Common Faults And Solutions for Marine Oil-water Separation Equipment

Poor separation effect

●Cause of failure

1. The oil content of oily wastewater is too high: the bottom of the ship has not been cleaned for a long time, and there is too much sludge and oil pollution, resulting in the oil content of oily wastewater entering the separator far exceeding the equipment processing capacity.

2. Aging or damage of coalescing elements: the coalescer has been used for too long, and the performance of the internal coalescing material has declined, and it is impossible to effectively coalesce tiny oil droplets into large oil droplets, affecting the separation effect.

3. Insufficient separation space: the ship shakes frequently during navigation, making the oil-water stratification in the separator unstable, and the separation space is affected, resulting in the oil droplets not being able to fully float or sink.

◎Solution

1. Strengthen the cleaning of the bilge: Clean the bilge regularly to reduce the accumulation of sludge and oil pollution. A regular cleaning system can be set up at the bilge to thoroughly clean the bilge every time the ship enters the dock for maintenance.

2. Replace the coalescing element: Check the status of the coalescer regularly according to the equipment manufacturer's recommendations and replace the aged or damaged coalescing elements in time.

3. Optimize the installation position or add a stabilizing device: Evaluate whether the installation position of the separator is reasonable, and try to install it in an area with less impact from the ship's shaking. If the installation position cannot be changed, consider adding a stabilizing device inside the separator, such as a flow stabilizer, to reduce the impact of the ship's shaking on the separation space.

The oil concentration meter measures inaccurately

●Cause of failure

1. Sensor contamination: The sensor of the oil concentration meter is in contact with oily water for a long time, and oil and impurities will adhere to the surface, affecting the measurement accuracy of the sensor.

2. Calibration problem: The equipment has been running for a long time and has not been calibrated according to the prescribed cycle, resulting in deviations in the measurement value of the oil concentration meter.

3. Electrical failure: The electrical system of the oil concentration meter fails, such as short circuit, open circuit, or damage to electronic components, which will affect the transmission and processing of the measurement signal and cause inaccurate measurement.

◎Solution

1. Cleaning the sensor: Clean the sensor of the oil concentration meter regularly. You can use special cleaning agents and tools to clean it according to the operating procedures to ensure that the sensor surface is clean and free of impurities.

2. Recalibration: Calibrate the oil concentration meter regularly according to the requirements of the equipment manufacturer. During the calibration process, use standard oil samples and professional calibration equipment to ensure the accuracy of the calibration.

3. Check the electrical system: Perform a comprehensive inspection of the electrical system of the oil concentration meter to find the fault point. If a line problem is found, repair or replace the line in time; if the electronic components are damaged, replace the corresponding components. After maintenance, test to ensure that the electrical system is working properly.

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