Maintenance and inspection of hydrochloric acid storage tank . In order to ensure the safe production of the enterprise, the safe operation of the equipment, and the improvement of the equipment's service life and labor productivity, the operating machinery and equipment must be regularly inspected and maintained to prevent mechanical failures from affecting production, or injuries caused by mechanical accidents. Actual production, safety The operating regulations and safety maintenance management system have been studied and formulated for the annual storage tank maintenance and repair of this storage tank. The maintenance cycle of the storage tank is generally 60-120 days for intermediate repairs and 12 months for overhauls. Intermediate repair: Eliminate running, running, dripping, leaking. Clean or replace the level gauge, repair or replace the inlet, outlet, and drain valves to clear the cooling water coil. Check and repair the safety valve to vent the flame arrester. Repair preservatives and insulation. Overhaul: Including the repair of internal parts of storage tanks for medium repair projects, repair or replace the tube section correspondingly where cracks and severe corrosion are found. Repair can use polymer composite repair. According to internal and external inspection requirements, and after repair or replacement of the tube section, a leak test or hydraulic test is required. Comprehensive removal of embroidery and insulation. Deal with other problems found in the internal and external inspections of the tank. Maintenance methods and quality standards The repair of storage tanks, such as opening holes, repair welding, and replacement of tube joints, etc., should be based on the "Capacity Regulations" and other relevant standards, and formulate specific construction plans and be approved by the unit's technical responsibility. Materials used for repair (base metal, welding rod, welding wire, flux, etc.) and valves shall have quality certificates. When using old materials, valves and fasteners must be inspected and qualified before use. The fasteners for assembling storage tanks shall be coated with lubricating materials, and the bolts shall be tightened diagonally in turn. Non-metal gaskets are generally not reusable. When selecting gaskets, the corrosivity of the medium should be considered. Anti-corrosion and insulation work can only be carried out after inspection and repair after passing the inspection. Repair methods and quality standards for defective tanks in use: 1. Grinding method to eliminate defects 2. Repair welding or patching 3. Replacement of tube section 4. Excavation repair 5. Quick plugging This kind of problems cannot be solved by traditional repair welding on site Moreover, the danger is relatively large. The use of replacement media for re-bonding welding has a long construction period and high labor intensity, which will cause a huge loss in shutdown and production. Jinghui glass fiber reinforced plastic is based on different equipment, different operating conditions, different forms of corrosion leakage, and adopts corresponding technical products to quickly, simply and effectively protect the equipment, especially due to the chemical resistance of polymer composite materials, bonding Comprehensive performance, such as performance, avoids the adverse effects brought by traditional repair welding, makes the repaired equipment life even exceed the new equipment, fundamentally solves the cause of corrosion and leakage, helps enterprises improve equipment management, and reduce maintenance costs. Improve corporate competitiveness.