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Cryogenic Liquid Nitrogen Generator 4000 Nm3/h Pure Nitrogen Plant

Place of Origin: Zhejiang

Company Profile

Location: Hangzhou, Zhejiang, China (Mainland)
Business Type: Manufacturer
Main Products: Argon Plant, Argon Gas Generator, Cryogenic Air Separation Plant

Product Detail

Model No.: KDN

Product Description

 

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  A small part of purified process air is withdrawn to be instrument air and the rest air is sent into main heat exchanger, and then cooled with the expanded waste nitrogen to a saturation temperature with a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  The waste nitrogen gas is withdrawn from the top of main condenser evaporator to the expander for expansion and refrigeration after being rewarmed in main heat exchanger.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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