SU1395916A1 - Freezing chamber - Google Patents

Abstract

The invention relates to the field of refrigeration, in particular, to household freezers, and reduces energy consumption during its operation by reducing the unevenness of the temperature field in the freezer. The refrigeration unit cools the freezer compartment of the refrigerant supply through channel 4, located on active working planes 5,6,7 and 8 of the E-shaped rolling-welded evaporator 3. Supply and discharge of refrigerant to channel 4, performed in plane 8, It is provided through connecting channels located on the lintels 9 of the vertical plane 7. During operation, due to natural convection, warm air rises to the upper part of the freezing chamber and is cooled by the upper plane 5. Lowering convective flow the spirit is additionally cooled by the middle plane 8 with an incomplete active surface. 3 il. with S (L

Description

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The invention relates to refrigeration engineering, in particular, to household freezers.

The purpose of the invention is to reduce energy consumption by decreasing the unevenness of the temperature of the floor in the freezer.

FIG. 1 schematically shows the proposed freezer, longitudinal 1 cut; in fig. 2 - the same cross section; in fig. 3 - rolling-c; vaporizer, axonometric projection.

The freezer contains a freezer 1; amer 1, a refrigeration unit 2, an evaporator 3, placed in the freezer Chamber 1 and made in the form of an E-shaped rolling-welded plate with a serpentine channel 4 for circulating the refrigerant. The evaporator 3 includes the upper 5 and lower 6 horizontal globes, interconnected by the vertical plane 7, and the middle horizontal plane 8 formed by the lower portion of the vertical plane 7, cut and bent by 90 so that it lowers the intermediate position between the planes 5 and 6 . ; The proposed freezer works as follows. I The cooling unit 2 cools the freezing chamber 1 by supplying the refrigerant via a coil 4 located on the active working plane tHX 5,6,7 and 8 of the evaporator 3. The inlet of the refrigerant to the serpentine channel ij; a 4, is made in the plane 8, () is provided through the connecting Channels located on the lintels 9 of the vertical plane 7. During operation, due to natural convection, warm air rises to the top of the freezer compartment 1

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and is cooled by the upper plane 5 of the evaporator 3. The descending convective air flow is further cooled by the middle plane 8 with an incomplete active surface.

Thus, due to the fact that the upper plane 5 of the evaporator almost completely covers the cross section of the freezing chamber 1 in its upper, most heat-loaded part, and the plane 8 with an incomplete active surface is located in the middle, less heat-loaded part of the chamber 1, in the latter to- .. the temperature field is more uniform than the known freezer. At the same time, the temperature difference in the upper and lower parts of chamber 1 does not exceed, which makes it possible to shorten the operation time of the refrigeration unit, which is necessary to achieve the temperature set by the standard, and thereby reduce energy consumption during operation of the freezer. ka at 5-10%.

Invention Formula

The freezer containing the freezing chamber and an evaporator with a coil channel for the refrigerant located therein are made in the form of an E-shaped plate including one vertical and three horizontal planes, one of which is formed by a bent portion of the vertical plane, characterized in that in order to reduce energy consumption by reducing the irregularity of the temperature of the floor in the freezer, horizontal flat; A bone formed by a section of the vertical plane is located between the upper and lower planes of the evaporator.

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Claims (1)

A freezer containing a freezer and an evaporator arranged therein with a coil channel for refrigerant, made in the form of an E-shaped plate including one vertical and three horizontal planes, one of which is formed by a bent section of a vertical plane, characterized in that, for the purpose of reduce energy consumption by reducing the unevenness of the temperature field in the freezer, the horizontal plane: the bone formed by the vertical plane is located! between the upper and lower planes of the evaporator.