Intelligent, efficient, energy-saving and environment-friendly Freon, ammonia and carbon dioxide cascade refrigeration system

Abstract

The invention relates to the technical field of cascade refrigeration systems, in particular to an intelligent, efficient, energy-saving and environment-friendly Freon, ammonia and carbon dioxide cascade refrigeration system. An intelligent, efficient, energy-saving and environment-friendly Freon, ammonia and carbon dioxide cascade refrigeration system comprises a first-stage refrigeration system, a second-stage refrigeration system and a third-stage refrigeration system which are sequentially connected in an overlapped mode. The intelligent, efficient, energy-saving and environment-friendly Freon, ammonia and carbon dioxide cascade refrigerating system further comprises a deicing device. The deicing device comprises a rotating ring, a plurality of cutting boards, a plurality of crushing cutter sets, a driving mechanism and a plurality of advancing wheels. By arranging the deicing device, when the outer surface of the evaporator is iced, the cutting mode is adjusted in a self-adaptive mode according to different frost hardness, under the condition that the frost hardness is low, the rotating ring of the deicing device is high in walking speed and high in crushing efficiency, and under the condition that the frost hardness is high, the frost crushing force is increased; and frost with high hardness can be cut and crushed.

Description

technical field [0001] The invention relates to the technical field of cascade refrigeration systems, in particular to an intelligent, high-efficiency, energy-saving and environment-friendly Freon, ammonia and carbon dioxide cascade refrigeration system. Background technique [0002] The cascade refrigeration cycle is to divide the large total temperature difference into two or several sections, select the appropriate refrigerant cycle according to the temperature zone of each section, and then superimpose them, and use the cooling capacity of the high temperature level to undertake the cooling capacity of the low temperature level. Condensation load, thereby obtaining a lower cooling temperature. The freon, ammonia and carbon dioxide cascade refrigeration system uses freon, ammonia and carbon dioxide as refrigerants respectively. This refrigeration cycle can achieve a cooling temperature as low as -140°C under the premise of normal working pressure range and pressure ratio....

AI Technical Summary

Problems solved by technology

[0003] The invention provides an intelligent high-efficiency, energy-saving and environment-friendly Freon, ammonia and carbon dioxide cascade refrigeration system to solve the problem that the outer wall of the evaporator in the existing cascade refrigeration system is affected by heat exchange due to icing

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