Simulation of Air Flow Uniform Distribution Device in Carbon Fiber Per-oxidation Furnace
Carbon fiber is a kind of new material with high temperature resistance,high strength and corrosion resistance,which is widely used in various fields of aerospace,national defense and civil industry.Pre-oxidation is one of the most critical steps in carbon fiber manufac-turing.Pre-oxidation furnace is often used in industrial production process,and a key index to measure the quality of pre-oxidation is the uni-formity of the wind field in the pre-oxidation furnace.The research object of this paper is the air flow distribution device in the pre-oxidation furnace,and the flow field distribution after the air flow passes through the device is simulated by ANSYS FLUENT.The uniform distribution of air flow is realized by changing the geometry of the inlet and outlet of the air flow distribution device and the opening position of the air flow distribution plate.By comparing the simulated flow field characteristics with the velocity and pressure cloud images,the pressure and flow uni-formity at the outlet of the flow distributing device are analyzed to obtain a flow distributing device with better flow distribution effect.The opti-mized structure of the air distribution device obtained by simulation is as follows:the right-angle inlet and outlet structure of the double-layer air distribution plate with none-completely staggered style.
pre-oxidation furnacenumerical simulationair distribution deviceair distribution plate
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