Sea wave plant

FIELD: energy.

SUBSTANCE: invention relates to alternative power engineering and is intended for use in the coastal area of large water areas. Sea wave plant comprises a support element in the form of vertical screw pile 1 with damper 2 at its end, made with the possibility of vertical movement of float 10 with attached rod 8 of piston pump 7, surrounded by vertical grate 4, pipelines, valves. Pump 7 is installed in the upper section of grate 4, the lower part of which is attached to pile 1. In the upper part of piston pump 7 there are holes protected with splash-proof cap 14.

EFFECT: disclosed is a simplified design of a sea wave energy plant.

3 cl, 5 dwg



Same patents:

FIELD: power industry.

SUBSTANCE: invention refers to power generation devices, particularly electric power generators utilising wave motion in water basins. Device includes at least one functional unit containing at least a main or drive shaft with a drive gear (13b) attached fast to it, engaging and rotated by linear control element (15b), at least two driven shafts (21b, 22b) actuated by at least main or drive shaft of unidirectional drive device, each capable of connection at least to electric power generator, two driven cogwheels (18b, 19b) on opposite ends of main or drive shaft, drive device connecting each cogwheel (18b, 19b) to the main or drive shaft, thus aligning the shaft rotation under effect of element (15b) with the cogwheel rotation (18b, 19b), and flat cogwheel engaging the cogwheel (18b, 19b). Each cogwheel (18b, 19b) is connected to respective shaft (21b, 22b).

EFFECT: device installed onshore or off-shore in floating, semi-submerged or submerged position.

9 cl, 14 dwg

FIELD: electricity.

SUBSTANCE: invention relates to an electric device with a winding (12) and a device for induction of current in a winding. The bridge circuit (400) electrically connects the winding (12) with the load (13). According to the invention the bridge circuit (400) comprises a capacitor device (401, 402) which is adapted to resonance with an impedance of the winding (12).

EFFECT: increase of power takeoff coefficient of a power unit.

21 cl, 8 dwg

FIELD: power industry.

SUBSTANCE: wave energy conversion unit includes flap 4 swung with waves and having positive buoyancy, horizontal hinges 3, fixed foundation 1, power takeoff device connected to foundation 1. The unit is equipped with vertical frame 2 connected along the lower edge to foundation 1 through horizontal hinges 3, which is also connected to foundation 1 by means of the power takeoff device made in the form of linear electric generator 7. Flap 4 has a possibility of free sliding along vertical guides of frame 2, thus providing optimum position relative to the varying water level.

EFFECT: providing use efficiency of wave energy and improving reliability of the unit.

3 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: invention can be used for electric power generation by conversion of wave energy. The power plant consists of a streamline water-tight float 1 and a cylindrical body 3 placed vertically inside the float with a pendulum 4 located inside the body. The pendulum 4 is suspended to the end of a cable 5 which is thrown over a block 6 installed at a rotating axis 7. The other end of the cable 5 is connected to an anchor 9 placed at the bottom. A rotor with permanent magnets of electric generator 10 is connected to the rotating axis 7 of the block. A stator of the generator 10 is fixed in the body 3. The stator winding of the generator 10 is connected to the input of a charger 11 while the output of the charger 11 is connected to an accumulator battery 13 which is located together with the charger 11 in an instrumentation module in the upper part of the float 1.

EFFECT: invention is oriented to increase in power, reduction in dimensions and weight of the float wave electric power plant.

3 dwg

FIELD: power engineering.

SUBSTANCE: mechanism of permanent rotation to vary oscillating movement into unidirectional rotation of an output shaft comprises a gear 27, attached to an input shaft 321a, the first coupling 322c, attached to the input shaft 321a, a gear 323f, connected between the gear 27 and the coupling 322c, a gear 323j, connected to an intermediate shaft 325a, a gear 323g and a single-sided coupling 322d, connected to the intermediate shaft 325b, an intermediate shaft 325c with a gear 323l, connected to the single-sided coupling 322d. The coupling 322c is connected to the intermediate shaft 325a. Connection between the gears 323j and 3231 is achieved by means of the intermediate gear 323k, which is connected to the output shaft 327.

EFFECT: provision of high extent of wave energy usage.

16 cl, 18 dwg

FIELD: power engineering.

SUBSTANCE: device using energy of sea waves comprises a floating body (1), connected by means of a flexible connecting facility (3) with a converter (6), moving reciprocally in a linear generator (2). The floating body (1) is suited for floating on sea, and a stator (8) of the generator is suited for anchoring at sea bottom. A guide device (9) is installed at the inlet of the connecting facility (3) into a jacket (4) of the generator (2) and comprises a hollow body (12), having lower and upper holes (17, 18). The upper hole (18) is larger than the lower hole (17). The connecting facility (3) is suited for passage through the lower hole (17) and the upper hole (18) of the guide device, besides, a part of the connecting facility momentarily arranged between the specified holes, is determined as a guide part, at the same time the lower hole (17) is arranged so that the guide part next to the lower hole is at one straight line with the specified central axis, and the upper hole (18) is arranged so that the guide part next to the upper hole may form an angle with the central axis. The invention also relates to the method for power generation and to application of the device using energy of sea waves for power generation.

