A Numerical Study Of The Temperature Distribution Inside The Alloying Equaeating Furnace

In recent years, alloying galvanized steel, as a kind of energy-saving steel with highefficiency, is put into a wide range of applications. Hot dip galvanized and alloying is so far themost common, the most effective and also the most economical process in preventingatmospheric corrosion of board tape products. As the key equipment of the strip continuousgalvanizing line, the galvannealing furnace has a direct impact on the quality of the hotgalvanized steel sheet. Alloying heating mode, heat preservation temperature and time, and thecooling speed are all important factors affecting the alloying coating structure, so in theproduction process of alloying galvanized steel plates, these factors must be under strict control.The analysis of the alloying equal-heating furnace temperature field is to control these factors, soit is of great theoretical and practical significance.CFD software Fluent is used in this paper to conduct simulation flow field and temperaturefield of the alloying equal-heating furnace. The main work include:(1) A3D simulation model ofthe alloying equal-heating furnace is established, and then the fluid and solid regional grid insidethe furnace is divided to generate computing node based on the theory of grid generation.(2)Using computational fluid dynamics principle, on the basis of the basic theory of turbulencemodel, the heat flow mathematical model inside the furnace is established with the standardk two equation turbulent model and SIMPLE algorithm.(3) With Fluent the simulationresearch of the alloying equal-heating furnace is conducted under maintenance and in normalproduction. The analysis of the simulation results show even temperature distribution in thedirection of the strip width, and uneven temperature distribution in the direction of the stripmovement. At the same time, testing the temperature of the alloying equal-heating furnace ingalvanizing line, the author analyzed and compared temperature field distribution in the furnaceand the test data, and tested the accuracy of the calculating model.(4) According to thesimulation results, the resistance arrangement in the alloying equal-heating furnace is optimizedto make even the temperature distribution in the direction of the strip movement.The numerical simulation results in this paper are helpful to improve the understanding ofthe temperature distribution of alloying equal-heating furnace, and is of theory reference andscientific basis for its design and further work.