火电厂锅炉高排烟温度剖析及处理对策研究

The high exhaust temperature analysis and study for coal-fired power plant

排烟热损失是目前火电厂节能降耗的重心之一,高排烟温度不仅大大增加了排烟热损失,降低了锅炉效率,增加了尾部烟道再燃烧的风险,同时对脱硫系统的正常运行也有一定的影响。文章通过对可能影响排烟温度的相关因素进行逐一分析研究,探讨从机组运行调整及设备改造的角度在条件允许的前提下尽可能降低排烟温度水平的可能。

Boiler exhaust gas heat losses is the one focus of energy efficient in the power plant,the high gas temperature can increased exhaust gas heat loss,and also have a certain degree influence on desulfurization system.This paper analyses correlation factors on the exhaust gas heat losses,and study the possibility that can reduce exhaust temperature levels on the premise of condition permitting.