210 results about "Ballast tank" patented technology

The utility model discloses an anti-corrosion sensor for monitoring corrosion of an in-service FPS0 ballast tank, which comprises a sensor shell, a waterproof cable extending into an inner cavity is arranged on the sensor shell, a silver chloride electrode is arranged at the bottom of the sensor shell, one end of the silver chloride electrode extends into the inner cavity and is electrically connected with the waterproof cable in the inner cavity, and the other end of the silver chloride electrode extends downwards. A flange plate used for sealing the inner cavity is arranged at the top end of the sensor shell, a connecting hole allowing the waterproof cable to extend out is formed in the flange plate, a first connecting part used for sealing and fixing the waterproof cable is arranged on the flange plate, and a second connecting part used for sealing and fixing the silver chloride electrode is arranged at the bottom end of the sensor shell. And the surface of the sensor shell is provided with a fixed connecting device for quickly installing the sensor shell and a rib plate on the inner wall of the ballast tank. Installation can be achieved in the offshore FPSO operation period, damage to a ship body is avoided, thermal treatment is not needed, and rapid installation and replacement can be achieved.

The utility model discloses a dispersed ballast tank structure of a culture net cage. The dispersed ballast tank structure comprises a ballast tank base platform and a net cage assembly, the ballast tank base station comprises a base station frame and a plurality of transverse trusses; the base platform frame comprises two first transverse trusses, a plurality of first longitudinal trusses, a plurality of first ballast tanks and a plurality of second ballast tanks. The base platform frame is composed of the first ballast tanks, the second ballast tanks, the transverse trusses, the first transverse trusses and the first longitudinal trusses, so that the stability of the dispersed ballast tank structure of the aquaculture net cage is improved, the four corners of the second ballast tanks form a positioning result, the good wind wave resistance is achieved, and the external force resistance is improved; according to the dispersed ballast tank structure of the aquaculture net cage, the floating state load adjusting mode of the aquaculture net cage is improved, the structure is more convenient to construct, the overall weight is reduced, the construction and operation cost is reduced, and offshore safe and efficient operation and maintenance of the aquaculture net cage are more convenient.

The present invention relates to the technical field of ballast tanks, and discloses an adjustable ballast tank, a medium mixing method thereof, and a floating offshore platform. The adjustable ballast tank includes: a plurality of medium capsules, which are nested in sequence or arranged closely together, each medium capsule having an independent medium cavity, each medium cavity being capable of storing a medium, and each medium cavity being connected to the outside world through a channel opening on the medium capsule for filling or discharging the medium. The present invention can store a variety of media by providing a plurality of medium cavities, so that the floating offshore platform can mix and use media when operating at sea, making it more convenient to obtain the media and having better economic benefits.

Disclosed is a flow-guide device for an offshore platform, comprising a flow-guide column base, a ballast level control device and a spiral side belt system, wherein the flow-guide column base is located at the bottom of an offshore platform, and multiple flow-guide column bases are arranged symmetrically and distributed in a ring array; the flow-guide column base is rotatably connected to the offshore platform; a ballast compartment is arranged in the flow-guide column base, and the ballast level control device is used for controlling a ballast level in the ballast compartment; and the spiral side belt system is arranged outside the flow-guide column base and used for restraining vortex-induced resonance. The flow-guide column base and the offshore platform can be kept in a relatively fixed state by means of a clamping device, such that the offshore platform is able to rotate synchronously with the flow-guide column base.

The present invention discloses a polyaspartic acid ester-modified epoxy resin, a non-toxic, environmentally friendly, wear-resistant, and anti-corrosion coating for ships containing the resin, as well as a preparation method and application. The structural formula of the polyaspartic acid ester-modified epoxy resin is as follows: The solvent-free, non-toxic, and anti-corrosion and anti-corrosion coating of the present invention uses the polyaspartic acid ester-modified epoxy resin as a film-forming material, can be cured at room temperature, and exhibits excellent adhesion, salt spray resistance, and media resistance. When applied to ship ballast tanks, drinking water tanks, oil and sewage tanks, and other compartments, or other metal substrate surfaces for corrosion protection, it provides excellent long-term anti-corrosion performance.

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.

A floatable foundation (100) for a wind turbine generator and / or electrical equipment (61), the foundation (100) comprising: a central column structure (10,11,12); at least three outer column members (20,21,22) disposed about the central column structure (10,11,12); at least three horizontally extending lower connection members, such as pontoon members (30,31,32), each horizontally extending lower connection member fixed to and extending between the central column structure (10,11,12) and a respective one of the at least three outer column members (20,21,22); and three horizontally extending upper connection members, such as beam members (40,41,42), each horizontally extending upper connection member fixed to and extending between the central column structure (10,11,12) and a respective one of the at least three outer column members (20,21,22), wherein each column member (20,21,22) comprises a ballast tank (81) configured for holding water ballast and the ballast tank (81) vertically spans a design waterline (91) of the respective column member (20,21,22).

