Run-of-river plant power plant of russian engineer sergej timofeevich zheleznyakov

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

 

The invention relates to hydropower, in particular to hydro power plants providing electricity by using the energy of natural water flow of the river.

Known hydropower plant (see the description of the invention to author's certificate of the USSR No. 889787, IPC E 02 In 9/00, publication 25.12.81 G.), using the energy of river flow. The generator and turbine, with a bias toward the bed, are on the coast. The bottom edge of the turbine is lowered into the coastal water flow. The disadvantages of this HPP are: the inability to provide a stable level of electricity because of the variable level of river flow (of water) in the wet season and dry season. It uses, including, and superficial layers of the stream flow, which in winter freezes, and consequently to rotate the turbine. Finally, during the spring flood and ice flow turbine and the station itself will be filled in spring flood water and carried walking on the river ice.

The closest, in fact, the present invention is an underwater hydroelectric power plant (see description of the patent of the Russian Federation. No. 2139972, IPC E 02 In 9/00, publication 20.10.99 G.), fully immersed in the river flow, having a housing in the form of a round in the pipe cross-section, which is placed inside the turbine plane of rotation of the blades which perpen�of ekulama the flow axis. The turbine shaft is directly connected to the shaft of an electric generator, located in a sealed compartment of the container. On the input confuser installed protective net. Turbine housing chamber has a longitudinal output window and the reflector of the internal water flow, made in the form of a truncated cone and is hermetically connected with a cylindrical sidewall, which is installed inside the horizontal turbine shaft bearings. After passing the turbine, the flow through the side slit gets into the external flow.

Significant disadvantages of the plant are: immersion electric generator in a river in versed, that is, having bolted hermetic connectors, container. In nature there is no releasable sealed container, which would at long operation (in long-term immersion in water) wouldn't have missed inside the water, the more that it comes out a rotating shaft connected to the turbine in a turbulent water flow and thus transmitting this shaft vibration of water vortices. Poorly organized flow inside the pipe will not allow you to remove the maximum energy flow, the more that the turbine diameter in this case would be small because of the small depth of the natural flow of a river, and the small size of the generator. Because the b�lshe generator, the larger the desired airtight container and the harder it is to ensure sealing at all. Numerous examples to support this assertion, can serve a variety of sea and river vessels having propeller shafts extending from the hull into the water. Their sealing is not able to hold water in continuous operation, therefore, all courts have the so-called cromova water, which is removed from the hold with a pump.

It is known device engineering "Subsonic wind tunnel" - and with a return channel. (Cm. copyright certificate № 326474, IPC G 01 M 9/00.)

It is used for testing and obtaining the aerodynamic characteristics of aircraft models and parts at subsonic speeds.

The pipe consists of a settling chamber having a guide vane and ending of the convergent channel, turning into a cylindrical, which is the working part of the chamber, where the test model. Then comes the diffuser channel, which is a fan driven by an electric motor, then reverse the channel.

The device operates as follows. The fan is driven in rotation by an electric motor creates a vacuum that causes air to move through the guide bars of the settling chamber which makes the flow more laminar (non-rotational), converging channel in which the air is accelerated, that is, increases its velocity, and reaches the part where it interacts with the test model. With the model removed the necessary parameters. Then the air flow enters the diffuser, which reduces its speed, and through the return channel moves back to the grid of the settling chamber. Thus, expending energy, we create we need the airflow in a specially organized space of the pipe.

Use the same principle of operation of a ramjet without a return channel subsonic wind tunnel, but on the contrary. What is installed in the river flow is similar to in-line subsonic wind tunnel without a return channel in-line subsonic hydrodynamic pipe, which we use as a hydraulic drive for generator.

Use existing energy flow to generate electricity. The pipe is attached to the flow properties we need, and we use its energy to drive a turbine, which is located in this case in the working section of the pipe where the flow velocity is maximum. The turbine rotates the generator outside of the pipe, which generates an electric current.

The problem to be solved by the present invention, is the creation of run-of-river hydropower plant, which� eat helps to ensure the maximum possible kinetic energy of the water naturally current in the river, to convert it into electricity, without exposing the generator to the danger of being flooded, and also to provide the modular design of the plant to obtain its set energy performance over a wide range.

