Electric welding special nitrogen machine manufacturer
Nitrogen can be used as a protective gas during welding.

Nitrogen separator air is mainly composed of two adsorption columns filled with molecular sieve, at normal temperature conditions, the compressed air is filtered, water drying and other purification treatment into the adsorption tower, in the adsorption tower air nitrogen is adsorbed by molecular sieve, so that nitrogen is enriched in the gas phase, and stored in the nitrogen buffer tank from the outlet. The molecular sieve that has completed adsorption in the other tower is rapidly depressurized, the adsorbed components are resolved, and the two towers are alternately circulated to obtain high-purity nitrogen.

After the air is compressed by the air compressor, after dust removal, oil removal, drying, into the air storage tank, through the air intake valve, left air intake valve into the left adsorption tower, the tower pressure rises, the nitrogen molecules in the compressed air are adsorbed by zeolite molecular sieve oxygen through the adsorption bed, through the left gas production valve, oxygen gas production valve into the oxygen storage tank, this process is called left suction, the duration of tens of seconds. After the end of the left suction process, the left adsorption tower and the right adsorption tower are connected through the pressure equalization valve, so that the pressure of the two towers is balanced, this process is called pressure equalization, and the duration is 3 to 5 seconds. After the end of the pressure balancing, the compressed air enters the right adsorption tower through the air intake valve and the right intake valve, the nitrogen molecules in the compressed air are adsorbed by zeolite molecular sieve, and the enriched oxygen enters the oxygen storage tank through the right gas production valve and the oxygen gas production valve, this process is called right suction, and the duration is tens of seconds. At the same time, the oxygen adsorbed by zeolite molecular sieve in the left adsorption tower is released back to the atmosphere through the pressure reduction of the left exhaust valve. On the contrary, when the left column adsorbs, the right column also desorbs. In order to completely discharge the nitrogen released from the pressure reduction in the molecular sieve into the atmosphere, oxygen is blown through a normally open reverse blow valve to purge the desorption adsorption tower and blow the nitrogen in the tower out of the adsorption tower. This process is called blowback, and it goes hand in hand with desorption. After the end of the right suction, enter the pressure balancing process, and then switch to the left suction process, and continue to follow the process, so as to continuously produce high-purity product nitrogen.