Prediction method and device for change trend of fouling thermal resistance of condenser, equipment and medium

The invention provides a condenser fouling thermal resistance change trend prediction method and device, equipment and a medium, and the prediction method comprises the steps: obtaining first historical operation data of a nuclear power unit in a first preset time period, the first historical operation data comprising state parameters of nuclear power cold end equipment and the use frequency of condenser cleaning equipment; selecting a first target model from a plurality of preset prediction models according to the state parameters and the use times, and training the first target model; and utilizing the trained first target model to predict the change trend of the fouling thermal resistance of the condenser. According to the method, the first target model is selected from the plurality of preset prediction models through the state parameters and the use times, and the first target model is trained, so that the prediction model can be selected in a targeted manner according to the historical data, and the pur