Device for electric power generation based on sea waves use

FIELD: electricity.

SUBSTANCE: device for electric power generation based on sea waves use contains converter of sea waves energy made in form of set of tanks connected in series and communicating with each other by check valves, resulting in liquid accumulation in the accumulator of the hydropotential energy. The tanks are located along the sea waves movement. Accumulator is made in form of water tower creating the required water head for the electric generator turbine generating electric power. Tanks in upper part are provided with the additional check valves passing water inside the tanks when waves pass above them.

EFFECT: increased efficiency of the device, increased its universality and simplified design.

3 cl, 6 dwg



Same patents:

FIELD: machine building.

SUBSTANCE: group of inventions relates to the impeller of Francis impeller for the hydraulic machine through which the forced water flow shall pass. The Francis impeller for the hydraulic machine contains rim (1) with symmetrical rotation around the rotation axis (Z) of the impeller, ceiling (12) and multiple bent blades (21) secured with rim (1) and ceiling (12), each of them has peripherical edge (212). Edge (212) of at least one of the blades (21) is bent and its concavity looks outside the impeller. Distance measured between any point of the edge (212) and straight line passing from one side through first point of interface between the edge (212) and rim (1), and from the other side through the second point of interface between the edge (212) and ceiling (12) is maximum at level of the intermediate point of the edge (212). Radius of the intermediate point is strictly lower the radius of first interface point and radius of second interface point.

EFFECT: invention designs the impeller which geometry ensure stabilisation of the impeller rotation speed during transient start-up phases at relatively low fall heights.

15 cl, 10 dwg

Inertial generator // 2553968

FIELD: electricity.

SUBSTANCE: device consists of interconnected vessels with the liquid 1, floats 2i, i = 1, …, 2, connectors 3i, i = 1, …, 2, converters of mechanical energy into electric one 4i, i = 1, …, 2.

EFFECT: solution of the problem of simplification and increase of production efficiency of electric energy for low-power self-contained units installed on moving objects.

1 dwg

FIELD: construction.

SUBSTANCE: invention relates to the shore facilities, ensuring the use of wave energy with its subsequent conversion, for example into electric energy. Ramp wave energy storage unit comprises a storage pool that has fences against the wave forming water area. Part of the fence from the wave forming water area is designed in the form of optimal height of water storage barrier, which has the upper edge integrated with ramp, bevelled to the pool. The ramp is submerged into the wave forming water area by the bottom part and has horizontally placed channels from the front side with respect to the water area, providing the opportunity to take water from waves in case of wave setup on the ramp. Horizontally disposed channels have tubular outlets, through which water flows into the storage pool. Ramp wave energy storage unit provides the water flow into the storage pool not only in stormy weather, but also at moderate wave setups and back drafts at coasts of seas, lakes and other wave forming water areas.

EFFECT: invention makes it possible to ensure protection of onshore facilities and at the same time to accumulate the wave energy.

2 cl, 1 dwg

FIELD: engines and pumps.

SUBSTANCE: device comprises a floating element 10, which is placed onto the sea surface and connected to a pump, rigidly fixed to the sea bottom or to massive floatage 8. The pump is made in the form of a cylindrical pipe-shaped vertically arranged chamber 1 semi-submerged into the sea, which in its upper and lower parts is equipped accordingly with lower 3 and upper 6 nozzles. At the lower nozzle 3 there is a hose 4 with certain length arranged in water depth. In the chamber there is a piston in the form of an inlet check valve placed on the stem 9, which is made as capable of passing water in the chamber only in direction from the lower nozzle to the upper one and is connected by means of the stem 9 with a floating element 10. The piston may be made within a membrane 12 adjacent to the plane of a disc 11 made with through holes, axes of which are parallel to the axis of the disc.

EFFECT: simplified design, expanded area of application of a device for water lifting.

2 cl, 1 dwg

FIELD: power industry.

SUBSTANCE: invention refers to hydro power engineering. Device utilising tidal flow energy includes rotor 1 consisting of spiral vanes with segmented profile, attached by cross-beams to the shaft, and generator mounted on a platform and connected to the rotor. Lower end of rotor 1 shaft and generator connected to it are placed in a sealed capsule 2. Sealed capsule 2 rests on two bearing beams 4 with the help pf two pins 3 protruding from opposite sides of outer capsule surface and can rotate around horizontal axis perpendicular to the flow direction. Bearing beams 4 are attached to cylindrical cases 5, the ends of which are interconnected by braces 7 with segment-shaped cross-section turned with its convexity down and forming α angle to the horizon to produce lifting power directed towards the bottom.

