Compressing and injecting mixed cycle refrigerating method and device for electric refrigerator

Abstract

Refrigerator compression / jet mixed cycle refrigeration method and device, is to connect an ejector between the outlets of the two evaporators in the refrigerator compartment and the freezer compartment and the return air pipe of the compressor, and connect the two evaporators in the refrigerator compartment and the freezer compartment The two refrigerants with different pressures are mixed with each other to form a mixed fluid with moderate pressure and enter the return air pipe of the compressor, thereby increasing the return air pressure of the compressor, reducing the pressure ratio, and improving the refrigeration performance of the compressor. The invention has the advantages of simple structure, easy manufacture, low cost, reliable operation, and is suitable for connecting with various types of refrigerator system pipelines, so as to improve the uniformity and effective controllability of the temperature in the refrigerating chamber of the refrigerator, and reduce the The large heat transfer temperature difference causes considerable loss of available energy, so as to achieve the purpose of energy saving of the refrigerator, and is suitable for industrial production.

Description

technical field [0001] The invention discloses a refrigerator cycle refrigeration method and device, in particular to a refrigerator compression / jetting mixed cycle refrigeration method and device. Background technique [0002] Along with popularizing of household electrical appliances, the energy-saving problem of household electric refrigerator is more and more paid close attention to. At present, household refrigerators at home and abroad basically use capillary tubes for throttling. In ordinary dual-temperature refrigerators, the refrigerant after capillary throttling enters the evaporators of the freezer and refrigerator in turn, and passes through the same evaporation temperature (approximately - 29°C) to maintain the temperature of the freezer (-18°C) and the temperature of the refrigerator (5°C), because the large heat transfer temperature difference in the refrigerator will cause considerable loss of available energy. Warm refrigerators are even more serious. Ther...

AI Technical Summary

Problems solved by technology

At present, household refrigerators at home and abroad basically use capillary tubes for throttling. In ordinary dual-temperature refrigerators, the refrigerant after capillary throttling enters the evaporators of the freezer and refrigerator in turn, and passes through the same evaporation temperature (approximately - 29°C) to maintain the temperature of the freezer (-18°C) and the temperature of the refrigerator (5°C), because the large heat transfer temperature difference in the refrigerator will cause considerable loss of available energy. Warm refrigerator is more serious

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