SU1752285A1 - Milk cooler - Google Patents

Abstract

Milk cooling in dairy farms and primary milk processing plants The device for cooling milk contains a capacitive heat exchanger battery, a milk tank and a water pump with warm and chilled water pipelines. The end of the warm water pipe is installed in the lower part of the battery-heat exchanger, which is made in the form of a heat-insulated antifreeze tank with cooling hatches. In the heat exchanger battery, elastic granules with water are placed with the possibility of free movement. The density of the granules with frozen water is lower, and with unfrozen water is higher than the density of antifreeze. The end of the chilled water piping is installed at the top of the heat exchanger battery and communicated by piping to the end of the warm water piping. Concentric to the pipeline connecting the ends of pipelines of warm and cooled water, a funnel is placed to direct the flow of pellets, and a guide cone is installed under the bottom of the heat exchanger battery. 1 hp f-ly, 2 silt (L S

Description

The invention relates to refrigeration equipment, and specifically to devices for cooling milk.

A device for cooling milk is known, which includes a capacitive accumulator-heat exchanger in the form of a cone installed in the ground, a piping system, a water pump and a milk reservoir.

The device has a low heat exchange rate due to the removal of the end of the heat dissipating pipe from the ice surface during operation.

This disadvantage is partially eliminated in another device, which is characterized in that at the end of the pipeline with

the possibility of vertical movement is installed corrugated hose with a reflector of water flow.

This device, by bringing the stream of heated water closer to the surface of the ice, makes it possible to increase the intensity of heat exchange. However, the intensity of heat exchange is limited by the surface area of the ice that is commensurate with the cross-sectional area of the heat exchanger battery. In addition, this device has a low accumulation rate of cold (freezing of ice), since, as it freezes, a layer of ice increases

ate

Leaky, prevents heat transfer between the external environment and unfrozen water

The purpose of the invention is to increase the cooling efficiency of milk due to the intensification of cold storage in the heat exchanger.

The goal is achieved by the fact that in a milk cooling device containing a capacitive accumulator heat exchanger, a milk reservoir, a water pump with pipes for cooled and heated water, the end of the latter being installed in the lower part of the heat exchanger accumulator according to the invention. -the heat exchanger is made in the form of a heat-insulated antifreeze tank with cooling hatches located in the lower part of the tank, in a heat exchanger battery placed with the possibility of free movement of the granule with elastic shell filled with water and having density with frozen water below, and with unfrozen water higher than the antifreeze density, while the end of the chilled water pipeline is installed in the upper part of the heat exchanger battery and communicated with the pipeline of the heated water pipeline and concentrically with the pipe communicated ends pipelines of warm and cooled water, a funnel is placed to direct the flow of granules, and a guide cone is installed below the bottom of the heat exchanger battery.

FIG. 1 is a diagram of a device for cooling milk; in fig. 2 - capacitive battery-heat exchanger.

The device contains a capacitive heat exchanger battery 1, connected by pipelines 2 and 3, respectively, for heated and cooled water, with a jacket 4 for cooling the milk tank 5. A pump 6 is installed on the pipe 2 for the heated water. The pipe 2 passes through the cavity of the heat exchanger battery 1 filled with antifreeze 7, in which the granules 8 freely float. 8 The granules 8 are made in the form of balls with an elastic shell, the cavity of which is filled with water. frozen water is lower than the density of antifreeze, and with unfrozen higher. The body of the battery heat exchanger is lined with a heat insulating layer 9 fitted with hatches 10. Concentric to pipe 2 below the layer of granules 8 there is a funnel 11, and a cone 12 on the bottom. To compensate for the expansion of the volume of the granules during freezing of water in them,

communicates with the atmosphere through a breather valve 13

In winter, during the period of greatest cold, hatches 10 are opened. Due to the low

air temperature the temperature of the antifreeze 7 and the pellet 8 drops below 0 °. The water in the granules 8 freezes, accumulate cold. The large surface area of the granules contributes to the intensification of freezing of water and the accumulation of cold. By the onset of heat, the hatches 10 are closed.

To supply cold water to the cooling jacket 4, the tank 5 is turned on to the pump 6. At the same time, the water begins to circulate,

passage through pipe 2 through the battery-heat exchanger 1.

The water in the pipe 2 is cooled, and the granules 8, which are in the zone of contact with the pipe, are heated. Heating occurs before

ice in the granules 8. At this point, the density of the granules exceeds the density of antifreeze 7 and they rush down, and their place is taken by other granules with ice. Down on the bottom, the granules are cooled and the water in them

freezes, as the antifreeze temperature 7 is below 0 °. The frozen water granules again float up and the process repeats. The funnel 11 directs the descending pellets to onus 12, which, in turn,

directs them to the periphery of the heat exchanger battery, arranging the circulation of the granules in this way.

The use of antifreeze and granules as coolants increases

surface area of heat exchange and for estimates of this to intensify the process of accumulation of cold:

Claims (2)

1. A device for cooling milk, containing a capacitive accumulator heat exchanger, a tank for milk, a water pump with pipelines for chilled and warm water, with the end of the latter installed in the lower part of the accumulator heat exchanger, characterized in that in order to increase the cooling efficiency of milk due to the intensification of cold storage in the heat exchanger , battery-heat exchanger is made in the form of a heat-insulated antifreeze tank with cooling hatches located in the lower part of the tank in a battery heat exchanger placed with the possibility of free movement granules with an elastic shell, filled with water and having a density with frozen water below, and with unfrozen water - higher than the antifreeze density, while the end of the chilled water pipeline is installed in the upper part of the heat exchanger battery and communicated by pipeline with the end of the warm water pipeline 2. The device pop 1 is different in that it is concentric to tuboprode A funnel is placed at the bottom of the battery-heat exchanger and a guide cone is installed at the bottom of the accumulator heat exchanger. figure 1 ft V4 VVYY VNN Cold Schmo SSFSB P Soffo Fig2