ELECTRODE OF OZONATION PLANT AND METHOD OF ITS MANUFACTURING Russian patent published in 2014 - IPC C25B11/00 

FIELD: electricity.

SUBSTANCE: electrode of an ozonation plant represents a hollow sealed structure made of two identical membranes with a dielectric barrier on the outer surface; external and internal spacer rings that determine height of the electrode; a heat exchange attachment placed in the cavity of the electrode. Membranes made from metal or alloy with valve properties, have the shape of the disk with a central hole and flanging along the external and internal diameters, made for generation of electric discharge within the limits of active areas of the electrode. Thermal contact of internal surfaces of membranes with an attachment and spacer rings, and tightness of the electrode is provided by vacuum soldering. Preparation of the surface of parts for soldering and their protection against oxidation is carried out in environmentally pure solutions. Assembly and soldering of the structure is carried out in an assembly-soldering facility, made from metal with a lower temperature coefficient of linear expansion compared to materials of the electrode. In process of structure heating under temperature below the temperature of solder melting, thermal leveling is carried out on flat surfaces of the electrode due to directed thermal extension of spacer rings and attachment of the ribs, which helps to achieve equidistance of discharge gap of electrodes during their assembly. Simultaneously under appropriate temperatures they perform homogenisation of metal and vacuum etching of working surfaces of the electrode for subsequent creation of the dielectric barrier on them. The dielectric barrier is formed by electrochemical method in the form of an oxide film. After formation of the barrier layer on the working surfaces of the electrodes, their assembly is carried out jointly with a spacing gasket for creation of the specified discharge gap.

EFFECT: higher efficiency of cooling of its working surfaces during synthesis of ozone, nozzles for supply and drain of coolant, diametrically arranged on the outer ring.

2 cl, 1 dwg