Industrial Small Cryogenic Liquid Oxygen Air Separator Plant
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Product Description
The air separation plant is a set of deep-freezing method to extract liquid nitrogen from the air. The process adopts the deep freezing circulation principle of the low pressure turbine expander to make the air into a liquid state. Then, according to the boiling point of liquid oxygen and nitrogen, the air is rectified in the fractionator to obtain more than 99.99% liquid nitrogen.
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.
Product Specification
1. Air Separation Unit with normal temperature molecular sieves purification, booster-turbo expander, low-pressure rectification column, and argon
extraction system according to client’s requirement.
2. According to the product requirement, external compression,internal compression (air boost,nitrogen boost),self- pressurization
and other processes can be offered.
3. Blocking structure design of ASU, quick installation on site.
4. Extra low pressure process of ASU which reduce air compressor exhaust pressure and operation cost.
5. Advanced argon extraction process and higher argon extraction rate.
Technical Features
1). Full Automation All systems are designed for un-attended operation and automatic oxygen demand adjustment.
2). Lower Space Requirement The design and Instrument makes the plant size very compact,assembly on skids,prefabricated from factory.
3). Fast Start-up Start-up time is only 5 minutes to get desired Nitrogen purity. So these units can be switched ON&OFF as per Nitrogen demand changes.
4). High Reliabiity Very reliable for continuous and steady operation with constant Nitrogen purity. Plant availability time is better than 99% always.
5). Molecular Sieves life Expected Molecular sieves life is around 15-years i.e. whole life time of nitrogen plant.So no replacement costs.
6). Adjustable By altering flow,you can deliver nitrogen with precisely the right purity.
Kunpeng supply all kinds of small and medium sized air separation plants, nitrogen production equipment, oxygen production equipment and psa nitrogen generator & liquid nitrogen plant, etc. We will continue to develop and promote industrial applications and related products to help you improve production efficiency. In addition, we will also provide a range of industrial services, for your business to provide full support.
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