Medical/Industrial 50nm3/h Oxygen Plant 99.6% Purity Cryogenic Air Separation Plant Unit
99.6% Air Separation Plant KZO-50 Industrial Oxygen Plant With Low Energy
ConsumptionConsumption
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- Basic Design Condition(Confirmed by User later on)
Ambient Design Condition:
Ø Ambient pressure
101.3kPa(A)
Ø Ambient temperature
30 ºC
Ø Relative humidity
75%
Ø Ambient oxygen content
20.95%O2
Ambient Temperature:
Ø Annual average temperature
18.4 ºC
Ø Extreme maximum temperature
40 ºC
Ø Extreme minimum temperature
-1.8 ºC
Ø Average temperature in summer
30 ºC
Ø Average temperature in winter
7.5 ºC
Ø Seismic force
<6 Mercalli Scale
Ø Elevation
50m
Ambient Air Composition at the End-user’s Site:
Ø CO2
≤350 ppm
Ø SO2
≤0.44 mg/m3
Ø H2S
≤2.3 mg/m3
Ø CH4
≤5.2mg/m3
Ø C2H2
≤0.03 ppm
Ø CnHm(excl. C2H2)
≤5 ppm
Ø Dust content
≤10mg/m3
Circulating water(notice:not for fan-cooled plant)
Ø Inlet water temperature
30℃
Ø Inlet water pressure
0.4 MPa(G)
Ø Maximum pressure drop
0.2 MPa(G)
Ø Maximum temperature rise
10℃
Ø Cooling water turbidity
12 mg/L
Ø PH value
7.2
Ø Total rigidity
2.5
Ø Fouling factors
0.0004 m2 hºC/ K.W
Electricity Supply:
Ø HV(notice: only for plant with HV)
10,000V±5%(3phase 3wire)
Ø LV
380V/220V±5% (AC 3phase 4 wire)
Ø Frequency
50±0.5HZ
Stand-by Instrument Air to be Supplied by Client (for plant start-up)
(notice: only for plant with pneumatic valves)
Ø Pressure
0.5 MPa(G)
Ø Temperature
≤30 ℃
Ø Dew point
<-40℃
Ø Flow rate
~m3/h
Ø Requirement
Oil free
- Main technical data
Production, Purity, Pressure (Out of the Cold Box):
medium
Production (Nm3/h)
Purity
Pressure (MpaG)
Oxygen
50±5%
≥99.6%O2
~15
Product Production State(0 ºC, 101.325Kpa)
Start-up pressure
1.3MPa(G)
Running period
12months
Start time needed
~10hours
- Process Brief Description
Ø Raw material air is put through a filter to remove dust and mechanical matter, inhaled by air filter from the atmosphere to remove dust and other mechanical impurities, and enter into injection screw air compressor, through the secondary compression to 1.3MPa (gauge pressure), cooled by after-cooler, enter into the precooling unit,and precooling to 5 ~ 10 ºC, and enter into the oil mist filter group after removed oil then to the switch type molecular sieve purifier, the moisture in the air, carbon dioxide, and hydrocarbons are absorbed. Molecular sieve purifier is composed of two filling molecular sieve containers, one is in use, and the other one is regenerating the molecular sieve after waste nitrogen in the cold box heated by electric heater.
After air purification, small part as bearing gas of the gas-bearing expansion turbine, the rest of the air is divided into two parts. Most of air gets into main heat exchanger of cold box, and be cooled by expended backflow waste nitrogen. The other small part of air enters into high pressure liquid oxygen evaporation heat exchanger of cold box, and evaporation cooling by the liquid oxygen. Then two parts of air converge in the main heat exchanger central, be cooled again and go into the main heat exchanger air side after reaching certain moisture content. The air is drew out after condensed and liquefied ,through Sub-cooler and throttle to the top of fractionating column as backflow. Liquid oxygen is pumped out of main heat exchanger after the liquid oxygen pump pressurized into the hyperbaric oxygen heat exchanger, be heated and vaporized by air, reheat to normal temperature and discharge out of cold box, filling station fills bottles and provide to users. Pressurized waste nitrogen draw out the top of upper column, after preliminary reheat then expand in gas-bearing turbo expander , expanded waste nitrogen reheat in main heat exchanger, and then out of the cold box as regeneration gas of molecular sieve adsorber. For the safety of equipment operation, small part of liquid air discharge from column regularly to avoid hydrocarbons especially acetylene gathered.Instrument Control System
Ø The overall design principle for instrumentation & electrical design of the KZO-50 ASU is local control on each individual unit, with detailed description as follows:
Ø Air Compressor, pre-cooler and so on have electronic control cabinet and operation plate with themselves, set alarm and operate button.
Ø Molecular sieve purifier, electrical heater, turbo expander and distillation column set two local cabinet which temperature, flow rate, liquid level all adopt digital indicator, molecular sieve sequence switch adopts Siemens PLC automatic control.
Scope of supply: (Note: Take manufacturer’s final actual supply as standard)
Qty.
