超(超)临界直接空冷机组空冷系统模型建立  

Building the Model of Air-cooling System in Supercritical Direct Air Cooling Unit

作　　者：卢日时[1] 赵云云[1] 

机构地区：[1]哈尔滨汽轮机厂辅机工程有限公司,哈尔滨150090

出　　处：《机械工程师》2013年第5期57-59,共3页Mechanical Engineer

摘　　要：百万空冷机组在发电煤耗、减少污染物排放、节约水资源等方面具有明显的优势,将是我国未来空冷机组建设的优选。通过研究分析空冷凝汽器全工况运行变化规律,建立不同环境温度下汽轮机排汽压力、凝汽器散热面积、迎面风速(风机入口风速)之间关系的研究模型,并优化ITD值。通过某电厂1000MW空冷机组数据验证了模型的准确性,根据模型计算出最优ITD值,为直接空冷系统的优化运行和经济运行提供理论依据。1000MW air-cooled unit has obvious advantage in power generation coal consumption, reducing emissions and save water resources. It will be the best choice in country＇s air cooling unit construction. The relationship model is established about environmental temperature, steam turbine exhaust steam pressure, condenser cooling area, head on wind speed （fan inlet wind speed）, and optimization ITD value. A 1000 mw air cooling unit data is used to show the accuracy of the models, which can be used to calculate the optimal ITD value. The results will provide theoretical basis for direct air cooling system optimization and economy operation.

关 键 词：直接空冷系统 数学模型 百万机组 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]