DN145 flower wreath filling
The Coaster flower wreath differs from an A-type flower wreath and a Taylor flower wreath in that it has made significant structural improvements: the filler consists of two reinforcing rings, an inner and outer ring, and 12 small rings connecting the periphery. There are 16 outer half rings and 8 inner half rings between the inner and outer reinforcing rings, and each inner and outer half ring is connected to the inner and outer reinforcing rings near the middle of the curved surface, and is evenly distributed. This makes the outer half rings of the filler evenly distributed and the inner and outer void ratios closer. The area of the circular arc formed between the petals and the column of the Coaster flower wreath filling is smaller than that of the semicircle, which expands the area of gas-liquid circulation. Moreover, the two flower wreaths are basically in point contact, with self-cleaning ability and less likely to clog. The filling structure is curved, with multiple contact points, good liquid distribution, and high wetting rate. This structure gives the Coaster flower wreath a larger specific surface area, improved porosity, lower resistance, and greater processing capacity.
