Wave and tidal power plant

FIELD: power industry.

SUBSTANCE: invention refers to hydraulic power industry, particularly to wave and tidal power plants. Wave and tidal power plant includes buoyant tank 1 with at least one pulley 2 attached to it, at least one vertical underwater cylinder 3 connected by a flexible link 4 with anchor 5 set at the sea bottom, plunger 6 featuring at least one stem 8 and positioned inside the cylinder 3 with a possibility of reciprocal movement down under its own weight or spring or up along with buoyant tank 1 upheaval with a wave or tide, resulting in work medium suction and displacement from the cylinder 3 and transfer to an electric power generator or to the land. Cylinder 3 is buoyant and is located under water completely or partially, or is non-buoyant and is attached to levelled sea bottom. The cylinder 3 is connected to the plunger stem by flexible link 7 passing through the pulley 2 of buoyant tank 1, and thus the rising travel distance of the plunger 6 is approximately equal to two rising travel distances of the buoyant tank 1.

EFFECT: enhanced efficiency of the plant due to increased plunger travel amplitude.

8 cl, 3 dwg

 

Area of technology

The invention relates to hydropower, in particular to wave and tidal energy installations.

The level of technology

Known float wave electric power station, located in the vertically sealed cylindrical housing which is placed a power Converter, in the form of a linear generator. The armature winding is located along the hull. The inductor is made in the form of inertial mass with permanent magnets mounted for vertical reciprocating movement by means of elastic elements. The armature winding is mounted on the inner wall of the housing. The magnets are combined into annular sections and placed inside the armature winding. In the lower spherical portion of the hull is a dynamic inertial energy storage device with Electromechanical actuator double acting. The natural frequency of the inductor is comparable with the characteristic frequency of the oscillations in water [1] (document EN 2037642 C1, CL F03B 13/16, publication date 19.06.1995). The disadvantages of this setup is its low efficiency due to the small amplitude oscillations of the piston.

Known tidal power plant which comprises a vertical hollow cylinder, a reservoir for compressed air, a turbine, a piston connected to the float. The piston forms in�wipe cylinder air chamber overpressure. And to them are attached the buffer chamber with spring-loaded pistons. Chamber connected to the atmosphere through the inlet, through pipelines, provided with valves. The pistons are spring loaded by springs. Air blast overpressure connected with a reservoir of compressed air by means of conduits provided with valves. Each buffer chamber is equipped with a device for adjusting the tension of the spring. Cylinder tidal power plant is placed on the ground [2] (document EN 2099587 C1, CL F03B 13/18, F03B 13/26, publication date 20.12.1997). The disadvantages of this setup is its low efficiency due to the small amplitude oscillations of the piston.

Known power system based on float pump that holds the float with adjustable volume, made with the possibility of the return movement under the influence of waves, the piston is placed with a sliding piston inside the cylinder and attached to the float. The piston is formed with a return movement in the first direction and the second direction under the influence of movement of the float. The piston moves in a second direction for suction of the working fluid in the piston cylinder and is moved in the first direction for removing medium from the piston cylinder [3] (document EN 2353797 C2, CL F03B 1/18, publication date 27.04.2009). The disadvantages of this setup is its low efficiency due to the small amplitude oscillations of the piston.

Known the closest to the invention analogue (prototype) wave and tidal power installation comprising a floating pontoon, a pulley and located under water vertical cylinder with positive buoyancy, connected by a flexible connection with the anchor installed on the bottom, a piston disposed inside a cylinder with a reciprocating move down under the action of the spring and up under the influence of the displacement of the floating pontoon that provides suction to remove the working fluid from the cylinder and supply it to the power generator on shore, while the cylinder is connected to a floating pontoon with a flexible coupling, thrown over a pulley, secured to the piston rod [4] (document US 2009/0081055 A1, CL F04B 17/00, publication date 26.03.2009). The disadvantages of this setup is its low efficiency due to the small amplitude oscillations of the piston. The obstacles to achieve specified below, a technical effect which is placed a flexible connection in the installation in such a way that the distance of the upward movement of the piston is approximately one half the distance of the upward movement of the floating pontoon and even around one quarter R�of stoane the upward movement of the floating pontoon.

