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INVENTION
Patent of the Russian Federation RU2046992
HYDRO-ELECTRICAL INSTALLATION
The name of the inventor: Shkurikhin Igor Borisovich
The name of the patent holder: Shkurikhin Igor Borisovich
Address for correspondence:
Date of commencement of the patent: 1994.06.10
Use: to generate electricity by using the kinetic energy of rivers and streams. SUMMARY OF THE INVENTION: the plant further comprises a pump 9, wherein the turbine blades 4 are made in the form of hollow bodies of revolution, the walls of which are provided with tangential slots communicating with the pump 9.
DESCRIPTION OF THE INVENTION
The invention relates to hydropower and can be used to generate electricity by using the kinetic energy of rivers and watercourses.
The closest to the invention is a hydroelectric plant comprising a rotary hydro turbine with blades and a shaft kinematically connected to the generator.
The disadvantages of such an installation are low power and complexity of operation of the installation.
The purpose of the invention is to increase the power and simplify the operation of the plant.
The goal is achieved by the fact that the plant further comprises a pump, wherein the turbine blades are made as hollow bodies of revolution whose walls are provided with tangential slots communicating with the pump, and also in that the apparatus is provided with a device for regulating the supply of water into the tangential slots.
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In Fig. 1 shows a hydroelectric installation; FIG. 2 shows a section AA in FIG. 1. FIG.
The hydroelectric plant comprises a hydroturbine with a rotor 1, a shaft 2 of a rotor 1, a casing 3, blades 4 made in the form of hollow bodies of revolution whose walls are provided with tangential slots 5, a generator 6, a multiplier 7 connected to the shaft 2 of the rotor 1 by a clutch 8, a pump 9 Connected via a conduit 10 to an annular chamber 11 formed in the casing 3 and bounded on the inside by the outer surface of the shaft 2, a device 12 for regulating the supply of water to the tangential slots 5, a central channel 13 formed at the end of the shaft 2 and communicating with the annular chamber 11 through Windows 14, and through radial channels 15 in the rotor 1 with cavities 16 in the blades 4, seals 19 placed between the end walls 17 and 18 of the annular chamber 11 and the outer surface of the shaft 2, spores 20 of the casing 3 mounted on the pontoon 21, Surface of the river.
HYDRO-ELECTRICAL INSTALLATION WORKS AS FOLLOWING
The water from the pump 9 through the pipeline 10, the annular chamber 11, the windows 14 and the channels 13 and 15 enters the cavities 16 of the hollow blades 4 and through the tangential slots 5 made in their side walls is ejected along the outer surface of the blades.
As a result of the action of the so-called Coanda effect, high-speed jets move along the surface of the blades, forming a continuous vortex ring, the interaction of which with the external flow creates the lift of the blade, the magnitude of which depends on the velocity of the jets. The mechanism of creating the lift is analogous in this case to the creation of a lifting force around the rotating cylinder. However, in this case, the profile quality C y / C x (the ratio of the lift coefficient to the coefficient of resistance) is much higher and reaches 20 at a value of C y 6.
In the interaction of the external flow with the system of annular blades, a flow vortex is formed (FIG. 2), since the magnitude of the torque blades produced by the system depends on the velocity of the jet ejected, maintaining the set speed of the generator is achieved by throttling the liquid flow behind the pump 9 of the regulating device 12. This allows Simplify the control system and use the same installation for different speeds of the oncoming flow, which simplifies its operation. As a result of the fact that the direction of circulation around the blades is maintained irrespective of their position, and the magnitude of the lifting force acting on them is an order of magnitude greater than the lifting force acting on conventional wing profiles, the total capacity of the installation is substantially increased.
CLAIM
1. A hydro-electric installation comprising a hydroturbine with a rotor, blades and a shaft kinematically connected to a generator, characterized in that the apparatus further comprises a pump, wherein the turbine blades are made as hollow bodies of revolution whose walls are provided with tangential slots communicating with the pump.
2. The plant of claim 1, characterized in that it is provided with a device for regulating the supply of water to the tangential slots.
print version
Date of publication 24.03.2007gg
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