The invention consists in that run of river hydroelectric power plant, containing mounted in river flow water tank with inlet converging intakes, equipped with a strainer installed in the housing of the turbine unit incorporating fitted to the shaft of the vane of a turbine generator connected to the turbine drop off, is that the hydroelectric plant is set on the Foundation and contains several rigid, impervious to water, having an elliptical cross section of the shell to the turbine modules, arranged with the possibility of transmitting rotation from the shaft, enclosed in a ring of turbines through the overrunning clutch shaft, passing through shore wells with circulating Donna river water, via a gear to a shaft of a rotor of an electric generator mounted on the shore, with each turbine modules the plane of rotation of the turbine blades is inclined at an angle to the longitudinal axis of the thread in the hub area of the turbine, which is attached to the blades, located on the front of the turbine napravlyaushaya installed with the edge of the upstream conical body, and on the back on the hub of the turbine installed hemispherical body, and before the turbine module and installed a shutoff device to shut off the flow inside the housing, wherein the converging intakes, features an inclined strainer, lateral artificial river rapids, and each housing is provided with the output of the diffuser nozzle with protective netting.

In addition, the Foundation is set several buildings input converging intakes, equipped with a mesh filter, in parallel next to each other, across the river.

In addition, the Foundation is set several buildings input converging intakes, equipped with a strainer, longitudinally along the river one after another.

In addition, the Foundation is set several buildings input converging intakes, equipped with a mesh filter having an additional lateral converging intakes, a shoulder, that is, longitudinally along the river one after another with a lateral offset.

In addition, the angle of inclination of the plane of rotation of the turbine blades to the longitudinal axis of the water flow is in the range from 0 to 180 degrees.

In addition, the conical guide body is a broken line.

In addition, the conical guide body is curved�.

In addition, the turbine ring has a conical shape, and the turbine blades sloped back.

In addition, the front edge of the turbine blade is made ridged, prevents slipping of seaweed caught on the blade in the hub area.

In addition, the turbine blades are made using a geometric twist.

In addition, the turbine blades are made using hydrodynamic twist.

In addition, the turbine blade has a slit that allows the stream to flow from the lower surface of the blade profile at the top, thus increasing the lifting force of the blade, which creates a torque of the turbine.

In addition, the side of the artificial river rapids of the convergent inlet designed as a dull concrete walls.

In addition, the side of the artificial river rapids of the convergent inlet is made in the form of plates as full-swivel, hinged, attached to the bottom of the river with the help of props and stretch marks.

In addition, the side of the artificial river rapids of the convergent inlet is made in the form of soft cloth attached to the bottom of the river with the help of props and stretch and filled the pressure of the flowing water.

In addition, through the side of an artificial threshold of the convergent inlet passes a channel for the passage of vessels of large draught, which is located�hree each other two side artificial rapid, the upper edge of which is raised and lowered by a mechanism.

In addition, lateral artificial threshold of the convergent inlet has openings for flow of water.

In addition, shore wells can be both vertical and inclined.

In addition, the circulation of bottom water in coastal wells is provided to force the Archimedes screw, mounted on a common shaft running along the bottom of the river at its entrance into shore wells.

In addition, an inclined screen filter is pushed in the river flow out of the river hydroelectric and rotated by the same angle in the range from 0 to 180 degrees, allowing the stream to wash away the accumulated dirt on it and algae.

In addition, the blades of the vane directs the water flow to the turbine blades at an angle of attack providing the maximum hydrodynamic quality of the blade.

This allows you to create raslouw hydroelectric power plant, which allows for the removal of the maximum possible kinetic energy of the water naturally flowing in the river, to convert it into electricity, without exposing the generator to the danger of being flooded, and also to provide the modular design of the plant to obtain its set energy performance over a wide range.

The invention is illustrated by drawings. Fig 1 shows a General view of the river hydroelectric, consisting of one turbine module (side view).

Fig. 2 shows-in layouts hydroelectric river bed, consisting of several buildings and several turbine modules, as well as possible deployment channel for the passage of vessels and artificial rapids (top view).

Fig. 3 shows an artificial rapid, executed in a dull concrete wall.

Fig. 4 shows an artificial rapid, executed in the form of a fence of plates attached to the base by means of hinges, supports and extensions.

Fig. 5 shows an artificial rapid, executed in the form of a fence of hinged plates attached to the base by means of hinges, supports and extensions.

