Damage of Tubular Equipment in Process Industry

Tubular process equipment is often damaged in industrial processes. The damage occurs both on devices working at high temperatures and also on less exposed devices. In case of sudden damage of key equipment a shutdown of the whole production unit and resulting significant economic losses are imminent. This paper presents a solution of several types of tubular process equipment. The causes of damage and suggestions of correction actions are discussed in all cases. Very important part is the analysis of operational conditions, determination of unfavourable working states decreasing lifetime of devices and suggestions of correction actions. Lately very popular numerical methods are used for analysis of the equipment.

Authors:

• Pavel Losak
• Tomas Letal
• Radek Nejezchleb

Keywords:

• creep
• damage
• fatigue
• FEM
• FSI
• lifetime
• tubular equipment

References:

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Stainless Steels, Dissertation, Helsinki University of Technology,
Department of Mechanical Engineering, Espoo, Finland, 2001.
[2] MOINEREAU, D., BEZDIKIAN, G., FAIDY, C. Methodology for
pressurized thermal shock evaluation: recent improvements in French
RPV PTS assessment, International Journal of Pressure Vessels and
Piping, 2001, vol. 78, pp. 69-83.