Replacing the filter element of the turbine jacking oil system is a task that requires strict operating procedures to ensure that the replacement process is pollution-free and to prevent cross-contamination between the new and old filter elements. The following are the specific steps to be followed when replacing the turbine jacking oil system filter element QF1600KM2510BS during power plant operation.

System oil drain: Open the oil drain valve and drain the oil in the system into the designated container until the oil level is below the filter element position. Ensure that the discharge process is slow to avoid oil splashing.

Removing the old filter element: Close the valves upstream and downstream of the filter element to prevent oil flow. Use special tools to carefully remove the old filter element to avoid scratching the sealing surface or generating metal fragments. Put the old filter element into a pre-prepared contamination collection bag and seal it to avoid environmental pollution.

Inspection and cleaning: Check the filter element seat ring for damage, dirt or residue, and clean it with cleaning solvent and soft cloth if necessary. Clean the filter element installation surface to ensure that the sealing surface is flat and intact.

Installing a new filter element: Confirm that the new filter element model is correct and check that the packaging is intact. Apply an appropriate amount of recommended sealing grease to the seal ring of the new filter element, and avoid applying it directly to the filter element seat ring to prevent contamination. Gently install the new filter element in place to avoid damage caused by excessive force. Re-tighten the filter element fixing bolts according to the torque value specified by the manufacturer.

System filling and exhaust: Slowly open the upstream valve to allow the oil to fill the filter element and check for leaks. Open the system exhaust valve to ensure that there is no air residue in the system until the oil flows out continuously without bubbles.

Functional verification: Start the oil pump, check whether the oil pressure is normal, and observe whether there is any leakage. Monitor the system for a period of time to confirm that there is no abnormal vibration or noise.

Clean up the site: Clean the work area and properly dispose of the discarded filter elements and used consumables. Remove the safety isolation measures, restore the system to normal operation, and notify relevant personnel that the system has returned to normal.

By following the above steps, you can effectively ensure the pollution-free replacement of the turbine jacking oil system filter element, avoid cross-contamination between the new and old filter elements, thereby maintaining the long-term stable operation of the turbine and improving work efficiency.

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