ENG  Vol.2 No.5 , May 2010
Structural Analysis and Optimal Design for Water Tube Panel in an Alkali Recovery Boiler
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.
Cite this paper: nullZ. Zhao, J. Xiao, Y. Wu, X. Zhang and Z. Wang, "Structural Analysis and Optimal Design for Water Tube Panel in an Alkali Recovery Boiler," Engineering, Vol. 2 No. 5, 2010, pp. 353-359. doi: 10.4236/eng.2010.25046.

[1]   R. Xin, “Cleaner Production in China’s Pulp and Paper Industry,” Journal of Cleaner Production, Vol. 6, 1998, pp. 349-355.

[2]   Z. L. Zhao, Z. F. Yuan, Q. H. Cui and Y. N. Exergy, “Analysis of an WGZ220/6.8-1 Type Alkali Recovery Boiler,” Modern Applied Science, Vol. 2, 2010, pp. 23-30.

[3]   Z. L. Zhao, “Structure Analysis and Safety Assessment of Pressure Vessels,” Ph.D. Thesis, Wuhan University of Technology, Wuhan, 2006.

[4]   Z. M. Wang, J. S. Xiao, L. Zang, et al., “Heat Transfer and Thermal Stress Analysis of Heated Water tubes panel in a 1500 t/d Alkalinity Recycling Boiler,” Journal of Wuhan University of Technology, Vol. 28, 2007, pp. 38-40.

[5]   J. S. Xiao, B. Jiang, J. Liu, et al., “Microstructures and Mechanical Properties of Ceramic/Metal Gradient Thermal Barrier Coatings,” Journal of Wuhan University of Technology, Materials Science Edition, Vol. 18, 2003, pp. 38-40.

[6]   P. S. Ming, J. S. Xiao, J. Liu, et al., “Finite Element Analysis of Thermal Stresses in Ceramic/Metal Gradient Thermal Barrier Coatings” Journal of Wuhan University of Technology, Materials Science Edition, Vol. 20, 2005, pp. 44-47.

[7]   A. Saxena, P. K. Liaw, “Remaining Life Estimation of Boiler Pressure Parts-Crack Growth Studies,” EPRI Report, CS-4688, 1988.

[8]   S. Moaveni, “Finite Element Analysis Theory and Application with ANSYS,” 2nd Edition, Publishing House of Electronics Industry, Beijing, 2005, pp. 508-510.

[9]   Z. P. Zhu, J. F. Xue, Z. C. Li, et al., “The Common Materials for Boiler and Pressure Vessels,” Mechanical Industry Publishing House, Beijing, 2004, pp. 1-247.

[10]   А. М Гурвич and Н. В. Кузнедов, “Thermal Design of Boiler Units (Standard Method),” China Water Power Press, Beijing, 1960, pp. 52-256.

[11]   H. Hayakawa, M. Miyahara, A. Kanaya, et al., “Creep- fatigue Life Prediction for Ligament of Boiler Headers by Strain Range Partitioning Method,” Journal of the Society of Materials Science, Vol. 48, 1999, pp. 604-609.

[12]   A. J. Ramos, C. C. Rios and A. R. Varqas Jesus, “Fatigue Life Prediction of Delayed Coke Drums,” Vision Tecnologia, Vol. 6, 1999, pp. 93-100.

[13]   S. S. Manson and G. R. Halford, “Practical Implementation of the Double Linear Damage Rule and Damage Curve Approach or Treating Cumulative Fatigue Damage,” International Journal of Fracture, Vol. 17, No. 2, 1981, pp. 169-192.

[14]   N. K. Mukhopadhyay and S. G. Chowdhury, “Remaining Life Estimation of a Service Exposed Economizer Tube,” Engineering Failure Analysis, Vol. 6, 1996, pp. 233-243.