Wave power plant

 

(57) Abstract:



 

Same patents:

Wave energy plant // 2286476

FIELD: wave-energy-to-electric-power conversion.

SUBSTANCE: proposed wave energy plant has supporting frame with vertical guides, float installed for vertical reciprocation that accommodates ratchet gears provided with coaxial central holes, shaft passed though these holes and fixed in supporting frame to laminar screw section whose top and bottom parts are twisted in opposition and contact ratchet gears disposed in cylindrical casing with through holes; it also has electric generator. Float is mounted for displacement along vertical guides and has inertial member disposed inside for rotation and displacement together with float; inertial member contacts inner surface of float casing through rollers. Cylindrical casing is joined with inertial member; electric generator is disposed within supporting frame and kinematically coupled through extensible joint between inertial member and drum installed for joint rotation with the latter and with gear transmission.

EFFECT: enhanced power output of wave energy plant generator.

1 cl, 1 dwg

FIELD: power engineering.

SUBSTANCE: invention is designed for conversion of wave energy into electric energy. Proposed converter contains mechanically coupled fixed post, float chambers, frame, shaft, step-up gear and electric generator. Moreover, converter additionally contains relatively interacting second shaft, first and second gears and at least two motion converters. First and second gears are fixed on corresponding shafts and engage with each other. Each motion converter has vertical rod installed for vertical vibration on upper end of which first block is installed, and on lower end, third sprocket engaging with first and second float chambers. First and second overrunning clutches with sprockets are installed on shafts and they engage through first and second chains with third sprocket.

EFFECT: increased efficiency.

8 cl, 7 dwg

Wave power plant // 2305794

FIELD: power engineering.

SUBSTANCE: proposed plant is designed to convert energy of waves into electric energy. Proposed device contains pontoon, anchor chain and anchor, electric generator and drive including working and support sheaves over which flexible tie with weights o each end is passed. One of weights is installed for hanging over bottom and is made in form of floating anchor and the other is made in form of counterweight. Anchor chain is provided with tie-rod. Floating anchor and counterweight are made for adjustment of their mass. Floating anchor can be made in form of hollow platform in which row of chambers is made. Each chamber is sealed and designed for accommodating and/or ground, and /or air, and/or water. Counterweight is made in form of hollow float with sealed chamber in lower part which is designed for ground, and sealed air chamber is found in its upper part. Tie-rod is installed by one end on anchor chain and by other end, on pontoon. It is made flexible and can be adjusted in length.

EFFECT: provision of operation at any depth.

5 cl, 3 dwg

FIELD: power generating.

SUBSTANCE: invention is designed for use in vehicle power drives and for power generation. Method of conversion of energy of working medium into mechanical and electric energy is provided by multistage conversion of energy of drive engine having rotating output shaft, for instance, hydraulic turbine. Power torque is transmitted from shaft of drive engine to mechanical power consumer by means of at least two-stage conversion of mechanical energy into energy of working medium, for instance, water. Water pressure is provided by use of centrifugal hydraulic pump or radial-axial hydraulic turbine operating as a pump with provision of generation of reactive energy caused by interaction of water with blades of hydraulic turbine stage or reactive jet nozzle of stage runner, with transmission of water through fixed waterway and stage stator made in form of spiral chamber or branched manifold. Peripheral speed of stage runner with blades or reactive jet nozzles in creases torque by value of difference of radii of stage runner and drive engine wheel. Device contains drive engine with rotating shaft, for instance, hydraulic turbine, transmitting shaft, generator and at least two similar conversion stages. Shaft of hydraulic turbine is coupled with centrifugal pump impeller of first stage radially from which fixed waterways are laid to branched manifold or to spiral chamber on side surface of which radial-axial turbine runner is installed with working blades or nozzles over periphery under which drain manifold is installed. Runner of second stage hydraulic pump is rigidly installed on shaft by means of which it is connected with runner of first stage and rotor of electric generator.

EFFECT: increased torque transmitted to electric generator.

3 dwg

Wave power plant // 2316670

FIELD: power engineering.

