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It is often used for chemical raw gas, pipeline purging, gas replacement, protective gas, product transportation, etc. Mainly used in the chemical industry, spandex, rubber, plastics, tires, polyurethane, biotechnology, intermediates and other fields.
Mainly used in food packaging, food preservation, medical packaging, medical replacement
gas, medical gas delivery. Nitrogen with purity greater than 99% or 99.9% can be obtained
by PSA nitrogen generator, which needs to be processed by removing bacteria, dust and
water, etc.In order to get high quality nitrogen gas to meet the special requirements of the
industry.
Generally used for packaging, soldering, sintering, annealing, reduction and storage of
electronic products. Mainly used in wave soldering, reflow Solder, crystal, piezoelectric,
electronic ceramic, electronic copper tape, lithium battery, electronic alloy, laser cutting material
and other industries. Therefore, the requirements for the purity changes due to different uses,
usually it requires not less than 99.9%, or higher, such as 99.99% purity, and some even use
nitrogen purification equipment to get much higher quality nitrogen with purity more than
99.9995% and dew point below -65℃.
Used for annealing protective gas, sintering protective gas, nitriding treatment, furnace
washing and purging gas, etc. It is widely used in metal heat treatment, powder metallurgy,
magnetic materials, copper processing, wire mesh, galvanized wire, semiconductor, powder
reduction, etc. Nitrogen gas with purity more than 99.9% is produced by the PSA nitrogen
generator and then combined with nitrogen purification equipment to obtain high-quality
nitrogen gas with purity more than 99.9995% and dew point below -65℃.
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 particles 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 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.
Note: Due to the limited volume of the modular nitrogen generator, when the nitrogen flow is less than or equal to 50Nm3 / H-99.99%, the modular nitrogen generator is recommended;When the nitrogen flow rate is greater than 50Nm3 / H-99.99%, twin-tower nitrogen generator is recommended.
