CENTRIFUGAL SECTIONAL PUMP WITH TWO PARALLEL FLOWS OF PUMPED MEDIUM Russian patent published in 2020 - IPC F04D1/06 F04D29/42 F04D29/62 

FIELD: pumps building.

SUBSTANCE: centrifugal sectional pump with two parallel flows of pumped medium is made in the form of pump housing consisting of two separate parts, in each of which there are impellers and guiding devices, and central pressure cover (C). C is installed between parts of housing. Pressure branch pipe (PBP) is made vertically centrally oriented. Additionally, there is a conversion face C for transfer of liquid from the first part of the housing to the second one through transfer channels made in pressure and transfer C in common with them. Impellers are fitted on the shaft and arranged in the first and second parts of the housing and are located opposite to each other relative to the central pressure head C. First part of the housing comprises horizontal suction and vertical PBP located on the pump drive side and made in the form of a single cast part. Vertical PBP is connected by means of transfer pipe to annular chamber of central pressure head C.

EFFECT: invention is aimed at simplification of installation, installation and repair of pump in operating conditions, reduction of pipeline piping length, possibility of dismantling and repair, as well as installation and repair of flow part of pump without disconnection of suction and discharge pipeline.

1 cl, 2 dwg