在石油化工行业中,加热炉的节能运行受到越来越多的重视。然而,在加热炉优化运行参数中,人们普遍对加热炉氧含量、排烟温度感兴趣,对炉膛负压重视不够,忽视了炉膛压力对加热炉优化运行的影响。本文对加热炉炉内压力及其对热效率的影响进行了分析,探讨了炉膛压力的调节方法。 In the petrochemical industry, more and more attention has been paid to the energy-saving operation of furnaces. However, in the optimization of furnace operating parameters, people are generally interested in the oxygen content of the furnace, the exhaust gas temperature is not enough attention to the negative pressure on the hearth, ignoring the furnace pressure on the optimal operation of the furnace. In this paper, the furnace pressure and its effect on thermal efficiency were analyzed, and the adjustment method of furnace pressure was discussed.