System, method and equipment for predicting flue gas amount at inlet of SCR reactor under variable load

The invention discloses a system, method and equipment for predicting the flue gas amount at inlet of SCR reactor under a variable load, and the system comprises: a data reading module which reads theload data of a unit, and carries out the preprocessing and storage of operation data; a load judgment module which is used for judging a pre-divided load interval range to which the unit load belongsaccording to the unit load data, and sending the unit load data corresponding to different unit loads to the flue gas quantity prediction models in different load interval ranges in the flue gas quantity training module; a smoke quantity training module which is used for training according to the unit load data to obtain a plurality of smoke quantity prediction models in different load interval ranges, sending the unit load data corresponding to different unit loads to the smoke quantity prediction models in the corresponding load interval ranges, and obtaining smoke quantity prediction results output by the smoke qua