Non-azeotropic hydrocarbon mixture automatic overlapping refrigerating cycle system for double-temperature refrigerator

Abstract

A non-azeotropic hydrocarbon mixture automatic overlapping refrigerating cycle system for a double-temperature refrigerator comprises a compressor, the compressor, a condenser, a dry filter, a first heat returning device, a first capillary tube and a refrigerating chamber evaporator are sequentially connected, an outlet of the refrigerating chamber evaporator is connected with an inlet of a gas-liquid separator, an outlet of the gas-liquid separator is divided into two paths, a saturation liquid state cooling agent in one path passes a second capillary tube to be connected with a cooling fluid inlet of a condensation evaporator, a saturation liquid state cooling agent in the other path is connected to a hot fluid inlet of the condensation evaporator, a hot liquid outlet of the condensation evaporator passes a second heat returning device and a third capillary tube to be connected with an inlet of a freezing chamber evaporator, and an outlet of the freezing chamber evaporator passes the second heat returning device to be connected with a cold fluid outlet of the condensation evaporator and then passes the first heat returning device to be connected with an inlet of the compressor. The performance of the refrigerating cycle system of the double-temperature refrigerator is effectively improved by utilizing the temperature glide and the achievable automatic overlapping cycle characteristic of the non-azeotropic mixture cooling agent, and the development of the energy-saving technology of household refrigerator products is promoted.

Description

technical field [0001] The invention belongs to the technical field of refrigerator refrigeration, and in particular relates to a non-azeotropic hydrocarbon mixture self-cascading refrigeration cycle system for a dual-temperature refrigerator. Background technique [0002] With the continuous rapid development of science, technology and economy in our country, people have put forward new requirements for the quality of life and living standards, so that the technology of refrigerators is also constantly developing towards the direction of energy saving, environmental protection and intelligence. The advancement of refrigerator technology and the improvement of energy efficiency standards have also made the use of new energy-saving technologies to improve the refrigeration efficiency of refrigerators and reduce the power consumption of refrigerators has become the focus of the development of the industry. In addition, the use of natural environmentally friendly refrigerants (...

AI Technical Summary

Problems solved by technology

Due to the high temperature in the refrigerating room, the single evaporating temperature is relatively low, resulting in a large heat transfer temperature difference of the evaporator in the refrigerating room, and significant irreversible heat transfer loss, which reduces the cooling efficiency of the circulation system.

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