Fault Analysis and Troubleshooting of Lifeierte Coalescence Dehydration Oil Purifier

1. Insufficient Water Removal Efficiency

Fault Analysis

• Clogged Coalescence Filter: Over time, impurities in the oil can accumulate on the coalescence filter media. This blockage restricts the normal flow of oil, preventing water droplets from effectively coalescing. As a result, the separation of water from the oil is severely affected.

• Damaged Separation Components: The internal separation components, such as baffle plates or separation membranes, may be damaged due to long - term use, improper operation, or mechanical impact. Damaged separation components cannot function properly to separate water from the oil, leading to reduced water - removal efficiency.

• Incorrect Flow Rate: If the oil flow rate through the purifier is too high, the residence time of the oil in the purifier is too short. This means that water droplets do not have enough time to coalesce and separate from the oil. Conversely, if the flow rate is too low, it may cause problems such as reduced production efficiency and uneven separation.

Troubleshooting Methods

• Clean or Replace the Coalescence Filter: Shut down the purifier and relieve the pressure in the system. Remove the coalescence filter and clean it with a suitable cleaning agent according to the manufacturer's instructions. If the filter is severely clogged or damaged, replace it with a new one. After replacement, start the purifier and monitor the water - removal efficiency.

• Inspect and Repair Separation Components: Open the purifier's housing to visually inspect the separation components. If any damage is found, such as cracks in baffle plates or holes in separation membranes, repair or replace the damaged parts immediately. Ensure that the repaired or new components are properly installed and sealed to prevent leakage.

• Adjust the Flow Rate: Use flow - control valves or adjust the operation parameters of the oil - supply pump to adjust the flow rate to the recommended range. Monitor the flow rate during operation using a flow meter. If necessary, make further adjustments based on the actual water - removal efficiency and production requirements.

  
  

2. High Pressure Drop

Fault Analysis

• Filter Clogging: Both the coalescence filter and the fine - filtration filter can become clogged with contaminants from the oil. As the filter pores are blocked, the resistance to oil flow increases, resulting in a significant pressure drop across the filters.

• Blocked Pipes or Valves: Debris, sediment, or other foreign matter may accumulate in the pipes or valves of the purifier. This blockage restricts the flow of oil, causing the pressure to build up upstream of the blockage and resulting in a high pressure drop.

• Air Entrainment: If air enters the oil - flow system, it can form air bubbles that accumulate in the filters or pipes. These air bubbles increase the resistance to oil flow and contribute to a higher pressure drop. Air entrainment can occur due to leaks in the suction pipe, improper priming of the pump, or a low oil level in the oil tank.

Troubleshooting Methods

• Clean or Replace Filters: Similar to dealing with insufficient water - removal efficiency, clean or replace the clogged filters. Regularly scheduled filter maintenance can help prevent filter - related pressure - drop problems. After filter replacement, check the pressure drop using a pressure gauge to ensure it returns to the normal range.

• Inspect and Clean Pipes and Valves: Shut down the purifier and visually inspect the pipes and valves for blockages. Use a suitable tool, such as a pipe cleaner or a pressure - washer, to remove any debris or sediment. If necessary, disassemble the valves for a more thorough cleaning. After cleaning, reassemble the components and check for proper operation.

• Eliminate Air Entrainment: Check for leaks in the suction pipe and repair them immediately. Ensure that the pump is properly primed before starting the purifier. If the oil level in the oil tank is low, add the appropriate amount of oil. Install an air - release valve at a high - point in the oil - flow system to allow air to escape. Monitor the pressure drop after taking these measures to ensure that air entrainment has been effectively addressed.

3. Leakage

Fault Analysis

• Loose Pipe Connections: Over time, vibrations during operation, temperature changes, or improper installation can cause pipe connections to loosen. Loose connections create gaps through which oil can leak.

• Damaged Seals: The seals used in the purifier, such as O - rings or gaskets, can deteriorate due to aging, exposure to oil chemicals, or excessive pressure. Damaged seals lose their sealing ability, resulting in oil leakage.

• Corrosion of Components: If the purifier is exposed to corrosive substances in the oil or the environment, components such as the housing, pipes, or joints may corrode. Corrosion can create holes or weak areas in the components, leading to oil leakage.

Troubleshooting Methods

• Tighten Pipe Connections: Check all pipe connections regularly. If a connection is found to be loose, use the appropriate tools to tighten it. Be careful not to overtighten, as this may damage the pipes or connectors. After tightening, check for leaks by visually inspecting the connections or using a leak - detection solution.

• Replace Damaged Seals: Identify the damaged seals and replace them with new ones of the same specifications. When replacing seals, ensure that the surfaces they are sealing are clean and smooth. Apply a small amount of sealant (if recommended by the manufacturer) to enhance the sealing effect.

• Repair or Replace Corroded Components: If corrosion is detected, assess the extent of the damage. For minor corrosion, the affected area can be repaired by removing the corrosion and applying a suitable anti - corrosion coating. For severely corroded components, replace them with new parts. After repair or replacement, test the purifier for leaks to ensure its integrity.