Hydraulic system of one basin tidal power plant with water engine with blade variable geometry

FIELD: construction.

SUBSTANCE: invention relates to hydraulic construction and hydraulic power engineering. Device is intended for technological generating head in tide water area between sea and basin cut by a dam, and passage of water flow through four power unit water conduits with sequentially installed in three rows on 4 inexpensive and easily changeable water engines with variable blade geometry, in order to head of tide water column can be used for many times. Device comprises floating tidal power plant units sequentially arranged for multiple use of water flow, dead floating units of cut-off dam, flow-through floating units, fish-ways, navigation pass (lock) or flow-through construction coupling dams, road along the dam and gantry cranes for lifting equipment. Device comprises building power unit 1, which is included in head dam front installed after its remaining life by a tidal power plant building, as well as in addition to operating tidal power plant buildings to increase power by means of temporary guards of a dam repaired section by floating units, to ensure operating other tidal power plant buildings in standard conditions during one tidal power plant building disassembly. Building power unit 1 is collected in the place of prefabricated reinforced concrete elements 1-0 in building, having a machinery room in the centre and two water conduits 1-7 adjoining at both sides, having two-four water engines 1-1 with variable blade geometry. Water engines axis are located at the level of ocean surface at maximum low tide (mark 0.00). Basin bottom has water guide channel 5 to water engines, deepened to the blade height. Water guide channel 5 is a fish-way for fish passage during the maximum low tide.

EFFECT: invention allows replacing damaged dam cutoff units of head front and buildings of operating tidal power plants without deterioration of operating other sections of the dam by inexpensive means, replacing outdated expensive types of turbines for cheap, quickly changable water engines with variable blade geometry, as well as increasing capacity of existing tidal power plants, applying new materials and new methods of construction for tidal dams taking into account engineering development.

4 cl, 12 dwg

 



 

Same patents:

FIELD: power industry.

SUBSTANCE: invention relates to hydraulic power engineering. The hydro-electric power plant contains frame-mounted 6 hydraulic turbine 1 designed with a possibility of rotation around a horizontal axis, kinematically connected with the electric generator 2, the flow shaper 5 designed as a confusor interconnected with the working channel where the hydraulic turbine 1, the anchor device, ballast vessel 11 and a guidance blade are located. In the plant the even number of hydraulic turbines 1 is used which are located symmetrically with reference to the longitudinal axis 22 of the unit along which axes of their rotation are aligned. The turbines 1 are rotated in opposite directions. The lower plane of the flow shaper 5 is placed horizontally. The ends of rods 7 of the anchor device fastened to the rope 8 interconnected with the anchor 9 are fixed on the slides 16 installed with a possibility of reciprocating movement along the stands 14 which are rigidly fixed on each side installations at its front end. The guidance blade is designed as two plates 13 fixed on the frame 6 on each side of the unit at its back end out of the hydrodynamic shadow of the flow shaper 5. Total length of the rope 8 and rods 7 exceeds the water area depth at the unit location.

EFFECT: invention provides reliable positioning of the device in the horizontal plane, at its placement without "sitting" to the water area bottom.

3 cl, 3 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

Hydraulic unit // 2534642

FIELD: power industry.

SUBSTANCE: invention relates to hydraulic unit for removal of energy from wave movement. Automatic adjustable hydraulic unit 200 for conversion of wave energy includes pump 201 intended for fluid medium pumping through hydraulic unit 200. Pump 201 has housing 202 forming chamber 203 and piston 207 allowing separation of chamber 203 into working compartment 208 and blind compartment 209. A provision is made for an activating element that is connected to piston 207. The inlet hole is interconnected with working compartment 208 of chamber 203 so that a provision of fluid medium flowing from the inlet hole to working compartment 208 of chamber 203 is provided. The outlet hole is interconnected with working compartment 208 of chamber 203 so that a possibility of fluid medium flowing from working compartment 208 of chamber 203 to the outlet hole is provided. A provision is made for a hydraulic control device having a possibility of control of pump 201 by controlling the fluid medium pressure at the inlet hole and the outlet hole so that optimisation of pump 201 output power as a response to tidal variations and/or sea state is provided. Control of the fluid medium pressure at the inlet hole and the outlet hole is performed in compliance with a control algorithm.

EFFECT: invention is aimed at achievement of higher volumes of production at lower costs.

