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Reciprocating Compressors : Principles, Operation and Design
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Introduction
Before you start this course
Compressors overview : Introduction
Compression methods
Introduction
Reciprocating compressors : Simplified 3D animation
Pressure - Volume diagram
Piston displacement
Volumetric efficiency
Inlet capacity
Piston speed
Discharge temperature
Compressor head
Power
Valve loss
Clearance loss
Piston ring leakage
Valve slip
Effect of multistaging
Interstage pressures
Effect of altitude
Brake horsepower
Introduction
Classifications
Automatic valves
Useful terminology
Considerations in selection
Selection possibilities
Selection of AIR compressors
Selection of PROCESS compressors
Reciprocating compressors in a process system
Centrifugal compressors in a process system
Introduction
Crankcase
Distance piece
Cylinders
Cylinder arrangements
Cylinder materials
Cylinder liners
Pistons
Piston dismantling
Piston materials
Piston to piston rod connections
Piston rods
Piston rod materials
Piston rod to crosshead connections
Crossheads
Crankshafts
Crankshaft - Rod - Crosshead - Piston Assembly
Piston rings and rider bands
Piston rod packings
Packing rings
Packing ring arrangements : Single acting
Packing ring arrangements : Double acting
Packing ring arrangements : Pressure breaker
Piston rod packing assembly
Oil wiper packing
Introduction
What is a compressor valve ?
Basic requirements
Basic function
Valve types
Ported plate valves
Ported plate valves - 3D animation
Concentric ring valves
Concentric ring valves - 3D animation
Disc valves (poppet)
Rectangular valves
Suitability of valves
Valve materials
Valve failure analysis
Troubleshooting valve problems
How to install and remove a compressor valve
Pulsation control
Sizing a compressor volume bottles
Introduction
Intake valve unloading
Intake valve unloading - Hand operated valves
Intake valve unloading - Air operated valves
5 step control
Clearance pocket
Clearance pocket - Hand operated valve
Clearance pocket - Air operated valve
Clearance pocket - Variable volume valve
Intake valve unloading combined with clearance pocket
Introduction
Crankcase / Bearings lubrication methods
Lubrication Method #1 : Splash lubrication
Lubrication Method #2 : Splash and flood lubrication
Lubrication Method #3 : Full pressure circulation lubrication
Factors affecting bearing lubrication
Cylinder and packing lubrication
Method of application
Pumps with a sight glass
Pumps with a pressurized supply
Rate of oil feed
Introduction
Over cooling
Cooling systems
Download me
ABOUT THE COURSE
Introduction
Preview
Before you start this course
COMPRESSORS OVERVIEW
Compressors overview : Introduction
Compression methods
THEORY OF RECIPROCATING COMPRESSORS
Introduction
Reciprocating compressors : Simplified 3D animation
Pressure - Volume diagram
Piston displacement
Volumetric efficiency
Inlet capacity
Piston speed
Discharge temperature
Compressor head
Power
Valve loss
Clearance loss
Piston ring leakage
Valve slip
Effect of multistaging
Interstage pressures
Effect of altitude
Brake horsepower
CHARACTERISTICS OF RECIPROCATING COMPRESSORS
Introduction
Classifications
Automatic valves
Useful terminology
COMPRESSOR TYPE SELECTIONS
Considerations in selection
Selection possibilities
Selection of AIR compressors
Selection of PROCESS compressors
RECIPROCATING vs CENTRIFUGAL
Reciprocating compressors in a process system
Centrifugal compressors in a process system
MECHANICAL DESIGN OF RECIPROCATING COMPRESSORS
Introduction
Preview
Crankcase
Distance piece
Cylinders
Cylinder arrangements
Cylinder materials
Cylinder liners
Pistons
Piston dismantling
Piston materials
Piston to piston rod connections
Piston rods
Piston rod materials
Piston rod to crosshead connections
Crossheads
Crankshafts
Crankshaft - Rod - Crosshead - Piston Assembly
Piston rings and rider bands
Piston rod packings
Packing rings
Packing ring arrangements : Single acting
Packing ring arrangements : Double acting
Packing ring arrangements : Pressure breaker
Piston rod packing assembly
Oil wiper packing
COMPRESSOR VALVES
Introduction
Preview
What is a compressor valve ?
Basic requirements
Basic function
Valve types
Ported plate valves
Ported plate valves - 3D animation
Concentric ring valves
Concentric ring valves - 3D animation
Disc valves (poppet)
Rectangular valves
Suitability of valves
Valve materials
Valve failure analysis
Troubleshooting valve problems
How to install and remove a compressor valve
PULSATION CONTROL
Pulsation control
Sizing a compressor volume bottles
CAPACITY CONTROL OF RECIPROCATING COMPRESSORS
Introduction
Preview
Intake valve unloading
Intake valve unloading - Hand operated valves
Intake valve unloading - Air operated valves
5 step control
Clearance pocket
Clearance pocket - Hand operated valve
Clearance pocket - Air operated valve
Clearance pocket - Variable volume valve
Intake valve unloading combined with clearance pocket
LUBRICATION OF RECIPROCATING COMPRESSORS
Introduction
Preview
Crankcase / Bearings lubrication methods
Lubrication Method #1 : Splash lubrication
Lubrication Method #2 : Splash and flood lubrication
Lubrication Method #3 : Full pressure circulation lubrication
Factors affecting bearing lubrication
Cylinder and packing lubrication
Method of application
Pumps with a sight glass
Pumps with a pressurized supply
Rate of oil feed
COMPRESSOR COOLING
Introduction
Over cooling
Cooling systems
DOWNLOADABLE RESOURCES
Download me
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