Abstract
Using CFD simulation technology, the influence of three kinds of operation modes (air change on the same side mode, cross air change mode and staged air change mode) on the temperature uniformity of regenerative heating furnace was studied. The results show that: 1) in the same side air exchange mode, the high temperature area is easy to form in the middle of the furnace, which makes the local temperature of the billet surface high; 2) in the cross air exchange mode, the high temperature area appears in the middle of the furnace, the heat exchange in the middle of the billet is strong, and the heating speed is fast; 3) in the staged air exchange mode, the high temperature area moves to both ends, and the temperature at both ends of the billet is higher than that in the middle. Therefore, in order to keep the temperature of billet constant, the best operation mode of regenerative heating furnace is alternating operation of cross air change mode and staged air change mode.
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