Method to construct no-pause tidal float power plant with single-side shutoff site
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.
The invention relates to the field of alternative energy sources, in particular tidal power plants constructed at the mouths of rivers. It can be used in almost all estuaries of the Northern rivers of the European part of the Russian Federation, with the tidal range from 3-15 meters
Known first commercial tidal power plant (TPP), built at the mouth of the river Wound in 1967 (France). Her power produced by the capsule 24 units, is 240 thousand kW, while the units are in the phase of the tide and low tide, and in the direction of the pool-sea, backwater channel 21 km PES produces 537 kW/h, and in the direction of the sea-pool is 71.5 kWh, the Main drawback of PES on rrans, as well as all tidal power plants are stopping (pause) when you change the direction of the tidal wave, and this disadvantage is aggravated by the fact that these pauses occur on the lunar calendar and in no way at odds with the earth production process, which means that when using PES will need external power source.
Other disadvantages of PES should be attributed to the high cost of capsule units and the dam, including shipping gateways, all it took 40 thousand cubic meters of concrete, from which it follows that the payback PES can last for decades, that little attractive to investire the soup party.
The technical result of the invention is that under comparable conditions it is possible to achieve the best results at a lower cost, in particular, to abandon the construction of the dam as an unnecessary element.
In the proposed version of the float-tidal power plant (hereinafter PPAS) one-way locking of the target ensures the continuity of work PPAS regardless of the state of a tidal wave. The proposed scheme does not preclude the use of capsule units as more productive turbines compared to traditional vertical at low gradients, however, the proposed vertical turbines in the float version has a number of significant advantages, in particular, their performance was not affected not only the change of flow, but also its full stop, which often happens when wind surges and ebbs in which the turbine PES cease to revolve already on fault element. For PPES such phenomena only benefit.
In the present invention, a method for construction becausei floating tidal power plant with one-way shut-off target, characterized in that through the estuary, protected from tidal waves breakwater (dam) and the gate opening on emptying the water area of the estuary at low tide, lay along the line of river-sea channel installation is coy in its sides (walls) water in a quantity equal project number float units; at the end of the cushioning works from the sea close gate, lockable under the pressure of the river flow during low tide and otkrivajuscie overcoming runoff next tide, which ensures the admission of ships, including tugs with float units to the place of their installation.
The channel is one-way shut-off target provides becausenow (non-stop) operation turbine units regardless of the phase state of the tide.
The use of units in the float version simplifies their installation and maintenance, and if necessary, their interchangeability, with surface sampling workflow does not harm marine life.
The advantages of PPAS should include float units, from the standpoint of ease of Assembly, is feasible in almost any convenient location, and then towed to the place of their installation, and approximate data of one block with its inclusion in the work will take about one hour.
This technical result is achieved by the fact that through the estuary (estuary), protected from tidal waves dam, and at low tide providing emptying the basin, port (harbour) from river runoff self-opening gates lay floating ways the Ohm, along the line of river-sea channel, with the installation of its sides (walls) water in a quantity equal to the number of the float units. Upon completion of the cushioning works of the canal from the sea close folding gate, lockable river runoff in the phase of the tide, the gate opening occurs under the pressure of the tidal wave, this time is the passage of vessels, including tugs with float units delivered to the site in special niches, where the landing will be self-centering, providing a combination of nodes reset the float units with socket ends of the conduits, and when filling the fresh water holds out today with a simultaneous launch in the working position of the turbines, and already at the first separately prescribed unit PPAS will begin to generate electricity.
In the figure 1 in plan showing the mouth of the river, the location of the port, closed from sea waves by a breakwater, for PPES this water area is still securely closed sealed gate that opens only under the pressure of the water during low tide. The estuary is divided into two unequal parts by the channel, the sides of which the height is designed to hold the maximum level of the tide. At low tide gates river runoff, the runoff from the closed target is distributed between ten units, stykovanie with conduits providing work relief in a closed water area of the estuary, the alignment of levels between the separated parts is carried out by the pipe (1), laid under the channel, the channel width is determined by its sudokhodnoye, for malogabartinykh courts width of the gate at a rate should be 100 m as shutter use specially adapted two barges, their divorce restrict the supporting poles, and when closing - anchor chain (2).
