| 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NOx、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。 |
| 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 |
| DOI：10.3969/j.issn.1007-3426.2021.06.008 |
| 分类号: |
| 基金项目: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) |
|
| Design optimization of combustion chamber for submerged combustion natural gas heating device |
|
Rong Kairu1, Shi Yongzheng1, Jian Hairui2, Liu Rong1
|
|
1. School of Environmental and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing, China;2. CNNC Energy Technology Co., Ltd., Beijing, China
|
| Abstract: |
| 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 NOx, 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. |
| Key words: submerged combustion combustion chamber simulation optimization optimum excess air coefficient design velocity of flue gas flow space |
