Device for outfeed of energy of sea waves

FIELD: electricity.

SUBSTANCE: invention relates to equipment for production of electric energy by conversion of energy of sea waves. The device for outfeed of energy of sea waves comprises a floating object 2, a converter of energy of sea waves located on it, including a generator of electric energy and a submersible element 1, in the working position located below the bottom of the object 2. The area of projection of the element 1 onto the plane, which in the working position of the device is a horizontal plane, is more than each area of its projections onto two other planes perpendicular to the first plane and each other. The profile of the element 1 is made as a convexo-convex or convex at one side and concavo-convex at the other side, or concavo-convex at two sides. The element 1 is connected with the converter of energy with the possibility of relative displacement of the element 1 and the object 2. The energy converter includes a sliding link. The element 1 has positive buoyancy and is connected with the sliding link as capable of transferring mechanical power to the generator with submersion of the object 2.

EFFECT: invention is aimed at increasing efficiency of outfeed of energy of sea waves.

7 cl, 14 dwg

 

izobretenie relates to techniques for generating electrical energy by converting the energy of sea waves.

There is a method of energy from sea waves (see RF patent № 2221933, publ. 20.01.2004) using placesthe by transferring this energy to the actuator by means of vertical rods and gear. In the apparatus of the way, buoyancy, energizing waves are guides mines, which are delicate, transferring energy to the actuator with gear racks that are installed in the box-shaped rods can move in them, and hrapovic gears, which are mounted on the main shaft, the rods have a parallel guide shafts, enter the toothed rack in engagement with rapovymi gears during movement of placesthe up and take them out of engagement with the movement of placesthe down, accumulate mechanical energy on the line of the main shaft, which have horizontally using the flywheel and transmit it through the gearbox to the generator.

Also known wave energy complex (see RF patent № 2410489, publ. 27.01.2011), which consists of a hinged dock, console, pendulum hinge, ramps and linear generator. Along the ramp attached to the rod that transmits mechanical is such fluctuations in the magnetic core of the linear generator. The linear generator is located along the axis of movement of the RAM indicated by the angle of the ramp. The rod passes rectilinear translational oscillations on the magnetic core, which is moving inside the conductive coil (winding)in the case of the generator exciting current.

All known devices use one of the basic wave effects - periodic change of water level at a point relatively stable body. In these devices, a selection of wave energy occurs in the form of work performed by a wave process of the working fluid (working body wave power station (WPS) - float, pontoon, buoyancy). In turn, the working medium passes the received energy Converter of mechanical energy to the generator.

Functional expression of the work is the product of the force on the moving body in the direction of this force. Therefore, for the selection of energy in addition to mass or surface forces will also be measured and the movement of the working body or the working body.

In the technical object, where the working medium is involved in the creation of an internal energy flow that exists due to the movement of a single body object relative to another (the rotor relative to the stator in the wave energy sector according to the patent of Russian Federation № 2410489, the toothed rack relative what about the gear shaft of the generator - in the device according to the patent of Russian Federation № 2221933, the piston relative to the cylinder, hydraulic flow relative to the blades or turbine blades in the known technical devices such as WAVESTAR), it is important not to move the working fluid, and moving it relative to another body of the same object, in which is formed an internal energy flow.

For the formation of the possible relative movement of bodies within a single object requires the implementation of special technical measures - stabilization of one of the bodies in the earth's space.

In these decisions stabilization involves the fixation of the fixed elements (cylinder, the stator), mounted on a fixed or floating structures. Thus, the dimensions of moving parts - gear racks, rods of the piston cylinder, the rotor and stator of the linear generator - have design features that limit their movement relative to the height of the resulting anxiety, which is a significant disadvantage and affects the reliability of operation.

A major drawback of these solutions is that on the stationary elements, which are rigidly mounted on the supporting structures, passed a significant burden associated with resistance generator that makes designing massive supporting structures and, as sledstvie is, expensive. All these technologies are critical nodes movement of the working bodies and in case of significant wave oscillations are forced to go into emergency mode. For them must be created supporting structure.

