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Corrosion Inspection System of CNG Storage Well Bottom Head

Domestic CNG storage wells are common in the process of serving for a long time, both inside and outside walls exist corrosion phenomenon. According to their characteristic, an overall design scheme for corrosion detection of the CNG storage well bottom head was presented, which using water immersion ultrasonic testing and screw inspection way. After testing for a standard bottom head, the test results showed that the measurement system can effectively automatic detect the corrosion of bottom head.