SU1515013A1 - Container for freezing and storing products in refrigerating chamber - Google Patents

Abstract

The invention relates to refrigeration equipment, namely, containers for freezing and storing products, and can be used in industrial and domestic refrigeration units. The aim of the invention is to improve the usability when removing the container from the chamber. The container with the products is placed in a freezer with a negative temperature. On a metal tape 3 with a rough electro- and corrosion-protective coating applied in the form of a coil on the outer surface of the body 1, a snow coat will accumulate. In this case, frost 6 between the walls of the evaporator 4 and the housing 1 is not formed by a continuous layer, but by bridges, which are easily destroyed by passing current through the tape 3, which facilitates the removal of the container from the freezer compartment. 3 il.

Description

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The invention relates to refrigeration engineering, in particular, to containers for freezing and storing products, and can be used in industrial and domestic refrigeration units.

The purpose of the invention is to improve ease of use when removing the container from the chamber,

FIG. 1 shows a container, a general view; in fig. 2 - a fragment of a container with a tape placed on its side wall; in fig. 3 is a diagram of connecting the container to the refrigeration unit.

The container includes a housing 1, made of heat-resistant plastic, and covered with a film of a polymeric material with low adhesion to ice (not shown).

The container is equipped with a shaper 2 layer of ice and its warming, which is a metal tape 3, applied as a coil on the outer surface of the housing 1, adjacent to the evaporator 4. The tape 3 can be applied, for example, on horizontal shoulders 5 of the housing 1.

The tape is made of a high ohmic resistance alloy, such as stainless steel, and is coated with an electrical and corrosion-resistant coating (film) of a polymeric material, such as epoxy, with a thickness of about 10-15 microns. With this, for a significant increase in the adhesion value of such a protective coating, its surface is rough and contributes to adhering of ice 6. In addition, the lengths of tape 3 can also serve as supporting planes of the runners 7 of container 1. Former 2 has current leads 8 for connection via a detachable connector - Step 9. For this purpose, for example, on the front wall of the housing 1 it is possible to place the pin of the detachable joint 9, and install the sockets on the inner surface of the freezer compartment door. In this case, when opening the door The ice shaper 2 has the ability to disconnect from the external supply circuit, while providing electrical safety conditions for extracting 1 liter of ice from the freezer compartment.

As an external supply circuit can be used electrically.

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scheme of the refrigeration unit, namely the supply circuit of the working winding of the single-phase engine 10 of the compressor.

In this case, the shaper of 2 layers of ice and its warming up is included in this chain successively at the time of preparation for the removal of the container. To ensure these conditions, the circuit is provided with a locking button 11 with latching, the normally closed contacts of which are installed parallel to the jacks of the plug connection 9, and the normally open contacts parallel to the contacts of the temperature switch 12.

The circuit of the refrigeration unit also includes a start-up relay 13.

The container is operated as follows.

The loaded product container is placed in a freezer compartment, in which a predetermined negative temperature is installed and automatically maintained. Shaper 2 is connected via a detachable connection 9 to an external supply circuit. In this case, the driver 2 is included in the circuit of the working winding of the single-phase motor 10 of the refrigeration unit.

Button 11 is in the initial state, while its normally closed contacts short-circuit the former of a 2 layer of ice and its warming up.

Products in the container are cooled and frozen.

When stored on the walls of the evaporator 4 snow-lip accumulates. In addition, snow yutube accumulates on the plane of the tape 3, because it is placed horizontally and the adhesion value of the protective film of the tapes 3 is significantly Bbmie than the polymer film of the housing 1. Due to the fact that the deposition of freezing moisture occurs more intensively on the horizontal surface of the stitched coatings of the tapes 3 (they seem to attract it), then the frost 6 between the walls of the evaporator 4 and the container body 1 is not collected by a continuous crust, filling the free gap, but by bridges along the tape 3 of the former 2 ice layer (FIG. 2)

To release containers from ice captivity, it is necessary to flood the bridges of frozen moisture. Heat is applied by passing

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current ON the metal tape 3, the current at this moment function of ice heating. The current flow time is not more than a few minutes. Due to the directional direction of heat to the freezing sites, power consumption is insignificant,

In this case, one of the most important advantages of electric heating is realized - heat concentration near the surface of the former 2 layers of ice and its warming up. As a result, heat is supplied and not the entire volume of the freezer compartment is heated, but only the selected surfaces on which ice adheres. The areas of these surfaces are small in comparison with the full surface of the walls of the container.

In this case, when the former 2 is included in the working winding circuit of the single-phase motor 10 of the refrigeration unit, preparations for extracting the waste container are described as follows.

The thermostat knob of the temperature is set to the position of setting a higher negative temperature. After that, by turning on the ijrcp button 11, the world-2 is inserted into the supply circuit of the working winding of the engine 10, and the contacts of the relay 12 te fflate are closed. In this case, the engine 10 of the compressor is forcibly turned on;

After a few minutes, returning the 1Гв button to the initial position, de-energize the driver 2

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and remove the container from the freezer. The engine will work until it compensates for the inflow of heat and the cooling unit does not reach the new set temperature. After that, the thermostat knob should be returned to its previous position.

Due to the fact that the cooling capacity of the aggregates significantly exceeds the heat inflow, the engine 10 of the compressor switches off quickly enough,

In cold installations of higher consumer properties, the cooling and heating process can be controlled by a 1S1 microprocessor controller. In this case,

more economical work of the aggregate

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 With the use of P and the proposed container, convenience is provided when removing it from the chamber,

Claims (1)

Invention Formula The container for freezing and storing food in the refrigerating chamber, the casing of which is covered with a material with weak adhesion to ice, is soothed and so that, in order to improve usability when removing the container from the chamber, it is equipped with shaper layer of ice and its warming, which is a metal tape with a rough electrical and corrosion protection coating and current leads for connection to power supply circuit of the refrigerating chamber, applied in the form of a coil on the surface of the housing. (puP.i Submarine P Fig.Z