1. Excellent isofluid gas distribution technology

When the compressed air enters the adsorption tower from the pipeline, due to the small diameter of the pipeline and the coarse inner diameter of the adsorption tower, the flow rate of the compressed air in the adsorption tower is not uniform, and the gas flowing toward the inlet is rapidly flowing, and the nitrogen oxide molecules contacted by the molecular sieve are large. However, the gas flow near the inside of the adsorption tower is relatively slow, and the nitrogen and oxygen molecules contacted by the molecular sieve are relatively small, resulting in different adsorption saturation of the gas molecules by the molecular sieves at different positions. According to the comparative analysis, when the molecular sieve in the center position is working in 100% saturation, the working saturation of the molecular sieve next to the wall of the adsorption tower is only about 80%. The unsaturation of some molecular sieves directly reduces the working efficiency of the overall molecular sieve, resulting in a decrease in the ratio of nitrogen produced by the same amount of compressed air, which affects the further improvement of nitrogen production capacity per unit nitrogen.

The excellent isofluid airflow distribution device provided by Qi Hong includes a plate air distributor, a two-stage air flow buffer design, and a wide-mouth air flow collection device, so that when the compressed air enters the adsorption tower, it can be evenly distributed at an equal flow rate, ensuring the contact of each molecular sieve. The pressure is the same and the flow rate is the same to ensure that the molecular sieve is fully loaded and the maximum adsorption efficiency of the molecular sieve is used to achieve the best nitrogen production effect. At the same time, it also saves air and reduces energy consumption. 
According to the actual measurement, the nitrogen generator using a gas distribution system such as aerodynamics professional has a 8% increase in nitrogen production compared to a nitrogen generator without this technology when the equivalent compressed air is consumed.

2. Unique nitrogen purging process for vent tower 
In the traditional process of nitrogen production, when the adsorption tower is vented and analyzed, although the pressure in the tower is reduced to atmospheric pressure, the oxygen retained on the molecular sieve is released, and the tower remains high. Concentration oxygen. If this oxygen is not emptied, the oxygen will be adsorbed by the molecular sieve again when the tower is again in the adsorption process. The secondary adsorption of oxygen consumes the adsorption capacity of some of the carbon molecular sieves. Moreover, the high concentration of oxygen in the tower also directly reduces the nitrogen concentration in the mixed gas formed in the next step of pressure equalization in the tower, resulting in a decrease in the initial nitrogen production concentration from the adsorption column into the adsorption process and lowering the gas storage capacity. The average concentration of nitrogen. In order to increase the concentration of nitrogen production, to eliminate the negative impact of residual oxygen in the tower on the concentration of nitrogen, and to prevent repeated use of residual oxygen to consume the molecular sieve adsorption capacity. Qihong has set up a residual oxygen purging system, that is, venting the tower. After that, the vent column is purged with a suitable nitrogen gas in an adsorption tower in an adsorption state, and the oxygen in the vent column is blown out of the tower. When the air-releasing tower enters the adsorption process again, the nitrogen concentration in the tower is already high, which avoids the problem of the decrease of the initial nitrogen concentration in the adsorption tower, which increases the effective working capacity of the molecular sieve and ensures the production of high-purity nitrogen. 

3. Four technical processes to ensure 
high-purity nitrogen production at one time In the production process of high-purity nitrogen produced at one time, any imperfections in details will affect the production of high-purity nitrogen. Qihong Company has adopted four special technologies to study the key links in nitrogen production and ensured the high purity of nitrogen at one time. Four professional technologies are:

Equal flow gas distribution technology to improve the overall working efficiency of molecular sieves;

The pure nitrogen purge of the vent tower completely emptied the residual oxygen in the adsorption tower;

High-concentration nitrogen pressure equalization technology to increase nitrogen concentration in the adsorption tower;

Gas storage irrigation high nitrogen backfill technology to avoid unqualified nitrogen gas storage .