Wave power plant

 

(57) Abstract:

Use: hydropower, is designed for converting sea wave energy into electrical energy. The essence of the invention: body wave energy plants are located above the level of the waves and can move along the guide rails, and the latter is vertically fixed on piles driven into the seabed, while between the piles and the housing is placed absorbers, such as rubber gaskets, and the lower, open portion of the housing is connected closed sides and bottom, corrugated sheath, made for example from rubber or synthetic fabric, under the influence of gravitational forces, the membrane is stretched in the form of fur harmonica and his head touches the surface of the pond. 1 Il.

The invention relates to hydropower and is designed for converting sea wave energy into electrical energy.

Known wave power installation comprising an open bottom casing in the form of floating on the waves, turned upside down tank with an air valve and an air turbine connected to a generator. Lifting or opada, wave acts as a piston in the cylinder, vsni or displacement of the air flow passes through an air turbine and does not change its direction.

The main disadvantages of the known devices include low efficiency, low reliability and high cost.

To prove these shortcomings imagine the installation of fixed anchors on long chains, in the form of a sea buoy. Long chain allow the installation is relatively freely ascend and descend together with the wave, and also move some distance in the horizontal plane. In this fixing device, the energy of sea waves, will be used as follows: part of the wave energy will be useless wasted a shot into the wall of the hull, partially submerged in water, as well as secondary waves reflected from the wall. A significant portion of the wave energy will be directed to the displacement of the water body and its movement in the horizontal plane. And only a small remaining part of the wave energy will be used on the absorption or expulsion of air from the cavities of the body directly through an air turbine.

Based on the above we can conclude that the well-known power plant has a low efficiency.

To increase the reliability of marine structures is x, housing facilities perform a streamlined shape in the form of the ship and reduce their total windage. For example, offshore drilling rigs placed on piles driven into the seabed with defined intervals. This setup has low windage, as almost freely pass water between the piles.

When placed in the sea known installation, do the opposite: to position it selects the most violent part of the open sea, and the installation deploy to meet the oncoming waves stern and thereby further increase its windage. However, the fact that such placement installation makes it unreliable in operation.

Open the stormy sea on the front wall of the housing will fall massive shock waves. To withstand these impacts, the case must be strong and durable body, it will require substantial amount of construction materials that will significantly increase the cost of installation.

The objective of the invention is to increase the efficiency, reliability and reducing the cost of installation.

The solution is achieved in that the housing is located above the level of the waves and can travel through napravlyaushaya dampers, for example, in the form of rubber strips, and the lower open side of the casing, connected, closed sides and bottom, corrugated sheath, made for example from rubber or synthetic fabric, under the influence of gravitational forces, the membrane is stretched in the form of fur harmonica and his head touches the surface of a pond.

New in the invention is the placement of the housing above the level of the waves, the possibility of moving the housing along the guides as well as guides, bumpers and crimped casing, connected to the open side of the casing. And the presence in the devices of the new elements and the totality of their interactions, allows you to make a preliminary conclusion that the proposed inventive device meets the criterion of "Novelty."

The drawing shows schematically the proposed installation.

The housing 1 is placed above the level of wave 2 with the possibility of vertical movement along the guide rails 3. Rails 3, vertically attached to the 4 piles driven into the seabed 5, with certain intervals. Between piles 4 and the housing 1, the dampers 6, made in the form of rubber gaskets. To the lower open part of the housing 1, is connected closed with deep fur harmonica and his head touches the surface of the waves 2. In the walls of the housing 1 is made holes with an air valve, inlet 8 and the exhaust 9.

In the opening of one of the walls of the housing 1 posted by air turbine 10 is connected to a generator, which for convenience, not shown, also not shown, and means for preventing horizontal drift of the shirred casing 7. The latter can be accomplished, for example, in the form of a telescopic sliding pipe, one end of the fixed on the inner surface of the bottom of the shell 7, and the second tube is fixed in the body of the vertical walls of the housing 1.

The device operates as follows.

Under the influence of the growing wave 2 begins to emerge and at the same time to shrink, previously stretched corrugated casing 7. When this sheath 7 compresses the prisoner in his cavity air and thereby creates a pressure drop between the air cavities of the shirred casing 7 of the housing 1 and the outer atmosphere. Due to the created pressure drop, close the air inlet valve 8 and open the exhaust air valves 9. The compressed air begins to enter the atmosphere through an air turbine 10 and exhaust air valves 9. Air turbine 10 rotates points wave 2 begins to fall, and the corrugated casing 7 begins to stretch under its own weight and re-create the differential pressure of air. This opens up the supply air valves 8 are closed and the air valve 9. Atmospheric air rushes into the cavity of the shell 7 and the housing 1 through an air turbine 10, and the stream of air passing through an air turbine 10, does not change its direction. Further, the above cycles will be repeated.

In a stormy sea does not exclude the possibility of higher waves, which are not typical for this area. Such a wave can be formed through the merger of two regular waves or under the action of earthquakes. Usually such, even a single wave that can destroy many marine structures.

With the increasing high waves 2 corrugated casing 7 is compressed to the limit, completely displaces the air from its cavity in the atmosphere and in the cavity of the housing 1. With further increase in wave 2 of the housing 1, together with the shell 7 will pop up along the guide rails 3.

After reaching a certain height, wave 2 will begin to subside and the body 1 is smoothly descend and without destructive consequences will take its initial is s, arising between the housing 1 and the guide 3, and the damper 6, placed on stilts 4.

Technical and economic efficiency of the proposed installation.

In the installation of wave energy will not be useless to rastrakutas on the displacement of the water body and its movement in the horizontal plane. And floating on the waves of the corrugated sheath in its mass, lighter body, have a wide flat bottom and like any light flat-bottomed floating craft, has a slight draft and will not create significant value of the reflected waves. With most of the wave energy is directed to the compression of the shirred casing and, as a consequence, the displacement of the cavity air through an air turbine.

The building, located just above the level of the waves, less subject to corrosion and is not subjected to shock even the most high waves and therefore will be more reliable in operation. If the body does not experience the above-mentioned hydrodynamic loads, and its strength can be significantly lower. In making the latter will require less building materials, facilitated installation technology, and therefore the cost of the entire installation will be mn of the power installation working, technically feasible, has high efficiency, high reliability and low cost.

The wave power installation comprising an open bottom housing with an air turbine connected to a generator, characterized in that the housing is mounted for movement along the guide rails, the latter is vertically fixed on piles driven into the seabed, while between the piles and the casing is placed a damper in the form of rubber pads, and between the housing and the surface of the sea placed closed sides and bottom of the corrugated sheath, made for example from rubber or synthetic fabric, is attached to the open side of the casing.

 

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