SUBSTANCE: proposed plant is designed for converting energy of waves into electric energy. Proposed plant contains vertical support secured on bottom, rocking rod installed on support for rotation around axis of support, float secured on one of rod ends. Float is provided with intake bottom hole and outlet top hole, both provided with remote controlled valves, and electric generator. Upper end of support remains under water at any possible magnitudes of waves. Wave magnitude sensor is connected with remote controlled valves, float is connected to pneumatic line connected with pressure source, rocking rod is connected with pump which is connected by pipeline with accumulator of hydropotential energy on shore, electric generator is located on shore and is coupled with hydraulic turbine connected with accumulator of hydropotential energy. Plant changes to safe mode of operation owing to filling of float with water at excess of magnitudes waves determined by corresponding wave magnitude sensor.

EFFECT: provision of reliable and long operation.

9 cl, 3 dwg

Wave power plant // 2317439

FIELD: power engineering.

SUBSTANCE: plant is designed for generating power by conversion of energy of sea waves. Proposed wave power plant is mounted on pontoon and provided in nose part with bellows with bottom from wave side and longitudinal bell with vertical tube arranged over bellows accommodating electric generator with mechanical converter, and in center of pontoon behind the bell, box-shaped vertical air duct is installed divided by vertical partition into two parts and communicating with pontoon through two check valves. Windwheel with blades is installed in cut of partition, being mechanically connected through shaft with electric generator. Bellows chamber with bottom is installed in stern part of pontoon. Holes are made in wall of pontoon between spaces of bellows and pontoon, and in wall of pontoon bottom between spaces of bellows chamber and pontoon to pass compressed air inside pontoon, and electric generators are installed.

EFFECT: provision of more complete utilization of energy of sea waves.

8 cl, 3 dwg

Tide power system // 2326264

FIELD: electric power engineering.

SUBSTANCE: invention is related to electric power engineering and may be used for generation of electric power at the account of ocean tides, ocean waves, wind from the shore by integration of tide energy with hydrogen technology. Barrage for energy extraction from potential energy contained in ocean tides, consists of multiple support stands installed with the same interval from each other in the ocean along the perimeter line and attached to the sea bottom. Panels are installed one above the other and fixed between pairs of neighboring support stands. Gaps between every panel and support stands are leak-tightened. Pairs of support stands from two rows of support stands for caissons. Support panels are placed between every pair of opposite support stands from the mentioned two rows so that caisson is supported by support panels, so that they form platform between two rows for caissons. In every caisson there are turbines with facilities that provide for water passing through the turbine by operator command. Electric generators are connected to at least one turbine. Barrage has no gaps or slots. As a result the ocean is separated from the area inside the barrage, excluding time, when operator provides water passing through turbine for electric power generation. Invention works at different loads and functions as power complex with electrolyzers and fuel elements for generation of electric power by request, excluding by that impulse character of traditional tide energy. Hydrogen may be produced as target product.

EFFECT: reduces cost of works.

6 cl, 17 dwg

FIELD: engineering industry.

SUBSTANCE: invention refers to water power engineering, and namely to water-borne vehicles producing electric energy used for external consumers and for its own movement. Energy-producing floating platform consists of a triangular-shaped platform with a power unit, which is elevated above water surface by means of columns, floats, piston-type pumps, and supports which are hinged to columns. Floating platform is equipped with wind impellers installed on brackets and being synchronously rotated by propelling screws with wheels. Between each support and float arranged are piston-type pumps. Inside each column there is an axle on lower end of which there installed is a propelling screw and a wheel, and the other axle end is taken out above the platform surface and is provided with a pulley. Over pulleys there passed is a flexible rope pulled over by a steering mechanism.

EFFECT: designing the maneuvering self-moving energy-producing floating platform which is capable of autonomous movement on water surface.

