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热效率作为衡量加热炉先进性与操作性能优劣的一个重要指标,直接关系到车间生产能耗的高低.以洛阳石化蜡油加氢加热炉燃烧现状为依据,分析了加热炉热效率的影响因素,并针对性地提出了提高加热炉热效率的改进措施,达到节能的目的.加热炉热效率主要受过剩空气系数,排烟温度,一氧化碳含量等因素的影响.氧含量每升高1%,过剩空气系数增加约6.3%,热效率降低约0.4%;一氧化碳含量每升高100 mg/L,热效率降低约0.05%;排烟温度每升高5℃,热效率降低约0.25%.为提高加热炉效率,氧含量应控制在2%～4%,在此基础上尽可能降低一氧化碳含量,排烟温度控制在125～135℃为宜.
Thermal efficiency as a measure of the advantages and disadvantages of advanced and operational performance of the heating furnace is directly related to the level of energy consumption of the workshop.Based on the combustion of Luoyang Petrochemical Wax Hydrogenation Furnace, the factors that affect the thermal efficiency of the furnace are analyzed, And some measures to improve the thermal efficiency of the heating furnace are put forward in order to achieve energy saving.The thermal efficiency of the heating furnace is mainly affected by factors such as excess air coefficient, exhaust gas temperature and carbon monoxide content.When the oxygen content increases by 1%, the excess air coefficient Increase of about 6.3%, thermal efficiency decreased by about 0.4%; for each 100 mg / L of carbon monoxide, the thermal efficiency decreased by about 0.05%; for every 5 ° C increase of exhaust gas temperature, the thermal efficiency decreased by about 0.25% .In order to improve the efficiency of the furnace, oxygen content Should be controlled at 2% to 4%, on the basis of this as much as possible to reduce the content of carbon monoxide, exhaust gas temperature control at 125 ~ 135 ℃ appropriate.