Basic Info.
- Function: Liquefie and store gaseous oxygen, nitrogen, and argon.
- Technology: medium pressure cycle single expansion process, medium pressure cycle single expansion + air chiller process, medium pressure cycle double expansion (high and low temperature expansion refrigeration) process
- Working principle: The cooling capacity generated by expansion is used to liquefy the feed gas under a certain pressure.
- Application Field: Aerospace, petroleum, chemical, metallurgy, electric power, environmental protection, logistics, etc.
- Capacity: 1000-30000Nm3/h
- Product purity: Raw gas purity
- Design Service Life: 20 Years
- Core Components: Circulating booster system, distillation system, Turbo Expander System, Storage System, Instrument & Electrical Control system
Product Parameters
|
Products |
Capacity (Nm3/h) |
Purity (vol) |
Pressure out of cold box MPa (G) |
Temp. out of cold box(℃) |
Remark |
|
LOX |
1000-30000 |
Raw gas purity |
≥0.02 |
Supercooled |
|
|
LIN |
1000-30000 |
Raw gas purity |
≥0.02 |
Supercooled |
|
|
LAr |
1000-30000 |
Raw gas purity |
≥0.02 |
Supercooled |
Working Principle
The raw gas with a certain pressure is liquefied by the cooling capacity generated by the expansion of the medium-pressure circulating gas from the circulating booster, and the expanded circulating gas is de-circulated to the booster to complete the cycle.
|
No |
MAIN PART |
FUNCTION |
|
1 |
Circulating booster system |
Compressed the circulating air to required pressure to provide a medium pressure expansion air source for ASU. |
|
2 |
Distillation System (Cold Box) |
The raw gas is heat exchanged with the expander low-temperature gas and liquefied. |
|
3 |
Storage System |
Store the separated liquid products, such as liquid oxygen, liquid nitrogen, and liquid argon. |
|
4 |
Instrument Control System |
The entire air separation unit is equipped with a central control system to monitor, control and interlock the process parameters of the entire air separation unit (circulating booster, turbine expander, distillation system, liquid storage system). The own control system for machine unit communicates with the air separation unit control system by Modbus, so that its operation status can be monitored at the operating station in the central control room. |
|
5 |
Electrical Control System |
The electrical control system provides power for the electrical equipment of the air separation unit. A reasonable and optimized power supply and distribution system design can not only reduce investment and loss, but also be the cornerstone and guarantee for the reliable operation of the air separation unit. |
Company Profile
Suzhou Doer Gas & Chemical Equipment Co.,Ltd. is a high-tech enterprise, whose businesscovers R&D, design, manufacture, installation, complete engineering and industrial servicesof cryogenic equipment. Doer's total factoryarea is 135,000m² and the company has morethan 600 employees, including over 90 designand research & development professionals. Dedicated to becoming a leader in the field ofcryogenic liquid storage and transportation, DOER strives to provide clients with one-stopprofessional services.
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