Fig. 6 shows an artificial rapid, executed in the form of a fence made of soft fabric, filled with the pressure of flowing water, attached to the Foundation with the help of props and stretch marks.

Fig. 7 shows a turbine blade having a slit, allowing the stream to flow from the lower surface of the blade profile at the top, thus increasing the lifting force of the blade, which creates a torque of the turbine.

Fig. 8 shows a turbine blade having a forward edge, made ridged, prevents slipping of seaweed caught on the blade in the hub area.

Fig. 9 shows lopas�ü turbine, having a back bevel when using a turbine ring having a conical shape.

Positions indicated on drawings:

1 - river flow,

2 - the case of hydroelectric power,

3 - the river

4 - converging intakes,

5 is an inclined screen filter,

6 - the case of turbine module

7 - closing device,

8 - turbine module,

9 - diffuser nozzle,

10 - protective mesh.

11 - guide vane,

12 - turbine,

13 - turbine shaft,

14 - overrunning clutch,

15 - common shaft,

16 - gear,

17 - generator,

18 - the hub of the turbine,

19 - hemispherical body,

20 - artificial threshold,

21 - shore wells,

22 is a ship with a large draught,

23 - channel for the passage of vessels

24 is an artificial threshold mechanism with elevation changes,

25 - conical body,

26 - the Foundation

27 - turbine ring,

28 is a blank concrete wall,

29 - plate

30 - stretching,

31 - backup,

32 - soft cloth (rubber coated fabric, tarpaulin).

Run of river hydroelectric power station (2), containing mounted in the river flow (1) water tank with inlet converging intakes (4), equipped with a strainer (5), mounted in the housing of the turbine module (8) comprising mounted on the shaft (13) turbine vane (12), alternator (17), connected to the shaft of the turbine (13), �polnaya so, what is hydroelectric (2) is mounted on the base (26) and comprises a plurality of rigid, impervious to water, having an elliptical cross-section of the housings (6) with turbine modules (8), arranged with the possibility of transmitting rotation from shaft (13) embedded in the ring (27), a turbine (12) via an overrunning clutch (14) of the shaft (15) passing through shore wells (21) with circulating Donna river water, via a gear (16) to the shaft of the rotor of the generator (17), set on the shore (3), wherein each of the turbine modules (8) the plane of rotation of the turbine blades (12) is inclined at an angle to the longitudinal flow axis (1), in the hub area (18) of the turbine (12) to which are mounted the blades, located on the front of the turbine (12) of the guide bars (11) are installed with the edge of the upstream cone-shaped body (25), and on the back on the hub of the turbine (18) is mounted hemispherical body (19), and before the turbine module (8) and installed locking device (7) with the possibility of overlap of the flow inside the housing (6), wherein the converging inlet (4), features an inclined strainer (5) has lateral artificial river rapids (20), and each housing (2) is supplied with the output of the diffuser nozzle (9) with protective grid (10).

Fig. 2 shows how on the foundations of (26) is set several buildings hydroelectric power plants (2 in parallel next to each other, across the river (1) attached to the same common shaft (15) connected to one electric generator (17).

In addition, on the basis of (26) is set several buildings hydroelectric power plants (2) input converging intakes (4), equipped with a strainer (5), longitudinally along the river one after another.

In addition, on the basis of (26) is set several buildings hydroelectric power plants (2) input converging intakes (4), equipped with a strainer (5) with additional side converging intakes, a shoulder, that is, longitudinally along the river one after another with a lateral offset.

In addition, the angle of inclination of the plane of rotation of the turbine blades (12) to the longitudinal axis of the water flow is in the range from 0 to 180 degrees.

In addition, the conical guide body (25) is a broken line.

In addition, the conical guide body (25) is curved.

Turbine ring (27) has a conical shape, and the blades of the turbine (12) is cut back, as shown in Fig. 9.

The front edge of the turbine blade (12) is made with ledges that prevent the drift of seaweed caught on the blade in the hub area (18), as shown in Fig. 8.

In addition, the turbine blades (12) is performed using a geometric twist.

Moreover, the blades of the turbine was�s (12) is made using hydrodynamic twist.

Fig. 7 shows that the turbine blade (12) has a slit that allows the stream to flow from the lower surface of the blade profile at the top, thus increasing the lifting force of the blade, which creates a torque of the turbine (12).