The figure 2 shows the unit in the section. By handwheel (3) open blinds of the fence, run the turbine in the work carried out by the handle (4), opening the hatch, through which sea water as ballast to fill the hold, the level of the unit will fall and through the louvers outboard water gets on the turbine blades and at the same time will break a flexible plug (5)held by the docking station (6) under its own weight falls in the mouth of the conduit. For reliable docking docking station make sliding or flexible-corrugated. Centering niche (7) and siphon tube (8).
The hull of a floating power unit is made from reinforced concrete in the matrix in a flexible (elastic) closed pavlopoulos, and bottom heavy hemisphere and the top light is made separately with their subsequent coupling into a ball or ellipsoid at the completion of works on installation of internal floors.
Zebra R. Energy prili the s and tidal power station / translated from the French. Moscow: Mir, 1964
Marine encyclopedic Handbook in two volumes, edited by N.N. Isanin. - Leningrad: Sudostroenie, 1987
1. The method of construction becausei floating tidal power plant with one-way shut-off target, characterized in that through the estuary, protected from tidal waves breakwater (dam) and the gate opening on emptying the water area of the estuary at low tide, lay along the line of river-sea channel with the installation of its sides (walls) water in a quantity equal to the design number of float units, at the completion of the cushioning works from the sea close gate, lockable under the pressure of the river flow during low tide and Windows that overcoming runoff next tide, which ensures the admission of ships, including tugs with float units to the place of installation.
2. The method according to claim 1, wherein the channel is one-way shut-off target is provided becausea (non-stop) operation turbine units regardless of the phase state of the tide.
3. The method according to claim 1, characterized in that the application of the units in the float version simplifies their installation and maintenance, and if necessary, their interchangeability, with surface sampling workflow does not harm marine life.
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
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
SUBSTANCE: device includes several cylindrical shell supports arranged on sea shelves, system of supply and drain pipelines, hydraulic generators. Cylindrical shell supports are installed in a row with clearance for water passage along line perpendicular to direction of tidal and ebb currents. Cavity of cylindrical shell support is divided along vertical line into several tiers, for instance into 2 and more, to locate pipelines and hydraulic generators. Supply pipeline passes perpendicularly along diagonal line, and drain pipeline - along diagonal line parallel to line of installation of cylindrical shell supports. At the same time ends of these pipelines communicate with sea, and hydraulic generators are arranged on drain pipelines.
EFFECT: reduced cost of generated electric energy, less operational problems and higher efficiency due to application of full tide and ebb cycle.
FIELD: power industry.
SUBSTANCE: device for generating supplementary hydropower includes hydraulic power station in the water zone of afterbay of which there installed are islands made in the form of many-staged concrete pedestals located in two and more rows; at that, pedestals of the second and subsequent rows are located in gaps between pedestals of preceding rows. On steps of pedestals there installed are wave electric stations combined into common power system and the floats of which float on waves.
EFFECT: providing the possibility of continuous operation of wave electric stations within a year.
FIELD: engines and pumps.
SUBSTANCE: invention is intended for conversion of sea tides energy. Power plant comprises body with open inlet and outlet installed on vertical shafts of rotation connected to power generators, hydraulic turbines in the form of drums, on external surfaces of which vanes are fixed. At body inlet and outlet vertical shields are installed, which direct tide flow to vanes of hydraulic turbines with provision of their rotation. Drum representing hydraulic turbine consists of cones connected with bases, on external surfaces of which vanes are fixed along helical line so that beginning of each vane on lower top of drum cone is displaced along with its rotation direction relative to the end of vane at the second upper top by 1-2 steps of vanes. On lower cone parts of drum vanes have shape of rotation in the form of cylinder, and in upper part of drum vanes repeat cone shape during rotation, which is increased by double value of vane. On lower cone part of drum, which makes 1/3 of the whole drum, number of vanes is doubled, and width of passage hole between drums in lower part is equal to double size of vane in the area of drum cone bases connection. Rotary vertical stems of tidal shields are installed from longitudinal axis of body symmetry on both sides at distance, which does not exceed diametre of drum lower part rotation, and ebb shields - from side of body at the distance equal to radius of drum lower part rotation.
EFFECT: higher efficiency of tide energy conversion into electric energy.
