CENTRIFUGAL PUMP

PURPOSE: To provide a casing for a centrifugal pump having a guide arrangement of optimum efficiency arranged in the rear of an impeller, and being of the smallest possible size. CONSTITUTION: A bearing 5 for a pump shaft 6 is received in an outer casing 1 having two pressure side connection pipes o...

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Hauptverfasser: KAARUHAINTSU BETSUKAA, GUNTAA FUAIFUAA MIYURAA
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PURPOSE: To provide a casing for a centrifugal pump having a guide arrangement of optimum efficiency arranged in the rear of an impeller, and being of the smallest possible size. CONSTITUTION: A bearing 5 for a pump shaft 6 is received in an outer casing 1 having two pressure side connection pipes opposite each other, and an inner casing 4 is inserted therein from the drive side. The outer casing surrounds an impeller 7 in an end face region remote of a drive device, and is abutted on the end face remote of the drive device by a covering disc 9 at the pressure side. A transitional portion from the outer diameter of the covering disc 9 at the pressure side to an outer jacket 10 of the inner easing 4 is formed to suit the flow. The outer jacket 10 has a contour corresponding to the cross section of the inner casing which is gradually larger toward the direction of the pressure side connection pipe or the outer casing.