Structural Analysis and Optimal Design for Water Tube Panel in an Alkali Recovery Boiler

Zaili Zhao, Jinsheng Xiao, Ying Wu, Xiaojun Zhang, Zhiming Wang

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DOI: 10.4236/eng.2010.25046                

Abstract

Alkali recovery aiming at recovering NaOH is the best available technology in China's pulp and paper industry; an alkali recovery boiler is a popular one among all alkali recovery units. For the purpose of designing the most reasonable tube-panel of an evaporator in a 1500 t/d alkali recovery boiler, a total of 8 kinds of cases are put forward for finite element analysis. The modeling, meshing and calculation are carried out for each case. The stress values and their distribution rules are revealed in this paper. The slotting size for the water tubes panel is analyzed by using the optimum design module of ANSYS. After all cases are compared with each other, the optimal one is developed and exemplified in conclusion.

Keywords

Alkali Recovery Boiler, Water Tubes Panel, Finite Element, Thermal Stress, Optimum Design

Conflicts of Interest

The authors declare no conflicts of interest.

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