Side coal bunker opposed firing boiler primary airpowder balance test study

Abstract

Abstract:

It is common that coal powder distribution unbalance of each combustor outlet of side coal bunker boiler. Combustors that closer to extension end have higher coal powder flow rate and higher air velocity. Combustors that closer to fixed end have lower coal powder flow rate and lower air velocity. This is the main cause of uneven combustion and primary air tube blockage. A new type of air velocity adjustment device was introduced. After installed between each distributor and combustor, airpowder velocity of each branch tube was effectively online balanced. The problem of boiler uneven combustion was solved.

Key words:

side coal bunker, boiler, combustor, coal power distribution, airpowder velocity, online balancing, air velocity adjustment

Lv Hongbiao, SHI Henghui.

Side coal bunker opposed firing boiler primary airpowder balance test study

[J]. Huadian Technology, 2017, 39(12): 1-3.

[1]	HU Changzheng, WANG Yabo, LIU Shengchun. Application of MEA solution in the CO2 capture in biomass power plants and coal-fired power plants [J]. Integrated Intelligent Energy, 2022, 44(6): 78-85.
[2]	YAN Xinchun, CAO Huan, HUA Yunpeng. Prediction on tube wall temperatures of boiler heating surfaces based on artificial intelligence [J]. Integrated Intelligent Energy, 2022, 44(3): 58-62.
[3]	CONG Xingliang, XIE Hong, SU Yang, ZHANG Jun, CHENG Yingjie. Experimental study on deep peak-load shaving of a 660 MW ultra-supercritical secondary reheating unit [J]. Huadian Technology, 2021, 43(5): 64-69.
[4]	LIU Yibin, LIU Xuankun, SONG Gang, YANG Xinhua, ZHANG Man, YANG Hairui. Study on the operation optimization of 350 MW supercritical pulverized coal-fired boiler firing 100％ Zhundong coal [J]. Huadian Technology, 2021, 43(12): 79-84.
[5]	CHEN Quanxi, FU Jiangtao. Analysis and prospect of key factors affecting the coupling of municipal sludge combustion and coal-fired power plants [J]. Huadian Technology, 2021, 43(10): 50-60.
[6]	TAN Xuemei, LIU Shijie, ZHAO Bing, GONG Taiyi, WANG Jialin, HU Nan. Research on heat transfer of gas-solid two-phase flow in CFB boilers [J]. Huadian Technology, 2021, 43(10): 61-67.
[7]	LIU Xiuru, LI Peipei, WANG Xianpeng, LU Xuge, WANG Zhiqiang. Review and prospect of researches on boilers´ flue gas acid dew point [J]. Huadian Technology, 2020, 42(9): 45-55.
[8]	OUYANG Ziqu1，2，MAN Chengbo1，LI Zenglin4，LI Shiyuan1，2，3*，PANG Qingtao4，ZHU Jianguo1，2，FAN Zhigang4，LIU Jingzhang1. Study on operation characteristics of a 35 t/h preheating combustion boiler with pure ultra-low volatile carbon-based fuels [J]. Huadian Technology, 2020, 42(7): 50-56.
[9]	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.
[10]	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.
[11]	ZHAO Xiaopeng, SU Yongjian, XU Yiwei, LI Yanjun, LIU Jun, GUO Hongyuan, TAN Kai. Experimental study on large-proportion semi coke co-combustion in a 660 MW supercritical pulverized coal boiler [J]. Huadian Technology, 2020, 42(12): 22-27.
[12]	SUN Haifeng, WANG Zhaohui, WANG Jianfeng, HU Da, ZHU Yue. Analysis on safety and reliability of 600 MW supercritical units' deep peak regulation [J]. Huadian Technology, 2020, 42(12): 94-100.
[13]	LAN Fengchun, LI Xiaoyu, LONG Hui. Review of biomass power generation technology coupled with large coal-fired boilers in Europe [J]. Huadian Technology, 2020, 42(10): 88-94.
[14]	WANG Zhiyong1，XU He2，ZHU Huimin3，GE Junpei1，XU Jing1. Application of fuel consumption difference analysis method in a supercritical pressure oncethrough boiler [J]. Huadian Technology, 2020, 42(1): 58-62.
[15]	YANG Haiyong1，XIONG Xianwei2，RAN Guilin1. Retrofit of lownitrogen burner in lean coal boiler with storagetype hot air pulverized coal feeding system [J]. Huadian Technology, 2019, 41(9): 56-58.

Side coal bunker opposed firing boiler primary airpowder balance test study

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments