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DALIAN UNIVERSITY OF TECHNOLOGY Login 中文
周一卉

Associate Professor
Supervisor of Master's Candidates


Gender:Female
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Chemical Engineering
Discipline:Safety Science and Engineering. Chemical Process Equipment
Business Address:Room H403,West Dist.,DUT
Contact Information:13500780440
E-Mail:zflower@dlut.edu.cn
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Current position: Home >> Scientific Research >> Paper Publications

煤粉浓淡空气分级燃烧过程的数值模拟

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Indexed by:期刊论文

Date of Publication:2010-08-15

Journal:动力工程学报

Included Journals:Scopus、ISTIC、CSCD

Volume:30

Issue:8

Page Number:612-616

ISSN No.:1074-7607

Key Words:燃煤锅炉;四角切圆燃烧;煤粉浓淡比;空气分级燃烧;NOx排放量;煤烟排放量;数值模拟

Abstract:采用Fluent 6.3软件,对1台400 t/h四角切圆燃煤锅炉内的煤粉浓淡、空气分级及两者联用等3种燃烧过程进行了数值模拟,分析了煤粉浓淡比对炉内NOx和煤烟生成的影响.结果表明:与原始工况相比,仅采用煤粉浓淡燃烧时,NOx的生成量降低12.6%,但煤烟生成量会增加.当联合使用煤粉浓淡与空气分级燃烧时,随着煤粉浓淡比的增大,NO2生成量逐渐减少,当浓淡比值大于5时,NOx生成量的降低幅度趋于平缓;煤烟生成量随着煤粉浓淡比的增大先减少后增加,当煤粉浓淡比为3~5时,煤烟生成量最少.在两者联用条件下,NOx生成量的降幅可达27.6%,同时煤烟生成量也有所下降,这对锅炉的优化改造有一定的指导作用.