How to Clean a Gasline Stroage Tank

First, depressurize the tank, close all inlet and outlet valves, and isolate the tank to prevent material from entering during cleaning. Test the gas inside the tank to ensure the gasoline vapor concentration meets safety standards. Equip the tank with professional protective gear, including gas masks, chemical protective suits, and non-slip shoes. Prepare cleaning tools and emergency supplies, demarcate a safe cleaning area, and strictly prohibit unauthorized personnel from entering.

Use explosion-proof ventilation equipment to force ventilation inside the tank, accelerating the removal of residual gasoline vapor. Regularly monitor the gas concentration during ventilation until it stabilizes within a safe range. If ventilation is ineffective, use inert gas for replacement to further reduce the flammable gas content inside the tank, creating a safe environment for subsequent cleaning operations.

Select an appropriate cleaning method. Mechanical cleaning can use high-pressure water guns or similar equipment to flush the inner wall of the storage tank, removing oil and impurities. Chemical cleaning requires the use of specialized cleaning agents, which should be mixed according to the specified ratio, injected into the tank, soaked for a period of time, drained, and then rinsed thoroughly with clean water. During the cleaning process, ensure that workers rotate shifts to avoid discomfort caused by prolonged work.

After cleaning, retest the gas concentration and inner wall cleanliness of the storage tank to ensure compliance with relevant standards. Inspect the tank valves, pipes, and other components for integrity and leaks. Dispose of cleaning waste liquid and residue in compliance with regulations to avoid environmental pollution. Finally, complete the cleaning record and archive it for future reference.