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4 Description of the Pump (Set)
4.7 Configuration and function
5
4
3
2
1
Fig. 6: Amacan with axial propeller
1
Suction nozzle (bellmouth)
3
Pump bowl
5
Shaft
7
Bearing housing, motor end
9
Bearing housing, pump end
Design The pump is designed with an axial fluid inlet and an axial outlet. The hydraulic
system sits on the extended motor shaft. The shaft runs in common bearings.
Function The fluid enters the pump axially via a suction nozzle (inlet nozzle) (1) and is
accelerated outward in a rotating flow by the rotating impeller (2). The required
energy is transmitted from the electric motor (4) to the impeller (2) via the shaft (5).
In the pump bowl (3) the kinetic energy of the fluid is converted into pressure
energy. The rotational movement of the diffusers diverts the fluid flow in axial
direction. The shaft passage through the casing is sealed towards the fluid with a
shaft seal (10). The shaft (5) runs in two rolling element bearings (6 and 8), which are
supported by the bearing housings (7 and 9).
Sealing The pump is sealed by two bi-directional mechanical seals in tandem arrangement.
A lubricant reservoir in-between the seals ensures cooling and lubrication of the
mechanical seals.
Monitoring
The pump sets are equipped with various sensors.
equipment
Standard
▪ Temperature monitoring of the motor
▪ Temperature monitoring at the lower bearings
▪ Temperature monitoring at the upper bearing
▪ Leakage monitoring of the mechanical seal system
▪ Leakage sensors in the motor space
Option
▪ Additional winding temperature monitoring with PT100
Amacan P
6
7
8
9
10
2
Impeller
4
Electric motor
6
Bearing, motor end
8
Bearing, pump end
10
Shaft seal
21 of 112
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