管式加热炉工艺相关设计.doc

毕业论文-管式加热炉工艺相关设计 摘 要 论文完成了管式加热炉工艺相关设计，包括燃烧、辐射室、对流室、余热回收及通风系统等模块，得到辐射室炉膛温度、炉管表面热强度、对流室介质出口温度、排烟温度等参数，适用于常减压、重整、焦化等不同用途，圆筒炉、双室立式炉、双面辐射立式炉等不同结构加热炉的相关问题。 通过测定、经验以及计算可获得传热系数的具体数值，可根据公式计算出该加热炉的真实传热能力以及传热效率，对加热炉的是否选用提供决定因素；从理论上分析了对加热炉效率的影响因素。分析得出：排烟损失是加热炉能量损失中最大的一部分。因此在考虑加热炉安全运行的前提下，降低排烟温度以及控制过剩空气系数是比较有效的节能措施。强调了传热的最近本方式，即：热传导、热对流以及热辐射；理论分析为节能效果提供了定性的分析，热力计算为节能效果提供了一个定量的分析。通过本论文也可在管式加热炉的节能改造以及燃料的节约方面寻求到可行性途径。 关键词：管式加热炉；类型；结构；传热系数；炉温、炉压；节能。 ABSTRACT The paper finished tube type heating furnace process design, including combustion chamber, radiation, convection chamber, waste heat recovery and ventilation system, module, the radiation chamber temperature, furnace tube, the heat intensity of the surface of convection chamber medium outlet temperature, exhaust gas temperature and other parameters, applicable to constant decompression, reforming, coking and other different uses, cylinder furnace, double room, double side radiant furnace of vertical type vertical furnace for heating furnace of different structure related problems. Through the determination, experience and calculation of heat transfer coefficient of the concrete numerical value can be obtained, according to the formula to calculate the heating furnace heat transfer capacity and real heat transfer efficiency of heating furnace, is selected to provide determinants; from the theoretical analysis of the factors affecting the efficiency of heating furnace. Conclusion: exhaust gas loss of heating furnace energy loss is the largest part of the. Therefore, in consideration of the safe operation of the heating furnace condition, reduce the exhaust gas temperature and excess air coefficient is a more effective energy saving measures. Emphasizes the heat transfer of the way recently, namely: heat conduction, heat convection and heat radiation; theoretical analysis for the energy saving effect with the qualitative analysis, thermodynamic calculation for energy saving effect provides a quantitative an