Process
1. Air Compressor : Air is compressed at a low pressure of 5-7 bar (0.5-0.7mpa). It is done by using the latest compressors (Screw/Centrifugal Type).
2. Pre Cooling System : The second stage of the process involves use of a refrigerant for pre-cooling the processed air to temperature around 12 deg C before it enters the purifier.
3. Purification of Air By Purifier : The air enters a purifier, which is made up of twin molecular Sieve driers that function alternatively. The Molecular Sieve separates the carbon dioxide & moisture from the process air before the air reaches at air separation Unit.
4. Cryogenic Cooling of Air By Expander : The air must be cooled to sub zero temperatures for liquefaction. The cryogenic refrigeration and cooling is provided by a highly efficient turbo expander, which cools the air to temperature below -165 to-170 deg C.
5. Separation of Liquid Air into Oxygen and Nitrogen by Air Separation
6. Column : The air that enters the low pressure plate fin type heat exchanger is moisture free, oil free and carbon dioxide free. It is cooled inside the heat exchanger below sub zero temperatures by air expansion process in the expander.
7. It is expected that we achieve a difference delta as low as 2 degree Celsius at the warm end of exchangers. Air gets liquefied when it reaches at the air separation column and is separated into oxygen and nitrogen by the process of rectification.
Liquid Oxygen is Stored in a Liquid Storage Tank : Liquid oxygen is filled in a liquid storage tank that is connected to the liquefier forming an automatic system. A hose pipe is used for taking out liquid oxygen from the tank.
Product Outputs
A. Oxygen Purity gas 99.7% at 150-160 Bar (2200PSIG) as required for oxygen cylinder filling .
B. high purity Nitrogen 99.99 %( 3ppm optional) or cylinder filling.
c. Liquid Nitrogen and Oxygen fill into cryogenic liquid storage tank
NOTE : There is no loss of oxygen production when producing high purity nitrogen.
Scope & Supply of Cryogenic Nitrogen Plant
l. Air Compressor : Rotary air compressor screw type can be used for smaller size plants upto 50 m3/hr & 1000 m3/hr. Upto 40000m3/hr. Centrifugal compressor can be used for higher size plants.
2. Air pre cooling system : Air separation plants adopt chilling system in all air pre-Cooling systems.
3. Air purification system : Molecular sieves are used in the air purification system to remove the Co2 & moisture for the process air at low- Pressure.
4. Air separation column : (Air separation column-cold box) consists of outer steel casing, Main heat exchanger, liquefier, Bottom column, Top column, Condensor, Sub-cooler, Liquid oxygen & nitrogen filter. Cooling pipe line, insulation material, Digital electronic temperature indicator & scanner, PT 100 sensor, DP gauge monometer, Expansion valve with long stem type with pointer & index & wheel -1 set.
5. Expander : Expander is used for giving cooling to the air for the liquefaction process and braked by booster, so as to reduce the expanded air volume, stabilize the upper columns working condition and reduce power consumption. The turbine expanders have complete trouble free working and long life and reliability.
6. Control Panel : Pure nitrogen plants can be configured for automatic operation through a pc. This will use a out switching valves of German or Japanese And motorized cryogenic valves on cold box.
Applications
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OIL & GAS
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BEVERAGE INDUSTRY (COCA COLA ,JUICE BOTTLING )
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GLASS INDUSTRY
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FREEZING SEAFOOD
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NITROGEN REFINERY
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TUNNEL FREEZING
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& MANY OTHERS
Customer Cases
NZ0-30, NZO-60 PSA OXYGEN PLANT EXPORTED TO MYANMAR IN AUG - NUZHUO
The PSA oxygen generator plant with 30nm3 production, oxygen purity with 93-95%, the local government come to inspect our equipment operation and oxygen quality etc, until now our company have sold around 80 sets oxygen plant to Myanmar, and cryogenic oxygen production line, with 99.6% oxygen purity, for filling cylinder or pipeline to hospital use.
