火电厂入炉煤采样方案的制定与调整  

Formulation and adjustment of sampling scheme for feed coal in power plant

作　　者：李海荣[1] 王锋涛[1] 张太平[2] 

机构地区：[1]国网河南省电力公司电力科学研究院,河南郑州450052 [2]湖北省电力试验研究院,湖北武汉430077

出　　处：《煤质技术》2015年第5期13-15,27,共4页Coal Quality Technology

摘　　要：基于火电厂需根据自身燃煤特性、采样机性能等情况制定专门的入炉煤采样方案,从初级子样方差、采样单元子样数、采样方案调整、全水分采样等方面探讨了火电厂采样方案的制定与调整,指出应重视采样精密度的核验工作,并根据初级子样方差和最小子样数的要求及时调整采样方案。Because that the coal-fired power plants need to formulate sampling scheme plan of coal as fired according to its own combustion features and sampling machine performance,the formulating and adjusting of sampling plans were discussed from aspects such as primary increment variance,number of increment of sampling unit,sampling scheme adjustment and sampling of total moisture.It is pointed out that attention should be paid to work of checking the sampling precision and sampling scheme should be adjusted in time according to the requirements of primary increment variance and the number of minimum increment.

关 键 词：入炉煤 采样方案 采样精密度 机械采制样装置 初级子样方差 采样单元 子样数 

分 类 号：TQ531[化学工程—煤化学工程]