Numerical Simulation Of Fluid Filed And Strength Analysis In The Hot-blast Stove

The sleeve type hot-blast stove is one of the heat-source equipment which is applied to hot air, it adapts to the development of times by the features of energy conservation and high efficiency, and it is widely used. This article describes the sleeve type hot-blast stove works, the theory of heat transfer and hydromechanics. According to the characteristics of the sleeve type hot-blast stove select the appropriate mathematical model.This dissertation analysis the fluid field and temperature field of the hot-blast stove with AN SYS Workbench. Firstly the data exchange function of ANSYS software and the CAD software was used to insert the geometry model of the hot-blast stove which was established in Pro/E soft/are into ANSYS software establishing the finite element model of hot-blast stove which taking into account data handling capacity of the computer the model is part of a reasonable simplification.Secondly, through the analysis of the fluid field of the finite element model, we can obtain the air and the smoke in the hot-blast stove flow and temperature field distribution which supporting the thermal condition for the thermal analysis. Though the analysis of the sleeve type hot-blast stove, we can obtain the temperature field distribution which take as the temperature loads in thermal-structural coupled analysis, through the thermal-structural coupled anJysis, we can obtain the various parts of hot-blast stove thermal stress and deformation..As the hot-boast stove affected by thermal load and gravity load, the traditional methods was broke through in stress analysis and the stress of the hot-boast stove was classified according to the JB4732-95. Then the dissertation selected the specific paths to do the linear processing and strength checking for the desiccant sealing plate. The results showed all paths were safe.Based on the JB4732-95Steel Pressure Vessels Design by Analysis, strength check of hot-blast stove is carried out. The analysis result indicates that in the original design of the whole structure except the upper fire tube are safe. The stress analysis result indicates that thermal stress value depends on not only the temperature distribution of structure, but also the restrain of the structure; stress intensity have a sudden change in the upper fire tube which was limited, instead of in the place of hot temperature.