文献类型：期刊文献

中文题名：多喷嘴对置式气化炉内撞击火焰高度研究

英文题名：Study on the Characteristics of Impinging Flame Height in an Opposed Multi-burner Gasifier

作者：范普兴[1];龚岩[1];张庆[1];郭庆华[1];于广锁[1]

机构：[1]煤气化及能源化工教育部重点实验室(华东理工大学),上海市徐汇区200237

年份：2014

卷号：34

期号：17

起止页码：2761

中文期刊名：中国电机工程学报

外文期刊名：Proceedings of the CSEE

收录：CSTPCD;;EI(收录号：20142717903324);Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金(21176078;21006026);国家重点基础研究计划项目(2010CB227004);中央高校基本科研业务费专项资金资助~~

语种：中文

中文关键词：多喷嘴对置;撞击火焰高度;火焰脉动频率;伪彩色增强;图像分割

外文关键词：opposed multi-burner （OMB）; impingingflame height; flame pulsation frequency; pseudo-colorenhancement; image segmentation

摘要：基于多喷嘴对置式气流床气化热模实验平台,利用侧面高温内窥镜配合工业高速相机,对不同工况下的柴油撞击火焰高度及脉动频率进行了研究。提出了一种基于伪彩色增强的撞击火焰高度图像分割方法。利用工业高分辨率相机和顶部高温内窥镜的组合对结果进行了验证。结果表明,在实验工况下,撞击火焰高度随氧碳比([O]/[C])的升高逐渐上升,但在氧碳比为1.8附近出现转折;提高柴油流量,火焰高度上升明显。氧碳比的升高和柴油流量的增加均使得火焰高度的脉动范围减小,撞击火焰稳定性增强。撞击火焰高度的脉动频率集中在低频区,其主要频率的特征峰保持在10 Hz以内,另外,在3 Hz附近存在一明显的特征峰。氧碳比的升高和柴油流量的增加均使得特征峰的幅值逐渐降低。
Based on the bench-scale opposed multi-burner （OMB） gasifier, impinging flame height and flame pulsation frequency were studied by industrial high speed camera combined with lateral high temperature endoscope. A new approach for flame image segmentation based on the pseudo-color enhancement was proposed. Industrial high resolution camera and top high temperature endoscope were applied to verify the results. In the laboratory operation conditions, with the increase of oxygen carbon atom ratio （[O]/[C]）, the impinging flame height is increased and a turning point appears at [O]/[C] of 1.8. The increase of diesel flow rate results in a relative obvious rise of flame height. Both the increase of [O]/[C] and diesel flow rate diminish the fluctuation range of flame height. The pulsation frequency of flame height is centralized in low frequency area. The characteristic peaks locate within 10Hz, and there is a characteristic peak near 3Hz for all the conditions. With the increase of [O]/[C] or diesel flow rate, the amplitude of characteristic peaks is reduced.