The central air-conditioning system is mainly composed of a refrigerator, a cooling water circulation system, a chilled water circulation system, a fan coil system and a cooling water tower. The refrigerant is compressed into a liquid by a refrigerator through a compressor and the heat is exchanged with the frozen water in the evaporator after the refrigerant is compressed into a liquid. The chilled water is refrigerated, and the chilled water is sent by the chilled water pump to the cooling coil in the air of each fan, and the cold air is blown by the fan to achieve the purpose of cooling down. After evaporating, the refrigerant releases heat in the condenser and carries out heat exchange with the cooling circulating water. The cooling pump that brings heat is sent by the cooling pump to the cooling tower for spray cooling by the tower fan, and the heat is exchanged between the cooling water and the atmosphere. Radiating heat into the atmosphere.
The central air-conditioning system is a huge equipment group. The central air-conditioning group control system designed and developed by our company can be used to monitor the operation status and faults of the chillers. Remotely setting the outlet temperature and full load current of the chilled water of the chiller, starting and stopping the chiller by remote control, monitoring the status of the chilled water pump and cooling tower, It can also adjust the pressure difference, monitor the temperature of total return water of cooling water, monitor the operation situation of frozen water in each branch, the electric butterfly valve of cooling water circuit and the fresh air conditioning unit, etc., and can also adjust the pressure difference, monitor the temperature of the total return water of cooling water, and monitor the operation situation of the electric butterfly valve of the cooling water circuit and the fresh air conditioning unit, etc. It can meet the requirements of centralized monitoring, remote monitoring and debugging, humanized alarm, alarm record query, database query, export and print, information logging and other functions.