3 cl, 3 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
SUBSTANCE: hydraulic accumulating power plant comprises a pond located on the earth surface, a water intake facility, a vertical shaft of a discharge water conduit, a communication shaft, aeration shafts, a vertical shaft of power discharge, a turbine room with aggregate blocks, a bottom pond with the main chambers and an inclined transport tunnel. The bottom pond additionally comprises short tunnels, connecting galleries, a switching chamber, discharge connecting water conduits and a distribution chamber. The main chambers of the bottom pond are made in the form of spirally arranged tunnels of round cross section in plan and are connected to each other by means of connecting galleries. Aggregate blocks of the plant unit by means of suction pipes and short tunnels are connected with the distribution chamber, which in its turn is connected with the main chambers of the bottom pond with the help of discharge connecting water conduits. The method for tunnelling of the bottom pond includes tunnelling of the main inclined transport tunnel from the surface to the underground structures with the help of a tunnelling mechanised complex and erection of the main chambers of the bottom pond. When the bottom pond main chambers are tunnelled, the switching chamber is arranged to redistribute rock discharge during tunnelling and to reduce length of rock discharge along a conveyor.
EFFECT: possibility to arrange high-discharge hydraulic accumulating power plants on plane territories, at large depths from 300 m to 2000 m, optimisation of works performance and maximum mechanisation of tunnelling of underground mines, by means of wide usage of efficient tunnelling mechanised complexes.
2 cl, 4 dwg
SUBSTANCE: mobile small hydro-electric station of sleeve type with a transverse jet turbine includes a water-retaining shell fixed in the upper part due to back stays and guy lines of fitting to coastal anchor supports, and in the lower part by means of a unit of fixation to an apron fixed by bed anchors to the bottom of the watercourse. The water-retaining shell has cuts at the side of coastal abutments symmetrically relative to a flexible sleeve for provision of its protection against direct exposure of the flow as it overflows via a crest into a lower reach. A hydraulic unit is installed on a water-filled shell jointly with the flexible sleeve and has a flow rate controller and a servodrive, which provide for its most optimal operation.
EFFECT: invention makes it possible to create a temporary hydroeconomic unit that solves local power supply, irrigation, water supply, fish farming, and also provides for confinement of forest fire spread, provides for the possibility of multiple usage of the proposed structure under emergency situations.
SUBSTANCE: hydraulic accumulating power station comprises a pool located on earth surface, a water intake facility, a vertical discharge water duct, a communication shaft, an aeration shaft, an inclined shaft of power delivery, a station unit with hydraulic units, a lower pool with main chambers and an inclined transport tunnel. The lower pool additionally contains short tunnels, connecting galleries, discharge connecting water ducts and a distributing chamber. Main chambers of the lower pool are made in the form of helically arranged tunnels in plan. The station unit with hydraulic units is placed in the centre of spirals of the lower pool. Hydraulic units of the station unit by means of suction pipes and short tunnels are connected with the distributing chamber, which by means of discharge connecting water ducts arranged radially relative to it, is connected with the main chambers of the lower pool. The lower pool is tunnelled by a combined method consisting in tunnelling of the main inclined transport tunnel from the surface to underground facilities with the help of a tunnelling mechanised complex and arrangement of main chambers of the lower pool. At the same time in parallel to the main inclined tunnel an additional transport tunnel is arranged, and then the lower pool is arranged, which is a continuation of transport tunnels. The lower pool is arranged in two stages: at the first stage a pilot mine is tunnelled with an open tunnelling mechanised complex, and at the second stage, using blast-hole drilling, it is finalised to design contour. Simultaneously with tunnelling of the main chambers of the lower pool they arrange a station unit with hydraulic units, which is located in the centre of spirals of the lower pool.
EFFECT: invention makes it possible to solve a problem of placement of high-discharge hydraulic accumulating power plants in plain territories, by arrangement of a lower pool and a discharge station unit under earth at depths from 300 m to 2000 m, and to optimise works performance and to mechanise tunnelling of underground mines to the maximum, through joint usage of open production tunnelling mechanised complexes and up-to-date equipment complex for performance of blast-hole drilling.
FIELD: power industry.
