入炉煤低位热值实时计算方法及应用  

Research and application of real-time calculation method for burning coal's low calorific value

作　　者：谢云明 骆晓玲[1] 王智微[3] 马朋波[3] 申大伟[2] 徐创学[3] 赖菲[3] 

机构地区：[1]青岛科技大学自动化与电子工程学院,山东青岛266061 [2]华能山东发电有限公司,山东济南250001 [3]西安热工研究院有限公司,陕西西安710032

出　　处：《热力发电》2014年第4期124-127,共4页Thermal Power Generation

摘　　要：基于对入炉煤低位热值实时计算方法的不确定度分析,确定了对入炉煤低位热值不确定度影响较大的因素为煤流量、汽轮机热耗率和锅炉效率。将某300MW机组实时计算的入炉煤低位热值与化验的入炉煤低位热值进行对比,以验证实时计算方法的正确性,并对比较偏差进行了分析,表明计算结果符合入炉煤低位热值合成不确定要求。同时,提出了降低主要影响参数不确定的措施。On the basis of measurement uncertainty analysis for realtime online calculation method for burning coals＂ low calorific value, the most important parameters affecting the coals＂ low calo rific value were ascertained. Taking the burning coal of a 300 MW unit boiler as the example,the realtime calculated net calorific value was compared with the value obtained from tests in labora tory. Analysis on their deviations shows that, the online calculated results meet the combined un certainty requirements for low calorific value of burning coals. At last, countermeasures to reduce the uncertainty of major parameters were put forward.

关 键 词：入炉煤 低位热值 实时计算 运行数据 不确定度 

分 类 号：TK212[动力工程及工程热物理—动力机械及工程]