The scaling of cooling system of air separation equipment will seriously affect the operation efficiency and safety of equipment, so effective preventive measures must be taken.
For water quality management, calcium ion, magnesium ion and other impurities in cooling water are the main causes of scaling, and water quality indexes shall be strictly controlled. Check the water quality of the cooling water regularly, and add appropriate water treatment agents according to the test results. They can interfere with the impurity crystallization process and prevent the formation of large scale. At the same time, adjust the dosage according to the change of water quality to ensure the treatment effect.
Optimize the design of cooling water circulation system. Reasonably design the pipeline layout, reduce the dead angle of water flow and avoid the deposition of impurities. Ensure that the water flow velocity is moderate, too slow will make the impurities easy to attach, too fast may accelerate the equipment wear, generally controlled within the appropriate range, to enhance the water flow's ability to scour and carry impurities.
Clean and maintain the cooling system regularly. Develop a scientific and reasonable cleaning plan, and adopt the combination of physical cleaning and chemical cleaning. Physical cleaning such as high-pressure water washing can remove loose dirt on the surface; For chemical cleaning, select proper cleaning agent to dissolve and remove stubborn scale. Rinse thoroughly after cleaning to prevent corrosion to the system caused by residual chemicals.
The above comprehensive measures can effectively prevent scaling of cooling system of air separation equipment and ensure stable and efficient operation of equipment.
