Generator set actuated by water flux

FIELD: power industry.

SUBSTANCE: generator set for power generation by water movement, particularly tidal movement, comprises long basically terete buoyant cylinder 1, supporting facilities coming from its bottom, and rotor 2 connected with generator with blades 3. Rotor 2 through supporting facilities 5, 6 is connected to cylinder 1 via pivot joint 7 on keel side 8 of cylinder 1. It is possible to turn from the first fold position directly under cylinder 1 into the second unfolded position directed to tide fluxes, therefore when operating the set, water movement through blades 3 of rotor 2 rotates rotor 2, ensuring that generator produces power.

EFFECT: preventing from complications in maintenance, repair works and handling.

10 cl, 3 dwg

 

The present invention relates to generating plants to obtain energy from the movement of water, in particular from tides or rivers. The invention in particular relates to a floating means.

In recent years, developed the so-called renewable energy sources, such as wind or wave power, but wind farms are very large, and their work is, of course, depends on the availability of wind. Wave power stations are difficult to implement for several reasons, among which are the high cost of equipment and the need to withstand exposure to extremely powerful waves during storms.

On the other hand, the tides are a guaranteed source of energy, based on the movement of water. In recent years, a large number of tidal power plants, as for example, in patent documents WO 88/04632, US 3986787, DE 2648318 and US 3922012.

The known installation contain very bulky structural elements such as Foundation, fans or turbines, which are driven through them the water flow of the tides. Such installation can be floating, as described in WO 88/04632 or submerged on the seabed, as described in US 3922012.

Known installations inherent to their inherent disadvantages, namely: the large size and complexity of the design and, which is difficult to manufacture, and which is susceptible to damage due to low resistance to conditions of use at sea; the complexity of maintenance and repair without the use of expensive tools or mounting hardware; and the need to be "nailed" piles in the seabed.

Of bids US 2002/0158472 known generator for generating energy from the movement of water, in particular from sea currents, containing elongated, essentially circular in cross-section of the floating cylinder extending from its bottom supporting means and two connected to the generator rotor with blades.

In the known installation of the support means in the form of spacers are rigidly connected to the balloon and gondola, resulting in a difficulty in maintenance and repair, because it requires the use of large and expensive barges and cranes. In addition, difficulty maneuvering, such as when the delivery of the device to the port.

The present invention is to eliminate or minimize one or more of the above-noted disadvantages.

This problem is solved in the generating set to generate energy from water movement, in particular tidal movement, containing elongated, essentially circular in cross-section of the floating cylinder extending from its bottom supports the s means and coupled to the generator rotor with blades, thus according to the invention the rotor via the supporting means attached to the container by a hinge on the keel of the cylinder can be rotated from the first folded position directly under the balloon in the second unfolded position, facing in the direction of tidal flow, so that during operation of the movement of water through the blades of the rotor rotates the rotor, ensuring the production of energy by the generator.

Generator set in accordance with the present invention implements a simple and effective means of energy production at the site of action of the tides. Swivel rotors with the keel part of the container provides the ability to move them from the first folded position directly under the balloon, the second unfolded position, aimed in the direction of the tidal current. When installing the rotor blade in the folded position significantly improved maneuverability and the ability to serve as an elongated cylindrical container can be inverted for maintenance of rotor blades and the generator without the use of large and expensive barges and cranes. Moreover, the ability to lay rotor blades directly under the balloon allows delivery of the device to the port.

Basically circular in cross-section shape of the container is what I essential feature of the present invention for several reasons, including due to the fact that cylindrical tank is very durable and has a streamlined design that increases its robustness in difficult weather conditions. In addition, the cylindrical container has a minimum impedance loads and hydrodynamic resistance (braking). This again increases its survivability.

Preferably the apparatus comprises two rotors, each of which is mounted on its supporting means. These two rotors are made with the possibility of counter-rotation.

It is desirable that in the unfolded position of the rotor blades or rotors were installed on the most close to the floating cylinder, i.e. in the area of maximum tidal flow under the surface of the water by floats installation.

Mainly on each rotor has two rotor blades, which are specified in the folded or retracted position parallel to the longitudinal axis of the cylinder. This design is easily managed, particularly when towing.

Since installation is not completely submerged in water, much of it is on the surface of the water and, therefore, will be visible to the sailors. It is desirable to equip the installation of warning lights or warning device, warning sailors of her presence.

The installation completed freedoms is floating about, so it does not depend on the vertical tidal movement.

The plant is equipped with means, such as mooring means attached to secure to the bottom of the sea or other fixed point. Preferably, the mooring device to allow quick connection or disconnection.

Preferably the container is equipped with ballast tanks, preferably the front and rear, and automatic ballast system, ensures retention of the installation at the same level depending on the intensity of the flow of the tide and effort associated with the rotation of the rotor blades.

Preferably the system includes a lifting means for transfer of the blades of the rotor of the unfolded working position to a folded retracted position. These lifting means can consist, for example, hydraulic cylinders powered by a permanently rechargeable accumulators and providing a lifting rotor blade from the unfolded position to the folded position for transportation of the device in bad weather conditions or in case of system failures.

Other features and advantages of the present invention will be further described with reference to the accompanying drawings.

