浸没燃烧天然气加热装置燃烧室设计优化  

Design optimization of combustion chamber for submerged combustion natural gas heating device

作　　者：戎开茹 史永征 菅海瑞 刘蓉 Rong Kairu;Shi Yongzheng;Jian Hairui;Liu Rong(School of Environmental and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing,China;CNNC Energy Technology Co.,Ltd.,Beijing,China)

机构地区：[1]北京建筑大学环境与能源工程学院 [2]中核能源科技有限公司

出　　处：《石油与天然气化工》2021年第6期42-48,共7页Chemical engineering of oil & gas

基　　金：北京市科技计划课题“高中压调压站冻堵、冻胀对安全运行影响分析及应对措施研究”(D151100005515002)。

摘　　要：浸没燃烧天然气加热装置是一种新型天然气加热装置,通过理论分析计算与数值模拟实验研究的方法,并结合实际装置运行情况,对装置燃烧室进行优化设计,给出该类型燃烧室设计结构及运行工况的优化参数。结果表明:①综合考虑过剩空气系数对NO_(x)、CO排放以及烟气出口温度的影响,过剩空气系数建议取1.4;②在浸没式燃烧-圆筒形金属纤维燃烧器的燃烧室设计中,建议烟气流动空间设计流速取值不高于5 m/s。Submerged combustion natural gas heating device is a new type of natural gas heating device.In this paper,through the methods of theoretical analysis,calculation and numerical simulation experimental research,and combined with the actual operation,the design of combustion chamber of the device is optimized,and the optimization parameters of the design structure and operation conditions are given.The results show that:(1)considering the influence of excess air coefficient on NO_(x),CO emissions and flue gas outlet temperature,the recommended value of excess air coefficient is 1.4;(2)in the design of submerged combustion cylindrical metal fiber burner,it is suggested that the design velocity of flue gas flow space should not be higher than 5 m/s.

关 键 词：浸没燃烧 燃烧室 仿真优化 最佳过剩空气系数 烟气流动空间设计流速 

分 类 号：TE96[石油与天然气工程—石油机械设备]