85results about "Buoyancy means" patented technology

A floating body for an offshore wind turbine includes: one first column; two second columns; two lower hulls connecting the first column to each of the second columns; and a beam member connecting the two lower hulls. The beam member is disposed within a height range between an upper surface and a lower surface of each lower hull.

The present disclosure provides a cleaning device and a cleaning device system. The cleaning device includes a cleaning device body. The cleaning device body includes a filtering mechanism, a drive mechanism, an adjustment assembly, a moving assembly, and a propulsion assembly. The filtering mechanism is at least partially disposed inside the cleaning device body. The drive mechanism is configured to generate a suction force to drive liquid to flow through the at least one filtering mechanism. The adjustment assembly is configured to adjust an action force applied to the cleaning device in a first direction or a second direction, so that the cleaning device is switched between a first motion state and a third motion state. The moving assembly is disposed at the bottom of the cleaning device body and configured to drive the cleaning device to move on a to-be-cleaned surface. The propulsion assembly is configured to drive the cleaning device to move away from the to-be-cleaned surface. The cleaning device can be switched between the first motion state and the third motion state to perform underwater cleaning and water surface cleaning to meet different use requirements.

A swimming pool robot and a method for controlling a swimming pool robot are disclosed. The swimming pool robot includes a liquid intake portion including at least a first intake and a second intake. During a process of switching the swimming pool robot from a first motion state to a third motion state, the swimming pool robot is first switched from the first motion state to a second motion state and subsequently switched from the second motion state to the third motion state. No matter whether when the swimming pool robot is in the first motion state or when the swimming pool robot is in the third motion state, the first intake faces a bottom of a swimming pool, and / or a posture of the swimming pool robot in the first motion state is substantially identical to the posture of the swimming pool robot in the third motion state.

The present disclosure provides a pool cleaning robot, comprising a dust box and a mode switching member configured to achieve a position switching between above the water surface and below the water surface, wherein the mode switching member comprises: a buoyancy cavity and a buoyancy force adjustment member, and configured to adjust buoyancy magnitude of the pool cleaning robot; and a first propeller, configured to adjust a first drive force which is opposite to a first preset direction; and wherein the position switching between above the water surface and below the water surface at least comprises: the pool cleaning robot moves to a position close to the water surface based on the first drive force generated by the first propeller; and the buoyancy force adjustment member increase a volume of gas in the cavity.

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 invention describes a wind turbine vessel (1) which autonomously sails at high sea by means of wind turbines (2) and produces, stores and transports energy. The wind turbine vessel (1) is a multi-hull vessel having three or more hulls (3), between which at least one wind turbine (2) is installed. The hulls (3) are installed rotationally symmetrically parallel to the longitudinal axis of the wind turbine vessel (1). This makes it possible for the wind turbine vessel (1) to pivot, that is to say to rotate about its own longitudinal axis, in order to be resilient in the case of sea storms. In the event that it capsizes in strong winds or waves, it retains its complete structural and functional integrity as a result of its rotationally symmetrical design. The wind turbines (2) are used simultaneously in two ways. Firstly, they are used for the production of electrical energy which is stored on board in the hulls (3), for example in batteries or with power-to-hydrogen. Secondly, the wind turbines (2) are used as sails for driving and controlling the wind turbine vessel (1) by means of yawing movements. It can thus sail autonomously at high sea in areas in which the wind conditions are favourable for energy production, that is to say it can use stronger and more uniform winds, and transport the energy stored on board to a location where it can be fed into the energy grid.