The invention belongs to the technical field of liquid carbon dioxide transport ships, and particularly relates to a novel liquid carbon dioxide transport ship adopting a fiber composite liquid cargo tank. The ship comprises a main ship body. The main ship body comprises a tail module, a cabin module, a cargo compartment module and a head module. A plurality of independent cargo compartment chambers are arranged in the cargo compartment module, and the adjacent cargo compartment chambers are separated through transverse compartment walls; an independent carbon dioxide liquid cargo tank, a top ballast tank and a bottom ballast tank are arranged in each independent cargo compartment; the carbon dioxide liquid cargo tank is made of a fiber composite material or a combination of steel and the fiber composite material and comprises an inner container and a winding layer, and the cross section of the carbon dioxide liquid cargo tank is of a bilateral symmetry polygonal structure. The carbon dioxide liquid cargo tank is connected with the hull structure through supporting blocks. The liquid carbon dioxide transport ship is high in cargo hold area capacity utilization rate, high in stability and reliability and low in capacity requirement for hoisting facilities in the construction process.

The invention relates to a liftable energy self-sufficient ocean communication buoy system which comprises a buoy body. The wave energy power generation device is installed in the buoy body and used for converting wave mechanical energy into electric energy when the buoy body moves up and down along with waves; the energy storage device is electrically connected to the wave energy power generation device; the lifting system comprises a ballast tank and a mechanical lifting device; wherein the ballast tank is arranged in the buoy main body and is used for adjusting the buoyancy by adjusting the water quantity in the tank; the mechanical lifting device is fixed to an external anchoring foundation, connected to the buoy body and used for driving the buoy body to do lifting motion in water. The communication device is used for carrying out data communication in a water surface state or an underwater hidden state; and the control device is used for controlling lifting of the buoy main body and switching of communication modes of the communication device according to environmental parameters or remote instructions, and has the advantages of being high in severe sea condition resistance, high in concealment and scene adaptability, self-sufficient and stable in energy, low in operation and maintenance cost and reliable in communication function.

The disclosed relates to systems and methods for generating wave energy incorporated into the floating production, storage and offloading units, which comprises: one or more energy extraction chambers arranged on sides of a floating production, storage and offloading unit; each energy extraction chamber having a lower opening being obtained from removal of a bottom plate of the chamber to provide fluid communication between the interior of the chamber and the seawater; an upper opening made at the top of the chamber for passage of air flow; and an energy generation assembly for converting air flow from the opening into electrical energy; wherein each air chamber is obtained by widening a ballast tank in the direction opposite to the center of the unit to create a resonance condition in the chamber so that a final chamber widening width is determined based on a resonance period of interest of the chamber.

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.

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.

The present invention relates to a floating intervention vessel, an associated intervention assembly, and a facility intended for temporarily mooring itself on an offshore wind turbine platform. The vessel comprises a float (80) and a wind turbine intervention assembly carried by the float (80). The float (80) comprises a buoyant body (86) and a fastening base plate (88) protruding from the buoyant body (86) along a fastening axis (A-A') on the underside of the offshore wind turbine platform. The buoyant body (86) defines a ballast receiving volume. The vessel comprises a ballast controller configured to control the amount of ballast received in the ballast receiving volume to raise an upper contact surface (94) of the base plate (88) and place the upper contact surface (94) in contact with the underside of the offshore wind turbine platform. The float (80) is monohulled.

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.

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.

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.

The invention relates to the technical field of ship construction, in particular to a ship cargo hold ballast tank strength test method. The method comprises the following steps: S1, determining an initial working condition of a cargo compartment section: selecting the cargo compartment section in a half-ship state as a strength test object, wherein the cargo compartment section is in a sealed state; s2, testing the strength of the second ballast tank; s3, testing the strength of the fourth ballast tank; s4, testing the strength of the first / third ballast tank; and S5, the leveling working condition of the cargo compartment section is determined. According to the invention, before the whole LNG transport ship is formed, the strength test of the ballast tank of the cargo hold is realized in advance, the decahedron stress of the cargo hold is released in advance, the forward movement of construction nodes of the containment system is ensured, and the overall construction period is shortened by 2-3 months.

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).

The present invention provides a floating wind turbine foundation, belonging to the field of offshore wind power technology, comprising a wind turbine, a column, a buoy, a truss assembly, and a mooring system. The wind turbine is fixedly connected to the top of the column. The buoys are multiple and evenly distributed around the column. The buoys are equipped with active ballast tanks for adjusting the ballast water volume of the buoys. The truss assembly is located below the sea surface and connects the buoys and the columns. The mooring system adopts catenary mooring and includes multiple mooring cables. The bottom end of each mooring cable is provided with an anchor foundation, and the anchor foundation is fixedly connected to the seabed. The floating wind turbine foundation of the present application can reduce costs, improve the movement performance of the wind turbine, and is suitable for deep sea areas.

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.

