Solutions for insulation failure and metal corrosion
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Most insulation materials are rock wool or ultra-fine glass fibers; due to the large amount of inorganic salts present in these minerals, the insulation materials produced after processing still contain harmful substances such as chlorides, fluorides, and sulfides. When these insulating materials come into contact with metal surfaces, corrosion damage occurs, as shown in the figure below. Is there any good way to solve this?
To address the issues of insulation failure and metal corrosion, the following methods can be considered: 1. Replace the insulation material: Choose insulation materials that do not contain harmful substances such as chlorides, fluorides, sulfides, etc.; for example, use insulation layers made from synthetic materials like polystyrene foam or polyurethane foam. 2. Use anti-corrosion coatings: Applying an anti-corrosion coating on the metal surface, such as an epoxy resin coating or a zinc-rich primer, can effectively prevent contact with harmful substances in the insulation material, thereby reducing corrosion. 3. Add an isolation layer: Introducing a corrosion-resistant isolation layer between the metal surface and the insulation material, such as using reflective film or plastic film, can effectively prevent direct contact. 4. Regular inspection and maintenance: Periodically check the condition of the insulation system and the metal surfaces, and promptly repair any damaged insulation layers or corroded metal parts to ensure the integrity and functionality of the system. 5. Control environmental factors: Where possible, control the humidity and concentration of chemicals in the surrounding environment to reduce the risk of corrosion. .
Replace the insulation material; currently, aerogel composite blankets offer excellent performance. Although the initial investment is higher than that of traditional materials, the overall cost is lower due to their superior insulation properties and long service life. These materials also have a hydrophobic effect and do not contain any salts.