The epoxy ethane converter cylinder of a certain epoxy ethane/ethylene glycol unit experienced multiple leaks due to local corrosion during use and was sealed under pressure.Therefore,it is necessary to inspect the thinning parts of the converter cylinder while in use and take protective measures.Based on the characteristics of local corrosion in the converter,in the inspection,through method comparison,pulse eddy current testing technology is first applied to quickly scan the defects,and then high-temperature thickness measurement method is used to accurately locate the location of the defects.After the inspection was completed,the enterprise took corresponding risk control measures based on the local corrosion situation,eliminated hidden dangers,and improved the safety of equipment operation.
On-line detectionPulsed eddy current testingLocalized corrosionCarbon dioxide corrosion
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