Air conditioning system and coolant recycling method thereof

Abstract

The invention discloses an air conditioning system coolant recycling method. A compressor air exhausting opening of an air conditioning system is in serial connection with a one-way valve. When coolants leak or an air conditioner needs to be maintained, the air conditioning system coolant recycling method comprises the steps of sealing a coolant outlet pipeline of a condenser, detecting return air pressure of a compressor inlet in the air conditioning system, controlling a compressor to be stopped when the return air pressure reaches first preset cut-out pressure and sealing a coolant inlet pipeline of the condenser. The recycling method can recycle coolants of the system in time when the coolants leak or the air conditioner needs to be maintained and prevents the coolants from being discharged into external environment. Thus, the natural environment can be effectively protected, meanwhile health hazards of the coolants to maintaining workers are effectively eliminated, and economical loss caused by coolant waste is avoided. The invention further discloses an air conditioning system where the recycling method is applied.

Description

Technical field [0001] The invention relates to the technical field of air-conditioning production and manufacturing, in particular to an air-conditioning system and a method for recycling its refrigerant. Background technique [0002] Air-conditioning systems generally include compressors, condensers, throttling devices, and evaporators. These main components are connected by refrigerant pipelines to form an air-conditioning system. During air-conditioning transportation or air-conditioning operation, if you connect the main components Leakage of the refrigerant pipeline between the two will cause the entire air conditioning system to fail to continue working. [0003] In the current air-conditioning system, once the refrigerant pipeline leaks and needs to be repaired, the refrigerant cannot be effectively recovered. Usually, the refrigerant in the system can only be discharged into the external environment. This not only causes serious waste of refrigerant, but also The ozone la...

AI Technical Summary

Problems solved by technology

[0002] An air conditioning system generally includes main components such as a compressor, a condenser, a throttling device, and an evaporator. These main components are connected through refrigerant pipelines to form an air conditioning system. If there is a leak in the refrigerant pipeline between the rooms, the entire air conditioning system will not be able to continue to work.

[0003] In the current air-conditioning system, once the refrigerant pipeline leaks and needs to be repaired, the refrigerant cannot be recovered effectively, and the refrigerant in the system can only be discharged to the external environment, which not only causes a serious waste of refrigerant, but also It will cause damage to the ozone layer in the atmosphere to a certain extent, and when the maintenance personnel perform maintenance on the air-conditioning system, the refrigerant discharged into the external environment will also cause certain harm to the health of the maintenance personnel.

The repaired air conditioner needs to refill the system with refrigerant, which also causes certain economic losses for the users themselves.

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