What might cause surging of the feedwater supply to a flash evaporator?

Surging of the feedwater supply to a flash evaporator can indeed be caused by a dirty strainer in the saltwater feed pump suction line. When the strainer becomes blocked with debris, it restricts the flow of saltwater to the pump, resulting in inconsistent or inadequate flow rates. This fluctuation can lead to surging, as the pump may intermittently draw in water with varying pressure due to the strainer's obstruction. The operational consistency of the feedwater supply is crucial for the steady performance of a flash evaporator; thus, maintaining clean strainers is essential for optimal operation.

Other factors such as excessive brine density, low operating pressure, or a broken feedwater pump could impact the efficiency of the evaporator or its performance but are less directly related to surging in the feedwater supply itself. Excessive brine density may affect the evaporation process but not specifically cause surging in the feed supply. Similarly, low operating pressure could lead to operational challenges but does not inherently relate to fluctuations caused by strainer blockage. A broken feedwater pump would more likely result in a complete loss of supply rather than surging. Therefore, focusing on maintaining the strainer's cleanliness is key to preventing surging issues in the feedwater