Fig. 3 shows a side artificial river rapids (20) of the convergent inlet (4) is designed as a dull concrete wall (28).

Fig. 4 and 5 show how the side of the artificial river rapids (20) of the convergent inlet (4) is provided in the form of plates (29) as a full-swivel, hinged, attached to the bottom of the river with the help of props (31) and stretch (30).

Fig. 6 shows how the side of the artificial river rapids (20) of the convergent inlet (4) is made in the form of soft cloth (32) attached to the bottom of the river using props (31) and stretch (30) and filled the pressure of the flowing water.

Fig. 2 shows how using artificial lateral margin (20) of the convergent inlet (4) is a channel (23) for the passage of vessels of large draught, in which are located one behind the other two side artificial rapid (24) with a mechanism for changing the height so they work in the mode of shutters airlock.

In addition, artificial lateral margin (20) of the convergent inlet (4) has openings for flow of water.

In addition, shore wells (21) can be� vertical and sloping.

In addition, the circulation of bottom water in coastal wells (21) is enforced by the Archimedes screw, mounted on a common shaft (15) running along the bottom of the river at its entrance into shore wells (21).

In addition, an inclined screen filter (5) is pushed in the river flow (1) outside of the river hydroelectric (2) and is rotated by an angle in the range from 0 to 180 degrees, allowing the flow of (1) to wash away the accumulated dirt on it and algae.

In addition, the blades of the guide vane (11) direct the water flow (1) on the turbine blade (12) at an angle of attack providing the maximum hydrodynamic quality of the blade.

Run of river hydroelectric power plant operates as follows.

The river flow (1) through the inlet converging inlet (4), provided with an inclined strainer (5) to protect against ingress of foreign objects and algae, comes in the hydroelectric power station (2), mounted on base (26). Converging intakes (4) subsonic flow of the river (1) accelerates, further increasing their speed. Then the flow enters the cylindrical section of the housing (6) hydroelectric (2), which forms a cylindrical, elliptical in cross section of a flow channel (1) water. It accommodates a shut-off device (7), which, if necessary, stop the flow (1) inside the body () hydroelectric (2) for installation and dismantling of its nodes, which is in permanent river flow (1).

Next, the flow of cylindrical, elliptical in cross section of the annular duct enters in the cross section of the channel formed by the installation in the hub area (18) of the turbine (12) on the grid guide vanes (11) of a conical body (25), aiming the tip towards the stream (1), which overcomes the flow from the center channel to its periphery. Considering that the area of the cross section of the annular channel is less than the cylindrical channel, this leads to even greater preload flow (1) and increase its speed.

Further, the thread (1), changing its direction of movement on the blades of the guide vane (11), at an angle of attack providing the maximum hydrodynamic quality, enters the blades of the turbine (12).

If the turbine ring (27) has a conical shape, and the blades of the turbine (12) beveled backward, the cross-sectional area of the annular channel inside the turbine ring (27) is reduced and this leads to even greater preload flow (1) and increase its speed.

Thus, a maximum torque of the turbine (12) with minimal internal flow resistance of hydroelectric power (2), i.e. with minimal loss of flow rate (1).

Thus, the torque causes the turbine (12) in rotation�e, which through the turbine shaft (13), passing through the module (14) is passed to a common shaft (15), and from him through a reduction gear (16) to the generator (17), located on the shore (3), which produces electric current.

Next, the flow of annular, elliptical in cross section of the channel falls into elliptical in cross section of the channel formed by the mounting on the back side of the hub (18) of the turbine (12) of a hemispherical body (19), forming the walls of the pipes of circular, elliptical in cross section of the diffuser channel, turning into a cylindrical elliptical in cross section channel. This ensures a smooth deceleration of the flow (1) and the reduction of turbulence, which allows the use of stream (1) on the second and subsequent similar turbine modules (8). Further downstream of the hydropower station (2) stream (1) enters the diffuser (9), in which it is braked to a speed of the flow (1) of the river, and then returns to the riverbed.

Thus, the torque on single shaft (15) can be increased through the use of multiple turbine modules (8) hydroelectric (2) arranged longitudinally along the river one after another. Or turbine modules (8) with additional side converging intakes, may be placed in hydroelectric power (2) ledge, i.e. longitudinally with the flow re�and each other with a lateral offset. Depending on local river conditions hydroelectric power (2) attached to a common shaft (15) may be placed across the current (1) river next to each other. (Cm. Fig. 2.) All this allows to increase the torque on single shaft (15) and, accordingly, to obtain a given power plant, implementing the modular principle.

