SU1465412A1 - Apparatus for disinfection with ozone - Google Patents

Abstract

The invention relates to devices for the production of ozone and is intended to equip disinfection chambers, the processing of which is carried out by ozone in times, liters, and objects, and reduces the energy production of ozone and the supply of ozone-air mixture. The device consists of an external cylindrical electrode, made of metal mesh, and an internal one, containing discharge disks and ionizing disks of a star shape. Ionizing discs are made of discs of smaller diameter than bit sharp edges. 1 3. p. F-ly, 2 ill.

Description

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The invention relates to devices for the production of ozone and disinfection measures in the agricultural production, food industry, medicine, etc.

L.i, e. ib of the invention - reduction of energy consumption for the production and supply of ozone-air mixture.

FIG. 1 shows the device, a cross-section; FIG. 2 shows section A-A in FIG. one.

The device.) Contains an external electrode 1, which is made in the form of a metal cylinder with openings for supplying an ozone-air mixture or a metal grid. The core 2 is coaxially located inside this cylinder, on which alternate discharge disks 3 and ionizing disks 4 are star-shaped, made of disks of smaller diameter. The discharge disks and the ionizing disks are separated by spacer sleeves 5. On the rod 2 are mounted centrifugal

sleeves 6. which are made of dielectric material. A high voltage (15-40 kV) from the power supply is connected to the internal electrode. The external electrode is grounded.

The device works as follows.

By applying a high voltage to the inner electrode in the discharge gap between the edge of the discs and the inner surface, a barrier-free discharge arises, resulting in the formation of ozone from the air. At the same time, at the sharp edges of the disks 4, the air is largely ionized and an “electric wind” arises, the latter carrying the air along with the ozone formed through the holes in the outer electrode of the outer air. Directions “Electric wind - from the edge of the stars to the outer Electra. Ch.

NDs of the same diameter of 1 and one disks and ionizing disks between the inner and outer, spectroscopic vorshkast spark breakdown due to high kop4;

Oi SP 4:

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concentration of charge carriers (oxygen ions) at the sharp edges of the asterisks. Therefore, the ionizing disks should be of smaller diameter, and in the investigated voltage range (15-40 kE) the recommended diameter of ionizing disks is 0.8-0.85 of the diameter of the discharge disks.

Since the air flow is perpendicular to the continuation of the device's axis, no pressure is created between the individual disks, as a result of which the discharge is distributed evenly over all the disks.

All this ensures a reduction in energy consumption (energy intensity) in the production of ozone and its supply to the processing facility.

The installation between star-shaped ionizing discs increases the degree of ionization of air or another oxygen-containing gas in the discharge zone. With a very high degree of ionization of the gas in the discharge zone (even a non-self-sustaining discharge, called Tomsonovsky, can occur. The number of additional charge carriers increases due to ionization of the gas in the discharge zone the current in the discharge without increasing the field voltage, and this, if the mode limits are chosen correctly, leads to an increase in the ozone yield, and in some cases even up to 30%, i.e. almost almost to an increase in the current in the discharge.

The degree of ionization of the discharge gap depends on the geometry of the electrodes themselves and the strength of the floor in this gap. Since the ionizing disks of the star-shaped Noy have sharp points, this contributes to the localization of the discharge and its transfer to Tom Sonovsky’s discharge with a further transition

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in spark form. But in the case of spark discharge, the formation of nitrogen oxides and a significant decrease in the formation of ozone occur.

In order for this not to occur, it is necessary to reduce the intensity of the floor in the discharge gap of the ionizing disks. For this, it is necessary to increase the discharge gap or the voltage of the device power supply. But a decrease in the supply voltage leads to a decrease in the intensity of the field in the discharge gap of the discharge disks, i.e., a decrease in the performance of the ozonizer. Therefore, there is only one way out - reducing the size of the ionizing discs.

When the ratio of the diameters of the ionizing and discharge disks is 0.8-0.85, a noticeable improvement in the characteristics of the device is achieved; ozone output increases by 15–20%; the device works without breaking the electric mode (there are no spark breakdowns).

Claims (2)

1. An ozone disinfection device containing an external mesh cylindrical electrode and an internal electrode equipped with discharge disks that are separated by spacer sleeves, which are equipped with star-shaped ionizing disks to reduce the energy-generating capacity of ozone and the ozone-air mixture. installed between the discharge disks, and the diameter of the ionizing disk is less than the diameter of the discharge disk. 2. The device according to claim 1, characterized in that the ratio of the diameters of the ionizing and discharge disks is 0.8-0.85. Aa fig 2