Views: 19 Author: Pingxiang Chemshun Ceramics Co., Ltd Publish Time: 2024-10-16 Origin: Pingxiang Chemshun Ceramics Co., Ltd
Plastic pall ring is made from heat resistant and chemical corrosion resistant plastics, including polyethylene (PE), polypropylene (PP), reinforced polypropylene (RPP), polyvinyl chloride (PVC), chloridized polyvinyl chloride (CPVC) and polyvinylidene fluoride (PVDF).
Pall rings (Pall ring) is to open a window made of two layers of Raschig rings in the wall of the upper and lower layers staggered apertures. The window openings cut ring blade side wall connected to the mother, the other side of the ring bend, almost in the center of the docking ring, bending direction opposite upper and lower blade. Since opening, the ring inner and outer surfaces of communication and space, so that uniform distribution of liquid and gas, and therefore, the resistance, flux and mass transfer efficiency was significantly improved ring.
Therefore, plastic pall ring has features such as high free volume, low pressure drop, low mass-transfer unit height, high flooding point, uniform gas-liquid contact, small specific gravity, high mass transfer efficiency and so on, and the application temperature in media ranges from 60to 150.
For these reasons it is widely used in the packing towers in petroleum industry, chemical industry, alkali-Chloride industry, coal gas industry and environmental protection, etc.