Experimental study on the characteristics of NOx emissions from 600 MW supercritical bituminous coal fired boiler with swirl burner

doi:10.11930/j.issn.1004-9649.2012.3.62.5

Abstract

Abstract: NO_x emissions from a 600 MW supercritical boiler with swirl burner were investigated by performing a serial of tests such as changing O₂ concentration, air-distribution of different level burners, secondary air ratio, secondary and tertiary air swirl strength, air-distribution of the burners in same level and boiler load. The test results show that for the bituminous coal fired boiler with swirl burner, the O₂ concentration, over fire air （OFA） ratio, boiler load and air-distribution mode of the burners in same level are the main factors affecting NO_x emissions. In order to reduce NO_x emissions and keep higher boiler efficiency, the following principles about combustion adjustment should be obeyed: （1） the O₂ concentration should be kept in the premise of ensuring safe operation of boiler as lower as possible;（2） large proportion of OFA should be adopted; （3） boiler load should not be too low; （4） two-peak air distribution mode should be taken among the same level burners.

Key words: supercritical boiler, swirl burner, NOx emissions, bituminous coal, carbon content in fly ash, combustion adjustment

CLC Number:

YUE Jun-feng, QIN Peng, ZOU Lei, LIANG Shao-hua, ZHANG En-xian, HUANG Lei. Experimental study on the characteristics of NO_x emissions from 600 MW supercritical bituminous coal fired boiler with swirl burner[J]. Electric Power, 2012, 45(3): 62-67.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2012.3.62.5

