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Cryogenic Air Separation Plant Liquid Oxygen

  • Cryogenic Air Separation Plant Liquid Oxygen
  • Cryogenic Air Separation Plant Liquid Oxygen

Cryogenic Air Separation Plant Liquid Oxygen

    Transportation: Ocean,Land,Air

Product Description


Work Principle

The basic principle of air separation plants is use cryogenic rectification to condense air into liquid and separate the air according to the evaporation temperature of each component. The two-stage rectification tower simultaneously obtains pure nitrogen and pure oxygen at the top and bottom of the upper tower. It is also possible to take out liquid oxygen and liquid nitrogen from the evaporation side and the condensation side of the main cooling respectively. The air separation in the rectification tower is divided into two stages, air is separated for the first time in the lower tower to obtain liquid nitrogen and at the same time obtain oxygen- enriched liquid air. The oxygen- enriched liquid air is sent to the upper tower for rectification to obtain pure oxygen and pure nitrogen. The upper tower is divided into two sections: with the liquid- air inlet as the boundary. the upper part is the rectification section, which rectifies the rising gas, recovers the oxygen component, and purifies the nitrogen purity, and the lower section is the stripping section to remove nitrogen components in the liquid, separated to improve the oxygen purity of the liquid.

KunPeng has Air Separation Plants, Liquid Oxygen / Nitrogen Plant, PSA Oxygen/Nitrogen Generator, VPSA Oxygen / Nitrogen Generator, and so on. If there is any need, feel free to contact us.

Specifications Classification

Product Name
Cryogenic air separation plants
Oxygen Purity
Nitrogen Purity

Main Part
Air compressor system, Pre-cooling System, Air Purification System, Fractionating Column System, Turbo Expander System, Filling System, Instrument and Electric Control System
Application Field
Medical & Industrial & Animal husbandry & Defense

Process Introduction

Air Compression System
Air be compressed to 0.5-0.7 Mpa by air compressor, Imported centrifugal air compressor, high efficiency, low consumption, stable and reliable operation


Pre-cooling System
The air is pre-cooled to 5-10℃ in the pre-cooling unit, and the moisture is separated. The original imported screw refrigeration compressor and the air-conditioning unit combined with all imported refrigeration components are equipped with a water separator, manual and imported automatic drains to drain water regularly.


Air Purification System
Removing the remained moisture, carbon dioxide and hydrocarbons of compressed air in the molecular sieve purifier. The purifier adopts a vertical single-layer bed with simple and reliable structure and low resistance loss; built-in filter, blowing off and purifier regeneration at the same time; high-efficiency electric heater ensures complete regeneration of molecular sieve


Fractionating Column System (Cold Box)
The heating, cooling, liquid accumulation and purification of the fractionating tower can be completed in one way, and the operation is simple, quick and easy. Adopt aluminum plate-fin heat exchanger, aluminum convection sieve plate tower, the entire fractionating tower equipment pipeline adopts argon arc welding, the tower body and main pipeline in the cold box are made of high-strength aluminum alloy or stainless steel to increase the strength , Reduce the torsion damage of the pipeline. The equipment brackets, pipes and Valve brackets in the cold box shall be made of stainless steel or aluminum alloy. The cold box is insulated with pearl sand and slag wool to ensure that the loss of cold capacity is minimized. The cold box structure guarantees the overall strength and the requirements of anti-seismic and wind resistance, and guarantees the load-bearing capacity of the cold box. When the cold box is running, it is equipped with airtight protection and safety devices. The main equipment in the cold box is equipped with electrostatic grounding. The cold valve and pipeline in the cold box all connections are welded, and flange connections are avoided.


Turbo Expander System
The air expands and cools in the turbo expander and provides the cooling capacity required by the device.The turbo expander adopts gas bearing, which is simple and reliable, easy to operate, and high efficiency. The cold box of the expander is set separately for easy maintenance.


Heat Exchange System
The air exchanges heat with the refluxing oxygen, nitrogen, and dirty nitrogen in the heat exchanger of the fractionation tower, and is cooled close to the liquefaction temperature, and the refluxed oxygen, nitrogen, and dirty nitrogen are repeatedly heat exchanged to the ambient temperature;
Filling System
Single gas production: Internal compression process ( Cryogenic liquid Pump, High pressure vaporizer, Filling manifold).
Multi-gas production: External compression process (Oxygen & nitrogen & argon booster, Filling manifold).
Instrument and Electric Control System
Siemens imported brand, Fully automatic production system, Digital control system


Equipment layout drawing (according to civil engineering design), Process pipe design drawings, Instrument electrical design drawings, etc.

Cryogenic air separation plants is widely used, and different application scenarios have specific requirements for flow, purity, pressure, dew point and other parameters. In order to make your shopping experience happy, please leave your demand information, we will let professional engineers contact you, design specific technical solutions.

Technical information

Your kind requirement

Capacity ________Nm³/h
Purity _________%
Outlet pressure _________Mpa or Bar
Power ________V/HZ

Shenzhen KunPeng Precision Intelligent Technology Co., Ltd

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Shenzhen KunPeng Precision Intelligent Technology Co., Ltd

was established in 2013 and is located at 801, Junlin Building, Fulin South Road, Masantou Community, Guangming District, Shenzhen, China. We specialized in the design and manufacture of cryogenic air separation units, VPSA oxygen generator, compressed air purification equipment, PSA nitrogen generator, PSA oxygen generator, oil free gas booster, electric and pneumatic intelligent control valves, Temperature Control Valve, Shut-off valve manufacturer,SMT cleaning equipment. The product structure is matched up and down, one-stop service. The modern standard workshops and advanced product testing devices. The company always adheres to the business philosophy of"integrity, cooperation, and win-win", takes the development path of technology, diversification,scale, and develops toward high-tech industrialization. The company's products use "KP" as the registered trademark and are widely used in metallurgy and coal, power electronics, petrochemical, bio medicine, tire rubber, textile and chemical fiber, food preservation and other industries.

Company Info

  • Company Name: Shenzhen KunPeng Precision Intelligent Technology Co., Ltd
  • Representative: Mr Chen
  • Product/Service: Air Separation Plants , PSA Oxygen Generator , Liquid Oxygen Plant , Liquid Nitrogen Plant , Medical Oxygen Plant , PSA Nitrogen & Liquid Nitrogen Plant
  • Capital (Million US $): 10-50 Million
  • Year Established: 2009
  • Total Annual Sales Volume (Million US $): US$1 Million - US$2.5 Million
  • Export Percentage: 11% - 20%
  • Total Annual Purchase Volume (Million US $): US$2.5 Million - US$5 Million
  • No. of Production Lines: 10
  • No. of R&D Staff: 21 -30 People
  • No. of QC Staff: 5 -10 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 1,000-3,000 square meters
  • Factory Location: Junlin Building, Fulin South Road, Masantou Community, Guangming District, Shenzhen, China
  • Contact Person: Mr. Eden
  • Tel: 86-18575511218
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