Hydraulic unit

FIELD: electricity.

SUBSTANCE: hydraulic unit contains the hydraulic turbine and the electric generator. The channel of the hydraulic unit housing is formed by a surface of the channel of the electric generator rotor to which the ends of vanes of the hydraulic turbine rotor are rigidly fastened. The rotor of the electric generator contains the barrel with a cylindrical ledge in which the ring groove with magnetic system is made. The external surface of the rotor forms the working gap with the surface of the cavity of the laminated core of the stator fitted with grooves in which the winding coils fixed by wedges are laid. The stator with windings is placed in a tight cavity of the housing. The working gap of the rotor is tightly separated from the named housing cavity. The housing includes boards, detachably and tightly fastened to the cylindrical housing, and its internal surface is fitted with a groove in which the package of cores of the stator fitted on end faces with press sheets and fixed by a split ring is placed. Between sidewalls of the cylindrical ledge and the surfaces of boards the thrust bearings are installed. Between the end surfaces of the rotor and surfaces of cylindrical holes of boards the radial bearings are installed. The volume inside which the radial bearings are installed, is pressurised from a gap between the inlet and outlet channels and the housing channel.

EFFECT: increase of service of the hydraulic unit and its electric generator.

3 cl, 4 dwg

 

The invention relates to hydropower, in particular to a power unit driven by a fluid flow, and can be used to convert the energy of the current environment, such as rivers flow to electrical energy.

Known hydraulic unit containing guide vanes, the vanes of which is made curved shape and deployed in the direction of rotation of the impeller, mounted with possibility of rotation, the impeller placed in the chamber, with blades curved shape fixed to the housing mounted on the shaft, power and drainage. In this guide device is made of upper and lower rings placed between the vanes mounted rotatably through the mechanism of rotation of earrings connected with blades, levers and regulating ring associated with the servomotors. The shaft is located vertically relative to the plane of rotation of the impeller, and the power part is made in the form of the volute (Smirnov I. N. Hydraulic turbines and pumps. Proc. settlement for energy. and Polytechnic. universities. - M.: Higher school, 1969. - S. 35).

The disadvantages are the complexity of the design due to the use of a rotation mechanism for changing the position of the guide blades of the apparatus associated with the servomotors and the labour�manufacture capacity, due to the use of large metal power and drainage parts and the impeller.

The closest to this invention the device is a hydraulic unit comprising a rotor of a turbine provided with blades made with the possibility of rotation of the rotor of an electric generator installed in the channel of the housing of the generator, inlet and outlet channels (see RF patent №2371602, IPC F03B 3/00, F03B 13/00, 2009).

The disadvantage of the prototype is the low efficiency due to the shock of the entrance of water flow on the blades of the guide vanes as well as the design complexity, high intensity and complexity of manufacturing, and hence the high cost.

The problem to be solved by the proposed technical solution is to significantly increase the reliability of the hydro and electric generator, simplifying the design, reducing friction in bearings.

Technical result achieved when solving a task, expressed in the increase of the hydro resource and its generator, increasing the reliability of operation, a significant reduction of friction in the bearings, increasing the efficiency of the generator, reducing the weight of the rotating parts, the increase in the peripheral speed of the inductor of the generator.

The problem is solved in that �hydrograhic, containing the turbine rotor provided with blades made with the possibility of rotation of the rotor of an electric generator installed in the channel of the housing of the hydraulic unit, inlet and outlet channels, is characterized in that the channel of the housing of the hydraulic unit is formed by the surface of the channel of the rotor of an electric generator, which is rigidly fastened to the ends of the blades of the turbine rotor, wherein the rotor of the electric generator includes a sidewall, the outer surface of which is provided with a cylindrical projection, in which an annular groove in the cavity of which is mounted the magnetic system, wherein the external surface of the rotor forms a working air gap with addressed to him by the cavity surface of the laminated stator core provided with slots, in which stacked coil windings are fixed by wedges, while the stator windings are housed in a sealed cavity of the housing of the hydraulic unit, wherein the running clearance of the rotor is hermetically separated from the body cavity of the hydrounit, in addition, the housing of the hydraulic unit includes shields, detachably and hermetically bonded to the cylindrical body, while its inner surface is provided with a groove in which is placed the package of the stator core, provided on the ends of the cover sheets and recorded a split ring, in addition, between the side wall of the cylindrical protrusion � facing to the surfaces of the shields installed thrust bearings, and between the end surfaces of the rotor and is given to them by the cylindrical surfaces of the holes of the boards installed radial bearings, in addition, the volume, in which the radial bearings are sealed from the gap between the inlet and outlet channel of the housing of the hydraulic unit.

