ANTICORROSION SYSTEM OF NUCLEAR POWER PLANT

• Main Authors: SAITO YOSHIHISA, ABE YUMIKO, KANEKO TETSUJI, SAITO YOSHIAKI, YAMAOKA TETSUSHI
• Format: Patent
• Language: English
• Published: 16.05.2013
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR POWER PLANT; PHYSICS

PROBLEM TO BE SOLVED: To provide an injection system and a recycling system for a corrosion inhibitor in a circulatory system of reactor coolant in emergency so that the corrosion resistance of a reactor core internal structure and a reactor containment material is soundly maintained for a long period of time.SOLUTION: An anticorrosion system of nuclear power plant includes a coolant circulatory system of a reactor core, a corrosion inhibitor injection system 30 connected to the coolant circulatory system, and a recycling system 31 which is connected to the coolant circulatory system 30, and supplies a corrosion inhibitor separated from coolant of the coolant circulatory system with a corrosion inhibitor separation device 15 to the corrosion inhibitor injection system 30.