RU2446679C2 - Device for use of natural cold - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, mainly for use in private subsidiary plots and farms, including pasture conditions, to cool the milk. The proposed device comprises a reservoir, the air-water heat exchanger located above it with a spray device, a camera, a tube, a coil. The milk is cooled by spraying droplets of water during its supply from the reservoir to the spray device and by countercurrent flow of air in the chamber with a pipe and slotted holes, adjustable by louvers. At the bottom of the chamber a reservoir is located - the battery of cold water, separated by a partition. The coil with the flow of milk after milking is installed in the chamber so that the upper coils are located in the spraying-cooling part of the chamber, heating its lower zone, which intensifies the flow of air from the chamber to the upper cold parts of the atmosphere, where the pipe is passing, and the bottom - in the reservoir-accumulator of cold water for final cooling of milk and subsequent drainage in a vacuum reservoir-thermos.

EFFECT: invention simplifies the design of the device, reduces power consumption for cooling the milk due to the effective use of natural resources.

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Description

The invention relates to agriculture, mainly for use in personal subsidiary and farms, including in pasture conditions.

Appointment of the device: cooling milk after milking in the summer-pasture period in non-electrified summer camps and in areas with intermittent power supply (figure 1).

A known installation for using natural cold, cooling milk thanks to an air-water heat exchanger and a plate cooler. The cooler by means of a piston mechanism communicates with a spray device of the heat exchanger (prototype RU 2243652 C2, 17/03/2003, A01J 9/04, A23c 3/04, F25D 1/00).

SUMMARY OF THE INVENTION

Installation for use on dairy farms when cooling milk using natural cold, containing a tank, an air-water heat exchanger located above it with a fan and a spray device, an expansion tank and a plate cooler in communication with the tank. At the outlet of the cooler, a water circuit switch with a slider is installed, which communicates with a spray device of the heat exchanger by means of a pneumatic cylinder. In this case, the control of the water circuit switch is carried out by means of a pulse tube through the expansion tank, the latter acts as a sensor and protects the tank from freezing water and its outages by supplying a sealed cover with a check valve and a vacuum gauge (RU 2243652 C2, 17/03/2003, A01J 9/04, A23c 3/04, F25D 1/00).

The invention as a prototype is an installation with an air-water heat exchanger, operating on the principle of using natural atmospheric cold.

The disadvantage of the above installation is the design complexity, the multi-linking of which reduces its reliability. In addition, heat exchange is carried out thanks to the air flow from the electric fan, and the movement of cold water from the tank is done using an electric pump, which does not meet the conditions of non-electrified pastures.

The objective of the present invention is the creation of an installation for cooling milk after milking in the absence of energy supply (for example, in pasture conditions), characterized by its simplicity of design, requiring minimal energy consumption due to the efficient use of natural resources.

The technical result of the invention is to simplify the design and reduce energy consumption due to the efficient use of natural resources.

This technical result is achieved by the fact that in the proposed installation, the cooling of milk after milking using natural cold is achieved by creating drip spray of water and cooling it with a counter-current flow of atmospheric air. A vacuum diaphragm pump draws water from a heat exchange tank and delivers it to a spray device to spray water in the chamber. The camera is a device for creating air draft in the form of a pipe in the upper part with slotted holes on the sides. These holes have the ability to control the flow area with the help of blinds. Due to this, the airflow intensity is adjusted. The sprayed water cooled by the principle of a tower drains down into a reservoir with cold water. A coil is installed in the chamber, part of the turns of which are located in the spray and cooling zone in the air flow of water (chamber heating zone), and part in the reservoir of cold water flowing down from above (turns of heat-transfer cooling of milk). Milk comes from the milking machines. After cooling, the milk is sent to a vacuum flask.

Installation for cooling milk using natural cold works as follows.

After milking at the pasture complex, milk from milking machines enters the coil 1 of the heat exchange chamber 2, with a cold water accumulator 3. Part of the turns of the coil 1 is in the heat exchange chamber 2, transferring the heat of freshly milked milk, heating the air of the chamber from below. At the top of the chamber there is a spraying device 4. Sprayed water flows down the inclined drains 5. A pipe is installed on the camera 6. Due to the air draft in the chamber, which is amplified due to the temperature difference between the heated air in the chamber from the upper turns of the coil 1 and cold air in the atmosphere where the pipe 6 is led out, the countercurrent formed cools the jet of sprayed water, which flows into the reservoir 3 with cold water. Due to heat transfer, the milk in the coils of the coil is cooled in the stream. The movement of milk is ensured by a vacuum supply from the vacuum pump, a vacuum pipe 7 connected by a control valve to a thermos tank 8, due to which it is stored. On the sides of the chamber 2 there are slots overlapped by shutters 9, which provide a change in the size of the bore to regulate the intensity of the air flow. The air-water heat exchange section of the chamber 2 is separated from the cold water tank by a partition 10, which at the same time is a funnel for draining cold water into the tank. The water supply to the sprayer 4 is carried out using a membrane vacuum pump 11, water is taken from the tank 3.

The advantage of this unit for using natural cold is milk cooling in the absence of electrical supply, due to the cooling of air and water sprayed in the chamber in the stream, which allows us to expand the time range not only in the cold season, but also in the summer period.

Claims (1)

Installation for use on dairy farms when cooling milk using natural cold, containing a reservoir, an air-water heat exchanger with a spray device located above it, characterized in that the cooling of milk is achieved by creating droplet atomization of water when it is supplied from the tank to the spray and cooling by counterflow air in a chamber having a pipe and lateral adjustable louvre slit openings, at the bottom of the chamber - a tank separated by a partition - a cold water accumulator s, and a coil is introduced into the chamber with a milk flow after milking and some of the turns with warm milk are in the spray-cooling part, heating its lower zone, which intensifies the air flow from the chamber to the upper cold parts of the atmosphere where the pipe leads, and the lower turns the coil is in a tank with cold water, where the final cooling takes place, and the milk stream is drained for storage into a vacuum tank - a thermos.

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