| 摘要 |
A centrifugal electric pump with axial suction comprises at least two impellers (6) hydraulically mounted in series in the main casing and in which, D being the distance between the central axis (17) of the delivery opening (5) and the first connecting plane (13) defined by the suction opening (4), A being the distance between the axis of rotation (X) of the impellers (6) and the electric pump (1) supporting plane (10), and B being the distance between the axis of rotation (X) and the second connecting plane (20) defined by the delivery opening (5); the following relations apply: 0.7 ‰¤ A / B ‰¤ 0.9 ; 1.3 ‰¤ A / D ‰¤ 2.25 ; and 1.6 ‰¤ B / D ‰¤ 2.9.
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