The application discloses a ship ballast water adjusting method and system based on a simulated annealing algorithm, and comprises the following steps: obtaining ship ballast tank information and the state of current ballast water, and constructing a target function according to the ballast tank information and the state of current ballast water; establishing a ballast water constraint condition for the target function; solving the target function according to the ballast water constraint condition by using the simulated annealing algorithm until an optimal solution is obtained, wherein the optimal solution is a ballast water adjusting scheme; and adjusting the current ballast water according to the ballast water adjusting scheme. The application simulates the ballast water of a ship by using the simulated annealing algorithm, utilizes the random search characteristic of the annealing algorithm, realizes the global optimization of ballast water allocation, improves the calculation efficiency of the ballast water adjusting scheme of the ship, and can adapt to different complex conditions.

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.

The application discloses a kind of multifunctional autonomous semi-submersible ship, it includes main deck, main deck includes main deck bow, main deck stern and main deck middle section;Main deck middle section is located between main deck bow and main deck stern;The side ballast tank, bottom ballast tank, power equipment room and pipe and control equipment room are equipped below main deck middle section;Power equipment room and pipe and control equipment room are equipped in the area surrounded by side ballast tank and bottom ballast tank;Control center and control room auxiliary equipment room are equipped below main deck bow and below main deck stern;Main deck bow is further equipped with front ballast tank, and main deck stern is further equipped with rear ballast tank;Main deck middle section includes upper photovoltaic panel and lower photovoltaic panel;The outer side of upper photovoltaic panel is equipped with high-temperature-resistant material layer.The application realizes the multifunctionalization and autonomy of semi-submersible ship, and the environmental protection degree is high.

A system and method for having a fuel cell wastewater balancer. The wastewater balancer includes a hydrogen tank which stores hydrogen to be consumed by a fuel cell and a ballast tank which stores wastewater produced as a biproduct of the fuel cell reaction. A controller maintains the center of gravity of an aircraft by distributing wastewater to the ballast tank as hydrogen is consumed by the fuel cell.

The invention provides an anti-shaking honeycomb structure device with an array heterogeneous wettability boundary and application, a large number of regularly arranged honeycomb anti-shaking units are spliced to form an array platform, and the surface of the inner wall of each anti-shaking unit is processed into a uniformly distributed zigzag notch structure; a plurality of groups of heterogeneous wettability areas are arranged on the surfaces of the sawtooth-shaped notch structures at intervals in the height direction, a shaking liquid level is changed into a calm liquid level after flowing through the shaking-restraining honeycomb structure device, and in the process, the inner wall of each shaking-restraining unit in the shaking-restraining honeycomb structure device is provided with a specially-designed array type heterogeneous wettability boundary and a microstructure; pinning-cutting-dissipation of liquid shaking is achieved through the synergistic effect, and therefore the liquid stabilizing effect on the shaking liquid level is achieved. The device can be applied to the oscillation suppression of propellants of aircraft fuel tanks, the oscillation suppression of corrosive chemicals in the transportation process of chemical storage tanks and ballast tanks of marine floating platforms, the liquid level amplitude and the impact pressure peak value on the tank wall can be greatly reduced, and the load of the tank body structure is not increased.

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.

The utility model discloses a novel fuel supply ship which comprises a ship body, a cargo oil tank set located in the middle of the ship body is arranged in the ship body, the cargo oil tank set comprises a plurality of cargo oil tank bodies which are independent of one another and arranged in a matrix mode, a first ballast tank set is arranged between the cargo oil tank set and an outer plate of the ship body, and a methanol fuel tank is arranged at the rear end of the cargo oil tank set. A cargo oil pump cabin is arranged at the rear end of the methanol fuel cabin, a cabin is arranged at the rear end of the cargo oil pump cabin, a second ballast tank set is arranged at the rear end of the cabin, a side pushing cabin is arranged at the front end of the cargo oil tank set, and a fore peak tank is arranged at the front end of the side pushing cabin. Compared with the prior art, the fuel supply ship is provided with the multiple cargo oil tank bodies, various different fuels including but not limited to heavy oil, diesel oil, gasoline, methanol, biodiesel and the like can be loaded at the same time, the problem that in the prior art, applicability is poor is solved, and the fuel supply ship has high applicability.

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.

The detachable protection ramp of the deck pipe valve comprises a ramp body and a supporting base, the supporting base is fixedly connected with a deck, the ramp body is provided with a straight section and ramp sections located on the two sides of the straight section, the lower end of the straight section is detachably connected with the supporting base, and the deck pipe valve is located under the straight section. According to the detachable protection ramp of the deck pipe valve, on the premise that a ballast tank is not damaged, the requirement for protection of a pipeline system is met, and meanwhile later-period repair, maintenance and replacement are taken into consideration. And various use requirements such as pushing the rolling barrel by sailors in the later period can be met. The detachable pipeline protection ramp is simple in structure, low in construction cost, high in safety and strong in protection measure.

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.