The present application relates to a wind turbine foundation, a wind turbine generator system and a control method. The wind turbine foundation is capable of being arranged in seawater and configured to support a tower, wherein the wind turbine foundation includes: floating bodies, wherein a number of the floating bodies is n, the floating bodies are arranged at intervals from each other, and lines connecting centers of the floating bodies form a polygon as a whole, where n≥3; connecting bodies, wherein a corresponding one of the connecting bodies is connected between every two adjacent floating bodies; wherein each of the floating bodies has a static chamber and a dynamic chamber that are independently arranged, a first medium is enclosed within the static chamber, each of the floating bodies is provided with a first opening connected to the dynamic chamber and a first control valve, and the first control valve controls opening and closing of the first opening to adjust a volume of the seawater entering the dynamic chamber. According to the wind turbine foundation, wind turbine generator system and control method provided in the embodiments of the present application, the wind turbine foundation has a fast response speed and a good stability effect.

The invention describes a wind turbine vessel (1) which autonomously sails at high sea by means of wind turbines (2) and produces, stores and transports energy. The wind turbine vessel (1) is a multi-hull vessel having three or more hulls (3), between which at least one wind turbine (2) is installed. The hulls (3) are installed rotationally symmetrically parallel to the longitudinal axis of the wind turbine vessel (1). This makes it possible for the wind turbine vessel (1) to pivot, that is to say to rotate about its own longitudinal axis, in order to be resilient in the case of sea storms. In the event that it capsizes in strong winds or waves, it retains its complete structural and functional integrity as a result of its rotationally symmetrical design. The wind turbines (2) are used simultaneously in two ways. Firstly, they are used for the production of electrical energy which is stored on board in the hulls (3), for example in batteries or with power-to-hydrogen. Secondly, the wind turbines (2) are used as sails for driving and controlling the wind turbine vessel (1) by means of yawing movements. It can thus sail autonomously at high sea in areas in which the wind conditions are favourable for energy production, that is to say it can use stronger and more uniform winds, and transport the energy stored on board to a location where it can be fed into the energy grid.

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.

Water buoys sense water characteristics and wirelessly transfer the water characteristics for delivery to a computer system. The computer system receives the water characteristics wirelessly transferred by the water buoys. The computer system receives a location and a user water condition preference transferred by a user communication device. The computer system processes the water characteristics, the location, and the user water condition preference, and in response, generates and transfers water condition information for the location for delivery to the user communication device.

The invention describes a barge for assembly of a floating support structure (1) comprising a lower buoyancy section (2) with a lower buoyancy volume VL and a working deck (3) comprising support elements (4) for receiving parts of the floating support structure to be assembled. The barge further comprises a ballasting system (7) for lowering and elevating the barge (1). The barge is characterized by a divisional section (6) holding the lower buoyancy section (2) and the working deck (3) in a vertical distance from each other and having a divisional buoyancy volume VD considerably smaller than lower buoyancy volume VL, such that the ballasting system, by pumping a quantity of water equal to VD in or out, is able to move the barge (1) between a lower position with a bottom side of the working deck (3) in the waterline, and an upper position with the top side of the lower buoyancy section (2) in the waterline.

A variable buoyancy platform including a support frame having a plurality of bottom pontoons fixedly mounted to a bottom side thereof. Each bottom pontoon includes at least an opening disposed in a bottom portion thereof and at least a bottom pontoon air conduit port disposed in a top portion thereof. A plurality of top pontoons are fixedly mounted to a top side of the support frame. Each top pontoon includes at least an opening disposed in a bottom portion thereof and at least a top pontoon air conduit port disposed in a top portion thereof. A bottom air supply conduit system is connected to the at least a bottom pontoon air conduit port of each bottom pontoon. The bottom air supply conduit system includes at least an air supply valve for controlling air flow therethrough and a connector adapted for being connected to a pressurized air supply. At least a top pontoon air valve is connected to the at least a top pontoon air conduit port of each top pontoon. The at least a top pontoon air valve enables controlling ambient air flow therethrough.

