Product Description
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 separation device 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
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
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.
Cryogenic equipment flow chart
Characters of cryogenic air separation plant:
1.The patented technology is mature and the process is optimized.
2. High quality, reliable price.
3. Quick and convenient to start / stop. Remote monitoring, easy to operate.
4. Low energy cost.
5. Delivery on time and excellent after-sales service
6. Excellent pre- and after-sales service.
7. The operation is stable and simple.
8. Extremely high level production and installation quality.
Applicantion
| 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 |
Uses of Cryogenic Manufacturing
Liquid oxygen is widely used in hospitals, aerospace, steel smelting and welding industries.
The use of liquid nitrogen
1 in the process of cell culture,
2 Liquid Nitrogen Tank Embryo Cryopreservation Technology
3 Active preservation of animal semen
4 Active preservation of biological samples.
5 Cryogenic treatment of metal materials.
6 Cryogenic assembly of precision parts.
Application of High Purity Argon
1. Production of protective gas for high-purity silicon and germanium crystals
2. It can be used as an inert gas for system cleaning, shielding and pressurization;
3. Processes such as chemical vapor deposition, sputtering and annealing
4. Chromatography carrier gas
5. Dilution gas of mixed gas in large scale integrated circuits
6. Filling arc lamps, fluorescent lamps and electronic tubes
7. Welding shielding gas
8. Used as shielding gas in the production of titanium, cobalt and other active metals
9. In black metallurgy, argon is used for blowing special steel to improve the quality of steel, especially a large amount of argon is consumed in the manufacture of stainless steel.
Company Profile
Henan Junfang Mechanical Equipment Co., Ltd., founded in 2008, is a professional gas equipment manufacturing enterprise. Its main products include nitrogen generator, oxygen generator, ammonia decomposition hydrogen production, and PSA technology applied to gas manufacturing equipment. The company has a professional R&D and technical team.
Professional technical support is the driving force for the company's sustainable development. On the one hand, we summarized in practice, found problems, improved technology and improved technology through communication between technicians and customers. At the same time, pay attention to the development of industry technology and learn new technologies. We also communicate with advanced enterprises in the world. We cooperate with advanced Japanese food companies to jointly break through the application of nitrogen in production. We also provide equipment for Samsung enterprises in South Korea. We have also cooperated with many university research offices in China to improve our technology
Packaging & Shipping
Our service for 99.999% purity Cryogenic Air Oxygen Nitrogen Argon Separation Plant for industrial and medical
1. Reply in 24 hours.
2. Customized sevive.
3. Every machine will be tested before the delivery.
4. Delivery on time and excellent after-sales service
5. High quality, reliable price.
Why choose us: Strong technical force, perfect quality assurance system. The company invests a large amount of revenue annually in the development and testing of new technologies and products. Strive for Standard Enterprise in Low Temperature Industry.
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.
FAQ
Q1: Are you a trading company or a manufacturer?
First. We are manufacturer, we have our own factory and engineers.
Secondly, we have our own international trade team to serve you.
Third, we provide lifetime technical support and the best after-sales service.
Q2: What are your payment terms?
A: 30%T/T in advance and balance before shipment.
- 30% T/T advance and irrevocable letter of credit at sight.
- Accept the negotiation.
Q3 How long is your delivery time?
A: Depends on the type of machine you buy.
PSA series, gas compressor, delivery time is 10-15 days.
Low temperature ASU, delivery time is at least 3 months.
Low temperature liquid plant, delivery time at least 5 months.
Q4: What is your product quality assurance policy?
A: We provide 1 year warranty and lifetime free technical support.
- Support third-party inspection, and provide SGS and TUV certification.
- Accept the negotiation.
Q5: Do you provide OEM/ODM service?
Yes.
Q6: Are your products used or new? RTS product or custom product? Our machines are new equipment, designed and manufactured according to your specific requirements.
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