RU220617U1 - Device for water purification and disinfection - Google Patents

Abstract

The utility model relates to devices for purifying and disinfecting water and can be used for bactericidal purification and reducing the content of harmful impurities and eliminating foreign odors in water used in swimming pools and reservoirs, as well as consumed in various institutions and residential buildings. The device for water purification and disinfection is made in the form of a vortex cavitator containing at least two vortex tubes 2 with inputs 3 for supplying into each of them a mixture of water with an air-ozone mixture to form in each of the vortex tubes 2 a separate vortex flow with a direction of vortex common to all vortex tubes 2, displacers 5 installed in each of the vortex tubes 2 in the form of a rod, a common chamber 4 formed at the final section of all vortex tubes 2, which is made with a silver coating with a thickness of 0.01 mm to 0.1 mm, and a confuser 6 connected to it. The utility model makes it possible to increase the efficiency of water purification by reducing the time of its purification, as well as reducing the amount of ozone used. 1 ill.

Description

The utility model relates to devices for purifying and disinfecting water, and can be used for bactericidal purification and reducing the content of harmful impurities and eliminating foreign odors in water used in swimming pools and reservoirs, as well as consumed in various institutions and residential buildings.

A device for purifying and disinfecting water is known, containing a device for supplying ozone to water moving along a hydraulic line. (RF Patent 2036852, published 06/09/1995).

The known device allows for water treatment by ozonation, but the disadvantage of this device is the low efficiency of the water treatment process, which requires a lot of time to purify water from bacteria and other contaminants.

The closest analogue is a device for purifying and disinfecting water, made in the form of an adsorber containing an input for a mixture of water with an air-ozone mixture into a solid adsorbent, providing additional oxidation of contaminants on its surface. (RF Patent 2102340, published 01/20/1998).

The disadvantage of this device is that the process of purifying water from bacteria and other contaminants requires quite a lot of time. Also, to purify water, this device requires the use of ozone in an air-ozone mixture in an amount of at least 0.2 mg per liter. After purification, ozone remains in the water, which must be removed from it before supplying the water to the consumer. Thus, the known solution is not effective enough for use.

The problem that the useful model is aimed at is increasing the efficiency of water purification by reducing the time of water purification, as well as reducing the amount of ozone used.

The technical result is achieved by the fact that the device for purifying and disinfecting water is made in the form of a vortex cavitator containing at least two vortex tubes with inputs for feeding into each of them a mixture of water and an air-ozone mixture to form a separate vortex flow with a direction of vortex common to all vortex tubes, displacers installed in each of the vortex tubes in the form of a rod, a common one formed at the final section of all vortex tubes and a confuser connected to it.

In addition, the inner surface of the common chamber of the vortex cavitator can be coated with silver or coated with copper with a coating thickness of 0.01 mm to 0.1 mm.

Treatment of water mixed with an air-ozone mixture in a vortex cavitator ensures the combined effect of ultrasonic and hydrodynamic cavitation, which significantly reduces the time of treatment itself, increasing the efficiency of the water purification and disinfection process. In this case, the entire process takes place in a vortex cavitator using ozone in an amount from 0.0028% to 0.003%, which allows it to oxidize all contaminants and bacteria present in the water and at the same time completely decompose. Cavitation treatment of water (ultrasonic cavitation from 25 kHz to 80 kHz and hydrodynamic cavitation, combined in a cavitation vortex reactor) greatly enhances the effects of water ozonation.

Making the inner surface of the common chamber of the vortex cavitator coated with silver or coated with copper with a coating thickness of 0.01 mm to 0.1 mm makes it possible to prolong the disinfecting effect against pathogenic microorganisms for a long time after cavitation treatment and ozonation of water, which is especially important for the use of water during for long periods of time, for example in swimming pools.

The utility model is illustrated graphically, where in FIG. Figure 1 shows a diagram of the proposed device for water purification and disinfection.

The device for water purification and disinfection is made in the form of a cavitator and contains a housing 1 with vortex tubes 2 placed in it with inputs 3 for simultaneous supply of water and an air-ozone mixture to each of the vortex tubes 2. At the final section of all vortex tubes 2, due to their intersection along generatrices, a common chamber 4 is formed. The inner surface of the common chamber 4 is made with a silver or copper coating with a thickness of 0.01 to 0.1 mm. In the vortex tubes 2 there are displacers 5 made in the form of rods. At the exit from the common chamber 4 there is a confuser 6, having, for example, a cone shape.

The device works as follows.

Water, together with an air-ozone mixture prepared in advance, for example, in an ozonizer, is supplied through inlets 3 into the vortex tubes 2 of the cavitator. The ozone content in the air-ozone mixture is preferably from 0.0028% to 0.003%. A mixture of water with an air-ozone mixture is fed into the cavitator with a pressure of at least 3.0⋅10 ⁵ Pa. To force the creation of a vortex, a displacer 5 is installed in each vortex tube 2, the presence of which forces the vortex flow to be pressed against the wall of the vortex tube 2. Vortexes of water, steam, a mixture of air and ozone collide in a common chamber 4, where ultrasonic and hydrodynamic cavitation treatment of the mixture is carried out. Air, ozone and purified water are thoroughly mixed. Steam bubbles formed in water collapse to form centers of high pressure and high temperature, which ensures complete decomposition of ozone (destruction of bacteria, etc.). Thus, at the outlet of the device, there is completely no ozone in the mixture of air and water. In this case, coating the common chamber 4 with silver or copper allows for additional water treatment in order to increase the duration of the disinfection effect against pathogenic microorganisms for a long time after cavitation treatment and ozonation of water.

The confuser 6 installed at the exit from the common chamber 4 provides additional acceleration of the output flow, which is supplied to the consumer from the cavitator.

An example of the implementation of a utility model.

For the experiment, a culture of E. coli (1257) + 40% horse serum was used as a test microorganism. The actual number of E. coli cells in 1 ml of the prepared suspension was 8.5 × 10 ⁸ . Horse serum served to protect the culture from external influences. The suspension was poured into water. 10 liters of water contained 8.5×10 ⁸ units. bacteria.

Contaminated water and an air-ozone mixture with an ozone content in it from 0.0028% to 0.003% were fed into the cavitator. Water was supplied by a 3 kW pump with a water flow rate of 1200 l/h. During the water purification process, the pressure in the hydraulic line at the inlet and outlet of the vortex cavitator was controlled.

During the experiment, it was found that complete destruction of bacteria was achieved within 60 seconds of operation of the device. No traces of bacteria were found in the water.

For comparison, the time for complete purification of a similar amount of water only by ozonation without the use of a cavitator is 730 seconds.

Thus, the useful one can significantly reduce the time of water purification from bacteria and other contaminants when using a small amount of ozone in the air-ozone mixture (about 0.0028% to 0.003%), which significantly increases the efficiency of water purification and disinfection.

Claims (1)

A device for purification and disinfection of water, made in the form of a vortex cavitator containing at least two vortex tubes with inputs for feeding into them a mixture of water and an air-ozone mixture to form in each of them a separate vortex flow with a common for all vortex tubes in the direction of vortex, displacers installed in each of the vortex tubes in the form of a rod, a common chamber formed at the final section of all vortex tubes with an inner surface made of silver coating with a thickness of 0.01 mm to 0.1 mm, and a confuser connected to it.

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