工业燃煤锅炉回转式空气预热器防堵提效技术研究  

Technical Research on Antiblocking and Efficiency Improvement of Rotary Air Preheater for Industrial Coalfired Boilers

作　　者：吴涛 贺宇清 刘元德 傅文才 康强 WU Tao;HE Yuqing;LIU Yuande;FU Wencai;KANG Qiang(Jiangxi Electric Power Co.Ltd.,Jingdezhen Power Plan,Jingdezhen 333000,China;Beijing Huanengda Power Technology Co.Ltd.,Beijing 100045,China)

机构地区：[1]国家电投集团江西电力有限公司景德镇发电厂,江西景德镇333000 [2]北京华能达电力技术应用有限责任公司,北京100045

出　　处：《工业加热》2024年第7期27-30,共4页Industrial Heating

摘　　要：工业锅炉所采用的空气预热器大致可以分为管式和回转式两种,其中回转式空气预热器主要通过再生方式传递热量,烟气与空气交替流过受热面,当烟气流过时,热量从烟气传递给受热面,受热面温度升高,并积蓄热量,当空气再流过时,受热面将积蓄的热量放给空气。回转式空气预热器具有质量轻、布置灵活、传热面密度高等优势。如果空气预热器堵塞,则引风机的声音会变大,风温会逐渐下降,排烟口温度会逐渐升高,很容易造成锅炉熄火。随着技术的不断完善与创新使得工业燃煤锅炉回转式空气预热器的防堵和提效变得更加全面和多样化。综合分析了燃煤锅炉的基本原理以及结构,探讨了回转式空气预热器在燃煤锅炉种的应用作用,同时分析了空气预热器存在的阻塞问题以及其对锅炉运行的不良影响,结合现有的防堵提效技术进行介绍,并对未来做出展望,为工业燃煤锅炉的清洁高效运行和环境保护贡献更大的力量。The air preheater used in industrial boilers can be roughly divided into tubular and rotary two types,of which the rotary air preheater mainly transfers heat through regeneration,the flue gas and air alternately flow through the heating surface,when the flue gas flows,the heat is transferred from the flue gas to the heating surface,the heating surface temperature rises,and the heat is stored,when the air flows again,the heating surface will save the heat to the air.The rotary air preheater has the advantages of light weight,flexible arrangement and high heat transfer surface density.If the air preheater is blocked,the sound of the induced draft fan will become louder,the wind temperature will gradually decrease,and the smoke outlet temperature will gradually increase,which is easy to cause the boiler to stall.With the continuous improvement and innovation of technology,the anti-blocking and efficiency improvement of rotary air preheater of industrial coal-fired boiler has become more comprehensive and diversified.It comprehensively analyzes the basic principle and structure of coal-fired boilers,discusses the application role of rotary air preheater in coal-fred boilers,analyzes the blockage problem of air preheater and its adverse impact on boiler operation,introduces the existing anti-blockage and efficiency technology,and makes prospects for the future.Contribute more to the clean and efficient operation of industrial coal-fired boilers and environmental protection.

关 键 词：工业燃煤锅炉 回转式空气预热器 防堵提效技术 

分 类 号：TK229.6[动力工程及工程热物理—动力机械及工程]