Non-azeotropic hydrocarbon self-cascading refrigeration cycle system for dual-temperature refrigerators

Abstract

A non-azeotropic hydrocarbon self-cascading refrigerating cycle system for a dual-temperature refrigerator, including a compressor, a compressor, a condenser, a dry filter, a first regenerator, a first capillary tube, and a cold room evaporator The outlet of the evaporator in the refrigerating room is connected to the inlet of the gas-liquid separator, and the outlet of the gas-liquid separator is divided into two paths, one path of saturated liquid refrigerant passes through the second capillary and is connected to the cold fluid inlet of the condensing evaporator, and the other path of saturated gaseous refrigerant The refrigerant is connected to the hot fluid inlet of the condensing evaporator, the hot fluid outlet of the condensing evaporator passes through the second regenerator and the third capillary, and then connects to the inlet of the evaporator in the freezing chamber, and the outlet of the refrigerating evaporator passes through the second regenerator and then connects with the condensing The cold fluid outlet of the evaporator is connected, and then connected to the inlet of the compressor through the first regenerator; the use of the temperature glide of the non-azeotropic mixture refrigerant and the characteristics of self-cascading cycle can effectively improve the dual-temperature refrigerator. The performance of the refrigeration cycle system promotes the development of energy-saving technology for household refrigerator products.

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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