RU2442755C2 - Way of production of treated solutions and device for its implementation - Google Patents

Abstract

FIELD: production of treated solutions.

SUBSTANCE: invention refers to production of treated solutions. The treated liquid is divided into two currents. The first part of the current is cooled down and is saturated with ozone with the help of dispergating under the gage pressure. The second part of the current is heated up. Further on the currents are mixed. The device includes an airproof housing, a circulation pump, an ozone inlet manifold and gas outlet manifold, a dispergator, a cooler and a heater. The discharge piping is divided into two pipes. One of them is connected to the dispergating chamber for ozone. The other one - to the refrigeration condenser. The manifolds that come out from the dispergating chamber and the condenser are combined into the common piping. The ozone inlet manifold is connected to the dipergator located in the lower part of the dispergating chamber. The dispergating chamber is equipped with a pressure reducing valve.

EFFECT: production of solutions with the maximum ozone concentration.

2 cl, 1 dwg, 5 ex

Description

The invention relates to refrigeration technology and technology and can be used in the processing of products, equipment and containers.

A device is known that contains a sealed enclosure with transverse partitions, an aeration device in the form of obliquely mounted nozzles, connected pipelines to a pump for forced circulation of the treated water [SU No. 998379, class. C.02F 1/78, 1981].

This device has a drawback due to the impossibility of creating optimal conditions for a chemical reaction between a liquid and a gas and the duration of the water treatment process.

A known contact chamber containing a sealed housing, a pipe for supplying water, dispersants, a pipe for supplying an ozone-air mixture, flow baffles, an ozone catalytic decomposition apparatus, a pipe for draining water. [Draginsky V.L., Alekseeva L.P., Samoilovich V.G. Ozonation in water purification processes. M .: Delhi print, 2007. (235-238)]

In the contact chamber, the maximum ozone saturation of the treated water is impossible due to its constant temperature entering the treatment, significant loss of ozone due to the low dispersion of the ozone-air mixture; as well as the duration of the water treatment process.

Closest to the proposed one is a device for treating wastewater with gas, comprising a horizontal sealed housing divided by vertical transverse, alternately adjacent to the bottom and overlapping partitions into sections, and rotary aerators connected by pipelines to the circulation pump, heaters located in the lower part of the initial sections, and piping equipped with a refrigerator. [SU 1736951, cl. СОР 1/78, 05/30/92].

However, the device has the disadvantage that it does not create optimal conditions for a chemical reaction between a liquid and a gas and has increased energy consumption due to the installation of heaters in the housing.

The proposed invention is aimed at solving a technical problem, which consists in obtaining solutions with a maximum concentration of ozone, allowing for efficient processing of food products, equipment, containers and refrigeration facilities and reducing energy consumption.

To achieve this technical result, a method for producing antiseptic solutions containing ozonized water treatment is characterized in that the liquid to be treated, for example water, is divided into two streams, while part of the stream goes to cooling in a dispersion chamber equipped with a pressure reducing valve and a dispersant, and is cooled by an evaporator while the solubility of ozone in the liquid increases with lowering its temperature by the refrigeration machine (chiller), and the other part of the stream is directed to cooling the condenser refrigeration machine to relieve heat load, while ozone is saturated with a cold liquid stream to a concentration of 30-50 ml O ₃ per 100 ml of water. The excess pressure created in the dispersion chamber due to the release of ozone from the liquid further increases the saturation of the liquid with ozone. A solution saturated with ozone is subsequently combined with a warm fluid stream coming from the condenser of the refrigeration machine.

Saturation of a cold liquid stream with ozone allows you to maximize the concentration of ozone in it compared to the warm stream of water entering the treatment, and heating the liquid in the condenser, followed by mixing it with a cold saturated solution accelerates the flow of chemical interaction between the liquid and ozone, and, in addition, decreases energy consumption of the refrigeration unit through the use of a working fluid for cooling the condenser, rather than a specially installed water-cooling device, such as a cooling tower .

The drawing schematically shows a device that allows you to implement the proposed method for producing antiseptic solutions. The device comprises a sealed housing 1, a circulation pump 2, nozzles for supplying ozone and a gas outlet, a dispersant 8, a cooler (evaporator 7), a discharge pipe 3, divided into two pipelines, and with the help of a switching valve 4, fluid flows are separated and regulated, while one pipeline is connected to the dispersion chamber of ozone 5, and the other is connected to the capacitor 6 of the refrigeration machine, the pipes exiting the dispersion chamber 5 and the condenser 6 of the refrigeration machine are connected to a common pipeline 10, and ubok ozone supply is connected to the dispersant 8 located at the bottom of the dispersion chamber 5 provided with a pressure relief valve 11.

