Wave power system
FIELD: energy; construction.
SUBSTANCE: invention relates to hydrotechnical structures for power generation and simultaneous protection of shore from storms. Wave power complex is arranged in water with properties of electrolyte in zone of wave motion. Complex comprises converting elements 1, electrically connected to each other in parallel. Every element 1 is made as electric current generator and comprises bearing base 3, magnetic system of permanent magnets 2 arranged on basis 3, protective plate 4, current collector and current-collecting bus 5. Current collector is made in form of contact-rectifier module 6 with paired connecting terminals, made with possibility of being connected to terminals of adjacent elements 1 with aligned polarity. Magnetic system is covered from above plate 4 of dielectric with buses 5. Ends of one bus 5 are connected to terminals of positive polarity module 6, and ends of second bus 5 are connected to terminals of negative polarity. Polarity of magnets 2 arranged along edges of the base 3 and oriented along longitudinal axes of buses 5, is same and opposite to polarity of magnets 2 located between buses 5.
EFFECT: simplified design and provision of direct conversion of wave energy into electrical one.
4 cl, 5 dwg
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
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.
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.
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.
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.
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
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.
FIELD: power industry.
SUBSTANCE: conveyor-type hydraulic power station contains guide channel, actuating device with flexible element in form of closed chain-drive comprising connected with each other links-carriages with blade units, each contains symmetrical blade pairs. The guide channel contains main and secondary channel, its output is equipped with shutter. Each channel is divided to the contraction, work and diffuser parts. Each blades pair includes vertically oriented small and large blades. Large blades are secured on axles provided with rollers, and small blades are connected with each other and with large blades by means of the horizontally oriented arc-like jumper-blade. At that if the guide channel contains one secondary channel, then the later is located above the actuating device, and if several secondary channels, then they are arranged along the main channel from both sides. The secondary channels are connected with each other and with main channel by means of the tapering branches and windows equipped with shutters and guide partitions that guide the flow to the main channel and installed before the windows inside the main channel at angle to the casing.
EFFECT: increased power of hydraulic power station.
3 cl, 9 dwg
FIELD: power industry.
SUBSTANCE: invention relates to hydropower engineering, namely to hydroelectric power plants. A run-of-river hydroelectric power plant 2 is installed on a basement 26 and contains several rigid, water-tight housings 6 with an elliptic cross section fitted with turbine modules 8 arranged with a possibility of transmission of rotation from shafts 13 enclosed by a ring 27, turbines 12 through free-wheeling clutches 14 to the common shaft 15 passing through an onshore well 21 with the ground river water circulating in it through a reducer 16 to the rotor shaft of an electric generator 17 installed on the shore 3. In each turbine module 8 the plane of rotation of the turbine 12 blades is inclined at an angle to the longitudinal axis of the flow 1, in the zone of the hub 18 of the turbine 12 to which blades are fastened. On a guiding lattice 11 located upstream the turbine 12 a cone-shaped body 25 is installed with the top oriented upstream. From the back side on the hub 18 of the turbine 12 a hemispherical body 19 is installed. Upstream and downstream the turbine module 8 a shutoff device 7 is installed.
EFFECT: invention is aimed at providing of extraction of the maximum possible part of kinetic energy of water, which freely flows in the river, for its conversion into electric power.
21 cl, 9 dwg
SUBSTANCE: invention may be used in applied hydroacoustics for provision of safety (industrial and environmental) of hydraulic engineering structures (HES) of high hazard facilities: nuclear power plants (NPPs), hydraulic power plants, heat power plants, tidal power plants, offshore oil and gas platforms, etc. In particular (with regard to NPPs) for: protection against penetration into a water supply channel (WSC) 2 of above-water (AWSC) 12 and underwater (UWSC) 13 subverter carriers, as well as underwater subverters (UWS) 11 themselves; protection of mature fish (MF) 14 and young fish (YF) 15 against ingress into the water supply channel (WSC) 2 and directly into a water intake window (WIW) 4; treatment of water from mechanical (MA) 17 and biological (BA) 18 admixtures and biogrowths (BG) 16; acoustic degassing of water. The method consists in physical retaining of AWSC, SWSC and UWS by formation of a combined air bubble curtain at the inlet to the water supply channel 2, sharp reduction of density of water medium and subsequent dropping of the AWSC 12, SWSC 13 or directly the UWS 11 itself to the bottom. Mechanical retention of AWSC 12 is carried out by means of installation of a power boom containment at the inlet and across the water supply channel 2 and subsequence damage of the AWSC 12 body. Multi-stage and combined acoustic displacement of UWS 11 is carried out, as well as multi-stage and combined non-lethal damage of UWS 11, and multi-stage and combined displacement of fish 14, including young fish 15. Combined treatment of water from mechanical admixtures 17, biological admixtures 18 and biogrowths 16 is carried out at the inlet to the water supply channel 2, as well as multi-stage and combined acoustic immobilisation and acoustic destruction of biogrowths 16. The method also includes acoustic degassing of water at the outlet from the water supply channel 2 - in the area of the water-intake window 4.
