Life-extension evaluation method for overall equipment system of thermal power turbine unit

The invention discloses a life-extension evaluation method for an overall equipment system of a thermal power turbine unit. By collecting and analyzing technical data such as relevant design, manufacturing, operation, overhauling, inspection and technical improvement of unit key components, the service safety and the residual life of the thermal power unit key components and equipment are comprehensively evaluated and analyzed according to the relevant standard, and the life situation of the power plant overall system comprising a boiler, a turbine, a generator and other system equipment is thoroughly grasped. Through careful planning, strict evaluation, and monitoring analysis and transformation strengthening, the thermal power unit is subjected to comprehensive life-extension evaluationby synthesizing the content of the aspects such as unit performance, the rotor and key component life, component material inspection and electrical and thermal elements. The newly-built unit investment can be avoided and save