The maintenance cycle of storage tanks is generally: medium maintenance60-120God, overhaul12months. Intermediate repair: eliminate running, popping, dripping and leaking, clean or replace the liquid level gauge, repair or replace the inlet, outlet and sewage valves, clear and clean the cooling water coil. Check and repair the safety valve vent flame arrester. Repair anti-corrosion layer and insulation layer. Overhaul: Including mid-term repair projects to repair the internal parts of the storage tank. If cracks, severe corrosion, etc. are found, the barrel sections will be repaired or replaced accordingly. Repairs can be made with polymer composite materials. According to the internal and external inspection requirements, and after repairing or replacing the cylinder section, a leak test or hydraulic test is required. Comprehensive embroidery removal and thermal insulation. Deal with other problems found during the internal and external inspection of the storage tank.
       Maintenance methods and quality standards: For the repair of stainless steel storage tanks, such as opening holes, repair welding, replacing cylinder sections, etc., specific construction plans should be formulated in accordance with the "Content Regulations" and other relevant standards and approved by the unit's technical director. The materials and valves used for repair should have quality certificates. When using old materials, valves and fasteners, they must be inspected and passed before use. The fasteners used to assemble the storage tank should be coated with lubricating material, and the bolts should be tightened diagonally in sequence. Non-metallic gaskets are generally not allowed to be reused. When selecting gaskets, the corrosiveness of the medium should be considered. Anti-corrosion and insulation work can only be carried out after the repair has passed the inspection.