High-pressure double-suction pump

The utility model relates to a high-pressure double-suction pump comprising a suction chamber, a pump shell, an impeller, a shaft, and a containerization type mechanical sealing device between the pump shell and the shaft, an impeller ring sealing device and a washing device with mechanical sealing, wherein the suction chamber comprises a suction port, a flow dividing section and a spiral section, the flow dividing section comprises a left passageway, a right passageway and a volute wall between the left passageway and the right passageway, and the volute wall is provided with a water dividing tongue extending towards the direction of the suction port; the outer surface of the flow dividing section of the suction chamber is provided with at least one radial reinforcing rib surrounding the flow dividing section by one circle; the high-pressure double-suction pump solves the technical problem that the suction chamber of the existing double-suction pump has low efficiency and long hydraulic strength test time, a