System and method for supervising and diagnosing chemical working conditions of nuclear power plant

The invention belongs to the field of nuclear power plant chemical management, and particularly relates to a nuclear power plant chemical condition supervision and diagnosis system and method, and the system comprises a data collection module, a data processing module, and a data control module. The data acquisition module acquires chemical related data from a nuclear power plant process system; the data control module sets a judgment criterion of each data exception from two aspects of threshold exceeding and data trend value exception, and sets a reason checking measure and a control measure for each abnormal data; the data processing module is used for screening, analyzing and processing the collected chemical related data according to a data exception judgment criterion, a reason checking measure and a control measure set by the data control module, determining abnormal data, a reason causing data exception and the control measure, and obtaining an analysis result. According to the invention, the timeline