四角切向燃烧锅炉折焰角结构对水平烟道烟速偏差影响的试验研究  

Experimental Research on the Influence of the Furnace Arch on Velocity Deviation in Flue Gas Channel of Tangentially Fired Boiler

作　　者：周月桂[1] 窦文宇[1] 周屈兰[1] 徐通模[1] 惠世恩[1] 

机构地区：[1]西安交通大学

出　　处：《动力工程》1999年第3期7-10,共4页Power Engineering

基　　金：机械部技术发展基金

摘　　要：对引进型６００ＭＷ 机组四角切向燃烧锅炉进行冷态模化试验，系统地研究了不同折焰角结构对水平烟道烟速偏差的影响。试验结果表明：在现有的折焰角结构下水平烟道仍存在较大的气流速度不均匀性。通过折焰角结构进行改进，可以明显减小水平烟道气流速度场的不均匀性，为解决大容量四角切向燃烧锅炉水平烟道流场偏差这一重大技术问题提供了有价值的科学实验数据。Cold modeling test is done in the model of tangentially fired boiler of 600MW unit and the influence of different arch structures on velocity deviation in flue gas channel is systematically researched. The results show that there is large velocity deviation in original arch structure of boilers. Based on original arch structure, new arch structure is put forward and it may obviously meliorate non uniformity of flow field in flue gas channel. It provides valuable scientific experimental data for solution of velocity deviation in flue gas channel of large scale tangentially fired boiler and gives reference to the design and retrofit of boilers. Figs 2, tables 3 and refs 5.

关 键 词：切向燃烧 锅炉 折焰角 水平烟道 烟速偏差 

分 类 号：TK223.2[动力工程及工程热物理—动力机械及工程]