A detailed Deaerator ANNUAL preventive maintenance checklists
General Information
Safety Precautions
Visual Inspection
- Look for moisture or water stains around joints and seams.
- Check for rust or discoloration indicating corrosion.
- Inspect welds and flanges for signs of leakage.
- Use a flashlight to illuminate hard-to-see areas.
- Look for any missing or damaged insulation.
- Check for signs of moisture or dampness on insulation.
- Ensure insulation is securely fastened and not sagging.
- Assess for any wear that could expose piping.
- Inspect for deformations or bulges on the tank surface.
- Check weld joints and bolts for tightness and integrity.
- Look for cracks or fractures in the metal structure.
- Assess the condition of supports and mounting points.
- Check the floor for puddles or damp spots.
- Inspect nearby equipment for signs of moisture damage.
- Look for any drainage issues that could cause pooling.
- Ensure proper slope in the area to facilitate drainage.
- Assess piping connections for straightness and alignment.
- Look for any visible bends or misalignments.
- Ensure supports are placed correctly to prevent sagging.
- Check for stress on flanges and joints.
- Observe operational equipment for unusual shaking or noise.
- Check mounting hardware for looseness or wear.
- Inspect for any visible signs of wear on bearings.
- Ensure that all connections are secure.
- Check valve bodies for rust or corrosion.
- Look for any leaks around valve seals and fittings.
- Assess the operation of valves; ensure they open and close smoothly.
- Inspect actuator mechanisms for wear and damage.
- Check for any cracks or damage to the sight glass.
- Ensure that there are no blockages obstructing visibility.
- Clean the outer surface if dirty or stained.
- Verify that it is securely mounted and sealed.
- Check for any visible damage to the gauge face or housing.
- Ensure gauges are calibrated and reading accurately.
- Inspect connections for leaks or wear.
- Look for signs of corrosion on gauge components.
- Inspect accessible interior surfaces for buildup.
- Look for discoloration or crusty deposits.
- Assess the need for cleaning to maintain efficiency.
- Check for any signs of microbial growth.
- Check that panels are not bent or damaged.
- Ensure all fasteners are tight and secure.
- Look for any signs of corrosion on the panels.
- Verify that seals are intact to prevent leaks.
- Check for any blockages in drainage pathways.
- Ensure that the ground is clear of debris and obstructions.
- Look for signs of erosion or pooling around the area.
- Verify that drainage systems are functional.
- Check for fading or damage to labels.
- Ensure all required safety information is present.
- Verify that instructions are current and easy to read.
- Assess placement of labels for visibility.
- Inspect all external surfaces for rust patches.
- Check for flaking paint or surface deterioration.
- Look for any signs of moisture retention.
- Assess the need for protective coatings.
- Inspect support legs and bases for signs of wear.
- Check for any visible cracks or structural issues.
- Ensure that supports are level and stable.
- Assess for any rust or corrosion.
Operational Checks
Component Maintenance
- Remove the spray nozzle from the deaerator.
- Use a soft brush or cloth to clean any debris.
- Rinse thoroughly with clean water.
- Reinstall the nozzle and check for proper alignment.
- Test the flow to ensure it meets specifications.
- Check vent and overflow lines for blockages.
- Use a vacuum or compressed air to clear obstructions.
- Inspect for signs of corrosion or damage.
- Clean the interior surfaces with a suitable solvent.
- Ensure all connections are secure and leak-free.
- Start the feedwater pump and observe its operation.
- Verify the flow rate and pressure are within specifications.
- Inspect all valves for smooth operation.
- Check for leaks around pump seals and valves.
- Lubricate any moving parts as necessary.
- Shut down the deaerator and isolate from service.
- Open the access hatch and visually inspect the interior.
- Remove any sediment using a scraper or vacuum.
- Check for corrosion and treat as needed.
- Close the hatch securely after cleaning.
- Remove gauges from their fittings for inspection.
- Use a calibration device to check accuracy.
- Adjust or replace gauges as necessary.
- Reinstall gauges and ensure proper sealing.
- Document calibration results for records.
- Examine all flanged and bolted connections visually.
- Use a torque wrench to ensure proper tightness.
- Look for any signs of leakage or degradation.
- Replace any damaged gaskets or seals.
- Retest connections for leaks after adjustments.
- Test the level control system by simulating low/high levels.
- Observe response actions and ensure they function correctly.
- Calibrate sensors and controls as necessary.
- Inspect wiring and connections for wear or damage.
- Document any adjustments made during testing.
- Remove the safety relief valve for inspection.
- Clean the valve seat and components with a solvent.
- Test the valve by applying pressure to ensure proper operation.
- Reinstall the valve and check for leaks.
- Document test results and any maintenance performed.
- Visually inspect insulation for signs of damage.
- Check for moisture accumulation or deterioration.
- Replace any damaged insulation or covers.
- Ensure insulation is securely fastened.
- Document findings for future reference.
- Test level indicators by comparing readings with actual levels.
- Calibrate transmitters if readings are inaccurate.
- Inspect wiring and connections for integrity.
- Clean sensor surfaces to enhance accuracy.
- Record any maintenance actions taken.
- Visual inspection of the steam supply line for leaks.
- Check for signs of corrosion or wear on the pipe.
- Ensure insulation is intact and properly applied.
- Repair or replace any damaged sections.
- Document inspection findings and corrective actions.
- Inspect condensate return lines for proper flow.
- Clear any identified blockages or obstructions.
- Check pumps and valves for proper operation.
- Test the system under normal operating conditions.
- Document system performance and any issues found.
- Manually operate each valve to check for stiffness.
- Inspect seals and packing for wear or leaks.
- Lubricate moving parts as recommended.
- Replace any valves that show significant wear.
- Document the condition and maintenance of each valve.
- Identify all moving parts requiring lubrication.
- Use the recommended lubricant and apply as specified.
- Ensure no excess lubricant is applied.
- Check for smooth operation post-lubrication.
- Keep a record of lubrication activities.
- Verify the functionality of control systems through testing.
- Check for software updates and apply if necessary.
- Inspect hardware connections for integrity.
- Document any discrepancies or issues found.
- Ensure all displays and indicators are operational.
- Conduct a test of backup systems under load conditions.
- Check for automatic switchover functionality.
- Inspect connections and components for wear.
- Document test results and any maintenance performed.
- Ensure backup systems are ready for operation.
- Create a detailed record of all inspections performed.
- Include specific issues identified and actions taken.
- Attach any relevant test results or calibration data.
- Ensure documentation is accessible for future reference.
- Review records with team members for transparency.
Use in Manifestly