直接空冷机组冷端传热特性研究  

Research on the heat transfer performance of cold end system of direct air-cooling units

作　　者：孙东海[1] 张树芳 申哲巍[1] 

机构地区：[1]华北电力大学电站设备状态监测与控制教育部重点实验室,河北保定071003

出　　处：《节能》2012年第8期20-24,2,共5页Energy Conservation

摘　　要：以直接空冷机组冷端系统传热特性为研究对象,充分考虑排汽管道压损、水蒸气压差对排汽压力的影响,建立直接空冷机组冷端换热数学模型,并对影响空冷凝汽器传热的因素进行研究分析。研究结果对直接空冷机组冷端系统保持最佳运行状态,保障凝汽器的安全和经济运行具有重要的指导作用。Aiming at the heat transfer performance of cold end system of direct air-cooling units,this paper,in which fully considered loss of pressure in exhaust steam pipe and pressure difference of steam,educed the heat transfer mathematical model of cold end system of direct air-cooling units and studied the influencing factor of heat transfer on air-cooling condenser.The conclusions have certain guiding significance for keeping the optimum running state,guaranteeing the safety and economic operation of condenser.

关 键 词：直接空冷 冷端 传热特性 凝汽器 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]