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.
FIELD: power engineering.
SUBSTANCE: proposed plant is designed to convert energy of waves into electric energy. Proposed device contains pontoon, anchor chain and anchor, electric generator and drive including working and support sheaves over which flexible tie with weights o each end is passed. One of weights is installed for hanging over bottom and is made in form of floating anchor and the other is made in form of counterweight. Anchor chain is provided with tie-rod. Floating anchor and counterweight are made for adjustment of their mass. Floating anchor can be made in form of hollow platform in which row of chambers is made. Each chamber is sealed and designed for accommodating and/or ground, and /or air, and/or water. Counterweight is made in form of hollow float with sealed chamber in lower part which is designed for ground, and sealed air chamber is found in its upper part. Tie-rod is installed by one end on anchor chain and by other end, on pontoon. It is made flexible and can be adjusted in length.
EFFECT: provision of operation at any depth.
5 cl, 3 dwg
FIELD: power engineering.
SUBSTANCE: device is designed to supply stationary and mobile consumers. Proposed power generating station contains system of floats, kinematic system with overrunning clutches and flywheel coupled with electric generator. Floats are connected with dynamic anchor by prestressed elastic ties. Kinematic system has common multilink propeller shaft connected with body of each float by kinematic pair with gear ratio rising from link to link in direction from machine compartment and connected with flywheel either rigidly through torque limiting clutch, to shaft of flywheel speed stabilizer made in form of dynamic clutch is connected directly or through step-up gear. Rotor of electric generator is coupled with dynamic clutch.
EFFECT: provision of use of wave irrespective of amplitude of waves.
FIELD: electrical engineering.
SUBSTANCE: invention relates to electrical power engineering, particularly to electricity generating installations which convert energy of sea waves. The wave electric power station contains pivotally connected floats of a profiled floatation raft with a dynamic anchor, freewheel clutch and torque-limiting clutch. The electric power station is fitted with a self-adjusting bubble breaker, which includes a pneumatic blower driven by the former, starting from the head, floats of the profiled floatation raft, air pipe and an air-distribution pipe, placed on the arms of the dynamic anchor in the water space in front of the head float, and a device for automatic control of air release, for example in form of a stop valve activated by floats. Pivotal connections of the first floats are provided with pneumatic shock-absorbers, for example combined with pneumatic blowers. Drive wheels of these floats are linked with the latter through combination sleeves, which comprise freewheel clutch and torque-limiting clutch.
EFFECT: invention is aimed at designing a wave electric power station, capable of stable operation in any field operating conditions.
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 a floating body 1, a mechanical converter of sea waves energy made in the form of a horizontally installed carrier 5 at one end connected with a shaft 6 vertically and hingedly installed on the body, and the shaft is connected with a rotor of a power generator 4, the stator of which is connected with a floating body 1, and its other end is equipped with a mass 7. The power plant is equipped with additional floats 2, connected to the body 1 with the help of telescopic sliding mechanisms 3, as capable of adjusting total length of the floating part of the body 1 and floats 2 equal to wave half-length. The carrier 5 is equipped with a telescopic sliding mechanism of mass 7 displacement relative to the shaft 6 of the power generator 4 drive.
EFFECT: expanded range of optimally used waves, increased energy efficiency and capacity.
3 cl, 2 dwg
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
FIELD: power industry.
SUBSTANCE: wave electric power plant includes a floating hull made in the form of a cylinder, in the lower part of which there is a working chamber with inlet and outlet valves, a piston located inside the cylinder and fixed on a stock mechanically connected to a float, a circulation pipe located under the hull, a hydraulic turbine with a generator, which is interconnected with the working chamber. The electric power plant includes additional inlet and outlet valves. The circulation pipe is connected in series with one of the additional outlet valves and the hydraulic turbine, which is connected in the lower part to the additional inlet valve, and in the upper part to the generator.
EFFECT: easier offshore installation of a wave electric power plant; simpler design; improved reliability of a generator.
2 cl, 2 dwg
SUBSTANCE: invention relates to electricity and electrical machines, in particular, to electric current generators. Pendulum hydraulic wave electric current generator 1 comprises stator 2 and rotor, for which cores with coils and excitation system provide generation of electric current in free suspension of stator 2 in a floating vehicle. Floating vehicle is configured for cyclic oscillations by angle ±α during movement of water waves and performing same cyclic oscillations by generator 1 in transverse plane relative to vertical axis due to its constant orientation to centre of gravity of Earth. Axis 5 of suspension of stator 2 is aligned with axis of its free swinging and shifted relative to axis 5 of rotor rotation. Axes 5 and 7 are articulated via a system of gears.
