Forced-circulation axial flow pump

Abstract

A forced circulation axial flow pump, its structural feature is that a mechanical seal device and a guide bearing are sequentially installed on the pump shaft close to the end of the impeller; The stability is enhanced, which prolongs the service life of the equipment; the mechanical seal device completely isolates the shaft from the conveying medium, effectively prevents the wear and corrosion of the shaft, and reduces the maintenance cost of the equipment. The pump cover, the bearing body and the pump shaft form a whole and are connected to the pump body. The rotor parts can be completely pulled out, which is convenient for disassembly and maintenance, saving time and effort. There are through holes on the pump cover and the support pipe, which are connected to the seal flushing interface, and the flushing fluid input through the interface can cool and lubricate the shaft and guide bearing, reducing the mechanical failure of the rotor parts due to temperature changes. The pump body is designed in the form of a 90° elbow between the inlet and outlet of the pump, which can be directly connected to the pipeline without any support, and the installation is quick and easy.

Description

technical field [0001] The invention relates to the technical field of mechanical engineering pumps, in particular to a forced circulation axial flow pump. Background technique [0002] At present, horizontal axial flow pumps are more and more widely used, and their structural characteristics are: the axial dimension is relatively long, and the cantilever of the pump shaft at the end of the impeller is relatively large, which leads to poor overall operation stability of the pump and shortens the life of the pump. The connection between the pump cover and the pump body is more complicated, the assembly and disassembly are more troublesome, and the maintenance is also inconvenient. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a forced circulation axial flow pump with reduced cantilever for installing the pump shaft at the impeller end and convenient disassembly and maintenance. ...

AI Technical Summary

Problems solved by technology

[0002] At present, horizontal axial flow pumps are more and more widely used, and their structural characteristics are: the axial dimension is relatively long, and the cantilever of the pump shaft at the end of the impeller is relatively large, resulting in poor overall operation stability of the pump and a short service life of the pump

The connection between the pump cover and the pump body is more complicated, the assembly and disassembly are more troublesome, and the maintenance is not convenient

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