1023 results about "Ballast tank" patented technology

A Method and Apparatus for Wake Enlargement System have been disclosed. By using water pick ups that are mounted or deployable on a boat controlled filling of ballast tanks is possible without the use of pumps.

The invention discloses a novel environment-friendly coating with superhigh marine environment corrosion resistance and a preparation method and application thereof. The environment-friendly coating with superhigh marine corrosion resistance consists of the following components in part by weight: a main agent comprising 22 to 35 parts of low-viscosity solvent-free epoxy resin, 9 to 15 parts of activated thinner, 0.2 to 5 parts of aid, 5 to 8 parts of organic solvent, 0.5 to 15 parts of toner, 10 to 25 parts of first filler, 20 to 45 parts of second filler and 0.5 to 5 parts of thixotropic agent, and a curing agent comprising 60 to 90 parts of amine resin, 10 to 30 parts of activated thinner, 2 to 8 parts of aid and 2 to 10 parts of organic solvent. During use, the main agent and the curing agent are uniformly mixed, and the mixture is applied to the surface of a substrate. A film formed by the coating is high in corrosion resistance and low in content of volatile organic compounds (VOC), does not contain any toxic or harmful substance, can be universally used in a drinking water tank, and also can be used for a ship ballast tank, a ship bottom, a deck and each position of a marine platform.

Ballast water treatment apparatus and methods for preventing foreign aquatic invasive species form entering marine ecological zones by translocation in ship's ballast water. The apparatus includes a housing, a filter member, and UV water treatment chambers. Methods include use of a ship's fire hydrant system or ballast water discharge port for moving ballast water from the ship's ballast tanks into the apparatus for filtration and treatment. In-port service vessels and barges as well as dock-side service vehicles are equipped with the various treatment and filtration apparatus to provided in-port or dock-side ballast water treatment services. Related methods are also provided.

A method to treat ballast water comprises injecting ozone into water loading into a sea faring vessel prior to charging the water into a ballast tank; and charging the ozone injected water into the ballast tank. A system for treating ballast water comprises a sea faring vessel including at least one ballast tank; an ozone generator that generates ozone, a ballast water conduit that uptakes water through a loading port of a sea faring vessel and conducts the water to load the ballast tank; and an ozone feed line that injects ozone from the generator into water in the conduit at an injection point located upstream to an intersection of the conduit with the ballast tank.

Articulated tug and barge arrangements and methods for transportation, storage and regasification of liquefied natural gas (LNG) aboard barge units and for ballasting the barge units are provided. A barge unit includes a type C tank for the containment of LNG under pressure and a regasification unit fluidly coupled to the type C tank for regasification of LNG aboard the barge unit for offloading natural gas. The barge unit is adapted for loading LNG directly from a liquefaction plant, for transporting LNG by operatively coupling to a tug unit, as well as for storing LNG at a destined off board facility, and for fueling a floating power production facility. The arrangements and methods provide a transport terminal ring. The arrangements and methods provide for the circulation of seawater through the regasification unit and into ballast tanks for ballasting of the barge unit while offloading natural gas.

The underwater electrical generator includes a stator core and counter-rotating turbine blades with permanent magnets in the hubs and windings in the core housing. When tethered by the nose of the housing, the water current rotates the turbine blades generating electrical current which is supplied for commercial use via the tether to a land-based utility. Ballast tanks are provided to maintain the generator at a predetermined depth. Small stator windings and permanent magnets are provided in the rotating hubs and core housing respectively to charge batteries in the hubs for altering the pitch of the blades such that the blades can be feathered for maintenance outages.