EFFECT: generation of power from potential sources of energy without regard to relative side position of a floating body.

24 cl, 4 dwg

FIELD: power industry.

SUBSTANCE: wave energy converter includes platform 22 submerged into water space. Platform 22 is supported in water by means of fully buried float and retained by means of halyard 28, such as chain, rope or cable wire, which attaches the platform to bottom of water space. Pump assembly is fixed on platform and includes double-acting pump 9 performing back-and-forth movement and surface float 2. Float 2 can float on surface of water space. Floatability of surface float 2 creates upward stroke of double-acting pump 9 when wave height increases, and weight of surface float 9 creates downward stroke of double-acting pump when wave height decreases. Displacement of fully sunken float is larger than displacement of combined sunken weight of platform 22, pump assembly and halyard 28 so that halyard 28 remains stretched during downward stroke of double-acting pump 9.

EFFECT: creation of efficient wave energy converter.

16 cl, 7 dwg

Wave power plant // 2467199

FIELD: machine building.

SUBSTANCE: invention refers to wave power plant for generation of electric power. Wave power plant includes a floating body provided with possibility of floating in the sea, and electric linear oscillator with stator 5 and translator 6 performing back-and-forth movements. Stator 5 is provided with possibility of being anchored at the sea bottom. Translator 6 is connected to floating body by means of connection device. Translator 6 is supported with many rolling elements 15 so that circumferential gap 14 is formed between stator and translator. Each rolling element has elasticity that is rather low to comply with the condition consisting in the fact that the result of change of width "d" of the gap is the change of full force of rolling elements 15, which exceeds full magnetic forces on translator 6, which are the result of the above change of width "d".

EFFECT: invention is aimed at improvement of operating reliability.

20 cl, 8 dwg

Wave power device // 2466294

FIELD: power engineering.

SUBSTANCE: wave power device comprises a floating body 1, which floats on sea, and an electric linear generator 2, comprising a stator 5 and a converter 8, making reciprocal movements along the central axis. The stator 5 may be fixed to the sea bottom, and the converter 8 is connected to the floating body 1 with the help of a connecting facility 3, 7. The generator 2 is enclosed into a water impermeable capsule 4, having an upper end wall with a hole, through which the connecting facility 7 stretches. The hole makes a seal 12, tightly adjacent to the connecting facility 7. The seal 12 is arranged in a flexible manner.

EFFECT: higher efficiency and reliability of a wave power device.

14 cl, 2 dwg

FIELD: power industry.

SUBSTANCE: sea wave energy converter includes upper float 1 located on the water surface, hydraulic cylinder 2 and electric generator with the rotor performing back-and-forth movement, and fixed stator. Rotor consists of constant magnets. Stator includes inductance coils. Hydraulic cylinder 2 is installed inside float 1 and represents a double-acting pump. Converter is equipped with hydraulic vibrator consisting of the cylinder filled with fluid, along the axis of which there arranged with possibility of back-and-forth movement is stepped shaft mechanically connected to generator rotor, and hydraulically through control distributing slide valve to pressure and drain chambers of hydraulic cylinder 2. Vibrator and generator is installed inside pipe 8 connecting hydraulic cylinder 2 to lower float 9, through depth control 12 connected to sea bottom. Float 9 buoyancy is higher than float 1 buoyancy.

EFFECT: higher efficiency of the proposed converter, which is achieved by conversion of low-frequency vibrations of float on sea wave surface to high-frequency vibrations of rotor of linear generator with respect to fixed magnetic conductor.

2 cl, 3 dwg

FIELD: power engineering.

SUBSTANCE: invention is designed for conversion of wave energy into electric energy. Proposed converter contains mechanically coupled fixed post, float chambers, frame, shaft, step-up gear and electric generator. Moreover, converter additionally contains relatively interacting second shaft, first and second gears and at least two motion converters. First and second gears are fixed on corresponding shafts and engage with each other. Each motion converter has vertical rod installed for vertical vibration on upper end of which first block is installed, and on lower end, third sprocket engaging with first and second float chambers. First and second overrunning clutches with sprockets are installed on shafts and they engage through first and second chains with third sprocket.

EFFECT: increased efficiency.

8 cl, 7 dwg

Wave power plant // 2316670

FIELD: power engineering.

SUBSTANCE: proposed plant is designed for converting energy of waves into electric energy. Proposed plant contains vertical support secured on bottom, rocking rod installed on support for rotation around axis of support, float secured on one of rod ends. Float is provided with intake bottom hole and outlet top hole, both provided with remote controlled valves, and electric generator. Upper end of support remains under water at any possible magnitudes of waves. Wave magnitude sensor is connected with remote controlled valves, float is connected to pneumatic line connected with pressure source, rocking rod is connected with pump which is connected by pipeline with accumulator of hydropotential energy on shore, electric generator is located on shore and is coupled with hydraulic turbine connected with accumulator of hydropotential energy. Plant changes to safe mode of operation owing to filling of float with water at excess of magnitudes waves determined by corresponding wave magnitude sensor.

EFFECT: provision of reliable and long operation.

