‘Zhongsu Hengda is  nitrogen generator manufacturer , we adopt advanced pressure swing adsorption technology. The ambient air is compressed and purified to remove oil, water and dust, and then enters the pressure swing adsorption device composed of two adsorption towers filled with carbon molecular sieve. Compressed air flows through the adsorption tower from bottom to top, during which oxygen molecules are adsorbed on the surface of the carbon molecular sieve, nitrogen flows out from the upper end of the adsorption tower and enters the crude nitrogen buffer tank. After a period of time, the carbon molecular sieve in the adsorption tower is saturated with adsorbed oxygen and needs to be regenerated. Regeneration is achieved by stopping the adsorption step and reducing the pressure of the adsorption tower. The two adsorption towers alternate adsorption and regeneration to ensure continuous high purity nitrogen output (95%-99.9995%).