锅炉启动过程中高温再热器的壁温特性  

THE TEMPERATURE CHARACTER OF HT REHEATER WALL IN THE PROCESS OF BOILER'S START-UP

作　　者：吴东垠[1] 程亮[1] 仝利娟[1] 马玉峰[2] 李中树[3] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049 [2]胜利发电厂,山东东营257087 [3]胜利石油管理局,山东东营257000

出　　处：《工程热物理学报》2008年第9期1599-1602,共4页Journal of Engineering Thermophysics

摘　　要：锅炉的启动方式对高温再热器的壁温有较大影响,试验发现:当锅炉冷态启动时,高温再热器的管壁温度较低;但锅炉热态启动时它的壁温较高。因此,单台磨煤机的给煤量不能增长过快,并尽量投用对称位置的磨煤机,防止高温再热器单侧管壁温度偏高。文中同时提出了再热器炉外运行测点温度极限值的计算方法,对再热器材质的选择和运行监视均具有一定的指导意义。The boiler s start-up mode has great impact on the temperature of HT(high-temperature) reheater s wall.The trials indicate that in the Cold start-up mode,the wall of HT reheater is at lower temperature level,but in the hot start-up mode,its wall temperature is higher.Therefore,the coal volume per mill can t increase sharply,and the mills with symmetric should be located for in order to prevent unilateral wall temperature turning higher as far as possible.Synchronously,in the paper,a computational method of ...

关 键 词：锅炉 启动过程 高温再热器 管壁温度 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]