspect of complex shape forming compared with a metal material. The appearance of the device can fit the structural design of the outer side of a pressure-resistant shell of the deep diving lifeboat, and the utilization rate of outboard space of the deep diving lifeboat is increased. The method for preparing the water ballast tank adopts a two-time forming process, so that the overall strength of the water ballast tank is improved. According to the ballast water tank, the problem that reinforcing ribs in a small metal ballast water tank are difficult to weld is solved, and the maintenance amount in the later use process is small.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER

Multi-functional support platform at sea

The offshore multifunctional support platform disclosed by the application relates to the technical field of ocean engineering and comprises a main hull. The main hull is provided with a floating diving system and a berthing system. The floating diving system comprises a plurality of ballast tanks for containing seawater. The berthing system comprises a floating dock provided with a wharf for stopping a ship or a deep submergence vehicle. When the ship stops, the seawater in the ballast tanks is discharged to make the floating dock float to above the sea surface, so that the ship drives into the wharf. When the deep submergence vehicle stops, seawater is injected into the ballast tanks to make the floating dock dive to below the sea surface, so that the deep submergence vehicle drives into the wharf. The application can make the deep submergence vehicle / ship safely and quickly get out of and back into the cabin through the semi-submersible structure of the main hull.
Owner:GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI

Autonomous diving typhoon-preventing disaster-avoiding truss type net cage

The utility model discloses an autonomous diving typhoon-preventing disaster-avoiding truss type net cage, which relates to the technical field of mariculture and comprises a plurality of main supporting columns and a culture net cage, a plurality of ballast tanks are arranged inside the plurality of main supporting columns from top to bottom, the plurality of main supporting columns are connected through netting to form the culture net cage, and the netting comprises a side net, a cover net and a bottom net. The side net is fixedly connected with the main supporting column, the cover net is fixedly connected to the upper portion of the side net, and the bottom net is fixedly connected to the lower portion of the side net. Wherein at least one ballast tank is higher than the aquaculture net cage, and the submergence depth of the aquaculture net cage is adjusted by adjusting the ballast water amount of the plurality of ballast tanks. According to the utility model, the dive of typhoons on the sea can be avoided through deep diving, so that the survival rate of cultured products is improved.
Owner:GUANGDONG HAISHENG HI-TECH CO LTD

Land-based test device and test method for active ballast system of floating wind turbine

This invention provides a land-based test apparatus and method for an active ballast system for floating wind turbines. The apparatus includes a swing frame, a platform hydrostatic stiffness simulator, a floating wind turbine model, a ballast tank, a level sensor, pipes, remote-controlled valves, and a water pump. The swing frame simulates platform rotation, the platform hydrostatic stiffness simulator uses springs for simulation, and the load simulator reproduces the wind, wave, and current load history, achieving an equivalent land-based simulation of the floating wind turbine-ballast coupling system. The test method includes wind, wave, and current load calibration, model assembly and adjustment, platform hydrostatic stiffness simulator calibration, and load adjustment testing. This invention eliminates the need for a water tank or sea trial, is low-cost, has a short cycle time, is repeatable, and can comprehensively verify the control logic and load adjustment effect of the active ballast system.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER

Surge damping systems and processes for using same

Surge damping systems and processes for using same. In some embodiments, a system for mooring a vessel can include a mooring support structure that can include a base structure and a turntable disposed on the base structure. A vessel support structure can be disposed on the vessel. At least one extension arm can be suspended from the vessel support structure. A ballast tank can be connected to the extension arm. A uni-directional passive surge damping system can be disposed on the vessel and can include an elongated tension member connected to the ballast tank that can be configured to dampen a movement of the ballast tank by applying a tension thereto. A yoke can extend from and can be connected at a first end to the ballast tank and can include a yoke head disposed on a second end thereof that can be configured to connect to the turntable.
Owner:MODEC AMERICA INC

A lifting type truss net cage for semi-submersible culture sitting on the bottom and avoiding the platform

The application belongs to the technical field of marine aquaculture, and discloses a lifting type truss net cage for semi-submersible cultivation and bottom-avoiding platform, which comprises a truss net cage structure, wherein a net is arranged in the truss net cage structure; the lifting type truss net cage further comprises a multi-working-condition ballast tank assembly, a positioning ballast tank, a traction rope and an in-out fish assembly; the multi-working-condition ballast tank assembly is connected to the front and back surfaces of the bottom end of the truss net cage structure; according to the sea condition forecast or real-time monitoring data, the truss net cage structure can be actively and quickly switched between the floating, semi-submersible and fully-submersible states; when extreme weather such as typhoon is encountered, the truss net cage structure can be dived to the semi-submersible or fully-submersible state to avoid the area with the strongest surface wind and wave impact, thereby greatly reducing the damage of the truss net cage structure and the risk of fish escape, and realizing the leap from passive bearing to active avoidance.
Owner:CCCC SOUTH CHINA TRANSPORTATION CONSTR CO LTD +2

