As an important equipment in the secondary circuit,the main defect of the high-pressure feed water heater is pitting corrosion on the outer wall.If there is a defect near the support plate,the defect signal will be greatly disturbed by the support plate,affecting the accurate evaluation of defects.This article confirms the specific influence range of the support plate through experiments,discusses the accuracy of defect detection results within this influence range,and provides certain suggestions.
H igh pressure feed water heaterSupport plateDefect signalMain frequencyMixing
NETL
NSTL
万方数据
