论文部分内容阅读
针对某炼油厂焦化装置加热炉存在的“排烟温度高”、“炉效低”等问题,采用CFD方法,对不同工况下加热炉内燃料气的燃烧情况进行了数值模拟,获得了空气系数、预热空气温度等燃烧过程操作参数对火焰形貌、炉内温度均匀性以及污染物生成的影响规律。在此基础上,综合分析燃烧、换热效率、烟气露点、污染物控制等因素,确定了该加热炉操作过程中最佳的空气系数与预热空气温度,并验证了所选参数的可行性。
Aiming at the problems such as “high exhaust gas temperature” and “low furnace efficiency” in the reheating furnace of a refinery coking plant, the CFD method was used to simulate the combustion of fuel gas in the heating furnace under different working conditions. The influence of operating parameters such as air coefficient and preheating air temperature on flame morphology, furnace temperature uniformity and pollutant generation was obtained. On this basis, the factors such as combustion, heat exchange efficiency, flue gas dew point, pollutant control and so on were comprehensively analyzed to determine the best air coefficient and preheating air temperature during operation of the furnace, and verified the feasibility of the selected parameters Sex.