An apparatus and method for precisely controlling production, injection, and removal of disinfectants using electrolysis according to the flow rate of ballast water are provided, where the ballast water flows into or is discharged from the ballast tank to manage the ballast water or ships so that destruction or disruption of marine ecosystems can be prevented. An apparatus for treating ballast water and treatment method using the same are provided, the apparatus including: an electrolysis module for producing concentration-controlled sodium hypochlorite; a gas-liquid separator for separating hydrogen gas; a micro bubble generator for mixing and supplying reducing agents while reducing residual chlorine; a vortex generator for generating vortex; and a control system. The control system controls a salinometer, a flow rate meter, a residual chlorine meter, a seawater supply pump, flow rate control valves, an electrolysis module, a residual chlorine meter, a micro bubble generator, and an injection pump.

The invention provides an automatic control system and an automatic control method for ship heeling balance. Multiple anti-heeling pumps capable of independently working and multiple pairs of anti-heeling ballast tanks are arranged in the automatic control system, so that rolling of a ship in a moored condition, at various navigational speeds, such as a medium-high navigational speed, a low navigational speed and a zero navigational speed and under various encounter wave directions can be effectively reduced, and heeling and trimming caused to the ship by various factors: loading unbalance, local cabin breakage and wind pressure, are rapidly compensated, so that special engineering ships like pipe-laying ships and the like have low economic risk, can adapt to severe environment conditions, and meanwhile, have the characteristics of operational safety of offshore working, and the like. The automatic control system and the automatic control method for the ship heeling balance have very good popularization and use value.

The invention discloses a semi-submersible type production platform of reservoir oil positioned below a water surface. The semi-submersible type production platform comprises an annular buoyancy tank, a box-shaped deck and at least three upright posts, wherein the annular buoyancy tank is internally provided with a water ballast tank, an oil storage compartment and a pump compartment; the box-shaped deck is provided with an oil-gas processing system, well drilling equipment, a positioning mooring system and a moon pool and internally provided with a production function compartment and a well drilling equipment compartment; and the annular buoyancy tank is connected with the box-shaped deck through the upright posts. The semi-submersible type production platform has an oil-gas production function, a storage and transportation function and a well drilling function, can be removed and reused, is flexible and suitable for the early pilot production and a deepwater oil field and bore well development, can be used effectively lowering the economic risk of the development of a deepwater oil and gas field, has more excellent motion performance compared with a ship form and a circular platform by adopting a semi-submersible type platform structure form and can meet the requirement for simultaneous performance of platform well drilling and production operation under the conditions of harsh marine environments, i.e. the South China Sea and the like.

The gravitationally balancing vertical ship elevator for launching and upsloping ship in ship yard includes tower columns on two sides, driving pulley devices on the tower columns, steel cables configured in the driving pulley devices and with one end connected to the under carriage inside the tower column and the other end connected to balance weight, and locking device inside the tower column and fitting the under carriage, as well as floating pontoon, which is connected via movable connecting device to the under carriages and has ballast tanks connected with water feeding and draining device. The present invention completes the ascent and descent of ship in gravity balancing mode and converts the gravitational potential energy to reduce the needed driving power for the ship ascending process. The present invention has the advantages of reduced and simplified driving configuration, low power consumption, and low cost, etc. and is especially suitable for launching and upsloping ship in steep berth.

A multi-use, multi-level structure can be installed in and removed from a body of water in a seasonal fashion. The structure has a lower level that includes a boat lift and an upper level that provides an entertainment area. The structure carries a buoyancy system for selectively floating the structure on the body of water or sinking the structure in the water. The buoyancy system preferably comprises a ballast system that includes an array of hydraulically interconnected ballast tanks that are vented to the atmosphere. A valve may be opened to admit water to the ballast tanks to flood the tanks. A pump is used to pump water out of the ballast tanks when desired.