EFFECT: invention provides for required safety of NPP HES.
FIELD: power industry.
SUBSTANCE: beam (8) for attachment of fairing (2) of hydro-electric power plant (1) has a cross section in a plane perpendicular to longitudinal axis (A8) of beam (8) in the form of a parallelogram. Beam (8) includes at least one slot that mainly passes parallel to longitudinal axis (A8) of beam (8). In the cross section perpendicular to longitudinal axis (A8) of beam (8), traces of the surfaces located along the slot pass from one of the sides of large sizes of the cross section to the adjacent side of small sizes of the cross section. Hydro-electric power plant (1) includes wheel (3) that can be rotated about axis (X1), fixed fairing (2) enveloping the wheel, and at least one beam (8) for attachment of the fairing, which attaches the fairing to central support (6) of the hydro-electric power plant.
EFFECT: geometrical shape of an attachment beam allows restricting Karman vortexes and even preventing their formation at action on the beam of water flow during operation of a hydro-electric power plant.
10 cl, 7 dwg
FIELD: power industry.
SUBSTANCE: invention refers to hydroelectric power industry, particularly to methods of small river and artificial flow utilisation for electric power generation. Method of midget hydroelectric power plant construction involves construction of hydroelectric aggregates in the form of converters of kinetic water flow energy to potential hydraulic shock energy, and rotating drive of electric power generators. Water ducts of hydroelectric aggregates feature walls moving in radial direction and injectors with actuators driven in reciprocal motion by water duct walls moving in radial direction. Electric power generator drive is made in the form of propellers rotated by energy transferred from injectors to propellers by intermediate energy carrier, a work medium other than water.
EFFECT: simple method of midget hydroelectric power plant construction in low-intensity water flows.
4 cl, 1 dwg
FIELD: power industry.
SUBSTANCE: at implementation of a construction method of OTPP combined with SP 1, all the component parts of the object being built in the form of ready-made reinforced concrete or metal blocks from the works to the assembly site are delivered by means of a float-on method. Sequence of construction work is started from an earlier installed supporting and restricting barrier consisting of a metal, reinforced concrete or wooden grooved pile projecting in an underwater position through the height sufficient for fixed retention of flooded threshold blocks with orthogonal turbines 4, including foundation of SP 1. First, assembly of the foundation is started by afloat attachment into a common structure of a rectangular shape, the margin of buoyancy of which is sufficient for retention of posts for laying of board panels. Assembly of SP 1 is completed by installation of double-leaf gate 7. Gate 7 is left open till completion of work on installation of threshold blocks with turbines 4 connected through shafting 5 to generators 6 installed on the shore.
EFFECT: construction of HPP on navigable rivers, where it is impossible to erect dams and flood gates as per local conditions.
3 cl, 2 dwg
FIELD: power engineering.
SUBSTANCE: pumped storage plant on plain streams comprises riverbed hydraulic power units, including axial pumps, which are rotated by riverbed water wheels via multipliers. Riverbed hydraulic power units serve for filling of an upper accumulating pond made in the form of a water reservoir with dam walls along the perimeter. Upper and lower accumulating ponds are connected to each other by discharge pipelines with pumps-turbines in the lower part connected mechanically with electric motors - generators in a turbine room. The upper accumulating pond covers a river bed by half.
EFFECT: prevention of flooding of plains and land plots, free navigation and fish passage along entire length of a river, increased depth of a fairway and higher speed of water flow.
