Scientifically evaluate the remaining service life of oil storage tanks

All oil storage tanks have service life. Due to the pressure of oil stored on the tank and the corrosion of oil and external environment on the tank, the tank will gradually become thinner or crack after a long time. Due to the difference of oil material and storage environment, the consumption of oil storage tank is different, so it should be taken into account when evaluating the remaining service life of oil storage tank.

For example, due to external conditions such as high temperature, rain, and humidity, or inadequate anti-corrosion measures of the oil storage tank itself, the tank body will corrode, the water-containing deposits in the oil storage tank cause corrosion and perforation on the inner surface of the bottom of the oil storage tank, and fatigue cracks caused by stress for the storage tank defects during manufacture. As time accumulates, the compressive strength of the tank decreases and corrosion cracks occur.

To sum up, the scientific evaluation of the remaining service life of the oil storage tank must be clear about the thickness change and development trend of the oil tank plate after long-term use, and be judged by combining the metal characteristics of the oil tank, the influence of various external conditions and the constant change of oil pressure in the oil tank. Because the metal characteristics, corrosion defects, load and other numerical parameters of the oil tank are random changes, the value of the remaining service life of the oil storage tank will also be dynamic.