Summary of the invention

The problem to be solved by the invention is to improve the efficiency of wave and tidal energy installations. The technical result of the present invention is to increase the amplitude of oscillation of the piston.

The technical result is achieved in that wave and tidal energy installation comprising a floating pontoon mounted thereon at least one pulley, at least one vertical cylinder located under water and connected by a flexible connection with the anchor installed on the bottom of the piston, at least one rod disposed inside a cylinder with a reciprocating move down under its own weight or a spring and up under the influence of the displacement of the floating pontoon raised by wave or tide, that provides suction to remove the working fluid from the cylinder and supply it to the generator or the shore, according to the invention the vertical cylinder is formed with positive buoyancy, is under water either fully or partially implemented with negative buoyancy and installed with fixing aligned on the bottom, when the cylinder is connected to the piston rod with a flexible coupling, thrown over a pulley floating pontoon, whereby the distance of the upward movement in�tied approximately twice the distance of the upward movement of the floating pontoon.

The variant of the equipment of the power plant several underwater cylinders, a floating pontoon is equipped with several pulleys located on the perimeter of the floating pontoon and/or around the perimeter of the cutout or window floating pontoon, and/or in the middle part of the floating pontoon, made with vertical holes for passing them in flexible connections.

A possible variant of wave and tidal energy installation intended for placement in a closed water area in which the floating underwater pontoon and the cylinder is formed with a horizontal than vertical, in addition, the cylinder is made double-acting and contains the working chamber above the piston and below the piston, the piston is formed weighted, for example concrete, and include at least three rods connected to the cylinder by flexible connections, envelopes identical pulleys mounted on a floating pontoon, the verticality of the axis of the cylinder is maintained by the anchors, or the cylinder is made negative buoyancy, made of metal or reinforced concrete, and installed with the clip on the bottom, while on the upper deck of the floating pontoon can accommodate residential or cultural facilities.

A possible variant of wave and tidal energy installation, in which the floating pontoon is made with a cylindrically� neck in the middle part, vertical cylinder, made with positive buoyancy, is partially under water so that its upper portion is located with the elevation above the water in the cylindrical neck of the floating pontoon and floating pontoon to make vertical reciprocating movement relative to the cylinder, and a pulley fixed on additional racks floating pontoon.

A possible variant of wave and tidal energy installations with surface location of the top of the cylinder in which the cylinder and the piston is formed as a linear electric generator with permanent magnets, the stator winding are located along the body of the cylinder, the piston is made in the form of a coaxial cylinder of smaller diameter with the reciprocating movement within the stator winding and equipped with magnets, with additional racks floating pontoon covering a fixed pulley and the generator design with signal colour and light the beacon.

Possible option of equipping the cylinder with positive buoyancy in the lower part of additional weights to maintain the vertical position of the cylinder, and an additional established in submerged cargo tensioning the flexible connection, negatively buoyant, less than the anchors, and soedinenii anchor via a flexible connection, envelope additional pulley mounted on the bottom side of the cylinder.

A possible variant of wave and tidal energy installations in which a number of cylinders fixed on a surface and/or underwater additional site, in the form of a single floating or gravity platform.

A possible embodiment of a pulley of two interconnected on one axis of the pulleys of different diameter, with flexible connection consists of two branches flexible connections: the first branch of flexible coupling one end connected with the cylinder, the other end is wound on a pulley of smaller diameter, the second branch of flexible coupling one end connected with the piston rod, the other end is wound on a pulley of larger diameter.

The proposed design solution improves the efficiency of wave and tidal energy installations, the increasing amplitude of oscillation of the piston, due to the fact that the flexible link connected at one end with the cylinder and the other with the piston rod, thrown over a pulley floating pontoon, thus, the distance of the upward movement of the piston is approximately twice the distance of the upward movement of the floating pontoon, which is especially important for low altitude fluctuations of the tides.

