引增合一在锅炉节能减排改造的研究应用  

Research and application of combining induced draft fan and pressurized fan in thetransformation of energy conservation and emission reduction for boiler

作　　者：曲胜男 QU Shengnan(Power Company of Electricity Supply Co.,Ltd.,CNPC)

机构地区：[1]中国石油集团电能有限公司供电公司

出　　处：《石油石化节能与计量》2024年第7期32-36,共5页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：目前国家对于火力发电厂大气污染物排放标准要求越来越严格。按照最新的环保指标要求,火力电厂发电机组必须进行“超低排放”的改造,使火力电厂发电机组大气污染物排放的浓度达到国家的排放标准。我国火力发电厂有很大一部分的湿法脱硫系统不是与机组同期建设的,为了攻克脱硫系统的阻碍,在以前的改造中,脱硫的增压风机都与锅炉的引风机串联运行;但经过火电厂“超低排放”的改造后烟道的阻力增大了,致使原有的引风机出力不足。为此对锅炉引风系统进行优化设计,采取引增合一技术方案,既简化了烟风系统、节省投资,同时节约了厂用电,对同类型电厂节能改造有一定的借鉴作用。At present,the national requirements of air pollutant emission standards in thermal power plants have been becoming more and more strict.According to the index requirements of the latest environmental protection,the generating units of thermal power plant must be carried out the transformation of"ultra-low emission",which makes the concentration of air pollutants emissions by the generating units of thermal power plant meet the national emission standards.What’s more,a large part of the wet desulfurization system in China's thermal power plants will not be built at the same time with the units.In order to overcome the obstacles of the desulfurization system in the previous transformation,the pressurized fan of desulfurization has been operated in series with the induced draft fan of the boiler.However,after the transformation of"ultra-low emission"for thermal power plant,the resistance of flue has increased,resulting in the insufficient output of the original induced draft fan.Therefore,the induced draft system of the boiler has been optimized and designed.Adopting the technological scheme of combining induced draft fan and pressurized fan,which can not only simplify the flue gas system,save investment and electricity,but also provides a certain reference role for the energy conservation transformation of the same type of power plant.

关 键 词：锅炉 超低排放 烟气系统 引增合一 引风机 增压风机 

分 类 号：X773[环境科学与工程—环境工程] TM621.2[电气工程—电力系统及自动化]