SU1479801A1 - Domestic freezer evaporator - Google Patents

Abstract

The invention relates to refrigeration equipment, namely, evaporators of a domestic freezer. The purpose of the invention is to reduce power consumption by providing a uniform temperature floor in the freezer volume. During operation of the freezer, the liquid refrigerant from the condenser 7 enters the second section of the second evaporator from above, then into its lower section 4, and then into the upper section. In the process of passing through the coils of the evaporator, the refrigerant boils, absorbing heat from the freezing chamber and ensuring the uniformity of the temperature field in its volume. The vapors formed during the boiling process, together with the remaining liquid refrigerant, enter the intermediate coil section located above the lower section, and then are diverted to the compressor 9 of the domestic freezer refrigeration machine. 2 Il.

Description

(21) 4177923 / 28-13

(22) 01/09/87

(46) 05/15/89. Bul Number 18

(72) V.Ya. Gavrilov, J.L. Native

and.G.A. Kulagin

(53) 621.565 (088.8)

(56) Patent of Great Britain No. 1375395, cl. F 25 V 39/02, published. 1974.

Patent of Germany No. 3247518, cl. F 25 D 11/00, published 1984

(54) EVAPORATOR OF A HOUSEHOLD FREEZER

(57) The invention relates to refrigeration equipment, namely, to an evaporator of a domestic freezer. The purpose of the invention is to reduce energy consumption by providing a uniform temperature field in the volume

freezer. During operation of the freezer, the liquid refrigerant from the condenser 7 enters the second section of the second evaporator from above, then into its lower section 4, and then into the upper section. In the process of passing through the coils of the evaporator, the refrigerant boils, absorbing heat from the freezing chamber and ensuring the uniformity of the temperature field in its volume. The vapors formed during the boiling process, together with the remaining liquid refrigerant, enter the intermediate coil section located above the lower section, and then are diverted to the compressor 9 of the domestic freezer refrigeration machine. 2 Il.

(L

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CO 00

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The invention relates to refrigeration equipment, namely, evaporators of a domestic freezer.

The purpose of the invention is to reduce power consumption by providing a uniform temperature floor in the freezer volume.

FIG. 1. The evaporator of a domestic freezer is schematically shown; in fig. 2 - a household freezer with an evaporator placed in it.

The domestic freezer evaporator contains several horizontal coil sections for circulating the refrigerant placed one above the other: the upper section 1, the second section above it, the intermediate section 3 and the lower section 4, interconnected by channels 5 for circulating the refrigerant. Channel 6 for the entrance of liquid refrigerant from the condenser 7 of the cooling machine of a household freezer is connected to the second section 2 above, the output of which is connected to the entrance of the lower section 4, the output of which is last connected to the entrance of the upper section 1, and its output - with intermediate section 3 placed over the bottom section 4. Through the channel 8, the vapor refrigerant is discharged from the evaporator to the compressor 9 of the refrigerating machine.

Evaporator domestic freezer works as follows.

The liquid refrigerant from the condenser enters the second section of the upper evaporator 2, then into its lower section 4, then into the upper section 1, - and then into the intermediate section 3. In the process of passing through the coils

The vaporizer refrigerant boils, absorbing heat from the volume of the freezer and cooling it. The vapors formed during boiling together with the remaining boiling away liquid refrigerant flow into the intermediate coil section 3 and from there to the compressor 9.

In the proposed household freezer evaporator, the uneven temperature of the floor over the volume of the freezing chamber does not exceed 2.5 ° C (in the known device up to 5 ° C), and the temperature at the same points of the chamber varies by no more than 0.5 C. Therefore, in comparison with the known device in the proposed coefficient of working time is reduced from 0.5 to 0.31, the power consumption is reduced by 15-20%.

Formula

and h

gaining

A domestic freezer evaporator containing horizontal coil sections placed one above the other and interconnected by channels for circulating refrigerant, characterized in that, in order to reduce power consumption by providing a uniform temperature field in the freezer, the refrigerant inlet channel is connected to the second the top of the section, the output of which is connected to the entrance of the lower section, while the output of the latter is in communication with the entrance of the upper section, and the output of this section is connected to an intermediate section located above bottom.

FIG. I

Claims (1)

Claim A household freezer evaporator containing horizontal coil sections placed one above the other and communicated with each other by channels for refrigerant circulation, characterized in that, in order to reduce energy consumption by ensuring a uniform temperature field in the volume of the freezer, the refrigerant inlet channel is connected to the second section from above , the output of which is connected to the input of the lower section, while the output of the latter is communicated with the input of the upper section, and the output of this section with the intermediate section located above bo ttom. fig f