This takes into account the fact that the internal hydraulic resistance of hydroelectric power (2) will be very significant, and it can "lock" the hydroelectric power plant (2), that is, to stop the flow of (1) inside it, so the river flow (1) to flow around the hydroelectric power plant (2) sides. To avoid this situation on the river bottom on each side of the inlet of the convergent inlet (4) to the shore created an artificial river rapids (20), in the form of underwater dams, proportionally to the height of hydroelectric power (2). At such statement of a question the hydraulic resistance on the part of the cross section of the riverbed on either side of hydroelectric power (2) greater than its internal hydraulic resistance, which will cause the river flow (1) to move inside of hydroelectric power (2). (Full analogy with natural river sill.)

Common shaft (15), which via an overrunning clutch (14), allowing it to spin, even if it trips one of the turbines (12), is transmitted torques from turbine shafts (13), �robotic on the bottom of the river to the shore. Then through shore wells (21), drilled to the bottom of the river, common shaft (15) suitable to improve the reducer (16) of the generator (17), which is located on the shore (3). Here it is important that shore wells (21) was drilled to the level of the river bottom in the area of hydroelectric power (2) to organize the circulation of water from the bottom of the river in this well (21). This will prevent freezing of water in the well in the winter.

It is known that water has a maximum density at a temperature of+4 - +5 degrees Celsius and therefore descends, with this temperature. And more cold or more warm water, having a lower density, is displaced upward. Therefore, even in the winter with a significant negative temperatures, the water temperature at the bottom of the river does not fall below this level, which is why the river does not freeze to the bottom.

Given that the torque on the turbine (12) is greater, the greater its diameter, it is necessary to strive to increase the diameter of the turbine (12) to provide the maximum torque of the turbine (12) turbine module (8), and hence, ultimately, the power of the entire power plant. However, increasing the diameter of the turbine (12) leads to an increase in the diameter of hydroelectric power (2), which in turn increases the required depth of the river flow (1) and thereby prevents the use of the river for the relative�but shallow flows.

This contradiction is eliminated by tilting the plane of rotation of the turbine blades (12) at an angle to the flow axis. This allows the housing (6) hydroelectric (2) with an elliptical cross-section. And the greater the angle of inclination of the plane of rotation of the turbine blades (12) to the flow axis (1), the becomes more elongated the ellipse. Thus, when a large diameter turbine (12) height of plant (2) becomes much smaller and it becomes possible to use a shallow river flows. This is all the more important because the upper layers of the river flow (1) not suitable for use in this Rushes because they are used for shipping flat-bottomed vessels with a small draught, and in the winter they freeze. The river is covered with ice, and the upper part of the hydro (2) just freezes into ice and hydroelectric (2) will be demolished during spring break.

On rivers with an organized navigation for the passage of ships (22) with a large draught in the area of the river hydroelectric artificial threshold (20) is arranged in the channel (23) for the passage of these vessels, equipped with a system of two adjacent artificial thresholds (24) with a mechanism for changing its height. At the same time located one behind the other artificial thresholds (24) with the mechanism of change of the height of the work poocheredno mode lock chamber. At the approach of the ship to a special channel (23) the first artificial threshold (24) is omitted and, having missed the ship in a special channel (23), rises. After that, the second artificial threshold (24) is lowered and, having missed the ship from a special channel (23), is raised.

Run of river hydroelectric power plant in accordance with this invention compared with the prototype allows to ensure the removal of the maximum possible kinetic energy of the water naturally flowing in the river, to convert it into electricity, without exposing the generator to the danger of being flooded, and also to provide the modular design of the plant to obtain its set energy performance over a wide range.

