W型火焰锅炉低氮燃烧技术改造研究进展

Research Progress of Low Nitrogen Combustion Technology for W-type Boiler

综述了W型火焰锅炉应用较普遍的低氮燃烧技术,作为W型火焰锅炉低氮燃烧技术改造的基础理论方法。根据五家电厂不同型号的W型火焰炉低氮燃烧技术改造实例来介绍目前W型火焰炉低氮改造研究情况。利用空气分级燃烧技术和燃料分级燃烧技术相配合,为原有锅炉增设燃尽风供应系统,适度下倾二次风的喷射角度,改进燃烧器等方法均可降低W型火焰锅炉的氮氧化物生成量。

Low nitrogen combustion technology for W - type flame boiler are summarized, which are theoretical methods for modification on low nitrogen combustion technology. Five different examples of modification on low nitrogen combustion technology for W-type flame boilers introduce the current development of low-nitrogen combustion technology. Measures for reducing nitrogen oxide production can be classified into several categories, mainly, air classification combustion technology and fuel classification combustion technology, such as exhausted air supply system, improved burner and adjustment of secondary air injection angle.