Three-time throttling enthalpy-increasing double-condensation refrigeration system, air conditioner and control method

Abstract

The invention provides a three-time throttling enthalpy-increasing double-condensation refrigeration system, an air conditioner and a control method. The refrigeration system comprises a compressor, an evaporator, a primary condenser, a secondary condenser, a first throttling device and a second throttling device, the primary condenser is connected with an outlet of the compressor, and an outlet of the primary condenser is connected with an inlet of the secondary condenser; and a flash evaporator is further arranged between the first throttling device and the secondary condenser, an inlet pipeline of the flash evaporator communicates with the first throttling device, a liquid outlet pipeline of the flash evaporator communicates with the secondary condenser, a gas outlet pipeline of the flash evaporator communicates with a gas supplementing port of the compressor, and a sixth throttling device is further arranged on the liquid outlet pipeline. According to the refrigeration system, theair conditioner and the control method, compared with a one-time throttling refrigeration circulating system and a two-time throttling refrigeration circulating system, the heating capacity, the cooling capacity, the heating performance coefficient and the refrigeration performance coefficient of the system are greatly improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a three-time throttling and enthalpy increasing double-condensing refrigeration system, an air conditioner and a control method. Background technique [0002] In the prior art, the energy consumption of air conditioners accounts for a large proportion of the total energy consumption of buildings. How to further improve the performance coefficient of air conditioners and reduce the energy consumption of air conditioners has become the trend of the air conditioner industry. The conventional throttling refrigeration cycle system has limited evaporation pressure and condensation pressure, small cooling capacity and heating capacity, but not low compression power consumption, and it is difficult to further improve the performance coefficient of the system. One-time throttling refrigeration cycle adopts one-time throttling. The throttling degree of this cycle is limited, so th...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the air conditioner in the prior art that the heating / cooling performance coefficient of the primary throttling refrigeration cycle system is low, thereby providing a triple throttling enthalpy increasing double-condensing refrigeration system, Air conditioner and control method

Images