大型火电机组制粉系统运行优化  

Operation Optimization of the Pulverizing System in Large Thermal Power Units

作　　者：李静[1] 梁学东 孙中 赵明 邱亚林 向文国[1] 

机构地区：[1]东南大学能源与环境学院,南京210096 [2]华能集团金陵发电有限公司,南京210034 [3]云南电网有限责任公司电力科学研究院,昆明650214

出　　处：《发电设备》2015年第5期326-330,共5页Power Equipment

摘　　要：对某电厂1 000 MW火电机组实际运行数据进行分析,发现机组相同的发电负荷下,各磨煤机总给煤量波动范围较大,表明各磨煤机负荷的分配影响着机组的运行效率。针对该机组提出了制粉系统优化运行方案,优化各磨煤机给煤量,并进行了验证性试验。结果表明：机组负荷在700~900 MW时,优化分配各磨煤机给煤量,锅炉效率得到提高。By analyzing the operation data of a 1 000 MW thermal power unit, the feeding quantity of each coal mill was found to be fluctuating widely at the same generation load, indicating that the load distribution among various mills would affect the operation efficiency of the power unit. To optimize the output of each mill, corresponding countermeasures were proposed for optimization of the pulverizing system, to which validation experiments were conducted. Results show that the boiler efficiency can be increased when the unit load is in 700- 900 MW after optimization of the mill load distribution.

关 键 词：制粉系统 数据处理 运行优化 试验 节能 

分 类 号：TK223.24[动力工程及工程热物理—动力机械及工程]