RU2810864C1 - Device for converting kinetic energy of underwater sea currents into electricity - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: devices for converting the kinetic energy of underwater sea currents into electricity. The device contains an electrical energy generator, with which, through a transmission device, parachute sails inserted into the flow in the direction of its movement are connected, main and auxiliary wheels, between which a cable passing through the parachute sails is stretched. The cable has clamps rigidly attached to it at equal distances, to which parachute sails are attached on one side in the direction of the current and ensuring movement of the cable. The wheels are made in the form of a rim with a longitudinal slot designed for temporary retraction, rotation inside the rim and exit of the parachute sail from the rim. The wheels are installed at a distance that allows the parachute sails to deploy, pull and roll-up. Each parachute sail contains an opening degree limiter. The longitudinal slot of the rim is made to extend along its entire outer circumference. The auxiliary wheel contains stabilizers for its position. The wheels are designed to be immersed in a water current with a rim depth of at least three times the diameter of the folded domes. The transmission device is made in the form of a trunk or flexible transmission.

EFFECT: simplifying the design of the device, increasing its mobility and durability.

11 cl, 18 dwg

Description

The invention relates to the field of energy and can be used in hydropower plants to generate electricity.

Obtaining energy from renewable energy sources as its consumption by mankind increases is becoming an increasingly relevant area of research in recent decades. The rapid development of wind and solar energy has made it possible to increase electricity generating capacity, but its catastrophic dependence on weather conditions makes it unsustainable. In this work, it is proposed to use sea currents to generate electricity, since they:

- Not involved in global energy circulation.

- They have good stability.

- High energy intensity, because carry huge volumes of water.

- Present in all parts of the world and seas.

Currently, there are attempts to use sea currents and sea tides to generate electrical energy.

The known energy recovery device (1) for generating electrical energy has a profiled wing (2) located along the flow of liquid (15), for example, air or water. The elastic return unit, that is, the spring (6), elastically returns the aileron (4) to the position in which the aileron protrudes from the extension of the wing. Support and guide units, for example, support (7) and guide bearing (9), support and guide the wing in the forward direction to create a transverse oscillatory movement of the wing in the direction of fluid circulation. The wing support unit is connected to an energy conversion unit, which consists of a connecting rod (10) and a crankshaft (12) (FR 2964160 A1, F03B17/00, 03/02/2012).

The specified device can be considered for working with sea currents only in an inverted form - the wing is in the current flow, and the shaft is on the surface of the barge.

The disadvantages of this technical solution are:

- The water flow is much slower and more powerful (with the same wing surface) compared to the air flow. Therefore, it will be extremely difficult to cause oscillatory movements of the wing.

- The support (7), when turned upside down, will become a bar that should rotate the wheel (12). However, the rod itself at such depths of the sea current will weigh about 400 kg, so the wing must develop greater power to form a constant vertical rise and descent of the rod. Stable oscillation of high power in an unstable flow is practically impossible. A significant part of the instability of the flow comes from the movement of the barge itself on the surface of the water, because this movement destroys the supposed periodic oscillations of the wing.

A sea current hydroelectric power station is known, containing surface platforms, horizontal and vertical power cables with buoys attached to the platforms, loads installed on the bottom and attached to the buoys, generator units attached to the cables, electricity converters, water decomposers into hydrogen and oxygen, and a control system , wherein the generator blocks include sealed electricity generators, blade elements and stabilizers, the generator blocks are made separated on the cables, vertical cables are attached to the horizontal power cables, and the electricity converter is connected with its outputs to electricity consumers, and the water decomposer outputs are connected to a hydrogen and oxygen liquefaction device which are connected to the pipeline and consumers of hydrogen and oxygen, for example the tanks of a transport ship, characterized in that the sealed electricity generator is attached to the front fairing attached to the stabilizer, the blade element, made of a spiral, is attached to the shaft of the electricity generator and attached to the rear fairing, and the fairing and the spiral element are made with cavities that provide a given buoyancy, on the cables the generator blocks are separated by power cylinders, the vertical cables ensure the movement of repair elevators, and the generator block is connected to information rectifiers and to power rectifiers, the outputs of which are combined and connected to an electricity converter and a decomposer water into hydrogen and oxygen, while the unit for converting electricity into hydrogen and oxygen is installed at the bottom, or on a surface platform, or on the ground, and the control system contains a digital processor, a data input/output device and is connected to information sensors and drives of the system, and also for brake drives of generator units (RU2405965 C1, F03B 13/10, 12/10/2010).

