摘要
在煤气化装置开车阶段,通常由开工预热炉将气化炉系统由常温预热至煤粉或煤浆可以与氧气直接反应的温度且随着此时注入气化炉内的煤粉或煤浆与氧化剂开始逐渐反应后,开工预热炉逐渐退出开工预热阶段,改由惰性保护气吹扫,开工预热阶段完成;但在开工阶段,由于气化炉系统升温曲线的限制,往往注入开工预热炉的燃料气量是变化的,同时燃烧空气与激冷氮气消耗量也跟随燃料气量的变化而变化,通过计算给出燃料气量和燃烧空气与激冷氮气消耗量的关系,以供开工预热阶段DCS快速调节相关气量使用。
The driving device in gas phase, usually start preheating furnace of the gasification furnace system by temperature preheated to pulverized coal or coal slurry with oxygen direct reaction temperature and with the injection of gasification furnace pulverized coal or coal slurry and oxidant gradually after the reaction started gradually from the start preheating furnace preheating stage by inertia the protection of gas blowing, start preheating stage ; but in the start stage, the temperature curve of the gasification system constraints, often pour into the fuel gas preheating furnace is started to change, and change the combustion air and chilled nitrogen consumption of fuel gas and also follow the changes, this paper will calculate the fuel gas and combustion air with the chilling nitrogen consumption relationship, to start preheating stage DCS fast regulating the use of air.
出处
《化工设计通讯》
CAS
2017年第7期22-22,共1页
Chemical Engineering Design Communications
关键词
预热炉
煤气化
燃料气
燃烧空气
激冷氮气
preheating furnace
coal gasification
fuel gas
combustion air
quench nitrogen
