Monitoring and alarming method and system for electric furnace flue gas waste heat recovery equipment

The invention provides a monitoring and alarming method and system for electric furnace flue gas waste heat recovery equipment. The method comprises the following steps: acquiring first detection data of an inlet end of the electric furnace flue gas waste heat recovery equipment, and determining an alarm condition in a preset time period according to the first detection data of the inlet end; and within the preset time period, monitoring the electric furnace flue gas waste heat recovery equipment according to the second detection data of the inlet end, the third detection data of the outlet end and the alarm condition, and giving an alarm when the alarm condition is met. According to the method, the dynamic alarm condition is adopted, and the alarm condition suitable for the stage can be generated based on the flue gas operation condition of the current stage, so that the alarm accuracy is improved, and the probability of false alarm caused by the input fluctuation of the flue gas is effectively reduced. 本发明提