Construction method of midget hydroelectric power plants

FIELD: power industry.

SUBSTANCE: construction method of midget hydroelectric power plants involves erection of hydraulic units converting the river flow energy to electric one. Hydraulic units are erected in the form of solid units representing hydraulic rams in which there created are pressure oscillations induced with hydraulic impacts, and linear electric generators the movable magnetic cores of which are connected by means of rigid stocks to valve pistons of hydraulic rams for conversion of water pressure oscillations in them to oscillations of magnetic cores of electric generators. Hydraulic units, namely hydraulic rams, are placed according to river water level, thus creating artificial threshold-water drain providing additional water pressure before hydraulic units.

EFFECT: reducing capital investments at construction of electric power station without causing ecological damage.

4 cl

 

The invention relates to hydropower, and in particular to methods of use of water resources in lowland rivers to generate electricity.

There is a method of use of water resources in lowland rivers, including the construction on rivers cascade dam water, which is characterized by the fact that in order to reduce environmental violations in the river basin by reducing the space of the abandoned areas of river flow limit in the plan by building on the banks on both sides of the river longitudinal dams adjacent the downstream ends of the dams side saddle their faces, and parallel to the dam on the other side of the river perform the channel, the mouth of which match with the river between the downstream faces of the dam and the upper ends of the longitudinal dams, and the mouth of the river tributaries connect with channels, and adjacent to the channels squares produce the cultivation of land, see A.S. USSR 1645359, E02B 9/00.

This method requires large capital investments and long construction period, as provides for the construction of a cascade of dams.

There is a method of construction of hydropower plants in lowland rivers, including accommodation on the banks along the river together hydroelectric power stations, interconnected by conduits and valves, which is characterized by the fact that h is about to reduce environmental damage hydroelectric perform dam and supply pools downstream, located on the shore, with turbines of hydropower installed below the bottom of the river at the location of the hydroelectric power plants at a depth of 8 m, and the water pipes are laid along the bottom of the river and perform the siphon (see RF patent 2002888, E02B 9/00).

By the greatest number of similar features and achieved when using the result of this technical solution chosen for the prototype of the present invention.

The disadvantages of the prototype, which does not allow us to achieve our goals, is the complexity of the structural embodiment gidroagregata unit due to the need to use massive turbines to convert mechanical energy of the flow of water into electricity, the need for burial turbines at an average speed of 8 m below the river bottom, and the need to use long siphon pipeline laying them on the bottom of the reservoir and coastal basins downstream, which makes this method of capital-intensive and costly.

The present invention is the purpose and task of creating a simple and a capital-intensive method of construction for the generation of hydroelectric power with minimal environmental damage to areas adjacent to the river areas.

According to the invention the above aim is achieved due to the fact that the method of construction of small HYDR the power plants, including the construction of the units, which convert the energy flow of the river in electrical, characterized by the fact that the units are being constructed in the form of a single solid block, representing hydrotherapy, in which the pressure fluctuations caused by pressure surges, and line generators, movable magnetic cores are connected by rigid rods with pistons-valves hydrocarbon to convert pressure fluctuations of water in them in the fluctuations of magnetic cores generators, placed units, in particular hydrotherapy, the water level in the river, thereby creating an artificial threshold-Weir, providing additional water pressure before generating units.

In addition, the claimed technical solution has optional features that characterize its special cases, namely:

the units operate as separate cylindrical modules, choose the number of modules depending on the power flow of the river, have units, in particular hydrotherapy, below the water level in the cross river parallel to each other and its flow;

- generating units, in particular hydrotherapy, placed on the water level in the river below the freezing depth of water surface to ensure year-round operation of the units;

line e is generatory modular hydroelectric power plants at full submersion under the water level in the river waterproof perform.

In the proposed technical solution is achieved the ability to generate electricity without overlapping the rivers by dams, without penetration of the units under the bottom of the river and without the construction of long siphon piping, bypass channels and coastal basins downstream.

The method of converting mechanical energy of the flow of water from kinetic to potential and Vice versa in the devices, which are called hydrocarbone known (see "Hydraulics". ECI, Dowstream, Vmelilo, Lavacolla. M: Energy, 1973, s-217).

Also known linear electric generator that converts the mechanical energy of the reciprocating oscillatory motion of the magnetic core in an electric the same frequency (see the Patents of the Russian Federation No. 2209324, No. 2304341, H02K 35/02).

The method of construction of small hydropower plants implemented as follows. Hydroelectric power plants are being constructed in the form of a single solid block, representing hydrotherapy, in which the pressure fluctuations caused by pressure surges, and line generators, movable magnetic cores are connected by rigid rods with pistons-valves hydrocarbon to convert pressure fluctuations of water in them in the fluctuations of magnetic cores generators, put the units in castnet hydrotherapy, the water level in the river, thereby creating an artificial threshold-Weir, providing additional water pressure before generating units. The units operate as separate cylindrical modules, choose the number of modules depending on the power flow of the river, have units, in particular hydrotherapy, below the water level in the cross river parallel to each other and its over. Units, in particular hydrotherapy, placed on the water level in the river below the freezing depth of water surface to ensure year-round operation of generating units. Linear generators modular hydroelectric power plants at full submersion under the water level in the river waterproof perform.

The use of the claimed technical solution compared with all known means of similar purpose enables the generation of hydropower in lowland rivers without special construction of the cascade of dams, bypass channels, coastal basins downstream, burial generating units under the bottom of the reservoir and facilities long siphon pipelines with minimal environmental damage to areas adjacent to rivers areas.