EFFECT: simplified design, extended application range covering water areas of large-capacity navigation and ice cover.

4 dwg

FIELD: power industry.

SUBSTANCE: invention refers to hydraulic power industry, particularly to wave and tidal power plants. Wave and tidal power plant includes buoyant tank 1 with at least one pulley 2 attached to it, at least one vertical underwater cylinder 3 connected by a flexible link 4 with anchor 5 set at the sea bottom, plunger 6 featuring at least one stem 8 and positioned inside the cylinder 3 with a possibility of reciprocal movement down under its own weight or spring or up along with buoyant tank 1 upheaval with a wave or tide, resulting in work medium suction and displacement from the cylinder 3 and transfer to an electric power generator or to the land. Cylinder 3 is buoyant and is located under water completely or partially, or is non-buoyant and is attached to levelled sea bottom. The cylinder 3 is connected to the plunger stem by flexible link 7 passing through the pulley 2 of buoyant tank 1, and thus the rising travel distance of the plunger 6 is approximately equal to two rising travel distances of the buoyant tank 1.

EFFECT: enhanced efficiency of the plant due to increased plunger travel amplitude.

8 cl, 3 dwg

FIELD: power industry.

SUBSTANCE: invention relates to the power industry, namely to sea wave energy removal devices in a near-shore area. A combined wave energy converter is made in the form of a hollow reinforced-concrete mass 1 forming a pool having the front (facing to the sea) wall 4 with inlet plate-like valves 8 in the underwater part and an inlet valve in the upper part and a rear wall 6 with an outlet water line and low-pressure hydraulic turbine 11 in the underwater part. The upper valve of the front wall 4 is made in the form of a floating pontoon 9 on a hinged connection, which is inclined inside the pool. On the upper edge of the rear wall there attached by means of a hinge is a flap 12 elevated above the water surface and retained in a vertical position with elastic couplings 13, which is capable of being swung by crests of big waves and has an additional line power takeoff device 14.

EFFECT: invention is aimed at the improvement of the wave energy takeoff efficiency, automatic control and coordination of operation of a combination of different working elements of the device.

1 dwg

Wave power station // 2536413

FIELD: power industry.

SUBSTANCE: invention refers to hydropower industry and can be applied in wave and tide power plants, and as shore protection structure. Wave power station includes vertical guide racks, cross-beam between them, bearing two turbine plants separated by space. Cross-beam can move in vertical direction on the racks to the turbine plant submersion depth depending on wave height. Additionally the wave power plant includes two dams between which waves pass, reflecting screens directing water stream to turbine plants and mounted on the cross-beam made in the form of metal frame, and one-side gate valves mounted on the dam ends. One turbine plant can be operated by a wave approaching the shore while the other plant can use retreating wave.

EFFECT: simplified device, expanded application scope and area for conversion of wave and tide energy to electric power.

3 dwg

FIELD: power engineering.

SUBSTANCE: run-of-river micro station comprises hydraulic turbine with blades 1, generator 7 fitted at pontoon 8 with anchor pole 9. Diverging blades 1 are curved in conical screw line or in conical logarithmic spiral. Front ends 2 of blades 1 bent through 90 degrees are secured inside hear case 3 at shaped bush 4. Rear ends 5 of blades 1 are secured to spider 6.

EFFECT: fast-assemble-disassemble portable run-of-river plant.

3 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: electrohydraulic system contains multi-step concrete pedestals placed in one or more rows where the pedestals in the second row and next rows are placed in gaps between the pedestals in the previous rows. On the steps of the pedestals there are installed wave electric power stations united in the common power generating system, and their floats are placed awash. The pedestals are made as multi-step polygonal prisms, e.g., hexagonal ones, installed around the wave generator. The wave generator is made as a motor 3 mounted on a polygonal, e.g., hexagonal, platform 2, the motor shaft is coupled to a cam gear 4, on which a rod 5 lies with a ball 6 fixed at its end. The second end of the rod is fixed to the platform. The wave electric power stations are installed around the wave generator on multilevel polygonal, e.g., hexagonal prisms with their floats floating awash. All wave electric power stations are coupled to the unit of electric energy accumulation and distribution and the latter is coupled to the motor. Neighbouring groups of polygonal prisms around the wave generator are placed in damped wave zones.

EFFECT: invention of additional electric energy generating sources due to wave properties use of different natural water bodies.

3 dwg

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