Storage tanks can load a lot of materials, whether it is petroleum storage tanks, chemical storage tanks or other types of storage tanks, storage tanks are required to be safe. But in fact there are many factors that affect the safety of the storage tank, or in other words, the storage tank is unsafe, so today we will briefly describe the three factors among them, hoping to pay attention to the daily use of the storage tank. Here.
Suddenness of tank top collapse and floating tray tilt ★ Due to corrosion, the thickness of the roof wall of the vaulted tank is more severely reduced. When the operator or inspector enters the tank, a sudden ammonia tank roof will appear. Collapse phenomenon. In 2002, there was a sudden collapse of the vaulted tank roof in a certain oil field in Xinjiang until it perforated. Under the circumstances at the time, it was fortunate that the operator discovered in advance that it did not lead to the accident.
★ For the floating roof tank, when the column (guide column) is corroded and deformed, the floating disk cannot move normally, and the floating roof may tilt or even become stuck.
Concealment of tank leakage ★ Leaks are generally small, and most often occur inside the tank floor, large foot welds or T-shaped welds. Although it does not hinder normal work, its long-term effects and potential dangers cannot be ignored. For example, crude oil, refined oil, and light hydrocarbons stored in storage tanks are potentially safe when leaked.
★ Small underground leaks usually do not seep into the ground. Since the leak appears under the tank floor, it may remain hidden for long periods of time and remain undetected.
★ Leaks can cause significant fluid loss. Although rare, it can have severe impacts on the public, the environment or the water supply system.
Slowness of tank deformation When the bottom ring plate of the oil tank affects the strength of the tank due to corrosion, a typical "leg-like" phenomenon will occur. Under the pressure of the tank's own weight, the first ring of the tank body will fold the bottom ring plate, the tank body will tilt, and the tank body will severely fall over.
Of course, the factors that cause the tank to be unsafe are far more than these. The above three points only serve as a guide to the bricks and stones. The specific storage tank protection measures still need us to pay more attention.