Hydro-electric power-plant

FIELD: power industry.

SUBSTANCE: hydro-electric power plant contains mounted on the displacement base two hydraulic turbines 1, placed symmetrically about the longitudinal axis 4, along which its axis of rotation 3 is oriented, made with ability of reverse rotation, kinematically connected to the electric generator 5, the anchor device 6, ballast tanks 7. The rotors 2 of hydraulic turbines 1 are provided with screws 9 of variable pitch, the blades of which are arranged with ability of forced rotation. Displacement base is made streamlined. Along the longitudinal sides of the base the wells 12 are made. The hydraulic turbines 1 are installed at the ends of the towers 13, the second ends of which are provided with ballast 14. The towers 13 are passed through the wells 12 and mounted on the horizontal axis 15, with ability to swing in the wells 12 in the planes parallel to the axis 4. The ballast 14 weight, taking into account the size of the lower tower 13 is sufficient to hold the longitudinal tower axis 13 vertically at rotors 2 rotation.

EFFECT: efficiency increase of flow power conversion into the power, that is used to rotate the generator.

4 cl, 3 dwg

 



 

Same patents:

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: group of inventions relates to a device for generation of energy from fluid medium and to a blade used in it, and can be used in particular in wind generators. A blade for the device for energy generation from fluid medium includes a guide surface inside which fluid medium shall move to rotate the blade about rotation axis Xo that together with axes Yo, Zo forms an orthogonal system of coordinates Xo, Yo, Zo. The above blade is restricted with front edge (4) and rear edge (5), constricted between front edge (4) and rear edge (5) and passes along midline (10). Projection of midline (10) onto plane Xo, Yo has the first curvature. Plane Xo, Yo is formed with a possibility of containing midline (10) at front edge (4).

EFFECT: group of inventions is aimed at improvement of output power of an energy generation device.

15 cl, 8 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

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: power industry.

SUBSTANCE: unit contains the bladed wheel immersed into the water flow under the river ice cover. The wheel by means of the shaft installed in the cylindrical housing on bearings is kinematically connected with the generator. The housing is fixed in a vertical position in the ice cover in such a way that its top part together with the generator is located above the ice cover surface. The top part of the housing is designed with formation of adjusting disk to which the generator is attached. The unit also comprises a base board with longitudinal rectangular cut in the middle, and two supports. The base board length is greater than the ice-hole length along the direction of the water flow in the river. By means of two longitudinal and transversal surfaces of the cut the board is able to interact with the external surface of the housing. Supports are able to interact with the base board and the adjusting disk and are placed perpendicular to the axis of symmetry of the basic board.

EFFECT: creation of the simple hydro-electric power plant with a possibility of its use for power generation utilising the energy of hydraulic flow of the river covered with ice.

2 cl, 3 dwg

Power plant // 2552589

FIELD: power engineering.

SUBSTANCE: power plant relates to the field of small power, namely to plants using energy of river flow. A power plant comprises a body, a hydraulic engine 27 is installed in it with a working element, a power generator 18, installed above the hydraulic engine 27. The working element is installed as capable of interaction with the water flow arriving via the receiving inlet into the working zone of the body, leaving it and being captured by the river flow, increasing the speed of flow outlet. The plant is equipped with a freewheeling clutch 29 and a wind engine 28 installed in series in a row above a power generator 18 and a hydraulic engine 27. Working elements of the hydraulic engine 27 are made as assembled from radial blades installed on axes between support rings mounted on the shaft by means of spikes. Blades are made as capable of rotation on axes to limiters and automatic installation into working and non-working position by the fluid flow. The wind engine 28 is made as acting similarly to the hydraulic engine 27. The plant is made as capable of rotation in the bearing installed on the head. The head is installed on the plant as fixed.

EFFECT: invention is aimed at provision of the possibility of continuous operation of a power plant.

5 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to hydraulic power plants and methods of power production. The main element of the hydraulic power plant is aerodynamic surface in the form of a wing, in the body of which there is a channel that connects opposite surfaces of a wing. Water sucked into this channel rotates the turbine and the power generator connected to it. The plant may be stationary or mobile.

EFFECT: design improvement.

9 cl, 14 dwg

FIELD: power industry.

SUBSTANCE: invention can be used in hydraulic power industry as an energy conversion device of a gravity water flow to electrical energy. A damless hydro-electric power plant includes a blade wheel and a housing installed on a support. The central vertical part of the housing is made in the form of a hollow sealed cylinder filled with water or air when necessary. The horizontal part of the housing, which is rigidly attached to a cylinder, represents a truss, on which there arranged is an annular track for support rollers of a bladed wheel, a bladed wheel rotated about the hollow cylinder, a support of driven sprocket 6 of the first stage of a kinematic circuit for transmission of revolutions from the bladed wheel to an electrical energy generator, side enclosures functionally performing a role of input and output diffusers A, B.

EFFECT: invention is aimed at improvement of an efficiency factor, simplification of a design and increase of unit power.

4 cl, 2 dwg

FIELD: power industry.

SUBSTANCE: method of flowing medium energy utilisation involves guiding a fluid medium flow to diffuser 11 where the flow is accelerated and then fed to duct 3 where it is additionally accelerated due to gradual duct 3 cross-section reduction, further conversion of kinetic flow energy into mechanical power by guiding the flow to at least one work wheel 5 with blades 6, installed in the duct 3, and further deceleration of the flow. Blades 6 of the work wheel 5 are tapered in width from inlet towards the outlet edge, side surface of the blades is convex, and outlet edge is shifted against inlet edge.

EFFECT: increased flowing medium energy utilisation rate.

7 cl, 3 dwg

FIELD: power industry.

SUBSTANCE: invention relates to flow energy converters located along it and taking hydraulic energy at the distance determined by the converter length. A mini hydro-electric power plant includes a screw consisting of a cylinder with blades on its surface. The cylinder is connected to the generator and located along a water flow. The blades are made in the form of several pipes uniformly located along the cylinder surface along a helicoid line. A confuser with maximum cone diameter equal to the cylinder diameter and a diffuser the minimum diameter of which is equal to a sum of the cylinder diameter and two diameters of pipes at their inlet are connected to the cylinder. Outlet ends of the pipes are provided with tips installed at a tangent to cylindrical surface.

EFFECT: invention is aimed at increase of efficiency and specific output power owing to increasing the effect of obtaining higher pressure from a moving flow and simultaneous use of a jet component of the flow.

2 cl, 1 dwg

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: power engineering.

SUBSTANCE: proposed hydroelectric station includes energy converter consisting of chain of hydraulic turbines. Hydraulic turbine is built on hollow carrying shaft-cylinder with conical fairings on bases inscribed into inner ends of blades-semicylinders whose outer ends are clamped together in several places over length of hydraulic turbine by narrow rings-hoops and form multiblade cylinder with hollow belts with ballast on end faces providing neutral buoyancy of hydraulic turbine. Adjustable ballast in hollow part of carrying shaft-cylinder provides variable buoyancy of hydraulic turbine to submerge hydraulic turbine in water completely at neutral buoyancy or rising to surface. Energy converter is connected with electric generators arranged on the bank through system transmitting rotation and arranged in bank cavities. Rotation transmitting system employs different modes of transmission of rotation and connection and movable power unit with travel motion mechanism by means of which it displaces inside cavity. Movable power unit is connected with energy converter and, moving vertically, can set power converter at required depth.

EFFECT: increased efficiency.

4 dwg

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