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This post was last edited by kareale88 on 2018-11-4 at 16:11. Oil tank series 3~~~Some information on double-layer oil storage tanks~~~Shared materials. Current status of SF double-layer oil storage tanks: The 21st century is the century of oil, the century of the petrochemical industry, and also the century of technology. In China’s vast economic market, the petrochemical industry is also set to enter a new era. For the petrochemical industry and the environment, oil storage containers are of particular concern; addressing the severe pollution caused by oils to groundwater sources and soil is a major challenge for countries around the world. Therefore, drawing on the advanced technologies and experiences in transportation and storage within the Western petrochemical industry, it is our top priority to explore safe and environmentally friendly methods of transportation and storage for China’s petrochemical industry. The foreign petrochemical industry has widely adopted double-layer oil storage containers. The full name of an SF double-layer oil storage container is \"Steel-reinforced fiberglass double-layer structure oil storage container.\" It originated in the United States, and was introduced to Japan in 1994 by Tamada Industry Co., Ltd., where it was improved. In the same year, the Japanese market defined the product of \"steel-reinforced fiberglass double-layer oil storage containers,\" established relevant standards, and gradually promoted its use. According to reliable sources, in developed countries such as Japan, Europe, and the United States, the adoption rate is over 95%; in Taiwan, it was widely adopted 5 years ago, and currently all oil storage companies and gas stations there use it. At present, single-layer steel containers are commonly used for storing oil-based fuels in China’s petrochemical industry. Oil is highly corrosive to steel storage tanks; the service life of such single-layer steel oil storage containers is generally only around ten years. They are also prone to leaks and pose safety risks. Since oil leaks into the soil, this damage is irreversible and difficult to rectify. Contaminated groundwater has a significant impact on people’s production activities, daily lives, and health, leading to serious environmental pollution. Environmental protection is a fundamental national policy in our country and an important component of the sustainable development strategy. As environmental standards continue to improve and public awareness of environmental issues grows, more attention is being paid to the pollution caused by leaks from underground oil storage tanks. In the explanatory notes to the \"Code for Design and Construction of Automobile Fueling and Gas Refueling Stations,\" it is mentioned that \"double-walled oil tanks made of non-metallic materials such as fiberglass are widely used in fuel stations abroad.\" These oil tanks have excellent corrosion resistance, strength sufficient to meet operational requirements, and better safety performance compared to steel oil tanks. Western countries such as the United States primarily use composite double-wall tanks that are equipped with devices for detecting leaks; China is now also pursuing research in this area. To this end, FF double-layer containers and SS double-layer containers have been designed and developed domestically. However, the FF double-layer containers are expensive, while the SS double-layer containers fail to address the issue of electrochemical corrosion on the outer layer; their short service life means they do not meet the requirements for energy conservation and environmental protection, which is why they are not easy to promote. The SF double-layer oil storage container features a double structure with a steel inner shell and a reinforced fiberglass outer shell; there is a gap between the two shells, preventing oil from seeping into the ground. It is equipped with advanced leak detection devices that can promptly detect the amount of leakage and trigger an alarm sound. The unique features of double-layer oil storage tanks, such as strong corrosion resistance, automatic leak detection and alarm functions, high efficiency and environmental friendliness, as well as safety and cost-effectiveness, give them a significant competitive advantage in terms of environmental protection, leak prevention, corrosion resistance, extending the lifespan of oil tanks, and energy savings. As a result, they have attracted much attention in the industry. It is an inevitable trend for safe and environmentally friendly double-layer oil storage tanks to replace traditional single-layer oil tanks. If this product is imported from abroad, significant upfront investment and high transportation costs are involved, resulting in relatively high overall costs; therefore, it is urgent for China to develop its own double-layer oil storage containers.