Management And Optimization Of Steam Turbine Online Life Started

In order to guarantee the swift and safe start-up of intermediate pressure cylinder and improve the economical operation, according the operation characters and structures of the large-scale units, this paper deeply researches the life management of turbine rotors.Based on the off-line finite element analysis of turbine rotors, the rotor stress monitor and life management system is built up and on-line application software developed. The paper thoroughly introduces the temperature field and stress field on the dangerous cross-section of the rotor and the computing methods of life-loss and puts forward some viewpoints on the improvement of on-line life stat. It commits some elementary researches on optimized start-up of steam-turbine generators, basic principles of intermediate pressure cylinder start-up and also analysis according some example.The system has been put into use on the No.2 unit of Beilun Power Plant. It can effectively direct the practical start-stop operations which meets the purpose of operational optimization.