摘要
本文在火用经济分析的基础上，得出了产汽设备和汽轮机之间的蒸汽管线优化设计的目标函数即管线系统的年度总费用方程。算出了在目前的经济条件下，中压蒸汽（３．５ＭＰａ，４３５℃）的最优流速是１２ｍ／ｓ左右，且随着材料价格与电价的比值的增大而增大。分析了管线长度对管网中蒸汽最优流速的影响，得出了管线短的，蒸汽流速要适当加大，管径减小；管线长的，蒸汽流速要适当减小，管径加大；随着不同管线长度差距加大。对蒸汽管网系统进行优化设计得到的经济效益更加显著的结论。
The objective function of optimal design, a cost equation for a single steam pipeline based on exergyeconomical analysis, was proposed. The optimal velocity of middle pressure steam was about 12 m/s in the present condition. It would be increased with the raising of the ratio of material price to electricity price. The influence on optimal velocity of pipeline length in a pipeline network is analyzed. The results show that the velocity of steam would increase with the decrease of a pipeline length, and the ...
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1997年第12期22-27,共6页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金
关键词
蒸汽管线
经济分析
优化设计
流速
steam pipeline
exergyeconomical analysis
optimal design
velocity
