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水火管快装锅炉制造出厂时,后烟室的二、三回程隔烟墙,一般是用耐火砖直接砌成。笔者对本地区在用水火管快装锅炉进行定期停炉检验时,发现经过一段时间的运行大部分炉的隔烟墙与后管板之间的灰缝和耐火砖,与后管板分离,或裂纹,或脱落,结果烟气不经二、三回程,从一回程出口直接经后管板与隔烟墙之间的间隙排入烟囱,不仅浪费燃料,更主要的是,含大量煤灰颗粒的烟气高速流过后管板与隔烟墙之间的间隙,后管板长期被烟气冲刷和磨损而减薄,严重者减薄量高达8mm/年。导致后管板因强度不足而变形(鼓
Fire hose factory installed when the boiler, after the smoke chamber two or three back to the wall, usually brick directly with refractory bricks. The author of the region in the water tube fast boiler regular shutdown test found that after a period of time running most of the furnace smoke between the wall and the rear tube plate of the seam and refractory bricks, and after the tube plate separation, or Cracks, or fall off, the result of flue gas without two or three return, from a back exit directly through the tube plate and the gap between the smoke into the chimney, not only a waste of fuel, more importantly, with a large amount of soot particles Of the flue gas flows through the gap between the tube plate and the partition wall at high speed. After the tube plate is flushed and frayed by the flue gas for a long time, the thinning amount is as high as 8 mm / year in severe cases. Lead to after the tube plate due to lack of strength and deformation (drums