Mechanical flash air-conditioning refrigeration system and its working method

Abstract

The invention provides a mechanical flash air-conditioning and refrigeration system and a working method thereof, belonging to the technical field of refrigeration. The system uses water as the working medium. Compared with the conventional refrigeration system using freon as the working medium, the circulating working medium has no environmental hazards; the frozen water obtained by flash evaporation directly exchanges heat with the indoor air when the invention works, and the cooling capacity release only needs One-stage heat exchange, the cooling capacity loss of the system is small, and the operating conditions of the water vapor compressor are improved, the energy consumption of the water vapor compressor is reduced, and the system has a high refrigeration coefficient. The system of the present invention can adjust the frequency of the water vapor compressor during the low electricity price period at night, increase the flash cooling capacity of the system, store cold through the flash tank, and release the cooling capacity during the high electricity price period, which not only realizes the optimization of power resources Peak shifting and valley filling, while reducing the operating costs of the system. The mechanical flash air-conditioning and refrigeration system of the present invention has the characteristics of energy saving, environmental protection and the like.

Description

technical field [0001] The invention relates to an air-conditioning and refrigeration system, in particular to a mechanical flash-type air-conditioning and refrigeration system and its working method, belonging to the technical field of refrigeration. Background technique [0002] At present, vapor compression water-cooling units are widely used in the field of air-conditioning and refrigeration. The chillers require indirect heat exchange with indoor air at the user's end through circulating chilled water. When the system is running, the loss of cooling capacity is large, and the energy consumption of the unit is high. In addition, most chillers use hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs) as refrigerants. The vibration of the unit during operation often leads to the leakage of refrigerant. The HCFCs leaked into the atmosphere will naturally decompose and destroy the ozone layer under the action of sunlight. Although HFCs refrigerants will not destroy ...

AI Technical Summary

Problems solved by technology

[0002] At present, vapor compression water-cooling units are widely used in the field of air-conditioning and refrigeration. The chillers require indirect heat exchange with indoor air at the user's end through circulating chilled water. When the system is running, the loss of cooling capacity is large, and the energy consumption of the unit is high.

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