1. Working principle of PSA nitrogen generator:
Pressure
Swing Adsorption (PSA) is a new type of gas adsorption separation
technology, which uses carbon molecular sieve as an adsorbent (carbon
molecular sieve is a kind of ink-colored particle made of coal powder as
a raw material, which is specially processed, and its surface is
distributed filled with countless micropores), using a two-bed PSA
device to separate nitrogen-rich from the air, thereby obtaining
nitrogen. The separation principle: In consideration of different
diameters of oxygen and nitrogen molecules (nitrogen small and oxygen
larger).
When
compressed air passes through the adsorption bed, oxygen molecules
directly enter the pores on the surface of the carbon molecular sieve
and are adsorbed, and nitrogen molecules cannot enter the pores and are
in the adsorption bed Enriched to form a certain purity of nitrogen. The
capacity of the carbon molecular sieve to absorb oxygen increases as
its pressure rises and decreases with pressure decrease. The principle
of adsorption when carbon molecular sieve is pressurized and desorption,
when depressurized, is used in conjunction with the circulating work of
AB tower to achieve the purpose of separation. Referred to as PSA
nitrogen generator.
PSA nitrogen production advantages:
(1) Fast gas production and stable purity.
(2) It can work at room temperature and common pressure (0.8MPa), without heating during bed regeneration, saving energy and economy.
(3) Simple operation and convenient maintenance.
(4) Continuous cycle work can be fully automated.
PSA nitrogen production advantages:
(1) Fast gas production and stable purity.
(2) It can work at room temperature and common pressure (0.8MPa), without heating during bed regeneration, saving energy and economy.
(3) Simple operation and convenient maintenance.
(4) Continuous cycle work can be fully automated.
2. Main specifications
+ Nitrogen flow: 0.5 - 1000Nm3/h
+ Nitrogen purity: 98 - 99.999%
+ Nitrogen pressure: 0.1 - 0.6Mpa ( Adjustable )
+ Atmospheric dew point: (-40) -- (-70)
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