In figure 1, 2A and 2b shows the installation in accordance with the present invention, a perspective view, view sat the ku in the working position and a side view in the transport position, respectively.

The apparatus comprises a cylindrical container 1, provided with a pair of counter rotating rotors 2, driven by the blades 3. Blade 3 rotates the sleeve 4 of the rotor under the action of the water tide (not shown)that flows across the blades 3 of the rotor.

In particular, a cylindrical floating container 1 in the form of a pipe includes a main hollow section, comprising a cellular structure made of steel plates or reinforced concrete), with a streamlined front section 12 and a beveled rear section 13, fastened to the formation of a single design. Cylindrical floating cylinder 1 may contain elements such as transformers and possibly equipment to convert power (not shown). Access inside the container 1 is provided through watertight hatches (not shown).

The cylindrical floating cylinder 1 is attached hydrodynamic supporting keel section 8, provided with the necessary bracket 6 adjustable length carrying the underwater gondola 5, the sleeve 4 of the rotor and the blades 3. Keel section 8 has a multi-section design, made from steel.

The bracket 6 of the rotor carrying the underwater gondola 5, the rotor bushing 4 and the blade 3 made with the possibility of rotation in the hinge 7 and fixing in vertical position in the operating mode (figa) or in a horizontal position mode Tran is porterhouse (pigv) after turning in the direction of arrow "A". The bracket 6 is running on a hydraulic actuator (not shown).

Underwater gondola 5 are rigidly connected to the bracket 6 and carries a sleeve 4 of the rotor and the blades 3. On each sleeve 4 rotor has two blades 3 (which may be fixed or adjustable pitch). The blades can be installed with a fixed slope or in another embodiment with adjustable tilt. When installing adjustable pitch angle of the blades may be automatically adjusted for optimal operation.

The extraction of energy from the blades 3 of the rotor and its transfer at a given speed of rotation of the shaft of the generator can be implemented by various means (not shown). Preferably these means include the use of direct-drive generator placed inside waterproof underwater gondola 5. This eliminates the need to use the gearbox that reduces the number of rotating elements and reduces the transmission energy, resulting in reduced wear, reduced maintenance requirements and longer service life. Other tools include hosted in waterproof gondola 5 gearbox and generator. In both cases, the electrical energy is fed further along the cable to the transformer located in cylindri Eskom floating cylinder 1, when the output power cable can be laid along the mooring supports 10 and then on the bottom for connection to the electrical network. In another embodiment, a direct-drive generator, or the node with the gearbox and generator can be placed in the cylindrical body of the container 1 and is connected with the sleeve 4 of the rotor through perpendicular to the transfer.

Possible other ways of energy transfer from the rotor to the generator. For example, the rotor blades can be powered generator via a hydraulic transmission, and the generator preferably is located inside the cylinder. Preferably the placement of the generator and its associated transformer, a control unit, hydraulic accumulators and similar devices inside the cylindrical floating cylinder 1.

This design can also be used to generate useful energy other than electrical, for example hydraulic energy.

Simple passive mooring design, which allows the installation of free to yaw in the direction of the tide, contains mooring docking station 11 and mooring rack 10 that is attached to a cylindrical floating cylinder 1 by means of a hinge 9. Mooring docking unit 11 is attached to the bottom anchor (not shown) with one mooring rope (not shown).

Inside the front conical clubs which 12 can be set to automatically ballast system (not shown). She may have automatic controls for maintaining a constant level mounting location depending on the intensity of tidal currents and associated efforts on the rotor blades. The above-described embodiments of the present invention can be improved without going beyond the essence of the present invention.

1. Generator set to generate energy from water movement, in particular, tidal movement, containing elongated, essentially circular in cross-section of the floating cylinder extending from its bottom supporting means and connected to a generator rotor with vanes, and the rotor via the supporting means attached to the container by a hinge on the keel of the cylinder can be rotated from the first or folded position directly under the balloon in the second unfolded position, facing in the direction of tidal flow, so that during operation of the movement of water through the blades of the rotor rotates the rotor, ensuring the production of energy by the generator.

2. Installation according to claim,1, characterised in that it contains two rotors, each of which is mounted on its supporting means.

3. Installation according to claim 2, characterized in that the said two rotors are made with the possibility of counter-rotation.

4. Installation according to claim 1, characterised the jaś fact, in the unfolded position of the rotor blades or rotors installed the most close to the floating container.

5. Installation according to claim 1, characterized in that each rotor has two rotor blades, which are specified in the folded or retracted position parallel to the longitudinal axis of the container.

6. Installation according to claim 1, characterized in that it is equipped with warning lights or warning device, warning sailors of her presence.

7. Installation according to claim 1, characterized in that it includes a mooring means, made and attached to the safety to the bottom of the sea or other fixed point.

8. Installation according to claim 1, characterized in that the container is equipped with ballast tanks.

9. Installation according to claim 1, characterized in that it includes an automatic ballast system, ensures retention of the installation at the same level depending on the intensity of the flow of the tide and effort associated with the movement of the rotor blades.

10. Installation according to claim 1, characterized in that it includes a lifting means for transfer of the blades of the rotor of the unfolded working position to a folded retracted position.



 

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