The disadvantages of this technical solution are: The average depth of sea currents is 250-300 meters. The usual width is several tens of kilometers. Hence the consequence is that high water pressure with the presence of salt microcrystals will interfere with and block the operation of all rotating parts of the turbines. It is extremely difficult and expensive to seal a generator with a rotating shaft at such high pressure. Moreover, using elevators with people to repair installations is almost impossible. A diver needs serious special training with special equipment to dive to 80 meters, usually available to the military. Until recently, 300 meters was the operating limit of submarines, not elevators. Repairing the installation is extremely difficult. The decomposition of water into hydrogen and oxygen, liquefaction, and transportation still remain extremely difficult technologically to implement.

A known system (1) for generating electricity mainly through the use of sea currents, which contains a body (4) of rotation having a front input side (2) and a rear output side (3), at least one transmission element (6), connecting the input side (2) with the generator (5) and extending in the direction of the input side from the essentially cylindrical narrow section (7), at least one section (8, 9) tapering in the form of a cone and/or bulb, wherein the narrow section has turbine blades (10) located at intervals from each other along the circumference, which are configured to provide rotation of the rotating body, the free front end of which is attached to the transmission element (6) and serves to transmit rotational motion to the generator (5), and the inner surface of the outer wall (17) of the rotation body has blades (18) located around the circumference and designed to eliminate friction created by the liquid (19) located inside the rotation body (RU2287717 C2, F03B 13/00, 11/20/2006).

The proposed system is interesting for surface currents, but for ordinary sea currents, which have an average depth of 250-300 meters, it has a number of disadvantages:

- In a surface current (depth up to 40 meters), all holes between the blades will be clogged with algae and marine debris.

- For depths of 350 meters, rod 6 must be strong, and therefore metal, to obtain high torque. The entire rotating body of structure 4 must be just as strong. By analogy with a drilling rig, when transferring rotational energy from the installation to a rotating drill, the strength of the barrel must withstand a given rotating moment with a margin and not twist or deform. With such a depth of 350 meters, a diameter of rod 6 of about 80 mm and a power of 100 kW (m), the weight of the structure will be about 1000 kg, and it will take a vertical position and stop rotating. The average speed of the sea current is about 0.5 m/sec. To increase its lifting force, it is necessary to increase the area, and this automatically increases its weight and the weight of the bar 6.

- The underwater location of the generator and energy accumulator at a depth below the current will lead to significant costs - frequent and problematic lifting of the entire structure for maintenance. Pressure more than 30 atm. Makes it extremely difficult to construct and maintain associated bottom devices, and the depths will be even greater, because everything is built downstream.

A device for generating electricity from underwater sea currents is known, containing a receiving non-metallic pipeline, magnets, metal electrodes located on the pipeline, located in the pipeline, characterized in that the device is equipped with electromagnets installed on the pipeline, the magnets are horseshoe-shaped, while the receiving pipeline is divided into two branches , in which metal electrodes are installed, and the insulated electrodes are brought to land and connected to the inverter (RU 2735039 C1, F03B 13/00, 10/27/2020).

The method is interesting, but it has its drawbacks and, first of all, it is low power. The potential accumulated on the electrodes, as a result of ion separation, is removed through a conductive wire and supplied to the surface. To obtain more energy, sufficient for at least the domestic needs of several houses, it will be necessary to build a network of pipelines with the installation of powerful magnets. A powerful magnetic field can be obtained using electricity. The use of neodymium magnets (the most powerful and do not consume energy) is not enough.

A power plant for converting the energy of air or water flows is known, containing a power take-off shaft, with which a wing or aerodynamic profile inserted into the flow in the direction of its movement is kinematically connected through a moving axis, characterized in that the power take-off shaft is made in the form of a crankshaft, and the wing or the airfoil is connected to this crankshaft by a sling, and directly at the wing the sling has auxiliary rear and front slings (bridles) with the function of limiting the angle of attack, and also contains a device for controlling the angle of attack from the minimum to the maximum level, made with the ability to move the spring-loaded axis relative to the center of application of the aerodynamic forces depending on the direction of movement of the crankshaft and, as a consequence, on the pressure of the air or water medium (RU 2492355 C1, F03D 5/06, 09/10/2013).

