Boiler tube cleaning by definition refers to remove an internal scale boiler chemicals, widely used in electric boiler cleaning, boiler cleaning oil, gas boiler cleaning, coal-fired boiler cleaning, water furnace cleaning, hot water boiler cleaning, heating boiler cleaning, boiler cleaning baths, steam boiler plate heat exchanger cleaning and cleaning and so on.

A portion of the boiler water after the water evaporated by heating, and had a bad dissolution of calcium sulfate (CaSO4, gypsum is calcium sulfate containing water of crystallization) precipitated. Original dissolved calcium bicarbonate (Ca (HCO3) 2) and magnesium bicarbonate (Mg (HCO3) 2), in a heated water decomposition and emit carbon dioxide (CO2), into insoluble calcium carbonate (CaCO3) and hydrogen magnesium (Mg (OH) 2) also settle down, sometimes generate MgCO3, thus forming a scale. According to its causes and forming different states can be divided into two kinds of hard dirt and debris. The main component of the scale is calcium carbonate, magnesium hydroxide, which can be an acid chemical change, then that can be used as acid-containing chemicals remove boiler scale, this is a complex agent boiler detergents.

Boiler after a long run, the inevitable emergence of scale, corrosion problems, boiler scale formation is the main reason for the water with a hardness of ingredients, through subsequent high-temperature, high-pressure continuously concentrated by evaporation occurs in the furnace a series of physical, chemical reactions, culminating in the heating surface to form a hard, dense scale.