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Steam generator tube bundle for atmospheric and vacuum distillation in petrochemical industries

2024-08-31View Original

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It refers to the tube bundle of the medium-pressure steam generator in the atmospheric and vacuum distillation units of the petrochemical industry; the outer wall of the tube bundle on the steam side is subject to severe corrosion. The operating conditions are: temperature of 104 degrees and pressure of 1 MPa. Inner wall of the tube bundle: medium present at reduced level; temperature is 214 degrees, and pressure is 0.571 MPa. This tube bundle has been in use for over 2 years, and ulcerative corrosion has occurred on the outer walls of the tubes; some tubes have broken, and the support plates at certain intervals have also fractured. See the figure below for details:

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