1. Run of river hydroelectric power plant, containing mounted in river flow water tank with inlet converging intakes, equipped with a strainer installed in the housing of the turbine unit incorporating fitted to the shaft of the vane of a turbine generator connected to the shaft of the turbine, characterized in that the hydroelectric plant installed on the Foundation and contains several rigid, impervious to water, having an elliptical cross section of the shell to the turbine modules, arranged with the possibility of transmitting rotation from the shaft, enclosed in a ring, turbine passing through the mu�you common shaft, passing through shore wells with circulating Donna river water, via a gear to a shaft of a rotor of an electric generator mounted on the shore, with each turbine modules the plane of rotation of the turbine blades is inclined at an angle to the longitudinal axis of the thread in the hub area of the turbine to which the blades are attached, on the front of the turbine the guide bars are installed with the edge of the upstream cone-shaped body, and the back side on the hub of the turbine installed hemispherical body, and before the turbine module and installed a shutoff device to shut off the flow inside the housing, wherein the converging intakes, features an inclined strainer, lateral artificial river rapids, and each housing is provided with the output of the diffuser nozzle with protective netting.

2. Run of river hydroelectric power plant according to claim 1, characterized in that the turbine housings of the modules are located across the river near each other.

3. Run of river hydroelectric power plant according to claim 1, characterized in that the turbine housings of the modules are arranged longitudinally along the river one after another.

4. Run of river hydroelectric power plant according to claim 1, characterized in that the turbine housings of the modules having additional side intakes, are located the ledge, that is, longitudinally along the Techa�Oia river one after another with a lateral offset.

5. Run of river hydroelectric power plant according to claim 1, characterized in that the angle of inclination of the plane of rotation of the turbine blades to the axis of the water flow is in the range from 0 to 180 degrees.

6. Run of river hydroelectric power plant according to claim 1, characterized in that the conical guide body is a broken line.

7. Run of river hydroelectric power plant according to claim 1, characterized in that the conical guide body is curved.

8. Run of river hydroelectric power plant according to claim 1, characterized in that the turbine ring has a conical shape, and the turbine blades sloped back.

9. Run of river hydroelectric power plant according to claim 1, characterized in that the front edge of the turbine blade is made ridged, prevents slipping of seaweed caught on the blade in the hub area.

10. Run of river hydroelectric power plant according to claim 1, characterized in that the turbine blades are made using a geometric twist.

11. Run of river hydroelectric power plant according to claim 1, characterized in that the turbine blades are made using hydrodynamic twist.

12. Run of river hydroelectric power plant according to claim 1, characterized in that the turbine blade has a slit that allows the stream to flow from the lower surface of the blade profile at the top, thus increasing the lifting force of the blade, which creates a torque of the turbine.

13. Run hydroelec�rostance according to claim 1 wherein what side of the artificial river rapids entrance of the convergent inlet designed as a dull concrete walls.

14. Run of river hydroelectric power plant according to claim 1, characterized in that the side of the artificial river rapids entrance of the convergent inlet is made in the form of plates as full-swivel, hinged, attached to the bottom of the river with the help of props and stretch marks.

15. Run of river hydroelectric power plant according to claim 1, characterized in that the side of the artificial river rapids entrance of the convergent inlet is made in the form of soft cloth attached to the bottom of the river using props and stretch and filled the pressure of the flowing water.

16. Run of river hydroelectric power plant according to claim 1, characterized in that through the side of an artificial threshold of water it passes the channel for the passage of vessels of large draught, in which are located one behind the other two side artificial rapid, the upper edge of which is raised and lowered by a mechanism.

17. Run of river hydroelectric power plant according to claim 1, characterized in that the side of the artificial threshold of intakes has openings for flow of water.

18. Run of river hydroelectric power plant according to claim 1, characterized in that shore wells can be both vertical and inclined.

19. Run of river hydroelectric power plant according to claim 1, characterized in that in different�tion of ground water in coastal wells is provided to force the Archimedes screw, mounted on a common shaft running along the bottom of the river at its entrance into shore wells.

20. Run of river hydroelectric power plant according to claim 1, characterized in that the inclined filter is then deployed in the river flow out of the river hydroelectric and rotated by the same angle in the range from 0 to 180 degrees, allowing the stream to wash away the accumulated dirt on it and algae.

21. Run of river hydroelectric power plant according to claim 1, characterized in that the blades of the vane directs the water flow to the turbine blades at an angle of attack providing the maximum hydrodynamic quality of the blade.



 

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: 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: energy industry.

SUBSTANCE: hydro-electric power-plant comprises electric generators, bearings and a float. On the base of the device the confusers and diffusers are mounted one behind the other. Between the confusers and diffusers the blade grid is located with the ability of vertical motion relative to the confusers and diffusers. The frictionless bearings are mounted on the support above the water flow.

