4 Description of the Pump (Set)
21 of 126
Amacan K
1579.807/07-EN
4.7 Configuration and function
1
2
3
4
5
6
7
8
9
10
11
12
Fig. 6:
Amacan with closed channel impeller
1
Inlet of the pump casing
2
Impeller
3
Discharge cover
4
Shaft
5
Bearing, drive end
6
Bearing bracket
7
Electric motor
8
Impeller-end bearing
9
Bearing housing
10
Shaft seal
11
Pump casing
12
Casing wear ring
Design
The pump is designed with an axial fluid inlet and a radial fluid outlet. The hydraulic
system sits on the extended motor shaft. The shaft runs in common bearings.
Function
The fluid enters the pump axially via the inlet of the pump casing (1) and is
accelerated outward in a radial flow by the rotating impeller (2). The required energy
is transmitted from the electric motor (7) to the impeller (2) via the shaft (4). In the
pump casing (11) the kinetic energy of the fluid is converted into pressure energy.
The rotational movement diverts the fluid flow in axial direction. The casing wear
ring (12) prevents any fluid from flowing back from the casing into the inlet of the
pump casing. At the rear side of the impeller, the shaft enters the casing via the
discharge cover (3). The shaft passage through the discharge cover is sealed towards
the fluid by a shaft seal (10). The shaft runs in rolling element bearings (5 and 8),
which are supported by a bearing housing (9) and a bearing bracket (6).
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
equipment
The pump sets are equipped with various sensors.
