Abstract: A method for safety monitoring of a crack in a blade groove of an in-service nuclear turbine rotor includes: acquiring a phased array detection crack depth of the blade groove of the in-service nuclear turbine rotor; acquiring a stress corrosion crack propagation life, a low cycle fatigue crack propagation life and a high cycle fatigue crack propagation life based on the phased array detection crack depth; acquiring a crack propagation calendar life of the blade groove of the rotor based on the stress corrosion crack propagation life, the low cycle fatigue crack propagation life and the high cycle fatigue crack propagation life; and performing safety monitoring on the crack in the blade groove of the rotor based on the crack propagation calendar life.

Abstract: The present disclosure provides a method for predicting, monitoring and increasing reliability for an in-service nuclear power plant.

Abstract: The present disclosure provides a method of multi-objective and multi-dimensional online joint monitoring for a nuclear turbine. The method includes: obtaining first temperature monitoring data of the nuclear turbine by performing online thermal monitoring on a rotor, a valve cage and a cylinder of the nuclear turbine under quick starting-up; obtaining second temperature monitoring data of tightness of a flange association plane of the cylinder of the nuclear turbine by performing online thermal monitoring on the tightness of the flange association plane; obtaining operation monitoring data of a shafting vibration of a rotor and bearing system of the nuclear turbine by performing online safety monitoring on the shafting vibration of the rotor and bearing system; and optimizing operation and maintenance control of the nuclear turbine according to at least one type of monitoring data among the first temperature monitoring data, the second temperature monitoring data and the operation monitoring data.

Abstract: The present disclosure provides a method of multi-objective and multi-dimensional online joint monitoring for a nuclear turbine. The method includes: obtaining first temperature monitoring data of the nuclear turbine by performing online thermal monitoring on a rotor, a valve cage and a cylinder of the nuclear turbine under quick starting-up; obtaining second temperature monitoring data of tightness of a flange association plane of the cylinder of the nuclear turbine by performing online thermal monitoring on the tightness of the flange association plane; obtaining operation monitoring data of a shafting vibration of a rotor and bearing system of the nuclear turbine by performing online safety monitoring on the shafting vibration of the rotor and bearing system; and optimizing operation and maintenance control of the nuclear turbine according to at least one type of monitoring data among the first temperature monitoring data, the second temperature monitoring data and the operation monitoring data.