The invention pertains to fabrication of gravity-based structures (GBS) and can be used as part of development of various kinds of near-shore and offshore production (including natural gas liquefaction, ammonia, methanol, hydrogen production, and power generation), transportation, transshipment, and storage facilities. The GBS production method is as follows: a reinforcement cage is assembled for a rectangular base slab, formwork is installed and the base slab is then concreted. As separate sections of the base slab are concreted, reinforcement cages for inner and outer walls are assembled and concreted by slipforming. As separate wall sections are concreted, a reinforcement cage for a top slab is assembled, formwork is installed and then the top slab is concreted and the top slab and base slab, as well as inner and outer walls are post-tensioned with reinforcement strands. The feature of the method is that GBS is fabricated, including a central part and protruding part that have a common base slab. The inner and outer walls as well as the top slab are concreted for the central part of GBS, that takes form of a rectangular prism. As separate sections of outer walls of the central part are concreted, a reinforcement cage is assembled, formwork is installed and concreting is performed for inner and outer walls of the GBS protruding part, the outer walls of which are made along the perimeter of the base slab, and at the same time the height of the outer walls of the protruding part is lower than the height of the outer walls of the central part. As separate wall sections of the protruding part are concreted, a reinforcement cage is assembled and formwork is installed for a top slab of the protruding part and then concreted. The base and top slabs of the central part, as well as the inner and outer walls of the central part and protruding part are post-tensioned as the top slabs of the central part and protruding part are concreted and the concrete of the post-tensioned structures is cured. A protruding part adds to buoyancy of the GBS and the entire structure, as well as reduces its submersion during transportation to an installation site.

The present invention a buoyant actuator (11) for use in a system which converts wave motion to energy. The buoyant actuator (11) comprises a body (19) which presents an exterior surface. The body (19) provides at least one first tank (23) and at least one second tank (25), whereby an upper portion (21) of the body (19) is located above a fluid surface (12) of a fluid body (13) when the buoyant actuator is in a transportation position. When in the transportation position a volume of each of the at least one first tank (23) and the at least one second tank (25) above a waterline (112) of the buoyant actuator (11) is substantially empty.

A floating area consisting of a semi-rigid floating structure, capable of following the ups and downs of the waves. It can be located close to the shore as well as in high seas, carrying a rigid structure, which acts like a bridge between the waves and provides a substantially stable surface for mounting structures for human activities, which remains above the water level. The floating area can be mechanically fixed in position by propellers that compensate for current and / or wind movements, by underwater weights attached to the rigid structure, or by ground posts attached to the rigid structure, so that the vertical degree of freedom of movement follows the movements of the waves or tides.

This invention relates to nearshore solutions comprising: a plurality of bottom sittinginfrastructure modules defining a boundary of the nearshore solution, and forming a lagoon;each of the plurality of bottom sitting infrastructure modules is adapted to transfer loads ofthe bottom sitting infrastructure modules to a seabed and withstand surrounding waterpressure. The nearshore solutions further comprise general purpose modules which canbe either bottom sitting or floating as well as the floating infrastructure modules arearranged within the boundary or seawall. Floating infrastructure module is designed to allowlighter infrastructure services, and for transport network such as vehicles to travel throughor park connectors. General purpose modules are designed for live, work, play; toaccommodate residential, office and recreational facilities, etc. The bottom sitting generalpurpose modules are designed to cater for heavier topside structures and the floatinggeneral purpose modules to cater for higher topside structures.

A lightweight, efficient, autonomous sub-surface water data profiler (10) that can be easily programmed and deployed to collect sample data at a variety of water depths is disclosed. The profiler is a unique, simple-to-use, low-cost design with a low-cost depth control system that allows several dive / surface trips, an Android graphical interface for Bluetooth programming and a deployable antenna for retrieval after completing its mission. The collected data is achieved using an open-source Android interface and Bluetooth programming using Android and longer-range radio communications with a deployable antenna. The profiler is usable by anyone with a deep pond, lake, ocean or even a pool that they would like to monitor.

Described is a multi-use offshore structure having a first configuration and a second configuration. The first configuration includes a pontoon base disposed at a lower end of the multi-use offshore structure. A deck is disposed at an upper end of the multi-use offshore structure, and hull column structures extend between the pontoon base and the deck. The second configuration includes the pontoon base, the deck, and the hull column structures of the first configuration. A set of sponsons is formed to be installed on the hull column structures, and a deck expansion unit is connectable with the deck.

