Air-conditioning refrigeration circulating system and air conditioner

Abstract

The invention belongs to the technical field of air conditioners and particularly relates to an air-conditioning refrigeration circulating system and an air conditioner. In order to improve the air-conditioning refrigeration circulating effect and reduce the energy consumption, the system comprises a compressor in series connection with a main loop, an outdoor heat exchanger, a first throttling device and indoor heat exchanger; a first gas-liquid separator is further in series connection with the main loop; a bypass loop is arranged between the first gas-liquid separator and the compressor; after a cold medium flowing out of the outdoor heat exchanger flows into the first gas-liquid separator through the first throttling device, a gaseous cold medium flows to the compressor along the bypass loop, and a liquid cold medium flows to the indoor heat exchanger along the main loop. By the aid of the system and the air conditioner, the pressure drop loss of the gaseous cold medium in the system is low, the energy consumption of the system is reduced, meanwhile, the return gas pressure of the system can be increased, and the exhaust pressure and the condensing temperature of the system areincreased, so that the heat convection temperature difference of the cold medium in the outdoor heat exchanger is increased, and the purpose of increasing the refrigerating capacity of the system isachieved.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and in particular relates to an air conditioner refrigeration cycle system and an air conditioner. Background technique [0002] The existing air-conditioning refrigeration cycle system usually consists of a condenser, a throttling device, an evaporator, and a compressor to form a refrigeration cycle loop. It flows into a low-temperature and low-pressure liquid, and then enters the evaporator to absorb heat and evaporate to complete the refrigeration cycle. [0003] Refrigerant flows in the air-conditioning refrigeration cycle system, which has the physical characteristics of latent heat of vaporization and specific heat capacity at equal pressure, and participates in heat exchange with the environment. The cooling capacity per unit mass of a refrigerant is an important performance characteristic, meaning that the more mass a refrigerant has to a certain extent, the better the cooling o...

AI Technical Summary

Problems solved by technology

In addition, the pressure drop of gaseous refrigerant in the pipeline is large, which is the main source of system cycle pressure loss, which will increase the amount of cycle work, that is, increase the energy consumption of the refrigeration cycle system

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