The KaiHe is the company which specialize in developing ,designing,
producing of cryogenic air separation plant,PSA nitrogen generator,oxygen generator ,nitrogen liquid plant, purification equipment and clean equipment.They are wildly be used at oil,energy,electronic,chemical,metallurgy,generate electricity,medicine,food ,hospital and others.
As for the different user we can offer individuation ,specialization nitrogen generator to satisfy user's different request depond to different standards.we mainly offer small liquid nitrogen generator forhigh school education ,laboratory,research institute to meet different request.
The small liquid nitrogen generator of KHN is based on pressure swing absorb principle, use the carbon molecular sieve as the adsorbent, get the nitrogen from the air with certainly pressure. The compressed air that be purifyed is goes into the absorber to adsorb by add pressure and reduce pressure & cast absorb.Because of motion effect,the spread rate of the oxygen in the carbon molecular sieve small hole is bigger than nitrogen,when the adsorb have not reach the balance,the nitrogen were concentrated in the gas phase to form the product nitrogen.Then reduce to normal atmosphere,the oxygen and impurity that be absorbed become rebirth.generally there are set two absorb columns ,one column is produce the nitrogen and the other is absorb to rebirth by the PLC system to control itself,let the double column work circulatory.Then the product nitrogen liquefyinged by stirling cooler.
This equipment produce flow is simple,normal temperature produce,high automation,easy to close and stop,the wearing part is little,easy to defense and manufacture cost is low.
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