SU1751387A1 - Wave-power plant - Google Patents

Abstract

Use: to convert the energy of the sea to electrical energy. The essence of the invention: on a rigid plate 4 of a fixed support, piezoelements 2 are placed, connected to a consumer. The walls of the sealed enclosure housing 1 are made resilient. The piezoelectric elements 2 are placed in the housing 1 and electrically isolated from its walls, 2 Il.

Description

The invention relates to the field of hydropower engineering and is intended to convert the energy of sea waves into electrical energy in coastal areas of the seas and oceans and in floating structures, such as platforms for mining.

Known Volnov energy installation by po.s. USSR Nt 1283435, cl. ROSE H 13/12, 01/15/87. This wave installation contains a base, a blade mounted on it, and an oscillating motion converter of the blade into electricity, mounted on elastic vertical columns fixed by lower ends on the base.

The converter is made in the form of a streamlined body, pivotally connected to the upper ends of the racks and provided on the inner side with stops and a sealed cylinder with piezoelectric elements filled with non-conducting fluid. The cylinder is equipped with a ring, on the ends of which piezoelements are fixed.

This installation has the following disadvantages: complexity in the manufacture and low reliability, in addition, installing it on the seabed is laborious; difficult

inspections and repairs during operation; it cannot be applied at depths where it is set for the extraction of minerals.

The wave energy installation is known, containing a package of flat supporting structures installed in the sea so that the planes of these supporting structures are located at the level of calm water and are stationary (see M. Mak-Kormik, Wave Energy Transducer. M .: Energoatomizdat, 1985 , p. 105).

This installation has the following disadvantages:

-Setting it on the seabed is laborious;

- difficult inspections and repairs during operation;

-cannot be applied at depths where floating structures are installed for the extraction of minerals.

The wave energy installation is known, which contains a thick film of half-vinylidene fluoride, which is superimposed on the rocks on the seashore in the surf zone (see V. Vershinsky, N. Ocean Energy. M. Nauka, 1986. p. 40).

(L

with

x | ABOUT

CO 00 VI

This installation has the following disadvantages;

-preparation of rocks for application of film on them is laborious and expensive;

- the unprotected film is destroyed by the waves in stormy weather;

- electrical isolation of the film from seawater requires appropriate coating.

This setup is adopted by the prototype of the present invention.

The aim of the invention is to simplify the installation and operation of a wave power plant and increase its reliability.

This goal is achieved by the fact that a wave energy installation comprising a fixed support with a rigid plate and piezoelectric elements placed on it, connected to a consumer, is provided with a sealed enclosure with elastic walls, and the piezoelectric elements are electrically insulated from it.

This installation allows the shell casing to be rolled out of the roll during installation and rolled up during the dismantling, as well as the placement of both film and crystal piezo elements in the casing.

The plate is attached to the wave line of the sea wave on the shore or on shore facilities, such as dams, breakwaters, etc., or on floating structures, such as platforms for mining.

The application of the proposed installation will simplify the installation and operation of the wave power plant and expands its scope.

Figure 1 presents the scheme of the wave setup; figure 2 shows the placement of the installation on the breakwater.

The installation contains a sealed enclosure housing 1, in which piezoelectric elements 2 are placed, connected to electrical consumers.

The housing 1 is made of elastic material. The piezoelectric elements 2 are electrically insulated by the electrically insulating material 3 from the housing 1.

The housing 1 is fixed on a rigid plate 4,

made of durable material resistant to shock waves of the sea.

Plate 4 is fixed on the line of the waves of the sea waves on the coast, or on the coastal structures, for example, on the breakwaters 5

or dams, or on floating structures, such as platforms for mining.

The installation works as follows.

The waves hit the shell of the housing 1 and through it exert periodic pressure on the piezoelectric elements 2, on which an emf is created. EMF is applied to electrical consumers.

As a result of the application of the proposed wave power plant, installation and operation will be simplified, reliability will increase, and the scope of wave power plants will be expanded.

Claims (1)

The invention of the Volnov energy plant, comprising a fixed support with a rigid plate and piezoelectric elements placed on it, connected to a consumer, characterized in that, in order to simplify installation and operation by providing the possibility of rolling out of a roll during installation and rolling into a roll during disassembly, The installation is equipped with a sealed enclosure, the walls of which are made of elastic, and the piezoelectric elements are placed in the case and electrically isolated from its walls. 2