RU1814504C - Milk cooling and storage apparatus - Google Patents

Abstract

Usage: cooling milk on livestock farms. SUMMARY OF THE INVENTION: a milk cooling and storage unit comprises a thermally insulated body with a milk container having a jacket for cooling liquid. The jacket contains the evaporator of the refrigeration unit. The evaporator has the shape of a volumetric geometric body, made of bent metal pipes uniformly spaced throughout the volume of the evaporator. 1 s.p. f-ly, 3 ill.

Description

The invention relates to agriculture, in particular to refrigeration units, and can be used in livestock farms for cooling and storing milk.

The aim is to expand technological capabilities and increase the reliability of the installation.

In FIG. 1 shows the proposed installation; FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a section BB in FIG. 1.

The installation comprises a housing 1 with thermal insulation 2 and an outer decorative casing 3. A milk bath 4 is installed in the housing, on top of which a milk stirrer 5 with a drive is installed. The bath 4 has covers 6 and is installed in the housing 1 with the formation between their walls of the shirt 7, filled with coolant (water) B. In the end part of the housing there is a refrigeration unit 8, an evaporator 9, which is installed in the jacket 7 and load

WITH

wives into water B. The evaporator 9 has the shape of a parallelepiped and is composed of metal zigzag bent pipes uniformly distributed over the entire volume of the parallelepiped. The evaporator 9 is mounted on the frame 10. Next to the evaporator 9, a device 11 is installed for forced circulation of water around the bath 4 and the evaporator 9. It is made in the form of a four-blade screw. The bath 4 and the housing 1 are provided with drain taps 12 and 13 for milk and water, respectively. Position 14 denotes the supports of the installation.

The installation works as follows.

Prior to the start of milking, taking into account the frequency and time during which a power outage occurs in a given area, the refrigeration unit 8 is turned on to freeze the required amount of ice on its evaporator 9. When the unit is turned on, 8 refrigerant enters the evaporator

00

Ј

ate

2

with

9 and the passage through its metal tubes dramatically cools them. As a result of this, due to the heat transfer of the tube, the evaporator first cools the water B into which they are immersed and then begins to become covered with ice. The ice on the tubes located inside the body gradually grows into a single block. After the required amount of ice has accumulated, the unit is ready for cooling and storing milk. After that, you can pour milk. In the process of pouring milk into the bath 4, a device 11 for forced circulation of water B around the bath 4 and is turned on. evaporator 9. Water B, flowing around the evaporator 9, cools and further cools the walls of the bath 4, flowing along them. Milk M in bath 4 begins to cool through the walls due to heat transfer. When milk M is poured into bath 4, it mixes and cools therein. After filling bath 4 with milk M, stirrer 5 is turned on to increase the cooling rate. After cooling the milk M poured into the bath 4 to the required temperature, the cooling unit 81 of the mixer 5 and the device 11 are turned off. Subsequently, the temperature of the milk M when it is stored in the bath 4 is maintained by heat exchange between the ice of the evaporator 9 and the walls of the bath 4 through water B in the jacket 7 installations. If necessary, the mixer 5 and device 11 can be switched on. If enough ice has accumulated on the evaporator 9, the process of cooling milk M in the bath 4 may

AND

G

carried out with the refrigeration unit 8 switched off. When pouring milk M into the bath 4, the mixer 11 is turned on. After filling the milk 4 with the milk M, the mixer 4 is turned on

mixer 5. The rest is as in the previous case.

Thus, the use of the proposed installation allows the conditions of livestock farms to expand

technological capabilities of the equipment and increase its reliability in operation, as well as increase yield when preparing milk for dispatch for processing and storing it before transportation to

dairy processing enterprise.

Claims (2)

1. Installation for cooling and storing milk, comprising a thermally insulated body in which a milk container with a stirrer is installed to form a jacket for coolant, as well as a refrigeration unit with an evaporator arranged in a jacket having the shape of a three-dimensional geometric body and made of curved metal pipes, characterized in that, in order to expand technological capabilities and increase reliability in work, bent metal pipes are evenly spaced throughout the volume of the evaporator, 2. Installation according to claim 1, characterized in that the evaporator has a parallelepiped shape. Aa f fi