THE MAX CAPACITY NZO-200 PSA OXYGEN GENERATOR FOR COMBUSTION-SUPPORTING
PSA oxygen generator meets the requirement of industrial, this 200Nm3/h machine use to producing oxygen for combustion, and this model is the max capacity for this type. Also PSA oxygen plant used for the medical hospital, we have exported to many countries, #Myanmar, #India, #Peru, #Russia, etc. Which support to connect to hospital oxygen tube directly, as well as filling into cylinders( we will supply filling station for you).
TWELVE SETS NZO-20 PSA OXYGEN PLANT, 5L/H SMALL LIQUID NITROGEN EXPORT TO PERU IN MAR
NZO-20 model oxygen generator equipped with heatless compressed adsorption dryer and refrigerated dryer whose dew point can be -60 degree C , Altas brand air compressor, duplex skid mounted type.
Another clients looking for small liquid nitrogen generator for embryo sperm culture, laser cutting, food preservation.
CRYOGENIC OXYGEN AND NITROGEN PLANT - SEPARATION TOWER- NZDON-50-50 TO RUSSIA, KENYA
Specification: Producing 50Nm3/h oxygen with ≥99% purity and 50Nm3/h nitrogen with 99.99% purity.
Scope of supply: Air compressor system, Pre-cooling system, Air purification system, Fractionating column system ( cold box ), Turbo expander system, Filling system, Instrument and electric control system, Drawing design, etc
FAQ
Q1: Are you a trading company or manufacturer?
A: Firstly. we are a manufacturer, we have our own factory and engineers.
Secondly, we have our own international trade teams to provide services for you.
Thirdly, we provide the lifetime technology support and the best after-sale service.
Q2: What is your term of payment?
A: 30%T/T in advance and balance before shipment.
B. 30% T/T in advance and Irrevocable L/C at Sight.
C. Accept negotiation.
Q3: How long is your delivery time?
A: Depending on what type of machine you are purchased.
PSA series, Gas compressor, the delivery time is 10-15 days.
Cryogenic ASU, the delivery time is at least 3 months.
Cryogenic liquid plant, the delivery time is at least 5 months.
Q4: What is your product quality assurance policy?
A: We offer a warranty period of 1 year, free lifetime technology support.
B. Supporting third-part to have a inspection, also provide SGS, TUV certificated.
C. Accept negotiation.
Q5: Do you offer OEM/ODM service?
A: Yes.
Q6: Does your product used or new? RTS product or customized product?
A:Our machine is new unit, and following your specific require to design and make it.
Model NO.
NZDO NZDN NZDON NZDOAR, NZDONAR
Condition
New
Certification
ISO, CE
Product Name
Cryogenic Air Separation Unit Plant
Key Word
Air Separation Unit
Working Medium
Air & Compressed Air & Purified Air
Electricity Consumption
≥80kw
Outlet Pressure
0.1-20MPa
Our Advantage
Factory Direct Sales
Salient Features
Low Energy Consumption & Full Automatic
Working Time
Must 24 Hours Every Day
Field
Both Medical & Industry Use
Working Principle
Cryogenic Asu Technological Process
Oxygen Purity
99%-99.8%( Medical Grade)
Nitrogen Purity
≤10ppm O2
Product
Oxygen Nitrogen Argon Gas, Lox, Lin, Lar
After-Sale Service
Lifetime Tech Support&Dispatch Engineer&Video Mee
Related Product
Cryogenic Liquid Tank, Vaporization System,
Transport Package
Nude Package & Wooden Case & Wooden Tray
Specification
50-30000Nm3/h
Trademark
NUZHUO
Origin
China
HS Code
8419601900
Production Capacity
5L/Min
Hot Tags: purity 99.6% cryogenic oxygen plants, China purity 99.6% cryogenic oxygen plants manufacturers, factory
