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Circulating cooling water is a major category of industrial water use.
Release Time:
2023-12-07 14:53
Source:
Circulating cooling water is a major water use in industrial water consumption. In industries such as petrochemical, electric power, steel, and metallurgy, the use of circulating cooling water accounts for 50% to 90% of the total water consumption of enterprises. In industrial production, as the operating cycle extends and the concentration factor increases, factors such as suspended solids from microbial growth and dust cause changes in water quality, leading to frequent problems such as heat exchanger scaling, corrosion, and continuous accumulation of impurities and suspended solids in pipelines, forming solids. These issues increase energy consumption, reduce equipment service life, and create safety hazards. Different makeup water sources affect the cycle and severity of these problems. How to reasonably control water quality parameters to improve water reuse rate, save water resources, and greatly improve the overall condition of circulating cooling water is crucial. Self-cleaning filters can effectively remove accumulated impurities in the water, greatly reducing energy consumption; secondly, self-cleaning filters achieve online cleaning with uninterrupted flow, ensuring system flow throughout the circulation system; thirdly, self-cleaning filters require no manual operation, especially for some high-temperature water, greatly reducing labor intensity and risk; fourthly, self-cleaning filters can realize online monitoring and control through PLC remote systems, facilitating inspection of system stability. It is also necessary to establish effective monitoring methods for circulating cooling water systems, monitor water quality stability online, accurately control the dosing of circulating water chemicals. Intelligent monitoring technology and data acquisition systems for circulating water have made significant progress, and by calculating the scale inhibitor's inhibition rate, the scale inhibition effect is evaluated, proposing a method to evaluate the scale inhibition effect of water treatment technology before scale prevention technology evaluation. Despite various tests and selections, online optimization of on-site water treatment schemes has not been completed.
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