List of figures

Fig.1 shows schematically a wave and tidal power plant with underwater �the location of the cylinder. Fig.2 shows a diagram of wave and tidal energy installations with horizontal dimensions of the cylinder exceeding the vertical. Fig.3 schematically shows a variant of wave and tidal energy installations with surface location of the top of the cylinder in which the cylinder and the piston is formed as a linear electric generator.

Detailed description of the invention

Wave and tidal power installation comprises a floating pontoon 1 mounted thereon a pulley 2 and located below the water vertical cylinder 3 with positive buoyancy, coupled with a flexible coupling 4 to the armature 5, mounted on the bottom of the piston 6, is placed inside the cylinder 3 with the possibility of reciprocating movement down under its own weight, a spring or other return mechanism, and up under the influence of the displacement of the floating pontoon 1 raised by wave or tide that provides suction to remove the working fluid from the cylinder 3 and supply it to the generator or the shore. What is new is that through the pulley 2 floating pontoon 1 is spanned by a flexible connection 7, connected at one end with the cylinder 3, and the other with the rod 8 of the piston 6.

The variant of the equipment of the power plant several underwater cylinders 6, when acompliabuy the pontoon 1 is equipped with several pulleys 2, located on the perimeter of the floating pontoon 1, and/or around the perimeter of the cutout (Windows) 9 floating pontoon 1, and/or in the middle part of the floating pontoon 1 formed with vertical openings 10 for the passage in them flexible connections 7.

The variant designed for placement in the closed waters wave and tidal energy installation, in which the floating underwater pontoon 1 and the cylinder 3 is formed with a horizontal than vertical, in addition, the cylinder 3 is double-acting and contains the working chamber 11 above the piston 6 and below the piston 6, the piston 6 are weighted, for example concrete, and to maintain the verticality of its axis with at least three rods 8 connected to the cylinder 3 by flexible connections 7, envelopes identical pulleys 2 on a floating pontoon 1, the verticality of the axis of the cylinder 3 is provided with several anchors 5 or the cylinder 3 is made negative buoyancy, made of metal or reinforced concrete, aligned and installed on the bottom. On the upper deck of the floating pontoon 1 can accommodate residential and cultural facilities.

A possible variant of wave and tidal energy installation, in which a floating pontoon 1 is formed with a cylindrical neck (window) 9 in the middle part of the vertical cylinder 3 is floating and the upper esocast is located within a cylindrical cutout (Windows) 9 floating pontoon 1 with elevation above the water and floating pontoon 1 to perform vertical reciprocating movement relative to the cylinder 3 and the pulley 2 is mounted on additional racks 12 floating pontoon 1.

A possible variant of wave and tidal power plants with above-water location upper cylinder 3, in which the cylinder 3 and the piston 6 is made in the form of a linear generator with permanent magnets, the stator winding 13 are located along the body of the cylinder 3, the piston 6 is made in the form of a coaxial cylinder of smaller diameter with the reciprocating movement within the stator winding 13 and is fitted with magnets 14, with additional racks 12 floating pontoon 1 is fixed hiding the pulley 2 and the generator design with signal 15 color and light the beacon.

Possible equipment variant cylinder 3 in its lower part an additional burden for maintaining the vertical position of the cylinder 3 and additional installed in submerged cargo 16 tensioning the flexible connection 4 negatively buoyant, less than the armature 5, and connected to the armature 5 through a flexible connection 4, the envelope of the pulley 17 mounted on the bottom side of the cylinder 3.

A possible variant of wave and tidal energy installations in which multiple vertical cylinder 3 is fixed on a surface and/or underwater platform, in the form of a single floating or gravity platform.

The variant view is� pulley 2 from two interconnected on one axis of the pulleys 2 different diameter, this flexible connection 7 consists of two branches flexible connection 7: the first branch of the flexible connection 7 with one end connected to the cylinder 3, the other end is wound on the pulley 2 of smaller diameter, the second branch of the flexible connection 7 one end connected with the rod 8 of the piston 6, the other end is wound on the pulley 2 of larger diameter.

