Free-stream turbine with flow energy concentrator and hydraulic unit with such turbine

FIELD: power industry.

SUBSTANCE: in the opening of the supporting frame (1) a rotating rotor with paddles (4) attached to its shaft (2) is installed. Flow energy concentrator is designed as two partitions (6) of aperture, the ends (7) of which adjoin with clearance (8) to the cylindrical surface (9), swept by blades (4) when the rotor is rotating. In the partitions along the ends (7), on one or both sides of the opening of the frame (1), grooves (10) of the rounded profile are formed.

EFFECT: increase in the coefficient of utilisation of the flow kinetic energy and increase in the cost-effectiveness of material on the concentration of free-flow energy.

7 cl, 3 dwg

 



 

Same patents:

Radial turbine // 2533602

FIELD: machine building.

SUBSTANCE: water having potential energy of total head is delivered from a water reservoir to the unit for feeding of operating medium to branch pipe 10. The water having the maximal speed at this head comes from the nozzle 11 to the annular cavity 5 between the casing 1 and the impeller 3. Water having kinetic energy moves there in circle. Water coming to the annular cavity 5 from the nozzle 11 forces out the excess water having kinetic energy from the annular cavity 5 to the cavity of blades 4, where it transfers its kinetic energy to the impeller 3 providing for the rotation of the latter. Water is drained without resistance from the blades 4 of the impeller through its central part. All blades 4 of the impeller 3 are loaded simultaneously and equally, regardless of the distance to the nozzle.

EFFECT: simplified design, improved reliability and simultaneous simplification of turbine control.

3 cl, 2 dwg

FIELD: construction.

SUBSTANCE: pressurised compressed air is supplied into a water flow in a discharge water conduit. Some water flow from the water conduit is taken to a body 4, broken into separate jets and sent to a lower pressure area 16. Further separate water jets are broken into small drops and saturated with air. The produced gas and liquid flow is sent to hollow pylons 9 arranged across the flow. Water is supplied via pylons 9 into the gas and liquid flow. Due to narrowing and expansion of a gas and liquid flow, pressure surges are formed in it, when water drops are additionally ground with further saturation of water with air and formation of an emulsion structure. The emulsion gas and liquid flow in the channel 18 is changed to a bubble flow mode, and water saturation with air is continued due to static pressure growth. Afterwards some water flow is returned into a water conduit. Simultaneously some compressed air is sent from a pipeline 3 into a channel 11 arranged in a central body 10, where it is speeded up. Afterwards the speeded flow is sent into a wide section of the channel 11, and a lower pressure zone is created in it, through which water is sucked via hollow pylons 9 from the environment with subsequent mixing of the latter with compressed air to form the gas and liquid flow and simultaneous saturation of water with air. Afterwards the gas and liquid flow is drained into the space of the discharge water conduit that surrounds the body 4.

EFFECT: improved process of aeration of water supplied into a hydraulic turbine.

2 cl, 3 dwg

FIELD: power industry.

SUBSTANCE: hydro-electric power plant (HEPP) includes orthogonal turbine with three-tier rotor, with offset of blades along tiers through 120. Number of blades in a tier is accepted at least as one blade. On side walls of turbine chamber there made are profiled projections with offset along flow axis by the value of 0.1 to 0.2 of turbine rotor diameter. Working machines, and namely electric generating, water pump, heat pump plant, acoustic horn is connected to outlet shaft of turbine. Automation devices of turbine and working machines are introduced to hydro-electric power plant.

EFFECT: reduction of costs for energy generation by increasing the turbine speed, for provision of self-acceleration and increase in efficiency of turbine by means of the proposed design of rotor and profile of turbine chamber due to increasing the power of working jets, for provision of drive of serial working machines without electric power generation.

2 dwg

Minipower plant // 2439364

FIELD: electricity.

SUBSTANCE: minipower plant contains power channel and generator. Electric power is generated by means of artificial whirlpool creation in tank with vertical shaft installed inside it and staged discs with blades installed on the shaft. Inner cavity of the tank is performed as conic frustum with rotatable wheel constituting body frame with offtake pipes at the bottom of conic frustum. Wheel body frame is connected to shaft. Water-flow regulator with option of outlet diameter change is preferably installed at the wheel. Offtake pipes are located tangential to body frame in the form of swastika. Generator of is installed at the top of shaft and wheel is installed below.

EFFECT: simplification of design and improvement of minipower plant efficiency.

2 cl, 3 dwg

FIELD: power industry.

SUBSTANCE: hydraulic flow energy conversion method consists in the fact that conversion is performed by changing the translational movement of flow to rotational movement of liquid and rotor of hydraulic turbine in the volume isolated from the main flow. At that first stage - owing to cutting off water flow to turbine and gradual narrowing of water line for the purpose of translational movement speed increase. At the second stage - owing to arranging water rotation simultaneously about two axes lying in perpendicular planes: rotation about hydraulic turbine rotor axis, and toroid-shaped vortex process at the bottom of restricted volume. At the third stage - owing to shaping accelerated ascending rotational-translational flow intended to spin the rotor and performing recuperative function.

EFFECT: higher efficiency of conversion of hydraulic flow energy, simpler design, smaller overall dimensions of turbine, and higher efficiency of the device.

5 cl, 6 dwg

FIELD: power industry.