The present invention describes a composition of thermosetting resins, in particular epoxy resins, combined with modified polysiloxane networks to form a continuos interpenetrated network characterized by the presence of metals such as boron, molybdenum and tungsten, linked to Si via an oxygen atom. These compositions, can be used to make adhesives, composites and coatings that exhibit excellent hardness, chemical resistance, fast curing, damp tolerance and are self priming with slow release of a corrosion inhibitor or of functional additives. The material of the present invention can be used in particular as a coating, in the marine field, for yachts and for large metal vessels, such as oil tankers and more in particular for cargo or ballast tanks and on hulls. It can be used for the maintenance and protection of trains, automotive vehicles and in electric applications such as for the production of dielectric shields and in those fields where high performance is needed.

The invention discloses a floating cofferdam type wave energy generating set, which comprises a tower convergent wave pool consisting of a platform and a multistage conic pool. The bottom of the tower convergent wave pool is divided into a plurality of ballast tanks and provided with a water level sensor, the upper cavities of the ballast tanks are filled with a buoyancy material, the platform is arranged on the buoyancy material of a groove in the middle of the convergent wave pool, and the platform is provided with a controller, a compressed air system and a baffle wall; the baffle wall is provided with a sensor, the low level of each stage of the convergent wave pool is provided with a pipeline leading to the sea level, the pipeline is internally provided with a Kaplan turbine and an asynchronous generator, the floating cofferdam type wave energy generating set is connected with anchor pipers with swivel links through anchor chains, and the anchor pipers are anchored at the bottom of the sea. According to the draught height of a wave height adjusting device, the floating cofferdam type wave energy generating set is not influenced by tide level and limited by terrain, always works towards the waves all around, can catch the wave energy as much as possible under various conditions, and has the advantage of high working efficiency; only the Kaplan turbine is the unique movable component so that the reliability of the whole set is improved.

A floating platform for wind energy extraction, comprising a structure (S) which is the support for the assembly (P) made up of a wind turbine tower (3), a nacelle (2) and its corresponding rotor blades (1), whereby the support structure (S) is formed by an upper structure (4) which joins the assembly (P) to the floating tank (5), which is, in turn, joined by means of a lower structure (7) to the ballast tank (8), and whereby said ballast tank (8) is configured to control the assembly's centre of gravity and adjust the flotation line by the distribution of mass.

The invention provides a novel floating type multifunctional seaborne test platform. The novel floating type multifunctional seaborne test platform comprises a floating type platform and a matched sea mooring system, wherein the floating type platform comprises a floating body structure, a stand column, a freeboard deck, a lower deck and an upper deck, a rectangular moon pool is formed in the middle of the test platform, a derrick and an electric hoist arranged on the derrick are arranged above the moon pool, the sea mooring system comprises a navy one-side anchor machine and an anchor chain, the upper deck is provided with a deck house, a starboard of the upper deck is provided with a hydraulic slewing crane, the test platform is further provided with a flow rate and flow direction meter, a master control chamber is also formed in the deck house, and a data acquisition device, 3G wireless transmission equipment, a ballast tank control face plate and a computer are arranged in the master control chamber. The novel floating type multifunctional seaborne test platform can provide the test platform located in a natural sea area for various marine scientific experiments, can provide valuable on-site experimental data for development of various fields of oceanographic engineering, and has great promotion and popularization effects on the oceanographic engineering.

Ballast water treatment apparatus and methods for preventing foreign aquatic invasive species form entering marine ecological zones by translocation in ship's ballast water. The apparatus includes a housing, a filter member, and UV water treatment chambers. Methods include use of a ship's fire hydrant system for moving ballast water from the ship's ballast tanks into the apparatus for filtration and treatment. In-port service vessels and dock-side service vehicles are equipped with the treatment and filtration apparatus to provided in-port or dock-side ballast water treatment services. Related methods are also provided.

A method of treating a ballast water for sterilizing bacteria, microorganisms or organisms in the ballast water in a hold or ballast tank of a ship, has the steps of: sterilizing the bacteria, microorganisms or organisms by adjusting a residual chlorine concentration in the ballast water to 1 mass ppm or more and 1000 mass ppm or less with a hypochlorite, and removing the residual chlorine in the ballast water with a sulfite.