WIT Press


Fatigue Failure Of Suspension Tubes In A Catalytic Reformer Furnace

Price

Free (open access)

Paper DOI

10.2495/CMEM950781

Volume

12

Pages

8

Published

1995

Size

676 kb

Author(s)

R.C. Batista, M.S. Pfeil & N. Roitman

Abstract

The consolidation of catalytic material inside the suspension tubes of a reformer furnace is usually achieved through vibration procedures that may cause damages to the welded tubular joints. This paper reports on the main results obtained from an interactive numerical-experimental dynamic approach to this vibration problem, which had a twofold purpose: (i) to calibrate a FEM model to perform a fatigue analysis; (ii) to conceive an alternative procedure which precluded the precocious fatigue cracks in the welded joints. 1 Introduction In a hydrogen production plant the consolidation of the catalytic material inside the vertical tubes of a reformer furnace can be done by applying lateral forced vibration through a pneumatic device mounted at the top of each of these suspended tubes, as illustrated in Fig.

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