加装低温省煤器后锅炉尾部90°弯道流场的数值模拟

详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文

英文篇名：The flow field numerical simulation of economizer 90 degree curved tail flue of boiler after 中文刊名：节能 英文刊名：Energy Conservation 作者：张燕 英文作者：ZHANG Yan(Chengxin Green Integration Co.Ltd. ; Xiamen 361006 ; China) 中文关键词：尾部烟道 ; 低温省煤器 ; 数值模拟 ; 结构优化 英文关键词：tail flue ; low-temperature economizer ; numerical simulation ; structure optimization 出版日期：2013-02-15 机构：成信绿集成股份有限公司; 年：2013 期：02 出版单位：节能

摘要

为解决某电厂300MW机组锅炉低温省煤器布置问题,通过分析现场情况,提出在锅炉尾部90°弯道出口附近布置低温省煤器方案,并使用Fluent软件对锅炉尾部90°弯道内烟气流场进行了三维数值模拟,并对尾部烟道的结构进行了优化。为低温省煤器的布置创造了条件。对同类型电厂改造具有一定的借鉴意义。
In order to solve the layout problem of low-temperature economizer for 300MW units in a power plant,the layout scheme of low-temperature economizer in 90 degree curved tail flue exit of boiler is proposed through analytical site condition,add numerical simulation on gas flow field in 90 degree curved tail flue of boiler is carrid out by FLUENT software and the relational structure optimization is achieved in this paper.The studies indicates that vortex is created in 90 degree curved tail flue of boiler,and increase the curve flaring size into a limited space can make the flue gas velocity tend to be uniform in and around curve.Created conditions to arrangement of low-temperature economizer.And it can serve as a reference for the retrofit of the power plants of the same type.

引文

[1]叶江明.电站锅炉原理及设备[M].北京:中国电力出版社,2007.
    [2]张永祥,陈鸿汉.多孔介质溶质运移动力学[M].北京:地震出版社,2000.
    [3]林瑞泰.多孔介质传热传质引论[M].北京:科学出版社,1995.
    [4]窦文宇,艾卫国,周月桂,等.HG-2008/18.2-YM2切向燃烧锅炉水平烟道内烟气偏差的模化试验研究[J].热力发电,2000,(5):21-24.