What is the working principle of the shielding pump?

Mar 07, 2019

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What is the working principle of the shielding pump?


The driving of a common centrifugal pump is to connect the impeller shaft of the pump to the electric shaft through a coupling, and the impeller and the electric motor rotate together to work.

The shielding pump is a sealless pump. The pump and drive motor are sealed in a pressure vessel filled with pumped media. The pressure vessel is only statically sealed and is supplied by a set of wires to provide a rotating magnetic field and drive the rotor. This structure eliminates the rotary shaft seal of the conventional centrifugal pump, so that it can be completely leak-free.

The shielding pump connects the pump and the motor. The rotor of the motor and the impeller of the pump are fixed on the same shaft. The rotor and the stator of the motor are separated by a shielding sleeve. The rotor runs in the medium to be transported, and the power is transmitted through the stator magnetic field. Passed to the rotor.

In addition, the manufacture of the shield pump is not complicated, and the hydraulic end can be designed and manufactured according to the structural type commonly used by the centrifugal pump and related standard specifications.

The shield pump connects the pump and the motor. The rotor of the motor and the impeller of the pump are fixed on the same shaft. The rotor and the stator of the motor are separated by a shielding sleeve. The rotor runs in the medium to be transported, and the power is transmitted through the stator magnetic field. Passed to the rotor.

In addition, the manufacture of the shield pump is not complicated, and the hydraulic end can be designed and manufactured according to the structural type commonly used by the centrifugal pump and related standard specifications.


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