Offshore photovoltaic system

The invention discloses an offshore photovoltaic system in the technical field of offshore renewable energy sources, which comprises a floating platform formed by connecting a plurality of floating body units, a photovoltaic assembly is arranged on any floating body unit, a ballast tank is arranged below the floating platform, one end, far away from the floating platform, of the ballast tank is fixedly connected to the seabed through an anchor point assembly, and the other end of the ballast tank is fixedly connected to the bottom of the sea. An adjusting mechanism is arranged between every two adjacent floating body units and comprises a first connecting piece, a memory alloy assembly and a second connecting piece which are fixedly connected in sequence, the first connecting piece and the second connecting piece are connected with the two adjacent floating body units respectively, and the phase change temperature of the memory alloy assembly corresponds to the sea surface temperature. The adjusting mechanism of the photovoltaic system can automatically adjust the rigidity according to the wave frequency, the phenomenon of local stress concentration of the floating platform is reduced, the photovoltaic system can better adapt to changeable sea waves on the sea surface, and the sea wave resisting capacity of the photovoltaic system is improved.
Owner:CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE

Self-stabilizing floating ball device and blow molding tool

A self-stabilizing floating sphere device comprising an upper casing (1) and a lower casing (2) connected to each other, characterized in that the interior of the upper casing (1) forms a sealed main buoyancy chamber, the outer surface of which is dark in color; wherein the interior of the lower casing (2) forms an open ballast tank, the side walls and / or bottom of which are provided with several inlet openings (3) through which water can enter, and the outer surface of which is light in color; wherein the upper casing (1) is flat-spherical and hollow, provides the main buoyancy and is separate from the lower casing; wherein the design of the ballast tank enables the floating sphere device to automatically take on ballast water when deployed on the water surface in order to lower the center of gravity, achieve self-stability and at the same time ensure resistance to wind, waves and tipping.
Owner:CHINA THREE GORGES CORPORATION

Anti-overturning structure and method for offshore wind power floating platform

PendingCN121913076AVessel safetyShip vibration reductionElectrical connectionOffshore wind power
The invention relates to the technical field of offshore wind power generation, in particular to an offshore wind power floating platform anti-overturning structure which comprises a platform body, a ballast tank, an adjusting valve, a conveying pump, a ballast collecting unit, a damping unit, an intelligent detection unit and a central control unit. The damping unit is movably arranged on the outer side of the platform body and connected with the central control unit, the intelligent detection unit is fixedly arranged on the outer side of the platform body and connected with the central control unit, the ballast tank is fixedly arranged on the inner side of the platform body, and the input end of the conveying pump is connected with the outer side of the ballast tank through a pipeline and electrically connected with the central control unit. The adjusting valve is connected with the ballast tank through a pipeline and electrically connected with the central control unit, the ballast collecting unit is fixedly arranged in the ballast tank and connected with the central control unit, and therefore the anti-overturning effect of the platform is achieved.
Owner:SHANGHAI OUYANG OFFSHORE WIND POWER TECH CO LTD

Dynamic anti-icing system for ballast tank of polar ship

The invention provides a dynamic anti-icing system for a ballast tank of a polar region ship, which belongs to the technical field of ship anti-icing, and comprises a flow guide main pipe mounted in the ballast tank and perpendicular to the bottom surface of the ballast tank, the interior of the flow guide main pipe is a main air passage of a hollow structure, and the first end of the flow guide main pipe is open and penetrates out of the ballast tank; an electromagnetic valve is arranged in the flow guide main pipe; the spraying module is fixed to the flow guide main pipe, the head end of the spraying module communicates with a main air channel of the flow guide main pipe, and a vortex guide nozzle is arranged at the tail end of the spraying module. The multi-stage piezoelectric transducer array is installed along the outer wall of the flow guide main pipe and used for emitting sound waves. And the central controller is in communication connection with the multi-stage piezoelectric transducer array and the electromagnetic valve and is used for controlling the electromagnetic valve to be opened and controlling the multi-stage piezoelectric transducer array to work under the condition that the water environment temperature in the ballast tank is smaller than a preset temperature threshold value. The technical problem that an existing anti-icing scheme is insufficient in ice restraining capacity can be solved.
Owner:WUHAN UNIV OF TECH

A method and system for adjusting ballast water of a full-circle crane piling ship

PendingCN122154240AGeometric CADAuxillariesMathematical modelTournament selection
The application discloses a kind of full slewing crane pile driver ship ballast water regulating method and system. Including: establishing ship appendage coordinate system;Synchronous acquisition hoisting load, ship floating state and ballast tank state data;Build the full slewing dynamic moment balance mathematical model including longitudinal and lateral coupling effect and free surface correction;Ballast water regulation is converted into the strong constraint double-objective optimization model with the shortest deployment time and the largest stability reserve as target;Improved NSGA-II algorithm is used for iterative solution, including heuristic moment compensation initialization, safety margin weighted crowding distance calculation and feasibility priority tournament selection;Pareto optimal solution set is converted into ballast pump start-stop and valve opening degree instruction, and based on the deviation of real-time monitoring inclination and model prediction inclination triggers dynamic compensation.The application realizes the fast, accurate and safe generation of ballast water scheme, so as to realize the stability regulation of full slewing crane pile driver ship in complex dynamic construction environment with high response, high precision and intrinsic safety.
Owner:CCCC FOURTH HARBOR ENG INST CO LTD