Test rig for wear in displacement pumps

Analysis of the wear behaviour of displacement pumps in continuous operation with particle-laden fluids.

Description

  • volume flow: <300 l/min
  • pressure: <40 bar
  • adjustable parameters of the operating medium:
    • choice of particles
    • average particle size
    • particle concentration
    • viscosity
  • adjustable operating parameters:
    • backpressure
    • rotational speed

Test methods

Investigation of the wear experienced while operating in an adjustable, repeatable test environment, that represents the pumps application in a real open-loop system.

Technology

  • safety coupling to protect the test rig against sudden pump failure
  • suspension tank for the preparation of a continuous particle concentration
  • measurement of the particle concentration by means of suspension density
  • modular, particle-capable setup which avoids dead volumes in the pipes
  • multi-stage filtering unit for the efficient exchange of the particles
  • drive unit: VFD-driven electrical motor with a maximum power of 22 kW
Concept schematic of the test rig for particle wear analysis in displacement pumps.
Concept schematic of the test rig for particle wear analysis in displacement pumps.