To improve fuel consumption when the attitude of a ship is made to reach a target angle.SOLUTION: There are provided: two propulsion generation devices 113L and 113R provided on both sides of a hull; a helm 115 for controlling turning of the hull; a turning command acquisition part 103 for acquiring a turning command value including a turning direction and a turning amount; a speed acquisition part 107 for acquiring a speed command value of the hull; and a turning control part 111 for controlling the two propulsion generation devices 113L and 113R so that the helm 115 is at a neutral position, and propulsion of the propulsion generation devices 113L and 113R inside in the turning direction becomes smaller than propulsion of the propulsion generation devices 113L and 113R outside in the turning direction when the speed command value acquired by the speed acquisition part 107 is equal to or higher than a speed threshold, and turning a ship according to the turning command value.SELECTED DRAWING: Figure 1

Floating offshore support structure for a wind turbine and method of operating the same using adjustable ballast tanks. A semi-submersible offshore support structure (3) for a wind turbine (2) supports adjustable ballast tanks (13) above the sea surface that can be filled with water (16) in order to provide an additional load to a part of the support structure. By adjusting the volume of water (16) in the adjustable ballast tanks (13), the wind turbine (2) can be maintained in a vertical orientation despite the wind pressure. A drain pipe (24) is provided to drain water from the tanks (13) to the sea by gravity only to passively empty the tanks (13) in case of a power failure.

The invention relates to a solar system for providing a photovoltaic system on a body of water, comprising a support structure, a buoyancy device and a photovoltaic device, wherein the buoyancy device and the photovoltaic device are connected to one another by means of the support structure, the support structure is held in a floating position of the buoyancy device with a hydrostatic buoyancy of the buoyancy device on a water surface of the body of water, and the support structure accommodates the photovoltaic device in the floating position of the buoyancy device above the water surface for generating electrical energy from sunlight, wherein the buoyancy device has a buoyancy adjustment device for changing the hydrostatic buoyancy,Wherein, when the hydrostatic buoyancy is reduced by means of the buoyancy adjustment device, it is possible to lower the solar system, and in particular the photovoltaic device, into a submerged position below the water surface. Furthermore, the invention relates to a method for reversibly protecting a photovoltaic system.

A semi-submersible floating structure providing a rotatable or extendable solar panel array giving quadruple the solar collecting area compared to the supporting structure. The solar panels are deployed and retracted by either electric motors, or with the aid of ballast tanks which are filled and emptied in sequence. The panels can be retracted when severe offshore weather conditions are encountered. A hydrogen generation plant based on an electrolysis system is also provided with a compression offtake or power generated is directly stored in battery energy storage system.

This application discloses an underwater vehicle recovery device based on a floating bladder cable delivery device, which relates to the field of positioning and recovery. The device comprises an end cap, a floating bladder, and a gas cylinder. The end cap is connected to a hollow cylinder, which is connected to the vehicle. The end cap is connected to the outside of the cylinder via a connecting device. The cylinder has a through hole. The gas cylinder is connected to the side of the end cap facing the center of the cylinder and inserted into the cylinder through the through hole. The floating bladder is sleeved on the outside of the gas cylinder. A breaking device is also connected to the side of the end cap facing the cylinder to break the connecting device and cause the end cap to eject the gas cylinder and floating bladder from the through hole. The end cap is connected to the inner wall of the cylinder via a cable, ensuring that the supercavitating vehicle can be recovered quickly, efficiently, and at low cost.

