UA21860U - Hydrodynamic installation for cavitation milk pasteurizer - Google Patents

Abstract

A hydrodynamic installation for cavitation milk pasteurizer contains a hydro station, a milk pump, a processing reservoir of cover. In the delivery pipe are mounted in parallel a hydrodynamic cavitator which input is connected with a injection tank of the milk pump and output through milk pipe is connected to the internal hollow of the reservoir above the level of net-damper and a milk foamer mounted in the upper part of semispherical cover of the reservoir perpendicularly to the net-damper surface.

Description

Description of the invention

The useful model refers to the equipment of the dairy industry, in particular to the devices of primary 2 processing of milk and can be used in mini-shops and farms.

Pasteurization of milk - heat treatment of milk up to 63...90 6Сb in order to destroy pathogenic microorganisms that can get into milk, as well as to increase its stability during storage. During pasteurization, brucellosis, tuberculosis and other pathogenic microorganisms die without changing the taste, smell and consistency of milk.

A well-known automatic device for milk pasteurization is a plate heat exchanger (1) with heat exchange sections for pasteurization, regeneration and cooling (brine or ice water).

The water supplied by the pump to the pasteurization section is heated in the boiler by steam and enters the injector.

Steam consumption is 26 bkg/h. The plate pasteurization unit is used both for pasteurization and cooling of milk. The installation is produced with a productivity from 1000 to 500Ol/h.

The main disadvantages of such an installation are large overall dimensions and material consumption, high energy consumption.

Therefore, such installations for pasteurization of milk are not suitable for mini shops and farms in the conditions of agricultural production.

A close analogue is the plant for pasteurizing milk |2), which consists of an internal working bath, a stirrer, an electric motor, a worm gear, an annular frame, and a thermometer for controlling the temperature of milk.

The disadvantages of this installation are its low productivity, high energy consumption, and low efficiency of the technological process. 29 The main disadvantage of modern devices is that during pasteurization they do not carry out cavitation treatment of /(n-) milk. It is known that milk contains 87,595 water and 12,590 solids, of which 3,896 milk fat, 3,390 proteins, 4,796 milk sugar, 0,795 minerals. In milk, fat is distributed in the form of fat globules with a complex protein shell, in the form of an emulsion. The size of fat globules ranges from 1 to 5 μm, and the number of fat globules larger than 2 μm is more than 5095 and depends on the breed and individual characteristics of the cow. The nutritional value of milk is largely determined by the size of fat particles (Se) in milk. Grinding milk fat balls to sizes smaller than those in the primary product increases the value of milk by almost a third, while various bacteria and viruses are destroyed more effectively. co

The purpose of the invention is to justify and develop an energy-saving hydrodynamic pasteurizer, which through "cavitation treatment of milk ensures the complete destruction of bacteria and viruses of all forms in it and increases food quality

From the value of milk. with

The basis of the milk pasteurizer with simultaneous cavitation treatment is a hydrodynamic radiator, which converts the energy of the turbulent flooded jet of liquid into thermal energy, heating the milk. The most expedient is the mechanism of hydrodynamic radiation due to the pulsation of the cavitation region that forms between the nozzle and the obstacle. The main elements of such an emitter are a Z7Z 70 conical-cylindrical nozzle, a jammer-reflector and a resonant oscillating system in the form of rods located along the forming grooves. Reflecting surfaces can be convex, flat and concave. The best in terms of energy is a concave reflector in the form of a hole, which ensures the formation of a cavitation region. The hydrodynamic emitter works under the pressure of milk created by the pumping station. The pumping station consists of a serial pump, an electric motor, and control and measuring equipment. It is built into the structure pasteurizer in the form of a block-modular system and can be unified. - Fig. shows the general diagram of the proposed hydrodynamic installation of the cavitation milk pasteurizer. The installation has a drive electric motor 1, a coupling 2, which connects the pump 3, the discharge line 4, the cavitator

Ge") 250 5, taps 6,8,9,10,11,12,13,19, which are designed to regulate the process, pressure gauges 7,20, fire extinguisher grid 14, foaming agent 15, level 16, capacity 17, thermometer 18, suction line 21.

The hydrodynamic installation of the cavitation milk pasteurizer works in two modes: accumulation of milk in the capacity of the installation and direct pasteurization of milk.

In the milk storage mode, the unit works as follows. When the drive 99 electric motor 1 is turned on through the coupling 2, the pump Z starts to work and sucks milk from an external source into the main line (a) to the open tap 10, which enters the suction line of the pump 3, while the taps 19, 11 must be open, and the taps -- 6,8,9,12,13 are closed. After the container is filled, the tap 10 is closed. Faucet 19 regulates the milk filling mode to the set capacity level of the installation. The working pressure is controlled by the manometer 7. 60 In the pasteurization mode, when the drive electric motor 1 is turned on, through the coupling 2, the pump C starts to work and sucks milk from the container 17 through the line 21 into the suction line of the pump 3, while the taps 10, 12, 13 must be closed, and taps - 9,8,6,11,19 - open. The tap 19 regulates the preliminary working pressure of the discharge line 4, which is controlled by the manometer 7. Milk under pressure passes through the discharge line 4 and enters the cavitator 5, where the milk is heated. In parallel, the milk enters the foamer 15 along the main line 4. The pressure for supplying milk to the foamer is regulated by the valve 6, and the working pressure in the cavitator is regulated by the valve 8.

The milk that has passed through the main line through the cavitator and in parallel through the frother enters the tank, where it is extinguished by a mesh. This mode is repeated several times to heat the milk to a certain temperature, which is controlled by the thermometer 18.

Pasteurized milk is fed into the container of finished products through the tap 12 and the main line (c).

The proposed device for milk cavitation provides an effective simplified milk cavitation technology, reducing energy consumption several times, reducing metal consumption and increasing the productivity of the equipment, and allows improving the quality and nutritional value of pasteurized milk in the conditions of mini-shops and farm 7/0 farms.

Sources of information 1. Babkin V.P. Mechanization of cow milking and primary processing of milk. - M.: Agropromizdat, 1986. 2. Krasnokutsky Yu.V. Mechanization of primary processing of milk. - Moscow: Agropromizdat, 1988.

Claims (1)

19 Formula of the invention Hydrodynamic installation of a cavitation milk pasteurizer, containing a hydrostation, a milk pump, a technological capacity of a cover, which is distinguished by the fact that a hydrodynamic cavitator is mounted parallel to each other in the discharge line, the inlet of which is connected to the discharge cavity of the milk pump, and the outlet through the milk pipe is connected to of the inner cavity of the container above the level of the fire-extinguishing net, and the milk frother, which is mounted in the upper part of the hemispherical lid of the container perpendicular to the surface of the fire-extinguishing net. that 2 "c) (Se) (ee) "- p - and? ime) - (ee) (o) (42) 60 b5