Stress analysis of tube sheet thickness issues

2016-11-11View Original

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Background: It is a high-temperature superheater with a design pressure of 7 MPa and a hydrostatic test pressure of 12.8 MPa. The thickness of the tube sheet was determined through stress analysis and is 24 mm; however, the tube sheet was purchased as 12Cr2Mo1R steel plates with a thickness of 28 mm. After processing and welding, welding deformation occurred in the tube sheet once it was welded to the cylinder, resulting in uneven thicknesses – ranging from 24 mm, 25 mm, to 25.X mm – with the maximum thickness not exceeding 26 mm. Question: The supervisor now says that the thickness must not exceed 24 mm, as the thickness is determined through stress-deflection calculations. What should I do? Waiting online, urgently! ! ! ! ! ! ! ! ! ! ! ! ! ! ! I hope the experts on this forum can help me. I am extremely grateful

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Stress analysis of tube sheet thickness issues

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