New material industry is a new field with vitality and development potential in chemical industry. New chemical materials refer to the advanced materials with excellent performance and function emerging or developing in the field of chemical industry. They are knowledge intensive and technology intensive materials with high technology content and high value. In the fine chemical industry, advantageous enterprises are actively building intelligent digital workshops, accelerating the application of intelligent logistics management technology and unit in the production process, and promoting digital control, real-time monitoring of status information and adaptive control. DEAR air separation can provide customers with intelligent air separation unit and overall operation services, help customers develop rapidly in the industry, and constantly improve the construction of intelligent detection and supervision system, so that customers can reach a new level of intelligent management of air separation unit.
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Solution advantages |
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The unit adopts molecular sieve purification, booster turbine expander to supply the cooling capacity of the unit, and the whole rectification hydrogen-free argon production process, which is safe, reliable and economical. The main reasons are as follows:
1.Good safety The whole set of device has the advantages of low operating pressure, simple process, high equipment safety, long switching cycle of molecular sieve system, increased service life of switching valve, and reduced potential hazards. A large amount of liquid oxygen is extracted from the main cooling (K1) to minimize the possibility of hydrocarbon accumulation.
2.High reliability A large amount of surplus nitrogen can be sent to the water cooling tower, reducing the load of the water chiller, reducing the energy consumption and cost of air separation, so that the reliability of the device is further improved.
3.Convenient operation and maintenanceandsimple process |
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PRODUCT |
OUTPUT N m³/h |
PURITY |
PRESSURE OUT OF COLD BOX Mpa（G） |
TEMP |
NOTE |
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OXYGEN |
13000 |
≥99.6% O2 |
0.015 |
NORMAL |
EXTERNAL COMPRESS TO 2.5Mpa |
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LOX |
300 |
≥99.6% O2 |
Into tank |
SATURATED |
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Nitrogen |
26000 |
≤10ppmO2 |
0.008 |
NORMAL |
EXTERNAL COMPRESS TO 2.5Mpa |
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LAr |
400 |
≤1.5ppmO2 |
Into tank |
SATURATED |
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Note: the unit of measurement Nm3/h is measured at 0 ℃, 0.1013Mpa (A). It is called standard state quantity.
1.1 Take oxygen and nitrogen at different times
1.2 Operation cycle (interval between two large heating): ≥ two years
1.3 Heating and uncooling time of the device: ~ 36 hours
1.4 Starting time of the device (from the start of expander to the purity of oxygen product): ~ 40 hours
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Matching Units |
Unit |
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1. Centrifugal air compressor 2. Air pre-cooling system 3. Purification system 4. Booster turbine expander 5.Fractionator system 6.Oxygen compression system 7. Nitrogen compression system 8.Liquid storage system 9.Instrument control system 10.Electric control system |
1 Set 1 Set 1 Set 1 Set 1 Set 1 Set 1 Set 1 Set 1 Set 1 Set |
