湿度变化对双旋流合成气非预混燃烧特性的影响

上海交通大学学报（自然版） ›› 2014, Vol. 48 ›› Issue (06): 746-749.

湿度变化对双旋流合成气非预混燃烧特性的影响

葛冰1，田寅申1，谢岳生2，臧述升1

（1.上海交通大学动力机械及工程教育部重点实验室，上海 200240；2.上海电气电站集团技术研究与发展中心,上海 201612）

收稿日期:2013-11-20 出版日期:2014-06-30 发布日期:2014-06-30
基金资助:
国家自然科学基金（51206109）资助项目

Influence of Humidity on a Double-Swirled Non-Premixed Syngas Burner

GE Bing1,TIAN Yinshen1,XIE Yuesheng2,ZANG Shusheng1

(1. Key Laboratory for Power Machinery and Engineering of the Ministry of Education, Shanghai Jiaotong University, Shanghai 200240, China; 2. Technology Research and Development Center, Shanghai Electric Power Generation Group, Shanghai 201612, China)

Received:2013-11-20 Online:2014-06-30 Published:2014-06-30

摘要/Abstract

摘要：

利用平面激光诱导荧光（PLIF）、高温细丝热电偶及红外气体分析仪对不同空气湿度下的双旋流合成气非预混燃烧流场进行了实验研究.实验结果表明，随着空气湿度的增加，合成气火焰的基本形态已经发生很大变化，燃烧室中心轴线处OH自由基浓度越来越低，荧光信号强度明显变弱，火焰根部逐渐出现W型分布特征，燃烧室排气温度缓慢下降；当空气加湿量φ（空气中水蒸气体积与干空气体积之比）为0～30%时，CO排放量变化不大，但是当φ=40%时CO排放迅速增加，而当φ=50%时，CO排放已经不稳定，燃烧振荡，容易熄火.此外，NOx排放随着φ增加下降明显，但是当φ>20%时，NOx排放的下降趋势会变慢，继续增加水蒸气对NOx排放的影响不大.

关键词: 双旋流燃烧, 合成气燃烧, 湿空气燃烧, 平面诱导荧光测量

Abstract:

Experiments were performed to investigate the influence of humidity on a doubleswirlded nonpremixed syngas burner. Planar laserinduced fluorescence (PLIF) of OH radical measurement was adopted to identify main reaction zones and burnt gas regions as well. Together with the temperature and emission measurements during the exhaust section, some important characteristics of the syngas flame were investigated in detail. The results indicate that fluorescent signal strength of OH radicals pronounce weakening, and the flame gradually show a W type distribution with the increase of humidification amount. CO missions in combustor change little when φ is in the range of 0 to 30%, but increase quickly when φ is over 40%. NOx missions in combustor reduce continuously with the humidity of air increaseing. However, the slope of NOx descending decreases when φ is over 20%.

Key words: double-swirled combustion, syngas combustion, humid air combustion, planar laserinduced fluorescence (PLIF) measurement

中图分类号:

TK 16
O 357

葛冰1，田寅申1，谢岳生2，臧述升1. 湿度变化对双旋流合成气非预混燃烧特性的影响[J]. 上海交通大学学报（自然版）, 2014, 48(06): 746-749.

GE Bing1,TIAN Yinshen1,XIE Yuesheng2,ZANG Shusheng1. Influence of Humidity on a Double-Swirled Non-Premixed Syngas Burner[J]. Journal of Shanghai Jiaotong University, 2014, 48(06): 746-749.