5 cl, 11 dwg
SUBSTANCE: method includes development of the first 28 safety border and the first physical protection 36 against penetration of biological underwater objects (BUO) and facilities of their delivery, the first treatment of return service water 37 from mechanical (MA) and biological (BA) admixtures, the first protection of fish, including young fish, the first cooling of return service water. The second 29 safety borders are established, identical to each other and similar in purpose at the inlet of each water supply canal and subsequent supply: the second physical protection 39 against penetration of BUO, the second treatment of return service water from MA and BA, the second protection of fish, the second cooling of return service water. The third 30 safety borders are established, identical to each other, at the inlet to water intake windows and subsequent supply: the third physical protection against penetration of BUO, the third treatment of return service water from MA and BA, the third protection of fish, the third cooling of return service water and its first acoustic degassing. The fourth 31 safety borders are established, identical to each other, at the outlets of water supply canals identical to each other and subsequent supply: the fourth physical protection against penetration of BUO, the fourth treatment of return service water from MA and BA, the fourth protection of fish and the fourth cooling of return service water. The fifth safety border 32 is created in the common water drain canal and subsequent supply of the fifth physical protection against penetration of BUO and facilities of their delivery, the fifth treatment of return service water from MA and BA, the fifth protection of fish, especially in the period of their spawning, and the fifth cooling of return service water.
EFFECT: distant detection, valid classification and accurate identification of spatial coordinates of acoustically barely visible BUO under conditions of higher surrounding noise of anthropogenic and natural character, intensive reverberation at distant detection, hydroacoustic displacement of BUO, failure of management systems of underwater carriers of BUO, mechanical protection of a border against penetration of above-water and underwater carriers of BUO, multi-stage treatment of water from MA and BA, multi-stage cooling of water, used for process purposes, environmental safety.
SUBSTANCE: hydroelectric power station comprises a pipe-water passage 2 with a hydraulic turbine 6 mounted in it, connected to the generator 7. The pipe-water passage 2 is mounted in the water reservoir and laid on the bottom of the water reservoir to the platform 8 attached to the coast. The pipe-water passage 2 is additionally provided in the upper part, which rises above the water reservoir level, with the axial pump 9 with a controllable pitch propeller. The hydraulic turbine 6 is mounted in the lower part of the pipe-water passage. The pipe-water passage 2 is fixed at the bottom of the water reservoir and has the openings 4 for entry of water. The energy complex consists of several hydroelectric power stations united by the common platform and having the necessary capacity adjustable by turning on and off the pumps.
EFFECT: group of inventions enables to produce electrical energy in different climatic conditions, with the possibility of increasing the unit capacity by increasing the length of the waterfront of the hydroelectric power station.
8 cl, 5 dwg
FIELD: power engineering.
SUBSTANCE: hydraulic power plant of conveyor type submerged into a fluid medium comprises a frame with at least two pairs of guides and shafts installed on it at the opposite sides as capable of rotation. One of the shafts is kinematically connected with a power generator. A flexible element that embraces the shafts is made in the form of a closed chain gear with fixed blades equipped with axes and rollers. The hydraulic power plant is placed in a channel equipped with gateways along the flow with partial submersion of the body into the fluid medium. The flexible element comprises joined links-carriages with combined blades, which consist of at least four V-shaped plates arranged in pairs opposite to each other. Plates in each pair are parallel to each other. Shafts are placed at different levels, and wheels are installed at their ends. Wheels of the shaft arranged below are made as geared and of smaller diameter compared to wheels of the other shaft. The shaft with wheels of the smaller diameter is arranged upstream compared to the shaft with wheels of larger diameter.
EFFECT: increased reliability and capacity of a hydraulic power plant.
4 cl, 6 dwg
FIELD: hydraulic and hydropower engineering, particularly for building water-retaining structures to provide power supply to small settlements and farms.
SUBSTANCE: method involves assembling flexible apron assembly consisted of flexible floor apron and flexible downstream apron in watercourse; securing thereof to watercourse bottom by anchors. Water outlet assembly including hydroelectric generator arranged inside it is secured to floor apron and downstream apron by rigid ties. Connected to water outlet assembly by ties are water retaining shell and rope system secured to anchor poles located on watercourse bank.
EFFECT: reduced time of structure assembling and costs for electric power generation.