Hydroelectric power generator

FIELD: power industry.

SUBSTANCE: hydroelectric power generator contains a main and an auxiliary wave generators, wave power stations of the float type connected to a single power system, and a hydroelectric power processing and accumulating unit. The auxiliary generator is made in the form of a pendulum, the axis of which is built into the pillar support. On the long arm of the pendulum, a container with a liquid is fixed, for example with alcohol, and at the end of the short arm a rod is attached, connected with a ratchet mechanism for converting the reciprocating motion of the pendulum into a one-sided forward rotation of the star wheel shaft of the main wave generator. A container of water intake from the reservoir is fixed to each ray of the star wheel. The main wave generator is provided with a lock chamber for water discharge to generate wave processes on the surface of the reservoir. The receipt of hydroelectric power is provided by creating wave processes on the surface of the reservoir and by converting the vibration energy of the floats into electricity.

EFFECT: achieving a higher power of the hydroelectric power station by introducing an auxiliary wave generator, as a result of which the energy generated by the wave power plants is completely supplied to the power storage unit, the installation of an additional current generator in the lock chamber of the main wave generator, operating from the mechanical energy of water discharge.

2 cl, 3 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

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: 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: construction.

SUBSTANCE: invention relates to alternative sources of power, in particular, to tidal power plants. The method consists in the fact that a part of basin water area closed by a dam at the side of the sea, with a river flowing into it, exit of which into the sea is via hinged or pontoon gates only during ebb, together with the river bed from its mouth and to the dam is cut with the dam designed to create upper reach at the side of the river bed. The difference is discharged into lower reach via water conduits adjusted in the dam, to which submerged power units are connected. On the way of the river bed displaced by the dam to one of basin coasts, they install hinged or pontoon gates providing for only single-sided passage of a tidal wave into the water area of upper reach, providing for level difference necessary for turbines operation regardless of change in tide phases.

EFFECT: increased efficiency of power plant operation with lower costs and less time.

3 cl, 2 dwg

Tidal power station // 2525622

FIELD: power engineering.

SUBSTANCE: tidal station comprises dam with several water passages each with hydraulic turbine with blades and water flows forced through its hydraulic turbine, and engine room with electric generator. All hydraulic turbines are integrated by common shaft with electrical generator to make the set, common shaft being arranged along the dam. Water passages are composed of Z-like channel with mid part parallel with common shaft. Inlet and outlet section of S-like channels are inclined to common shaft. Electrical generator is rated to total power of all hydraulic turbines of the set. Integral design of engine room allows decreasing the dam width and application of high-power generators, hence upping the tidal station efficiency.

EFFECT: simplified design.

1 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

FIELD: energy industry.

SUBSTANCE: hydraulic power system comprises multistage concrete pedestals located in two or more rows so that the pedestals of the second and subsequent rows are placed in the gaps between the pedestals of the preceding rows. On the steps of the pedestals the wave power plants are installed connected in the unified energy system, which floats float on the waves. The pedestals are made in the form of multistage polygonal prisms, such as hexagonal, and are arranged around the wave generator. The wave generator is made in the form of a column 2 installed on a concrete polyhedral, for example hexagonal, base 3, on which, above the water surface, the water reservoir 5 is placed with the cuffs 6 at its upper edge, and a conical nozzle 7 in the bottom, and a pump 8 for supplying water in the reservoir. Faces of the prism and the concrete base 2, which are in contact with water, have the shape of a parabola. All the wave power plants are connected to a unit of storage and distribution of the electric energy which is connected to the pump. The groups of adjacent polygonal prisms around the wave generator are located in areas of damped waves.

EFFECT: ability to create additional sources of electricity generation through the use of the wave properties of various natural water reservoirs.

3 dwg

FIELD: energy industry.

SUBSTANCE: generator comprises multistage concrete pedestals arranged in two or more rows so that the pedestals of the second and subsequent rows are arranged in the gaps between the pedestals of the preceding rows. On the steps of the pedestals the wave power plants connected in one power system are mounted. The wave power plants are mounted on the multifaceted and multitiered prisms around the wave generator. The wave generator is made in the form of a column 3 mounted on the concrete polygonal prism 2, on which above the water surface in a magnetic bearing the rotating star-shaped, for example a four-rayed, wheel 4 is mounted. The outer end of each ray of the wheel the stone or cast iron polished ball 5 is attached by means of the connecting element 6. On the inner side surfaces of the star-shaped wheel the troughs 7 are made, the distance between which edges is greater than the diameter of the ball 5. The length of the connecting element 6 is greater than the distance from the base of horizontally disposed trough 7 of the star-shaped wheel to the water surface, but less than the depth of the water reservoir. The facets of polygonal concrete pedestal and the multifaceted prism in contact with the waves are designed according to shape of parabola. The star-shaped wheel shaft 4 is connected to the motor shaft 11 which is connected to the outlet of the unit of processing and storing electric energy, connected to a group of wave power plants. In the water reservoir the star-shaped wheel 4 is mounted so that the ball 5 is moved along its course. The connecting element 6 is made in the form of a rope or cable or cord On the water surface in the area of damped waves the similar groups of wave power plants are located.

EFFECT: ability to use various natural water reservoirs, lakes, ponds, rivers and other water areas for obtaining hydroelectric power, and increase in the efficiency of their use.

3 dwg

FIELD: electricity.

SUBSTANCE: estuary is protected against sea waters with a breakwater (dam) and gates that open to empty the estuary in case of ebb. A canal is laid along the river-sea line with installation of water conduits in its boards (walls) in the quantity equal to the design quantity of float power units. Upon completion of laying works at the side of the sea the water area is closed with gates locked at the pressure of the river flow during ebb and opened with another tide overcoming the river flow, which provides for passage of vessels, also tugboats with float power units to the place of their installation.

EFFECT: no-pause operation of float power units installed along both boards of a canal.

2 dwg

FIELD: construction.

SUBSTANCE: device is designed for technological creation of discharge in the tidal water area between sea and the pond with an isolating dam and passing of water flow moving under action of this discharge via turbine tracts of the TPP building. The complex of main hydraulic engineering structures of a single-pond tidal power plant (TPP) includes a TPP building comprising float-on blocks (1), and an isolating dam of the TPP, which comprises connecting dams (2). The isolating dam has water-passing blocks (5), to which float-on TPP blocks excluded from the discharge front are joined.

EFFECT: reduced material intensity and labour intensiveness of construction of a TPP isolating dam, increased coefficient of intense usage of float-on blocks of the TPP building, improved manufacturability of TPP building modernisation, reduced material intensity of float-on blocks of the TPP building and lower damage to fish reserves from TPP operation.

11 cl, 4 dwg, 1 tbl, 1 ex

FIELD: electricity.

SUBSTANCE: hydroelectric power includes dam, partitioning part of wave-shaping water area with head wall which has inclined slope on the side of water area, with ridge located above its average level, and hydraulic unit consisting of hydraulic turbine and hydraulic generator. Hydroelectric power plant is also equipped with additional dam forming the second reservoir in which hydraulic unit is installed. Water lifting device supplying the water to the second reservoir from the first reservoir is installed in the first reservoir. Head wall is arranged on the side which is opposite to connection of dam to shore of wave-shaping water area.

EFFECT: higher reliability and stability of operation of hydraulic unit owing to creation of productive head irrespective of parameters of wind waves.

3 cl, 7 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

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