Method to construct no-pause tidal float power plant with single-side shutoff site

FIELD: electricity.

SUBSTANCE: estuary is protected against sea waters with a breakwater (dam) and gates that open to empty the estuary in case of ebb. A canal is laid along the river-sea line with installation of water conduits in its boards (walls) in the quantity equal to the design quantity of float power units. Upon completion of laying works at the side of the sea the water area is closed with gates locked at the pressure of the river flow during ebb and opened with another tide overcoming the river flow, which provides for passage of vessels, also tugboats with float power units to the place of their installation.

EFFECT: no-pause operation of float power units installed along both boards of a canal.

2 dwg

 

The invention relates to the field of alternative energy sources, in particular tidal power plants constructed at the mouths of rivers. It can be used in almost all estuaries of the Northern rivers of the European part of the Russian Federation, with the tidal range from 3-15 meters

Known first commercial tidal power plant (TPP), built at the mouth of the river Wound in 1967 (France). Her power produced by the capsule 24 units, is 240 thousand kW, while the units are in the phase of the tide and low tide, and in the direction of the pool-sea, backwater channel 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 rrans, as well as all tidal power plants are stopping (pause) when you change the direction of the tidal wave, and this disadvantage is aggravated by the fact that these pauses occur on the lunar calendar and in no way at odds with the earth production process, which means that when using PES will need external power source.

Other disadvantages of PES should be attributed to the high cost of capsule units and the dam, including shipping gateways, all it took 40 thousand cubic meters of concrete, from which it follows that the payback PES can last for decades, that little attractive to investire the soup party.

The technical result of the invention is that under comparable conditions it is possible to achieve the best results at a lower cost, in particular, to abandon the construction of the dam as an unnecessary element.

In the proposed version of the float-tidal power plant (hereinafter PPAS) one-way locking of the target ensures the continuity of work PPAS regardless of the state of a tidal wave. The proposed scheme does not preclude the use of capsule units as more productive turbines compared to traditional vertical at low gradients, however, the proposed vertical turbines in the float version has a number of significant advantages, in particular, their performance was not affected not only the change of flow, but also its full stop, which often happens when wind surges and ebbs in which the turbine PES cease to revolve already on fault element. For PPES such phenomena only benefit.

In the present invention, a method for construction becausei floating tidal power plant with one-way shut-off target, characterized in that through the estuary, protected from tidal waves breakwater (dam) and the gate opening on emptying the water area of the estuary at low tide, lay along the line of river-sea channel installation is coy in its sides (walls) water in a quantity equal project number float units; at the end of the cushioning works from the sea close gate, lockable under the pressure of the river flow during low tide and otkrivajuscie overcoming runoff next tide, which ensures the admission of ships, including tugs with float units to the place of their installation.

The channel is one-way shut-off target provides becausenow (non-stop) operation turbine units regardless of the phase state of the tide.

The use of units in the float version simplifies their installation and maintenance, and if necessary, their interchangeability, with surface sampling workflow does not harm marine life.

The advantages of PPAS should include float units, from the standpoint of ease of Assembly, is feasible in almost any convenient location, and then towed to the place of their installation, and approximate data of one block with its inclusion in the work will take about one hour.

This technical result is achieved by the fact that through the estuary (estuary), protected from tidal waves dam, and at low tide providing emptying the basin, port (harbour) from river runoff self-opening gates lay floating ways the Ohm, along the line of river-sea channel, with the installation of its sides (walls) water in a quantity equal to the number of the float units. Upon completion of the cushioning works of the canal from the sea close folding gate, lockable river runoff in the phase of the tide, the gate opening occurs under the pressure of the tidal wave, this time is the passage of vessels, including tugs with float units delivered to the site in special niches, where the landing will be self-centering, providing a combination of nodes reset the float units with socket ends of the conduits, and when filling the fresh water holds out today with a simultaneous launch in the working position of the turbines, and already at the first separately prescribed unit PPAS will begin to generate electricity.

In the figure 1 in plan showing the mouth of the river, the location of the port, closed from sea waves by a breakwater, for PPES this water area is still securely closed sealed gate that opens only under the pressure of the water during low tide. The estuary is divided into two unequal parts by the channel, the sides of which the height is designed to hold the maximum level of the tide. At low tide gates river runoff, the runoff from the closed target is distributed between ten units, stykovanie with conduits providing work relief in a closed water area of the estuary, the alignment of levels between the separated parts is carried out by the pipe (1), laid under the channel, the channel width is determined by its sudokhodnoye, for malogabartinykh courts width of the gate at a rate should be 100 m as shutter use specially adapted two barges, their divorce restrict the supporting poles, and when closing - anchor chain (2).

The figure 2 shows the unit in the section. By handwheel (3) open blinds of the fence, run the turbine in the work carried out by the handle (4), opening the hatch, through which sea water as ballast to fill the hold, the level of the unit will fall and through the louvers outboard water gets on the turbine blades and at the same time will break a flexible plug (5)held by the docking station (6) under its own weight falls in the mouth of the conduit. For reliable docking docking station make sliding or flexible-corrugated. Centering niche (7) and siphon tube (8).

The hull of a floating power unit is made from reinforced concrete in the matrix in a flexible (elastic) closed pavlopoulos, and bottom heavy hemisphere and the top light is made separately with their subsequent coupling into a ball or ellipsoid at the completion of works on installation of internal floors.

Literature

Zebra R. Energy prili the s and tidal power station / translated from the French. Moscow: Mir, 1964

Marine encyclopedic Handbook in two volumes, edited by N.N. Isanin. - Leningrad: Sudostroenie, 1987

1. The method of construction becausei floating tidal power plant with one-way shut-off target, characterized in that through the estuary, protected from tidal waves breakwater (dam) and the gate opening on emptying the water area of the estuary at low tide, lay along the line of river-sea channel with the installation of its sides (walls) water in a quantity equal to the design number of float units, at the completion of the cushioning works from the sea close gate, lockable under the pressure of the river flow during low tide and Windows that overcoming runoff next tide, which ensures the admission of ships, including tugs with float units to the place of installation.

2. The method according to claim 1, wherein the channel is one-way shut-off target is provided becausea (non-stop) operation turbine units regardless of the phase state of the tide.

3. The method according to claim 1, characterized in that the application of the units in the float version simplifies their installation and maintenance, and if necessary, their interchangeability, with surface sampling workflow does not harm marine life. /p>

 

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