Mechanical Design and Analysis Of Guard Drier (Pressure Vessel)

Abstract

Guard Drier is a pressure vessel which widely used in process industries. It removes the moisture from the vessel .As these devices subjected to high pressure and temperature, it is necessary to design Guard Drier with special care. Under different loading conditions higher stresses will generate at critical location. These higher stresses regions may affect the efficiency of Guard Drier and may lead to dangerous wresults sometimes. So,it is highly recommended to design and analyze it with proper precautions.

The aims of the present work is to thoroughly mechanical design of Guard Drier manually as per ASME code section VIII Div I and analyze the dish end to nozzle junction and shell to nozzle junction. Then results of manual calculations are compared with PV Elite and also verified with FEA tool and obtain the stresses at critical location. This task is carried out by doing a theoretical calculation and making model in PV Elite. Thickness of shell, head, nozzle etc. and stresses are obtained which is helpful in making 3D model of dish end to nozzle junction and shell to nozzle junction and subsequent finite element analysis of Guard Drier. Results obtained from theoretical calculations, PV Elite Calculations and analysis performed is within the permissible limits and variations are not exceeding more than five percentage. This shows that the adopted procedure gives the satisfactory results.