Medical Cryogenic Air Separation Plant

99.6% Air Separation Plant Industrial KDON-350/800 Oxygen Plant With Low Energy Consumption

Atmosphere pressure       96kPa(A)
Atmosphere tempt.    25℃
Relative humidity 75%
O2 contained in air    20.95%O

Annual average tempt.                                18.4℃
Max. Tempt.                                       45℃
Min. Tempt.                                        -15℃
Average tempt. in Summer                           25℃
Average tempt. in Winter                             -15℃

Earth shake :  ＜6 Mcalli degree

 Sea level:       425m

 Impurity in atmosphere:
CO2       ≤300 ppm
SO2       ≤0.44 mg/m3
H2S       ≤2.3 mg/m3
CH4       ≤5.2mg/m3
C2H2     ≤0.03 ppm
CnHm(Except C2H2)     ≤5 ppm
Dust content       ≤10mg/m3

1.6 Recycling water

Inlet tempt.   30℃
Inlet pressure      0.4 MPa(G)
Max. pressure drop    0.2 MPa(G)
Max. tempt. rising       10℃
Turbidity of cooling water   12 mg/L
PH value       7.2

Total hardness       2.5
Fouling factor 0.0004 m2 hºC/ kW

       Water consumption: 180T/h Recycling water   ～25T/h(not incl. O2 compressor)

Power supply
HV power supply               10kV±5%
LV power supply                380V/220V±5%
Frequency                      50±0.5Hz

     Loaded power                      ～330KW(Name plate not iccl.

O2compressor)

2.  Main technical parameters

2.1 Output and purity, pressure(out of the cold box)

O2 output                             350m³/h±5%

O2 purity                             ≥99.6%O₂

O2 pressure                           ～0.034MPa(G)

N2 output                             800m³/h±5%

N2 purity                             ≤10ppmO₂

N2 pressure                           ～0.012 MPa(G)

Product output status(at 0℃,101.325Kpa)

 Start pressure                        0.65MPa(G)

 Continuous operation period between two defrosting times   12months

 Start time                            ～24 Hours

Specific power consumption            ～0.64kWh/mO₂(not incl. O2 compressor)

3. Process description:

KDON-350/500 air separation plant is of low pressure process.

Raw air comes from air, goes through air filter for removal of dust andother mechanical particle and  enters non-lub air compressor to be compressed by two stage compressor to approx.  0.65MPa(g).It goes through cooler and enters precooling unit to be cooled to 5～10℃. Then it goes to switch-over MS purifier for removal of moisture, CO2, carbon hydrogen.  Purifier consists of two molecular sieve filled vessels. One is in use while anther is under regeneration by waste nitrogen from the cold box and through heater heating.

After purified, small part of it is used as bearing gas for turbine expander, other enters cold box to be cooled by reflux(pure oxygen, pure nitrogen and waste nitrogen) in main heat exchanger. Part of air is abstracted from the middle part of main heat exchanger and goes to expansion turbine for production of cold. Most of expanded air goes through subcooler which is cooled by oxygen from upper column to be delivered to upper column. Small part of it goes through bypass to waste nitrogen pipe directly and is reheated to go out of the cold box. The other part of air continues to be cooled to near liquid air tempt to lower column.

In lower column air,air is separated and liquified as liquid nitrogen and liquid air. Part of liquid nitrogen s abstracted from the top of the lower column. Liquid air after subcooled and throttled is delivered to the middle part of upper column as reflux.

Product oxygen is abstracted from the lower part of upper column and reheated by expanded air subcooler, main heat exchange. Then it is delivered out of column. Waste nitrogen is abstracted from the upper part of upper column and is reheated in subcooler and main heat exchanger to go out of column. Part of it is used as regeneration gas for MS purifier. Pure nitrogen is abstracted from the top of the upper column and is reheated in liquid air , liquid nitrogen subcooler and main heat exchanger to be delivered out of the column.

Oxygen out of the distillation column is compressed to customer.

4. Scope of supply:

Air non-lub. compressor          2 sets

    Air discharge                1320 m³/h

    Normal operation pressure                ～0.70 MPa

    Total power load             132 KW

Dim.                2650×1600×1800 mm

Scope of supply:

.1 Main machine                             

2 Spare parts                         1 x2

3,Oil spray filter  1 Pc

 Air precooling unit        1 Group

     Type                                 CAYL-2640/8

 Air processed                       2640m³/h

      Air inlet pressure                  0.8MPa

   Air inlet tempt.                     ≤40℃

   Air outlet tempt.                     ～8℃   

 4.3.1 Imported refrigeration compressor  1set

4.3.2 Condenser                      1set

4.3.3 Evaporator                     1set

4.3.4 Pipe valve                     1set

4.3.5 Refrigeration auto element     1set

4.3.6Electric control panel          1set

4.3.7 Operation instrument panel     1set

4.3.8 Water separator                1set

4.3.9 Liquid level warning device    1set

Note:all above designed as a complete body.

