Centrifugal pumps are divided into vertical pumps and horizontal pumps according to their structural forms. The characteristics of vertical pumps are: small floor space, small construction investment, convenient installation, and disadvantages: high center of gravity, not suitable for operation without fixed foot.
Horizontal pump features: wide application, low center of gravity, good stability, shortcomings: large floor space, large construction investment, large volume, heavy weight. For example: vertical pumps have ISG vertical centrifugal pumps, DL vertical multi-stage pumps, submersible pumps. The horizontal pump has an ISW pump, a D-type multistage pump, an SH type double suction pump, a B type, an IH type, a BA type, an IR type, and the like. According to the requirements of the head flow and according to the number of stages of the impeller structure:
A. Single-stage single-suction pump: The pump has an impeller and a suction port on the impeller. The general flow range is 5.5-300m2/h, H is 8-150m, the flow is small, and the lift is low.
B. Single-stage double suction pump: The pump is an impeller and two suction ports on the impeller. The flow rate Q is 120-20000 m2/h, the head H is 10-110 meters, the flow rate is large, and the lift is low.
A. Single-suction multi-stage pump: The pump is a plurality of impellers, the discharge chamber of the first impeller is followed by the second impeller suction port, and so on.
