Comparison of characteristics of raschig ring, saddle ring and pall ring

Comparison of characteristics of raschig ring, saddle ring and pall ring in the same way: both can be used as packings.

The difference between the saddle ring and raschig ring: the shape is different, the material is different, the performance is different, the use is different, and so on, there is a relatively big difference. The shape of metal saddle ring type packing: one end is 1/2 high primary raschig ring or Pall ring; The other end is a 1/5 high horn mouth, and there are two layers of cross-shaped fins in the center, which are divided into upper and lower layers to cross 45°. About 30% lower than pall ring pressure of the same size. It is suitable for filling carbon dioxide degassing tower, reaction tower and synthetic reaction tower.

The saddle ring has the following characteristics compared with the Pall ring packing, saddle packing and raschig ring packing:

1. Large flux and small pressure drop

2. High efficiency

3. Flexible operation

4. Good stain resistance

5. Small wetting rate is small

6. Conducive to liquid and liquid extraction operation is often used by customers for decarbonization, desulfurization, oil refining, chemical environmental protection and other industries, and has achieved good results.

Raschig ring was the first artificial packing used in the industry. It is usually made of ceramic or metal plate, and we name it ceramic racking ring and metal raschig ring. Its height is equal to the diameter, and the common size of the graphite raschig ring is 25mm~75mm(also as small as 6mm and as large as 150mm). Ceramic wall 2.5mm~9.5mm, metal ring 0.8mm~1.6mm. When strength is allowed, the walls of the ring should be as thin as possible. Although the mass transfer performance of lacing ring is not ideal, it is still used in some factories because of its simple structure, easy manufacture and low price.

Ceramic saddle ring is actually a new type of filler improved for Pall ring. And absorbed all the characteristics of the raschig ring. This is the relationship between the three, it can be said that the "saddle" is an upgrade package product, this packing uses conical flanging, the entire ring wall has four high holes, the ring adopts the unique structural design of the meter bar. In the process of use, it is mainly stacked in the way of point contact. This filler effectively increases the space between each other and effectively reduces the airflow resistance.

Due to the influence of the turning edge, it can be accumulated through the point contact. In addition, the gap between the packing layers is increased, and the effect of reducing resistance is also conducive to improving the efficiency of the packing.

Compared with Pall ring and raschig ring, this kind of packing not only has the performance promotion, but also has the performance of acid and heat resistance. Neither organic nor inorganic acids affect the properties of the filler. Therefore, it becomes the first choice for large quantities of fillers in high temperature environments.

Does everyone understand the contact between the ceramic ladder ring and the lacey ring and the Pall ring? In short, this is an upgraded version of high performance filler products based on the raschig ring and Pall ring, with many advantages of the two, while improving the shortcomings between the two, and better performance.