FIELD: engines and pumps.
SUBSTANCE: single-gear centrifugal pump unit includes a centrifugal single-gear double entry, the driving motor, the coupling, connecting their shafts, a support frame for mounting the pump and motor housing consisting of a base and a cover, the inlet and outlet, the rotor with the impeller fixed thereon mounted in the support bearings and the volute. Volute is configured as a single independent part, and a part of its outer surface provided for placement in housings made for this lid and body surfaces correspond to the shape of these lodgements. The impeller and volute are made interchangeable pairs, where the parameters of the impeller and a helical outlet in each pair calculated from the maximum efficiency while ensuring the required flow and pressure.
EFFECT: creation of a single-gear centrifugal pump assembly with a maximum efficiency in modes other than nominal, while simplifying its construction and giving it versatility.
2 cl, 4 dwg
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