In addition, the rotor is preferably made of a nonmagnetic material, magnetic system, mounted an annular groove made on the scheme of Helbah or with tangential magnetization.

In addition, the rotor is preferably made of a nonmagnetic material, comprises a cylindrical sleeve of a material having high magnetic permeability forming the bottom of the annular groove, wherein the magnetic system, mounted in an annular groove made by the scheme with radial magnetization.

Thus the essential features of the characterizing part of the claims solve the following functional tasks.

Signs "...the channel of the housing of the hydraulic unit is formed by the surface of the channel of the rotor of an electric generator, which is rigidly fastened to the ends of the rotor blades of the turbine..." simplify the design of hydraulic turbine, increase the reliability of the design, increase the efficiency of the hydraulic unit.

Signs indicating that the rotor of the electric generator includes a sidewall, the outer surface of which sleep�wife cylindrical projection in which an annular groove in the cavity of which is mounted a magnetic system", provide the necessary rigidity and structural strength of the rotor of electric machines with minimal weight and allows you to place the inductor in the annular groove.

Signs indicating that "the outer surface of the rotor forms a working air gap with addressed to him by the surface of the cavity of the laminated core of the stator to form the stator of the generator.

Signs indicating that the stator is provided with 'grooves in which the stacked coil winding is fixed by wedges, while the stator windings are housed in a sealed cavity of the housing of the hydraulic unit, in addition, the running clearance of the rotor is hermetically separated from the body cavity of the hydrounit, in addition, the housing of the hydraulic unit includes shields, detachably and hermetically sealed cylindrical enclosure", ensure efficiency of the generator and prevent the ingress of moisture to the inside of the generator.

Signs indicating that the internal surface of the stator is provided with a groove in which is placed the package of the stator core, provided on the ends of the cover sheets and recorded a split ring to" fix the lamination of the stator in the housing of the hydraulic unit.

Signs "...between the cylindrical side walls of the ledge and turned to him pove�the surfaces of the boards installed thrust bearings allow the formation of an effective thrust magnetic bearing power unit.

Signs indicating that "between the end surfaces of the rotor and is given to them by the cylindrical surfaces of the holes of the boards installed radial bearings allow the formation of an effective radial magnetic bearings of the hydraulic unit.

Signs indicating that "the volume, in which the radial bearings are sealed from the gap between the inlet and outlet channel of the housing of the hydraulic unit" seepages into the cavity of the location of magnetic bearings and, thereby, provide the required carrying capacity of the magnetic bearings.

Signs indicating that the rotor is preferably made of a nonmagnetic material, magnetic system, mounted an annular groove made on the scheme of Helbah or with tangential magnetization" create rational way-circuit of magnetic flux of the inductor and ensure the creation of strong magnetic fields.

Signs indicating that the rotor is made preferably of non-magnetic material, comprises a cylindrical sleeve of a material having high magnetic permeability forming the bottom of the annular groove, wherein the magnetic system, mounted an annular groove, made by the scheme with radial magnetization specify one of the efficient ways of circuit�Oia magnetic flux inductor with radial magnetization and ensure the creation of strong magnetic fields.

Fig.1 shows a longitudinal section of the hydraulic unit of Fig.2 is a cross section in the magnetization of the inductor according to the scheme of Helbah, Fig.3 - cross section with tangential magnetization of the inductor of Fig.4 is a cross section when a radial magnetization of the inductor.

The drawings show a hydraulic unit housing 1, the stator core 2, the slots 3 of the stator coil winding 4, the wedges 5, the groove 6 of the housing 1, push the sheets 7, 8, the split ring 9, the shields 10 and 11 of the housing 1 of the hydraulic unit, the sidewall 12, the annular groove 13, the cylindrical sleeve 14, the permanent magnets 15 and 16, the brace 17, the fixed part 18 and 19 of the annular radial magnetic bearings, the stationary part 20 and 21 of the annular magnets of the thrust magnetic bearing, the movable parts 22, 23 and 24, 25 magnets radial and thrust magnetic ring bearings, mechanical seals 26, 27, 28, 29, guide vanes 30, the sidewall 31, a diffuser 32, the fairing 33 and blades 34.

