RU57267U1 - WATER OZONIZATION PLANT - Google Patents

Abstract

The utility model relates to electrical technology and can be used in the design of new plants for cleaning and disinfecting high-performance water. The utility model reduces energy consumption when treating water with ozone. Installation for ozonation of water contains a contact tank 1 with nozzles for supplying the source 2 and drain 3 of the treated water 4, an ozone generator made in the form of a tube 5 of a dielectric material, optically transparent for ultraviolet discharge, with a nozzle 6 for introducing oxygen-containing gas at one end coaxially located inside the high-voltage electrode 7, the outer surface of the high-voltage electrode forms a discharge gap with the inner surface of the tube through which oxygen passes containing gas, and a low-voltage electrode, the function of which is performed by water, a power source for an ozone generator 8, the terminals of which are connected to electrodes, a dispersant 9 for introducing ozone-rich oxygen-containing gas into the water, mounted at the other end of the tube. The high-voltage electrode is made in the form of a spiral with a helical surface formed by helical twisting of the plate, the outer forming the size of the spiral is less than or equal to the inner diameter of the tube. 1 ill.

Description

The utility model relates to electrical technology and can be used in the design of new plants for cleaning and disinfecting high-performance water with reduced energy consumption when treating water with ozone.

A known installation for ozonation of water, containing a contact tank with nozzles for supplying source and removal of treated water, an ozone generator, through the discharge gap of which oxygen-containing gas passes, with high-voltage and low-voltage electrodes, a power source for the ozone generator, the terminals of which are connected to the electrodes, a dispersant for input Ozone-enriched oxygen-containing gas into water (Application for. 2003110894 RF, MKI C 02 F 9 \ 12. Device for disinfecting running water \ V. Lukyanov, V. N. Tyukin, etc. - Declaration 16.0 4.03, Published on November 19, 2004. BIMP No. 32).

The disadvantage of the installation for ozonation of water is the high energy consumption when treating water with ozone, due to design flaws, poor cooling conditions of the discharge gap of the ozone generator, decomposition of ozone during the transportation of oxygen-containing gas from the ozone generator to the dispersant, and also on the walls of the connecting pipelines, which leads to a decrease ozone release, by not using other active factors of the electric discharge (ultraviolet radiation, chemically active short-lived radicals).

A known installation for ozonation of water, containing a contact tank with nozzles for supplying source and removal of treated water, an ozone generator, with a nozzle for introducing oxygen-containing gas, through the discharge gap of which oxygen-containing gas passes, with high-voltage and low-voltage electrodes, a power source for the ozone generator, the conclusions of which connected to electrodes, dispersant

for introducing ozone-enriched oxygen-containing gas into water (Purification of industrial wastewater / S.V. Yakovlev, Y.A. Karelin and others; Edited by S.V. Yakovlev. - M.: Stroyizdat, 1985. - P.119 )

The disadvantage of the installation for ozonation of water is the high energy consumption when treating water with ozone, due to design flaws, poor cooling conditions of the discharge gap of the ozone generator, decomposition of ozone during the transportation of oxygen-containing gas from the ozone generator to the dispersant, and also on the walls of the connecting pipelines, which leads to a decrease ozone release, by not using other active factors of the electric discharge (ultraviolet radiation, chemically active short-lived radicals).

A known installation for ozonation of water, containing a contact tank with nozzles for supplying the source and removal of treated water, an ozone generator located directly in the water, made in the form of a tube of dielectric material, optically transparent for ultraviolet discharge, with a nozzle for introducing oxygen-containing gas on one the end coaxially located inside the high-voltage electrode, the outer surface of the high-voltage electrode forms a discharge gap with the inner surface a tube through which an oxygen-containing gas passes, and a low-voltage electrode, the function of which is performed by water, a power source for an ozone generator, the leads of which are connected to the electrodes, a dispersant for introducing ozone-rich oxygen-containing gas into the water, mounted on the other end of the tube (P. 51011 RF, MKI C 02 F 9 \ 12. Installation for water ozonation \ EM Silkin - Declaration 04.08.05, Publish 27.01.06. BIMP No. 3).

This installation for ozonation of water is the closest in technical essence to a utility model and is considered as a prototype.

The disadvantage of the installation for ozonation of water is the high energy consumption when treating water with ozone, due to design flaws, the use of

not a highly efficient form of electric barrier discharge in the volume, poor cooling conditions of the discharge gap of the ozone generator.

