Hydraulic power unit with discharge water conduit and side water intake

FIELD: construction.

SUBSTANCE: hydraulic power unit comprises a water intake, a discharge water conduit, a turbine and a drive of its generators. The hydraulic power unit water intake is made in the form of an artificial reservoir, which is built near a river. A water intake part of the discharge water conduit is connected to the artificial reservoir, and its upper edge is arranged at the level of or below the deepest natural point of the river bottom in a site of the artificial reservoir. The artificial reservoir is connected to the river by a canal or a water conduit, the bottom of which is made in the same manner at the level of or below the deepest natural point of the river bottom.

EFFECT: invention excludes impact of hydraulic power units and their construction at ecology of rivers and streams, where they are built.

2 dwg

 

The invention relates to engineering and can be used in the construction of small hydropower plants in any location.

Known for small hydro power plants (patent No. 2162914/13 C2, application No. 98117019/13 00 from 08.09.98, whose basic construction is the diversion channel, made in the form of a pressure conduit. At the end of the conduit is set active turbine. For hydroelectric small power installation of active turbines, instead of reactive, is preferred as the active turbines, compared to reactive, have a higher hydraulic efficiency and solves the problem of water hammer in the pipes of the conduit.

Active turbine patent No. 2162914 made in the form of a wheel, the rim of which is fixed, with the possibility of rotation around the axis of its mounting buckets. Each bucket consists of two connected together, the divergent angle of the bent gutters.

In addition to choosing the type of turbines for hydro power plants, a significant problem for them, regardless of what type turbines are applied, is the problem of preservation of the river. Installation, for example, R. Enisey Krasnoyarsk hydroelectric power station completely out of direct water communication between, Krasnoyarsk and such cities as Abakan and Minusinsk. Smaller rivers are often used for rafting on tourists. Dams on rivers violate not only laid tourist routes, but also natural Ekol the Gia river, on which they are built. With the construction of hydroelectric dams completely violated the natural migration routes of fish, causing reduced its number in the rivers. None of hydroelectric dams in the world does not solve the problem of migration of fish through the dam body!

Closest to the technical essence of the present invention is a "Small hydro turbine with active - proposal 2005140717/06, 26.12.2005, patent No. 2305793, publ. 10.09.2007, bull. No. 25, the author Gel.

According to this invention, "Small hydro turbine with active", which includes the dam water intake, cone intake, penstock, the impulse turbine, the generator current to the actuator, characterized in that the cone intake performed by the cone only in the horizontal plane, the entrance of the bottom outlet and the entrance cone intake are situated in one plane and above them on the crest of the dam water intake installed a warm room, a wall which is facing the reservoir, is located in front of the dam and its lower edge recessed on the amount of freezing water reservoir, and the active turbine is made in the form of a disk rigidly mounted on the turbine shaft, both sides of which on its periphery fixed buckets, made in the form of snails, twisting incident jet of water from nozzle pressure conduit so that waste water jet fell past the main article the AP, each nozzle pressure conduit is made in the form of a cone associated with the valve pressure conduit via an intermediate conduit, and as the brake system to stabilize the speed of the turbine wheel and, consequently, the frequency of the current, changing in the process station, the parameters of pressure and loads on the generator from customers current applied additional DC generator, which shaft is rigidly connected with the shaft of the main generator and the field winding through a diode bridge to feed current from the main, three-phase circuit of the main generator, in addition, in the control circuit of the excitation winding of the main generator is applied to the rheostat designed to change the current in the excitation winding driven centrifugal plunger, such as a system vehicle, which shaft is also connected with the shaft of the main generator.

The objective of the invention is to eliminate the effect of hydropower plants and their construction on the ecology of rivers and streams on which they are built.

The problem is solved with the help of a hydroelectric power station with a pressure conduit and a side intake, including intake, penstock, turbine and drive generators, characterized in that the intake hydro power made in the form of an artificial reservoir, which is being built next to the river, connected to vodozabornaya part of the pressure conduit, the upper edge of which is located at or below the deepest natural point of the bottom of the river at the site of the artificial reservoir, the latter being connected to the river channel or conduit, the bottom of which is made at the level or below the deepest natural point of the bottom of the river.

