低热值煤气富氧燃烧时室状炉内温度场仿真研究  

Simulation Study on Temperature Field in Chamber Furnace During Oxygen Enriched Combustion of Low Calorific Value Gas

作　　者：杜福君 苏福永 DU Fu-jun;SU Fu-yong(Qingdao Special Steel Co.,Ltd.,Qingdao 266413,China;School of Energy and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]青岛特殊钢铁有限公司,青岛266413 [2]北京科技大学能源与环境工程学院,北京100083

出　　处：《应用能源技术》2022年第10期9-13,共5页Applied Energy Technology

摘　　要：富氧燃烧技术作为燃烧过程节能减排的重要手段已经越来越受到大家的重视,本文以室状炉为研究对象,通过对低热值煤气与不同含氧量空气燃烧过程的模拟仿真研究,分析了氧含量对于室状炉内温度场的影响规律。结果表明,随着氧气浓度的增加,炉内最高温度和平均温度均有上升,在炉内距离喷口4 m之后的距离时炉内温度逐步达到最大值,且炉内最大温度值位置会随着氧浓度增加而产生后移,到了6 m附近,煤气基本消耗完,温度也随之下降。As an important means of energy conservation and emission reduction in the combustion process,oxygen enriched combustion technology has attracted more and more attention.Taking the chamber furnace as the research object,this paper analyzes the influence of oxygen content on the temperature field in the chamber furnace through the simulation of the combustion process of low calorific value gas and air with different oxygen content.The results show that with the increase of oxygen concentration,the maximum temperature and average temperature in the furnace rise.At the distance of 4 m from the nozzle,the temperature in the furnace gradually reaches the maximum value,and the position of the maximum temperature in the furnace will move backward with the increase of oxygen concentration.When it is close to 6 m,the gas is basically consumed,and the temperature also decreases.

关 键 词：低热值煤气 富氧燃烧 室状炉 数值模拟 

分 类 号：TK222[动力工程及工程热物理—动力机械及工程]