The unit contains a water turbine and generator. The channel of the housing 1 of the hydraulic unit is formed by the surface of the channel of the rotor of the generator. In the housing 1 of the hydraulic unit is mounted stator consisting of a laminated core 2, the grooves 3 which are stacked coil winding 4, is fixed by wedges 5. The inner surface of the housing 1 is provided with a groove 6 in which is disposed a package of core 2 of the stator, is provided with �on the ends of the cover sheets 7, 8 and recorded a split ring 9. The housing 1 on both sides equipped with shields 10, 11, detachably and hermetically bonded to the cylindrical body 1 of the hydraulic unit.

The rotor of the electric generator includes a sidewall 12 of non-magnetic material (e.g. stainless steel), the outer surface of which is provided with a cylindrical projection, in which an annular groove 13, the bottom of which is a cylindrical sleeve 14 of non-magnetic material. On the outer surface of the cylindrical sleeve 14 are arranged permanent magnets 15 and 16 of material neodymium-iron-boron with tangential and radial magnetization and together forming a magnetic system of Albaha (Fig.2). Permanent magnets 15 and 16 are glued to the outer surface of the cylindrical sleeve 14, and for strength to them may be wearing a brace 17, for example, of carbon fiber. With tangential magnetization inductor consists of magnetic strips 15, magnetized in opposite tangential direction, and planks (poles) 16 of a material with high magnetic permeability (Fig.3), and a cylindrical sleeve 14 is made of a nonmagnetic material. When the radial magnetization inductor consists of a longitudinal magnetic strips 15, magnetized radially in alternating circumferentially with non-magnetic strips 16 (Fig.4), causes the�m cylindrical sleeve 14 is made of a material with high magnetic permeability. The magnetic strap is made of a material neodymium-iron-boron.

The shields 10 and 11 of the generator contains an annular cavity in which is located the stationary annular radial magnetic bearings 18 and 19. The shields 10 and 11, moreover, provided with a second annular cavity in which is located the annular magnets 20 and 21 of the stationary thrust magnetic bearing. Movable and stationary parts of each magnetic bearing are arranged opposite each other with a clearance. The magnets are all magnetized magnetic bearings in the axial and radial directions according to the scheme of Albaha.

The sidewall 12 of the rotor of the generator with one hand contains two annular cavity designed to accommodate the moving parts 22 and 24 of the annular thrust and radial magnetic bearings. The other side of the shell 12 of the rotor comprises two annular cavity designed to accommodate the moving parts 23 and 25 annular thrust and radial magnetic bearings.

The outer surface of the rotor of the generator forms a working air gap with addressed to him by the surface of the cavity of the laminated core of the stator 2, wherein the running clearance of the rotor is hermetically separated from the cavity of the housing 1 of the generator.

The annular gaps between the boards 10, 11 and the sidewall 12 is provided with end seals 26, 27 and 28, 29 for the pre�repulsion of water ingress into the non-magnetic gaps of the magnetic bearings and the generator.

Turbine contains inlet and outlet channels, which is set between the channel of the housing 1 of the hydraulic unit. The inlet channel includes guide vanes 30 and sides 31. The outlet channel is made in the form of the diffuser 32.

The turbine rotor is made inside of the rotor of the generator, provided with a cowl 33, which is rigidly mounted blades 34 of the turbine is covered by the sidewall 12 of the rotor of the generator.

Manufacture and Assembly of the stator of the generator. From the stamped electrical steel sheets collect the core 2 of the stator and seal it by welding the grooves on the outer cylindrical surface. The assembled stator core is installed in the housing 1 is assembled with extreme pressure sheets 7, 8 and fixed split ring 9. In isolated the slots 3 of the stator coil 4 is placed windings, set the wedges 5 and subjected to impregnation and drying.

On the inner cylindrical surface of the panels 10 and 11 is mounted on the adhesive is pre-magnetized in the radial and axial directions of the annular permanent magnets 18 and 19 of the radial magnetic bearings in strict accordance with their location in Fig.1. On the inner end surface of the annular cavities of the panels 10 and 11 is mounted on the adhesive is pre-magnetized in the radial and axial directions of the annular magnets 0 and 21 of the thrust magnetic bearing in strict accordance with their location in Fig.1.

