An Instrumental Acoustic System for Early Diagnosis of the Rupture of Tube Systems

摘要

The report describes the application of an acoustic method for the early detection of loss of fluid at high temperature in power plants. The technique is based upon monitoring in an appropriate frequency band the noise existing in fluid under pressure or in ambient gas in a tubing system. The technique has been validated with optimal success, particularly in the case of high pressure boilers in the boiler feed water of steam generating plants. The instrumental surveillance system is extremely simple. The typical results obtained both in the experimental phase and in the actual industrial version will be reported.