The application principle of water treatment agents in industrial circulating water systems

The industrial circulating water system is an indispensable supporting facility for factory production, refrigeration, and heat exchange. During long-term cyclic use, water bodies are prone to problems such as scale formation, corrosion, bacterial growth, and turbidity, which affect heat exchange efficiency and equipment service life. As a commonly used material for regulating circulating water quality, water treatment agents rely on the synergistic effect of physics and chemistry to maintain the stable operation of the circulating water system from the dimensions of scale inhibition, corrosion inhibition, sterilization and algae removal, dispersion and purification.

Scale inhibition iswater treatment agentOne of the core application principles. Circulating water contains metal ions such as calcium and magnesium, which can easily precipitate carbonates, sulfates, and other precipitates when heated, forming hard scale on the inner walls of pipelines and heat exchangers. Water treatment agents can bind scaling metal ions in water through chelation solubilization, lattice distortion, and other effects, hindering the normal growth and precipitation of crystals. Even if tiny crystals are produced, they will be dispersed in water by the agent and are not easily attached to the surface of the equipment, reducing scale formation from the source and ensuring smooth heat exchange pipelines.

The principle of corrosion inhibition mainly relies on the film-forming protection mechanism. The acidity, dissolved oxygen, and various salts of circulating water can cause electrochemical corrosion to carbon steel, stainless steel, and copper pipeline equipment. A suitable water treatment agent can form a uniform and dense protective film on the metal surface, isolating the contact between water, oxygen and the metal substrate, blocking the electrochemical corrosion reaction path, reducing the probability of pipeline pitting, corrosion, wall thickness loss and other failures, and extending the service life of circulating water equipment.

The mechanism of sterilization and algae killing is equally crucial as the mechanism of antibacterial activity. Industrial circulating water has a suitable temperature and sufficient nutrients, which can easily breed bacteria, microorganisms, and algae. After a large amount of reproduction, it will form biofilms that adhere to the pipe wall, causing pipeline blockage and a decrease in heat exchange and cooling efficiency. Water treatment agents can damage microbial cell walls and enzyme systems, inhibit bacterial and algal metabolism and reproductive ability, effectively control the production of biofouling, avoid microbial corrosion and pipeline sedimentation problems, and maintain clean water quality.

In addition, water treatment agents also have good dispersing and purifying effects. Suspended sediment, corrosion products, and small impurities in circulating water are prone to agglomerate and deposit. Chemicals can adsorb on the surface of particles, increasing the repulsion between particles and allowing them to remain suspended in the water for a long time. They enter the filtration equipment with the circulating water flow and are discharged, reducing the sedimentation of system sludge and maintaining the transparency and stability of the water body.

In practical applications, various water treatment agents can be used in combination according to the water quality conditions of the circulating water, and their functions work together to form a complete water quality protection system. Without the need for complex equipment modifications, multiple effects such as anti scaling, anti-corrosion, bacterial and algae control, and sedimentation reduction can be achieved at low cost, improving heat transfer efficiency, saving water and energy consumption, and reducing equipment maintenance frequency.

Overall,water treatment agentBy utilizing multiple principles such as chelation scale inhibition, film-forming corrosion inhibition, sterilization and antibacterial, and dispersion stability, the common problems of scaling, corrosion, and bacterial and algal growth in industrial circulating water systems can be solved. This is an important supporting method to ensure the safe, stable, and energy-saving operation of industrial circulating systems.