Why are the inlet and outlet pipes of the pump so thin? ? The flow rates are all very high
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Why are the inlet and outlet pipes of the pump so thin? ? The flow rates are quite high; for example, in a pump with a capacity of 30 m3/h, using water as the medium, the inlet pipe has a diameter of DN65 while the outlet pipe has a diameter of DN40. The flow velocity at the outlet is around 6 m/s. Can the piping used be the same diameter as those of the pump’s inlet and outlet? ? What problems could arise, since the bottleneck is at the pump’s inlet and outlet?
This is a design issue related to the pump structure: if the diameters of the pump’s inlet and outlet pipes are made too large, the volume of the pump head also has to increase. Usually, this is resolved by enlarging the diameter of the pump inlet and outlet pipes.
1. Sir, is the head that we usually refer to when operating a pump simply the pressure energy in the pipeline at the pump’s outlet? ? Is this kinetic energy with high flow velocity included? 2. Will a large portion of the head provided by the pump be lost at the pump’s inlet and outlet? Because the flow velocity is so high, the local losses must be very large