93 results about "Marine current energy" patented technology

The invention relates to a device and a method for magnetic power generation and vortex-induced vibration suppression of imitating the swimming, turning and swinging of a fish. The device is composedof a main body module and a flank module. The main body module comprises a flow facing snap ring, an inner groove snap ring, a rotary bearing, a strip magnet, an embedded magnet wire type water stop plate and a fishtail swing plate. The flank module comprises a swing arm, a semi-cylinder magnet and an orifice plate. According to the device for magnetic power generation and vortex-induced vibrationsuppression of imitating the swimming, turning and swinging of the fish, under the common action that the semi-cylinder magnet and the swing arm slide and reciprocate, the orifice plate breaks the coming flow, the fishtail swing plate breaks the tail vortex street, and the embedded magnet wire type water stop plate divides the flow space and adjusts the flow direction, the formation and development of the vortex are suppressed, and the vortex-induced vibration suppression without energy consumption is achieved; and an induced current is generated in the circuit formed by induction wires, so that the conversion of marine current energy is achieved while the vortex-induced vibration is suppressed.

A hydroelectricity generating unit capturing marine wave energy and marine current energy is completed with a buoyant floating frame, a plurality of electric generating pontoons, and a floating frame mooring system. The buoyant floating frame is positioned underneath water and connected with a seabed by the floating frame mooring system and connected with the plurality of electric generating pontoons by a plurality of pontoon mooring systems. The buoyant floating frame includes marine current electric generating units which are rotatably connected within the buoyant floating frame and utilize the marine current energy to produce electricity. The plurality of electric generating pontoons also produces additional electricity by the flowing marine wave energy and marine current energy. A power farm can be constructed with multiple hydroelectricity generating units, where the multiple hydroelectricity generating units are interconnected with each other through a horizontal mooring system in order to provide additional stability.

The invention discloses an offshore wind and ocean current energy storage power generation system realized by utilizing hydraulic transmission and belongs to the technical field of renewable energy power generation. The offshore wind and ocean current energy storage power generation system comprises a wind energy and ocean current energy acquisition and conversion system, a hydraulic system, an energy storage device, a power generation system and a detection control system, wherein the wind energy and ocean current energy acquisition and conversion system is connected with the hydraulic system through a wind energy coupler (27) and an ocean current energy coupler (4); the hydraulic system is connected with the power generation system through a coupler (13); and the energy storage device is connected with the hydraulic system through an electromagnetic directional valve (8). By the system, the problem that the energy transfer direction is changed due to change of wind direction and flow direction is solved by utilizing the hydraulic transmission and energy storage technologies on the basis of power generation technology of fully integrating two renewable resources, namely the wind energy and ocean current energy, and the aim of continuously and stably generating power at constant frequency by employing random and intermittent wind energy and ocean current energy is fulfilled.

The invention discloses an ocean current generation based distributed acoustic observation system, the lower end of a main floating body of the system is connected with a multiconductor cable and a bearing steel cable, a floating ball group is added on the middle position of the bearing steel cable, the lower end of the bearing steel cable is connected with an acoustic release transponder, the lowend of the acoustic release transponder is tied with a gravity anchor, and multiple groups of data acquisition and processing units and an ocean current energy generator are respectively connected onthe bearing steel cable in a clamping way through a fastening piece. Each group of the data acquisition and processing unit comprises eight self-capacitance single channel acoustic acquisition instruments, one self-capacitance temperature and depth measurement instrument and one self-capacitance conductivity temperature depth measurement instrument to measure the ocean parameters like seawater temperature, conductivity, depth, and sea noise. The self-capacitance single channel acoustic acquisition instrument and the ocean current energy generator are respectively connected with a multiconductor cable through a watertight connector. The system uses ocean current energy to generate electricity, the electricity is supplied to equipment, and due to the adoption of an underwater minitype collector, each measurement instrument independently acquires, processes and stores information, so that the system can observe underwater for a long period of time.

The invention discloses a fresh water supply station making use of ocean current energy, and belongs to the technical field of ocean renewable energy technology. The fresh water supply station, in accordance with ocean current and tidal current distribution, is formed as a corresponding ocean area distributed fresh water supply station so as to supply fresh water to ocean ships and islands. The fresh water supply station, in accordance with local ocean current energy situations, is provided with multiple sets of ocean current energy seawater desalting devices; seawater, which is pressurized by virtue of the ocean current energy, is desalted and the generated fresh water is kept in an upper space of a caisson and is conveyed to the ships, and rest energy is comprehensively utilized so as to offer required electric energy and other power to a system; and a lower space of the caisson is filled with the seawater, the caisson integrally serves as a basic platform of the fresh water supply station, and the ocean current energy seawater desalting device is arranged on the basic platform.

