600MW机组锅炉分隔屏过热器变工况壁温分析  

ANAMSIS OF TUBE-WALL TEMPERATURE FOR SUPERHEATER WITH DIVIDING PANEL UNDER OFF -DESIGN CONDI-TION OF 600 MW UNIT'S BOILER

作　　者：余艳芝[1] 唐必光[1] 华立新 王志民 陶生智 

机构地区：[1]武汉大学,湖北武汉430072 [2]武汉锅炉股份有限公司,湖北武汉430070

出　　处：《热力发电》2006年第12期64-66,共3页Thermal Power Generation

摘　　要：通过对600 MW机组四角切圆燃烧锅炉的前屏过热嚣在BMCR、BRL(不投油最大稳燃负荷)、100％ECR、滑压75％、滑压50％、高压加热器切除6种典型工况的三维壁温计算,得到了各工况下前屏过热器典型三维壁温分布及最高壁温高发生的部位和最高壁温值。根据分隔屏过热器的壁温计算结果,对过热器的设计和选材提出了优化设计方案。Through three-dimensional tube - wall temperature calculation of the front panel superheater for a tangential firing boiler of 600 MW unit under six operating con-ditions,namely BMCR,BRL, 100 % ECR, 75 % sliding pressure. 50 % sliding pressure, and cut - off of the high - pressure beater, a typical three - dimensional tube - wall temperature distribution of the front panel superheater, and positions at which the highest tube - wall temperature being occurred, as well as values of the highent tube - wall temperature under various operating conditions have been obtained. Based on results of calculating the tubewall temperature of the superheater with dividing panel,a optimi-zing design scheme has been put forward for designing the superheater and selecting the materials used.

关 键 词：锅炉 四角切圆燃烧 分隔屏过热器 热偏差 三维壁温计算 

分 类 号：TK223.3[动力工程及工程热物理—动力机械及工程]