https://www.electricpower.com.cn/EN/Y2012/V45/I3/62

References

[1] 梁立刚,孟勇,吴生来. 1 025 t/h锅炉运行优化调整及NO x 排放特性试验研究[J]. 动力工程学报,2010,30（10）：727-732.
LIANG Li-gang,MENG Yong,WU Sheng-lai. Experimental study on optimal adjustment and NO x emission of a 1 025 t/h boiler[J]. Journal of Chinese Society of Power Engineering,2010,30（10）：727-732.
[2] 肖汉才,周臻. 超临界机组与超超临界机组的优势及在我国大力发展的广阔前景[J]. 电站系统工程,2004,20（5）：8-10.
XIAO Han-cai, ZHOU Zhen. Superiority of supercritical and ultra supercritical units and its future development in China[J]. Power System Engineering,2004,20（5）：8-10.
[3] 徐通模,袁益超,陈干锦,等. 超大容量超超临界锅炉的发展趋势[J]. 动力工程,2003,23（3）：2363-2369.
XU Tong-mo,YUAN Yi-chao,CHEN Gan-jin, et al . Developmental trend of super-large capacity and ultra supercritical boilers[J]. Journal of Power Engineering,2003,23（3）：2363-2369.
[4] 林正春,范卫东,李友谊, 等. 一种低NO x 旋流燃烧器流场特性的研究[J]. 动力工程,2008,28（3）：355-360.
LIN Zheng-chun,FAN Wei-dong,LI You-yi, et al . Experimental research on aerodynamic field characteristic of a low NO x swirl burner[J]. Journal of Power Engineering,2008,28（3）：355-360.
[5] 丁士发,杨凯镟. 超临界锅炉高温受热面屏间热偏差在线优化研究[J]. 动力工程学报,2011,31（4）：243-247.
DING Shi-fa,YANG Kai-xuan. Online optimization on thermal deviation of high-temperature heat pipe panels for a supercritical boiler[J].Journal of Chinese Society of Power Engineering,2011,31（4）：243-247.
[6] 李芳芹,魏敦崧,马京程,等. 燃煤锅炉空气分级燃烧降低NO x 排放的数值模拟[J]. 燃料化学学报,2004,32（5）：537-541.
LI Fang-qin,WEI Dun-song,MA Jing-cheng, et al . Numerical simulation of low-NO x emission in a coal-fired utility boiler with staged-air combustion[J]. Journal of Fuel Chemistry and Technology,2004,32（5）：537-541.
[7] 白涛,郭永红,孙保民,等.1 025 t/h旋流燃烧器煤粉炉降低NO x 生成的数值模拟[J]. 中国电机工程学报,2010,30（29）：16-23.
BAI Tao,GUO Yong-hong,SUN Bao-min, et al . Numerical simulation of decreasing NO x emission in a swirling combustion pulverized coal boiler[J]. Proceedings of the CSEE,2010,30（29）：16-23.
[8] 高小涛.大型燃煤电站锅炉低NO x 燃烧及其排放特性的研究[D]. 南京：东南大学,2009.
[9] 肖海平,张千,王磊,等. 燃烧调整对NO x 排放及锅炉效率的影响[J]. 中国电机工程学报,2011,31（8）：1-6.
XIAO Hai-ping,ZHANG Qian,WANG Lei, et al . Effect of combustion adjustment on NO x emission and boiler efficiency[J]. Proceedings of the CSEE,2011,31（8）：1-6.
[10] CHOI C R,KIM C N.Numerical investigation on the flow, combustion and NO x emission characteristics in a 500 MW e tangentially fired pulverized-coal boiler[J]. Fuel,2009,88（9）：1720-1731.
[11] 岑可法,周昊,池作和.大型电站锅炉安全及优化运行技术[M].北京：中国电力出版社,2007.
[12] 方庆艳, 汪华剑, 陈刚,等. 燃尽风对超超临界锅炉燃烧特性影响的数值模拟[J]. 华中科技大学学报: 自然科学版,2010,38（11）：92-95.
FANG Qing-yan, WANG Hua-jian,CHEN Gang, et al . Numerical simulation on effects of over fire air on the combustion characteristics in an ultra-supercritical boiler[J]. Journal of Huazhong University of Science and Technology: Natural Science Edition, 2010,38（11）：92-95.
[13] 赵伶玲,周强泰,赵长遂.煤粉旋流燃烧器掺混系数的研究与分析[J]. 中国电机工程学报,2006,26（23）：95-99.
ZHAO Ling-ling, ZHOU Qiang-tai, ZHAO Chang-sui. Study on mixed coefficient of pulverized coal swirl burner[J]. Proceedings of the CSEE,2006,26（23）：95-99.
[14] 周志军,周丛丛,徐建华,等. 低NO x 旋流燃烧器一、二次风混合特性分析[J]. 中国电机工程学报,2010,30（11）：8-14.
ZHOU Zhi-jun,ZHOU Cong-cong,XU Jian-hua, et al . Analysis of the mixed between primary air and secondary air in a low NO x swirl burner[J]. Proceedings of the CSEE,2010,30（11）：8-14.
[15] 王军,邓仲勇,李铁,等. 600 MW超临界锅炉的调试及运行[J].动力工程,2006,26（1）：22-26, 37.
WANG Jun,DENG Zhong-yong,LI Tie, et al . Commissioning and operational experiences of 600 MW supercritical boilers[J]. Journal of Power Engineering,2006,26（1）：22-26, 37.
[16] 李金平,吕俊复,张海,等. 旋流煤粉燃烧器低NO x 排放技术[J]. 锅炉技术,2005,36（4）：1-7, 30.
LI Jin-ping,LU Jun-fu,ZHANG Hai, et al . Low NO x emission technologies of swirl pulverized coal burner[J]. Boiler Technology,2005,36（4）：1-7, 30.
[17] 李钧, 阎维平,李春燕,等. 基于数值计算的煤粉锅炉NO x 释放规律研究[J]. 中国电机工程学报,2009,29（23）：13-19.
LI Jun,YAN Wei-ping,LI Chun-yan, et al . Study on NO x emission of characteristics of pulverized coal fired boiler[J]. Proceedings of the CSEE,2009,29（23）：13-19.

