The chimney of converter is one of the main equipment in steel-making factories.The boiloff and cooling of cooling water in the chimney tubes change with smelting process rapidly and periodically.

• 转炉烟罩是转炉炼钢过程中的主要设备之一，转炉烟道汽化冷却的运行工况随转炉冶炼工艺而周期性、急剧地变化。