SUBSTANCE: hydroelectric plant includes a housing made in the form of a vertical cylindrical chamber and a cylinder installed inside it at some distance, which form a composite channel, a compressor station interconnected via an air pipeline to a receiving chamber, a hydrojet turbine with the main generator, which is installed at the outlet of the turbine pipeline located in upper part of the receiving chamber, working fluid storage and level sensors. The plant is equipped with Pelton-type turbines with generators, the first and the second elevated tanks, additional level sensors, one of which is located in the first elevated tank, and the second one is located in the second elevated tank, and an air tank interconnected via an additional air pipeline with a check valve to the first elevated tank. Elevated tanks are installed inside upper part of the cylinder. The first elevated tank has the shape of a funnel, which is connected in the middle to the turbine pipeline. The second elevated tank is put on the first elevated tank and equipped with pressure hoses located in the first tank so that their outlets are located above the funnel opening of the first elevated tank. Pelton-type turbines are installed opposite nozzles of the hydrojet turbine along the perimeter of the receiving chamber. The receiving channel connects the receiving chamber to the second elevated tank. The storage is located in upper part of the housing. On pressure hoses and at the inlet of the turbine pipeline there installed are valves, and on some shafts with turbines there installed are flywheels.
EFFECT: lower consumption of power required for water return to water storage reservoir.
FIELD: power industry.
SUBSTANCE: hydroelectric power plant includes a channel connected to a water reservoir initiating a dynamic flow and orthogonal turbines located inside the channel. The channel represents a pipe consisting of connecting links and provided with the turbines equally spaced throughout the pipe length. Turbines are made in the form of tubular modules with a drive shaft outlet and have the possibility of installing the modules between the connecting links of the pipe. In addition, annular elements of aerodynamic profile are fixed in modules.
EFFECT: higher efficiency of a hydroelectric power plant, lower structural complexity and metal consumption of the device, improved manufacturability, installation and operation and uniform distribution of loads between turbines.
4 cl, 4 dwg
FIELD: power industry.
SUBSTANCE: hydroelectric power plant includes water intake located outside bed of river, main capacity, pressure waterway and waterway of turbines. Along the whole bed of river there arranged is n regulating water reservoirs for water collection, each of which is equipped with a filling channel connected to the river bed and made in upper place as to level and dam with the height of up to upper level, which is made in lower place as to level. Discharge pipeline interconnected with river bed and equipped with a gate valve is installed at lower point of each regulating water reservoir. The main capacity is made in the form of the main water reservoir located below regulating water reservoirs in the section with high level difference and equipped with filling channel connected to the river bed, and dam with height of up to upper level, which are made in upper and lower places respectively as to water level. Pressure waterway is installed downstream as to level of the main water reservoir and made in the form of pressure pipelines with length of not less than 12-15 km depending on river water level difference in order to obtain the required head, which leave the main water reservoir. Pressure pipelines consist of winter pressure pipeline for minimum water flow rate and n summer pressure pipelines for maximum water flow rate. Pressure pipelines are connected to turbine waterway. Hydroelectric power plant also includes compensation water body located at the head level of turbine waterway, which is connected to waterway of turbines and equipped with pump group.
EFFECT: increasing operating efficiency of hydroelectric power plant.
FIELD: machine building.
SUBSTANCE: invention refers to hydroelectric power plants. Hydroelectric power plant includes runner 2 fully submerged into water and installed so that it can be rotated, housing with half-round groove, which encloses runner 2 on one side. The other side of runner 2 is located in water stream. Runner 2 is provided with horizontal rotation axis. Housing is arranged at the river bottom and hinged on the ends of arms the other ends of which are hinged to the piles mounted into the river bottom. External surface of the housing is concentric to the groove, equipped with radially located soil washing-out nozzles, as well as cutters. Hydroelectric power plant is provided with a drive to perform backward swinging movement of the housing relative to the arms.
EFFECT: simplifying the manufacturing technology and reducing the cost of hydroelectric power plant.
3 cl, 2 dwg
SUBSTANCE: hydraulic power unit comprises a water intake, a discharge water conduit, a turbine and a drive of its generators. The hydraulic power unit water intake is made in the form of an artificial reservoir, which is built near a river. A water intake part of the discharge water conduit is connected to the artificial reservoir, and its upper edge is arranged at the level of or below the deepest natural point of the river bottom in a site of the artificial reservoir. The artificial reservoir is connected to the river by a canal or a water conduit, the bottom of which is made in the same manner at the level of or below the deepest natural point of the river bottom.
EFFECT: invention excludes impact of hydraulic power units and their construction at ecology of rivers and streams, where they are built.
FIELD: power industry.
