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蒸汽锅炉是通过高温热源的热交换(一般是利用燃料燃烧所产生的热能)将水蒸发为最终所需要的蒸气的承压系统.锅炉运行时,辐射和对流换热面均会出现结渣和积灰现象,严重地降低了锅炉热效率并使烟气温度异常升高,甚至因部分烟道阻塞而使飞灰的颗粒流速增高,导致换热管磨蚀加快,从而危及锅炉的安全运行.因此,必须经常进行清灰、除渣以保持换热管道的清洁.
Steam boilers are pressure-receiving systems that evaporate water to the final required vapor through the heat exchange of high-temperature heat sources (typically using the heat generated by the combustion of the fuel). When the boiler is operating, both slagging and convection heat transfer surfaces The fouling phenomenon seriously reduces the thermal efficiency of the boiler and makes the temperature of the flue gas abnormally increase, and even the particle flow velocity of fly ash increases due to blockage of some flue gases, which leads to the abrasion of the heat exchange tube accelerating, thus endangering the safe operation of the boiler Therefore, Cleaning must be carried out frequently, in order to keep the heat exchange pipe clean.