PRESSURE VESSEL OPENING REINFORCEMENT METHOD AND SYSTEM, ELECTRONIC DEVICE AND STORAGE MEDIUM
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United States of America Patent
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Issued Date -
Aug 1, 2024
app pub date -
Jan 30, 2024
filing date -
Jan 30, 2023
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A pressure vessel opening reinforcement method includes: acquiring cylinder information and nozzle information of pressure vessel; determining axial stress and circumferential stress of cylinder according to the cylinder information; determining ratio of the circumferential stress to the axial stress; determining whether the cylinder meets correction condition, and if so, correcting the stress at different ratios according to the nozzle information, 0-degree section stress concentration coefficient and 90-degree section stress concentration coefficient; otherwise, correcting the stress at different ratios according to stress concentration coefficient when the ratio is first preset ratio threshold and stress concentration coefficient when the ratio is second preset ratio threshold. Problems of unreasonable opening reinforcement calculation and design risk are solved for fixed tubesheet heat exchanger, tower and earth-covered or mounted steel storage vessel cylinder under the action of bending moment and axial force.
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