Company Details
  • Hangzhou Saihu Air Separation Equipment Co., Ltd.

  •  [Zhejiang,China]
  • Business Type:Manufacturer , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:21% - 30%
  • Certs:ISO9001
  • Description:PSA Nitrogen Generators,Nitrogen PSA Generators,PSA Generators
Hangzhou Saihu Air Separation Equipment Co., Ltd. PSA Nitrogen Generators,Nitrogen PSA Generators,PSA Generators
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PSA Nitrogen generators

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    Payment Type: L/C,T/T
    Incoterm: FOB,CFR,CIF
    Delivery Time: 30 Days

Basic Info

Model No.: SPN-A

Usage: Nitrogen, Oxygen

Purpose: Gas separation

Parts: Adsorption Tower

Application Fields: New Energy

Noise Level: Low

Machine Size: Large

Condition: New

Certification: CCC, SGS, CE, ISO

Additional Info

Brand: Saihu

Transportation: Ocean,Land,Air

Place of Origin: Hangzhou

Certificate: SGS, ISO, CE

Product Description

Nitrogen GeneatorsComponents Description


1 Brief introduction

1.1 Air compressor

To make sure that the PSA air separation assembly is provided with required stable and sufficient feed air quality, RICH`s own branded air compressor will be advised in accordance with our PSA technical experience or other brands as customer specified for air source supply.

1.2 Compressed air cleaning assembly

The compressed air offered by air compressor first enters the compressed air cleaning assembly.


The compressed air passes through a Dryer to remove water, filters to remove dust and oil and it is deeply purified through an ultra-fine filter. According to system state, RICH specially designed a set of oil removing protector. This prudently designed compressed air cleaning assembly ensures the long service lifetime of molecular sieve. A part of treated cleaning air is used as instrument air.

1.3 Air tank assembly

Functions: buffer and reduce air pulsation, reduce system pressure fluctuation, ensure stable AC air passing. It helps AC removes most impurity and reduces load burden of PSA oxygen/nitrogen separation system.

Meanwhile, when adsorption towers switch functions, air tank provides a large amount of compressed air which is needed for PSA equipment fast pressure increasing in short period of time. This process quickly increases pressure in adsorption towers up to working pressure and ensures equipment reliable operation.

1.4 Oxygen and nitrogen separation assembly

Two adsorption towers, tower A and tower B, are equipped with special carbon molecular sieves. As clean compressed air flows towards outlet, passing through CMS in tower A, O2, CO2 and H2O are adsorbed and nitrogen flows out from adsorption tower outlet. CMS in tower A becomes saturated as time goes by. At this moment, tower A stops adsorption and compressed air enters tower B, tower B continues oxygen adsorption and nitrogen production. Meanwhile, CMS in tower A begins regeneration.

CMS regeneration is realized by lowering adsorption tower pressure to normal pressure and removing adsorbed O2, CO2 and H2O. Two towers make alternate adsorption and regeneration process and separate nitrogen from air and continuously produce nitrogen. This process is controlled by programmable logic controller (PLC). When outlet nitrogen purity does not reach set value, PLC activates, automatic discharge valve opens to empty unqualified nitrogen, which ensures unqualified nitrogen not to reach end user. Silencer reduces air discharge noise to less than 85dBA.

1.5 Nitrogen buffer tank assembly

Nitrogen buffer tank is used to equalize nitrogen pressure and flow rate coming from oxygen/nitrogen separation system and to ensure stable nitrogen supply.

In addition, after adsorption towers switch functions, some nitrogen returns to adsorption tower to assist tower pressure increasing and to protect bedding layer. This process plays an important role in process assistance

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