The maintenance cycle of storage tanks is generally as follows:
Medium repair 60-120 days, overhaul 12 months
Secondary training: eliminate running, running, dripping and leaking.
Clean or replace the level gauge to repair or replace the inlet, outlet and sewage valves to clear the cooling water coil. Check and repair safety valve vent fire arrester. Repair the anticorrosive layer and insulation layer.
Overhaul: It includes repairing tank internals in medium repair projects, repairing or replacing barrel joints for cracks and serious corrosion found.
Polymer composites can be used for repairing. According to the requirements of internal and external inspection, and after repairing or replacing barrel joints, leak test or hydraulic test should be carried out. Fully remove embroidery and heat preservation. To deal with other problems found in internal and external inspection of storage tanks.
Maintenance methods and quality standard tank repair, such as opening, repairing and welding, replacement of barrel joints, etc., should be based on the "tolerance regulations" and other relevant standards, formulate specific construction plans and through the single specification.