Online Tank Floor inspection using Acoustic Emission Test
The main reason of leakage accidents is tank bottom corrosion. In recent years, a method based on Acoustic Emission (AE) has been widely used for detecting tank bottom corrosion and leakage.
In-service diagnosis technique for corrosion damage evaluation of oil storage tanks is increasingly needed to reduce the maintenance costs. AE method has been considered as a cost-effective one to meet the requirements of inservice inspection of structures.
Compared with the traditional method for inspection of tank bottom corrosion, AE technology does not require a production interruption to empty and clean the tank.
It also has high efﬁciency and low cost.This method is considered to be an on-line inspection method for metal tank bottom.
No Need to Empty or Clean the Tank
Inspection and Evaluation of Annular Ring
Rapid testing, in one day
Identify tanks that need inspection and repair
Leave good tanks on-line and save the shut-down and cleaning costs
(1) EN 15856:2010, Non-destructive testing — Acoustic emission — General principles of AE testing for the detection of corrosion within metallic surrounding filled with liquid
(2) American Society for Nondestructive Testing, Inc., Nondestructive Testing Handbook – Acoustic Emission Testing, ASNT, Inc., Columbus.
(3) American Petroleum Institute, API 653,Tank Inspection, Repair, Alteration and Reconstruction