Also a significant drawback to such devices are restrictions associated with changes in sea level (tides)that enforces bearing structures with the capability of raising and lowering that affects the cost of the devices and operating costs.

Moreover, given the distribution of the energy flow through the depth of wave propagation, for the most complete selection of power is necessary to ensure the cooperation of the working bodies of the WPS with the liquid at the maximum layer energy transfer.

However, the known device surface location (pontoons, floats, plywaczewski) work with the upper layers of the energy transfer, and a significant portion of variable depth flux density energy miss.

Moreover, the principle of interaction of the working bodies with waves creates the effect of the generation of secondary waves at the output of the WPS, which significantly reduces the scope of their application as a protective device from the harmful effects of storms.

The closest to the invention is ustroystvo selection of energy of sea waves, contains a floating object, the energy Converter of the waves, comprising a generator of electrical energy, and the immersion element associated with a floating object with the possibility of relative movement and located in the working position below the bottom of the floating object, and in the working position the submersible hollow element filled with seawater, that is, has a negative buoyancy and floating object is associated with the energy Converter located on the immersion element, through a flexible connection in the form of a cable. Also a variant, when the power Converter is located on a floating object and is associated with a submersible element by means of a cable. This option is selected as the closest analogue of the proposed invention. The device is equipped with a spring to bias the immersion element down relative to the floating object and the cable tension (WO 2010/007418 A2, publ. 21.01.2010).

In the known device partially solved the problem of increasing the efficiency of energy conversion due to more full of energy extraction at variable depth flux density of energy, as well as the problem of stabilization of the wave power station and the interaction of the working bodies that organize the flow and transformation of energy, without the use of support structures.

However, in the known device, because the submerged element in the work of SOS is in nformation has a negative buoyancy, a floating object (or immersion element connected to the energy Converter of flexible rope when lowering the floating facility at the descent from the crest of a wave will not be transferred force from the floating object (or from a submersible element) to the energy Converter and will not be automatically folding movable elements of the energy Converter and move them in the starting condition, therefore, will not be transmitted mechanical power to a generator of electrical energy. Transmission of mechanical power will only occur when lifting the floating object on the crest of a wave. In addition, to move the system in the starting condition, i.e. for cable tension, you must have the springs.

The objective of the invention is to increase the efficiency of energy extraction of the waves.

The technical result, which is aimed invention is to provide a transmission of mechanical power to the power Converter not only when lifting the floating element on the crest of a wave, but to descend from the ridge, as well as providing automatic folding movable elements of the Converter in the starting condition without the use of a special purpose springs.

This technical result is achieved in that the device for selection of marine energy the waves, containing the floating object, a transducer sea wave energy comprising a generator of electrical energy, and the immersion element in the working position located below the bottom of the floating object, and the projected area of the immersion element on a plane, which in the working position of the device is the horizontal plane, more of each of the areas of its projections on two other planes, perpendicular to the first plane and each other, and the profile of the immersion element is made biconvex or convex on one side, and convex-concave on the other hand, or convexo-concave on both sides, while the immersion element is connected to the Converter energy with the possibility of relative movement of the immersion element and the floating object, the energy Converter includes a sliding connection, and the immersion element has positive buoyancy and is connected with a sliding connection with the transmission of mechanical power to the generator when submerged floating object.

The energy Converter in one embodiment, comprises a fixed to a floating object, a hydraulic cylinder with a rod associated with submerged element, and a hydraulic motor connected to a generator and communicated with the hydraulic accumulator and the tank with piping and check valves communicated to the cavities of the cylinder.

The energy Converter in another embodiment, includes coupled to a turbine generator associated with at least one telescopic pump connected to the immersion element. Telescopic pump is a positive displacement pump reciprocating with step (telescopic) connection.

The energy Converter in the third embodiment includes a linear generator with a magnetic core connected to a submersible element.

