武汉科技大学学报(自然科学版)
武漢科技大學學報(自然科學版)
무한과기대학학보(자연과학판)
JOURNAL OF WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
6期
444-449
,共6页
布袋除尘器%煤气流%速度场%质量流量%数值模拟
佈袋除塵器%煤氣流%速度場%質量流量%數值模擬
포대제진기%매기류%속도장%질량류량%수치모의
bag-type dust filter%gas flow%velocity field%mass flux%numerical simulation
采用Fluent软件模拟高炉布袋除尘系统中煤气主管道及箱体内的速度场和流场。数值计算结果表明,随着煤气在主管道中的深入,其速度总体上呈减小趋势;距离煤气主管入口越远,箱体煤气流量越大,但管道直径发生变化处,箱体煤气流量会发生突变;主管入口煤气总流量和密度对进入各个箱体的煤气流量分布影响不大,而主管道直径则对煤气在各个箱体的分布规律影响较大。
採用Fluent軟件模擬高爐佈袋除塵繫統中煤氣主管道及箱體內的速度場和流場。數值計算結果錶明,隨著煤氣在主管道中的深入,其速度總體上呈減小趨勢;距離煤氣主管入口越遠,箱體煤氣流量越大,但管道直徑髮生變化處,箱體煤氣流量會髮生突變;主管入口煤氣總流量和密度對進入各箇箱體的煤氣流量分佈影響不大,而主管道直徑則對煤氣在各箇箱體的分佈規律影響較大。
채용Fluent연건모의고로포대제진계통중매기주관도급상체내적속도장화류장。수치계산결과표명,수착매기재주관도중적심입,기속도총체상정감소추세;거리매기주관입구월원,상체매기류량월대,단관도직경발생변화처,상체매기류량회발생돌변;주관입구매기총류량화밀도대진입각개상체적매기류량분포영향불대,이주관도직경칙대매기재각개상체적분포규률영향교대。
T he velocity field and flow field of the gas in main pipelines and cabinets of the bag‐type dust collecting system for blast furnace were simulated by the software package Fluent .Numerical compu‐ting results show that the gas velocity decreases and gas flux in the cabinet increases overall along the main pipe ,but gas flux in the cabinet changes sharply at the point w here the pipe diameter changes . Total flux and density of the gas in main pipe inlets have no obvious influence on the gas flow distribu‐tion in all the cabinets ,w hile the diameter of main pipe has a significant impact on the gas distribution regularity .