Bottom leakage of API standard 650 self-anchored tank

Low-pressure storage tanks for Liquefied Hydrocarbon Gases
API standard 650 self-anchored tank Primary Components: In general, primary components include those components that may be stressed to a significant level, those whose failure would permit leakage of the liquid being stored, those exposed to a refrigerated temperature between –60°F and –270°F, and those that are subject to thermal shock. The primary components shall include, but will not be limited to, the following parts of a single-wall tank or of the inner tank in a double-wall tank: shell plates; bottom plates; roof plates; knuckle plates; compression rings; shell stiffeners; and manways and nozzles including reinforcement, shell anchors, pipe, tubing, forgings, and bolting.

The inner layer of API 650 tank is the same as that of single layer tank. It is made of high-quality steel plate in strict accordance with the standard of "steel welded atmospheric pressure vessel". The thickness of API standard 650 self-anchored tank steel plate reaches the standard and the service life is longer.

When encountering heavy rain or continuous heavy rainfall, the safe operation of API standard 650 self-anchored tank will be affected. For example: the API standard 650 self-anchored tank is submerged, the oil unloading valve and the flame arrester valve are broken by water and the oil tank leaks. The oil tank area must do emergency work to prevent rainstorm to ensure the safety of the oil tank. Here are some safety protection measures for API standard 650 self-anchored tank in heavy rain.