The invention discloses a floating-type integrated power generation device capable of comprehensively using renewable energy sources at sea, and relates to the fields of methods and devices for generating power through solar chimney hot air flow, wind power, marine current energy, solar photovoltaic energy and fuel cells. The device comprises a marine current energy power generation unit, a standcolumn body, a platform layer, a heat collecting shed, a solar chimney and a vertical axial fan. The device can achieve comprehensive use of multiple renewable energy sources and has the following advantages that firstly, the stand column body and the marine current energy power generation unit are combined, therefore, stable utilization of marine current energy is facilitated, and the cost of constructing marine current energy power generation facilities is reduced; secondly, solar chimney power generation and wind power generation are combined, the two modes complement each other, and therefore the cost of constructing wind power tower frames is reduced; and thirdly, solar chimney power generation and fuel cell waste heat power generation are combined, therefore, resources are saved, theefficiency of fuel cells is improved, the air heating speed is improved, and the area of the solar chimney power generation heat collecting shed is decreased.

The invention provides a floating type base integrated power generation device for ocean energy comprehensive utilization. The floating type base integrated power generation device for ocean energy comprehensive utilization comprises a wind energy and wave energy combined power generation system, an ocean current energy combined power generation system and a pile foundation. The wind energy and wave energy combined power generation system comprises an outer support column and a center magnet. The center magnet is a cylinder and vertically penetrates through the outer support column of the windenergy and wave energy combined power generation system. The lower portion of the center magnet is connected with the ocean current energy combined power generation system through a middle support column. The center magnet communicates with the interior of the middle support column. The pile foundation is located below the ocean current energy combined power generation system. The wind energy andwave energy combined power generation system is located above the water line, and the ocean current energy combined power generation system and the pile foundation are located below the water line. According to the floating type base integrated power generation device, multiple kinds of new energy can be combined, the ocean current energy, the wave energy and the wind energy can be utilized for power generation at the same time, meanwhile, an ocean current energy utilization manner is added, energy saving and environment protection are achieved, and very high anti-impact capability is achieved.

The invention discloses a power generation device capable of comprehensively utilizing wave energy and ocean current energy. The power generation device comprises a floater, a differential integrationmechanism, an ocean current energy collecting mechanism, a wave energy collecting mechanism and a power generation mechanism, wherein the floater floats on the water surface, the power generation mechanism is arranged in the floater, the ocean current energy collecting mechanism and the wave energy collecting mechanism are sequentially arranged below the floater, the bottom of the floater is provided with a shell used for installing the differential integration mechanism, the ocean current energy collecting mechanism and the wave energy collecting mechanism collect mechanical energy, the mechanical energy is integrated through the differential integration mechanism and then is transmitted to the power generation mechanism for power generation, the ocean current energy collection mechanismcomprises a ocean current energy power shaft, a support frame and an one-way circulation surface, wherein the ocean current energy power shaft is mounted on the lower part of the shell through a bearing in a supporting mode, and the ocean current energy power shaft is a hollow shaft for allowing the wave energy collecting mechanism to transfer power from the ocean current energy power shaft. According to the power generation device, the wave energy and ocean current energy in the ocean are comprehensively utilized, and the problems of single working mode and low energy utilization rate of a traditional offshore power generation device are solved.

The invention discloses a dual impeller closed type loop hydraulic transmission control ocean current energy power generation device and a control method thereof. An ocean current energy manner is adopted for driving a first impeller device and a second impeller device which are mounted in parallel, and the output ends of the first impeller device and the second impeller device are connected withcorresponding electric generators through a pump end spindle, a variable hydraulic pump, a pump variable mechanism, an energy accumulator, a variable hydraulic motor and a motor end spindle, the variable hydraulic pump, the variable hydraulic motor and the energy accumulator form a closed type system, and are connected with a closed loop control system, the closed loop control system is used for receiving the rotating speed of the pump end spindle, the closed loop control system is connected with an ocean current energy speed measuring impeller device and used for receiving an ocean current energy flow speed signal, and through control, displacements of the variable hydraulic pump and the variable hydraulic motor are adjusted. The inexhaustible ocean current energy is used for power generation, and through the off-network running mode, continuous energy supply is provided for remote island and remote water area power supply, underwater power equipment like an underwater vehicle and thelike.