The device operates as follows: liquid (for example, water) enters the housing 1, from where it is sent by a circulation pump 2 to the dispersion chamber 5 and the condenser 6 of the refrigeration machine. Using the switching valve 4, the flow rate of the liquid to the dispersant 5 and the condenser 6 is regulated depending on the required final concentration of the solution supplied to the object.

Part of the fluid flow entering the dispersion chamber 5 is cooled by the evaporator 7 of the refrigeration machine and is saturated with ozone coming out of the dispersant 8, where it comes from the ozone generator 9, while the refrigerant passes through an adjustable valve 13 to the evaporator 7, where it boils, and then the refrigerant vapor is pumped into the condenser 6 by means of the compressor 12 and condensed, from where the liquid enters the adjustable valve 13, and the refrigeration cycle is repeated. To increase the solubility of ozone in the liquid with the help of a pressure reducing valve, an excess pressure in the dispersion chamber 5 is maintained and, when an increased pressure is formed compared to a predetermined one, an excess amount of the ozone-air mixture formed when the liquid is saturated with ozone.

Another part of the fluid flow enters the condenser 6 of the chiller, removing the heat load from it, and is heated by condensation of the refrigerant vapor. Then, a warm liquid stream, leaving the condenser, is connected with a cold solution saturated with ozone in pipeline 10, saturating the total stream with ozone. Thus, it is possible to obtain an antiseptic solution saturated with ozone.

Example 1. Liquid (water) with a temperature of + 17 ° C enters a sealed enclosure 1, from where it is sent to a dispersion chamber 5 and a condenser 6 of a refrigerating machine using a circulation pump 2 through a switching valve 4. The liquid flow directed to the dispersion chamber, using the evaporator 7 of the refrigeration machine, is cooled to a temperature of + 4 ° C and saturated with ozone coming from the ozone generator 9 into the dispersant 8 to a concentration of 60 mg / L. Using a pressure reducing valve 11, an overpressure of up to 0.2 MPa is maintained in the dispersion chamber. Part of the liquid supplied to the cooling of the condenser 6 of the chiller is heated to a temperature of 23 ° C and enters a common pipeline, where it is mixed with a cold solution saturated with ozone, and the final concentration of the solution is 28 mg / L. The resulting solution-saturated solution is ready for antiseptic treatment of treated objects.

Example 2. It is carried out analogously to example 1. With the following various parameters: the temperature of the chilled liquid is + 6 ° C; the concentration of the ozone solution in the dispersion chamber 52 mg / l; the final concentration of the solution saturated with ozone after mixing with a warm liquid is 22 mg / L.

Example 3. Carried out analogously to example 1 with the following parameters: the temperature of the chilled liquid is + 10 ° C; the concentration of the ozone solution in the dispersion chamber 40 mg / l; the final concentration of the solution saturated with ozone is 16 mg / L.

Example 4. Carried out analogously to example 1 with the following operating parameters: the temperature of the chilled liquid is + 12 °; the concentration of the solution with ozone in a dispersion chamber of 25 mg / L; the final concentration of the solution saturated with ozone is 10 mg / L.

Example 5. Carried out analogously to example 1 with the following operating parameters: the temperature of the chilled liquid is + 14 ° C; the concentration of the solution with ozone in the dispersion chamber of 14 mg / l; the final concentration of the solution saturated with ozone is 6 mg / L.

Example 1 is not recommended for use, since at a liquid temperature of + 4 ° C an unstable operating mode of the refrigeration machine is carried out and when the heat load changes, a rapid decrease in the temperature of the liquid is possible, followed by its freezing in the dispersion chamber.

Example 5 is also not recommended for use, since with the resulting final concentration of the solution its bactericidal effect on spore-forming species of pathogenic microflora is unstable.

The examples of the proposed method and device will increase the efficiency of ozone saturation of the solution compared to the prototype by 40-50% and reduce the energy consumption of the refrigeration unit by 15-20%.

Claims (2)

1. A method of producing antiseptic solutions by treating a liquid with ozone, characterized in that the liquid to be treated is divided into two streams, with the first part of the stream being cooled and then saturated by dispersing ozone at overpressure, and the other part is heated followed by mixing a cold solution and a heated liquid. 2. A device for producing antiseptic solutions containing a sealed housing, a circulation pump, nozzles for supplying ozone and a gas outlet, a dispersant, a cooler and a heater, characterized in that the discharge pipe is divided into two pipelines, one pipe being connected to an ozone dispersing chamber, and the other is connected to the condenser of the refrigeration machine, the nozzles exiting the dispersion chamber and the condenser of the refrigeration machine are connected to a common pipeline, and the ozone supply pipe is connected to the dispenser an organizer located at the bottom of the dispersion chamber, wherein the dispersion chamber is provided with a pressure reducing valve.

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