Take a look at the “cutting-edge technology” on this device: 65 – An environmentally friendly thermal insulation and anti-corrosion coating
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Corrosion is an important factor affecting the long-term stable operation of storage tanks. Especially in areas where many tanks are located along the coast, the humidity is high and salt spray corrosion is severe, resulting in serious rusting on the outer walls of the tanks. After rain and snow, water accumulates on the tank tops; upon evaporation, this leads to high local salt concentrations, causing pitting and peeling. On the other hand, during summer, high temperatures and long daylight hours cause the temperature of the tank walls to rise, which increases the evaporation of oil and gas inside the storage tanks. This not only results in economic losses but also causes environmental pollution. Traditional spray cooling, on the other hand, consumes a large amount of water and electricity. By applying coatings with thermal insulation properties to the surface of the tank, its temperature can be reduced effectively. This not only helps to save costs associated with cooling through spraying, but also reduces the evaporation of oil and gas inside the tank, thereby enhancing safety in the tank area and protecting the environment. Today, I would like to recommend the use of a new technology, namely: environmentally friendly insulation and anti-corrosion coatings. For more sharing, please see the “Explore the ‘Advanced Technologies’ on Devices” series: https://bbs.hcbbs.com/thread-3056492-1-1.html
To address the issues of corrosion protection and vapor control in chemical and petroleum storage tanks, Sinopec Dalian Research Institute has developed composite functional water-based coating products with excellent corrosion resistance, weather resistance, chemical resistance, and stain resistance. By using a system that combines carbon nanotube-modified epoxy zinc-rich primer, carbon nanotube epoxy ferroic oxide coating, a water-based reflective heat-insulating layer, and a water-based high-performance anti-corrosion fluorocarbon topcoat, it is possible to achieve anti-corrosion and heat-insulation effects characterized by high reflectivity, radiation resistance, and low heat conduction, thus creating a complete set of water-based anti-corrosion and heat-insulation coating technologies.
Advancement: 1. The newly developed water-soluble fluorocarbon resin matrix along with specialized micro-nano fillers enable the creation of proprietary preparation techniques for fluorine emulsions and metal oxide/hollow microsphere composite fillers. 2. Develop innovative water-based fluorocarbon anti-corrosion topcoats and water-based thermal insulation coatings to create fluorocarbon coatings that offer low heat conductivity, reflection/radiation properties, as well as enhanced anti-corrosion capabilities. 3. Develop carbon nanotube-modified epoxy paint, innovate the preparation method for polymer-coated carbon nanotubes, and optimize the coating structure design. 4. A four-layer structural system comprising carbon nanotube epoxy zinc-rich coating + carbon nanotube epoxy limonite coating + water-based thermal insulation layer + water-based heavy-duty anti-corrosion topcoat is formed, thereby creating a complete set of environmentally friendly thermal insulation and heavy-duty anti-corrosion coating technologies. 5. It improves the corrosion resistance of the equipment, effectively extends the service life of storage tanks, reduces evaporation losses of oils and chemicals, minimizes pollution, and helps to reduce costs while increasing efficiency.
Case 1: A domestic coastal refined oil storage area, characterized by high environmental humidity and severe salt spray corrosion, with serious corrosion on the tops of the storage tanks. This coating technology was used to carry out anti-corrosion repairs on the roof of the storage tank. After the painting and repair work, no bubbling, peeling, or cracking occurred on the roof of the refined oil storage tank. The product provides excellent corrosion protection in coastal environments. Moreover, in tanks equipped with an insulating layer, the temperature difference between the inside and outside of the tank is significantly higher compared to those without such a layer, and the temperature of the outer wall of the tank is lower; thus, the coating offers good insulating properties.
Case 2: A storage tank in an inland refined oil tank farm, characterized by high temperatures and long daylight hours in summer. Using this coating-related technology, full-coating of the external surface of the storage tank was carried out. Special attention was paid to conducting follow-up tests on the insulation performance of the storage tank, and comparisons were made with adjacent tanks. The results showed that the surface temperature of the storage tank coated with this technical product was lower than that of the control tank, and the oil temperature inside the tank was lower than that of the control tank throughout 7 days of continuous monitoring. The heat-insulating and heavy-duty anti-corrosion coating possesses excellent heat reflection properties, which can effectively reduce the oil temperature inside the tank, thereby minimizing evaporation losses and economic costs.