The invention relates to an ocean energy device integrating an observation buoy and a wave power generation system. The ocean energy device integrating the observation buoy and the wave power generation system is characterized in that the wave power generation system is mounted on an ocean energy device body, a tidal current power generation system is mounted below the wave power generation system, and a seabed anchoring system is mounted at the bottom of the tidal current power generation system. An observation platform of a wave floater is installed on the wave power generation system, the wave floater is installed on the wave power generation system, and a wave energy collection module is installed on the wave floater. The device has the advantages that an own mature technology is adopted, power supply requirements of marine observation buoys and beacon lights are met, low-flow-speed ocean current energy miniaturized power generation equipment and a multi-degree-of-freedom wave energy power generation system are combined, the wave power generation system is integrally combined and designed, cross-water-layer ocean energy comprehensive collection and utilization are achieved. According to the device, an ocean energy power generation technology and ocean instrument equipment power supply are combined, the intermediate link of converting technical achievements into productivityis accelerated, and ocean energy technology industrialization is promoted.

The invention provides an ocean buoy utilizing solar energy, wind energy and ocean current energy for complementary power generation and energy supply and a method. The ocean buoy comprises an overwater platform, an underwater platform, a connecting piece, a wind turbine, a solar panel and a water-turbine generator set, the overwater platform and the underwater platform are connected through the connecting piece, the wind turbine and the solar panel are installed on the overwater platform, the water-turbine generator set is located in the underwater platform, the underwater platform floats in water to support the overwater platform in the upper portion of the water surface, and electric energy generated by the wind turbine, the solar panel and the water-turbine generator set is conveyed to a storage battery in the storage battery cabin to be stored or directly conveyed to various observation devices carried by the ocean buoy. The buoy overcomes the problems of easy observation interruption, unstable structure and easy damage caused by unstable power supply of the original buoy, and has the characteristics of simple structure, formation of complementary power generation, uninterrupted power supply, improvement of long-term stable observation performance of observation equipment, high structural strength, good stability and difficulty in damage.

The invention provides a blade automatic opening and closing type marine current energy power generating set. The marine current energy power generating set comprises a blade mechanism, a central rotating body and a support base in which a cabin is arranged, wherein the blade mechanism comprises blade mounting shafts fixedly connected to the central rotating body, the mounting shafts are of a hollow cylindrical structure, and two pieces of blades capable of opening and closing are separately arranged on each mounting shaft; the outermost ends of the mounting shafts are provided with limiting components for limiting the blades to axially slide; sliding rods for controlling the opening and closing of the blades are arranged in the mounting shafts, one ends of the sliding rods control the opening and closing of the blades through opening and closing mechanisms, and the other ends of the sliding rods are connected with a crank connecting rod of the central rotating body; the central rotating body is provided with two pairs of meshing gears and a crank connecting rod mechanism; the central rotating body comprises a rotating shaft fixedly connected with the central rotating body, and the rotating shaft is coaxially connected with a motor in the support base; and the support base is provided with a mounting position for fixedly connecting an internal meshing gear wheels and a groove matched with the central rotating body, and the bottom end of the support base is fixedly connected with a base. In the rotating process, the blades can make periodical opening and closing motion and continuously provide power for the motor.

The invention relates to an ocean current generation flotation device. The ocean current generation flotation device comprises a direction adjusting pillar, a platform and at least three sets of positioning devices; an ocean current generating set is arranged and fixed at the bottom end of the direction adjusting pillar; the direction adjusting pillar can take the circumferential rotating motion along the circumferential direction; the positioning device comprises a positioning pillar, a clamping device and a water pumping device; a hollow water storage cavity is formed inside each positioning pillar; the top of each positioning pillar is provided with a water injection hole; the water injection holes are connected with the corresponding water pumping devices arranged on the platform by pipelines; each positioning pillar sequentially penetrates through the corresponding clamping device and the platform; each positioning pillar can take the linear motion along the axial direction. The ocean current generation flotation device regulates the horizontal working state of the ocean current generating set by regulating displacement of each positioning pillar along the axial direction; the positioning pillars are chained with anchorage piers by anchor chains; the ocean current generating set can have a stable working environment. Meanwhile, by regulating the direction adjusting pillar to enable the incident flow face of an impeller of the ocean current generating set to be vertical to the flow direction of seawater, the energy utilization rate of ocean current energy is improved.

