| 摘要 |
PROBLEM TO BE SOLVED: To provide the leakage inspection method of a heat exchanger tube capable of easily and quickly performing inspection, and surely detecting even a pin hole-like small defect.SOLUTION: The leakage inspection method of a heat exchanger tube includes: a drying process of drying the inside of the tubes of a heat exchanger constituted of a plurality of tubes and an outer shell surrounding those tubes; and a sensor insertion process of inserting a leakage inspection sensor which discolors due to its contact with fluid into each of the tubes in a state the inside of the outer shell, that is, the outside of the tubes is filled with fluid. |