21 cl, 12 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to power generator exploiting the water stream. Invention aims at production of power generator which can be immersed to required depth, lifted and stretched by running water. Power generator 10 comprises blades 12 secured to revolving closed chain 14 and at least one generator 60 designed to generate electric power and connected with closed circuit 14. Chain 14 extends between rotary discs 24 and moves in circles owing to thrust created by blades 12 under effects of surrounding water. Rotary discs 24 are fitted in appropriate frames 16, 18 which can be strongly secured together. Chain 14 moves freely between frames 16, 18 and around rotary discs 24. Drive 28 connected with universal joint 50 is connected to at least one rotary disc, generator 60 being connected to said joint.

EFFECT: continuous power generation.

19 cl, 10 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: machine building.

SUBSTANCE: hydroelectric turbine includes stator 12 and shaftless rotor 14. Stator 12 restricts an opening in which rotor 14 is installed with possibility of being rotated. The opening allows rotation of rotor 14 about its central axis due to its shape and size, and movement in a circumferential direction of the opening, thus moving in the direction opposite to direction of rotor 14 rotation.

EFFECT: creation of an improved turbine that is characterised with a decreased friction of bearings, which occurs at its start-up, and provides the possibility of cleaning and cooling of bearings during its functioning, which improves operating characteristics of the turbine.

12 cl, 5 dwg

FIELD: power industry.

SUBSTANCE: main and auxiliary vertical double blades are arranged on a turning cantilever. The axis of the main blade in a central part is connected to a casing on the cantilever end with a return spring, and its planes are fixed asymmetrically on the axis, i.e. with a larger surface area towards the cantilever attachment centre. The auxiliary blade has symmetrical planes and is kinematically connected to the main one through transmission ratio providing a larger turning angle to it. A multiplier is of combined type, and it has additional inner conversion relative to slow back-and-forth movement of the cantilever axis to increased one-way rotation of a multiple-pole generator. In case of an underwater design, axes of blades and cantilevers are equipped with waterproof sliding bearings excluding the need for additional sealing of inner volumes of the blade part of the cantilever and the load-carrying housing.

EFFECT: invention contributes to creation of surface and above-water, noiseless and safe wind driven units, as well as bottom hydraulic units in river, running and sea streams providing simple and compact designs with possibility of their being lifted to the surface for periodic inspection or repair.

3 cl, 5 dwg

Hydraulic turbine // 2461731

FIELD: power industry.

SUBSTANCE: hydraulic turbine with transverse flow includes rotor installed so that it can be rotated about the axis. Rotor includes at least there blades for performing the rotor rotation about the axis when it is arranged in flowing water. Rotor includes multiple elements in the form of three-dimensional structure formed of triangles. At least one of the above elements includes one of the above blades. At least one blade is elongated and has a straight line. The above line is not parallel to the above axis and does not lie with it in one and the same plane.

EFFECT: invention allows increasing the turbine strength and providing the possibility of creation of extended horizontal structure.

18 dwg

FIELD: machine building.

SUBSTANCE: proposed system comprises foundation 12, hydroelectric turbine 10 to rest on said foundation 12, and afloat sea ship 14 that allows detachment of said foundation. Ship 1 allows detachment of foundation 12 and its lowering, and/or lifting to position right under the ship, and its attachment to ship. Foundation 12 comprises support 32 to pass upward through ship 14 when foundation 14 is attached to ship from below. Ship 14 has opening 30 for foundation 32 to pass through when foundation 12 is mounted under ship 14 to allow turbine 10 mounted on support 32 to pass there through.

EFFECT: simplified mounting.

13 cl, 7 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed turbine comprises vaned rotor 34 vanes being arranged between inner ring 32 and outer ring 33. It is provided also with retaining appliances including mounting flanges 22, 23 and antifriction appliances including inserts 31 and bearings 72 limiting rotor biaxial displacement relative to housing 21. Water flowing in either direction actuates the turbine while retaining and antifriction means allow rotor to displace along the axis in both direction under effect of bidirectional water flow. Antifriction means limiting rotor axial displacement feature, preferably, increased thickness to allow rotor, as said means wear, to move axially relative to housing 21.

EFFECT: turbine operating in bidirectional water flow without turbine reorientation, axial displacement of rotor.

9 cl, 7 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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