OXYGEN / NITROGEN MANUFACTURING PROCESS
air compressor for
300 m3/ hr. oxygen gas plant
Air Compressor and Chilling
The free saturated air is sucked from atmosphere through a highly efficient
dry-type suction filter into the first stage of the horizontally balanced
opposed, lubricated reciprocating air compressor. Compressed air is chilled
to 12°C in a chilling unit or evaporation cooler, compressed air passes
through the coils of the chilling unit at a temperature of 12°C to a
moisture separator, where the condensed moisture gets removed before
entering into Molecular Sieve Battery. Before sending the air to
MOLECULAR SIEVE BATTERY, air is passed through an
OIL ABSORBER where air becomes oil free.
|1. Crank ShafT
||11. Cylinder IInd STG
||21. Collector Oil
|2. Bearing Big End
||12. Valve Suction
||22. Crosshead Lubricating Pipe
|3. Rod Connecting
||13. Grill Protection
||23. Distance Piece
|4. Bush Small End
||14. Plate IntermediateIInd STG
||24. Rod Pistons
|5. Valve Delivery
||15. Deflector Oil
||25. Gland Packing
|6. Nut Blocking
||16. Ring Oil Scraper
||26. Plate Intermediate 1st STG
|7. Bush Carrier
||17. Guide Crosshead
||27. Piston 1st STG
|8. Piston IInd stage
||28. Cylinder 1st STG
|9. Ring Sealing
|10. Ring Bearing
||20. Cover Inspection
Purification of Air
Chilled air passes through the Molecular Sieve Battery
consisting of Twin Tower packed with molecular sieves to
remove moisture and carbon dioxide present in the air.
Molecular Sieve Battery operates on Twin Tower System,
when one tower is under production the other tower is regenerated by passing
waste nitrogen gas at 200°C through a REACTIVATION HEATER.
After interval of 8 to 10 hours, the tower under production gets exhausted
and regenerated by similar process before use and, thus the cycle continues.
Any dust particle gets filtered in the DUST FILTER before
air enters the AIR SEPARATION COLUMN All the equipments
are mounted on process skid. (See our Catalog)
Inside view of a air
unit (Cold Box) in stainless steel
Chilled, Oil-free and moisture-free air enters into multi-pass HEAT
EXCHANGER No. 1 where it gets cooled to (-80) deg C by cold gained from
outgoing waste nitrogen and oxygen.
A part of air, this enters a multi-pass HEAT EXCHANGER NO. II
or LIQUEFIER made of special alloy tubes. This air cools to (-170) deg C
before passing through an expansion valve. Due to Joule Thompson Effect,
after the expansion valve, air gets further cooled down and gets liquefied
before entering into Bottom Column.
Rest of air at (-80) deg C from Heat Exchanger No. I enters into a highly
efficient EXPANSION ENGINE, where the air further gets
cooled down to (-150) deg C before entering into bottom column. The
liquefied air from both these streams collected at the BOTTOM COLUMN is
known as RICH LIQUID (See process flow sheet).
The RICH LIQUID in the BOTTOM COLUMN enters into feed
tray of top column. Similarly the liquid nitrogen called POOR LIQUID enters
into top column as a reflux & it takes away the latent heat of
condensing oxygen and gets vaporized whereas the liquid oxygen flows down
the trays of the TOP COLUMN into the Condenser. Liquid Oxygen from CONDENSER
passes through a SUB-COOLER to a LIQUID
Cylinder filling station
Cylinder Filling Station
Liquid Oxygen & Nitrogen passes from the condenser to the
cryogenic liquid oxygen pump for filling gas into cylinders.
A. Capacity from 20 cubic Meter / hour to 500cubic Meter/ hour
B. Pressure (150 kg/cm2) upto 300 kg/cm2
Consisting of the following
1.Cryogenic Pump 2. Internal Vaporizer 3. Cylinder Filling Manifold 4. Gas
Nitrogen filling from Gas Holder/Pipe Line by means of a
separate nitrogen filling system from by product nitrogen coming from the
cold box of the oxygen gas plant.
A. Capacity from 20 cubic Meter/ hour to 500 cubic Meter/ hour
B. Pressure upto 155/ 200/ 300 kg/cm2
Consisting Of Following
1. Gas Compressor 2. Gas Holder 3. Cylinder Filling Manifold 4. Gas Lines
Cylinder Testing Station
Cylinder Testing Station are supplied complete with all accessories
including Motorized Hydraulic Pump,Cylinder Vice , Tilting Device
,Calibration Level etc. can be supplied separately on request.
Industrial Plants Manufacturing Co.(P) Ltd.
Mr. Sanjiv Agrawal
A-104/2, Okhla Industrial Area, Phase - II
New Delhi - 110 020, Delhi, India
Mobile : +(91)-9810626301
Universal Industrial Plants Manufacturing Co.(P) Ltd.
Developed and Managed by IndiaMART