RU118629U1 - COMBINED OZONE-ULTRASONIC CIRCUIT WATER CLEANER - Google Patents

Abstract

1. Ozone-ultrasonic circulating water purifier containing an outer electrode made in the form of a metal parallelepiped, into which a dielectric cylinder is inserted, and electrodes in the inner region of the dielectric cylinder, characterized in that the electrodes are connected to a high-frequency power source using a switching electromagnetic relay that changes their polarity, and the inner area of the dielectric cylinder is connected to a system of alternating air or purified water supply, which is equipped with solenoid valves synchronized with the switching relay of the high-frequency power supply. ! 2. Ozone-ultrasonic circulating water cleaner according to claim 1, characterized in that the electrodes in the inner region of the dielectric cylinder are made in the form of metal strings.

Description

The invention relates to the purification of circulating water by ozone and ultrasound, which is used in a closed cycle for washing the manufactured product, for example, with offset printing.

Today, ozone disinfection of water is one of the key stages of any modern water treatment system. Ozone oxidizes inorganic and organic water pollutants, converting them into insoluble compounds. And ultrasound intensifies the processes that occur during water treatment: sedimentation, coagulation, filtering, adsorption, oxidation of organic and inorganic pollutants.

The analogue is “an ultrasonic device for disinfecting water” (Kulsky L.A. Theoretical foundations and technology for water conditioning. 3rd ed., Revised and additional - Kiev: Nauk. Dumka, 1980. - 564 s). It consists of a tank with exhaust and inlet solenoid valves, inside of which there is an emitter made of ferrite in the form of a tube with a spherical concentrator. The principle of operation is based on magnetostrictive vibrations of a ferromagnetic core. This device cannot handle ozone.

The closest in technical essence is the device "high-frequency ozonizer" (RF Patent No. 2075433, C01B 13/11, High-frequency ozonizer / Shapiro S.V., Voronov B.A., No. 5064705/26; Claim 15.04.92 Publ. March 20, 1997, BI No. 8, S.158.), Selected as a prototype. It contains an external low-voltage electrode made in the form of a metal parallelepiped with a cylindrical inner surface separated from the active zone by a dielectric barrier, and an internal high-voltage electrode made of metal tubes whose axes are parallel to the axis of the active zone. This device cannot perform ultrasonic processing.

The technical task is to increase the efficiency of water purification, increase the productivity of equipment by combining the principles of operation of a high-frequency ozonizer and an ultrasonic device for disinfecting water.

To solve the technical problem, it is proposed to use a dielectric cylinder made of a waterproof material - ceramics, inserted into a cylindrical hole of a metal parallelepiped, and metal strings are located in the inner region of the dielectric cylinder. The strings and the metal box are connected to a high-frequency power source using a switching electromagnetic relay. The inner region of the dielectric cylinder is connected to a system of alternating supply of air or purified water, which is equipped with electromagnetic valves synchronized with a switching relay of a high-frequency power source.

The proposed utility model is an ozone-ultrasonic cleaner and a system for supplying air and purified water.

Figure 1 and figure 2 shows the device of an ozone-ultrasonic cleaner: figure 1 is a side view in section, figure 2 is an end view in section; figure 3 and figure 4 is a system of combined ozone-ultrasonic treatment of circulating water.

The ozone-ultrasonic cleaner (figure 1, figure 2) consists of a dielectric cylinder 1 made of ceramic, which is inserted into the cylindrical hole of the metal parallelepiped 2, which plays the role of an external electrode. In the inner region of the dielectric cylinder 1 there is an active zone 3 and metal strings 4 playing the role of internal electrodes.

The system of combined ozone-ultrasonic treatment of circulating water, shown in figure 3 and figure 4., includes a compressor 5, the engine of which is switched on by electromagnetic relay 6; a cooler 7, which is a "coil", cooled by water, which is supplied through an electromagnetic valve 8 and drains through an electromagnetic valve 9; silica gel desiccant 10, connected by means of an electromagnetic valve 11 to an ozone-ultrasonic cleaner 12, the polarity of the electrodes of which is changed using a switching electromagnetic relay 13, and its power source is a frequency converter 14, turned on by electromagnetic relay 15; a bubbler chamber 16, the supply of contaminated liquid into which is regulated by a distributing electromagnetic valve 17, and the supply of ozone is carried out through a hose 18.

