Method to build autonomous submerged tidal power plant with single-sided locks

FIELD: construction.

SUBSTANCE: invention relates to alternative sources of power, in particular, to tidal power plants. The method consists in the fact that a part of basin water area closed by a dam at the side of the sea, with a river flowing into it, exit of which into the sea is via hinged or pontoon gates only during ebb, together with the river bed from its mouth and to the dam is cut with the dam designed to create upper reach at the side of the river bed. The difference is discharged into lower reach via water conduits adjusted in the dam, to which submerged power units are connected. On the way of the river bed displaced by the dam to one of basin coasts, they install hinged or pontoon gates providing for only single-sided passage of a tidal wave into the water area of upper reach, providing for level difference necessary for turbines operation regardless of change in tide phases.

EFFECT: increased efficiency of power plant operation with lower costs and less time.

3 cl, 2 dwg

 

The invention relates to the field of alternative energy sources, in particular tidal power plants /PES/. It can be used with all relevant conditions of the estuaries of the Northern rivers and the Eastern rivers of the Russian Federation.

Known first tidal power plant built at the mouth of the river Rance (France), its power generated by 24 units, is 240 thousand kW, and units are as in the phase of the tide and low tide in the direction of the pool-sea in backwater channels with a distance of 21 km, PES produces 537 kW/h, and in the direction of the sea-pool is 71.5 kWh, the Main drawback of PES on R. Rance, as all PES, is to stop it when changing tidal waves, other drawbacks of overlap river dam the construction of gateways, the high cost of capsular hydropower units that are installed in the dam.

The technical result of the invention lies in the fact that, under comparable conditions to achieve similar results with less time and money. This technical result is achieved by the fact that the estuary, harbour (the pool), closed from the sea by a dam or dike, all the gates of which at low tide only work on emptying the pool, a smaller part of the area of the basin along the river from its mouth and the dam is cut off by a dam, the pre is assigned to the education side of the upstream river, and reset differential in the lower reach of waters of the basin is adjustable through the conduits intended for connection of floating units. On the path of the river channel, displaced by the dam to one of the banks of the pool, set in the dam folding or pontoon gates, intended only for the free passage of a tidal wave. Total meeting flows when the shutter is open and held in place with a river flow of pressurized when the breechblock is closed to form a stable upstream water, ensuring continuous operation of turbine units, regardless of the flow direction of the river channel. Abarognosis a sufficient number of folding and pontoon gates in the water at low tide will provide the necessary differential that is necessary for stable operation of the power units in the pauses between high tide and low tide Autonomous floating tidal power plant. The functioning of the turbine units is achieved by the fact that at low tide the level difference between the upper and lower bays supported trapped at sea unilateral constipation river, when the phase change of tide, tidal wave, superior river head, opens the gate or constipation, make sure that the backwater of the river or turn it over backwards, which will further increase the efficiency of turbines PES.

Given the fact that the river will mix to one of the banks BA is Seyne, where possible shallow spherical unit with axial turbine may be ineffective, appropriate floating power unit /SEL/ in the form of a parallelepiped-shaped rectangular conduit with orthogonal turbine (from) inside; its fundamental similarity with SEL analog, docked to one of the conduits for experienced kislogubskoy PES (see n-m. "Small energy" №4, 2008, page 7), but from the specified analog of this assumption may differ by the fact that due to unilateral skip comes with its conduit, and thus the block can be cut exactly in half, given that this proposal is the removal of the generator outside the SEL, the SEL height may be reduced to three times and if the dimensions are similar 33×10×15 m, the length of the proposed block - 16.5 m, width - 10 meters height - 5 meters the diameter of the turbine wheel similar to 5 m, the length of the blades 4 m, if this proposal diameter to increase by one meter, the power at shorter so the blades will remain unchanged, which means that SEL can be below one meter. Given the fact that the manuscripts of this proposal compared to similar designed to work in relatively "soft" conditions, its turbine so constructively can be facilitated through positive Zn the values, provided that the shaft FROM the drives, racks and blades will be made of a hollow profile with the use of high-strength composite materials, in an appropriate combination of innovative technology you can use and light wood. When installing FROM the vertical axis in the Lite version there is no need to install a 63-ton bottoms, and hence to the support bearings, replace liners commonly used in low-speed mechanisms.

At the same time as the chassis for lightweight SEL can be used the appropriate size of the body of the lighter barges. When the level differences between the upper and lower pools may require the backwater of the dam from downstream, in the form of two short piles, one of which as a brace for the main pile for the second stop of padmasini (not shown). Delivery of concrete structures remains the same vertical ceratopogonidae panel connected by a duct to the tightness of use stroygermetik, buoyancy boxes sufficient to deliver two long piles, U-shaped in cross-section, the fundamental panel is also connected with the frame and to attach the two shorter piles. The approximate demand in the building details for one km of the Dam: the length of the P-panel, equal to 10 m, you will need 100 long the different piles and as much shortened, when backwater of the dam through one long pile - additional 100 vertical K-P panels with a width of 10 m and the same P-panels under the Foundation, these materials are delivered caravan way consisting of 50 sets. To prevent undermining of the dam from the river side under rib P-panel, for the formation of an impervious Byrd will podstilaet rolled material with subsequent powder (see ibid Small. EN-ka, page 33).

Literature

1. P. Zebra energy tide and tidal power. M.: MIR, 1964.

2. Marine encyclopedic Handbook in two volumes, L., 1987.

3. Small energy, periodic scientific and technical journal, No. 4, 2008.

1. The method of Autonomous floating tidal power plant with one-sided constipation, including an indoor dam sea side pool with influent river, out to sea which is installed through the dam folding or pontoon gates only at low tide, part the waters of the basin along the river from its mouth and the dam is cut off by a dam, meant to create side of the river channel of the upstream and reset differential in the lower reach is adjustable through the dam the water, to which is attached the floating units, while on the path of the river channel, displaced by the dam to one of the banks swimming pool is a, install hinged or pontoon gates, providing only one-way passage to the waters of the upstream tidal waves, providing for continuous operation of turbines differential levels regardless of the changing phases of the tide.

2. The method according to p. 1, characterized in that the power units are in floating units, delivered to the place of operation floating way, while vocabulaty camera, allows them to dip and rise for inspection, repair or replacement.

3. The method according to p. 1, characterized in that the construction in the closed dam or breakwater from sea waves pools Autonomous floating tidal power plants use light low-pressure dam of reinforced concrete delivered to the site of erection of dams floating way.



 

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