In the particular case of the immersion element can be performed, at least one rotary shutter.

The device may be provided with a hinged interconnected links, each of which is located one end into the corresponding guide groove of the immersion element and the other end into the corresponding guide groove of the floating object.

In another embodiment, the device may be equipped with chains, each of which has one end rigidly connected with the immersion element and the other end located in the corresponding guide groove of the floating object.

Next, the immersion element is conventionally called hydrodynamic screen (GDA).

The invention is illustrated by drawings.

In Fig. 1 shows a preferred variant of the device with hydraulic cylinder; Fig. 2 is a view of the device of Fig. 1 from the side; Fig. - option device with telescopic pump; Fig. 4 is a variant of the device with a linear generator of Fig. 5 is a variant of the device with the rack; Fig. 6 - 9 scheme of work GDE with rotary shutters: Fig. 6 GDA with closed doors in the section, Fig. 7 is a General view of Fig. 8 GDA open up the shutters in the section, Fig. 9 is a General view of Fig. 10 is a variant of the device with pivotally connected links; Fig. 11 is a variant of the device with the parts rigidly connected with GDA; Fig. 12 is a diagram of forces on a floating object, GDE; Fig. 13 projections of GDA; Fig. 14 is an embodiment of GDA with the slots at the top and bottom.

A preferred variant of the device for selecting the energy of sea waves contains a submersible element hydrodynamic screen (GDA) 1 and the floating object 2, which are interconnected by a sliding connection (transmission) hydraulic cylinder 3. GDA 1 is in the water below the bottom of the floating object 2. The energy Converter comprises a fixed to a floating object 2 cylinder 3, a rod 4 which is connected with GTA 1, and the body - with floating object 2, and the hydraulic motor 14 connected to a generator 15 and is in communication with the hydraulic accumulator 12 and the tank 13 through the piping and check valves 5-8 communicated with the cavities of the cylinder 3.

In rod and Rodless cylinders, the cylinder cavities created 3 g is grotticelle injection and vacuum, using check valves 5-8 converted into the flow of working fluid through the pipes 9 working pressure and suction nozzles 10.

When the movement of the floating object 2 upwards the piston 11 of the cylinder 3 will perform relative movement down. The valve 5 is closed and valve 6 is opened, and the fluid enters the accumulator 12. In turn, the valve 7 will be opened and valve 8 is closed, not flowing liquid from the tank 13 into the cylinder 3. From the tank 13 in the hydraulic accumulator 12 provides a relatively uniform flow of the working fluid required power through the hydraulic motor 14, which generates a torque for rotating the shaft of the generator 15, which converts the mechanical power into electricity.

The energy Converter of sea waves into electrical energy includes a sliding connection (transmission) and the generator 15.

Sliding link GTA 1 and the floating object 2 can also be carried out, for example, in the form of one or more telescopic pump 16, which pumped the water flow to rotate the shaft of the turbine 17, associated with the generator 15 (Fig. 3), or in the form of a rod 18 of the magnetic core 19 moving in the winding 20 of the linear generator (Fig. 4) or in the form of a toothed rack 21, the engagement with the gear 22, mounted on the shaft of the generator 15 (Fig. 5).

In any embodiment, the device is tion when lifting the floating object (pontoon) 2 on the crest of a wave GDA 1 its entire upper surface resists lifting, and at this time their sliding relationship will be disclosed. When submerged floating object (pontoon) 2 due to the fact that GTA 1 is less perturbed layers of the water, its lower surface will be subjected to hydrostatic pressure, preventing the immersion, and sliding (telescopic) system will be collected, transmitting mechanical power sliding through the transmission to the generator 15.

Sliding communication (transmission) performs two functions, namely the function of GDA 1 with a floating object 2 and the function of the transmission, transporting emerging mechanical efforts (mechanical power) to the system of converting mechanical power into electrical energy.

