Which type of pump is useful for moving water that contains solids, as in raw-water intakes?

Which type of pump is useful for moving water that contains solids, as in raw-water intakes?

• A. Centrifugal pump
• B. Mixed-flow pump
• C. Gear pump
• D. Jet pump

Answer: (B)

The mixed-flow pump is particularly effective for moving water that contains solids, such as in raw-water intakes. This type of pump operates by utilizing both centrifugal and axial flow principles, allowing it to handle mixtures that include solids without clogging or damaging the pump. The design features an impeller that draws water in axially while simultaneously imparting centrifugal force, making it suitable for applications involving solid particles suspended in the water. While other types of pumps like centrifugal pumps might handle some level of solids, they are generally better for clear liquids. Gear pumps and jet pumps are not typically used for handling mixtures with solids due to their operational principles, which could lead to damage or inefficiency when faced with solid materials. Thus, the mixed-flow pump stands out in this context for its ability to effectively transport water with solids present.

The mixed-flow pump is particularly effective for moving water that contains solids, such as in raw-water intakes. This type of pump operates by utilizing both centrifugal and axial flow principles, allowing it to handle mixtures that include solids without clogging or damaging the pump. The design features an impeller that draws water in axially while simultaneously imparting centrifugal force, making it suitable for applications involving solid particles suspended in the water.

While other types of pumps like centrifugal pumps might handle some level of solids, they are generally better for clear liquids. Gear pumps and jet pumps are not typically used for handling mixtures with solids due to their operational principles, which could lead to damage or inefficiency when faced with solid materials. Thus, the mixed-flow pump stands out in this context for its ability to effectively transport water with solids present.