Introduction of membrane contactors for tower deoxidation equipment

Tower-type deoxidizers use a membrane contactor that minimizes residual oxygen levels. If the low concentration of oxygen is not well controlled, it will lead to an increase in the quality of the marketing drugs. The deoxidizing membrane is based on Henry's law, and the oxygen-free inert gas N2 is deposited in the hollow fiber membrane and the oxygen dissolved in the water in the reverse flow outside the hollow fiber membrane is deposited into the nitrogen gas, thereby bringing the water supply to the water quality requirement. The membrane contactor used can achieve ultra-low residual O2 liquid. It is well known that a small amount of dissolved oxygen in the liquid can cause corrosion or rust of metal pipelines, metal tanks or metal equipment, which may cause safety hazards or safety accidents.
 
Each contactor of the tower deoxidizer contains a hydrophobic hollow fiber membrane. The silk membrane provides a huge effective contact area for gas and liquid. The degassing membrane is quantifiable, compact, and compact, and is suitable for various environments. When the degassing gas passes through the hollow fiber membrane and water flows outside the hollow fiber membrane, the high O2 partial pressure difference causes the oxygen to escape from the liquid and is discharged along with the degassing, which is according to "Henry's Law". The DGS deoxygenation system requires a small amount of power to remove the gas. Thanks to its modular design, DGS can be easily tailored to customer requirements such as deoxidation capacity and deoxidation accuracy.
 
The working principle of tower deoxidation equipment:
The oxygen in the water is replaced by co2 to achieve the effect of deoxidation, and the deoxidation at room temperature is cold deoxidation. The 72 degree high temperature section is deoxidized and the water is instantaneously sterilized by thermal deoxidation. The three-stage heat exchange method saves energy. The system adopts atmospheric pressure displacement process to prepare deoxidized water, which is composed of mass transfer tower, centrifugal pump and automatic control system. The specially designed mass transfer tower mainly uses Henry's law and Dalton's law of partial pressure and adopts high-tech filler. It has a large specific surface area, greatly improves the area of the passage, and makes the co2 to the maximum extent. The process of deoxidation is realized by convection of water and co2 in the packed bed. The inside of the flood tower flows from top to bottom by the action of gravity, and the side of the co2 flows countercurrently from the bottom to the top by the pressure difference. Water forms a water film in the tower. When the water film flows from one filler to the next through the contact point, the water in the inner layer of the water film turns to the surface layer, and the water originally in the surface layer turns into the inner layer, so that The gas diffusion speed in the water is reduced, the oxygen release time is shortened, and the deoxidation efficiency is greatly improved. The residual oxygen in the cold tower deoxidation is less than 0.02 ppm. The residual oxygen content of the hot tower deoxidizer water is less than 0.015 ppm.