A device for converting the energy of sea waves into electricity

 

(57) Abstract:

The essence of the invention: shaft PTO installed by coupling the pulleys and envelopes of their ropes, the ends of which are connected to the floats with tension. On a support hinged beam or cantilever levers and guides the cable pulleys. Each float is made in the form of two cones connected between the bases. The angle of the upper cone is made obtuse, the lower - sharp. The floats are attached to the ends of the rocker arms or levers rigid hinges, fixed on the ends of the rods. The centers of gravity and magnitude of floats placed inside the scope of the swivel with a thrust. 9 C. p. F.-ly, 9 Il.

The invention relates to power engineering and can be used in devices for converting the energy of sea waves into electricity.

It is known a device for converting wave energy, which is closest to the invention by the technical nature.

This device includes a support, floats, PTO installed on it via couplings pulleys and envelopes of their ropes, the ends of which are connected with floats and with the means of tension.

Its not the and energy conversion energy waves move floats in rotational energy due to the forces passed the rope through the pulleys and couplings on the shaft and then to the generator.

The rotation of the output shaft is a rope that is wrapped around the pulley. When the movement of the float down on the rope the force of weight, used as a means tension, negative force caused by the water resistance of this package. When the movement of the float upwards on the rope force equal to the buoyancy force of the float minus the drag force and the weight of the cable tension. The rotation of the output shaft is provided by these forces and torques is equal to the product of the force on the radius of the pulley. The increase in torque and power transmitted to the shaft, possibly by increasing or force acting on the pulley, or the radius of the pulley that the device in question is very problematic.

Other disadvantages of the known solutions are its complexity and the large number of components and parts in direct contact with sea water, a very hostile environment, which reduces the reliability and durability of the device as a whole.

The disadvantage of the prototype is its low affinity for the excitement of a wide range of amplitudes and wavelengths.

This technical result is achieved in that the device is equipped with a hinge mounted on a support a rocker arm or cantilever levers and the guide rope pulleys, each of the floats made in the form of two cones connected between the bases, the angle of the upper cone is made obtuse and acute lower, while the floats are attached to the ends of the rocker arm or cantilever levers, through hard pivoted on the ends of the rods, the centers of gravity and magnitude of floats placed inside the scope of the swivel with a thrust, bearing is made in the form prescribed on the bottom of the tower, jutting out over the water level, or in the form of boats, stabilized by vertical strokes, the pulleys are made at least two grooves, with envelope section in the form of a parabola, the shaft of separate interconnected parts, means of tension cables in the form of coil springs or cargo, and the arm length of the rocker arms or levers multiple of half the wavelength, the most typical area of application, and at least two floats are interconnected.

In Fig.1 presents the proposed device with rockers, General view; Fig.2 is the same, BHA Fig.5 device with levers, top view of Fig.6 and 7, a clutch for connecting the shafts; Fig.8 illustrates the dependence of the supply of power to the shaft; Fig.9 float.

The device comprises a support 1 made in the form of towers or in the form of boats, stabilized by vertical motion (not shown), the floats 2, shaft 3, PTO, clutch 4, a pulley 5, a cable 6, the hinge device 7, the rocker arm or cantilever arms 8, the cable pulley 9, the upper cone 10 of the float, the bottom cone 11 of the float, the base 12 cones, hinge 13 of the float, the weight of the cable tension (spring) 14.

Position 15 shows the bottom of the sea, position 16, the shaft of the load cable tension in the support, the position of the 17-cantilever beam pulleys rope, position 18 bearing pulleys rope, position 19, the surface waves, the position of the anode 20. The device also comprises a support 21 of the output shaft, the bearing 22 of the shaft; the clutch 23 of the connection sections of the shafts PTO, gear 24, the generator 25, the outer race 26 of the coupling element 27 of the rolling elements, the inner ring 28 of the clutch housing 29 of the coupling, the upper hinge 30 of the float rod 31 of the float (position 32 shows the space float for traction), the lower hinge 33 of the float, the node 34 float for cable mounting airline float. CG center of gravity of the float; the black centre of buoyancy of the float; G weight force of the float; R buoyancy force of the float.

Each float 2 is made in the form of two cones connected between the bases 12, and the angle of the top of the cone 10 is made blunt, and the bottom cone 11 sharp.

