垃圾焚烧炉后拱角度数值模拟研究  

Numerical Simulation of Rear Arch Angle in a Municipal Solid Waste Incinerator

作　　者：曾纪进 段翠九[2,3] 陈雷 张衍国[3] 

机构地区：[1]中德(中国)环保有限公司,北京100142 [2]福建省丰泉环保控股有限公司,福建福州350007 [3]清华大学热能工程系,北京100084

出　　处：《工业锅炉》2015年第2期6-8,共3页Industrial Boilers

摘　　要：使用Fluent模拟软件,针对后拱角度这一参数展开数值模拟,结果表明:后拱角度这一参数对机械炉排炉的炉膛内流场分布影响较大;后拱角度分别为9°、12°和15°时,随后拱角度的增加前拱下方处涡流增强,对垃圾焚烧产生有利影响;后拱角度分别为15°、17°和20°时,随后拱角度增加,后拱侧二次风口处形成的涡流出现减弱趋势,不利于此处的O2和可燃气体混合。Using Fluent software as a numerical tool to carry out numerical simulation research of rear arch angle,achieve some results as follow. Rear arch angle can influen the flow field in municipal solid waste incinerator directly. With the rear arch angle increasing from 9°,12°to 15°respectively,the vortex intensity becomes stronger under front arch,and it is good for combustion of waste. But with the rear arch angle increasing from 15°,17° to 20°,the vortex intensity is weakening beside secondary air outlet,and it is bad for the mixing of oxygen and flammable gas.

关 键 词：机械炉排炉 后拱角度 流场分布 涡流 

分 类 号：TK229.92[动力工程及工程热物理—动力机械及工程]