Usage: | Hydrogen, Nitrogen, Oxygen, Argon and Carbon Dioxide |
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Purpose: | Liquefied Natural Air |
Parts: | Air Purification Components |
Application Fields: | Metal Heat Treatment/Laser Cutting/Food Packaging |
Noise Level: | Low |
Machine Size: | Large |
Customization: |
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Liquid air separation equipment is an air separation unit that directly produces liquid oxygen, liquid nitrogen and argon. It is usually produced mainly for liquid products, and does not produce or produce gas products in small quantities. The commonly used liquid air separation processes are low pressure circulation process, low pressure circulation process with low temperature freezer, medium pressure circulation process, and medium pressure double expansion process.
The air passes through the air filter, enters the air compressor, compresses to 0.7mpa in the compressor, and then enters the purifier after cooling, where the impurities such as water, carbon dioxide and acetylene in the air are removed. The purified air enters the heat exchanger for heat exchange with the backflow polluted nitrogen. A part of the gas is pumped into the turbine expander through the outlet of the heat exchanger, and the expansion provides a cooling source for the whole set of devices. The other gases continue to cool through the second heat exchanger and then enter the rectifying tower, where they are separated by oxygen and nitrogen. Finally, qualified liquid nitrogen is obtained from the top of the rectifying tower. After decompression by the throttle valve, the liquid air at the bottom enters the condensing evaporator at the top of the tower and the nitrogen heat exchange at the top of the rectifying tower, and then passes through the cooler, the second heat exchanger and the main heat exchanger cooling box as the regenerative purifier.
1. Air Compressor
Air is compressed at a very pressure of 5-7 bar (kg/cm2). Air can be compressed at such low pressure by trouble free rotary compressor (Screw / Centrifugal Type/Oil free piston compressor of advanced technology are employed).
2. Pre-cooling System
The second stage of the process uses a low pressure refrigerant for pre-cooling the processed air to temperature around 12 deg C before it enters the purifier.
3. Purifier
The air enters a purifier consisting of twin Molecular Sieve driers, working alternatively. The Molecular Sieves remove the Carbon dioxide & moisture from the processed air before the air enters Air Separation Unit.
4. Cooling System
The air has to be cooled to sub zero temperatures for liquification & the cryogenic refrigeration & the cooling is provided by highly efficient turbo expander, which cools the air to temperature almost below -165 to-170 deg C
5. Separation Tower
Oil free, moisture free and Carbon Dioxide free air enters into low pressure fin type HEAT EXCHANGER where the air is cooled below sub zero temperatures by air expansion process in the turbo expander. Air gets liquefied when it enters the air separation column & gets separated into oxygen & nitrogen by the process of rectification. Oxygen is available at the outlet of the ASU at a purity of 99.6%. Nitrogen is also available t the outlet as a second product at purity of 99.9% up to 3ppm simultaneously without loss of oxygen product.
6. Oxygen/Nitrogen/Argon Gas Compressor
The final product in the form compressed Oxygen/Nitrogen goes to the high pressure oxygen cylinders at 150 bar or up to higher as required. This can be done by liquid oxygen pump is same models. We can use oil & water free compressor.
7. Gas Filling Cylinder
Cryogenic equipment flow chart
Characters of cryogenic air separation plant:
Application field | Oil refining Health care Aerospace laboratory, diving Food and beverage Medicine and biotechnology electronic Petroleum and natural gas Water and wastewater treatment energy, Metal production Welding and metal working chemicals Pulp and paper Automobiles and transportation equipment, Glass manufacturing. |
After Sales Service:
We provide high quality after sales service.All what we do is customer-centered and we do what the customers demand.We offer a one-year warranty!
Installation Services:
We will test the machine before shipment,and instructions and videos will be afforded to teach you how to install and use the machine.
Customization:
All machines can be customized according to your requirements such as voltage, material and details, tell us your requirements, we can customize the machine for you.
Quality guarantee:
1. Each machine undergoes rigorous testing before shipment.
2. Each machine uses high quality electrical components.
3.After-sales service commitment: Within 3 months after receiving the machine,we will contact you by phone or email to knowledge your using situation of the machine.
4. The warranty period is one year: During the warranty period, If the product has any damage caused by quality problems,we will provide repair service for free or free replacement,but the customer pays the freight from China to the local.location.
5.After the warranty period,we will continue to provide after-sales service.We promise that if your machine parts were damaged within 10 years,and you can purchase suitable replacement parts from our company.
1. who are we?
We are based in Henan, China, start from 2021,sell to North America(10.00%),South America(10.00%),Eastern Europe(10.00%),Eastern Asia(10.00%),Western Europe(10.00%),Central America(10.00%),Northern Europe(5.00%),Southern Europe(5.00%),Southeast Asia(3.00%).
There are total about 5-10 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Nitrogen Generator,Oxygen generator,PSA generator,PSA oxygen generator,PSA
4. why should you buy from us not from other suppliers?
The company has a professional R&D and technical team.Professional technical support is the driving force for the company's sustainable development.
5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW;
Accepted Payment Currency:USD,EUR,CNY;
Accepted Payment Type: T/T,L/C,Credit Card,Western Union;
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