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What are the main reasons for leaks in the water coolers of petrochemical plants? What are the main corrosion mechanisms of circulating water? What corrosion prevention methods are used?
The reasons for corrosion and leakage in water coolers can be diverse, mainly including the following aspects: 1. Water quality issues: Harmful substances present in the circulating water, such as chloride ions and sulfate ions, can cause corrosion and lead to leakage in the water cooler. 2. Material issues: The materials used in water coolers may become damaged due to long-term corrosion, leading to leaks. 3. Design issue: When designing a water cooler, failure to take into account factors such as the flow properties of the circulating water and the stresses it experiences can also lead to leaks. The main reason for the frequent leaks in the water coolers of petrochemical plants is the impact of factors such as high temperature, high pressure, and high corrosion during the production process on these water coolers. Due to the extremely harsh operating conditions in petrochemical plants, the circulating water contains large amounts of chloride ions and acidic substances, which can easily cause corrosion and lead to leaks. The main corrosion mechanisms of circulating water are electrochemical corrosion and chemical corrosion. Electrochemical corrosion is a type of corrosion caused by the presence of electrolytes in water ; Chemical corrosion is caused by a chemical reaction between the acidic substances present in the circulating water and metals. To address the issue of corrosion and leakage in water coolers, various anti-corrosion methods can be employed, such as using materials resistant to acids, alkalis, and high temperatures as well as corrosion-resistant materials, applying corrosion inhibitors, and using cathodic protection. At the same time, proper treatment and monitoring of circulating water are also very important measures. .