如何清除锅炉受热面烟火侧的灰污染,长期以来一直是个重要课题,尤其在燃用煤种多变的情况下更显其迫切性。受热面上灰渣的积聚,导致热阻增大,锅炉热效率降低,能耗增加。严重积灰时,将使出力下低,金属腐蚀,直至爆管停炉。这都直接威胁着锅炉机组的安全经济运行。从三十年代开始,国外即采用清灰剂清除锅炉受热面上的灰垢。近些年来国内也逐渐在一些工业锅炉上应用清灰剂,均取得良好效果。从电力行业看,我国一些发电厂中的大中型锅炉机组(主要是早期产品),有相当一部分是没有清灰装置的,只有少部分锅炉在原设计或后来运行过程中加装有蒸汽吹灰器。但 How to remove the ash pollution on the pyrotechnic side of the heated surface of boilers has long been an important issue, which is even more urgent in the light of the ever-changing coal type. Heat accumulation of ash on the surface, resulting in increased thermal resistance, lower boiler thermal efficiency, increased energy consumption. When serious fouling, will make the force low, metal corrosion, until the squirt shutdown. This is a direct threat to the safe and economic operation of the boiler unit. From the thirties, foreign countries that the use of cleaning agent to remove the ash on the heating surface of the boiler. In recent years, China has also been gradually applied some industrial boiler cleaning agent, have achieved good results. From the perspective of the power industry, a large number of large and medium-sized boiler units (mainly early products) in some power plants in China do not have a cleaning device. Only a few boilers are equipped with steam sootblowers in the original design or later operation . but