EFFECT: invention is aimed at increasing rotation frequency and power of electric current generated by generator with free rotation of rotor relative to stator.
25 cl, 34 dwg
FIELD: power industry.
SUBSTANCE: floating coastal hydro-wave power plant that uses the energy of its body (1) rolling by waves and wind, contains cargoes (2) moving relative to the body (1), kinematically connected to the shafts of the electric generator rotors, to which end the cargo (2) bases are made along a circle arc and have the possibility of arc moving in the body (1). Cargo (2) is freely installed along and/or across the axis of the body (1) by its lateral cylindrical surfaces on parallel to them supporting rollers (5) with the possibility of the cargoes (2) stable orientation to the Earth's center in a vertical plane and their free rotation along the arch of their base when rolling the body (1) by waves and wind. The support rollers (5) are kinematically connected with the rotors and stators of the electric generators.
EFFECT: providing effective power removal with a wide range of parameters and wave energy.
25 cl, 22 dwg
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
FIELD: engines and pumps.
SUBSTANCE: invention relates to the plants exploiting the rough sea energy. The wave power generation plant includes a ship with a wave compressor using roughness energy to produce compressed air, working chambers arranged along the ship board working chambers with inlet and outlet openings submerged into water and converting the compressed air power of the turbine with electric generators. With the wave out coming, the chambers communicate during suction stage via inlet valve with the low-pressure manifold open to atmosphere and during compression stage, with the wave in coming, they communicate via outlet valves, with the high-pressure manifold. The ship features the sizes and the number of chambers allowing simultaneous exploiting of several waves. The chambers are arranged stepwise along the depth. Every subsequent stage of chambers is located deeper than the previous one. The high-pressure manifold of the previous stage makes a low-pressure manifold of the subsequent stage. The high-pressure manifold has in its lower part a drain shafts with outlet valves. The ship incorporates also a system of ballast compartments to accommodate a wave compressor on the ship water-line at the level of the first stage working chambers. At the stern and bow the ship engines are mounted.
EFFECT: higher efficiency; higher output power.
FIELD: machine building.
SUBSTANCE: invention relates to power engineering and can be used for transforming the river stream and tides power into electric DC or AC energy. The proposed floating electric power station comprises a water craft with electrical generator mounted thereon and connected to the turbine and a confuser pipeline arranged in water stream and narrowing along the said stream. The said confuser pipeline is arranged horizontally. Note that the confuser pipeline narrower end is provided with a horizontal diffuser pipeline with an intake entrance accommodating an air nozzle arranged coaxially with the said entrance. The nozzle inlet is connected, via an air duct, to the pipeline with its shape changing from curvilinear into vertical. The aforesaid air duct is hinged to the air confuser pipeline. The latter accommodates the turbine mounted at its outlet. The air duct is hinged to turn relative to the said air confuser pipeline and to allow mounting confuser pipeline together with diffuser pipeline along the water stream.
EFFECT: higher profitability and reliability.
5 cl, 7 dwg
FIELD: machine building.
SUBSTANCE: proposed power generation plant exploits the power of sea wave and tides. The plant comprises a hollow cylindrical housing with its bottom open. It communicates with seawater and is anchored to sea bottom. The said housing features a narrowing forming a smaller cylinder. The casing is attached to the aforesaid cylinder. The aforesaid casing houses an impeller driven by air sucked in/out from the housing inner space via air ducts formed by the aforesaid casing and non-return valves mounted inside the upper small cylinder, the air force being directly dependent upon the water level caused by the running wave.
EFFECT: simple low-cost high-efficiency power generation unit to be mounted at whatever sea- or-ocean coast line.
4 cl, 22 dwg
FIELD: machine building.
SUBSTANCE: invention relates to water-power engineering and is designed to be used for producing electric power by exploiting the sea or lake wave energy. The wave power generation plant comprises a vacuum-generation ejector device and an air turbine mounted in the flow passage. The said air turbine is connected to the electrical generator. The said ejector device is fixed underwater below the float with air accumulator and represents a vertically arranged confuser-diffuser passage arranged in the minimum flow passage section communicating via, at least, one check valve with the float chamber communicating via pipeline with the flow passage chamber outlet.
EFFECT: higher reliability and output thanks to possibility of vacuum generation irrespective of reciprocation of confuser-diffuser passage.
3 cl, 1 dwg