SR-HM305 Centrifugal pump Educational Equipment Fluid Mechanics Experiment Equipment

 I. Description

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 SR-HM305 is intended for experiments on the fundamental behaviour of a hydraulic circuit. SR-HM305 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.

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 speed, torque, and electrical power consumption of the pump and the flow rate are shown on a digital display on the switch cabinet.

1. Specification
2. examination of a standard centrifugal pump
3. closed water circuit
4. three-phase motor to power the pump with variable speed via a frequency converter
5. drive motor with pendulum bearing
6. non-contact speed measurement at the engine shaft and force sensor for measuring the drive power
7. determination of the flow rate by using an electromagnetic flow rate sensor, or an orifice plate flow meter and a differential pressure measurement
8. manometer at the inlet and outlet of the centrifugal pump
9. digital displays for torque, speed, electrical power consumption and flow

III. Technical data

9. Centrifugal pump
10. flow rate: approx. 15m3/h
11. head: approx. 16m
12. Drive motor with variable speed
13. power output: 1,1kW
14. speed range: 0…2400min-1
15. Tank
16. volume: 96L
17. Measuring ranges
18. pressure: 1x -0,6…0bar, 1x 0…2,5bar
19. flow rate: 5…600L/min
20. speed: 0…5000min -1
21. torque: 0…10Nm
22. power consumption: 0…2,2kW
24. 230V, 50Hz, 1 phase
    230V, 60Hz, 1 phase
    230V, 60Hz, 3 phases

Dimensions and weight

LxWxH: 2000x750x1480mm
Weight: approx. 215kg