Comparison Of Pumps

Categories: Engineering Lab Equipment

The experiments familiarise students with various pump types, such as centrifugal and positive displacement pumps.The trainer includes two centrifugal pumps, one piston pump as a positive displacement...


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The experiments familiarise students with various pump types, such as centrifugal and positive displacement pumps.
The trainer includes two centrifugal pumps, one piston pump as a positive displacement pump and a self-priming side-channel pump. The side-channel pump works primarily as a centrifugal pump and, depending on liquid level, can also act as a positive displacement pump. This means, as a special feature, the side-channel pump also permits gases to be pumped.
The pump being investigated pumps water in a closed circuit. In the process, the performance data of the pump and pressure losses in the pipeline are recorded. The centrifugal pumps can also be operated in parallel or in series configuration. Each pump is driven by a separate three-phase AC motor. The speed of the motors for the centrifugal pumps is variably adjustable by a frequency converter. All motors are mounted on swivel bearings, so the torque can be measured by way of a force sensor, enabling the mechanical drive power output to be determined.

Learning Objectives/Experiments
Investigation and comparison of the operating behaviour of various pump types:
Centrifugal pumps
Piston pump (positive displacement pump)
Side-channel pump
Recording a pump characteristic curve
Recording a system characteristic curve
Determining efficiency
Investigation and comparison of parallel and series configuration of centrifugal pumps
Comparison of pump types

Specification
Experiments relating to key issues in pump engineering
Comparison of various pump types: centrifugal pump, piston pump, side-channel pump
Operation of centrifugal pumps in parallel or series configuration
Free position for additional pump
Three-phase AC motors for centrifugal pumps and additional motor with variable speed by frequency converter

Technical data
Centrifugal pump 2x
max. flow rate (Q): 300L/min
max. head (H): 16,9m
nominal speed: 2900min-1
Three-phase AC motor 2x, for centrifugal pump
power output: 1,1kW
Side-channel pump, self-priming, one-stage
Q: 83,3L/min, H: 50m
nominal speed: 1450min-1
Three-phase AC motor for side-channel pump
power output: 1,1kW
Piston pump
Q: 17L/min, H: 60m
nominal speed: 405min-1
Three-phase AC motor for piston pump
power output: 0,55kW
Three-phase AC motor, additional motor, reversible
power output: 0,75kW
speed range: 750…3000min-1
Measuring ranges
flow rate: 0…500L/min
pressure (inlet): -1…1,5bar
pressure (outlet): 0…10bar
torque: 0…15Nm
speed: 0…3000min -1
pump electrical power consumption: 0…2kW
400V, 50Hz, 3 phases
400V, 60Hz, 3 phases
230V, 60Hz, 3 phases




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quick overview :

The experiments familiarise students with various pump types, such as centrifugal and positive displacement pumps.
The trainer includes two centrifugal pumps, one piston pump as a positive displacement pump and a self-priming side-channel pump. The side-channel pump works primarily as a centrifugal pump and, depending on liquid level, can also act as a positive displacement pump. This means, as a special feature, the side-channel pump also permits gases to be pumped.
The pump being investigated pumps water in a closed circuit. In the process, the performance data of the pump and pressure losses in the pipeline are recorded. The centrifugal pumps can also be operated in parallel or in series configuration. Each pump is driven by a separate three-phase AC motor. The speed of the motors for the centrifugal pumps is variably adjustable by a frequency converter. All motors are mounted on swivel bearings, so the torque can be measured by way of a force sensor, enabling the mechanical drive power output to be determined.

Learning Objectives/Experiments
Investigation and comparison of the operating behaviour of various pump types:
Centrifugal pumps
Piston pump (positive displacement pump)
Side-channel pump
Recording a pump characteristic curve
Recording a system characteristic curve
Determining efficiency
Investigation and comparison of parallel and series configuration of centrifugal pumps
Comparison of pump types

Specification
Experiments relating to key issues in pump engineering
Comparison of various pump types: centrifugal pump, piston pump, side-channel pump
Operation of centrifugal pumps in parallel or series configuration
Free position for additional pump
Three-phase AC motors for centrifugal pumps and additional motor with variable speed by frequency converter

Technical data
Centrifugal pump 2x
max. flow rate (Q): 300L/min
max. head (H): 16,9m
nominal speed: 2900min-1
Three-phase AC motor 2x, for centrifugal pump
power output: 1,1kW
Side-channel pump, self-priming, one-stage
Q: 83,3L/min, H: 50m
nominal speed: 1450min-1
Three-phase AC motor for side-channel pump
power output: 1,1kW
Piston pump
Q: 17L/min, H: 60m
nominal speed: 405min-1
Three-phase AC motor for piston pump
power output: 0,55kW
Three-phase AC motor, additional motor, reversible
power output: 0,75kW
speed range: 750…3000min-1
Measuring ranges
flow rate: 0…500L/min
pressure (inlet): -1…1,5bar
pressure (outlet): 0…10bar
torque: 0…15Nm
speed: 0…3000min -1
pump electrical power consumption: 0…2kW
400V, 50Hz, 3 phases
400V, 60Hz, 3 phases
230V, 60Hz, 3 phases



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