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E-622 - Centrifugal & Positive Displacement Pump Operation

  • Engineers and technicians involved in centrifugal and positive displacement pump operation or engineering
  • Employees in charge of running and checking pumping system
  • To provide a better understanding of centrifugal and displacement volumetric pump technology and operating principles
Learning Objectives
  • To describe the behavior and the operation of pumps
  • To analyze the technical solutions applied in their units
  • To establish a diagnosis of the incidents, and participate in the troubleshooting meetings
  • To identify essential elements in pump selection
Ways and means
  • Functional approach for a better understanding
  • Numerous examples and cases studies from the oil & gas production industry and analysis of manufacturer file

Pumping prerequisites 0.5 day
  • Pump performance
  • Hydraulic pumping fundamentals
  • Pressure, flowrate, specific gravity, friction losses, centrifugal force, height/pressure relation, mechanic and hydraulic power, vapor pressure curve, energy conservation
  • Pump choice and typical upstream implementations
Centrifugal and positive displacement pumps technology and performance 2 days
  • Centrifugal pumps
  • Functional approach
  • Study step by step of the main functions
  • Process: impeller, wear rings, balancing, pump body shape, …
  • Sealing: mechanical sealing, typical arrangements (single, dual, dry seal). Selection according API 382 standard, materials, type. Friction face heating
  • Support: axial and radial, thrust and journal bearings
  • Lubrication: oil and grease, …
  • Monitoring: rotor displacement, vibrations, temperature, pressure, …
  • Building step by step a monocellular centrifugal pump
  • Volumetric pumps
  • Different types of pumps: rotary and reciprocating pumps
  • Operating principle and utilization of the different types of pumps
  • Influence of clearance, internal leaks, nature of product on flow rate and pressure
  • Flow rate control
  • Installation guidelines: position of tanks, line diameters, metering drums, pulsation dampeners, pressure valves
  • Particular choices
  • Coupling and driven machines
  • ATEX: material consequences
Pumping system operation 1.5 days
  • Preparation: filling, draining; spare pumps: heating, ancillaries
  • Start-up/Shutdown: priming, controls, hammer shock, risks for process and pump
  • Surveillance : parameters (vibration levels, noises, bearing housing temperature, motor intensity, pressures); impact of stream parameters; hazards
  • Parallel and series operations: risks, dysfunction
  • Reliability: types and source of damage; improvement methods
Pumping system troubleshooting 0.75 day
  • Troubleshooting of most frequent problems (cavitation, priming situation, low flowrate, …)
Safety in pumping operation 0.25 day
  • Leaks, vibrations, feed, overcharge, …
  • Analysis of industrial incidents and accidents