Tidal power plant

 

(57) Abstract:

The invention is intended for use in hydropower, particularly in tidal power plants. The installation includes two pairs installed on the bottom of the supports, fixed on them with the possibility of rotation of the horizontal shaft kinematically connected with the generator and located underneath the shaft on the water surface is a flat float, attached to the lower Central part with a flexible element to the bottom, on the upper Central part of the float is installed, the vertical hour, the upper free end of which is made in the form of a U-shaped fork, loosely embracing the shaft and on the inner surface of the U-shaped fork deposited layer of rubber, and on the cylindrical surface of a steel shaft in the place of contact with the fork made the knurling. The design provides continuous operation with periodic change in the direction of the tidal waves. 4 Il.

The invention relates to hydropower and can be used, in particular, tidal power plants.

Known construction undertow engines, including radial rods and the title of hydropower plants. M - L: SEI, 1955, S. 225/ or blades mounted on the rods still have the shape of a wedge and is supplied from its inception grooves /and see.with. The USSR 1105683, CL F 03 13/12, 1984/.

However, these structures are characterized by considerable complexity, large size and limited scope.

Also known wave power installation comprising a partially liquid filled floating body located therein is a flat float, the Central part of which the edges are connected by flexible elements respectively with the bottom and upper part of the body, as well as PTO generator /and see.with. The USSR 1260557, CL F 03 13/12, 1986/.

The disadvantages of the known devices is the complexity of the design, relatively low efficiency, very limited scope, and more importantly, the instability of the transmission torque from the float on the shaft through a flexible elements in non-stationary wave perturbations.

The closest device to the same destination to the claimed invention on the totality of symptoms is the wave power installation comprising a support, a generator and podsoednineny floats, the centers of symmetry of which are in the same perpendicular to the shaft plane /and see.with. The USSR 1208298, CL F 03 In 13/14, 1986/ and adopted for the prototype.

For reasons that impede the achievement of specified following technical result when using the known device, taken as a prototype, are of considerable complexity and size of the device, the impossibility of its use in the case of a periodic change of direction of the waves, characteristic of tidal power plants, i.e. the limited scope of the known device.

The invention consists in creating designs tidal power plant, providing continuous intensive rotation of the output shaft of the electric generator when the periodic change in the direction of surf /roll - rollback/ due to the formation at different periods of disturbing influences acting on the shaft unidirectional traction force of sliding friction.

The technical result - the simplified design, reduced size and increased functionality of the device.

This technical result in the implementation of the invention is achieved by the fact that h is th at them with the possibility of rotation of the horizontal shaft, kinematically connected with the generator and located underneath the shaft on the water surface is a flat float, attached to the lower Central part with a flexible element to the bottom, the peculiarity lies in the fact that on the upper Central part of the float is installed, the vertical hour, the upper free end of which is made in the form of a U-shaped fork, loosely embracing the shaft, and the mutually contacting surfaces of the shaft and the fork are made of materials with high friction sliding over each other.

The invention is illustrated by drawings, where Fig.1 schematically shows a tidal power plant, General view; Fig.2 is a left side view of Fig.1; Fig.3 is a cross section along a - a in Fig.1 when the roll of the surf /sea side/ of Fig. 4 is a cross section along a - a in Fig.1 when the rollback surf /coastal/.

The device comprises two pairs installed on the bottom of the 1 near the shore 2 poles 3, oriented in each pair at an angle to each other, mounted on poles 3 with the possibility of rotation of the horizontal shaft 4, kinematically connected with a toothed wheel 5 generator 6, also mounted on poles 3, are placed through a flexible element 8 /rope/ to the bottom 1. At the top center of the float 7 installed vertical column 9 of rectangular cross section, the upper free end of which is made in the form of a U-shaped fork, loosely embracing the shaft 4, and the mutually contacting surfaces of the shaft 4 and the fork are made of materials with high friction sliding over each other. In the specific case on the inner surface of the U-shaped fork caused the rubber layer 10, and the cylindrical surface of a steel shaft 4 in the place of its contact with the plug 10 is made of a special pipe 11, which increases the coefficient of friction of steel on rubber to the amount of sliding friction materials cast iron-rubber 0.7 to 0.8.

The operation of the device is as follows.

When the roll of the surf from the sea to the shore/ float 7 /see Fig.3/ with stand 9 is shifted toward the coast 2. At the same time the water level at the coast 2 rises and the float 7 with a rack 9 moves upward. This inner U-shaped surface of the plug 10 with his left in Fig.3 part is pressed to the shaft 4, and simultaneously hour 9 moves upward, resulting due to torque forces of sliding friction shaft 4 bramae what I plug 10 is pressed to the shaft 4 of the right part, and due to the motion of the rack 9 with a float down the shaft 4 is again imposed clockwise rotation. Periodic forward - recoil of the waves causes continuous intense unidirectional rotation of the shaft 4 of the PTO, which actuates a generator 6.

It is obvious that the proposed design is extremely simple, compact, provides significant efficiency and stability convert the energy of the waves into electrical energy, has a wide functionality. Its performance is virtually unaffected by the presence of various extraneous disturbances, the presence or absence of wind, sea state. The design is practically not sensitive to manufacturing errors, Assembly, i.e. does not lose health when the slopes and biases of the float, the deviation from the vertical position of the rack with a fork, and the like.

Tidal energy installation comprising two pairs installed on the bottom of the supports, fixed on them with the possibility of rotation of the horizontal shaft kinematically connected to a generator, and the float, wherein the float is made flat and is located underneath the shaft on the surface of Verhnij the Central part of the installed vertical hour, the upper free end of which is made in the form of a U-shaped fork, loosely embracing the shaft and on the inner surface of the U-shaped fork deposited layer of rubber, and on the cylindrical surface of a steel shaft at the point of contact with the fork made the knurling.

 

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