SUBSTANCE: hydroelectrohydrogen generator (HEHG) includes the tank filled with water solution of electrolyte, installed on vertical shaft and connected to rotation drive; one of electrodes is housing of tank, and the other electrode is fixed on fixed frame with possibility of vertical movement, supply channels of water and water solution of electrolyte, removal of electrolysis products and tank are isolated from each other and from environment by means of air gate valve; on the outside of the tank there additionally installed is fixed cover inside which, in order to create the required quantity of heat between tank and cover, there are electric heaters fed with some part of electric energy generated with hydroelectrohydrogen generator, and vertical shaft of the tank with water solution of electrolyte is connected to hydroturbine shaft through two-stage cylindrical parallel-shaft reduction gear unit with involute tooth system, transmission ratio of one stage of transmission AND 1=10 and the second stage - AND 2=11.2, which allows rotating the tank with water solution of electrolyte of up to 20000 rpm.

EFFECT: increasing efficiency of generator, simplifying electrolysis process and increasing its efficiency, reducing the cost of hydroelectrohydrogen generator.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: to generate electric power from water flow accelerated, naturally or artificially, in enclosed chute, proposed river plant comprises river water intake, spillway chute or pressure pipeline, swirled accelerating reservoir to force water flow onto turbine and generator coupled with the turbine. Accelerating reservoir represents a spiral chute with its outlet arranged shifted under bottom of the chute inlet. Monorails are arranged closed along the chute outer and inner sides to move on turbine rollers. Turbine represents spatial segment structure with attached to its bottom from outside to stay in contact with water flow in chute. Vertically moving baffle is mounted at the chute water flow outlet.

EFFECT: self-contained power supply, possibility to construct like river plant independently.

2 dwg

FIELD: power industry.

SUBSTANCE: invention can be implemented at tidal power plants, low head river hydro-power plants, wave power plants, and at wind-turbine electric plants with concentrators of wind power. The turbine consists of rotor 1 with blades 2 of wing-shaped profile installed across flow-through chamber 3. At least one cross lug 6 is made in chamber 3; upper facet 7 of lug with a gap adjoins surface of a cylinder swept off with blades 2. In section perpendicular to axis of rotor 1 the side facet of the cross lug facing supplying aperture 4 of flow-through chamber 3 is concave; while at least one tangent to this facet forms acute angle with a section of straight line connecting tangent point with axis of rotor 1; this acute angle is directed to supplying aperture 4 of flow-through chamber 3.

EFFECT: increased efficiency of turbine due to reduction of reference power of idle jets in flow-through chamber of orthogonal turbine.

10 cl, 6 dwg

FIELD: power engineering.

SUBSTANCE: axial hydraulic turbine comprises guide vane block, vanes 1 of which, being made as curved and inverted in direction of impeller rotation, are fixed with the possibility of rotation, impeller installed in chamber 2, with blades 3 of curvilinear shape, fixed in body 4, installed on shaft 5, water supply and water drain parts 6 and 7. Guide vane block is made of coaxially arranged external and internal bodies 8 and 9 and blades 1, with their some ends fixed on internal body 8, and with the other ends - connected to external body 9 with the help of threaded joints with the possibility of rotation. Blades 3 of impeller are fixed on its body 4 by means of threaded joint with the possibility of rotation. Chamber 2 of impeller is connected with its one end to water drain part 7, and with its other end - to external body 8 of guide vane block attached to water supply part 6 of curvilinear shape, and body 4 of impeller is connected to internal body 9 of guide vane block installed on shaft 5. At the same time shaft 5 is located horizontally relative to plane of impeller rotation, is installed by means of bearing units 13 on supports 14, fixed in frame 15, and may be connected to asynchronous motor 17.

EFFECT: simplified design, expansion of operational resources and reduced labour intensity of manufacturing with preservation of high efficiency factor of axial turbine.

5 dwg

Hydraulic turbine // 2306452

FIELD: hydraulic power engineering.

SUBSTANCE: invention can be used for converting energy of small water flows with low flow rates and heads into electric energy. Proposed hydraulic turbine has spiral case rigidly connected with two ring belts of stator between which vanes of guide assembly are installed, wheel arranged in case and rigidly connected with shaft, water supply and water outlet parts each vane of guide assembly is made in form of bent flat plate with angle between bent parts being 160-170° and ratio of length of one part of plate to length other part pointed to side of wheel is 1/1.5 - 1/2.0. Each vane is rigidly secured by sides on ring belts of stator, one part of flat plate being attached at angle of 40-45° to tangential line of outer diameter of ring belts of stator, and other, pointed to side of wheel, at angle equal to 10-20° to tangential line of inner diameter of ring belts of stator. Vanes are turned in direction of rotation of wheel, and number of vanes of guide assembly is chosen with due account of the fact that distance between two adjacent vanes is 0.2-0.3 m and width of each ring belt of stator is 0.1-0.2 outer diameter of wheel. Used as wheel is impeller of centrifugal pump rigidly installed on shaft arranged horizontally relative to plane of rotation of wheel and mounted in supports by means of bearing units. Said supports are rigidly connected with two discharge pipes of bent form connected by some ends to opposite sides of wheel case and by others, to water outlet part. Shaft can be connected by means of reduction unit with induction motor coupled with automatic control system including switching and measuring equipment unit with connected gangs of field capacitors, thyristor converters, useful load and regulating, control and protection unit connected with thyristor converter unit to which ballast load and field capacitor units are connected.

EFFECT: reduced labor input in manufacture and simplified design at preservation of high efficiency.

5 dwg

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

Downcomer // 2556452

FIELD: machine building.

SUBSTANCE: downcomer contains input and main sections with walls limited by surfaces of rotation. Walls of input and main sections are provided with internal superhydrophobic film coating. Wall of the main section is made in form of connected power mesh and internal superhydrophobic film with system of microholes. Axes of the microholes make with the pipe axis directed from input section to output of the main section the angle from 90 to 160 degrees.

EFFECT: reduced lifting force.

2 cl, 3 dwg

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