SUBSTANCE: hydroelectric power station at water flow in cut-off basin with natural or artificial water head contains eddies in cylindrical basin and central neck of discharge outlet. With forced water flow along horizontal plane cylindrical basin 1 contains along the axis accelerator 2 with blasting chamber 3 on the one side and spreader 6 on the other side. Spread flow is directed between two side oval abutments 4 at turbine blade 5 with horizontal axis of rotation, which is installed at edge of spreader 6. Rotation of turbine 5 is transferred to gearbox 7 and generator 8. Gearbox 7 and generator 8 are located outside basin 1. Spreader 6 spreads flow into two sleeves and directs them to two lateral sides of basin 1. Then flow turns around oval abutments 4 and then directed to jet of accelerator 2.
EFFECT: device allows creation of completely independent power generation plant that does not require dam or derivational water heads and location in direct vicinity to rivers; it allows use of pressure derivation of natural water flow.
SUBSTANCE: hydraulic power plant includes a water reservoir, for instance, a river, a water intake, by means of which it is communicated in its upper course with the upper end of a supplying tunnel discharge water conduit, the lower part of which is connected with a hydraulic unit, the outlet of which is communicated with a discharge water conduit, or with a discharge tunnel water conduit, the lower end of which - with the drainage zone, for instance, with the river in its lower course. The hydraulic unit comprises a hydraulic machine, for instance, a hydraulic turbine, installed in the water conduit and kinematically connected with an electric generator. The outlet of the electric generator is connected with an electric converter, to which an electric load is connected. The supplying tunnel discharge water conduit is a directionally drilled well, and the discharge water conduit is either a directionally drilled well, or a canal.
EFFECT: invention makes it possible to expand the conditions of the hydraulic power plant application up to practically everywhere in mountain environment and to obtain all advantages of renewable energy sources during its operation.
SUBSTANCE: device comprises a block of one and more bent helical pipelines joined to each other by sides and mounted in one block. The block is fixed on the way of a flow of coastal streams to change direction of some water flows, their increased speed and introduction of these flows into a water area of bays. Each helical pipeline is made as bent at the angle from 45° to 170° with a multiturn helical surface equipped with helical grooves inside and outside of the helical pipeline at the angle to its axis in the form of pockets of polygonal shape in the form of various geometric figures with four and more sides. The distance between straight lines of the bend is equal to the length of each polygon element. Pockets on internal and external surfaces may differ both in shape and dimensions along the perimetre of the helical pipeline. The pipeline is made of sections, every of which is made in the form of a circular sector, made of a strip wound into a ring with a polyhedral surface and formation of four quadrangles of different size with two parallel sides arranged in parallel to each other. At the same time the sections are connected to each other by free sides of the specified quadrangles in the form of a hollow helical pipeline.
EFFECT: efficient treatment of stagnant and contaminated water in water areas of bays due to development of permanent circulation of pure sea water inside them.
SUBSTANCE: method includes erection of flow-through dams with locks and connection canals. To lower water level upstream the dam of the Tsimlyanskiy water-engineering system, the "Eastern part of the Tsimlyanskoe storage pond is isolated from its "Western" Part by erection of a separation dam in the water area of the Tsimlyanskoe storage pond and a flow-through dam with locks in rock bases of the island "Kozhevenniy" in the bay near the mouth of the river Chir into the Tsimlyanskoe storage pond close to the existing fairway in the water area of the Tsimlyanskoe storage pond. From the "Eastern" part of the Tsimlyanskoe storage pond between the bay in the mouth of the river "Aksay-Kurmoyarskiy" and the "Dubovskoe" stoage pond, in the valley of the river Sal, the fairway "Aksay-Sal" is constructed. Also the "Volgodonskoe branch" is constructed from the fairway "Aksal-Sal", which is designed to supply water to cooling ponds of the Rostov nuclear power plants near the town of Volgodonsk and to city water intakes. Continuous water level is maintained in the riverbed at the elevation of +36 metres, supported with the retaining flow-through dam with locks, providing for transition of vessels from the water level in the "Aksay-Sal" canal equal to +36 metres, to the water level in the "Dubovskoe" storage pond. The "Dubovskoe storage pond is developed for supply of water to the "Semikarakorskaya" branch of the fairway from the "Dubovskoe" storage pond to the retaining flow-through dam with locks designed for transition of vessels from the "Semikarakorskaya" branch of the fairway into the Don river.
EFFECT: reduced loads at retaining structures of the Tsimlyanskiy water-engineering system and safe conditions for navigation.