The installation operates as follows: when exposed to waves or tide floating pontoon 1 with the pulley 2 is moved in the vertical direction upwards and pull the flexible connection 4, thrown over a pulley 2, so that the branch flexible connection 4, the fixed end of the cylinder 3, is extended by the amount of the upward movement of the floating pontoon 1, while the other branch of the flexible connection 4, connected with the rod 8 of the piston 6, is shortened by approximately the same amount of the upward movement of the floating pontoon 1, but moving its end at the point of connection with the rod 8 relative to the fixed cylinder is approximately twice the distance of the upward movement of the floating pontoon, as a result, the rod 8 and the piston 6 is moved approximately twice the distance of the upward movement of the floating pontoon that provides suction for the removal of approximately twice larger than that of counterparts, the volume of the working fluid from the cylinder 3 and supply it to the generator or the shore.

Thus, constructive executed�e wave and tidal energy plant provides increased efficiency of the plant by increasing the amplitude of oscillation of the piston, what a flexible connection connected at one end with the cylinder and the other with the piston rod, thrown over a pulley floating pontoon.

1. Wave and tidal power installation comprising a floating pontoon mounted thereon at least one pulley, at least one vertical cylinder located under water and connected by a flexible connection with the anchor installed on the bottom of the piston, at least one rod disposed inside a cylinder with a reciprocating move down under its own weight or a spring and up under the influence of the displacement of the floating pontoon raised by wave or tide that provides suction to remove the working fluid from the cylinder and supply it to the generator or the shore, wherein the vertical cylinder is formed with positive buoyancy, is under water either fully or partially implemented with negative buoyancy and installed with fixing aligned on the bottom, when the cylinder is connected to the piston rod with a flexible coupling, thrown over a pulley floating pontoon, whereby the distance of the upward movement of the piston is approximately twice the distance of the upward movement of the floating pontoon.

2. Apparatus according to claim 1, characterized in that it is equipped with several underwater cylinders, FL�m floating pontoon is equipped with several pulleys, located on the perimeter of the floating pontoon, and/or around the perimeter of the cutout or window floating pontoon, and/or in the middle part of the floating pontoon, made with vertical holes for passing them in flexible connections.

3. Apparatus according to claim 1, characterized in that the floating underwater pontoon and the cylinder is formed with a horizontal than vertical, in addition, the cylinder is made double-acting and contains the working chamber above the piston and below the piston, the piston is formed weighted, for example concrete, and include at least three rods connected to the cylinder by flexible connections, envelopes identical pulleys mounted on a floating pontoon, the verticality of the axis of the cylinder is maintained by the anchors, or the cylinder is made negative buoyancy, made of metal or reinforced concrete, and installed with fixing to the bottom, at the same time on the upper deck of the floating pontoon can accommodate residential or cultural facilities.

4. Apparatus according to claim 1, characterized in that the floating pontoon is made with a cylindrical cutout in the middle part, vertical cylinder, made with positive buoyancy, is partially under water so that its upper portion is located with the elevation above the water in the cylindrical neck of the floating pontoon and floating�his pontoon to make vertical reciprocating movement relative to the cylinder, a pulley mounted on additional racks floating pontoon.

5. Apparatus according to claim 4, characterized in that the cylinder and the piston is formed as a linear electric generator with permanent magnets, the stator winding are located along the body of the cylinder, the piston is made in the form of a coaxial cylinder of smaller diameter with the reciprocating movement within the stator winding and equipped with magnets, with additional racks floating pontoon covering a fixed pulley and the generator design with signal colour and light the beacon.

6. Apparatus according to claim 1 or 4, characterized in that the cylinder with positive buoyancy in the lower part equipped with additional weights to maintain the vertical position of the cylinder and the additional installed in submerged cargo tensioning the flexible connection, negatively buoyant, less than the armature and connected to an anchor via a flexible connection, the envelope of an additional pulley mounted on the bottom side of the cylinder.

7. Apparatus according to claim 4 or 5, characterized in that the several cylinders fixed on a surface and/or additional underwater site in the form of a single floating or gravity platform.