4.4,MS purification system            1 set

     Type                                 HXK-2640/8

  Process capacity                        2640m³/h

  Working pressure                        0.8MPa

  Air inlet tempt.                          12℃

  Absorbing time                          8h

 Regenerating gas inlet tempt.         250℃

  Regenerating gas outlet tempt.        100℃

Heater power                              60kW

Scope of supply:

4.4.1 MS absorbent column(containing MS)   2sets

4.4.2 Heater                                                              1set

4.4.3 Filter                                                               1pc

4.4.4 Pipe and valve                    １set

4.5,Distillation column       1 set

  Manufacturer                                                        Kaide

   Model                                    FON-350/800

   Type                                 Two stage rectification column

   Process air                          2600m³/h

   O2 output                            350m³/h±5%

   O2 purity                            ≥99.6%O₂

N2 output                            800m³/h±5%

  N2 purity                             ≤10PPmO₂

   Dim.                                 2600×3000×20000mm

Scope of supply:

　 4.5.1 Main heat exchanger                                       1set

4.5.2 Subcooler                                                        2set

4.5.3 Condenser-evaporator                                     1set

4.5.4 Distillation column                1set

   4.5.5 Cold box                           1set

4.6,Expansion turbine         1 group/2 sets

    Type                                  PLPK-10.6/5.7-0.47

  Flow                                  636m³/h

 Inlet tempt.                           130K

 Inlet pressure/outlet pressure       ～0.67MPa(A)/0.147MPa(A)

  Working medium                        air

Brake method                         Fan brake

Insulation efficiency                 ≥78%

Scope of supply:

　4.7.1 Expansion turbine body                    2sets

　4.7.2 Expansion extending knob                  4ps

4.7.3 Expander inlet filter                      2ps

　Note:with distillation column as one body

4.7 Piston O2 compressor                      2 sets(non-lubricate)

Type                             ZW-3/165

Discharge capacity               3m³/min

Discharge pressure              16.17MPa

Inlet tempt.                        30℃

Discharge tempt.                    40℃

Cooling water capacity              ～5t/h

Cooling water tempt.                ≤30℃    

Cooling water pressure              ≥0.3MPa

Motor power                             55kW

Scope of supply:

4.7.1 O2 compressor body                       2sets

4.7.2 Cooler                         2sets

4.7.3 Control panel                    2sets

4.7.4 Motor                         2sets

4.8,Baloon(100m³)               1 pc   (Jiangdu)

4.9,O2 filling ramp (24connectors)    2 sets

5.  Description for instrument and electric design

KDON-350/800 plant electric and instrument control is of local panel control.

5.7.1. Air compressor has one electric control panel and control face,  pressure and tempt. indication, warning and operation bottoms are provided on the operation desk.

5.7.2. Air compressor has one electric control panel and control face,  pressure and tempt. indication, warning and operation bottoms are provided on the operation desk.

5.7.3. Purifier has purifier board and one heater power resource switch gear.

5.7.4. Instrument board for distillation column.

5.7.5. Tempt., flow rate, liquid level are digital-displayed in meters.

1. Scope of supply by the buyer

   1. Connection valves, pipes (incl. flanges, bolts, nuts, washer, gaskets and accessories), necessary pipe support, valves, valves support, insulation material, packing steel belt, etc. between each unit(machine).

   2.  Air suction part (buyer should ensure the air quality for the oxygen plant).

6.3 Measuring pipe, pipes support, cable and wire, pipes for each single unit and equipment and accessories for sealing gas system.

6.4 Anti-lightning device, earthing device for outside of the rectification column and vessels.

6.5  Engineering design for the workshop, including all civil work for , incl. light, utility engineering, workshop foundation sanitation, water supply and drainage, communication, indoor air conditioning, fire control, heating device as well as lifting device inside workshop., hoisting facility, etc.

HV power supply panel, voltage drop starter (if needed) , etc distribution equipment.

6.6 Water pumps, pipes, valves, and accessories for utility.

1.  Coating and paint for final painting of the plant.

6.8  Material and oil for operation of the plant.

6.9  Perlite and insulation material.

6.10 N2 analyzer

Competitive Advantage:

We Hang Zhou tai lian  Co., Ltd. is a gas plant and machinery supplier which is special faced to Bangladesh market.

Our supply scope has: air separation plant (gas oxygen plant, liquid oxygen plant, nitrogen plant), acetylene plant, hydrogen plant, CNG station plant, etc.

Also we are exporting gas plant related items: air compressor, oxygen compressor, liquid oxygen pump, oxygen/nirtogen/argon cylinders, cylinder valves, regulators, cylinder testing machines.

We have more than 10 companies corporated in Bangladesh.

We have the Ce certificate

  We persists in the principle of process lays the foundation,standard strengthens the quality,Implement decides the success,Innovation changes the future. According to the requirements of ISO9001 quality system standard, we have established effective quality system and feasible quality manual, which are firmly implemented. Over the past ten years, we have installed more than 300 air separation plants all over the world and have obtained the recognition of users. Our products are widely marketed throughout more than 30 provinces and autonomous regions, and also exported to dozens of countries including Vietnam, Kazakhstan, Bangladesh, Iraq, Egypt, Cambodia, Angola, Philippines, Pakistan, Venezuela, North Korea, Indian, Nigeria,etc.