巢湖学院学报
巢湖學院學報
소호학원학보
CHAOHU TEACHERS COLLEGE JOURNAL
2014年
6期
104-107
,共4页
潘存华%彭荣%李德
潘存華%彭榮%李德
반존화%팽영%리덕
飞灰可燃物%煤粉细度%CO含量%管壁超温
飛灰可燃物%煤粉細度%CO含量%管壁超溫
비회가연물%매분세도%CO함량%관벽초온
combustible ash%coal fineness%CO content%the excess temperature of the tube walls
针对某电厂600MW对冲燃烧型锅炉运行出现的问题,理论分析结合试验调整,解决运行出现的问题。结果表明:减小磨煤机分离器挡板开度及燃尽风的旋流强度有助于煤粉在炉内的燃烬:合理的提高运行氧量,可以减少炉膛出口CO数值:调平一次风风速、减小炉内温度场偏差及降低炉膛出口烟气温度可以降低过热器、再热器管壁温度,有效解决管壁超温现象。
針對某電廠600MW對遲燃燒型鍋爐運行齣現的問題,理論分析結閤試驗調整,解決運行齣現的問題。結果錶明:減小磨煤機分離器擋闆開度及燃儘風的鏇流彊度有助于煤粉在爐內的燃燼:閤理的提高運行氧量,可以減少爐膛齣口CO數值:調平一次風風速、減小爐內溫度場偏差及降低爐膛齣口煙氣溫度可以降低過熱器、再熱器管壁溫度,有效解決管壁超溫現象。
침대모전엄600MW대충연소형과로운행출현적문제,이론분석결합시험조정,해결운행출현적문제。결과표명:감소마매궤분리기당판개도급연진풍적선류강도유조우매분재로내적연신:합리적제고운행양량,가이감소로당출구CO수치:조평일차풍풍속、감소로내온도장편차급강저로당출구연기온도가이강저과열기、재열기관벽온도,유효해결관벽초온현상。
As for the operating problems of the opposed firing boiler for 600 MW units, this paper uses theoretical analysis and test adjustments to solve the problems. The results show the following: it is helpful to burn coal in the furnace through reducing the opening of the separator baffle in the coal mill and the swirl intensity of over-fire air; it can reduce the CO value in the fur-nace through increasing operational oxygen; It can reduce the temperature of the tube walls in superheaters and reheaters solve the excess temperature of the tube walls effectively through moderating the wind speed and reducing the temperature deviation in the furnace and flue-gas temperature.with primary air velocity in leveling,reducing the temperature and deviation of flue gas in firepots.