The disadvantages of this technical solution are:

- The device will operate in a stable laminar flow, which practically does not exist in nature. It may occur briefly. In a turbulent flow, everything will be swirled by the flow and fall to the ground.

- In the aquatic environment, the flow is more stable, but the current flows deep, and not, as in the drawing, superficial. With a deep current, essentially 2 flows arise: a standing (slow) upper one and a faster one - the sea current itself. In faster flows, disturbances in the flow periodically arise due to the unevenness of the bottom structure (seamounts, gorges, etc.); intersections and mixing with other, weaker flows; movements of schools of fish. The wing is very sensitive to the direction and strength of the flow; it can easily lose cable tension and “fall into a tailspin.” The cable tension must always be stable.

- Vibrations of the barge itself and the buoy on the water surface will introduce disturbances sufficient to completely destabilize the operation of the device.

- Additional energy loss in the second half of the crankshaft revolution, which worsens the energy characteristics of the device.

The closest analogue to the claimed invention is a device for converting the kinetic energy of air and water flows. The invention relates to a device that produces electrical energy using a reciprocating parachute system. It contains a lever, at each end of which there are two bladed wheels, along the end of which a tensioned cable passes. When the cable is in action, it gives the wheels a rotating motion. Several parachutes are attached to this cable. These parachutes are inflated, then driven by a cable, which in turn drives the wheels, then they perform a rotational motion, which is transmitted via a timing belt to the high voltage generators that must produce the power. (FR 2736101 A1, 01/03/1997, F03D3/02)

The main disadvantages of this invention are:

A parachute that will not move in the “inflated state” the way the author drew it. The parachute will twist into a tube, the canopy itself and the lines because:

- There is always turbulence in the water flow, and the soft fabric of the dome (without hard guides) under the influence of small flows of water will easily wrinkle, because the weight of the water significantly exceeds the weight of the dome;

- There is no hole in the center of the dome, which should allow water flow and stabilize the position of the dome. Inside the dome there will be increased water pressure, and it will “flow” over the edge of the dome and precisely through the edge that turns out to be a little shorter (like from a filled cup on a train) and this flow of flow flowing out of the dome will spin it.

- These factors will simultaneously act on all parachutes and will not allow them to deploy.

The passage of a lump of a dome (and a folded one too) through the slot of the crosspiece is impossible, because the slot will hook either the canopy itself or its lines. The protruding sharp edges of the crosspiece fig. 5 will hook and, at best, like a knitting needle, they will “tie” additional knots. And if algae gets into the center of the dome, it will completely stop the movement of the cable.

The crosspieces are located on a rigid base and keep the cable taut. The force with which it will be pulled will be quite high, since the chaotic transverse oscillatory movements of the sails filled with water will lead to sharp transverse jerks, which will inevitably lead to the cable jumping off the crosspiece. In addition, the transverse vibrations of the tensioned cable will quickly fray it due to its vibrations in the connector of the crosspiece Fig. 5.

The number of sails is limited, since the force F = m x a of the transverse jerk is proportional to the mass (m) and acceleration (a) and even for one parachute with a radius R, for example, 2 meters, the mass of the parachute hemisphere will be -

m = gx V = g x (2/3x (3.14 x R ³ ) =

= 1000 x 0.66 x 3.14 x 2 ³ = 16.6 tons

where g is the density of water equal to 1000 kg/m3.,

x – multiplication sign,

a – acceleration (occurs during any turbulence and increases force F).

The simultaneous movement of several parachutes can not only easily tear the cable from the crosspiece fork, fray the cable, but also bend the transmission shafts and the crosspiece blades themselves.

Placing an electric generator and transmissions underwater that increase the gear ratio to supply torque to the generator is significantly more complicated, leads to higher maintenance costs and a shorter service life of the device, since sea water is an aggressive environment.

The technical problem to which the claimed invention is aimed is the creation of a device for converting the kinetic energy of underwater sea currents into electricity, in which all complex technical elements, such as a generator, bearings, gearboxes, closed cavities with rubbing parts, electrical connectors, were removed outside the aggressive aquatic environment and which does not have the above disadvantages.

