工业蒸汽锅炉的爆炸是在锅筒、锅壳及炉胆等较大受压部件破裂时发生的。锅炉内贮存着大量高压饱和水及蒸汽,它们包含很大的能量,锅炉爆炸就是这种能量的一部分瞬时转变为机械功(破坏力)的过程。一、锅炉爆炸的原因和机理1.锅炉爆炸的原因(1)设计错误和制造有缺陷。如结构不合理、错用钢材、壁厚太薄,尤其是焊接质量低劣、锅炉强度不足等因素;(2)违章操作。如超压运行、严重缺水或水垢过厚等,使钢板过热、受压元件强度下降而产生破裂: Explosions in industrial steam boilers occur when large pressure parts such as drums, housings and furnaces break. Large quantities of high-pressure saturated water and steam are stored in the boiler. They contain a great deal of energy. Explosion of the boiler is a process in which part of this energy is instantly converted to mechanical work (destructive power). First, the causes and mechanism of the boiler explosion 1. The reasons for the boiler explosion (1) design errors and manufacturing defects. If the structure is not reasonable, the wrong use of steel, the wall thickness is too thin, especially poor welding quality, boiler strength and other factors; (2) illegal operation. Such as overpressure operation, severe water scarcity or scale too thick, so that the steel overheating, the strength of the compression element decreased rupture: