Special Coster garlands differ from A type A garland and Taylor garlands in that they are made significant in structure

Improvement: packing inside and outside two reinforcement ring and connection around 12 small ring, between the internal and external reinforcement ring is equipped with 16 half ring and eight half ring, inside and outside each half in the middle of the ring near the surface are respectively connected with the internal and external reinforcement ring, and the condition of uniform distribution, outer packing up like half ring uniform distribution, both inside and outside air voids is closer. The area between the petals and the column is less than a semicircle, which expands the vapor liquid circulation area. Moreover, the two garland is basically point contact, which has self-cleaning ability and is not easy to block. The packing structure is curved, with many contact points, good liquid distribution and high wetting rate. The structure of coster wreath has large specific surface area, increased voids, small resistance and large processing capacity.