Alarm system for subway central air-conditioning system

The invention discloses an alarm system for a subway central air-conditioning system. The alarm system comprises a sub-health alarm device, a fault alarm device and a sensor multi-point consistency early warning device, and the sub-health alarm device comprises a host alarm module, a water pump alarm module and a cooling tower alarm module. By means of the mode, abnormal operation of the subway central air-conditioning system can be judged, fault alarming and sensor multi-point consistency early warning can be conducted, alarming on the metro central air-conditioning system is comprehensively and perfectly achieved, the daily operation and maintenance level of the subway central air-conditioning system is greatly improved, and the cooling reliability is guaranteed. The alarm system can remind operation and maintenance personnel to maintain the equipment, the labor intensity of the operation and maintenance personnel is reduced, and intelligent operation and maintenance and intelligent professional management