微油点火燃烧器煤粉流量分配比例的计算

详细信息    查看全文 | 推荐本文 |

英文篇名：Calculation of Pulverized Coal Flow Distribution Ratio in Ting-oil Ignition Burner 作者：丁历威 ; 李凤瑞 ; 张明 ; 齐晓娟 ; 李磊 英文作者：DING Li-wei1,LI Feng-rui1,ZHANG Ming1,QI Xiao-juan1,LI Lei 2(1.Z(P)EPC Electric Power Research Institute,Hangzhou 310014,China; 2.Z(P) EPC Power Dispatching Center,Hangzhou 310007,China) 关键词：微油点火 ; 燃烧器 ; 煤粉 ; 流量 ; 分配 ; 测量 英文关键词：tiny-oil ignition;burner;pulverized coal;flow;distribution;measurement 中文刊名：ZJDL 英文刊名：Zhejiang Electric Power 机构：浙江省电力公司电力科学研究院;浙江电力调度控制中心; 出版日期：2013-01-25 出版单位：浙江电力 年：2013 期：v.32;No.201 语种：中文; 页：ZJDL201301012 页数：4 CN：01 ISSN：33-1080/TM 分类号：38-40+55

摘要

微油点火技术的关键之一就是在一级套筒中形成一个高煤粉浓度区域,以利于煤粉着火。如何验证是否存在这个区域,对微油点火燃烧器的设计和应用尤为重要。根据微油点火燃烧器技术特点,结合点火试验和数值计算结果,提出火焰形状相似度对比法,量化数值计算精度。在精度达到要求的前提下,提出一种煤粉流量在多级套筒中分配比例的测量方法,已成功应用于准格尔发电厂2号炉微油点火燃烧器。
        One of the keys of the tiny-oil ignition technology is to form a high concentration region of pulverized coal in the first sleeve,which can facilitate the ignition of coal dust.How to verify the existence of the region is very important for the design and application of tiny-oil ignition burner.According to its technical characteristics,in Combination with ignition test and numerical calculation result,similarity comparison method of flame profile is proposed to quantify precision of numerical calculation.When the precision meet the requirement,the measurement method of the distribution proportion of pulverized coal flow in the several sleeves was presented.The method has been successfully applied to tiny-oil ignition burner in unit 2 of the Zhunge′er power plant.

引文

沈明德,颜祝明,熊凯,等.微油点火稳燃技术在600 MW超临界机组上的应用[J].广东电力,2008,21(1):38-41.
    赵家荣.“十一五”十大重点节能工程实施意见读本[M].北京:中国发展出版社,2007.
    潘国传.微油点火燃烧器技术及其应用[J].浙江电力,2006,25(5):16-18,34.
    徐旭常,周力行.燃烧技术手册[M].北京:化学工业出版社,2007.
    江帆,黄鹏.Fluent高级应用与实例分析[M].北京:清华大学出版社,2008.
    B E LAUNDER,D B SPALDING.Lectures in Mathematical Models of Turbulence[M].London,England:Academic Press,1972.
    M M BAUM,P J STREET.Predicting the Combustion Behavior of Coal Particles[J].Combust Sci Tech,3(5):231243,1971.
    S Badzioch,P G W HAWKSLEY.Kinetics of Thermal Decomposition of Pulverized Coal Particles[J].Ind Eng Chem Process Design and Development,9:521-530.
    P CHENG.Two-Dimensional Radiating Gas Flow by a Moment Method[J].AIAA Journal,2:1662-1664.
    Gosman A D,Ioannides E.AIAA 19 th Aerospace Science Meeting[M].1981.
    周力行.湍流两相流动与燃烧的数值模拟[M].北京:清华出版社,1991.