Heat exchanger cleaning reason you know! With the rapid development of modern industry, the use of cooling water is not only more and more, but also a large number of scale in the circulation and exchange equipment is not cleaned scientifically, which leads to the consumption of energy and the destruction of the environment, and reduces the operation efficiency while the equipment is damaged. During the heat exchange process of cooling water, because the refrigerant fluid (chilled water) absorbs the heat of the working fluid (cooling water), its temperature rises. At this time, the original dissolved Ca (HCO3) 2 and Mg (HCO3) 2 in water precipitate CO2 under the effect of temperature to form slightly soluble CaCO3 and MgCO3. As the solubility of CaCO3 and MgCO3 decreases with the increase of temperature, they crystallize and precipitate from the water. When these crystals are continuously deposited on the surface of the heat exchanger, they form a very hard scale, which not only affects the heat exchange efficiency, but also increases the energy consumption, and even leads to shutdown and shutdown due to insufficient flow of cooling water and reduced pressure. Picture cleaning in the production process of chemical industry, due to many reasons, heat exchanger equipment and pipeline lines will produce a lot of dirt, such as coking, oil dirt, scale, sediment, corrosion products, polymer, fungi, algae, slime and so on. The generated dirt will make the equipment and pipelines fail, the production of the device system will decline, and the energy and material consumption will increase. When the dirt corrosion is particularly serious, the process will be interrupted, and the device system will be forced to stop production, which will directly cause various economic losses, and even malignant production accidents may occur. In today's scientific development, it is almost impossible to completely avoid the generation of dirt, so the cleaning of heat exchanger and other equipment has become an important part of industrial production, especially in the production of petrochemical and thermal power plants.