The utility model is aimed at solving the problem of reducing energy consumption when treating water with ozone, which is the purpose of the utility model.

This goal is achieved by the fact that in the installation for ozonation of water containing a contact tank with nozzles for supplying the source and removal of treated water, an ozone generator located directly in the water, made in the form of a tube made of a dielectric material optically transparent for discharge ultraviolet radiation, with a nozzle for introducing oxygen-containing gas at one end coaxially located inside the high-voltage electrode, the outer surface of the high-voltage electrode forms a discharge gap ok with the inner surface of the tube through which the oxygen-containing gas passes, and a low-voltage electrode, the function of which is performed by water, a power source for an ozone generator, the terminals of which are connected to the electrodes, a dispersant for introducing ozone-rich oxygen-containing gas into the water, installations at the other end of the tube, characterized in that the high-voltage electrode is made in the form of a spiral with a helical surface formed by helical twisting of the plate, the outer forming the size of the spiral is less than or equal to the inner d ametru tube.

A significant difference that characterizes the utility model is the reduction in energy consumption when treating water with ozone. This is achieved by improving the design of the installation, increasing the useful part of the energy input into the electric discharge by changing the shape of the electric barrier discharge and significantly improving the cooling conditions of the ozone generator.

The reduction of energy consumption in the treatment of water with ozone is a technical result due to the claimed design of the installation of water ozonation, the principles of the device of the ozone generator, cooling, the method of water treatment, connection

elements of the installation for ozonation of water, that is, distinctive features. Therefore, the distinguishing features of the inventive installation for ozonation of water are essential.

The figure shows the functional diagram of the installation for ozonation of water with structural elements, explaining the device, the principle of connecting parts and the operation of the inventive installation for ozonation of water.

The installation for ozonation of water in this embodiment has a design with one ozone generator. Fundamentally, the installation may contain a large number of ozone generators connected in parallel. The principle of operation of the installation for ozonation of water does not change. A volume-surface barrier discharge is excited in the ozone generator of the water ozonation unit.

Installation for ozonation of water contains a contact tank 1 with nozzles for supplying the source 2 and drain 3 of the treated water 4, an ozone generator located directly in the water, made in the form of a tube 5 of a dielectric material, optically transparent for discharge ultraviolet radiation, with a nozzle 6 for input oxygen-containing gas at one end, coaxially located inside the high-voltage electrode 7, the outer surface of the high-voltage electrode forms a discharge gap with the inner surface of the pipe a tube through which an oxygen-containing gas passes, and a low-voltage electrode, the function of which is performed by water, a power source of an ozone generator 8, the terminals of which are connected to the electrodes, a dispersant 9 for introducing ozone-rich oxygen-containing gas into the water mounted on the other end of the tube. The high-voltage electrode is made in the form of a spiral with a helical surface formed by helical twisting of the plate, the outer forming the size of the spiral is less than or equal to the inner diameter of the tube.

Installation for ozonation of water works as follows. Oxygen-containing gas enters the ozone generator through the pipe 6 and passes through the discharge gap

ozone generator in the direction of the arrow. The electrodes of the ozone generator, one of which is the treated water 4, is connected to the terminals of the power source of the alternating current ozone generator 8. When the voltage of the alternating current power supply 8 is applied between the electrodes of the ozone generator (high voltage electrode 7 and water 4) under the influence of the indicated voltage in the discharge gap between the outer surface of the high-voltage electrode 7 and the inner surface of the tube 5 of dielectric material in the flow of oxygen-containing gas there is an electric barrier discharge. Since the high-voltage electrode is made in the form of a spiral with a helical surface formed by helical twisting of a plate (a long strip, for example, of metal), the external forming spiral size is less than or equal to the inner diameter of the tube, the flow of oxygen-containing gas swirls along the forming helical surface and becomes virtually turbulent , and a volume-surface barrier discharge arises in the discharge gap. An electric discharge has the structure of individual microdischarges, quasi uniformly distributed over the surface of a tube of dielectric material. In microdischarges, oxygen molecules dissociate. Oxygen atoms formed as a result of dissociation during collisions with oxygen molecules form ozone molecules. At the same time, the reverse reaction of the decomposition of ozone in an electric discharge occurs, under the influence of ultraviolet radiation and temperature. The technological conditions for the synthesis are provided such that the process of ozone formation in the discharge gap prevails over the process of its decomposition. As a result, at the outlet of the discharge gap, the oxygen-containing gas has a predetermined amount of ozone in the mixture. The set ozone concentration is determined by the electric mode of the ozone generator, the quality of preparation and purification of the oxygen-containing gas, as well as the cooling conditions of the discharge gap elements of the ozone generator and the oxygen-containing gas. Oxygen-enriched gas enriched with ozone is introduced into the treated water through