2 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to hydroenergetics, to low pressure flows of seas, rivers and water outlets of hydro electric stations and reservoirs. A tidal hydroelectric plant contains a cylindrical body of the machine compartment with a gear box and electric generator of the tail hydroturbine with arms, mounted on its axis and the axis of rotation. On the upper part of the body is fixed a flat pylon, on the end of the pivot system and the axis of rotation. The body is suspended on a crossbeam in the passage of the catamaran for lifting the power station to the level of the servicing platform on the grooves of the support bridge pier, connected by the arch with a lifting mechanism. Arms of the hydroturbine are made short and wide sweptforward on the leading edge and with a concave surface in the form of a parabolic curve, and a convex surface of the tailpiece perforated with slanting slits.

EFFECT: reduces the depth of the low pressure power stations, increases the hydrodynamic quality of the hydroturbines arms, and ensures periodic lifting of the power station from the water.

3 cl, 4 dwg

Water power device // 2361109

FIELD: engines and pumps.

SUBSTANCE: invention is related to the field of renewable power sources, namely to use of potential energy accumulated in water reservoirs and its conversion into other types of energy, mostly in electric energy. Water power device comprises the following components that interact with each other - platform, multiplier, power generator, the first and second shafts, in which according gears are installed, overrun clutches and sprockets that interact with chain. Device additionally comprises the first and second trolleys. They are connected to each other by chain and are installed in appropriate inclined guides with the possibility of reciprocal motion. Appropriate reservoirs are installed in trolleys, being equipped with exhaust water valves. In upper points reservoirs interact with appropriate newly introduced inlet water valves and units of position fixation, and in lower points - with end supports.

EFFECT: makes it possible to simplify design and increase efficiency of energy transformation.

7 cl, 6 dwg

FIELD: power engineering.

SUBSTANCE: power station comprises underwater wave-receiving blade mounted for permitting rocking around the axle, hydraulic pump, and fluid-operated motor provided with electric generator. The wave-receiving blade is provided with the hydraulic accumulator built in its intermediate section and drain tank. The hydraulic pump is provided with the diaphragm and has two ways. The flexible diaphragms are arranged from the outsides of the wave-receiving blade.

EFFECT: enhanced reliability.

3 dwg

Hydraulic unit // 2325549

FIELD: engines and pumps.

SUBSTANCE: hydraulic unit contains hydro generator, working blades rotating around a horizontal axis and having a shape formed with one parabola or with a cross of two parabolas, and a shaft running inside a bar to transfer a torque to the generator. The unit is equipped with a hollow drum with supports providing its floatation ability, and with a rotary table whereon the hydro generator is assembled. Also the hydro generator has inertial wheels with massive rims secured to both sides of the drum, and the second bar. The working blades are fastened flexibly with loops to the drum and pressed to the supports by flat springs. The shaft is made flexible and runs through both rods by means of which the axis of the unit is held and directed.

EFFECT: increased efficiency of a hydro unit.

1 dwg

FIELD: machine building.

SUBSTANCE: present invention pertains to hydraulic power development. A support arm with a hinge, enabling rotation and fixing the water pipeline in the direction of flow of water, allows for using the power installation as a flow power installation or as a wave power installation. Functional capabilities of the power installation are widened due to use of water pipelines with orthogonal turbines and an electric power generator under water on the support arm. The amount of electrical power generated can also be increased due to that, the blades are oriented in opposite directions for rotation of orthogonal turbines in opposite, unchanged directions, independent of the direction of flow through the orthogonal turbines. The inductor coil of the electric power generator is immoveable, has two-directional operation and is between neighbouring short-circuited rotors, each connected to its axle of the orthogonal turbine. The short-circuited rotors rotate in opposite directions, are fitted with small clearances from the inductor coil and are fixed using lining made from material with low sliding friction. As a result, there is increased efficiency of using energy of water passing through the flow part of the convergent-divergent water pipeline.

EFFECT: wider functional capabilities of a power installation with orthogonal turbines.

2 dwg

FIELD: power industry.

SUBSTANCE: wave electric power station includes turbine with generator, wave energy converters the working medium of which influences turbine blades by means of pipelines. Converters are submerged to the bottom and made in the form of flattened cone or prism with cutouts providing water supply to create excess pressure of working medium in upper narrower part of converters.

EFFECT: developing wave electric power station allowing to convert the supplied wave energy to electric energy by rational method.

