RU2679411C2 - Damless hydroelectric power plant with pelton hydroturbines - Google Patents

Abstract

FIELD: power engineering.SUBSTANCE: invention relates to hydraulic power engineering and specifically to damless power plants. Damless hydroelectricis power plant consists of branch 1 in the form of round, rectangular or square one, two or more spectacle tubes, a fence with a grid, water receiver 2 in the form of a truncated cone or prism connected to supply pipe 3, successively installed concentrators 4, 5 in the form of a truncated cone or prism or pipe concentrator, gate 6, turbine pipe 7, nozzles 8, Pelton hydroturbines 9, housings 10, generators 11.EFFECT: invention is aimed at ensuring power production.1 cl, 2 dwg

Description

The invention relates to the field of hydropower and specifically to damless power plants.

The following hydroelectric power plants are known: near-dam, deforestation hydroaccumulative and tidal. These hydropower plants require the creation of dams and reservoirs. Reservoirs at large hydropower plants flood large areas of forest and agricultural land and adversely affect the environment.

From the prior art, a damless hydroelectric power station is known, containing a truncated cone-shaped water receiver, a turbine pipeline, nozzles, and bucket hydraulic turbines (see RU 2588165 C1, 06.26.2016, E02B9 / 00). This damless hydroelectric power station can be installed only on small rivers and only on those on which there is no spawning of especially valuable fish species, since there is no branch, and the river from coast to coast is blocked by an earthen bridge or water intake.

The proposed technical solution for a damless hydroelectric power station eliminates these disadvantages and consists in the fact that a damless hydroelectric power station containing a water intake, a turbine pipeline, nozzles, and bucket hydraulic turbines, according to the invention, consists of a branch in the form of a round, rectangular, or square one, two or more spectacle tubes fencing with a mesh, a truncated cone or prism-shaped water intake connected to the supply pipe, series-mounted concentric truncated cone or prism concentrators, or pipes of a gate concentrator, a turbine pipeline, nozzles, bucket hydraulic turbines, casings, generators.

In addition, the tap can be performed with a stream splitter.

In the first embodiment, concentrators are installed in series from the water inlet to the gate.

 In the second embodiment, instead of sequentially installed concentrators in the inlet pipe from the water intake to the gate, a round, rectangular or square shaped concentrator pipe with a closed or open top is installed with a gradual decrease in the cross-sectional area along the length from the size of the outlet cross-section to the size of the gate inlet.

To reduce losses from soft friction, the internal height of the outlet, water intake, inlet pipe and concentrator should be higher than the maximum water level in them during the period of maximum flood. At very low air temperatures in winter, the outer surface of a closed turbine pipe may be covered by thermal insulation.

To prevent floating debris from entering the turbine pipeline with water, a fence with a mesh is installed in front of the inlet of the outlet, preventing not only debris, but also the passage to the fish outlet.

The figure 1 shows the first version of the damless hydroelectric power station.

In figure 2 is the second option.

The damless hydroelectric power station (Fig. 1) consists of an outlet 1 of a round, rectangular or square shape with one or two or more spectacle tubes with a flow divider, a fence with a net, a water intake 2 in the form of a truncated cone or prism connected to the inlet pipe 3, sequentially installed concentrators 4, 5 in the form of a truncated cone or prism. The number of hubs may be more. The damless hydroelectric station also includes a shutter 6, a turbine pipeline 7, nozzles 8, bucket hydraulic turbines 9, casings 10, generators 11.

In the damless hydroelectric power station (Fig. 2), instead of the series-installed concentrators in the supply pipe from the water intake 2 to the shutter 6, a pipe 12 is installed. At the pipe end, in front of the shutter 14, a concentrator 13 can be installed, if necessary. Damless hydroelectric power station also includes a shutter 14, a turbine pipeline 15, nozzles 16, bucket hydraulic turbines 17, casings 18, generators 19.

The supply pipeline is laid in the riverbed in the BPHPP turbine hall with the rise of its connection with the valve at a mark above the maximum rise in water during the flood period.

Water after passing through a bucket hydraulic turbine flows into the riverbed. After a certain distance, the flow rate of the water flow in the river is restored and it is possible to establish a similar next BPGES, i.e. create a cascade of BPPPs.

The economic effect is achieved due to a significant reduction in the cost of kW of installed capacity, kW of generated electricity, reduction of construction time and payback time.

Claims (2)

1. Damless hydroelectric power station, containing a water intake, a turbine pipeline, nozzles, bucket hydraulic turbines, characterized in that it consists of a branch in the form of a round, rectangular or square one, two or more point pipes, a fence with a net, a water receiver in the form of a truncated cone or prisms connected to the supply pipe, series-installed concentrators in the form of a truncated cone or a prism or pipe of a shutter concentrator, a turbine pipe, nozzles, bucket hydraulic turbines, casings, generators. 2. Hydroelectric power station according to claim 1, characterized in that the outlet is made with a flow splitter.

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