Research Of Condition Inspection And Life Assessment On The High Temperature Superheater And Reheater Of Boiler

The condition of high temperature superheater and reheater is the badist in the tube of boiler. Whether they run safely and stably or not is directly count for much the safe of the whole plant operation. The logical Condition Inspection and Life Assessment, Which will redound to the economy benefits and society benefits of the power piant.This paper discusses the mechanism of lifetime wastage of high temperature superheater and reheater. It indicated that the creep and the corrosion and the abrasion and the fatigue are the main causes of the life wastage, And it is confirmed the operation temperature and the pressure and the service time are the main factors of the lapse.Life assessment of the high temperature superheater and reheater of xinhai power plant has been performed from nondestructive and destructive examinations; the method of life assessment was established. The remainder lifetime of high temperature superheater and reheater was evaluated with the new method of intensity distribution, And building the life distributing chart of the whole parts to the effect that guiding availably the locale examine and repair.