SYSTEM AND METHOD FOR MONITORING STEAM GENERATOR TUBE OPERATING CONDITIONS

摘要

A system for monitoring operating conditions of the steam generator tubes in a steam generator and a method for affixing a fiber optic sensing array to a steam generator tube is described. The system comprises a fiber optic sensing array disposed within a hermetical cable package, an emitter and photodetector for obtaining reflected wavelengths from the fiber optic sensors, and a central processing unit for converting the signal into the operating conditions. The method comprises cleaning a surface of a tube, affixing a guide tube to the tube surface, and threading a sensing cable package into the guide tube.