The mechanical energy of the waves has different components: potential energy position, caused by the difference between the level of the crest and trough of a wave and hydrostatic pressure on a horizontal surface, and kinetic energy associated with the energy of the circulating movement of water masses. Effectively convert the first component can WPS with one floating object, then how to use the kinetic energy, i.e. the energy of the moving mass of water in the wave, may submersible rotors and water wheels.

The use of the device with GTA 1, buried in the less disturbed water layers and connected to a floating object dinamicheskoi (sliding) communication, functioning as a fastening and telescopic transmission, allows the use of both components of the mechanical energy of the waves.

This is due to the fact that buried in the less disturbed layers of fluid GDA 1 affects a circular motion of water particles. The force exerted on GTA 1 and the floating object 2 will act in different directions (Fig. 12). When the lifting force on a floating object 2 on GD 1 will be the force pressing, especially this effect will be significant, if GDA 1 will be shifted relative to the floating object 2.

The projected area of GDA 1 on the plane, which in the working position of the device is the horizontal plane, more of each of the areas of its projections on two other planes, perpendicular to the first plane and to each other (see Fig. 13).

GDA 1 has a large area of the upper and lower surfaces, each of which is always larger than the lateral, and which can be calculated depending on the operating parameters of the floating object 2, planned capacity and the location of the wave power station. The upper and lower surfaces of GDA 1 is placed horizontally or at an angle determined in accordance with the design features of the WPS.

Feature of the device is that the hydrodynamic screen 1 has positive buoyancy and is otsutstvie excitement arbitrarily takes the starting position, rising up and rising in the assembled position of the transmission elements, which may be elements of telescopic hydraulic pump, or the working spindle hydraulic transmission, or the stock manual transmission. GDA 1 is below the floating object 2, therefore, less perturbed layers of water. The amount of immersion of GTA 1 and its location relative to the floating object 2 depends on the hydrological situation in the vicinity of the proposed WPS location and correlates with the installed capacity of the device and the nature of the designed interaction with the wave mode.

GDA 1 may be made in the form of a large body with internal cavities or monolithic material whose density is less than the density of water, which gives it a positive buoyancy.

GDA 1 may have a different streamlined profile, for example lenticular segment profile, as shown in Fig. 1, 3-12, or with one side convex and the other convex-concave segment profile, as shown in Fig. 2, or convexo-concave on both sides of segment profile, as shown in Fig. 14. You can perform GDA flat, but rounded shape gives it a better hydrodynamic properties.

GDA 1 may have an open cavity (cavities, indentations) on the top or on the bottom, or on both sides (see the IG. 6-9 and Fig. 11) to increase the hydraulic resistance rise when working sliding due to the tensile movement of the floating object 2 is up and the hydraulic resistance of the indentations when working sliding connection indentation when the floating object 2 moves downward.

GDA 1 can have the system pressure (Pw) on its surface in the case of wave loads and accordingly directed effort (F>)in excess of the estimated parameters (Fig. 6-9). The system is a sash 23, pivotally connected to the edges 24 of the loop holes in GTA 1 and opening when pressure (Pw) more calculated. The opening of the valves 23 can occur in a known manner automatically, if the pivot point 25, which connects the sash 23 circuit 24, made in the form of torsion impedance of the pressure of the mass of water of a certain power and holding the shutter 23 in the closed position, but turning GDA 1 in the direction of excessive force pressure (Pw) in the event of loads more calculated.

However, disclosure of the sash 23 is greater, the greater will be created pressure on her. The result will be a regulation reducing the force on GD 1 up to its full disclosure.

Accordingly, there will be a decrease resistance is GTA 1 with full disclosure of the transmission, to avoid accidental mechanical impact on the fasteners and attachments upon the occurrence of wave loads in excess of the settlement.

Disclosure of the valves 23 can occur in a controlled manner using controlled hydraulic rotary mechanisms for strain readings of the sensors with the control server, which can be used for such devices.

