RU2541779C2 - Installation for liquids disinfection by physical factors complex impact - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: installation contains an operation vessel with an inlet and an outlet nipples which is designed in the form of a cylindrical screen body where a perforated resonating chamber and a sieve screen body are coaxially mounted. A circular coil is wound on the side surface of the screen body. The operation vessel is equipped with a lid whereon a UHF generator unit (the radiator whereof is directed into the perforated resonating chamber) is installed. On the outside of the side surfaces of the cylindrical screen body and under its lower base ultrasonic oscillations sources represented by piezoelectric elements with ultrasonic generators are installed. The operation vessel inlet and outlet nipples are connected to a circulation pump, an isolation valve and an uviol glass pipeline parallel whereto an ultraviolet rays source is installed.

EFFECT: liquid products disinfection in continuous flow mode by a complex impact of physical factors such as UHF electromagnetic field, ultraviolet rays bactericidal flux and ultrasonic oscillations; the complex impact of physical factors kills vegetative form of microorganisms at a temperature lower than in case of separate impact of each physical factor.

2 dwg

Description

The present invention relates to the food industry, in particular to the disinfection of liquids (water, milk, etc.).

Known microwave installation for pasteurization and disinfection of liquids [1], containing a microwave generator, microwave fluid heater, receiving and filling tanks, pumps, cranes, valves. In this case, the microwave heater is multi-tubular, the heat exchanger-recuperator is designed to recover the heat of the pasteurized liquid and the heat of the water cooling the microwave generator.

A known installation for heat treatment of liquid [2], containing a cavity resonator of the microwave generator, inside of which there is a radio-transparent sectioned drum in a cylindrical radio-transparent case with a lid.

A device for increasing the efficiency of microwave ovens is known, comprising a heating chamber made of thin sheet metal, on the upper wall of which a strip antenna is installed, the element of which is a radiator. A source of ultrasonic vibrations is installed on the lower wall of the heating chamber [3].

A known installation for combined exposure to a bactericidal flow of ultraviolet rays and an electromagnetic field of ultrahigh frequency [4], containing an energy emitter in the form of a circular waveguide with a specific working type of wave and a UV lamp.

It is known that effective disinfection of liquid products is achieved by the combined action of an ultrahigh-frequency electric field, a bactericidal flux of ultraviolet rays, and also ultrasonic vibrations.

The present invention is intended for disinfection of liquid products in a flow mode by the combined action of physical factors, such as an electromagnetic field of an ultrahigh frequency, a bactericidal flux of ultraviolet rays and ultrasonic vibrations.

The specified technical result is achieved by the fact that the apparatus for disinfecting liquids by the combined action of physical factors contains a working vessel with inlet and outlet nozzles made in the form of a cylindrical screen housing, inside of which a perforated resonator chamber and a screen screen body are coaxially mounted, on the side surface of which a ring is wound a spiral, the working capacity is equipped with a cover on which a microwave generator unit is installed, the emitter of which is directed inside the perf sources of ultrasonic vibrations - piezoelectric elements with ultrasonic generators, inlet and outlet pipes of the working capacity are connected to a circulation pump, shutoff valves and a uvole glass pipe, in parallel with which the source is installed, on the outside of the resonator chamber, on the outside of the side surfaces of the cylindrical screen housing and under its lower base ultraviolet rays.

The figures show the installation for the disinfection of liquids by the combined action of physical factors and its individual nodes.

In FIG. 1 shows a General view of the installation for the disinfection of liquids by the combined action of physical factors (schematic image). The installation contains a working tank with inlet and outlet nozzles (Fig. 1 ... 2). The working capacity is made in the form of a cylindrical screen case 1 with a cover 4. The installation contains a screen screen case 2, an annular spiral 3, a microwave generator unit 5, a microwave energy emitter 6, a perforated resonator chamber 7, a source of ultrasonic vibrations - piezoelectric elements 8, ultrasonic generators 9 , milk meter 10, uvolev glass pipe 11, ultraviolet irradiator, valves 13, pump 14.

In FIG. 2 shows a spatial image of a cylindrical screen housing.

The working capacity is made in the form of a cylindrical screen case 1. Inside it, a screen screen case 2 is installed coaxially with a gap, an annular spiral 3 is wound on its side surface. The working capacity with the inlet pipe is hermetically closed by a cover 4, on which the microwave generator unit 5 is mounted, emitter 6 which is directed inside the perforated resonator chamber 7. On the outside of the lateral surfaces of the cylindrical screen housing 1 and under its lower base, sources of ultrasonic vibrations s - 8 with the respective piezoelectric ultrasonic generator 9. The input and output pipes 11 of piping are connected uviol glass, the milk meter 10, circulator 14 and stop valves (valves 13).

Installation works as follows. The liquid pump 14 through the pipe 11 is fed into the working tank 1, where the milk flow is in a turbulent mode due to the pressure of the pump 14 and the annular spiral 3, eliminating stagnant zones. When passing through the screen sieve body 2, the concentration of ultrasonic vibrations and the development of active cavitation processes in milk occur, which contributes to its homogenization and enhances the effect of UV rays. In the volume of the cylindrical screen housing 1 simultaneously occurs:

- heating of the fluid as a result of dissipation of the mechanical energy of the fluid flow into thermal energy;

- cavitation heating of the liquid due to the piezoelectric elements 8 of ultrasonic generators 9;

- dielectric heating of the liquid in the perforated resonator chamber 7 of the microwave generator 5;

- liquid disinfection due to the bactericidal flux of UV rays in a thin layer of a quartz tube.

The pipeline 11 and the valve system 13 allow both in-line and cyclical processing of the liquid.

This installation allows you to disinfect the liquid due to the combined effects of three physical factors with reduced energy costs. In this case, the specific effect of each physical factor destroys the vegetative form of microorganisms at a lower temperature than with a separate effect of each physical factor. The degree of reduction of bacterial contamination of a liquid depends on the dose of exposure to each physical factor, that is, on the power of energy sources and the duration of the complex effect.

Information sources

1. Microwave installation for pasteurization and disinfection of liquids. Patent 2106766, IPC H05B 6/64, А23С 3/07 dated 03/10/1998.

2. Installation for heat treatment of liquids. IPC A23C 3/07, patent No. 2432764 dated 10.11.2011, bull. No. 31.

3. Device for increasing the efficiency of microwave ovens. IPC H05B 11/00, patent No. 2355136 dated 05/10/2009.

4. A device for bactericidal treatment. IPC A61L 2/00, patent 2173561 dated 09/20/2001

Claims (1)

Installation for disinfecting liquids by the combined action of physical factors, containing a working tank with inlet and outlet nozzles, made in the form of a cylindrical screen housing, inside of which a perforated resonator chamber and a screen screen body are coaxially mounted, an annular spiral is wound on its side surface, the working tank is equipped with a lid, on which a microwave generator unit is installed, the emitter of which is directed inside the perforated resonator chamber, from the outside side surfaces of the cylindrical screen shell and under its lower base installed ultrasound source - a piezoelectric ultrasound generator, the inlet and outlet pipes of the working tank connected to the circulating pump, and isolation valves uviol of glass tubing, which is installed parallel to a source of ultraviolet rays.

Images