SIMULATION METHOD FOR VISUALIZING DYNAMIC DISTRIBUTION CHARACTERISTICS OF OXYGEN CONCENTRATION IN HIGH-TEMPERATURE CARBONIZATION FURNACE

摘要

A simulation method for visualizing the dynamic distribution characteristics of oxygen concentration in a high-temperature carbonization furnace, which relates to a real-time monitoring method for the distribution of oxygen concentration in a high-temperature carbonization furnace used during carbon fiber production. The method comprises the following steps: (1) constructing a 3D mathematical model for the calculation of a whole flow field of a high-temperature carbonization furnace; (2) establishing a 3D simulation model for a muffle cavity and an inlet and outlet sealing cavity of the high-temperature carbonization furnace by using 3D CAD software SOLIDWORKS, and setting relevant parameters; (3) meshing the 3D simulation model; (4) importing the meshed 3D simulation model into an Ansys Fluent module for configuration; (5) setting a detection point and a detection surface, and performing simulation operations to obtain simulation results; and (6) under the same setting conditions, by means of setting different parameters, repeating steps (2)-(5) to carry out multiple simulation calculations. The method may intuitively determine an oxygen concentration distribution state in the high-temperature carbonization furnace, and can better monitor the oxygen in the furnace and determine a reasonable nitrogen-supplementing gas flow rate in the furnace, thereby providing theoretical data for reducing the oxygen concentration.