屏式过热器三维管壁温度分布计算方法  

Calculation Method of Three-dimensional Temperature Distribution of Superheater

作　　者：王芳[1] 唐必光[1] 余艳芝[1] 李冰[1] 

机构地区：[1]武汉大学

出　　处：《电站系统工程》2004年第2期19-20,共2页Power System Engineering

摘　　要：针对目前大型煤粉锅炉屏式过热器管壁温度计算不准确的问题,提出了屏式过热器三维管壁温度计算方法。该方法考虑烟气温度分布的不均、沿烟气流向和蒸汽流向的传热,计算出管组中管壁各点的温度,为管壁温度监测提供依据。At present, the method for calculating the tube wall temperature in a furnace chamber is not exact. So a new program for calculating the normal three-dimensional temperature of superheater is considered. The distributing uniformity of gas temperature and the heat-exchange of direction following gas and steam have been thought in the new program to calculate tube wall temperature. Furthermore the program has given basis in the inspection.

关 键 词：煤粉锅炉 屏式过热器 炉膛 管壁温度 三维数值计算 计算方法 

分 类 号：TK229.63[动力工程及工程热物理—动力机械及工程]