Ammonia and ethylene glycol refrigerant refrigeration system

Working principle of NH3 refrigeration+ethylene glycol refrigeration composite system
The entire equipment is divided into two independent closed cycle units: the ammonia refrigerant circulation system and the ethylene glycol aqueous solution cooling circulation system. The two sets of circuit media are not mixed with each other and only rely on plate heat exchangers to complete heat exchange.
The ammonia refrigeration side completes the basic refrigeration cycle, releasing cooling capacity inside the plate heat exchanger and continuously cooling the ethylene glycol solution; Low temperature ethylene glycol is transported by a circulating pump to the evaporator inside the cold storage. All heat loads, including heat from the enclosure structure of the warehouse, heat from goods entering the warehouse, ventilation through doors, and equipment lighting, are transferred to the ethylene glycol refrigerant through the evaporator inside the warehouse.
The heated ethylene glycol flows back to the plate heat exchanger, transferring all the absorbed heat to the ammonia side circulation; The ammonia system then transfers heat to the outdoor condenser and releases it to the external environment through air/water cooling, thereby continuously maintaining a low temperature environment in the warehouse. Two independent circuits separate the refrigerant from the storage area, greatly improving the on-site safety level.