How is MFP recirc cleanup achieved?

MFP (Main Feedwater Pump) recirc cleanup is achieved by employing a condensate pump and bypassing the polishers. This method allows the system to effectively manage and circulate the feedwater, ensuring that any contaminants or impurities can be removed without going through the polishers, which might otherwise become quickly saturated or require frequent maintenance. By using the condensate pump, the flow is directed to facilitate a cleanup process that is efficient and keeps the system operational.

The process emphasizes the importance of maintaining water quality in the plant without overly complicating the operational flow or placing unnecessary strain on filtration systems like polishers. This method strikes a balance between maintaining system efficiency and ensuring clean water enters the feedwater system, which is crucial for the overall health and performance of the steam generation cycle.

In contrast, the other methods outlined would not provide the same level of efficiency or effectiveness in a cleanup scenario. For example, high-pressure water jets, while effective in certain cleaning tasks, do not specifically address the contamination in the feedwater system and may create additional issues if not managed correctly. Draining and refilling the system could introduce more contaminants, and running auxiliary units in parallel does not inherently solve contamination problems and might complicate system operations.