The floats 2 are attached to the ends of the rocker arm 8 or levers (8) by means of hinge joints 13 and rigid, hinged rods 31 so that DH and black float is placed inside the area 33 swivel thrust 31 with the float 2 inside volume 32 float to accommodate thrust 31.

Float perform so that it vidoizmenyayutsya volume 35 was large enough, i.e. that the stock of "buoyancy" was great, then submersible volume 36 of the float in relation to wodoslawsky volume 35 should ensure sufficient stability of the float 2 that nevygodno provides the proposed form of the float 2.

The device comprises a shaft 3, PTO, mounted on bearings 22, placed on the supports 21, placed either on the supports 1 device or on the shore. The shaft 3 PTO contains fixed by coupling 4 pulleys 5 and envelopes of their ropes 6, the ends of which are connected with popla the dinner (Fig.1 and 5). Cables 6 conducted through the cable pulleys 9, posted by or on supports 18 or cantilever beam 17.

Bearings 17 mounted on the bottom 15, protruding above the water level 19.

In sea support 1 mounted on the craft stabilized by vertical strokes, such as semi-submersible drilling platform, also protruding above the water level 19. The pulleys 5 of the shaft 3 PTO perform one trench (Fig.6) or with two grooves (Fig.7), while the interaction with two cables 6 attached to the both ends of the rocker arm 8 when transmitting power to the shaft 3.

To ensure the best cordon without slippage of the cable 6 with the surface of the pulley 5 of the shaft 3 of the power take-off surface trough is made on the envelope, having a cross-section in the form of a parabola.

Generally, the unit is made of individual modules so that the shaft 3 of the PTO are made of parts (Fig. 5) connected by a coupling 23 to the connection shaft 3 PTO, for example, containing nodes: inner sleeve, the outer sleeve and the hydraulic nut, which allows unlimited to increase the shaft 3 of the PTO and the total power transmitted by the shaft.

The shoulders of the rocker arm 8 and the console Richie application, however, the arm length can be a multiple of a quarter wavelength with a large number of modules installed.

When hosting a large number of modules at least two floats 2 are connected. Two floats 2 are connected and on the same module.

The clutch 4, placed on the shaft 3 of the power take-off, perform in the form of a freewheel (overrunning) (Fig.6, 7), including the outer race 26, the rolling body 27 and the inner ring 28, are accommodated in the housing 29.

In Fig.8 shows the "load time" for the four modules. P value, P1, R2, R3, R4the values of the forces, is approximately proportional to the wave amplitude, i.e., time, amount on the shaft of the PTO give the full amount of power to the shaft 3. The real picture is different from the delays caused by the inertia of the nodes and other conditions.

Device for conversion of the wave energy is as follows.

When performing the floats 2 convert energy waves through the cables 6, the pulleys 5 and couplings 4 during the rotation of the shaft 3 PTO, leading through the Overdrive gear 24, the generator 25, to generate electricity.

1. DEVICE FOR Preobrugenie it through couplings pulleys and envelopes of their ropes, the ends of which are connected with floats and with the means of tension, characterized in that it is provided with a hinge mounted on a support a rocker arm or cantilever levers and the guide rope pulleys, each of the floats made in the form of two cones connected between the bases, the angle of the upper cone is made obtuse and acute lower, while the floats are attached to the ends of the rocker arms or levers by means of a rigid hinge, mounted on the ends of the rods, and the centers of gravity and magnitude of floats placed inside the scope of the swivel with a thrust.

2. The device under item 1, characterized in that the support is executed in the form prescribed on the bottom of the tower, jutting out over the water level.

3. The device according to PP.1 and 2, characterized in that the support is executed in the form of boats, stabilized by vertical motion.

4. The device according to PP.1-3, characterized in that the pulleys are made at least two grooves, with envelope section in the form of a parabola.

5. The device according to PP.1-4, characterized in that the shaft is made of separate interconnected parts.

6. The device according to PP.1-5, characterized in that the means of tension is athenia cables made in the form of goods.

8. The device according to PP.1-7, characterized in that the shoulders of the rocker arms or levers are made with a different length.

9. The device according to PP.1-8, characterized in that the arm length of the rocker arms or levers multiple of half the wavelength, the most typical area of application.

10. The device according to PP.1-9, characterized in that at least two float soedinenii each other.

 

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