The ozone and ultrasonic cleaning intervals differ in the position of the electromagnetic relays 6 and 13 and the electromagnetic valves 8, 9, 11, 17. FIG. 3 shows the position of the electromagnetic valves and electromagnetic relays for the ozone cleaning interval, and FIG. 4 for the ultrasonic cleaning interval.

The ozone-ultrasonic cleaning system operates as follows.

In the ozone cleaning interval (Fig. 3), the electromagnetic relay 6 turns on the compressor motor 5, and the switching electromagnetic relay 13 provides the following polarity of the electrodes of the ozone-ultrasonic cleaner 12: the external electrode is low voltage, the internal string electrodes are high voltage. The solenoid valves 8, 9 and 11 are in the open position. Air through a compressor 5 is supplied under pressure to the cooler 7. After cooling, air enters the dryer 10 to eliminate excess moisture, which reduces the efficiency of the ozonizer. The dried air enters the ozone-ultrasonic cleaner 12 through an electromagnetic valve 11. The ozone obtained in it is supplied to the bubble chamber 16 through a special hose with holes 18. The distributing electromagnetic valve 17 delivers contaminated liquid to the bubble chamber 16, where it is cleaned with ozone. Insoluble precipitate falls to the bottom of the bubble chamber 16 and is discharged out through a special hole. The remaining ozone-air mixture is also discharged outside the bubble chamber.

When applying to the electrodes of the ozone-ultrasonic cleaner 12 a high alternating voltage with a frequency f _{1 of} at least 10 kHz between the inner string electrodes 4 and the outer electrode 2 (Fig. 1), an uneven electric field is generated, the greatest intensity of which is found at the inner string electrodes 4. In the active zone 3, a traveling barrier discharge arises, the action of which on an oxygen-containing gas leads to the appearance of atomic oxygen and then ozone.

In the ultrasonic cleaning interval (Fig. 4), the switching electromagnetic relay 13 provides the following polarity of the electrodes of the ozone-ultrasonic cleaner 12: the outer electrode is high voltage, the inner string electrodes are low voltage. The electromagnetic relay 6 disconnects the compressor motor from the power source, the air ceases to flow into the system; the electromagnetic valves 8, 9 and 11 are switched to the locked position, the distributing electromagnetic valve 17 redirects the contaminated liquid to the ozone-ultrasonic cleaner 12, where it is directly cleaned. The purified liquid washes the bubble chamber 16.

When applying a high alternating voltage with a frequency f _{1 of} at least 10 kHz between the inner string electrodes 4 and the outer electrode 2, the electrodes begin to be attracted to each other with a frequency f ₂ = 2f ₁ . If the internal string electrodes 4 are tensioned so that their resonant frequency corresponds to 2f ₁ , then powerful ultrasonic vibrations occur in the core 3, which process the fluid flowing through this chamber. Processing occurs due to cavitation, i.e. the appearance and instant "collapse" of bubbles.

The amplitude of the pressure created by the strings at an arbitrary point is calculated using the mirror image method:

where k _y is the coefficient of elasticity of the medium, k is the wave number, h is the depth of the cylindrical surface, n is the number of the rod, R ₂ is the distance to the rod, R ₃ is the distance to the mirror image of the rod.

A calculation using these formulas shows that the treatment of water by ultrasonic cavitation in the inner cavity of the cylinder is substantially uniform.

Claims (2)

1. Ozone-ultrasonic circulating water purifier containing an external electrode made in the form of a metal parallelepiped, in which a dielectric cylinder is inserted, and electrodes in the inner region of the dielectric cylinder, characterized in that the electrodes are connected to a high-frequency power source using a switching electromagnetic relay that changes their polarity, and the inner region of the dielectric cylinder is connected to a system of alternating supply of air or purified water, which is equipped with an electromagnet total valves synchronized with the switching relay of the high-frequency power supply. 2. Ozone-ultrasonic circulating water purifier according to claim 1, characterized in that the electrodes in the inner region of the dielectric cylinder are made in the form of metal strings.