Oxygen Liquid Plant

Oxygen Liquid Plant, We are also manufacturing and supplying cryogenic liquid oxygen/nitrogen plants as a product mix mode. With leakproof stainless steel column and skid mounted version for high purity medical and industrial oxygen. You can get from 30% upto 100% Liquid oxygen/nitrogen out put. The output of liquid oxygen/nitrogen is stored in a liquid oxygen tank.

Air Compressor

Air Separation Unit

Electric Panel

Air Separation Column

Expansion Engine

Special Chilling Unit

Process Skid With Control Panel of MS Battery

OXYGEN LIQUID PLANT MANUFACTURING PROCESS

1. Compression Of Atmospheric Air By Air Compressor

The free saturated air is sucked from atmosphere through a highly efficient dry-type suction filter into the first stage of the horizontal balanced opposed, lubricated reciprocating air compressor. Compresssed air is chilled to 12 degree centigrade in a chilling unit ata temperature of 12 degree centigrade 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.

2. Purification of Air By 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 degC 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 particles gets filtered in the DUST FILTER before air enters the AIR SEPARATION COLUMN.

3. Cooling of Air By Expansion Engine (Expander)

The process air before liquefication in the air separation unit needs to be cooled to temperatures sub-zero (cryogenic). The main portion of the air after the process skid enters the expansion engine through the heat exchanger no. I after pre-cooling. The temperature of the air drops to around -165degC by the Expander which is a very highly efficient advanced design with Teflon piston rings and completely hydraulic mechanism with leakproof ball valves.

4. Separation If Liquid Air into Oxygen And Nitrogen By Air Separation Column

Chilled, Oil free and moisture free air enters into multi-pass HEAT EXCHANGER NO.I where it gets cooled to (-80) degC by cold gained from outgoing waste Nitrogen and Oxygen. A part of air this enters a multi-pass HEAT EXCHANGER NO. II or LIQUIFIER made of special Alloy tubes. This air cools to (-170) degC before passing through an expansion valve. Due to joule Thompson Effect, after the expansion valve. Due to joule Thompson Effect, after the expansion valve, air gets further cooled down and gets liquified before entering into bottom column is known as rich liquid.

The rich liquid in the bottom column enters into feed tray of top 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 latest heat of condensing Oxygen and gets vapourised whereas the liquid Oxygen flows down the trays of the top column into the Condenser passes through a Sub-Cooler to a LO Pump.

5. Compression and withdrawal of liquid and gaseous oxygen for storing in storage tank and cylinder filling

Technical Specification of Standard BO (Liquid) Models

Model		BO-50L	BO-100L	BO-200L	BO-300L	BO-500L
Capacity	Oxygen	50Ltrs/hr	100Ltrs/hr	200Ltrs/hr	300Ltrs/hr	500Ltrs/hr
Capacity	Nitrogen	200m3/hr	300m3/hr	800m3/hr	1200m3/hr	2000m3.hr
Purity	Oxygen	99.60%	99.60%	99.60%	99.60%	99.60%
Purity	Nitrogen	96%-99.9%	96%-99.9%	96%-99.9%	96%-99.9%	96%-99.9%
Power Connected		125KW	250KW	400KW	500KW	950KW
Power consumed		90KW	150KW	280KW	400KW	700KW
Power Supply		415 Volts	415 Volts	415 Volts	415 Volts	415 Volts
Working Pressure		100kg/cm2	95kg/cm2	90kg/cm2	90kg/cm2	90kg/cm2
Air Capacity		300m3/hr	600m3/hr	1200m3/hr	1800m3/hr	3000m3/hr
Areas required		8Mx12M	14Mx15M	14Mx15M	14Mx15M	14Mx15M
Assembly Height		7.5Meters	9.5Meters	9.5Meters	9.5Meters	10Meters
Weight		19Tons	30Tons	50Tons	60Tons	80Tons

Note:

Oxygen liquid plant, the output of liquid oxygen can be stored in a liquid oxygen tank. Liquid Nitrogen can be available as a by product simultaneously upto 99.999% (PPM GRADE) purity. The plant is extremely versatile and all the possible product variants are possible you can either take 100% Liquid oxygen out put or 50% Liquid oxygen output directly into cylinders or 50% Liquid oxygen and 50% Liquid nitrogen

OXYGEN LIQUID PLANT SCOPE OF SUPPLY

Suction Filter

High efficiency filter supplied with the compressor

Air Compressor: Ingersoll-Rand Make

This is a multistage heavy duty water cooled air compressor with fly wheel inter cooler, foundation bolts, motor pulley, v belt, guard and slide rails and air filter. This is used to compress atmospheric air complete with motor and Starter.

OXYGEN LIQUID PLANT PROCESS SKID (SKID MOUNTED VERSION): CONSISTING OF THE FOLLOWING

After cooler with tank
Nitrogen cooler with tank
Moisture separator
Chilling unit with Freon unit
Oil absorber filled with alumina
Molecular sieve battery on skid (Auto run of MS Battery: Our MS battery will be auto run and shall be unmanned during heating and cooling cycle due to incorporation of independent electrical control panels. This feature is exclusive about our plant that is available with any contemporary Indian manufacturer).
Defrost heater.
Gas/Air/water line as per standard layout on skid /platform prefabricated and ready for installation.
Water pump.
Inlet & outlet water lines
Drain manifold complete with ball valves for draining moisture

OXYGEN LIQUID PLANT EXPANSION ENGINE WITH MOTOR:

Complete with motor and starter with hydraulic valve control, bursting disc for safety, complete with flywheel pressure gauge, motor pulley v belt, belt guard, slide rails inter connected copper pipes (inlet and outlet) hydraulically operated high efficient engine with ball type of valves stainless steel liner vertical type of German Design.

OXYGEN LIQUID PLANT AIR SEPARATION UNIT (COLD BOX):

Air Separation Column (cold box complete) with outer steel casing, main heat exchanger, liquefier, bottom column, top column, condenser, sub cooler, liquid oxygen /nitrogen filter. Cooling pipes, insulation Material, digital electronic temperature meter pt100 sensor, DP gauge manometer, expansion valves, interconnecting piping, purity scanner for oxygen. (The internal piping of the lower and upper column and the trays in cold box are made of SS304L or SS316L and not Aluminium or copper).

OXYGEN LIQUID PLANT SPECIAL CHILLER:

PLC based water-cooled Air Chiller with imported open screw compressor from Bitzer (Germany) complete with SS 304 evaporator with SS shell and SS tubes, SS baffle plate, SS tie rod and SS tube sheet

OXYGEN LIQUID PLANT HIGH PRESSURE OXYGEN FILLING MANIFOLD:

For filling high-pressure oxygen to cylinders. It consists of main high-pressure isolation Valve and Pigtail connection with individual industrial regulation valve with pressure gauge and Safety Relief Valve.

OXYGEN LIQUID PLANT COOLING TOWER:

Induced Draft-Rotary Sprinkler type with Aluminium Casting Fan, FRP Body with suitable Electric Motor for maintaining the circulating water temperature between the Hot well and Cold well for optimum performance of the plant.

OXYGEN LIQUID PLANT WATER PUMP:

For circulation of water to Hot and Cold Well Centrifugal pump Mono Block type, RPM 1440

OXYGEN LIQUID PLANT ELECTRICAL PANEL:

For supply of electricity to individual motors. It has a bank of on/off switches and fuses. This enables the Operator to control all the Motors from one point.