SU1752755A1 - Method for clearing and stabilization of food liquids and device for its implementation - Google Patents

Abstract

Usage: in the food industry, in the wine industry. The hydrodynamic vortex emitter has cylindrical chambers of different diameters, a unit for changing the length of the chamber of larger diameter, and a magnetic system mounted outside of the cylinder. The invention relates to the food industry, in particular to the clarification and stabilization of food liquids. The purpose of the invention is to improve the quality of the finished product due to the joint effect on the product of cavitation, constant and alternating magnetic fields. The method is carried out as follows. The liquid to be treated is hydrated into the apparatus and is acted upon by a magnetic field together with cavitation at a frequency of 8–10 kHz, the product of the intensity of the drike chambers and formed by electromagnets creating oppositely directed constant magnetic fields and an alternating field. fluids simultaneously act on alternating and constant magnetic fields. The treated fluid is tangentially injected through the inlet into a large-diameter chamber, where it twists and leaves the smaller-diameter chamber. In the central part of the larger diameter chamber, during rotation, a vacuum arises, into which the treated liquid rushes, then a negative pressure is again formed when the liquid flows out of the outlet opening of the smaller diameter chamber. In this case, the frequency of the alternating magnetic field and the frequency of oscillations of the fluid flow in the vortex radiator are 8–10 kHz, and the product of the intensity of the magnetic field of the permanent magnets and the processing time is 150–300 kA / m s. 2 sp.f-ly, 1 ill., 3 tab. the magnetic field at the processing time is 150-300 ° C. M In the drawing, an apparatus for carrying out the method is shown. The device consists of coaxially connected cylindrical chambers made of non-magnetic materials: chambers 1 of larger diameter with outlet openings 2 for tangential entry of the processed product and chamber 3 of smaller diameter with outlet 4, from pressure gauge 5 not installed outlet 4, unit 6 for changing camera length 1 larger diameter about большего VJ SL h h a

Description

pa and a magnetic system consisting of direct current electromagnets 7 and alternating current electromagnet 8 located on chamber 1 of larger diameter, constituting an oscillating circuit with a variable capacitor, alternating current electromagnets located on chamber 3 of smaller diameter.

The device works as follows.

With the help of the supercharger, the treated liquid is tangentially injected through the inlet 2 into the chamber 1 of a larger diameter, where it twists and leaves the chamber 3 of a smaller diameter. In the central part of chamber 1, a rotation occurs a vacuum into which the treated fluid rushes, then a negative pressure is again formed when fluid flows out of chamber 3 through the outlet 4. To reduce the loss of rotational energy of the fluid, the end of the inner cylinder has a spherical shape with a rounding radius h / 2, where h is the wall thickness of the cylinder.

The alternation of the zones of overpressure and underpressure creates conditions for the occurrence of cavitation effects. The described system for processing liquids allows generating hydrodynamic oscillations with a frequency of up to 15 kHz at an intensity of up to 1 W / cm2. Simultaneously with the hydrodynamic effect on the treated fluid, the electromagnetic field created by the magnetic system is affected. The intensity of the magnetic field, formed by a system of magnets that create a constant magnetic field, is parallel to the axis of the cylindrical system. As the fluid makes rotational movements relative to the same axis. This magnetic field intensity vector and the rotational velocity vector of the fluid are mutually perpendicular or the constant magnetic field is transverse with respect to the rotational motion of the fluid.

In addition to the rotational movement, the treated fluid has a translational motion along the axis of the cylindrical system. In this fluid movement, a magnetic field intensity gradient affects it, due to the fact that the magnetic field vectors of the two electromagnets of each module creating a constant magnetic field are directed oppositely, and the alternating field of the third electromagnetic field acts in the space between them. module for which the direction of speed is indifferent. To enhance the effect, the frequency of the oscillations of the alternating current is chosen to be 8-10 kHz.

The device is configured for a given mode of operation as follows.

Suppose technologically necessary processing frequency for this product is known.

Considering the known pressure of the PL supercharger according to the formula

V P1-P2

P2

where A is the frequency of hydrodynamic oscillations;

P2 is the pressure indicated by the pressure gauge at the outlet;

K is constant for this device,

using the node b to change the length of chamber 2, the length of chamber 2 is changed until the pressure P2 takes on such a value that A calculated by this formula is equal to the required frequency. Then, using a variable capacitor, the same frequency is set in the AC electromagnets.

EXAMPLE 1 The processing of wine is carried out in a pulsating flow by applying a magnetic field to it, together with a cavitation frequency of 8 kHz and the product of the magnetic field strength over time.

kA

s (500 x 0.3 s). Obram

kA

processing 150

M

boiled wine filtered. The stability to colloidal opacities is determined after filtration, as well as after 4 and 8 months of storage at a temperature of 15 ° C and a relative humidity of 75%.

PRI mme R 2. Grape juice is processed in a pulsating flow by acting on a magnetic field, together with 10 kHz cavitation and the product of the magnetic field intensity.

floor per treatment time 300

kA m

(750 x

XO, 4 s). Processed grape juice is filtered. Its stability to colloid opacities is determined after filtration, as well as after 4 and 8 months of storage at a temperature of 15 ° C and a relative humidity of 75%.

PRI me R 3.

Alcoholized block juice of physico-chemical composition given in table. 2, is directed to the apparatus chamber.

In the processing of liquids at a frequency of an alternating magnetic field and a frequency of a vortex radiator, as well as at

the product of the magnetic field strength below or above the stated values, the effect on the processed product is much less pronounced.

In tab. 1-3 shows the comparative indicators of the composition of liquids before and after treatment according to the proposed method. Thus, using the proposed method allows improving the quality of the finished product.

Claims (2)

Claims 1. A method of clarifying and stabilizing food liquids, which involves treating a liquid when cavitation oscillations are superimposed in a hydrodynamic vortex emitter, characterized in that, in order to improve the quality of the finished product, a variable and constant effect on the vortex emitter magnetic fields, and the frequency of the alternating magnetic field and the frequency of the cavitational oscillations of the flow in the vortex the emitter is the same and equal to 8-10 kHz, and the product of the intensity of the magnetic field of the permanent magnets for the processing time is 150-300 m with. 2. A device for clarifying and stabilizing food liquids, containing a hydrodynamic vortex emitter formed by two coaxial cylindrical chambers of different diameters with an inlet nozzle and an outlet orifice, characterized in that, in order to improve the quality of the finished product, it is equipped with a device for changing the length of the larger diameter chamber and a magnetic system installed on the outside of the cylindrical chambers and consisting of modules, each of which contains electromagnets, with between each two The electromagnets that create counter-directed constant magnetic fields are placed by an electromagnet that generates an alternating magnetic field. T a b ICHD a 1 table 2 787 767 shzh / x / / V. V. / g Continued table. 2 Table 3