The invention provides an underwater cylindrical bluff body Karman vortex street power generation device which comprises a cylindrical bluff body, an annular rack, an upper rotating ring, a lower rotating ring, an upper connecting plate, a lower connecting plate, a limiting stopper, a wake flow plate, a rotating body, a rack, a power generator and a shaft seal. When an ocean current flows through the bluff body, the ocean current generates vortexes which fall off alternately on the two sides of the bluff body, and the shedding vortexes on the two sides interact with each other to form Karman vortex street periodic alternating transverse force. According to the underwater cylindrical bluff body Karman vortex street power generation device, a three-stage vortex shedding energy recovery device is arranged in a vortex shedding formation area, so that the purpose of recovering vortex shedding energy step by step is achieved, the vortex shedding energy is fully utilized before the vortex shedding strength is obviously weakened, and the recovery efficiency of ocean current energy is improved. In addition, the underwater cylindrical bluff body Karman vortex street power generation device can adapt to the ocean current direction through the wake flow plate for position adjustment, so that energy of vortex shedding transverse force is captured in all directions, and the ocean current energy utilization rate of the underwater cylindrical bluff body Karman vortex street power generation device is further improved.

The invention discloses an empennage type ocean current energy flow-induced vibration bidirectional rocking power transmission device which comprises a fixed frame, a flow-induced vibration plate andclutches, a through shaft is arranged in the flow-induced vibration plate, and the clutches are arranged at the two ends of the through shaft; and the clutch is connected with the generator structurethrough a transmission structure. The flow-induced vibration plate is selected as the streaming bluff body, when ocean current bypasses the bluff body, the vibration plate swings in two directions, the resistance borne by the plate in water flow is small, the surface of the plate is provided with the anti-corrosion coating, corrosion to the plate can be reduced, and the underwater service life ofthe device is guaranteed. The overrunning clutch is added, no matter the vibrating plate rotates clockwise or anticlockwise, the clutch can rotate to drive a generator coil to cut a magnetic inductionline to generate electricity, it is guaranteed that when the plate works underwater, no matter the plate swings clockwise or anticlockwise, the clutch can rotate along with the plate, and therefore ocean current energy can be captured to a greater extent, and greater energy is obtained.

The invention relates to the technical field of ocean energy power generation, and discloses a frequency-increasing micro-vibration ocean current energy friction nanometer generator which comprises a shell, a power management system and at least one power generation set, the shell is provided with a water inlet and a water outlet, each power generation set comprises a supporting cylinder, a first elastic part and at least one power generation unit, wherein the supporting cylinder is connected with the inner wall of the shell through the first elastic part, the power generation unit comprises a folding plate and a second elastic part, one end of the folding plate is connected to the inner wall of the supporting cylinder, the other end of the folding plate is connected with the inner wall of the supporting cylinder through the second elastic part, the folding plate is of a foldable or unfoldable structure formed by connecting a plurality of plate bodies end to end, a first friction piece and a second friction piece are arranged on the side faces, making contact with each other, of every two adjacent plate bodies when the two adjacent plate bodies are overlapped, a dielectric film is arranged on each second friction piece, the second friction pieces are electrically connected with the power management system, vibration can be generated through waves and can also be generated through flowing of ocean currents, the utilization rate of ocean current energy is increased, and effective collection of ocean current energy is realized.

The invention discloses a floating type ocean energy power generation device, and relates to the technical field of ocean energy. The floating type ocean energy power generation device comprises a fixed top plate, wherein fixed columns are fixedly connected to the four corners of the bottom of the fixed top plate correspondingly, suspension air bags are fixedly connected to the bottoms of the fixed columns, solar power generation panels are fixedly installed on the two sides of the top of the fixed top plate correspondingly, and lifting motors are fixedly installed at the positions, between the two sides of the solar power generation panel, of the top of the fixed top plate, gearboxes are fixedly connected to the output ends of the lifting motors, and lifting rotating shafts are movably connected to one sides of the gearboxes through shafts. According to the floating type ocean energy power generation device, through the arrangement of a flow direction sensor, a control cabinet and anelectric paddle, the flow direction of seabed ocean current can be detected in real time by utilizing the flow direction sensor, so that the direction of the power generation device can be adjusted byutilizing the control cabinet through the electric paddle, a power generation mechanism is perpendicular to the water flow direction, and then the utilization rate of ocean current energy is increased.