摘要
通过对比试验分析了同轴平行射流烧嘴喷头结构对辐射管管温分布的影响规律,结果显示空气出口速度和煤气出口速度以及一二次进风比例的选择对管温分布的影响最大。随着烧嘴空气出口速度的增加,辐射管前部段温度上升,尾部段温度下降。随着烧嘴煤气出口速度的降低,辐射管前部段温度上升,辐射管尾端变化情况不大。烧嘴空气和煤气出口速度相近时,燃烧火焰拉长。烧嘴二次风比例增加,辐射管管温存在下降趋势,烧嘴一二次煤气比例对辐射管表面温度均匀性影响较小。
By comparative test on the surface temperature distribution of W-type radiant tuber with different burner structure,the main factors having effect on tube temperature uniformity for coaxially parallel jet burner are analyzed.The results show that the temperature of forepart tuber elevates while the temperature of posterior tube decreases with increase of gas speed; at the same time,the temperature of forepart tuber decreases while the temperature of posterior tube changes very little with increase of gas speed.When the proportion of second air increases,the tuber temperature decreases; however,the proportion of second gas has little effect on it.
出处
《工业加热》
CAS
2013年第5期1-3,共3页
Industrial Heating
关键词
辐射管
烧嘴
温度分布
试验
radiant tube
burner
temperature distribution
experiment