Ø Local cabinet of purifier
1
Ø Local cabinet of oxygen plant
1
Ø Differential pressure transmitter and three valves group
2
Ø Standard orifice plate
1
- Scope of Supply
1. Oil screw air compressor
1 Set (water cooled type)
Technical Parameters (Note: Take the final design parameters as standard)
Manufacturer
Atlas Copco or Ingersoll
Type
GA75
Discharge flow rate
10.3m3/min
Discharge Pressure
1.3MPa(G)
Motor power
75KW
Scope of supply(Note: Take manufacturer’s final actual supply as standard)
quantity
Ø Main motor
1
Ø Compressor
1
Ø Electronic control cabinet
1
Ø Spare parts
1
Picture(Note : The picture for reference only, take material object as standard)
2. Air Pre-cooler
1 Sets (Air Cooling)
Technical Parameters (Note: Take the final design parameters as standard)
Manufacturer
Siad
Type
GAYL-618/13
Flow rate
618m3/h
Inlet pressure
≤1.3MPa(G)
Air inlet temperature
≤40℃
Air outlet temperature
~8℃
Motor power
~6KW
Scope of supply(Note: Take manufacturer’s final actual supply as standard)
Qty.
Ø Inlet refrigerate compressor
1
Ø Condenser
1
Ø Evaporator
1
Ø Pipe and valve
1
Ø Refrigerate automatic element
1
Ø Control plate of electrical equipment
1
Ø Operation instrument board
1
Ø Water separator
1
Ø Automatic drainer
1
3. Oil mist filter
1 Set
Technical Parameters (Note: Take the final design parameters as standard)
Filter element
Hankison or other equal brands
Filter element
618m3/h
Air flow rate
≤1.3MPa(G)
Inlet pressure
≤40℃
Air Inlet temperature
≤0.001ppm
Note: Skid-mounted frame design with Air Pre-cooler
Picture(Note : The picture for reference only, take material object as standard)
4. Air purification system
1 Set
Technical Parameters (Note: Take the final design parameters as standard)
Manufacturer
Siad
Type
HXK-618/13
Air flow rate
618m3/h
Working pressure
1.3MPa
Suction temperature
12℃
Adsorption time
8h
Temperature of resurgent gas inlet adsorber
170℃
Temperature of resurgent gas outlet adsorber
100℃
Electrical heat power
~15KW
Scope of supply: (Note: Take manufacturer’s final actual supply as standard)
qty
Ø Molecular sieve vessel(incl. M/S)
2
Ø Electrical heater
1
Ø Filter
1
Ø Pipe valves
1
Ø Insulation material
1
Note: Above is skid-mounted frame design.
Picture(Note : The picture for reference only, take material object as standard)
5. Fractionating column
1 Set
Technical Parameters (Note: Take the final design parameters as standard)
Manufacturer
Siadgas
Type
F0-50
Model
Single column
Dimension
~2000×2300×7500mm
Scope of supply: (Note: Take manufacturer’s final actual supply as standard)
qty
Ø Main heat exchanger
1
Ø Sub-cooler
2
Ø Condensation evaporator
1
Ø High-pressure heat exchanger
1
Ø Oxygen column
1
Ø Cold box
1
Ø Perlite
ENOUGH
Picture(Note : The picture for reference only, take material object as standard)
6. Turbo expander
1 Set of 2 PCS
Technical Parameters (Note: Take the final design parameters as standard)
Manufacturer
Suzhou Xida or Jiangxi Oxygen
Working medium
Waste nitrogen
Flow rate
450Nm3/h
Inlet pressure
~0.371MPa(A)
Outlet pressure
0.126MPa(A)
Inlet temperature
132K
Brake mode
Fan brake
Adiabatic efficiency
≥72%
Scope of supply: (Note: Take manufacturer’s final actual supply as standard)
Qty.
Ø Turbo expander
2
Ø Expansion joint
4
Ø Expander inlet filter
2
Ø Refine filter
1
Ø Air filter
2
Ø Silencer
2
Note: Skid-mounted frame design with Fractionating column
Picture(Note : The picture for reference only, take material object as standard)
7. Cryogenic liquid oxygen pump
1 Set
Technical Parameters (Note: Take the final design parameters as standard)
Type
horizontal ,piston, gear drive
Working medium
liquid oxygen
Flow rate
60~70L/h
Inlet pressure
~0.095MPa(A)
Outlet pressure
~15MPa(A)
Motor power
~3KW
Scope of supply: (Note: Take manufacturer’s final actual supply as standard)
Qty.
Ø Pump head
1
Ø Transmission case
1
Ø Electric motor
1
Ø Electric control cabinet
1
Picture(Note : The picture for reference only, take material object as standard)
8. Oxygen filling device (24 heads)
1 Set (incl. copper pipe)
Picture(Note : The picture for reference only, take material object as standard)
9. Unit equipment connected process pipe(being removed after factory pre-assembly)
1 Set
| O2 output | 50nm3/h |
| O2 purity | >99.6% |
| Start-up pressure | 1.3mpa |
| Running period | 12 months |
| Starting time | 0-10hours |
| Requirement | Oil free |
| High voltage | 10000V |
| Low voltage | 380V/220V |
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