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 trainer is intended for experiments on the fundamental behaviour of a hydraulic circuit. It is suitable for both training in vocational colleges and for laboratory experiments in higher education.
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.
Learning Objectives And Experiments
- Recording of pump characteristics
- Recording of system characteristics
- Determination of the flow rate by means of an electromagnetic flow rate sensor or an orifice plate Flow meter and a differential pressure measurement
- Calculation of efficiencies
Features
- Principle of operation of a centrifugal pump
- Closed water circuit
- Centrifugal pump, standard design
Specification
- Examination of a standard centrifugal pump
- Closed water circuit
- Three-phase motor to power the pump with variable speed via a frequency converter
- Drive motor with pendulum bearing
- Non-contact speed measurement at the engine shaft and force sensor for measuring the drive power
- Determination of the flow rate by using an electromagnetic flow rate sensor, or an orifice plate Flow meter and a differential pressure measurement
- Manometer at the inlet and outlet of the centrifugal pump
Digital displays for torque, speed, electrical power consumption and flow
Technical Specification
- Centrifugal pump
- Max. Flow rate: approx. 15m3/h
- Max. Head: approx. 16m
- Drive motor with variable speed
- Power output: 1,1kw
- Speed range: 0…2400min-1
- Tank; Volume: 96L
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