2 dwg

FIELD: power industry.

SUBSTANCE: generator set for power generation by water movement, particularly tidal movement, comprises long basically terete buoyant cylinder 1, supporting facilities coming from its bottom, and rotor 2 connected with generator with blades 3. Rotor 2 through supporting facilities 5, 6 is connected to cylinder 1 via pivot joint 7 on keel side 8 of cylinder 1. It is possible to turn from the first fold position directly under cylinder 1 into the second unfolded position directed to tide fluxes, therefore when operating the set, water movement through blades 3 of rotor 2 rotates rotor 2, ensuring that generator produces power.

EFFECT: preventing from complications in maintenance, repair works and handling.

10 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: invention refers to hydraulic power engineering and is intended to produce electric energy by converting kinetic energy of sea waves to electric energy. Wave plant includes impeller, generator and wave receiver located after impeller in wave direction. One end of wave receiver is hinged to support on the shore, and the other end by means of holders is rigidly fixed on pontoon. Impeller is rigidly fixed on pontoon by means of holders.

EFFECT: providing the possibility of maximum use of kinetic energy of sea wave.

3 dwg

FIELD: power engineering.

SUBSTANCE: wave-activated power plant comprises an energy converter including a system of gears enclosed into a body fixed on a support above the water surface capable of rotation around the vertical axis, a lever, which is connected with its one end to the gear system via a mechanism of single-sided rotation, and with the second one - to a cylindrical float. The float is equipped with a wave tail unit for alignment along with direction of waves and freely rotates on the lever axis, compensating variances of wave forces at the float ends. A generator is fixed on the support above the water surface and is connected to the energy converter.

EFFECT: invention makes it possible to align the float along the direction of waves and to more efficiently convert the energy of sea waves.

FIELD: machine building.

SUBSTANCE: proposed system comprises rotor assembly with axial symmetry about rotational axis and features rotor end face located upstream, turbine shroud ring 102 housing, at least, part of rotor assembly and ejector ring 128 housing, at least, part of said turbine shroud ring 102. Said turbine shroud ring has inlet and outlet. Said turbine shroud ring outlet 117 comprises multiple elements turbine shroud ring mixer and features noncircular cross-section. Ejector ring 128 comprises inlet and outlet.

EFFECT: higher output and efficiency.

15 cl, 35 dwg

FIELD: engines and pumps.

SUBSTANCE: invention relates to ocean-wave generator. Proposed generator comprises float 2, rotary shaft 1, generator 3, multiple turbine wheels 4 and water flow wheel 5. Generator 3 is locked on float 2 accommodating accelerator 5. Shaft 1 runs in sync with float 2 and accelerator 5 and is arranged there between. Top end of shaft 1 extends through float 2 to get jointed with generator rotor 3. Shaft bottom end extends through accelerator 5 to be locked with turbine wheel 4. Water flow channel 51 is arranged in accelerator 5 to produce high-speed water flow to drive turbine wheels 4 in one direction. Channel 51 features scroll shape. Internal diameter of channel 541 gradually decreases from its inlet to outlet.

EFFECT: higher efficiency.

8 cl, 10 dwg

FIELD: power industry.

SUBSTANCE: float-type wave power plant includes a housing with chambers filled with liquid and connected with a channel, two floats located symmetrically relative to its axis, a turbine located in the channel on one axis with an electric generator and connected to it. The power plant is provided with a tail fin stabilising its position relative to a vertical, two side floats attached to the housing and located on its different sides along the housing axis, which stabilise the power plant position relative to incoming wave front, and float movement limit stops located on the housing. The chambers are corrugated and located on the housing symmetrically relative to the axis. Two floats located symmetrically relative to the housing axis are rigidly attached to each other so that they can be rotated about the axis and attached to upper parts of the corrugated chambers, at the tension and compression of which a provision is made for passage of liquid via the channel, inside which the turbine is located.

EFFECT: increasing efficiency of a plant and providing a possibility of automatic orientation of the plant relative to a front of incoming waves.

2 dwg

Up!