Liquid nitrogen generator 4000 Nm3/h KDN-4000 Pure Nitrogen Plant Cryogenic Liquid Carrier Gas
Specifications:
Nitrogen Plant KDN Series of 3500 ~ 4000 Nm3/h
| MODEL CONTENTS | KDN3500 | KDN-3700/1350Y | KDN-4000 | KDN-4000 |
| GAN/LIN flow | Nm3/h | 3500/50L/h | 3700/1350 | 4000/200 | 4000 |
| GAN/LIN purity | ppm | 5ppm(O2) | 10ppm(O2) | 1ppm(O2) | 0.1ppm(O2) |
| GAN/LIN pressure | MPa | 0.8 | 0.75 | 0.8 | 0.95 |
| Subcooled | K | 286.15/103.5 | 303.15/103.5 | 286/95.15 | 286.15 |
Typical Product: KDN-4000 Liquid nitrogen generator
Output, purity and pressure
| | Flow (Nm3/h) | Purity | Pressure MPa(G) | Subcooled (K) |
| GAN | 4000 | ≤20ppm(O2) | 0.6 | 286.15 |
| LN | 400L/h | ≤20ppm(O2) | 0.6 | 97.15 |
Description:
After the feed air is cleaned of dust and mechanical impurities in air filter, it is compressed in air compressor. The compressed air is then fed into air pre-cooling system to reach saturated condition.
The saturated and compressed air flows into switched molecular sieve adsorbers where such hydrocarbons as H2O, CO2 and C2H2 are adsorbed from the air.
A small part of purified process air is withdrawn to be instrument air and the rest air is sent into main heat exchanger, and then cooled with the expanded waste nitrogen to a saturation temperature with a certain extent moisture- bearing. The cooled air goes into the bottom of nitrogen column for participation in rectification. The nitrogen gas is obtained at the top of nitrogen column, at the same time the saturated and oxygen-rich liquid air at the bottom of column is throttled into the evaporation side of condenser evaporator to condense the nitrogen gas at the top of column, by which the liquid nitrogen is obtained.
The waste nitrogen gas is withdrawn from the top of main condenser evaporator to the expander for expansion and refrigeration after being rewarmed in main heat exchanger. The expanded waste nitrogen goes into main heat exchanger to be re-warmed to the normal temperature and out of cold box, part of which is as the regeneration gas of molecular sieve adsorber, and the rest is discharged to the air.
Applications:
1. Electronics & Semi Conductors
2. Filling Gas
3. Aerospace & Aeronautics Industries
4. Blanketing Gas
5. Bleaching Gas
6. Inert Gas
Competitive Advantage:
1. High market share
2. Professional design and manufacturing
3. Rich historical experience over 60 years
4. Quick delivery
5. PLC is used to control the automatic switchover of molecular sieve purification system such that the reliability and safety in running of the plant are greatly improved and the loss in switchover of air is reduced.
6. All pressure vessel of this nitrogen plant is designed and manufactured in accordance with ASME specifications for long, stable and reliable running, economization of energy, convenient operation and maintenance.
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Cryogenic Liquid Nitrogen Generator 4000 Nm3/h Pure Nitrogen Plant Images
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