9 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: device exploiting the wave energy incorporates a support with openings for water overflowing and a frame furnished with storm pumps, the extreme of which, incorporating discharge valves, communicate via a pipe with a receiver and curvilinear deflector connected to the pumps rods, the deflector being made in the form of a float with its concave surface facing the incoming wave, a balancer arranged opposite to deflector on the frame mounted to rotate about a horizontal axis laying between the balancer and deflector and a working pump fitted on the support with its rod coupled via transfer mechanism with the frame. The support front incorporates a wave killer made in the form of a prism, its apex directed towards the wave, and arranged to vertically move on along the support. The wave killer height makes half the height of the support. The medium storm pump has a branch pipe communicating via the pipe with the receiver and used a the deflector pusher. Storm pumps incorporate openings allowing the piston back free stroke.

EFFECT: simpler design and higher reliability.

1 dwg

FIELD: engineering industry.

SUBSTANCE: device can be used in water power engineering. Closed floating casing is installed on supports so that it can rotate. To inner surface of the casing attached are solenoids wherein located are ferromagnetic pins. Rod is located inside the casing and is connected with ferromagnetic pins. Casing's rotation axis is located at an angle to rod axis. Rod is installed on rollers and spring-loaded on both ends. Casing is equipped with current-collecting elements and vane propeller.

EFFECT: providing the specified value of travel and uniform speed of movement of ferromagnetic pins in solenoids at various wave amplitudes using wave advance energy.

2 dwg

Wave power plant // 2345244

FIELD: engines and pumps.

SUBSTANCE: invention is related to hydraulic engineering. Wave power plant comprises body placed on supports, solenoids fixed inside body and ferromagnetic rods installed in solenoids. Body is installed on shaft with the possibility of rotation. External surface of body is arranged as circular-cylindrical with blades in the form of double-threaded Archimedean screw and is equipped with current-collecting elements. Solenoids are arranged as annular, are oriented and fixed in planes that are perpendicular to shaft longitudinal axis. Ferromagnetic rods are arranged in the form of tore and are equipped with rollers. Length of body is accepted as equal to at least half of wave length.

EFFECT: provision of electric power generation stability.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention is related to float pump units in power systems based on float pumps, in which water motion is used for transportation of gas, liquid and their combinations from one place to another. Float pump comprises float having controlled volume, which is arranged with the possibility of return displacement under effect of waves, piston installed with the possibility of sliding inside piston cylinder and connected to float. Piston is arranged with the possibility of return displacement in the first direction and second direction under effect of float motion. Piston moves in the second direction for suction of working fluid medium into piston cylinder and moves in the first direction for removal of working medium from piston cylinder.

EFFECT: creation of environmentally safe, highly efficient, low cost devices for power generation.

27 cl, 30 dwg, 4 tbl

FIELD: power industry.

SUBSTANCE: wave electric power station intended for being installed on or in the sea or lake, for power generation includes floating construction and at least one floating body 1 which is moved vertically in relation to floating construction and is connected to the aforesaid construction through power transmission device. Floating construction includes a deck which is supported in fact with vertical supports. Supports have a pontoon functioning as damper and adapted for being arranged below water level. Deck, supports and pontoon comprise the space within which floating body 1 or bodies are located. In fact, pontoons have square section with oblique angles and with width which is more than height so that the floating construction is essentially fixed relative to still water level.

EFFECT: increasing output energy of wave electric power station.

17 cl, 17 dwg

FIELD: power engineering.

SUBSTANCE: wave power plant comprises vessel with electric generator installed in it, rotor connected to the latter with vertical axis of rotation, with horizontal blades. Between the latter vertical blades are installed with serial alternation of vertical and horizontal ones. Blades are installed in plane of undisturbed surface of water so that the latter is plane of symmetry for them.

EFFECT: increased efficiency of wave power plant operation by increase of share of wave kinetic energy transformed by plant into mechanical energy of rotary shaft.

4 dwg

FIELD: electricity.

SUBSTANCE: system includes a number of generator units (4a-6c) located in sea and a number of switchgear (1a-1c) located in sea. Each switchgear (1a-1c) is connected with a number of generator units (4a-6c). According to the invention, the system comprises a number of primary intermediate stations (17a-17c). It also includes at least one secondary intermediate station (19). Each primary intermediate station (17a-17c) is linked with a number of switchgears, and each secondary intermediate station (19) is connected with a number of primary intermediate stations (17a-17c). In addition, the secondary intermediate station is connected with on-land electrical network. The switching device (192) is available to ensure connection with different locations (193, 194, 195) of electrical network.

EFFECT: creation of system which is technically and economically compatible for supplying power to common electrical network.

28 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: wave electric station contains operating sections each represented as hollow straight four-sided V blocks, in cross section and in the form of rectangular. It is open from the bottom and linked with water medium. The above sections are installed lengthwise closely to each other. There are two open-end longitudinal windows in the top part of V-block, which form intake and pressure main lines and rectangular windows. The sections are located between vertical boards hung butt-to-butt inside two parallel lines punched into pile bottom.

EFFECT: increased power output from plant and simplified design.

3 cl, 9 dwg