The technical result of the claimed invention is to simplify the design of a device for converting the kinetic energy of underwater sea currents into electricity and increase its mobility and durability by eliminating corrosion in its main elements, especially with rubbing surfaces.

The technical result of the claimed invention is achieved by the fact that a device for converting the kinetic energy of underwater sea currents into electricity, containing an electrical energy generator, with which, through a transmission device, aerodynamic profiles introduced into the flow in the direction of its movement are connected, two wheels: the main and auxiliary, between which a cable on which clamps rigidly attached to it are installed at equal distances, passing through aerodynamic profiles made in the form of parachute sails attached to the said clamps on one side in the direction of the sea current and ensuring movement of the cable, the wheels are made in the form of a rim with a longitudinal slot , designed for temporary retraction, scrolling inside the rim and exiting the rim of the parachute sail, while the main and auxiliary wheels are installed at a distance allowing the parachute sails to carry out movement, including: deployment, traction and folding, according to the invention, each parachute sail contains a limiter the degree of opening when the flow moves, while the longitudinal slot of the rim is made to extend along its entire outer circumference, the auxiliary wheel contains stabilizers of its position during movement, and the mentioned wheels are made with the ability to be immersed in the water flow with a rim depth of at least three times the diameter of the folded domes, and the transmission device is made in the form of a barrel or flexible transmission.

In addition, the cable is made with double-sided teeth or circular teeth.

In addition, each parachute sail is made of a single piece of durable fabric with sewn-in flexible longitudinal guides and is attached to the mentioned clamps with slings.

In addition, convex metal bumps are made on the inner surface of the rim slot to improve the grip of the cable on the rim.

In addition, each parachute sail is made of metal or plastic petals that have a longitudinal bend and are offset inward, one at a time.

In addition, in the upper part of each parachute sail there is a through hole to stabilize its position relative to the cable with the possibility of covering it with a lattice, and a conical ring is located inside each parachute sail.

In addition, the degree of opening limiters are made in the form of elastic rings or slings made of durable elastic material.

In addition, at least one emergency ball is installed on the cable, configured to lift the cable to the surface.

In addition, the stabilizers are made horizontally in the form of a gas-filled ball and/or a parachute sail.

In addition, the stabilizers are made vertically in the form of a buoy.

In addition, the flexible transmission is a timing belt or chain transmission.

The invention is illustrated by drawings, where:

In fig. Figure 1 shows a general diagram of a device for converting the kinetic energy of underwater sea currents into electricity.

In fig. Figure 2 shows a section of the wheel rim profile.

In fig. Figure 3 shows the “Sails” cone.

In fig. Figure 4 shows a diagram of the transmission of torque to a vertical shaft.

In fig. Figure 5 shows a barge with a generator with a double shaft thrust.

In fig. 6 diagram of the placement option for stabilizer 23.

In fig. Figure 7 shows a vertical stabilizer for vertical and horizontal placement of the auxiliary wheel, viewed across the stream.

In fig. 8 shows torque transmission options.

In fig. Figure 9 shows a fragment of a map with a current.

In fig. 10 shows a fragment of cable 3 and circular teeth 28.

In fig. Figure 11 shows a fragment of cable 3 with double-sided teeth 27.

In fig. Figure 12 shows the “Petal” cone, the shift of the petals during collection and examples of petals.

In fig. 13-14 show examples of petals.

In fig. Figure 15 shows the “Petal” cone, side view.

In fig. Figure 16 shows the limiter, view from point A.

In fig. 17 shows the “Petal” cone with slings with a bow clamp on a cable.

Figure 18 shows the “Petal” cone with a limiter and a nose clip.

