آشنایی با انواع پمپها و اصول عملکرد آنها

Introduction:

Pump Types and Terminology

Classificstion of pumps.Differences and similarities

Photographs and cross-sectional views.list of manufactures

Pump performance(centrifugal and positive Displacement)

Net Positive Suction Head(NPSH),cavitations

 

Centrifugal Pumps:

Centrifugal pump Theory

Pump performance curves:head-capacity,power,efficiency

System curve:static versus friction components

Affinity laws

Operating point control:valve throttling versus speed controller

Parallel operation

Sealing methods:pickings,mechanical seals,and seal-less designs

Viscosity correction exercise.Constructing complete new H-Q,power and efficiency curves for a given viscosity,from the original curve on water

Case History-Double Suction Cooling Water pump troubleshooting

Reassembly of single a stage end suction centrifugal pump

Pump Wear Rings

Single-Stage and Multi-Stage Pumps

Failure Mechanisms-identification and monitoring

Participants testtwo pumps in parallel,and construct a pump curve

Field Troubleshooting,Specialty Designs,and Performance Modification Techniques

 

Positive Displacement Pumps:

Performance characteristics:flow-pressure curve,power,efficiency

Viscosity effects.Theoretical flow,actual flow,and slip

Quick rule-of-thumb estimating of a through-flow capability of a gear pump based on a single gear main dimension

Minimum required suction pressure,based on speed,viscosity and geometry. Cavitation in gear pumps

Lubrication:hydrodynamic versus boundary(PV values)

Hand-On Exercise:reassembly of a gear pump.Changing of worn bushings,gears,shafts an seals

 

Seals and Bearings:

Conventional Packing Glands

Mechanical Seals

Seal Failure Mechanisms

Maintence and Repair of mechanical Seals

Bearings-failure modes and how to extend life

 

Reliability:

Couplings

Alignment:Piping and Base plates

Planned Maintence-Predictive and Preventive

Field Troubleshooting,Specialty Designs,and performance Modification

 

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کتاب ترموفلو مهندس سعادتی 

 

کانال تلگرام پیتِک