8. Apparatus according to claim 1, characterized in that the pulley is made of two interconnected on the same axis skivo� of different diameter, this flexible connection consists of two branches flexible connections: the first branch of flexible coupling one end connected with the cylinder, the other end is wound on a pulley of smaller diameter, the second branch of flexible coupling one end connected with the piston rod, the other end is wound on a pulley of larger diameter.



 

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Tide power system // 2326264

FIELD: electric power engineering.

SUBSTANCE: invention is related to electric power engineering and may be used for generation of electric power at the account of ocean tides, ocean waves, wind from the shore by integration of tide energy with hydrogen technology. Barrage for energy extraction from potential energy contained in ocean tides, consists of multiple support stands installed with the same interval from each other in the ocean along the perimeter line and attached to the sea bottom. Panels are installed one above the other and fixed between pairs of neighboring support stands. Gaps between every panel and support stands are leak-tightened. Pairs of support stands from two rows of support stands for caissons. Support panels are placed between every pair of opposite support stands from the mentioned two rows so that caisson is supported by support panels, so that they form platform between two rows for caissons. In every caisson there are turbines with facilities that provide for water passing through the turbine by operator command. Electric generators are connected to at least one turbine. Barrage has no gaps or slots. As a result the ocean is separated from the area inside the barrage, excluding time, when operator provides water passing through turbine for electric power generation. Invention works at different loads and functions as power complex with electrolyzers and fuel elements for generation of electric power by request, excluding by that impulse character of traditional tide energy. Hydrogen may be produced as target product.

EFFECT: reduces cost of works.

6 cl, 17 dwg

FIELD: engineering industry.

SUBSTANCE: invention refers to water power engineering, and namely to water-borne vehicles producing electric energy used for external consumers and for its own movement. Energy-producing floating platform consists of a triangular-shaped platform with a power unit, which is elevated above water surface by means of columns, floats, piston-type pumps, and supports which are hinged to columns. Floating platform is equipped with wind impellers installed on brackets and being synchronously rotated by propelling screws with wheels. Between each support and float arranged are piston-type pumps. Inside each column there is an axle on lower end of which there installed is a propelling screw and a wheel, and the other axle end is taken out above the platform surface and is provided with a pulley. Over pulleys there passed is a flexible rope pulled over by a steering mechanism.

EFFECT: designing the maneuvering self-moving energy-producing floating platform which is capable of autonomous movement on water surface.

2 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to hydroenergetics, to low pressure flows of seas, rivers and water outlets of hydro electric stations and reservoirs. A tidal hydroelectric plant contains a cylindrical body of the machine compartment with a gear box and electric generator of the tail hydroturbine with arms, mounted on its axis and the axis of rotation. On the upper part of the body is fixed a flat pylon, on the end of the pivot system and the axis of rotation. The body is suspended on a crossbeam in the passage of the catamaran for lifting the power station to the level of the servicing platform on the grooves of the support bridge pier, connected by the arch with a lifting mechanism. Arms of the hydroturbine are made short and wide sweptforward on the leading edge and with a concave surface in the form of a parabolic curve, and a convex surface of the tailpiece perforated with slanting slits.

EFFECT: reduces the depth of the low pressure power stations, increases the hydrodynamic quality of the hydroturbines arms, and ensures periodic lifting of the power station from the water.

3 cl, 4 dwg

Water power device // 2361109

FIELD: engines and pumps.

SUBSTANCE: invention is related to the field of renewable power sources, namely to use of potential energy accumulated in water reservoirs and its conversion into other types of energy, mostly in electric energy. Water power device comprises the following components that interact with each other - platform, multiplier, power generator, the first and second shafts, in which according gears are installed, overrun clutches and sprockets that interact with chain. Device additionally comprises the first and second trolleys. They are connected to each other by chain and are installed in appropriate inclined guides with the possibility of reciprocal motion. Appropriate reservoirs are installed in trolleys, being equipped with exhaust water valves. In upper points reservoirs interact with appropriate newly introduced inlet water valves and units of position fixation, and in lower points - with end supports.

EFFECT: makes it possible to simplify design and increase efficiency of energy transformation.

7 cl, 6 dwg

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