BASIC PNEUMATICS. Properties of Compressed Air Availability Easily stored in large volumes...
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Transcript of BASIC PNEUMATICS. Properties of Compressed Air Availability Easily stored in large volumes...
BASIC PNEUMATICS
Properties of Compressed Air
Availability Easily stored in large volumes Simplicity in design and control Provides linear and rotary movement Low system cost due to low component
cost
Components have long working life resulting in longer system reliability
Environmentally friendly Safety issues are minimized e.g.. Fire
hazards; unaffected by overloads (actuators stall or slip)
Pneumatic actuators in a system do not produce heat (except for friction)
Properties of Compressed Air
Pressure Switch
Compressor DrainCheck Valve
A Basic Pneumatic SystemAir Production and Distribution System
MotorTank
Pressure GaugeRefrigerated Air Dryer
Line Filter
Directional Valve
A Basic Pneumatic SystemAir Consumption System
Air Line Take-off Drain Conditioning Unit
Actuator
Air Compression
Rotary:
Vane
Compressor
Air Receiver
A pressure Vessel (Tank) normally made of metal and installed either horizontally or vertically. This vessel provides a volume of airto be utilized by the system and reduced the loading and unloadingof the compressor.
Air Receiver (Tank)
Air Treatment
All atmospheric air carries both moisture and dust
Inlet Filter •Used to remove large particle dirt from entering the system.
•Used to prevent excessive wear of cylinder, piston rings and other moving parts in the initial stage of the system
Air DryerCompressed air cannot hold the same amount of moisture as non compressed air. Once the air is compressed, some of the moisture condenses in the tank and is removed through a drain valve. The remaining moisture will rust internal components of the system and must be removed. One way this is done by sending the air through an air conditioned chamber which will condense more of the moisture which is present.