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Manufacturing Process
Air Compressor and Chilling Unit
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 |
18. Crosshead |
28. Cylinder 1st STG |
| 9. Ring Sealing |
19. Crankcase |
|
| 10. Ring Bearing |
20. Cover Inspection |
|
Purification of Air (Process Skid)
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.
Air Separation
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 OXYGEN
PUMP.
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 Lines
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.
Contact us
Mr. Bharat
Better Deal Machineries Pvt. Ltd.
UV - 67, Phase - IV, Udyog Vihar, Gurgaon,
Haryana - India - 122001
Phone : +(91)-(124)-4386230; +91-124-5519870
Phone: +91-124-5519870; +(91)-(124)-4386230
Mobile: +91-9871056668;
Fax: +(91)-(124)-4386231
Email: sales@bdmexport.com
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