GDA 1 may be equipped with one or several valves 23 depending on the design and constructional features. Sash 23 may unfold along the axis of GDA 1 or transversely, and may also consist of several components. Torsions and swivel mechanisms can be located along one side of the sash 23 or to be in the opposite points of attachment of the leaf 23 to the axis of rotation.

A system for reducing the pressure on the surface of GDA 1 in the case of wave loads in excess of design parameters, can be arranged in a known manner, for example, retainers in the form of a magnetic system consisting of blocks of permanent magnets.

The floating object 2 can be connected with one or more of GDA 1, depending on the design and purpose of the WPS. GDA 1 may have one or more structural relationships in the form of a sliding transmission with PL is bucim object 2, located on the surface of the sea.

To give the device the structural strength of the telescopic sliding of the fastening system of GDA 1 may be made in the form of links 26 which, when the hinge connection between the ends are located in the respective guide grooves 27 and 28, made respectively in GTA 1 and the hull of the floating object 2 (Fig. 10). In another embodiment, the links 26 may be rigidly attached to GTA 1 and the guide grooves 29 of the floating object 2 (Fig. 11).

This design will allow you to move the floating object 2 on the wave relative to GDA 1, while preserving the dynamics of the transformation of energy flow on the vertical axis, indicated by the direction of the force (F) and reducing lateral loads on all components.

The invention is directed to the creation of wave power stations, self-adjusting to the change in sea level due to the occurrence of high tide (low tide). The proposed device eliminates the generation of secondary waves at the output of the WPS when the energy complexes, consisting of groups of wave stations are located along the shoreline and are designed to protect the coast from storms.

1. The device for selecting the energy of sea waves containing the floating object, a Converter of energy of sea waves, including the electric generator is coy energy, and the immersion element in the working position located below the bottom of the floating object, and the projected area of the immersion element on a plane, which in the working position of the device is the horizontal plane, more of each of the areas of its projections on two other planes, perpendicular to the first plane and each other, and the profile of the immersion element is made double convex, or convex on one side and convex-concave on the other hand, or convexo-concave on two sides, with a submersible element connected to the energy Converter with the possibility of relative movement of the immersion element and the floating object, the energy Converter includes a sliding relationship, and the immersion element has positive buoyancy and is connected with a sliding connection with the transmission of mechanical power to the generator when submerged floating object.

2. The device according to claim 1, characterized in that the energy Converter comprises a fixed to a floating object, a hydraulic cylinder with a rod associated with submerged element, and a hydraulic motor connected to a generator and communicated with the hydraulic accumulator and the tank with piping and check valves in communication with the cavities of the cylinder.

3. The device according to claim 1, characterized in that the energy Converter includes connected with what eneration turbine, associated at least one telescopic pump connected to a submersible element.

4. The device according to claim 1, characterized in that the energy Converter includes a linear generator with a magnetic core connected to a submersible element.

5. The device according to claim 1, wherein the immersion element is made of at least one rotary shutter.

6. The device according to claim 1, characterized in that it is equipped with a hinged interconnected links, each of which is located one end into the corresponding guide groove of the immersion element and the other end into the corresponding guide groove of the floating object.

7. The device according to claim 1, characterized in that the supplied links, each of which has one end rigidly connected with the immersion element and the other end located in the corresponding guide groove of the floating object.



 

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25 cl, 22 dwg

FIELD: physics.

SUBSTANCE: wave energy generator contains a floating body intended for swimming in a mass of water. The electric machine (103) disposed in the body has an anchor and a field source, wherein the machine (103) has a fixed part connected to the body and a movable part. The counterweight assembly (104) is movable in the body and comprises a movable part of the machine (103). The relative movement of the counterweight unit and the stationary part of the machine (103) generates electrical energy. The energy storage device (400) stores the energy generated by the machine (103). The control system (200) determines a bi-directional energy flow between the power storage device and the armature. The energy returns to the machine (103) to drive the counterweight assembly antisymmetrically to the body movement.

EFFECT: increasing the efficiency in generating energy.

23 cl, 21 dwg

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