Factors Affecting the Life of Doublelayer oil Storage Tanks

1. Double-layer oil storage tanks are generally used for crude oil storage. In recent years, with the continuous increase of human demand for energy. Many ports and refineries have built a large number of oil storage tanks. The reliable operation of these facilities has a direct bearing on efficient production and environmental safety.

2. The life of the double-layer oil tank also directly affects the economic benefits of the refinery. The design life of the general oil tank is 20 years. However, oil stored in oil tanks often contains corrosive chemicals such as hydrogen, sulfuric acid, organic and inorganic salts, and moisture. In addition, the outer wall of the tank is affected by environmental factors, and the life of the tank can be shortened to about 5 years.

Some are severely corroded and can cause corrosion and perforation of the oil tank in about a year. If the pressure vessel undergoes corrosive perforations during non-repair periods, the losses will be even greater. 3. If the double-layer oil tank cannot be processed in a timely manner, the surface corrosion will cause pollution to the oil products, which will increase the gum quality, pH and salinity of the oil products. Affects oil quality. On the other hand, oil leakage due to perforation of the oil tank due to corrosion not only causes waste of energy and pollutes the environment. And it is easy to cause fire and explosion, and its danger can be imagined. The fatigue loss caused by corrosion directly affects the strength of the pressure vessel and is the main reason for reducing the life of the oil tank.