dispersant 9 mounted on the other end of the tube 5. Since the inventive installation for ozonation of water provides operational contact of an oxygen-containing gas subjected to an electric barrier discharge with treated water 4, in addition to ozone, other chemically active substances and radicals formed can also be involved in oxidation reactions in an electric discharge, for example, atomic oxygen and a hydroxyl radical. The hydroxyl radical is the most chemically active of the known oxidizing agents. The formation in an electric discharge and the possibility of the simultaneous use of ozone and other chemically active substances and radicals can reduce the required amount of ozone for water treatment and increase the useful part of the energy input into the discharge, that is, reduce the unproductive energy consumption for water treatment. The electric volumetric-surface barrier discharge is a source of intense ultraviolet radiation. The implementation of the tube 5 of the ozone generator from a discharge of a dielectric material that is optically transparent for ultraviolet radiation makes it possible to use ultraviolet radiation of the discharge in oxidative processes and to intensify the chemical processes of oxidation by ozone and other chemically active substances and radicals. As a result, all active factors of the electric discharge are used more fully and unproductive energy costs are reduced. The dielectric tube 5 of the ozone generator is cooled directly by water 4, which increases the cooling efficiency and ozone output. The treated water 4 enters and is withdrawn from the contact tank 1 through the nozzles for supplying the source 2 and removal 3 of the treated water 4. The turbulent flow of oxygen-containing gas improves the cooling conditions in the discharge gap and the high-voltage electrode. The shape of the volumetric-surface barrier discharge is more effective for the electrosynthesis of ozone.

The ozone generator in the claimed design of the installation for ozonation of water can be made on the basis of a tube of metal. In this case, the internal high-voltage electrode

It is made with an external dielectric coating. This design of the ozone generator provides greater mechanical strength. However, in this case, it is impossible to use such an active electric discharge factor as ultraviolet radiation when treating water. The principle of operation of the installation for ozonation of water in the manufacture of a tube of metal, in general, does not change, but the energy consumption during the treatment of water with ozone increases slightly.

Compared with the prototype when using the inventive installation for ozonation of water significantly reduced energy consumption when treating water with ozone. Using the design of the claimed utility model allows more fully use all the active factors of the electric discharge in the treatment of water with ozone, to intensify the process of ozonation of water and the effect of other oxidative reactions on the treated water. The shape of the volumetric-surface barrier discharge used is more effective for ozone electrosynthesis. By changing the shape of the electric discharge and improving the cooling conditions of the ozone generator in the inventive utility model, energy costs are reduced and ozone output is significantly increased. Additionally, in gas bubbles in water, including near the outer surface of the tube of an ozone generator, it is also possible to synthesize ozone and other chemically active substances and radicals and the appearance of partial electric discharges (due to local increases in the electric field strength in gas bubbles), intensified by ultraviolet radiation of the barrier discharge in the discharge gap. In general, the energy consumption when treating water with ozone when using the inventive utility model of a plant for ozonation of water can be reduced by 10 ÷ 12%.

Claims (1)

Installation for ozonation of water, containing a contact tank with nozzles for supplying initial and discharging treated water, an ozone generator located directly in the water, made in the form of a tube of dielectric material, optically transparent for ultraviolet discharge, with a nozzle for introducing oxygen-containing gas at one end coaxially located inside the high voltage electrode, the outer surface of the high voltage electrode forms a discharge gap with the inner surface of the tube, Through which an oxygen-containing gas passes, and a low-voltage electrode, the function of which is water, a power source for an ozone generator, the terminals of which are connected to the electrodes, a dispersant for introducing ozone-rich oxygen-containing gas into the water, mounted on the other end of the tube, characterized in that the high-voltage electrode is made in in the form of a spiral with a helical surface formed by helical twisting of the plate, the outer forming the size of the spiral is less than or equal to the inner diameter of the tube.