Fault early warning method and device for chemical water treatment system

The invention provides a fault early warning detection method and equipment for a chemical water treatment system. The method comprises the following steps: collecting steam-water monitoring data generated by the chemical water treatment system in a water quality monitoring process; constructing a water quality monitoring and early warning model for the chemical water treatment system, and inputting the steam-water monitoring data into the water quality monitoring and early warning model; and determining a fault type of the chemical water treatment system according to an output result of the water quality monitoring and early warning model, and performing fault early warning. According to the invention, the mapping relation between the water quality change rule and the fault type can be constructed through data modeling, the accuracy of fault diagnosis can be obviously improved, and the repair and maintenance cost of the chemical water treatment system of the power plant is further reduced. 本发明提供了一种用于化学水处理系统的