二次风在层燃炉中的应用已有很长历史,但普遍反映作用不大。列车电站中亦是如此,无论进口捷克机组8.5吨/时锅炉或是国产11吨/时锅炉,原设计的二次风皆因为效果不好而予以废除或加以改造。经过反复的冷态模型试验和热态工业性试验,可以看到,决定二次风作用效果的关键因素是二次风的布置型式和二次风射流的动量流率,而二次风布置不当或动量流率过小正是以往二次风作用不好的根本原因。 The application of the secondary air in the layer burner has a long history, but it is not generally reflected. The same is true of train power stations, regardless of the Czech Republic 8.5 tons / hour boiler or domestic 11 tons / hour boiler, the original design of the secondary air because of ineffective and be abolished or modified. After repeated cold model tests and thermal industrial tests, it can be seen that the key factors that determine the effect of the secondary air are the arrangement of the secondary air and the momentum flow rate of the secondary air jets, and the improper placement of the secondary air Or the momentum flow rate is too small is the root cause of the past secondary air is not good.