300MW循环流化床锅炉热平衡特性研究  

Characteristic Study of Heat Balance on 300 MW CFB Boiler

作　　者：尹刚[1] 鲁佳易[2] 刘汉周[2] 卢啸风[2] 

机构地区：[1]东方汽轮机有限公司,四川德阳618000 [2]重庆大学燃烧环保实验室,重庆400030

出　　处：《锅炉技术》2008年第6期31-35,74,共6页Boiler Technology

基　　金：国家"十一五"科技支撑计划子课题(2006BAA03B02-06)

摘　　要：在比较了目前世界上进行CFB锅炉热平衡测试的标准的基础上,采用中国的DL/T964-2005标准对国内某300 MW CFB锅炉的热平衡研究,主要结论如下:300 MW CFB锅炉烧无烟煤在司炉习惯性操作下的热效率高达91.8%,在Ca/S摩尔比为1.567的情况下,锅炉的脱硫效率高达91.51%,同时NOx的排放浓度仅为79 mg/Nm3。并分析了排烟损失大的原因,研究了不同负荷下锅炉各部分热负荷比例分配关系和厂用电的情况。On the basis of comparing the current thermal balance testing standards of CFB boilers in world, this paper do a research on heat balance of 300 MW CFB boiler in china by the standards of DL/T964-2005. The main conclusions are as follows; thermal efficiency of the burning anthracite CFB boiler are as high as 91.8 % under the condition of customary operation. The desulfurization efficiency could reach 91. 51 % under the condition of the Ca/S molar ratio = 1. 567. The NO, emission concentration is 79 mg/Nm^3. Analysis of the cause of large heat loss of exhaust gas. Then research the relationship of heat absorption proportions of each part of boiler （furnace, external heat exchanger, flue tail） with the load and the proportion of plant electrical consumption.

关 键 词：热平衡 标准 锅炉效率 热负荷 厂用电 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程]