Air replenishing and enthalpy increasing air conditioning system and air conditioner

Abstract

The embodiment of the invention discloses an air replenishing and enthalpy increasing air conditioning system and an air conditioner. The air replenishing and enthalpy increasing air conditioning system and the air conditioner are used for solving the problems that the air replenishing and enthalpy increasing air conditioning system generates periodic abnormal mechanical noise due to periodic pressure pulsation generated in an inner cavity of a compressor, and the air replenishing amount in an air replenishing loop cannot be flexibly controlled. The system comprises a compressor, the air replenishing loop and a control system. The air replenishing loop comprises a flash evaporator and a first electronic expansion valve. One end of the first electronic expansion valve is connected with an air replenishing opening of the compressor, and the other end of the first electronic expansion valve is connected with an air replenishing outlet of the flash evaporator. The first electronic expansion valve receives a control instruction sent by the control system. The opening degree of the first electronic expansion valve is adjusted according to the control instruction. The air replenishing and enthalpy increasing air conditioning system and the air conditioner are suitable for the technical field of air conditioning and refrigeration projects.

Description

technical field [0001] The invention relates to the technical field of air-conditioning and refrigeration engineering, in particular to an air-conditioning system for supplementing air and increasing enthalpy and an air conditioner. Background technique [0002] The supplementary air enthalpy air-conditioning system is widely used because of its ability to improve the cooling / heating effect. Air-enhancing air conditioning system refers to changing the ordinary compressor in the conventional air-conditioning system into a compressor with the function of air-increasing enthalpy (hereinafter referred to as "compressor"), and adding air on the basis of the main circuit The air conditioning system formed after the loop. [0003] Such as figure 1 Shown is a schematic structural diagram of an air-conditioning system for supplementing air and increasing enthalpy. Wherein, the supplementary air loop is made of flash evaporator 11 and solenoid valve 12; the main loop includes compr...

AI Technical Summary

Problems solved by technology

[0006] Since the inner chamber of the compressor 13 will generate periodic pressure pulsations during the refrigeration / heating cycle, therefore, in the above two cases, the periodic pressure pulsations will directly act on the spool of the solenoid valve 12, The spool of the solenoid valve 12 is pushed back and reset repeatedly, resulting in periodic abnormal mechanical noises in the air-supplementing and enthalpy-enhancing air conditioning system

In addition, the solenoid valve 12 only has the function of opening and closing, which makes it impossible to flexibly control the amount of air in the air supply circuit

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