Figure 1 shows a General view of a hydroelectric power station with a pressure conduit and a side intake" (view in plan).

Figure 2 shows a section of the intake hydro artificial channel and artificial reservoir neck pressure conduit.

The system with a pressure conduit and a side intake includes artificial reservoir - 1, built on one of the banks of a stream or river, cone intake - 2 gate - 3, penstock - 4, the valve - 5, an intermediate conduit 6, the nozzle 7 and the impulse turbine - 8. Turbine 8 is mounted in the casing 9 and is closed by the cover. A jet of water from the pressure conduit - 4, is fed through the valve 5 on the turbine blades - 8, through the nozzle 7. Turbine 8, the coupling 10, is connected with the shaft of the gear - 11, at the ends of the high-speed shaft which on the one hand, through the coupling is attached to the shaft of the main generator 12, which generates alternating current, on the other hand - pulley transmission, which connects the gear of the main generator with a device for stabilization of the current, made, for example, in the center of the experience of the pusher, - 13.

Artificial tank 1 is constructed in the form of pools or wells, in one of the walls of built-in neck pressure conduit, made in the form of a flat cone - 2, whose upper edge (point) is located at or below the deepest point of the bottom of a stream or river that is built HPPs. Cone intake is closed by the shutter - 3 lifts - 14. In the vessel wall, facing the river, made a hole, or aperture, is also closed by a shutter - 15. This opening is connected with the river channel or conduit - 16, with a bias towards the side of the water intake and the bottom of the channel or conduit is also at or below the deepest point of the bottom of the river.

In the vessel wall, which is built cone conduit - 2, built in the mouth of the drain conduit - 17 with its shutter - 18. The mouth of the drain conduit or hole 17 is located at or below the neckline pressure conduit - 4. All artificial reservoir - 1 may be closed by the building 19. The wall of the tank 1, in which the integrated cone intake - 2, can be made in one with the elements of the coast - 20.

Running the system with a pressure conduit and a side intake as follows.

On the banks of a stream or river, according to measurements of the water flow of the river, calculation and project based side in Sabor - 1. Side intake - 1, HPP small capacity, can be entirely manufactured in a factory environment. Its construction, as well as the gasket pressure conduit is not associated with the river and its ecology, and has been one of its banks. The side intake - 1 is connected to the cone of the pressure conduit 2, the mouth of the drain conduit 17 and mounted all the gates and their hoists and, if necessary, building of water intake - 19.

After completion of construction and installation of all equipment HPP, including turbine - 8, the drive of the generator - 12, all elements of the supply valves all holes in the side of the intake - 1 are closed. Closes an aperture or hole that connects the intake to the river, enclosed by the gate line 15. Then construct the channel or conduit - 16, connecting the river or stream with a side intake. The bottom of the channel 16 has a bias towards the side of the intake - 1. After completion of the connecting channel closures - 15 and 3 are opened, the discharge conduit is completely filled with water. The station is ready for operation.

To start working station opens valve - 5, turbine - 8, rotating from water pressure, rotates the shaft of the gearbox, at the ends of the high-speed shaft whose one side is fixed to the shaft of the main generator 12, the other pulley transmission that connects the gearbox to the device for stabilization of the AI parameters of current - 13. The station produces the current.

As practice has shown the operation of such a withdrawal on R. Hirosawa (Republic of ALTAI), HPP side intake did not affect the ecology of the environment and life of the river, which built this HPP. This fact is especially significant, when you consider that the aforementioned hydroelectric power station built on the territory of the reserve.

The system with a pressure conduit and a side intake, including intake, penstock, turbine and drive generators, characterized in that the intake hydro power made in the form of an artificial reservoir, which is being built next to the river, and is connected to the intake portion of the pressure conduit, the upper edge of which is located at or below the deepest natural point of the bottom of the river at the site of the artificial reservoir, the latter being connected to the river channel or conduit, the bottom of which is made at the level or below the deepest natural point of the bottom of the river.



 

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