The present disclosure provides a cleaning device and a cleaning device system. The cleaning device includes a cleaning device body. The cleaning device body includes a filtering mechanism, a drive mechanism, an adjustment assembly, a moving assembly, and a propulsion assembly. The filtering mechanism is at least partially disposed inside the cleaning device body. The drive mechanism is configured to generate a suction force to drive liquid to flow through the at least one filtering mechanism. The adjustment assembly is configured to adjust an action force applied to the cleaning device in a first direction or a second direction, so that the cleaning device is switched between a first motion state and a third motion state. The moving assembly is disposed at the bottom of the cleaning device body and configured to drive the cleaning device to move on a to-be-cleaned surface. The propulsion assembly is configured to drive the cleaning device to move away from the to-be-cleaned surface. The cleaning device can be switched between the first motion state and the third motion state to perform underwater cleaning and water surface cleaning to meet different use requirements.

The present disclosure provides a cleaning device and a cleaning device system. The cleaning device includes a cleaning device body including a filtering mechanism; a drive mechanism configured to generate a suction force to drive liquid to flow through the filtering mechanism and including at least a main water pump motor; a moving assembly configured to drive the cleaning device to move on a to-be-cleaned surface and including at least a movement drive motor; and a first sealed cavity configured to accommodate at least the main water pump motor and the movement drive motor. The filtering mechanism is disposed in front of the first sealed cavity along a forward direction in which the cleaning device performs cleaning. The cleaning device body further includes: a buoyancy adjustment assembly configured to at least implement switching of the cleaning device from a second motion state to a third motion state.

The present invention discloses a floating fan foundation, a floating fan, a typhoon protection method and a wind power generation method. The floating fan foundation includes a tower foundation, a plurality of floats installed around the tower foundation, and a telescopic expansion mechanism, each float corresponds to one telescopic expansion mechanism, the telescopic expansion mechanism includes a hydraulic jack and a folding hinge, both ends of the hydraulic jack are hinged to the tower foundation and the float respectively, the folding hinge includes a plurality of mutually hinged folding arms, and both ends of the folding hinge are hinged to the tower foundation and the float respectively. The floating fan foundation provided by the present invention can improve the connection stability between the float and the tower foundation through the folding hinge, and can realize the deployment and expansion of the float through the extension and contraction of the hydraulic jack, which can meet the demands of typhoon protection while reducing the redundancy of the floating fan foundation and reducing the manufacturing cost of the wind power generation unit, compared with the conventional floating foundation.

A marine boom system includes at least one HDPE marine boom with an axial passage for mounting on a chain and a chain stop. The boom includes a shell defining a cavity with watertight caps having central apertures on the ends. An axial passageway pipe is disposed longitudinally along a center axis, and extends through the apertures and beyond the ends of the shell. A floatation billet is disposed within the shell. A chain is disposed in the axial passageway pipe and extends beyond the ends of the axial passageway pipe. The stop including at least one assembly piece may be fastened to the chain and disposed within an end of the pipe. The assembly piece includes a semi-cylindrical main body with passageway formed therein and has a protrusion about one passageway and a recess about another. A flange and a link saddle extend from the main body.

The present disclosure provides a pool cleaning robot, including: a dust box including a dust box opening. The dust box opening includes: an in-water dust box opening provided on a bottom of the dust box. A process of switching the pool cleaning robot from moving on a bottom wall of a pool to floating on a liquid surface includes at least the following: the pool cleaning robot is first switched from moving on the bottom wall of the pool to moving on a side wall of the pool, and the pool cleaning robot subsequently moves on the side wall of the pool toward the liquid surface; and when the pool cleaning robot moves close to the liquid surface or at least partially above the liquid surface, the pool cleaning robot is switched from being against the side wall of the pool to floating on the liquid surface.

Described herein are examples of buoyancy supplements. A buoyancy supplement may include a system including a front flotation portion including a front deck having a front surface, a rear flotation portion including a rear deck having a rear surface. One or both front and rear surfaces having an accessory attachment point, a through-hole substantially parallel to the front or rear surface, a mounting apparatus, a tie-down anchor, and a first and second runner each having a first end configured to attach to the front flotation portion and a second end configured to attach to the rear flotation portion. The front flotation portion and the rear flotation portion may be configured to attach to a float tube.