The internal leakage of the heat exchanger tube bundle of a reforming extraction device E601A/B occurred.After the tube bundle was extracted,a series of tests such as macroscopic inspection,wall thickness inspection,chemical composition analysis,mechanical performance inspection and energy spectrum inspection were carried out to analyze the failure causes.It was determined that the main cause of the tube bundle leakage was the high content of Cl and S corrosive elements in the medium.
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