Refrigeration circulating system

Abstract

A refrigeration circulating system is characterized in that the refrigeration circulating system comprises a compressor, a first heat exchanger, a refrigeration throttle device and a second heat exchanger, and further comprises a third heat exchanger, wherein the compressor, the first heat exchanger, the refrigeration throttle device and the second heat exchanger are sequentially connected; the outlet end of the first heat exchanger communicates with a first heat exchanging loop of the third heat exchanger, and the other end of the first heat exchanging loop is provided with a first branch circuit and a second branch circuit in a parallel connection mode; the first branch circuit communicates with the refrigeration throttle device; and the second branch circuit communicates with a second heat exchanging loop of the third heat exchanger through an auxiliary throttle device, and the other end of the second heat exchanging loop communicates with the compressor. The problem that in the prior art, the supercooling degree in a refrigeration system cannot be met is solved, and the refrigeration circulating system can increase the suction capacity of the compressor and increase the supercooling degree of a refrigerant in an evaporator.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a refrigeration cycle system. Background technique [0002] The refrigeration cycle is a cyclic process in which the refrigerant moves heat from a low-temperature object to a high-temperature object, thereby cooling the object below the ambient temperature and maintaining this low temperature. This process is realized by a refrigeration device. According to the second law of thermodynamics, it is impossible for heat to move from a low-temperature object to a high-temperature object automatically and without compensation. Therefore, mechanical energy (or thermal energy, etc.) must be provided to ensure isolation including low-temperature cold source, high-temperature heat source, and work source. The entropy of the system does not decrease. The refrigeration cycle consists of compression process, condensation process, expansion process and evaporation process. It is to use...

AI Technical Summary

Problems solved by technology

[0005] Therefore, in order to overcome the problem that the degree of subcooling in the refrigeration system cannot be satisfied in the prior art, a refrigeration cycle system that can increase the suction capacity of the compressor and improve the degree of subcooling of the refrigerant in the evaporator is provided.

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