The trainer is intended for experiments on the fundamental behaviour of a hydraulic circuit. Centrifugal pumps is suitable for both training in vocational colleges and for laboratory experiments in higher education. Centrifugal pumps are turbomachines that are used for conveying fluids. In centrifugal pumps, the head depends on the flow rate. This dependency is understood to be the operating behaviour of the pump and is represented in the characteristic diagram of the pump. The centrifugal pump is powered by a three-phase motor. The speed can be adjusted to the desired value with the frequency converter. An inductive, non-contact position encoder on the engine shaft records the speed. The drive motor is mounted in a pendulum bearing such that the drive torque can be measured with a force sensor and the mechanical drive power can be determined. Manometers display the pressure on the pump’s inlet and outlet. The flow rate is measured with an electromagnetic flow rate sensor. The flow rate can also be determined by means of a differential pressure measurement on an orifice plate flow meter. The equipment of the trainer includes a closed water circuit and a powerful, standard centrifugal pump. Standard pumps are built according to industrial standards. The standard defines rating schemes and key dimensions so that standard pumps from different manufacturers can be exchanged without replacing the piping and ground plate. The speed, torque, and electrical power consumption of the pump and the flow rate are shown on a digital display on the switch cabinet.

Specification:

Closed water circuit

Examination of a standard centrifugal pump

Three-phase motor to power the pump with variable speed via a frequency converter

Manometer at the inlet and outlet of the centrifugal pump

Digital displays for torque, speed, electrical power consumption and flow

Drive motor with pendulum bearing

Determination of the flow rate by using an electromagnetic flow rate sensor, or an orifice plate flow meter and a differential pressure measurement

Non-contact speed measurement at the engine shaft and force sensor for measuring the drive power.

Technical Data:

Tank

Volume: 96l

Centrifugal pump

Head: approx. 16m

Flow rate: approx. 15m3/h

Drive motor with variable speed

Speed range: 0…2400min-1

Power output: 1,1kw

Measuring ranges

Pressure: 1x -0,6…0bar, 1x 0…2,5bar

Flow rate: 5…600l/min

Speed: 0…5000min -1

Torque: 0…10nm

Power consumption: 0…2,2kw

230V, 50Hz, 1 phase

230V, 60Hz, 1 phase

230V, 60Hz, 3 phases

Dimensions and weight

LxWxH: 2000x750x1480mm

Weight: approx. 215kg.