Integrated shaft-free motor axial flow pump

Abstract

The invention relates to the technical field of water pumps and in particular relates to an integrated shaft-free motor axial flow pump. The integrated shaft-free motor axial flow pump comprises a pump enclosure of which the two ends are provided with connecting flanges, wherein the middle of the inner hollow cavity of the pump enclosure is provided with a pump impeller; the inner hollow cavity of the pump enclosure on the downstream side of the axial flow pump is provided with a guide vane; the outer edge of the pump impeller is provided with a rotor fixing ring; a driving motor rotor is assembled on the rotor fixing ring; the rotor fixing ring is fixed on the inner side of the pump enclosure by virtue of a fixed ring bearing; the part, corresponding to the driving motor rotor, on the inner side of the pump enclosure is provided with a groove; and a driving motor stator is assembled in the groove. The integrated shaft-free motor axial flow pump disclosed by the invention is characterized in that the shaft-free motor and the axial flow pump are integrated into a whole, so that the axial flow pump can be integrally installed in the straight pipe section of a pipeline, and the compactness and mute effect of the axial flow pump can be obviously improved. The integrated shaft-free motor axial flow pump has the advantages of simple system arrangement, small occupied space and easiness for construction and design.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to an integrated shaftless motor axial flow pump. In particular, it refers to an integrated shaftless motor axial flow pump suitable for circulating water pumps in compact space water delivery systems. Background technique [0002] Axial flow pumps have the characteristics of low head and large flow, and are suitable for circulating water pumps in water delivery systems. At present, the drive shaft (rotation shaft) of axial flow pumps passes through the pipe wall and connects with prime movers (such as diesel engines, etc.). Such as Figure 4 As shown, the main problems brought about by this layout type are: [0003] (1) The pipeline where the drive shaft passes needs to be a bent pipe to ensure the installation space of the drive shaft outside the pipe. The system layout is complex and takes up a lot of space; [0004] (2) The drive shaft needs to pass through the pipe wall, ...

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Problems solved by technology

[0005] In view of the defects existing in the prior art, the purpose of the present invention is to provide an integrated shaftless motor axial flow pump, which solves the shortcomings of traditional axial flow pumps such as complex structure, inconvenient installation, and high requirements for dynamic seal design. The pump is integrated, so that the axial flow pump can be installed in the straight pipe section as a whole, which significantly improves the compactness and quiet effect of the axial flow pump. The system layout is simple, the space occupied is small, and it is easy to construct and design

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