MULTI-STAGE CENTRIFUGAL PUMP

摘要

A multistage centrifugal pump includes a foot part (1) and a head part (7), between which several pump stages are arranged. Each of the pump stages includes an impeller (4) and a housing (5) surrounding the impeller (4). The housings (5) are arranged over one another. The housings (5) together with an outer casing (9) form an annular channel (8). The housings (5) together with an outer casing (9) are clamped via clamping bolts (11) which are fastened on the head part (7) and the foot part (1). The clamping bolts (11) are arranged within the annular channel (8).

主权项

1. A multi-stage centrifugal pump comprising:
a foot part comprising a suction connection and a delivery connection; a head part; at least two pump stages are arranged between the foot part and the head part, said stages each comprising an impeller and a housing surrounding the impeller; an outer casing surrounding each housing at a distance and forming an annular channel; clamping bolts connecting the head part and the foot part to one another amid the inclusion of the casing and the housings, wherein the annular channel leads the delivery fluid to one of the connections, wherein the clamping bolts are arranged in the annular channel.