In fig. Figure 1 shows a general diagram of the proposed underwater device. It includes two wheels - the main 1 and the auxiliary 2. A cable with circular teeth 28 or a gear cable 27 with double-sided teeth is stretched between the wheels, Fig. 11, in what follows we will call it a cable. It depends on the loads, the size of the structure, the power and depth of the flow, etc. On the cable 3, clamps 4 are installed at an equal distance from each other, rigidly attached to the cable. The cable 3 passes through a fabric “parachute sail” 5, made of a single piece of durable fabric, for example, parachute fabric reinforced with Kevlar or carbon fiber thread, synthetic fabrics, polyacrylic, polyester, in the future we will say “Sail”, which is attached with slings 7 to the clamps 4. All “Sails” are attached on one side of the clamps - in the direction of the flow 11. In the upper part of the “Sails”, as in a conventional parachute, a through hole 6 is made, which stabilizes the position of the “Sails” relative to the cable by directing part of the flow water through this hole 6. In weak currents, “Sails” operate without a through hole. Flexible longitudinal guides, like those of an umbrella, of varying lengths are sewn into “Sails”. In fig. 15, 17-18 show examples of “Sails”, consisting of petals (by analogy with the Chamomile flower), which can be made from various light and durable materials, such as aluminum, carbon fiber and other durable synthetic compounds. The petals have a longitudinal bend for strength and, as shown in Fig. 12 (for the example of 6 petals), three of them, after one, are slightly shifted inward and have small lateral antennae (not shown). This is done so that the inner petals always go under the outer petals. There may be 4, 8 or more petal “Sail” designs. In fig. 15, 17-18 show the bow clamps 29 “Sails” to the cable, and the drop-down petals are attached to them. Elastic rings 30 or slings made of durable elastic material, for example, synthetic fabrics, polyacrylic, polyester, act as a limiter on the degree of opening of the petals (stop) during the movement of water flow. The rings 30 are made from a flexible and durable material such as carbon fiber. When the petals are fully opened, there may be gaps between them through which water will pass, creating a turbulent flow, but this will not interfere with the operation of the device. When moving in the opposite direction - from the auxiliary ring to the main one, the petals easily fold under the pressure of the oncoming water current.

For simplicity, we will call the entire system presented in Fig. “Ring”. 1 closed circuit of the “Sails” movement. Wheels 1 and 2 resemble the bicycle rim of Fig. 2, into which, when folded, “Sail” 12 enters and the already folded “Sail” 13 comes out. The distance between the wheels can be divided into 3 unequal parts, corresponding to the stages of movement of the “Sails”: unfolding 8, thrust 9, folding 10. Inside “ Sails" see fig. 3 there is a conical ring 16, and the hole 6 is blocked by a grid 17 that allows water to pass freely, but retains the retainer 4.

In the section of the rim Fig. Figure 2 shows the approximate size of the cross-section of the wheel rim and the folded “Sail” 5. A longitudinal slot 15 is shown, running along the entire outer circumference of the wheel rim and intended for temporarily retracting the “Sail”, scrolling inside the rim and exiting the “Sail” from the rim. Cable 3 and rim depth d are shown. The inner side of the rim has protrusions corresponding to the annular teeth of the belt - cable, which limit the slipping of the cable in the rim.

The increased depth of the rim d provides the power reserve of the cable 3 inside the rim of the auxiliary wheel 2, which is necessary when lowering the “Ring” under water, when the current does not yet carry it along with it. Since the descent of the “Ring” begins with the descent of the weighted auxiliary wheel 2, its gravity provides the necessary tension and does not allow the cable to jump out of the rim.

During the immersion of the “Ring”, all the domes of the “Sails” are assembled and tightly tied to cable 3 with a water-soluble rope, for example, paper. Water-soluble balls are installed on the cable inside the rim of both rings at the entry and exit points of the cable, which temporarily fix the cable inside the rim and prevent it from jumping out of gear when the device is immersed in water. Water-soluble balls can be made, for example, from water-soluble glue and finely chopped paper. The disintegration time of such a mixture depends on the proportions of glue and paper (sawdust) and the size of the pieces of paper (sawdust). The dissolution time of temporary fastenings is calculated based on the time of delivery of the “Ring” to a given depth during. Next, the water will begin to dissolve these fasteners and weaken them, and the pressure of the water current will unfurl the “Sails” and release the “Ring” from engagement and the device will work.

To prevent the loss of the cable with the “Sails” when the cable slips from the rings and the “Ring” sinks to depth, a small emergency ball/balls are installed on the cable. The shell of the ball 24, when the falling cable reaches a given depth (for example, 500 meters) with increasing water pressure, bursts, the radio beacon turns on, and the internal elastic shell is inflated with gas, which lifts the cable with “Sails” to the surface (analogous to an airbag on a car).

