The fire-resistant oil circulation system is an important guarantee for the safe operation of the steam turbine. The performance status of one of its core components, the oil pump filter AD3E301-01D03V/-W, directly affects the stability and reliability of the system. Filter blockage will not only reduce the circulation efficiency of the oil, but also may damage the precision hydraulic components. Therefore, identifying the early signs of filter efficiency degradation and taking timely measures is an indispensable part of maintenance work.

The most direct and obvious sign is the increase in the pressure difference before and after the filter AD3E301-01D03V/-W. During normal operation, the pressure difference on both sides of the oil pump filter remains within a certain range. If the pressure difference exceeds the design standard, it is usually an early signal of filter blockage. This change can be captured in time by installing a differential pressure sensor and continuously monitoring.

As the filter is blocked, the channel for oil to pass through the filter becomes narrower, and the circulation volume decreases accordingly. If the oil pump output flow is found to be lower than normal, especially when the system load remains unchanged, the filter AD3E301-01D03V/-W may be blocked.

The blockage of the filter increases the workload of the oil pump, resulting in increased energy consumption of the oil pump and poor oil circulation, which may cause the oil temperature to rise. The abnormal rise in oil temperature is an important warning, and the filter status needs to be checked immediately.

The fire-resistant fuel system serves the control and protection of the steam turbine. The blockage of the filter leads to insufficient oil supply, which may cause the servo valve and control elements to respond late, which is manifested as slow or inadequate adjustment.

The phenomenon of increased noise in the oil pump may also indicate that the filter is blocked, because the blockage of the filter increases the difficulty of pumping oil. When the oil pump is working, it may produce abnormal noise due to increased load, which is a manifestation of increased mechanical stress.

Maintenance personnel should make full use of modern monitoring technology and data analysis to remain highly alert to early signs of reduced efficiency of the fuel circulation pump filter AD3E301-01D03V/-W, and make judgments through scientific methods to formulate reasonable maintenance strategies to ensure that the filter is in the best working condition.

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