Experimental study on the characteristics of NO_x emissions from 600 MW supercritical bituminous coal fired boiler with swirl burner

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

[1]	WANG Yang, ZHU Xiaoxin, CHEN Ming, WANG Huajian, FANG Fan, ZHU Weijian. Experimental Studies on the Influence of Soot Blowing on the Overheating of Water Wall Pipes under Low Loads in Supercritical Boilers [J]. Electric Power, 2020, 53(11): 227-233.
[2]	WANG Yang, WANG Huajian, ZHOU Hongguang, YAN Xianglin, BAI Peng, LU Qi. Study on Testing Method and Application of Water Wall Tube Temperature for Ultra-Supercritical Boiler [J]. Electric Power, 2019, 52(1): 166-173.
[3]	JIA Yonghui, LI Xin, ZHANG Yongsheng, AN Guoyin, YAN Huibo, MA Hui. Experimental Study on Ignition of Blended Coal in W-Flame Boiler with Swirl Burners [J]. Electric Power, 2018, 51(9): 34-38,45.
[4]	ZHANG Yixin, FU Hui, WEI Songwei, GAO Peng. Application of UCMS10 Online Fly Ash Carbon Content Measurement Technology on a 660-MW Unit [J]. Electric Power, 2018, 51(9): 78-82.
[5]	DENG Bo, XU Hong, GUO Peng, ZHANG Naiqiang, NI Yongzhong. Prediction of Superheater Tube Wall Temperature in Supercritical/Ultra-Supercritical Boilers for Different Loading [J]. Electric Power, 2018, 51(3): 13-20.
[6]	LI Ruping, FAN Yinlong, TONG Jialin, QI Xiaojuan, LÜ Hongkun, LI Jian, DING Liwei. Numerical Simulation and Optimization of Low NO_x Combustion Characteristics for a 600 MW Boiler [J]. Electric Power, 2018, 51(10): 164-170.
[7]	HUANG Jianjun, ZHANG Xin, ZHANG Wenlong, YUAN Haifeng, LIU Yanpeng, DANG Yue. Research on the Testing of Combustion Optimization and Adjustment of a W-Flame Boiler [J]. Electric Power, 2018, 51(1): 117-125.
[8]	LIU Xinchang, YAN Xiaozhong, JING Pei, LI Pei, ZHANG Yiman, WU Aijun, CHEN Shaolong. Study on the Cause of High-Temperature Corrosion of Water Wall Tubes in a 660-MW Supercritical Opposed Firing Boiler [J]. Electric Power, 2017, 50(5): 7-12.
[9]	MA Ping, LIU Nannan, WANG Zhen, ZHAO Qian. Study on Tangential Boiler Temperature Field Using Closed-Loop Control [J]. Electric Power, 2017, 50(2): 88-94.
[10]	SHI Shuyu, LI Zhi, ZHAO Chao, ZHANG Yong, YANG Tianliang. Development and Engineering Application of Thermal Calculation System for Double-Reheat Ultra-Supercritical Boilers [J]. Electric Power, 2017, 50(2): 75-81.
[11]	HUANG Xiangbin, WANG Huajian, BAI Peng, YAN Xianglin. Numerical Simulation on the Operation Optimization of Tiny Oil Ignition Burner [J]. Electric Power, 2017, 50(10): 104-109.
[12]	DENG Linghui, KANG Yujun, WANG Junmin, CHENG Yongming, WANG Bining. Finite Element Analysis on Deformation and Cracking of the Cooling Tubes of a [J]. Electric Power, 2016, 49(5): 72-75.
[13]	GUO Jie, QIN Xichao. Combustion Optimization for a 1 000-MW Ultra Supercritical Boiler [J]. Electric Power, 2015, 48(5): 97-102.
[14]	WEI Tong-sheng, YANG Peng-she, DAI Xin, NIE Jian-ping. Study on Ignition and Flame Stabilization Mechanism of Down-Shot Firing Boiler with Swirl Burners [J]. Electric Power, 2014, 47(8): 103-106.
[15]	LI Zhi-gang, ZHANG Yu-bo, YAO Bing-yin. Case Study on High Temperature Oxidation in Supercritical/Ultra-Supercritical Boilers [J]. Electric Power, 2014, 47(8): 88-93.