In fig. 4 shows a diagram of the transmission of torque from the movement of the “Sails” from the main wheel 1 through the shaft 18 upward to the barge 19. On the barge of FIG. 5 shows a gearbox 20 and an electric power generator 21. The barrel is lowered from the side of the barge into an expanded deck opening (like a catamaran). This allows the barrel to be lowered and raised, and also allows the barrel to swing outward without causing damage to the deck.

In fig. 8 shows an option for transmitting torque to a barge 19 through two independent alternative flexible transmission options: toothed belts 27 or a chain drive at a shallow (up to 7 meters) flow depth. Torque is transmitted from an additional weighted wheel - flywheel 26 to shaft 31, located on the deck of barge 19. Flywheel 26 sits rigidly on the same shaft with the main wheel 1. The increased weight of the flywheel allows solving two problems: providing the necessary cable tension and smoothing out speed fluctuations rotation of the main wheel 1. In Fig. Figure 8 shows two emergency balloons 24, designed for emergency lifting of cable 3 with “Sails” when it comes off and falls deep into the sea.

Stabilization system. In fig. Figure 5 shows a general diagram of the entire device with the transmission of torque through the barrel 18. During the movement of the “Ring”, the auxiliary wheel 2, depending on the power and level of flow turbulence, can move in the flow space, which can destabilize and disrupt the operation of the “Ring”. Stabilizing the position of auxiliary wheel 2 in the “Ring” will ensure stable and uniform operation of the device. Several stabilization options are offered, which are selected depending on the depth, power and size of the flow, energy requirements for energy removal, physical and mechanical characteristics of the designed device. Let's consider them sequentially:

Horizontally. In fig. 5-6 show two “Rings” with the installation of stabilizers 23 on the auxiliary wheel 2 in the first version of the gas-filled ball and in the second case “Sails”. Stabilizers 23 additionally pull the auxiliary wheel 2 along the flow.

Vertically. In fig. 7 shows the vertical support 25 by the buoy of the vertically located and horizontally located auxiliary wheel 2.

Both options for horizontal and vertical stabilization are not alternatives and can be combined with each other in various ways.

How it works

The sea current 11 fills with water under pressure the domes of the “Sails” 5, attached to the cable 3 in the upper part of the “Ring” of Fig. 1 and moves them along the current. The moving “Sails” pull the cable 3, and this, in turn, leads to rotation of the main wheel 1. This traction depends on the total area of the “Sails” filled with water and the speed of the current 11. When the next “Sail” approaches the auxiliary wheel 2, it The fabric dome follows the cable into the slot 15 of the wheel rim of Fig. 2, which limits its size on three sides and compresses the dome. When it hits the rim, the movement of the “Sail” dome slows down relative to the speed of movement of the cable 3. The “Sail” latch 4 is tightened by a cable into the wheel rim, enters the conical ring 16 and stops at the grid 17, which limits the further movement of the latch 4. Next is the latch 4, which moves after the cable along the rim, pulling its folded “Sail” 13 with it. When leaving the auxiliary wheel 2, the folded “Sail” 13 moves after the cable 3, which is pulled by the latch 4, then the latch 4 is shown, located inside the folded “Sail” » 13 is designated by the number 14. Against the current 11, the “Sail” will move in a forced folded form, because current 11 does not allow the fabric dome to unfold. When the folded “Sail” approaches the main wheel 1, it enters the rim of the main wheel 1 and moves along it following the latch 14.

When leaving the main wheel 1, the water of the current 11 forcibly unfolds the dome of the “Sail” and pushes it along the cable (to the left in Fig. 1). Moving with the flow, the “Sail” pulls cable 3 through fixed slings. The thrust of all “Sails” filled with water is added up and the main wheel 1 is rotated through cable 3.

