It is used in many industrial production cooler 。 However, the cooler scaling significantly affects the heat transfer efficiency. The scale on the cooler will significantly reduce the cooling effect, affect the process flow, and cause quality degradation. The cooler shall be thoroughly descaled and cleaned, and the equipment shall not be damaged during cooler cleaning. It can remove the algae, biological slime, carbonate hard scale and rust scale of the cooler. The cooler detergent formula with low corrosion and unique multiple corrosion inhibition technology shall be used during cooler descaling and cleaning to prevent corrosion damage to the equipment during cooler cleaning, There are different cleaning and corrosion inhibition schemes for various cooler materials, so that the cooler can be cleaned safely, efficiently and recover the normal heat exchange effect of the cooler.