Retrofit and combustion adjustment of a lownitrogen burner in a 330MW cogeneration unit

Abstract

Abstract:

In respond to the national environmental protection policy, in order to reduce the cost of denitration, alleviate the ammonia escape rate and air preheater pressure difference caused by the accumulation of ammonium hydrogen sulfate on the cold side of the air preheater, a lownitrogen burner of No.2 boiler for a 330MW cogeneration unit was modified through a lownitrogen burner retrofit.The retrofit took horizontal bias combustion technology and air staging combustion technology.The effect of the lownitrogen burner retrofit was verified by the cold aerodynamic field test and the hot combustion adjustment test.The results show that the primary air, secondary air and SOFA works well, and the furnace flame of good fullness shows no eccentricity and does not burn the furnace wall.The NOx mass concentration at the outlet of the furnace does not exceed 200mg/m3 under various conditions，which means the retrofit has met the requirement.

Key words:

WANG Yunpeng,DUAN Xiaoyun.

Retrofit and combustion adjustment of a lownitrogen burner in a 330MW cogeneration unit [J]. Huadian Technology, 2020, 42(6): 35-42.

[1]	CHEN Hongyan，TANG Zhiguo，CHEN Qi，WANG Yongxu，WU Luming. Optimized method on distributed reactive power compensation in lowvoltage distribution network based on interval power flow calculation [J]. Huadian Technology, 2020, 42(6): 1-5.
[2]	WANG Lijie，WANG Hongteng，SUN Bo. Operation region partition for hydraulic turbine generator units based on stability test data [J]. Huadian Technology, 2020, 42(6): 6-9.
[3]	WU Luming，XUE Mingjun，CHEN Qi，WANG Yongxu，TANG Zhiguo，CHEN Hongyan1,2. 一起电子互感器异常引发的复杂发展性故障分析及改进 [J]. Huadian Technology, 2020, 42(6): 10-15.
[4]	NIU Ben. Water quality control technology for circulating cooling water taking soft water as source [J]. Huadian Technology, 2020, 42(6): 16-21.
[5]	SHANG Liyang，FAN Suxiang，ZHANG Zhiyong，YU Penghui，HE Yong，JI Yanru. Design and application of intelligent algaeblocking equipment for water conveyance main canal [J]. Huadian Technology, 2020, 42(6): 22-24.
[6]	ZHANG Hailong，YANG Guangrui，JING Xinjing，XING Leqiang，LIU Chao，DANG Lijun. Research on energysaving optimization for mediumspeed mill pulverizing systems [J]. Huadian Technology, 2020, 42(6): 25-30.
[7]	SHAO Lei，PAN Guangqiang，ZHANG Yuquan，CHU Hao，CAO Wei. Application of acoustic blockage removal technique applied in urea pyrolysis furnaces [J]. Huadian Technology, 2020, 42(6): 43-46.
[8]	WANG Zhiyong，XU He，ZHU Huimin，GE Junpei，XU Jing. Comparative analysis of calculation models for thermal efficiencies of waste heat boilers in gassteam combined cycle units [J]. Huadian Technology, 2020, 42(6): 47-51.
[9]	WANG Dongzhen，GE Leijiao. Optimization strategy of multiple output cables samephase parallel operation for gas turbine generators [J]. Huadian Technology, 2020, 42(6): 52-56.
[10]	GAO Yong，TIAN Xin，WU Yinchen. Evaluation of prefilter improvement effect of gas turbine air intake filtration system [J]. Huadian Technology, 2020, 42(6): 57-61.
[11]	XING Wu，GUO Xiao，WANG Zhe，SHI Bolun. Application of parameter identification principle in the protection of magnetic shunt reactor [J]. Huadian Technology, 2020, 42(6): 47-51.
[12]	WU Siming，TONG Jialin，WU Yueseng，QI Yong，SUN Wuyi. Comprehensive upgrading reconstruction and performance analysis of a subcritical boiler [J]. Huadian Technology, 2020, 42(6): 66-71.
[13]	YANG Rui. Construction and implementation of intelligent, digital and networked heatsupply system [J]. Huadian Technology, 2020, 42(6): 83-86.
[14]	DING Yang，HAO Jiangang，XIE Daxing. Numerical analysis on 9E gas turbine DLN1.0 combustion system [J]. Huadian Technology, 2020, 42(5): 31-36.
[15]	YOU Jia，WANG Runfang，MA Dawei，JIANG Shaoyi，ZHU Renbin，CHEN Jian，WANG Kefeng. Assessment of alternative energy based on the source apportionment of PM2.5 in Hefei City [J]. Huadian Technology, 2020, 42(1): 1-7.

Retrofit and combustion adjustment of a lownitrogen burner in a 330MW cogeneration unit

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments