某电厂1号机组高负荷下二次风运行优化试验研究  

Experimental Study on Optimization of Secondary Air Operation Under High Load of Unit 1 in a Power Plant

作　　者：李鹏 骆宏飞 火鸿宾 Li Peng;Luo Hongfei;Huo Hongbin(Guoneng Bengbu Power Generation Co.,Ltd.,Anhui,224000)

机构地区：[1]国能蚌埠发电有限公司,安徽224000

出　　处：《当代化工研究》2024年第1期101-103,共3页Modern Chemical Research

摘　　要：本文在对某电厂1号630MW燃煤锅炉运行工况摸底的基础上,考察了优化前在中高负荷下省煤器出口A/B两侧过热汽温、再热汽温、飞灰可燃物含量、截面处CO及O_(2)含量的分布,计算了CO热损失及修正后的锅炉热效率,提出了对燃烧器内外二次风、燃尽风的优化调整方案。试验结果表明,优化后580MW、450MW两个负荷下,A/B侧主蒸汽温度与再热汽温良好,CO浓度分别从6166μL/L和2852μL/L下降至77μL/L和39μL/L;优化后的锅炉热效率分别提高了2.09%和1.32%,较好的实现了降本增效。Based on the investigation of the operating conditions of a 630 MW coal-fired boiler in a certain power plant,this article investigates the distribution of superheated steam temperature,reheated steam temperature,combustible content in fly ash,and CO and O_(2) content at the crosssection on both sides of the economizer outlet A/B under medium and high loads before optimization.The CO heat loss and corrected boiler thermal efficiency are calculated,and an optimization and adjustment plan for the secondary air and burnout air inside and outside the burner is proposed.The experimental results show that under optimized loads of 580 MW and 450 MW,the main steam temperature and reheat steam temperature on the A/B side are good,and the CO concentration from 6166μL/L and 2852μL/L drops to 77μL/L and 39μL/L.The optimized boiler thermal efficiency has increased by 2.09%and 1.32%respectively,achieving better cost reduction and efficiency increase.

关 键 词：运行优化 锅炉热效率 CO热损失 二次风 燃尽风 

分 类 号：TM[电气工程]