Make the sidewall 12 of the rotor of the generator. In it is rigidly fixed with the blades 34 of the turbine. In the annular groove 13 of the rotor set of the cylindrical sleeve 14 and in accordance with the magnetization of the inductor is mounted on the adhesive composite ring of permanent magnets 15 and 16. If necessary, wound bandage 17, for example, of carbon fiber. On the end surface of the shell 12 glued permanent magnets 24, 25 of the thrust magnetic bearings. To annular projections of a hollow cylinder paste annular permanent magnets 22, 23 of the radial magnetic bearings. Mounted on the body 1 of the shield 11 and is fixed with screws. Install the generator rotor in the cavity of the stator. Then install the shield 10 and fasten it with screws to the housing 1. With proper Assembly, the generator rotor can rotate freely in the radial and thrust magnetic bearings without touching the stator 2 and the shields 10 and 11.

In the annular gap between the panels 10 and 11 and the sidewall 12 install mechanical seals 26, 27 and 28, 29.

On one side of the housing 1 of the hydraulic unit sets the sidewall 31 of the guide vanes 30, on the other hand the discharge channel (diffuser 32) and fix them with screws.

The hydraulic unit operates as follows. The water passes through the inlet channel (inlet guide vane 30 and the sidewall 31) and enters into the working lopatki turbines, which results in rotation of the rotor of the generator. When the rotor rotates and the inductor. His alternating magnetic field induces EMF in the coil winding 4 of the stator core 2. When connecting the load to the generator terminals electric current - the mechanical energy of the turbine converted to electrical energy delivered to the consumer. The values of the voltage and frequency of the generated alternating current dependent on the rotational speed and number of poles of the rotor, and the magnitude and nature of the load resistance.

1. The unit containing the turbine rotor provided with blades made with the possibility of rotation of the rotor of an electric generator installed in the channel of the housing of the hydraulic unit, inlet and outlet channels, wherein the channel of the housing of the hydraulic unit is formed by the surface of the channel of the rotor of an electric generator, which is rigidly fastened to the ends of the blades of the turbine rotor, wherein the rotor of the electric generator includes a sidewall, the outer surface of which is provided with a cylindrical projection, in which an annular groove in the cavity of which is mounted the magnetic system, wherein the external surface of the rotor forms a working air gap with addressed to him by the cavity surface of the laminated stator core provided with slots, in which stacked coils about�ODI, fixed by wedges, while the stator windings are housed in a sealed cavity of the housing of the hydraulic unit, wherein the running clearance of the rotor is hermetically separated from the body cavity of the hydrounit, in addition, the housing of the hydraulic unit includes shields, detachably and hermetically bonded to the cylindrical body, while its inner surface is provided with a groove in which is placed the package of the stator core, provided on the ends of the cover sheets and recorded a split ring, in addition, between the side wall of the cylindrical protrusion and facing to the surfaces of the shields installed thrust bearings, and between the end surfaces of the rotor and is given to them by the cylindrical surfaces of the holes of the boards installed radial bearings, in addition, the volume, in which the radial bearings are sealed from the gap between the inlet and outlet channel of the housing of the hydraulic unit.

2. Hydraulic unit according to claim 1, characterized in that the rotor is preferably of a nonmagnetic material, magnetic system, mounted an annular groove made on the scheme of Helbah or with tangential magnetization.

3. Hydraulic unit according to claim 1, characterized in that the rotor is preferably of a nonmagnetic material, comprises a cylindrical sleeve and� material with high magnetic permeability, forming a bottom annular groove, wherein the magnetic system, mounted in an annular groove made by the scheme with radial magnetization.



 

Same patents:

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 generation.

SUBSTANCE: invention relates to power plants and particularly to an apparatus for improved hydropower generation at existing impoundments. An apparatus for generating power through water impoundment comprises a frame 60, configured for transportation and installed in or connected to the water impoundment, a group of power generating cells placed in the frame 60 in multiple predetermined positions. The cells comprise selectively detachable, interlocked, stacked modules, vertically mounted in the frame and including a generator module 62 and a turbine module 68. The modules are interchangeable at different positions in the frame 60 without interrupting power generation in other cells. The cells are installed to obtain energy resulting from water impoundment. The cells are configured to convert the said energy by passing water through a turbine and rotating the turbine in each cell.

EFFECT: invention is aimed at designing a power generating apparatus with a variable configuration.

19 cl, 15 dwg

FIELD: power industry.

SUBSTANCE: movable flow-through hydraulic power station contains pontoon 1, fixed with anchors 2, body of water pipeline, hydraulic drive, electric current generator, control mechanisms. Body is made in the form of two hollow cylindrical pipelines 5 and 6 arranged coaxially one after another. First of the pipelines of larger section is turned by its free front end towards the water stream, the rear end of which is connected by means of cone hollow insert 7 to the front end of the pipeline of smaller section, the second end of which is open. Body is mechanically coupled with the energy unit 8. Hydraulic drive and electric current generator, the shafts of which are interconnected, are located inside this unit. Body and energy unit are attached to the bottom of the pontoon 1. Pressure tube 46, made in the form of Pitot tube, the free bent end of which is turned towards the moving water stream, and the other end through the stopcock 47 is connected to the inlet tube of turbine of hydraulic drive and its outlet tube is connected to the interior cavity of housing of minor section, is installed inside the housing of larger section.

EFFECT: design simplification, increase of efficiency, improvement of air-tightness and increase of quantity of power supplied to the consumer.

8 dwg

FIELD: energy.

SUBSTANCE: hydroelectric power station comprises a pipe-water passage 2 with a hydraulic turbine 6 mounted in it, connected to the generator 7. The pipe-water passage 2 is mounted in the water reservoir and laid on the bottom of the water reservoir to the platform 8 attached to the coast. The pipe-water passage 2 is additionally provided in the upper part, which rises above the water reservoir level, with the axial pump 9 with a controllable pitch propeller. The hydraulic turbine 6 is mounted in the lower part of the pipe-water passage. The pipe-water passage 2 is fixed at the bottom of the water reservoir and has the openings 4 for entry of water. The energy complex consists of several hydroelectric power stations united by the common platform and having the necessary capacity adjustable by turning on and off the pumps.

EFFECT: group of inventions enables to produce electrical energy in different climatic conditions, with the possibility of increasing the unit capacity by increasing the length of the waterfront of the hydroelectric power station.

8 cl, 5 dwg

FIELD: power industry.

SUBSTANCE: transferred medium, air inlet is made in the form of knee pipe, vertical part of which is rigidly attached in ice and faces air, while horizontal part with a diffuser is located under ice along water flow. Air intake with ventilator and generator plant inside is tightly attached to the loose end of vertical part of knee pipe.

EFFECT: simple hydro-electric plant applicable for electric power generation from hydraulic energy of river flow under ice.

2 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: submersible microhydro power plant for electric energy generation includes hydraulic turbine with vertical rotation axis connected to electric generator, also it includes water flow formers and device protecting against floating objects. Lower end of runner shaft 3 is connected directly to generator shaft 17 by means of splined joint. Thrust bearing of runner is rigidly fixed in upper cover of electric generator housing 15 so that it is simultaneously a pilot bearing for electric generator. Electric generator is end-type, water-filled and is located under hydraulic turbine. Hydraulic turbine housing 1 and electric generator housing 15 form single structure monoblock.

EFFECT: reducing dimensions and weight, generating cheaper electric energy due to absence of investments to plants building, simplifying structure and erection works method, reducing maintenance costs.

2 dwg

Power plant // 2502891

FIELD: power engineering.

SUBSTANCE: power plant comprises one or several energy units, comprising a body with a diffuser, a wind wheel or an impeller with blades, a power generator, a gear from a wind wheel to a power generator, including two pairs of conical gears, the first and second shafts. Each energy unit comprises a master conical gear fixed on the outlet end of the first shaft, two slave conical gears, each connected with its overrunning clutch, slave links of which are fixed on the second shaft connected via a multiplier and an elastic coupling with a power generator. The multiplier may be made in the form of a planetary row, the carrier of which is connected with the second shaft, a solar gear is connected to the power generator via an elastic coupling. The plant may be equipped with a manual and automatic controller of power generator rotation speed, the mechanical part of which is made in the form of a planetary row, the solar gear of which is connected to the output shaft of the multiplier, an epicycle is connected with the worm gear wheel, the worm of which is connected to an actuating motor, and the carrier of the planetary row via a row of kinematic links is connected to a conical geared wheel that sits as movable on the shaft of the impeller and is engaged with gears that sit on axes and connected with blades.

EFFECT: plant is reliable to overloads under storm weather conditions.

22 cl, 5 dwg

FIELD: power engineering.

SUBSTANCE: turbine plant comprises a blading 11, which includes curved blades, an inner end of each one is closed in a cavity 14, open at one side; and a generator 20, arranged in the cavity 14 and connected with the blading 11. Each curved blade has a dynamic structure and is made as capable of increase in size under action of hydrostatic pressure and with the capability of compression under action of counterpressure.

EFFECT: simplified design and efficient operation.

2 cl, 7 dwg

FIELD: power engineering.

SUBSTANCE: method is designed for generating electric energy using natural energy enclosed in high pressure formation. Proposed method includes placing of turbine in well to which high-pressure agent is delivered, and electric generator with cable. Turbine is installed in encased well between showing high-pressure formation and intake low-pressure formation. Turbine is connected by pipes with electric energy generator. Flow of agent from high-pressure formation into low-pressure formation and to surface is provided. Regulation of agent flow into annulus and tube space is provided by distributing valve arranged in lower part of assembly of turbogenerator and hole between housing of turbine and pipe connecting tube space with annulus.

EFFECT: provision of effective generation of electric energy using energy contained in high-pressure formations.

2 cl, 1 dwg

FIELD: power engineering.

SUBSTANCE: proposed complex sea power station is designed for producing energy using renewable sources. Station consists of deep water intake unit, energy complex, hydrogen sulfide removal bath, electrolysis bath, photolyzer, hydrogen receiver and fuel chemical element station. Moreover, it includes thermocoupled battery placed in bath for hydrogen sulfide removal to obtain primary electric energy owing to difference in temperatures of deep water and water heated in bath; power unit including diesel generators operating on hydrogen formed in photolyzer and electrolysis bath, galvanoelectric station using sea water as electrolyte and gas holder for accumulating received hydrogen and keeping it in reservoir arranged in underwater part; output electric energy and monitoring unit and unit to control operation of all systems of complex sea power station, signaling and communication for self-contained operation, and unit to stabilized complex sea power station in right sea.

EFFECT: provision of supply of consumers and reliable operation in rough sea.

2 dwg

Propeller // 2321939

FIELD: conversion of wind or water flow kinetic energy into electricity.

SUBSTANCE: proposed propeller that can be used as component part of small power installations, toys, entertainment means, educational rigs for schools and collages has shaft-mounted bushing with vanes and is provided with electrical energy generation facility in the form of sealed hollow housing with end and side walls accommodating fixed inductive ring and movable permanent-magnet component. Electrical energy generating facility can be disposed on bushing at vane opposing end, between opposite vanes, between bushing and vane, or within vane.

EFFECT: enlarged functional capabilities.

5 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: hydraulic unit of borehole hydraulic power plant includes hydraulic turbine that is connected to electric generator, which are installed in borehole, electric cable that connects electric generator on the surface with electric converter. Hydraulic turbine is turbodrill, electric generator is electric drill, which are unitised and connected by means of common casing with slots. To bottom part of casing fixing unit is connected, which includes bottom-hole thrust block, fixing unit levers and thrust levers, the sliding elements of which are installed with the possibility of movement along bottom-hole thrust block cone, thus affecting fixing element levers, causing their divergence to borehole walls. Hydraulic unit is equipped with unloading device, for instance, jack that is connected with top end of boring column.

EFFECT: operable device for power generation by borehole hydraulic power plant and avoidance of expenses for development of borehole hydraulic unit.

2 dwg

FIELD: construction.

SUBSTANCE: invention relates to construction of hydro electric power stations in areas with intensive water flow. Hydro electric station contains open distribution device, synchronous horizontal capsular hydro - turbinal generators placed into the intensive water flow, platform - foundation, vertical guiding - stands, pulling - and - running mechanism and process platform. Synchronous generators are joined , at least, into two vertical areal favus - capsular systems and are hung - up in pairs and moving over and/or under the water surface by means of pulling - and - running - mechanism towards the guiding stands. Lower ends of the guiding stands are fixed on the platform - foundation arranged on the bottom of the intensive water flow. Areal favus - capsular systems of synchronous generators are set moving in the guiding stands connected with the bottom by anchor - cable braces. Open distribution device is set on the guiding stands above the water surface. Such a construction of hydro electric power station decreases labor intensity of its building - up, of its maintenance and repair, and ensures continuous and steady regimen of its operation.