1. The method of construction of small hydropower plants, including the construction of the units, which convert the energy of the flow, R is CI in electric, characterized in that the units are being constructed in the form of a single solid block, representing hydrotherapy, in which the pressure fluctuations caused by pressure surges, and line generators, movable magnetic cores are connected by rigid rods with pistons-valves hydrocarbon to convert pressure fluctuations of water in them in the fluctuations of magnetic cores generators, placed units, in particular hydrotherapy, the water level in the river, thereby creating an artificial threshold-Weir, providing additional water pressure before generating units.

2. The method according to claim 1, characterized in that the units operate as separate cylindrical modules, choose the number of modules depending on the power flow of the river, have units, in particular hydrotherapy, in cross river parallel to each other and over.

3. The method according to claim 1, characterized in that the generating units, in particular hydrotherapy, placed on the water level in the river below the freezing depth of water surface to ensure year-round operation of generating units.

4. The method according to claim 1, characterized in that the linear generators of the modular hydroelectric power plants with full immersion in the river waterproof perform.



 

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FIELD: construction.

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FIELD: construction.

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3 cl

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FIELD: construction.

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FIELD: construction.

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FIELD: power engineering.

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FIELD: hydraulic structures, particularly fish passes in water-intake structures.

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14 cl, 9 dwg

FIELD: hydraulic engineering.

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8 dwg

FIELD: hydraulic engineering.

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FIELD: hydraulic engineering.

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3 cl, 12 dwg

FIELD: hydraulic engineering; fish protective facilities.

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7 cl, 7 dwg

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to devices protecting young fish and preventing their getting into diversion facility. Proposed fish protective facility includes filtering water-separating dam made in form of vertical water-separating wall arranged along water intake channel and separating inlet part of channel from water conduit, device for preliminary drawing off young fish made in form of vertical rod installed for rotation by drive arranged before water-separating wall from its end face part pointed opposite to water flow. Rod is displaced relative to water-separating wall towards water intake channel. Device for preliminary drawing off young fish is furnished with additional means to increase fish draw-off effect, said means being made in from of flat round disks rigidly secured in height of rod coaxially with rod. Disks are installed parallel to each other forming slot water intake channels. End face part of water-separating wall adjoining the rod is provided with slots located opposite to planes of arrangement of disks. Disks are installed for free passing relative to slots. Invention provides higher efficiency of drawing off young fish out limits of zone of influence of diversion facility owing to provision of disks considerably increasing area of contact with surrounding medium and creating powerful circulation flow providing diversion of young fish and trash entrained by water behind outer surface of dam.

EFFECT: provision of effective conditions for drawing off young fish out of limits of zone of influence of diversion facility.

15 cl, 16 dwg

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to fish protective facilities used in diversion facilities. Proposed fish protective facility includes vertical gauze shield installed in inlet part of water intake channel at angle to its longitudinal axis, fish outlet arranged in place of mating of shield with side of channel, and device for creating whirlpool current for washing the shield containing jet guide member and made in form of chambers adjoining outer surface of shield and forming water intake holes over entire depth of water intake channel. Chambers are made cylindrical being formed by surface of shield and jet guide member and are placed in communication through water intake holes formed by edges of shield of adjacent chambers and edges of jet guide members at place of their butt joining. Each chamber is provided with independent fish outlet made in form of vertical perforated pipe arranged coaxially to chamber and communicating by independent fish duct with fish outlet. Inlet part of water intake channel is made with tangential inlet, edge of left side of channel, shield and tangential inlet are arranged in one plane.

EFFECT: improved efficiency of washing of gauze shield and drawing off young fish and trash.

24 cl, 18 dwg

FIELD: hydraulic and hydropower engineering, particularly for building water-retaining structures to provide power supply to small settlements and farms.

SUBSTANCE: method involves assembling flexible apron assembly consisted of flexible floor apron and flexible downstream apron in watercourse; securing thereof to watercourse bottom by anchors. Water outlet assembly including hydroelectric generator arranged inside it is secured to floor apron and downstream apron by rigid ties. Connected to water outlet assembly by ties are water retaining shell and rope system secured to anchor poles located on watercourse bank.

EFFECT: reduced time of structure assembling and costs for electric power generation.

2 dwg

FIELD: hydraulic structures, particularly fish-passing devices included in water intake structures.

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EFFECT: provision of controllable water intake during change in vertical young fish descent dynamics.

27 cl, 21 dwg

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to device designed to prevent young fish from getting into diversion facilities. Proposed fish protective device includes suction branch pipe lowered under water level, water permeable shield, device to bring young fish off made in from of hydraulic wash-away device with slot arranged coaxially with suction branch pipe out of the limits of suction hole, feed pipeline connected with pressure line of pump and made inside suction branch pipe coaxially with the latter, and ring conical partition made coaxially to suction branch pipe and rigidly secured on outer surface of suction branch pipe. Hydraulic wash-away device is formed by two cup-like deflectors with concave side pointed to suction hole and installed one over the other to form ring slot directed along water permeable shield. Lower deflector is provided with central outlet hole whose diameter is smaller than diameter of jet forming nozzle arranged coaxially to hydraulic wash-away device and rigidly connected with end part of feed pipeline. Ring conical partition is installed with its larger base to side of suction branch pipe, its smaller base being arranged in plane of suction hole.

EFFECT: simplified design of fish [protective device, provision of effective bringing young fish of limits of influence of suction branch pipe.

7 cl, 8 dwg

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