In fig. Figure 4 shows a general layout of the device when transmitting torque from the main wheel 1 to the vertical shaft 18. In this case, the rotation of the plane of movement of the cable 3 by 90 degrees is shown from the vertical plane of rotation of the auxiliary wheel 2 to the horizontal plane of rotation of the main wheel 1. On the axis of rotation of the main wheel 1, a vertical shaft 18 is planted, which goes from the main wheel 1 to the deck of the barge FIG. 5. This allows torque to be transmitted from the main wheel 1 to the barrel 18 and then through the gearbox 20 to the generator 21. Also in FIG. 5-6 show two options for installing horizontal stabilizers 23 and one vertical stabilizer 22 on the auxiliary wheel 2. A scheme with two horizontal planes of rotation of the wheels – main 1 and auxiliary 2 – is possible. In this case, the auxiliary wheel must have vertical stabilization Fig. 7.

In fig. Figure 9 shows a diagram of the location of the main sea currents. It shows that their number is large and they are located in all parts of the world. In many places they flow close to land, since the shore acts as a limiter on the movement of water, which makes their use here effective.

Thus, the use of parachute sails (canopies) attached to a cable, secured with slings at fixed points on the cable to create a traction force in the underwater current, transmitted to the cable and the impeller, from which the torque is transmitted to the surface to the generator to generate electricity; the use of wheels immersed in a water current with a hollow rim with a rim depth of at least three times the diameter of the folded domes, with a ring connection of the wheels with a cable passed inside the rim of both rings, which allows you to pull the dome inside the rim, pull it inside the rim and release the folded dome at the exit, in this case, the inner sides of the rim have protrusions corresponding to the annular teeth of the belt-cable; the use of a system for stabilizing the position of the auxiliary wheel in the flow space, as well as placing in the rim a temporary fastening of a cable and “Sail” domes that will soak in the water for lowering the device under water in the current and its deployment; emergency lifting of a cable with “Sails” when it comes off and falls deep into the sea within the framework of the claimed invention has the following advantages:

1. Simplicity, mobility and low cost of design.

2. Uses sea currents, of which there are many, and they are very powerful.

3. The extracted energy depends on the total area of all “Sails”, the strength of the domes and cable, the depth and power of the current.

Claims (11)

1. A device for converting the kinetic energy of underwater sea currents into electricity, containing an electrical energy generator, with which, through a transmission device, aerodynamic profiles introduced into the flow in the direction of its movement are connected, two wheels: the main and auxiliary, between which a cable is stretched, on which At a distance, clamps rigidly attached to it are installed, passing through aerodynamic profiles made in the form of parachute sails, attached to the said clamps on one side in the direction of the sea current and ensuring the movement of the cable, the wheels are made in the form of a rim with a longitudinal slot intended for temporary retraction, scrolling inside the rim and exiting the parachute sail from the rim, while the main and auxiliary wheels are installed at a distance allowing the parachute sails to move, including: deployment, traction and folding, characterized in that each parachute sail contains a limiter on the degree of opening when moving flow, while the longitudinal slot of the rim is made passing along its entire outer circumference, the auxiliary wheel contains stabilizers of its position during movement, and the mentioned wheels are made with the possibility of their immersion in the water flow with a rim depth of at least three times the diameter of the folded domes, and the transfer device is made in the form of a barrel or flexible transmission. 2. The device according to claim 1, characterized in that the cable is made with double-sided teeth or with circular teeth. 3. The device according to claim 1, characterized in that each parachute sail is made of a single piece of durable fabric with sewn-in flexible longitudinal guides and is attached to the mentioned clamps with slings. 4. The device according to claim 1, characterized in that convex metal bumps are made on the inner surface of the rim slot to improve the adhesion of the cable to the rim. 5. The device according to claim 3, characterized in that each parachute sail is made of metal or plastic petals that have a longitudinal bend and are located offset inward through one. 6. The device according to claim 1, characterized in that in the upper part of each parachute sail there is a through hole to stabilize its position relative to the cable with the possibility of covering it with a grid, and a conical ring is located inside each parachute sail. 7. The device according to claim 1, characterized in that the degree of opening limiters are made in the form of elastic rings or slings made of durable elastic material. 8. The device according to claim 1, characterized in that at least one emergency ball is installed on the cable, configured to lift the cable to the surface. 9. The device according to claim 1, characterized in that the stabilizers are made horizontally in the form of a gas-filled ball and/or a parachute sail. 10. The device according to claim 1, characterized in that the stabilizers are made vertically in the form of a buoy. 11. The device according to claim 1, characterized in that the flexible transmission is a toothed belt or chain transmission.