Service Center Engineering for Power Plant Pumps

This case study details the engineering challenges and solutions encountered during the repair of a circulating water pump at a Midwest power plant. The document outlines the failure analysis of the pump, which revealed that previous repairs did not adhere to the original design specifications, leading to catastrophic failure. The service center engineers assessed the damage and developed a plan to replace the suction bell and impeller. They designed a new suction bell using upgraded materials and recreated the impeller's hydraulic profile through computational fluid design. The engineers conducted a metallurgical analysis to ensure the new impeller blades matched the original material composition. The project required meticulous planning, including the creation of special fixtures and jigs for precise alignment and balancing. The service center maintained communication with the plant throughout the process, successfully completing the repairs within seven weeks, allowing the plant to operate at full capacity during the critical summer season. The case emphasizes the importance of experienced engineering support in pump repairs.