EFFECT: decreased labor intensity of construction, maintenance and repair works, providing continuous and steady operation of hydro electric power station.

1 dwg

FIELD: machine building.

SUBSTANCE: invention relates to power engineering and can be used to control water level in downstream pools of operating hydro system. The proposed method consists in that the flow friction is created in the downstream pool by mounting several free-jet hydro turbine units at the riverbed with the help of piles to allow their removal and replacement in operation. The invention comprises the aforesaid free-jet hydro turbine unit to be used in the said method.

EFFECT: higher profitability, lower operating costs, higher output of electric power.

3 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: invention relates to power engineering and is designed to transform the power of river streams and tides into AC or DC electric power. The damless hydroelectric power station comprises a confuser-diffuser cylindrical-entrance water duct whereat a quick-acting gate and turbine are located. The said gate is arranged in the turbine and represents a double-acting facility operating depending upon the water flow direction in the aforesaid water duct. The said cylindrical entrance communicates via bypass branch pipes with check valves fitted therein with two buffering capacities communicating via a bypass pipeline. The pipeline houses the turbine connected to the electric generator. Each buffering capacity communicates with the aforesaid cylindrical entrance with the help of two bypass branch pipes, one being located ahead of the gate while the other one operates behind it along the stream in water duct.

EFFECT: all-season acting damless hydroelectric power station.

1 dwg

FIELD: electricity.

SUBSTANCE: offshore drilling platform includes supports for fastening to the ground and platform foundation. Diesel-generator is installed on the platform foundation. The diesel-generator supplies power to drilling equipment and personnel quarters. There is a control unit between power consumers and generator. No less than one additional generator with the drive operating on the natural power sources is connected to the control unit. At least one additional generator may be designed to have aerodynamic drive exploiting wind power and installed on the upper part of the support. At least, one additional generator may be designed to have hydrodynamic drive operating from wave power and installed on the support under water. Aerodynamic drive or hydrodynamic drive may be implemented as two co-axial airscrews connected with the additional generator through the facility of two shafts rotation movement transformation to the rotation movement of one shaft, e.g. differential orbital increase gear.

EFFECT: electrical power supply to consumer.

14 cl, 6 dwg

FIELD: electrical power engineering.

SUBSTANCE: invention relates to power generation and can be used in constructing low pressure river, tidal or wind power installations. A three-phase electric generator is put between orthogonal turbines. The orthogonal turbines have a common fixed axis. The electric generator is provided with at least one two-way action inductor. The inductor or inductors are immovably attached on arms in a circular direction using frames mounted on the axis. The magnetic core and windings of each inductor are put on a separate arm. The latter is semi-pivotally connected to the frame with possibility of axial displacement about the orthogonal turbines. Adjacent phase windings of each inductor of the electric generator intersect crosswise, creating electromagnetic fields, propagating in opposite directions at different sides of the inductor and the latter face different turbines. Electric power cables from the inductors are brought out on elements of the fixed frame through the hollow fixed axis of the power generating unit.

EFFECT: invention increases reliability of operation of power installations with orthogonal turbines by simplifying design of the power generating unit, as well as more efficient use of the energy of water or air medium.

4 cl, 5 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to structures of installations for energy conversion of water course of airflow into electrical power. Hydropower installation contains generator 1 and hydrodynamic drive 4, implemented in the form of two sequentially installed screws 7 and 8, implemented with rotation ability into side opposite and connected to generator 1 through conversion facility of rotational movement of two shafts into rotational movement of one shaft, implemented in the form of conic step-up gear 13, installed in inner body 6. Inner body 6 is affixed to external body 5 by means of two wicket gates 23 and 24, provided for spinning of water flow before its supplying to the back screw 8.

EFFECT: invention is directed to increasing of coefficient of efficiency of installation ensured by increasing of back screw coefficient of efficiency.

3 dwg

Up!