一起热水锅炉水冷壁管爆管事故刍议

Analysis on a Tube Crack Accident in the Water Wall Tube of the Hot Water Boiler

热水锅炉水冷壁管爆管原因常与水质不良、管道结垢、腐蚀和磨损、热偏差和循环阻力、发生膜沸腾、维护保养不规范、启停频繁等因素密切相关。因此,改善水质,正确维护和保养锅炉,定期排污除垢,低温连续供暖,添加表面活剂,减少摩擦降低水流阻力,是防止水冷壁管爆管故障,延长锅炉寿命的重要措施。

The reasons on the explosion of the water cooled wall tube in the heat water boiler is often related to bad water quality, tube sealing, corrosive wear, heat deviation and circulating resistance increase, happen film boiling, nonstandard maintenance and frequently shut ＆ start. Therefore, the corresponding methods is to improve the water quality, maintain the head boiler in the right way, periodic blow down and scale removal, low temperature continuous heating, additive surface active agent, decrease friction, reduce flow resistance and so on. It is important precautions of accident for explosion tube failure and extend the useful life of the heat boiler.