Corrosion Fallure Reason on Chilled Water Pipe in Central Air-conditioning

The corrosion and leakage of central air conditioning chilled water pipe was inspected and analyzed by chemical component analysis, macroscopic examination, SEM, EDS, XRD and microstructure examination. The results show that the corrosion and leakage of the chilled water pipe was mainly caused by oxygen, ion of sulphur in the chilled water.