摘要
通过建立数值模型进行编程计算,分析了锅炉过热器/再热器管道在不同的管道几何尺寸、烟气温度、蒸汽流量和温度下,各个界面热流密度的变化情况。通过回归分析得到了热流密度与管道内壁侧氧化层厚度和运行时间的关系表达式,即热流密度的评估关系式。
The changes of the heat fluxes on interfaces of the superheater/reheater tubes with different tube geometries,flue gas temperatures,steam flows and temperatures were analyzed using the established numerical model and the corresponding program.The relationship expressions of the heat flux versus the tube imner-wall oxide scale thickness and operation time were obtained by regression analyses.The results provide a theoretical basis for the design and operation of the power plant.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2012年第1期39-45,共7页
Journal of Jilin University:Engineering and Technology Edition
基金
中央高校基本科研业务费专项项目(09QX61)
关键词
动力机械工程
锅炉过热器
再热器
热流密度
氧化层
运行时间
评估
power machniery and engineering
superheater
reheater
heat flux
oxide scale
operation time
assessment
