CAJ | 학술논문

随着新的燃煤电站锅炉氮氧化物(NOx)排放标准的制定，循环流化床(CFB)锅炉 NOx排放控制越发受到重视。清华大学开发的基于流态重构的节能型 CFB 锅炉技术，因其有效解决了原有 CFB 锅炉厂用电率高、炉膛磨损严重、燃烧效率偏低等问题，已得到一定规模的推广应用。同时，该技术在NOx超低排放方面也存在一定潜在优势。为此，本文根据CFB锅炉中NOx生成规律及节能型CFB锅炉技术基本理论，结合已有实验室及工业运行数据，从床层温度控制和氧化还原气氛调整等角度，论证了该技术在强化CFB锅炉NOx低排放性能上具有一定的优势。
수착신적연매전참과로담양화물(NOx)배방표준적제정，순배류화상(CFB)과로 NOx배방공제월발수도중시。청화대학개발적기우류태중구적절능형 CFB 과로기술，인기유효해결료원유 CFB 과로엄용전솔고、로당마손엄중、연소효솔편저등문제，이득도일정규모적추엄응용。동시，해기술재NOx초저배방방면야존재일정잠재우세。위차，본문근거CFB과로중NOx생성규률급절능형CFB과로기술기본이론，결합이유실험실급공업운행수거，종상층온도공제화양화환원기분조정등각도，론증료해기술재강화CFB과로NOx저배방성능상구유일정적우세。
Due to the new NOx national emission regulation,it is more and more significant to reduce the NOx emis-sion. By reconstructing the fluidization state of gas-solid flow in the CFB furnace,the low energy consump-tion(LEC)CFB boiler was developed and popularized so that the problems of high auxiliary power,serious wear of water-wall and low combustion efficiency could be solved. However,it is still uncertain to evaluate the influence of the technology on NOx emission. Therefore,the NOx generation theory and the main principle of LEC CFB are firstly introduced based on the existing theory and the experimental results. Viewing from the factors of bed temperature and oxidizing-reducing atmosphere,it is demonstrated that the LEC CFB technology has a potential advantage on NOx emission.