超临界机组给水自动控制策略分析与应用  

Analysis and Applications of Strategy for Automatic Feedwater Control of Supercritical Unit

作　　者：李军[1] 孟祥荣[1] 郎澄宇[1] 丛壮[1] 于金栋 史昱[3] 

机构地区：[1]山东电力研究院 [2]华电国际邹县发电厂 [3]山东交通学院

出　　处：《电站系统工程》2011年第3期55-57,共3页Power System Engineering

摘　　要：根据超临界直流炉的结构特点,有针对性地分析了汽水分离器水位控制及给水控制的相应特性。分析起动时分离器贮水箱水位控制,其与汽包水位控制有相似之处,但过程更为复杂。并分析机组干态时,如何结合过热器蒸汽温度对给水控制进行优化控制。实际运行后取得良好效果。Regarding the structure characteristics of supercritical once-through boiler,the strategy of water-level control in water storage tank of the separator and feedwater control was analyzed.The water-level control is similar to that in boiler drum,but the process is more complicated,approach to the technical features of thermal power control for ultra-supercritical units has been carried out.Considering superheated steam temperature,the corresponding approaches of feedwater control are carried out when unit is working in dry state.Engineering application has achieved good result.

关 键 词：超临界直流炉 给水自动拉制 水位控制 过热蒸汽温度 

分 类 号：TK223.7[动力工程及工程热物理—动力机械及工程]