SU1307183A1 - Domestic two-compartment refrigerator - Google Patents

Abstract

The invention relates to refrigeration engineering, in particular, to household refrigerators with separate chambers for different temperatures of cooling and storing products, and reduces the energy consumption during its operation. The refrigerant from the compressor 3 through the condenser 4 through the high pressure line 11 enters the regenerative heat exchanger (FT) 5, from which it is supplied to the capillary tubes (QD) 6 and 8. Until the set temperature in the freezer (MK) 2 is reached, the heater 10 is turned off, and the refrigerant throttling in CT 8, is supplied to the low-temperature evaporator 9. From the latter, after taking heat from MK 2, the refrigerant through PT 5 through the low pressure line 12 enters the compressor 3 for recompression. In the initial period, the temperature in PT 5 is high, which prevents the refrigerant from flowing through CT 6 to the high-temperature evaporator 7. When the temperature in MC 2 reaches the specified value, heater 10 is turned on, which prevents the refrigerant from passing through CT 8, and the entire refrigerant flows through CT. 6 to the high-temperature evaporator 7, and then along the low pressure line 12 to the compressor 3. 1 sludge. (Oh cl so about -vj 00 so

Description

The invention relates to a refrigeration technique, namely to household refrigerators with separate chambers for different cooling and storage temperatures of products with controlled refrigerant supply to the evaporators of these chambers.

The purpose of the invention is to reduce energy consumption during operation of the refrigerator.

The drawing shows a diagram of the proposed household two-chamber refrigerator.

The household two-compartment refrigerator contains refrigerating and freezing chambers 1 and 2 and a refrigerating system including a compressor 3, a condenser 4j, a regenerative heat exchanger 5 with a capillary tube 6 inserted into it, connected to the communication line of the condenser 4 with the high-temperature evaporator 7 of the refrigerating chamber 1, capillary a tube 8 connected to the communication line of the condenser 4 with a low-temperature evaporator 9 of the freezing chamber 2, on which the heater 10 is installed, lines 11 and 12, respectively, of high and low pressure.

The proposed two-chamber refrigerator works as follows.

The refrigerant from the compressor 3 through the condenser 4 through the high-pressure line 11 enters the regenerative heat exchanger 5 and further is supplied to the capillary tubes 6 and 8. Until the set temperature in the freezer chamber 2 is reached, the heater 10 is disconnected and the refrigerant is throttled

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heat exchanger 5 is high, which prevents the refrigerant from flowing through the capillary tube 6 to the high-temperature evaporator 7.

When the temperature in the freezer compartment 2 reaches a predetermined value, the heater 10 is turned on, which prevents the refrigerant from passing through the capillary tube 8, i.e. the entire refrigerant flows through the capillary tube 6 to the high-temperature evaporator 7, and then through the low pressure line 12 to the compressor 3.

The use of the proposed domestic two-compartment refrigerator will reduce the electricity consumption during its operation due to the combination of the functions of the regenerative heat exchanger and the heater of the capillary tube in one node of the refrigeration system.

The regenerative heat exchanger also performs an additional function — regulating the supply of refrigerant to the high-temperature evaporator.

Claims (1)

Invention Formula thirty A household two-chamber refrigerator containing a refrigerating and freezing chambers with high and low temperature evaporators respectively installed, a compressor, a 35 condenser, capillary tubes connected in the communication lines of the condenser with a high and low temperature evaporators respectively, a heater and a regenerative heat exchanger. the capillary tube 8 is supplied to the low-mounted evaporator on the supply lines and from the temperature-free 9. From the evaporator 9 after the heat is taken from the freezing chamber 2, the refrigerant passes through a regenerative heat exchanger 5 through a low pressure 12. to compressor 3 for recompression. In the initial period the temperature Compiled by V. Chanturi Editor V. Kovtun Tehred V. Kadar Proofreader E. Roshko Order 1615/35 Circulation 476 Subscription VNNPI State Committee of the USSR Inventions and discoveries 113/35, Moscow, Zh-35, Raushsk nab. 4/5 Production and printing company, Uzhgorod, Projecto st., 4 five 0 five heat exchanger 5 is high, which prevents the refrigerant from flowing through the capillary tube 6 to the high-temperature evaporator 7. When the temperature in the freezer compartment 2 reaches a predetermined value, the heater 10 is turned on, which prevents the refrigerant from passing through the capillary tube 8, i.e. the entire refrigerant flows through the capillary tube 6 to the high-temperature evaporator 7, and then through the low pressure line 12 to the compressor 3. The use of the proposed domestic two-compartment refrigerator will reduce the electricity consumption during its operation due to the combination of the functions of the regenerative heat exchanger and the heater of the capillary tube in one node of the refrigeration system. The regenerative heat exchanger also performs an additional function — regulating the supply of refrigerant to the high-temperature evaporator. Invention Formula thirty A household two-chamber refrigerator containing a refrigerating and freezing chambers with high and low temperature evaporators respectively installed, a compressor, a 35 condenser, capillary tubes connected in the communication lines of the condenser with a high and low temperature evaporators respectively, a heater and a regenerative heat exchanger.  mounted on supply lines and from 45 coolant water of a low-temperature evaporator, characterized in that, in order to reduce energy consumption, a capillary tube on the communication line of a condenser with a high-temperature evaporator is placed inside a regenerative heat exchanger.