一、二次风机暖风器疏水改造可行性分析  

The One or Two Fan Heater Drain Feasibility Analysis

作　　者：李业强 

机构地区：[1]大唐七台河发电有限责任公司,黑龙江七台河154600

出　　处：《锅炉制造》2013年第3期26-27,共2页Boiler Manufacturing

摘　　要：东北地区在冬季时为防止一、二次风机入口空气温度过低,对空气预热器造成低温腐蚀,常常采用对入口空气预热的方式。其中采用蒸汽换热的方式较多,为保证加热后的风温和避免暖风器疏水结冰冻管,疏水温度一般控制较高,此项热源如不合理利用将造成较大的经济损失。疏水热量再利用的选择方式,直接影响到机组经济性,如何更合理的利用余热对提高机组效率尤为重要。The northeast areas in the winter time to prevent the one or two fan entrance air temperature is too low, resulting in low temperature corrosion on air preheater, often the entrance air preheating method, which uses the steam heat transfer methods. In order to ensure the heated air temperature and avoid icing tube air heater drain, drainage temperature generally high, the heat source sueh as unrea- sonable use will cause large economic loss. The hydrophobic heat reuse options, directly affect the econo- my of the unit,to a more reasonable use of waste heat to improve the unit efficiency is more important.

关 键 词：暖风器疏水 机组经济性 疏水系统改造 低温腐蚀 

分 类 号：TK223.6[动力工程及工程热物理—动力机械及工程]