Compressed Air: Open University' Project Slide 1
Compressed Air: Open University' Project Slide 1
Compressed Air: Open University' Project Slide 1
Atmospheric Pressure
1 bar a 0 bar g
(1.013 bar)
Perfect Vacuum
0 bar a -1 bar g
(m) (bar)
Sea Level 1.013
500 0.945
1000 0.894
1500 0.84
2000 0.789
2500 0.737
Aftercooler
Air
Receiver
Cooling water in
Air Inlet
Filter Drain system
Compressed Air
Condensate
Compressor
Cooling Water
Com pressors
Piston S crew
Disphragm V ane
P1 F E
Po A B
Volume
Piston
0.5 4 - -
1 7.5 - -
2.5 15 14 -
5 23 20 19
7 28 24 22
10 34 28 27
14 40 32 30
Compression
Phase
Stator
Suction
Phase
Outlet Port
Rotor
‘Open University’ Project Slide 11
Screw Compressor
Shaft
Shaft
rotation
Shaft
support
Stator
vanes
1000
Reciprocating
Discharge pressure bar
500
100
50 Centrifugal
Rotary
10
Axial
5
1
0.5
Fans
0.1
5 10 50 100 500 1000 5000 10 000 100 000
Output in dm³/s
Sensor
Sight check
Compressor
Mains Water
Out
Supply In
Reverse Acting
Temperature Control
Air Sight
Eliminator Check
Air Out
Aftercooler
Cooling
Water In Drain Point
Air Inlet
Filter Compressed Air
CA Air Trap
Draining Condensate
Intercooler Cooling Water
Compressor
‘Open University’ Project Slide 17
The Saturation Curve
Temperature ºC
Compressor 4
Normal Working Day
Night shift Twilight shift
Demand
Compressor 2
System
Leakage Compressor 1
0 6 12 18 24
Cooling
water in
Air
Inlet Drain point
Filter
CA Air Trap
Draining Compressed
Intercooler Air
Condensate
Cooling
water
Compressor
‘Open University’ Project Slide 22
Refrigeration Dryer
15 ºC
Wet air
18 ºC
2 ºC
Saturated
Refrigeration unit
- 70 ºC Pressure
Dew Point
Air 100%
Saturated
From Aftercooler
Air Receiver
Drain System
Compressor
Consumption Point
1
Air inlet Air outlet
2
3
4
5
Automatic Drain
Saturation indicator
100 % water removal
5
6
4 3
‘Open University’ Project Slide 38
MR1, MR2 & MR3 Benefits
2
MP2 Miniature
11 Compressed
10
12
Air
8
3 9 Filter/Regulator
13 4
5
7
Friction reduction
Heat dissipation
Corrosion protection
Miniature, Standard
and International
versions all available
Flow
Thrust
pin Thrust pin
Temperature
sensor
Control spring
Stainless steel
bellows assembly Control spring
Bellows
Flow from
under seat
Double guided stem
Balancing bellows
Spanner operated
pressure setting plate
Chrome vanadium
springs, colour Bellows stem sealing
coded for setting
range and
interchangeability
Spring plate with
needle roller bearing
Range of
interchangeable
actuators combined Pressure chamber
with 6 spring ranges with reinforced
diaphragms
‘Open University’ Project Slide 55
DP17 G and DP17 R Pilot Operated
Pressure Reducing Valves
Downstream external
Pilot valve sensing pipe connection
Return spring
Main valve
Flow Control port
Main diaphragm
Drain hole
High DP tapping
Full range of
separators in the
following materials:
Cast iron, SG Iron,
Cast Steel and
Austenitic stainless
steel to cover all
applications