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加热炉的工艺设计一定要协调各参数之间的复杂关系,这些参数有工艺物料的物理性质与相变化,燃料的热值与燃烧特性,对流段与辐射段的热负荷分配,工艺物料与烟气的压力降,烟囱高度。本文即讨论这些比较重要的参数。一、燃烧基准含氢燃料有两种热值:高热值(HHV)是按燃烧过程中所产生的水蒸汽全部被冷却到0℃测定的,低热值(LHV)是按燃烧生成的水蒸汽处于汽相算得的,在数值上等于高热值减去水的汽化潜热。
Furnace process design must coordinate the complex relationship between the parameters of the physical properties of the process material and phase change, the heating value and combustion characteristics of the fuel, the convection section and the radiation section of the heat load distribution, process materials and smoke Gas pressure drop, chimney height. This article discusses these more important parameters. First, the base fuel combustion There are two kinds of calorific value: high heat value (HHV) is generated according to the combustion process of water vapor is all cooled to 0 ℃ measured, low calorific value (LHV) is generated by the combustion of steam at Calculated as the vapor phase, it is numerically equal to the high calorific value minus the latent heat of vaporization of water.