Ball ring packing is an improved version of Rascal ring packing. Two rows of rectangular windows are opened on the side wall of the Rascal ring. One side of the cut ring wall is still connected to the wall surface, while the other side bends inward into the ring, forming an inward extending tongue leaf. The side edges of each tongue leaf overlap at the center of the ring.
The specific surface area and porosity of Bao'er ring packing are basically equivalent to those of Laxi ring, but due to the opening of the ring wall, the utilization rate of the inner space and surface of the ring is greatly improved, the gas flow resistance is reduced, and the liquid distribution is relatively uniform.
Compared with two types of fillers of the same material and specification, the gas flux of the Ball ring is increased by more than 50% and the mass transfer efficiency is increased by about 30% compared to the Rascal ring. Bao'er ring packing has been widely used due to its excellent performance.