Cylindrical pressure vessel shell for reflux drums in distillation systems
The shell is the primary cylindrical pressure-retaining component of a reflux drum, designed to contain liquid-vapor mixtures at elevated pressures and temperatures during distillation processes. It provides structural integrity and houses internal components while maintaining pressure boundaries according to ASME Boiler and Pressure Vessel Code requirements.
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The shell provides pressure containment for the liquid-vapor mixture in distillation systems, maintaining system pressure for efficient separation while housing internal components and ensuring structural integrity.
Shell thickness is calculated using ASME BPVC Section VIII formulas considering design pressure, temperature, material properties, corrosion allowance, and weld joint efficiency, typically resulting in 6-25mm thickness for standard applications.
Carbon steel (SA-516) for non-corrosive services, stainless steel (304/316) for corrosive environments, and clad materials for cost-effective corrosion resistance in chemical processing applications.
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