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The usual submersible pump is sealed against fluid entry

The usual submersible pump is sealed against fluid entry

Submersible sewage pump is provided which is adapted for location in a sump or the like, and which includes a motor case, a driving motor, an impeller case, and an impeller located in the impeller case, the impeller defining a back shroud space between its upper face and the confronting, superjacent portion of the impeller case.

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2019/10

The working principle of centrifugal pump

The working principle of centrifugal pump

The working principle of  centrifugal pump is that when pump is filled with water, centrifugal force generated by the rotation of the impeller, the impeller channel water thrown to the periphery by centrifugal force flows into the pump housing, thus reducing the pressure on the center of the impeller, the pressure is lower than the inlet the pressure, the water at this pressure difference flows into the pool by the suction impeller. Such pumps can continue to supply the water continuously.

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2019/10

Interstage leakage

Interstage leakage

In the multi-stage volute pump, two spacer plates unequal pressure stage, there remain some leakage losses, depending on the arrangement of the structure, at both sides of the pressure level may be spaced one, two to three, the differential pressure level, the pressure bulkhead on the left for the two right pressure bulkhead for the three. The more relevant series, the leakage between the spacer will be more severe punishment.

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2019/10

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