同心反切燃烧方式的气固两相流动特性实验研究

An Experimental Study of the Gas solid Duel phase Flow Characteristics of the Reverse Tangential Firing System(CFS II)

针对切向燃烧锅炉燃用劣质煤时的稳燃及水冷壁高温腐蚀等问题 ,采用PDA测量系统 ,对四角切圆锅炉中一、二次风同心反切和同心同向燃烧方式进行了气固两相流动特性的实验研究。结果表明 ,与同心同向燃烧方式相比 ,同心反切燃烧方式的气固两相流动特性使其在稳燃、低NOx排放、防结渣。

Low quality coal fired boilers operating in a tangential firing mode often suffer from such problems as a deteriorating flame stabilization and water wall high temperature corrosion. With respect to the above cited issues an experimental study was conducted of the gas solid dual phase flow characteristics of the Tangential firing system (CFS I) and the reverse tangenfial firing system (CFS II) with the help of PDA (particle dynamic analyzer) system. The study results show that as compared to the CFS I system the CFS II system enjoys a better performance as regards the flame stabilization, low NOx emissions, heating surface slagging and high temperature corrosion.