EFFECT: obtaining electrical power with high efficiency, reliability and constant rate of rotation of the electric generators.

2 dwg

FIELD: electricity.

SUBSTANCE: method to produce electric energy includes installation of two non-polarised electrodes in a zone of continuous water flow in a sea or river at a distance from each other and from the bottom. Current-collecting lines are connected to the electrodes to transfer a difference of values of natural electric field potentials between the electrodes to a coastal station of electric energy collection. At the station they sum up the difference of potentials from all such pairs of electrodes, convert into AC and send to consumers.

EFFECT: provision of the possibility to produce electric energy by simple means.

FIELD: power engineering.

SUBSTANCE: pumped storage plant on plain streams comprises riverbed hydraulic power units, including axial pumps, which are rotated by riverbed water wheels via multipliers. Riverbed hydraulic power units serve for filling of an upper accumulating pond made in the form of a water reservoir with dam walls along the perimeter. Upper and lower accumulating ponds are connected to each other by discharge pipelines with pumps-turbines in the lower part connected mechanically with electric motors - generators in a turbine room. The upper accumulating pond covers a river bed by half.

EFFECT: prevention of flooding of plains and land plots, free navigation and fish passage along entire length of a river, increased depth of a fairway and higher speed of water flow.

5 cl, 11 dwg

FIELD: power industry.

SUBSTANCE: beam (8) for attachment of fairing (2) of hydro-electric power plant (1) has a cross section in a plane perpendicular to longitudinal axis (A8) of beam (8) in the form of a parallelogram. Beam (8) includes at least one slot that mainly passes parallel to longitudinal axis (A8) of beam (8). In the cross section perpendicular to longitudinal axis (A8) of beam (8), traces of the surfaces located along the slot pass from one of the sides of large sizes of the cross section to the adjacent side of small sizes of the cross section. Hydro-electric power plant (1) includes wheel (3) that can be rotated about axis (X1), fixed fairing (2) enveloping the wheel, and at least one beam (8) for attachment of the fairing, which attaches the fairing to central support (6) of the hydro-electric power plant.

EFFECT: geometrical shape of an attachment beam allows restricting Karman vortexes and even preventing their formation at action on the beam of water flow during operation of a hydro-electric power plant.

10 cl, 7 dwg

Hydraulic unit // 2549753

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

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

FIELD: construction.

SUBSTANCE: invention may be used in applied hydroacoustics for provision of safety (industrial and environmental) of hydraulic engineering structures (HES) of high hazard facilities: nuclear power plants (NPPs), hydraulic power plants, heat power plants, tidal power plants, offshore oil and gas platforms, etc. In particular (with regard to NPPs) for: protection against penetration into a water supply channel (WSC) 2 of above-water (AWSC) 12 and underwater (UWSC) 13 subverter carriers, as well as underwater subverters (UWS) 11 themselves; protection of mature fish (MF) 14 and young fish (YF) 15 against ingress into the water supply channel (WSC) 2 and directly into a water intake window (WIW) 4; treatment of water from mechanical (MA) 17 and biological (BA) 18 admixtures and biogrowths (BG) 16; acoustic degassing of water. The method consists in physical retaining of AWSC, SWSC and UWS by formation of a combined air bubble curtain at the inlet to the water supply channel 2, sharp reduction of density of water medium and subsequent dropping of the AWSC 12, SWSC 13 or directly the UWS 11 itself to the bottom. Mechanical retention of AWSC 12 is carried out by means of installation of a power boom containment at the inlet and across the water supply channel 2 and subsequence damage of the AWSC 12 body. Multi-stage and combined acoustic displacement of UWS 11 is carried out, as well as multi-stage and combined non-lethal damage of UWS 11, and multi-stage and combined displacement of fish 14, including young fish 15. Combined treatment of water from mechanical admixtures 17, biological admixtures 18 and biogrowths 16 is carried out at the inlet to the water supply channel 2, as well as multi-stage and combined acoustic immobilisation and acoustic destruction of biogrowths 16. The method also includes acoustic degassing of water at the outlet from the water supply channel 2 - in the area of the water-intake window 4.

EFFECT: invention provides for required safety of NPP HES.

11 dwg

Up!